WMF fixes

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1722046 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hwmf/draw/HwmfDrawProperties.java

@@ -0,0 +1,189 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+
+package org.apache.poi.hwmf.draw;
+
+import java.awt.Color;
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+
+import org.apache.poi.hwmf.record.HwmfBrushStyle;
+import org.apache.poi.hwmf.record.HwmfColorRef;
+import org.apache.poi.hwmf.record.HwmfFill.WmfSetPolyfillMode.HwmfPolyfillMode;
+import org.apache.poi.hwmf.record.HwmfHatchStyle;
+import org.apache.poi.hwmf.record.HwmfMapMode;
+import org.apache.poi.hwmf.record.HwmfMisc.WmfSetBkMode.HwmfBkMode;
+import org.apache.poi.hwmf.record.HwmfPenStyle;
+
+public class HwmfDrawProperties {
+    private Rectangle2D window = new Rectangle2D.Double(0, 0, 1, 1);
+    private Rectangle2D viewport = new Rectangle2D.Double(0, 0, 1, 1);
+    private Point2D location = new Point2D.Double(0,0);
+    private HwmfMapMode mapMode = HwmfMapMode.MM_ANISOTROPIC;
+    private HwmfColorRef backgroundColor = new HwmfColorRef(Color.BLACK);
+    private HwmfBrushStyle brushStyle = HwmfBrushStyle.BS_SOLID;
+    private HwmfColorRef brushColor = new HwmfColorRef(Color.BLACK);
+    private HwmfHatchStyle brushHatch = HwmfHatchStyle.HS_HORIZONTAL;
+    private BufferedImage brushBitmap = null;
+    private double penWidth = 1;
+    private HwmfPenStyle penStyle = HwmfPenStyle.valueOf(0);
+    private HwmfColorRef penColor = new HwmfColorRef(Color.BLACK);
+    private double penMiterLimit = 10;
+    private HwmfBkMode bkMode = HwmfBkMode.OPAQUE;
+    private HwmfPolyfillMode polyfillMode = HwmfPolyfillMode.WINDING;
+
+    public void setViewportExt(double width, double height) {
+        double x = viewport.getX();
+        double y = viewport.getY();
+        double w = (width != 0) ? width : viewport.getWidth();
+        double h = (height != 0) ? height : viewport.getHeight();
+        viewport.setRect(x, y, w, h);
+    }
+
+    public void setViewportOrg(double x, double y) {
+        double w = viewport.getWidth();
+        double h = viewport.getHeight();
+        viewport.setRect(x, y, w, h);
+    }
+
+    public Rectangle2D getViewport() {
+        return (Rectangle2D)viewport.clone();
+    }
+
+    public void setWindowExt(double width, double height) {
+        double x = window.getX();
+        double y = window.getY();
+        double w = (width != 0) ? width : window.getWidth();
+        double h = (height != 0) ? height : window.getHeight();
+        window.setRect(x, y, w, h);
+    }
+
+    public void setWindowOrg(double x, double y) {
+        double w = window.getWidth();
+        double h = window.getHeight();
+        window.setRect(x, y, w, h);
+    }
+
+    public Rectangle2D getWindow() {
+        return (Rectangle2D)window.clone();
+    }
+
+    public void setLocation(double x, double y) {
+        location.setLocation(x, y);
+    }
+
+    public Point2D getLocation() {
+        return (Point2D)location.clone();
+    }
+
+    public void setMapMode(HwmfMapMode mapMode) {
+        this.mapMode = mapMode;
+    }
+
+    public HwmfMapMode getMapMode() {
+        return mapMode;
+    }
+
+    public HwmfBrushStyle getBrushStyle() {
+        return brushStyle;
+    }
+
+    public void setBrushStyle(HwmfBrushStyle brushStyle) {
+        this.brushStyle = brushStyle;
+    }
+
+    public HwmfHatchStyle getBrushHatch() {
+        return brushHatch;
+    }
+
+    public void setBrushHatch(HwmfHatchStyle brushHatch) {
+        this.brushHatch = brushHatch;
+    }
+
+    public HwmfColorRef getBrushColor() {
+        return brushColor;
+    }
+
+    public void setBrushColor(HwmfColorRef brushColor) {
+        this.brushColor = brushColor;
+    }
+
+    public HwmfBkMode getBkMode() {
+        return bkMode;
+    }
+
+    public void setBkMode(HwmfBkMode bkMode) {
+        this.bkMode = bkMode;
+    }
+
+    public HwmfPenStyle getPenStyle() {
+        return penStyle;
+    }
+
+    public void setPenStyle(HwmfPenStyle penStyle) {
+        this.penStyle = penStyle;
+    }
+
+    public HwmfColorRef getPenColor() {
+        return penColor;
+    }
+
+    public void setPenColor(HwmfColorRef penColor) {
+        this.penColor = penColor;
+    }
+
+    public double getPenWidth() {
+        return penWidth;
+    }
+
+    public void setPenWidth(double penWidth) {
+        this.penWidth = penWidth;
+    }
+
+    public double getPenMiterLimit() {
+        return penMiterLimit;
+    }
+
+    public void setPenMiterLimit(double penMiterLimit) {
+        this.penMiterLimit = penMiterLimit;
+    }
+
+    public HwmfColorRef getBackgroundColor() {
+        return backgroundColor;
+    }
+
+    public void setBackgroundColor(HwmfColorRef backgroundColor) {
+        this.backgroundColor = backgroundColor;
+    }
+
+    public HwmfPolyfillMode getPolyfillMode() {
+        return polyfillMode;
+    }
+
+    public void setPolyfillMode(HwmfPolyfillMode polyfillMode) {
+        this.polyfillMode = polyfillMode;
+    }
+
+    public BufferedImage getBrushBitmap() {
+        return brushBitmap;
+    }
+
+    public void setBrushBitmap(BufferedImage brushBitmap) {
+        this.brushBitmap = brushBitmap;
+    }
+}

src/scratchpad/src/org/apache/poi/hwmf/draw/HwmfGraphics.java

@@ -0,0 +1,185 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+
+package org.apache.poi.hwmf.draw;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.Paint;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.TexturePaint;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.GeneralPath;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+import java.util.ArrayDeque;
+import java.util.Deque;
+
+import org.apache.poi.hwmf.record.HwmfBrushStyle;
+import org.apache.poi.hwmf.record.HwmfHatchStyle;
+import org.apache.poi.hwmf.record.HwmfMisc.WmfSetBkMode.HwmfBkMode;
+import org.apache.poi.hwmf.record.HwmfPenStyle;
+import org.apache.poi.hwmf.record.HwmfPenStyle.HwmfLineDash;
+import org.apache.poi.util.Units;
+
+public class HwmfGraphics {
+    private final Graphics2D graphicsCtx;
+    private final Deque<HwmfDrawProperties> propStack = new ArrayDeque<HwmfDrawProperties>();
+    HwmfDrawProperties prop;
+
+    public HwmfGraphics(Graphics2D graphicsCtx) {
+        this.graphicsCtx = graphicsCtx;
+        prop = new HwmfDrawProperties();
+        propStack.push(prop);
+    }
+
+    public HwmfDrawProperties getProperties() {
+        return prop;
+    }
+
+    public void draw(Shape shape) {
+        HwmfLineDash lineDash = prop.getPenStyle().getLineDash();
+        if (lineDash == HwmfLineDash.NULL) {
+            // line is not drawn
+            return;
+        }
+
+        Shape tshape = fitShapeToView(shape);
+        BasicStroke stroke = getStroke();
+
+        // first draw a solid background line (depending on bkmode)
+        // only makes sense if the line is not solid
+        if (prop.getBkMode() == HwmfBkMode.OPAQUE && (lineDash != HwmfLineDash.SOLID && lineDash != HwmfLineDash.INSIDEFRAME)) {
+            graphicsCtx.setStroke(new BasicStroke(stroke.getLineWidth()));
+            graphicsCtx.setColor(prop.getBackgroundColor().getColor());
+            graphicsCtx.draw(tshape);
+        }
+
+        // then draw the (dashed) line
+        graphicsCtx.setStroke(stroke);
+        graphicsCtx.setColor(prop.getPenColor().getColor());
+        graphicsCtx.draw(tshape);
+    }
+
+    public void fill(Shape shape) {
+        if (prop.getBrushStyle() != HwmfBrushStyle.BS_NULL) {
+            GeneralPath gp = new GeneralPath(shape);
+            gp.setWindingRule(prop.getPolyfillMode().awtFlag);
+            Shape tshape = fitShapeToView(gp);
+            graphicsCtx.setPaint(getFill());
+            graphicsCtx.fill(tshape);
+        }
+
+        draw(shape);
+    }
+
+    protected Shape fitShapeToView(Shape shape) {
+        int scaleUnits = prop.getMapMode().scale;
+        Rectangle2D view = prop.getViewport(), win = prop.getWindow();
+        double scaleX, scaleY;
+        switch (scaleUnits) {
+        case -1:
+            scaleX = view.getWidth() / win.getWidth();
+            scaleY = view.getHeight() / win.getHeight();
+            break;
+        case 0:
+            scaleX = scaleY = 1;
+            break;
+        default:
+            scaleX = scaleY = scaleUnits / (double)Units.POINT_DPI;
+        }
+
+        AffineTransform at = new AffineTransform();
+        at.translate(view.getX(), view.getY());
+        at.scale(scaleX, scaleY);
+        at.translate(-win.getX(), -win.getY());
+        at.translate(-view.getX(), -view.getY());
+
+        return at.createTransformedShape(shape);
+    }
+
+    protected BasicStroke getStroke() {
+        Rectangle2D view = prop.getViewport(), win = prop.getWindow();
+        float width = (float)(prop.getPenWidth() * view.getWidth() / win.getWidth());
+        HwmfPenStyle ps = prop.getPenStyle();
+        int cap = ps.getLineCap().awtFlag;
+        int join = ps.getLineJoin().awtFlag;
+        float miterLimit = (float)prop.getPenMiterLimit();
+        float dashes[] = ps.getLineDash().dashes;
+        boolean dashAlt = ps.isAlternateDash();
+        // This value is not an integer index into the dash pattern array.
+        // Instead, it is a floating-point value that specifies a linear distance.
+        float dashStart = (dashAlt && dashes.length > 1) ? dashes[0] : 0;
+
+        return new BasicStroke(width, cap, join, miterLimit, dashes, dashStart);
+    }
+
+    protected Paint getFill() {
+        switch (prop.getBrushStyle()) {
+        default:
+        case BS_INDEXED:
+        case BS_PATTERN8X8:
+        case BS_DIBPATTERN8X8:
+        case BS_MONOPATTERN:
+        case BS_NULL: return null;
+        case BS_PATTERN:
+        case BS_DIBPATTERN:
+        case BS_DIBPATTERNPT: return getPatternPaint();
+        case BS_SOLID: return getSolidFill();
+        case BS_HATCHED: return getHatchedFill();
+        }
+    }
+
+    protected Paint getSolidFill() {
+        return prop.getBrushColor().getColor();
+    }
+
+    protected Paint getHatchedFill() {
+        int dim = 7, mid = 3;
+        BufferedImage bi = new BufferedImage(dim, dim, BufferedImage.TYPE_4BYTE_ABGR);
+        Graphics2D g = bi.createGraphics();
+        Color c = (prop.getBkMode() == HwmfBkMode.TRANSPARENT)
+            ? new Color(0, true)
+            : prop.getBackgroundColor().getColor();
+        g.setColor(c);
+        g.fillRect(0, 0, dim, dim);
+        g.setColor(prop.getBrushColor().getColor());
+        HwmfHatchStyle h = prop.getBrushHatch();
+        if (h == HwmfHatchStyle.HS_HORIZONTAL || h == HwmfHatchStyle.HS_CROSS) {
+            g.drawLine(0, mid, dim, mid);
+        }
+        if (h == HwmfHatchStyle.HS_VERTICAL || h == HwmfHatchStyle.HS_CROSS) {
+            g.drawLine(mid, 0, mid, dim);
+        }
+        if (h == HwmfHatchStyle.HS_FDIAGONAL || h == HwmfHatchStyle.HS_DIAGCROSS) {
+            g.drawLine(0, 0, dim, dim);
+        }
+        if (h == HwmfHatchStyle.HS_BDIAGONAL || h == HwmfHatchStyle.HS_DIAGCROSS) {
+            g.drawLine(0, dim, dim, 0);
+        }
+        g.dispose();
+        return new TexturePaint(bi, new Rectangle(0,0,dim,dim));
+    }
+
+    protected Paint getPatternPaint() {
+        BufferedImage bi = prop.getBrushBitmap();
+        return (bi == null) ? null
+            : new TexturePaint(bi, new Rectangle(0,0,bi.getWidth(),bi.getHeight()));
+    }
+}

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfBitmap16.java

@@ -18,12 +18,9 @@
 package org.apache.poi.hwmf.record;
 
 import java.awt.image.BufferedImage;
-import java.io.ByteArrayInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 
-import javax.imageio.stream.ImageInputStream;
-import javax.imageio.stream.MemoryCacheImageInputStream;
-
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
@@ -75,31 +72,45 @@ public class HwmfBitmap16 {
             assert(skipSize == 18);
             size += 18+LittleEndianConsts.INT_SIZE;
         }
-        
-        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
-        
-        int size2 = 0;
-        byte buf[] = new byte[widthBytes];
-        for (int h=0; h<height; h++) {
-            leis.read(buf);
-            size2 += widthBytes;
 
-            ImageInputStream iis = new MemoryCacheImageInputStream(new ByteArrayInputStream(buf));
-
-            for (int w=0; w<width; w++) {
-                long bitsAtPixel = iis.readBits(bitsPixel);
-                // TODO: is bitsPixel a multiple of 3 (r,g,b)
-                // which colortable should be used for the various bit sizes???
-                
-            }
-        }
-        
         int bytes = (((width * bitsPixel + 15) >> 4) << 1) * height;
-        assert (bytes == size2);
+        byte buf[] = new byte[bytes];
-
+        leis.read(buf);
-        size += size2;
+        
+        FileOutputStream fos = new FileOutputStream("bla16.bmp");
+        fos.write(buf);
+        fos.close();
+        
+        
+//        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+//        
+//        int size2 = 0;
+//        byte buf[] = new byte[widthBytes];
+//        for (int h=0; h<height; h++) {
+//            leis.read(buf);
+//            size2 += widthBytes;
+//
+//            ImageInputStream iis = new MemoryCacheImageInputStream(new ByteArrayInputStream(buf));
+//
+//            for (int w=0; w<width; w++) {
+//                long bitsAtPixel = iis.readBits(bitsPixel);
+//                // TODO: is bitsPixel a multiple of 3 (r,g,b)
+//                // which colortable should be used for the various bit sizes???
+//                
+//            }
+//        }
+//        
+//        assert (bytes == size2);
+//
+//        size += size2;
         
         
         return size;
     }
+
+    public BufferedImage getImage() {
+        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
+        return bi;
+    }
+
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfBitmapDib.java

@@ -19,12 +19,16 @@ package org.apache.poi.hwmf.record;
 
 import java.awt.Color;
 import java.awt.image.BufferedImage;
-import java.awt.image.IndexColorModel;
+import java.io.BufferedInputStream;
-import java.awt.image.WritableRaster;
+import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.imageio.ImageIO;
+
+import org.apache.poi.hssf.record.RecordFormatException;
+import org.apache.poi.util.LittleEndian;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
@@ -59,25 +63,25 @@ public class HwmfBitmapDib {
          * Each pixel in the bitmap is represented by a 16-bit value.
          * <br/>
          * If the Compression field of the BitmapInfoHeader Object is BI_RGB, the Colors field of DIB
-         *  is NULL. Each WORD in the bitmap array represents a single pixel. The relative intensities of 
+         *  is NULL. Each WORD in the bitmap array represents a single pixel. The relative intensities of
-         *  red, green, and blue are represented with 5 bits for each color component. The value for blue 
+         *  red, green, and blue are represented with 5 bits for each color component. The value for blue
-         *  is in the least significant 5 bits, followed by 5 bits each for green and red. The most significant 
+         *  is in the least significant 5 bits, followed by 5 bits each for green and red. The most significant
-         *  bit is not used. The color table is used for optimizing colors on palette-based devices, and 
+         *  bit is not used. The color table is used for optimizing colors on palette-based devices, and
-         *  contains the number of entries specified by the ColorUsed field of the BitmapInfoHeader 
+         *  contains the number of entries specified by the ColorUsed field of the BitmapInfoHeader
          *  Object.
          * <br/>
-         * If the Compression field of the BitmapInfoHeader Object is BI_BITFIELDS, the Colors field 
+         * If the Compression field of the BitmapInfoHeader Object is BI_BITFIELDS, the Colors field
          *  contains three DWORD color masks that specify the red, green, and blue components,
          *  respectively, of each pixel. Each WORD in the bitmap array represents a single pixel.
          * <br/>
-         * When the Compression field is set to BI_BITFIELDS, bits set in each DWORD mask MUST be 
+         * When the Compression field is set to BI_BITFIELDS, bits set in each DWORD mask MUST be
          *  contiguous and SHOULD NOT overlap the bits of another mask.
          */
         BI_BITCOUNT_4(0x0010),
         /**
-         * The bitmap has a maximum of 2^24 colors, and the Colors field of DIB is 
+         * The bitmap has a maximum of 2^24 colors, and the Colors field of DIB is
-         *  NULL. Each 3-byte triplet in the bitmap array represents the relative intensities of blue, green, 
+         *  NULL. Each 3-byte triplet in the bitmap array represents the relative intensities of blue, green,
-         *  and red, respectively, for a pixel. The Colors color table is used for optimizing colors used on 
+         *  and red, respectively, for a pixel. The Colors color table is used for optimizing colors used on
          *  palette-based devices, and MUST contain the number of entries specified by the ColorUsed
          *  field of the BitmapInfoHeader Object.
          */
@@ -85,23 +89,23 @@ public class HwmfBitmapDib {
         /**
          * The bitmap has a maximum of 2^24 colors.
          * <br/>
-         * If the Compression field of the BitmapInfoHeader Object is set to BI_RGB, the Colors field 
+         * If the Compression field of the BitmapInfoHeader Object is set to BI_RGB, the Colors field
-         *  of DIB is set to NULL. Each DWORD in the bitmap array represents the relative intensities of 
+         *  of DIB is set to NULL. Each DWORD in the bitmap array represents the relative intensities of
-         *  blue, green, and red, respectively, for a pixel. The high byte in each DWORD is not used. The 
+         *  blue, green, and red, respectively, for a pixel. The high byte in each DWORD is not used. The
-         *  Colors color table is used for optimizing colors used on palette-based devices, and MUST 
+         *  Colors color table is used for optimizing colors used on palette-based devices, and MUST
-         *  contain the number of entries specified by the ColorUsed field of the BitmapInfoHeader 
+         *  contain the number of entries specified by the ColorUsed field of the BitmapInfoHeader
          *  Object.
          * <br/>
          * If the Compression field of the BitmapInfoHeader Object is set to BI_BITFIELDS, the Colors
-         *  field contains three DWORD color masks that specify the red, green, and blue components, 
+         *  field contains three DWORD color masks that specify the red, green, and blue components,
          *  respectively, of each pixel. Each DWORD in the bitmap array represents a single pixel.
          * <br/>
-         * When the Compression field is set to BI_BITFIELDS, bits set in each DWORD mask must be 
+         * When the Compression field is set to BI_BITFIELDS, bits set in each DWORD mask must be
-         *  contiguous and should not overlap the bits of another mask. All the bits in the pixel do not 
+         *  contiguous and should not overlap the bits of another mask. All the bits in the pixel do not
          *  need to be used.
          */
         BI_BITCOUNT_6(0x0020);
-        
+
         int flag;
         BitCount(int flag) {
             this.flag = flag;
@@ -139,18 +143,18 @@ public class HwmfBitmapDib {
          */
         BI_BITFIELDS(0x0003),
         /**
-         * The image is a JPEG image, as specified in [JFIF]. This value SHOULD only be used in 
+         * The image is a JPEG image, as specified in [JFIF]. This value SHOULD only be used in
-         * certain bitmap operations, such as JPEG pass-through. The application MUST query for the 
+         * certain bitmap operations, such as JPEG pass-through. The application MUST query for the
-         * pass-through support, since not all devices support JPEG pass-through. Using non-RGB 
+         * pass-through support, since not all devices support JPEG pass-through. Using non-RGB
-         * bitmaps MAY limit the portability of the metafile to other devices. For instance, display device 
+         * bitmaps MAY limit the portability of the metafile to other devices. For instance, display device
          * contexts generally do not support this pass-through.
          */
         BI_JPEG(0x0004),
         /**
-         * The image is a PNG image, as specified in [RFC2083]. This value SHOULD only be 
+         * The image is a PNG image, as specified in [RFC2083]. This value SHOULD only be
-         * used certain bitmap operations, such as JPEG/PNG pass-through. The application MUST query 
+         * used certain bitmap operations, such as JPEG/PNG pass-through. The application MUST query
-         * for the pass-through support, because not all devices support JPEG/PNG pass-through. Using 
+         * for the pass-through support, because not all devices support JPEG/PNG pass-through. Using
-         * non-RGB bitmaps MAY limit the portability of the metafile to other devices. For instance, 
+         * non-RGB bitmaps MAY limit the portability of the metafile to other devices. For instance,
          * display device contexts generally do not support this pass-through.
          */
         BI_PNG(0x0005),
@@ -170,7 +174,7 @@ public class HwmfBitmapDib {
          * color indexes.
          */
         BI_CMYKRLE4(0x000D);
-        
+
         int flag;
         Compression(int flag) {
             this.flag = flag;
@@ -180,93 +184,113 @@ public class HwmfBitmapDib {
                 if (c.flag == flag) return c;
             }
             return null;
-        }        
-    }
-    
-    
-    int headerSize;
-    int headerWidth;
-    int headerHeight;
-    int headerPlanes;
-    BitCount headerBitCount;
-    Compression headerCompression;
-    long headerImageSize = -1;
-    int headerXPelsPerMeter = -1;
-    int headerYPelsPerMeter = -1;
-    long headerColorUsed = -1;
-    long headerColorImportant = -1;
-    
-    Color colorTable[];
-    int colorMaskRed=0,colorMaskGreen=0,colorMaskBlue=0;
-    
-    public int init(LittleEndianInputStream leis) throws IOException {
-        int size = 0;
-        size += readHeader(leis);
-        size += readColors(leis);
-        int size2;
-        switch (headerBitCount) {
-            default:
-            case BI_BITCOUNT_0:
-                throw new RuntimeException("JPG and PNG formats aren't supported yet.");
-            case BI_BITCOUNT_1:
-            case BI_BITCOUNT_2:
-            case BI_BITCOUNT_3:
-                size2 = readBitmapIndexed(leis);
-                break;
-            case BI_BITCOUNT_4:
-            case BI_BITCOUNT_5:
-            case BI_BITCOUNT_6:
-                size2 = readBitmapDirect(leis);
-                break;
         }
+    }
+
+    private static final int BMP_HEADER_SIZE = 14;
+    
+    private int headerSize;
+    private int headerWidth;
+    private int headerHeight;
+    private int headerPlanes;
+    private BitCount headerBitCount;
+    private Compression headerCompression;
+    private long headerImageSize = -1;
+    @SuppressWarnings("unused")
+    private int headerXPelsPerMeter = -1;
+    @SuppressWarnings("unused")
+    private int headerYPelsPerMeter = -1;
+    private long headerColorUsed = -1;
+    @SuppressWarnings("unused")
+    private long headerColorImportant = -1;
+
+    @SuppressWarnings("unused")
+    private Color colorTable[];
+    @SuppressWarnings("unused")
+    private int colorMaskRed=0,colorMaskGreen=0,colorMaskBlue=0;
+
+    // size of header and color table, for start of image data calculation
+    private int introSize;
+    private byte imageData[];
+
+    public int init(LittleEndianInputStream leis, int recordSize) throws IOException {
+        leis.mark(10000);
         
-        assert( headerSize != 0x0C || ((((headerWidth * headerPlanes * headerBitCount.flag + 31) & ~31) / 8) * Math.abs(headerHeight)) == size2);
+        // need to read the header to calculate start of bitmap data correct
-        assert ( headerSize == 0x0C || headerImageSize == size2 );
+        introSize = readHeader(leis);
+        assert(introSize == headerSize);
+        introSize += readColors(leis);
+        assert(introSize < 10000);
+
+        int fileSize = (headerImageSize != 0) ? (int)(introSize+headerImageSize) : recordSize;
         
-        size += size2;
+        imageData = new byte[fileSize];
+        leis.reset();
+        leis.read(imageData, 0, fileSize);
         
-        return size;
+        assert( headerSize != 0x0C || ((((headerWidth * headerPlanes * headerBitCount.flag + 31) & ~31) / 8) * Math.abs(headerHeight)) == headerImageSize);
+
+        return fileSize;
     }
 
     protected int readHeader(LittleEndianInputStream leis) throws IOException {
         int size = 0;
-        
+
         /**
          * DIBHeaderInfo (variable): Either a BitmapCoreHeader Object or a
          * BitmapInfoHeader Object that specifies information about the image.
-         * 
+         *
          * The first 32 bits of this field is the HeaderSize value.
          * If it is 0x0000000C, then this is a BitmapCoreHeader; otherwise, this is a BitmapInfoHeader.
          */
         headerSize = leis.readInt();
         size += LittleEndianConsts.INT_SIZE;
-        
-        // BitmapCoreHeader
-        // A 16-bit unsigned integer that defines the width of the DIB, in pixels.
-        headerWidth = leis.readUShort();
-        // A 16-bit unsigned integer that defines the height of the DIB, in pixels.
-        headerHeight = leis.readUShort();
-        // A 16-bit unsigned integer that defines the number of planes for the target
-        // device. This value MUST be 0x0001.
-        headerPlanes = leis.readUShort();
-        // A 16-bit unsigned integer that defines the format of each pixel, and the
-        // maximum number of colors in the DIB.
-        headerBitCount = BitCount.valueOf(leis.readUShort());
-        size += 4*LittleEndianConsts.SHORT_SIZE;
 
-        if (headerSize > 0x0C) {
+        if (headerSize == 0x0C) {
+            // BitmapCoreHeader
+            // A 16-bit unsigned integer that defines the width of the DIB, in pixels.
+            headerWidth = leis.readUShort();
+            // A 16-bit unsigned integer that defines the height of the DIB, in pixels.
+            headerHeight = leis.readUShort();
+            // A 16-bit unsigned integer that defines the number of planes for the target
+            // device. This value MUST be 0x0001.
+            headerPlanes = leis.readUShort();
+            // A 16-bit unsigned integer that defines the format of each pixel, and the
+            // maximum number of colors in the DIB.
+            headerBitCount = BitCount.valueOf(leis.readUShort());
+            size += 4*LittleEndianConsts.SHORT_SIZE;
+        } else {
             // BitmapInfoHeader
-            // A 32-bit unsigned integer that defines the compression mode of the 
+            // A 32-bit signed integer that defines the width of the DIB, in pixels.
-            // DIB. 
+            // This value MUST be positive.
+            // This field SHOULD specify the width of the decompressed image file,
+            // if the Compression value specifies JPEG or PNG format.
+            headerWidth = leis.readInt();
+            // A 32-bit signed integer that defines the height of the DIB, in pixels.
+            // This value MUST NOT be zero.
+            // - If this value is positive, the DIB is a bottom-up bitmap,
+            //   and its origin is the lower-left corner.
+            //   This field SHOULD specify the height of the decompressed image file,
+            //   if the Compression value specifies JPEG or PNG format.
+            // - If this value is negative, the DIB is a top-down bitmap,
+            //   and its origin is the upper-left corner. Top-down bitmaps do not support compression.
+            headerHeight = leis.readInt();
+            // A 16-bit unsigned integer that defines the number of planes for the target
+            // device. This value MUST be 0x0001.
+            headerPlanes = leis.readUShort();
+            // A 16-bit unsigned integer that defines the format of each pixel, and the
+            // maximum number of colors in the DIB.
+            headerBitCount = BitCount.valueOf(leis.readUShort());
+            // A 32-bit unsigned integer that defines the compression mode of the DIB.
             // This value MUST NOT specify a compressed format if the DIB is a top-down bitmap,
             // as indicated by the Height value.
             headerCompression = Compression.valueOf((int)leis.readUInt());
             // A 32-bit unsigned integer that defines the size, in bytes, of the image.
             // If the Compression value is BI_RGB, this value SHOULD be zero and MUST be ignored.
-            // If the Compression value is BI_JPEG or BI_PNG, this value MUST specify the size of the JPEG 
+            // If the Compression value is BI_JPEG or BI_PNG, this value MUST specify the size of the JPEG
             // or PNG image buffer, respectively.
             headerImageSize = leis.readUInt();
-            // A 32-bit signed integer that defines the horizontal resolution, 
+            // A 32-bit signed integer that defines the horizontal resolution,
             // in pixels-per-meter, of the target device for the DIB.
             headerXPelsPerMeter = leis.readInt();
             // A 32-bit signed integer that defines the vertical resolution,
@@ -278,8 +302,9 @@ public class HwmfBitmapDib {
             // A 32-bit unsigned integer that defines the number of color indexes that are
             // required for displaying the DIB. If this value is zero, all color indexes are required.
             headerColorImportant = leis.readUInt();
-            size += 6*LittleEndianConsts.INT_SIZE;
+            size += 8*LittleEndianConsts.INT_SIZE+2*LittleEndianConsts.SHORT_SIZE;
         }
+        assert(size == headerSize);
         return size;
     }
 
@@ -297,7 +322,7 @@ public class HwmfBitmapDib {
             return readRGBQuad(leis, 16);
         case BI_BITCOUNT_3:
             // 256 colors
-            return readRGBQuad(leis, 256);
+            return readRGBQuad(leis, (int)headerColorUsed);
         case BI_BITCOUNT_5:
             colorMaskRed=0xFF;
             colorMaskGreen=0xFF;
@@ -316,7 +341,7 @@ public class HwmfBitmapDib {
                 colorMaskRed = leis.readInt();
                 return 3*LittleEndianConsts.INT_SIZE;
             }
-        case BI_BITCOUNT_6:    
+        case BI_BITCOUNT_6:
             if (headerCompression == Compression.BI_RGB) {
                 colorMaskBlue = colorMaskGreen = colorMaskRed = 0xFF;
                 return 0;
@@ -329,7 +354,7 @@ public class HwmfBitmapDib {
             }
         }
     }
-    
+
     protected int readRGBQuad(LittleEndianInputStream leis, int count) throws IOException {
         int size = 0;
         List<Color> colorList = new ArrayList<Color>();
@@ -346,96 +371,32 @@ public class HwmfBitmapDib {
         colorTable = colorList.toArray(new Color[colorList.size()]);
         return size;
     }
-    
+
-    protected int readBitmapIndexed(LittleEndianInputStream leis) throws IOException {
+    public BufferedImage getImage() {
-        assert(colorTable != null);
+        if (imageData == null) {
-        byte r[] = new byte[colorTable.length];
+            throw new RecordFormatException("bitmap not initialized ... need to call init() before");
-        byte g[] = new byte[colorTable.length];
-        byte b[] = new byte[colorTable.length];
-        for (int i=0; i<colorTable.length; i++) {
-            r[i] = (byte)colorTable[i].getRed();
-            g[i] = (byte)colorTable[i].getGreen();
-            b[i] = (byte)colorTable[i].getBlue();
         }
-        int bits = 32-Integer.numberOfLeadingZeros(colorTable.length);
+
-        IndexColorModel cm = new IndexColorModel(bits,colorTable.length,r,g,b);
+        // create the image data and leave the parsing to the ImageIO api
+        byte buf[] = new byte[BMP_HEADER_SIZE+imageData.length];
+
+        // https://en.wikipedia.org/wiki/BMP_file_format #  Bitmap file header
+        buf[0] = (byte)'B';
+        buf[1] = (byte)'M';
+        // the full size of the bmp
+        LittleEndian.putInt(buf, 2, (int)(BMP_HEADER_SIZE + introSize + headerImageSize));
+        // the next 4 bytes are unused
+        LittleEndian.putInt(buf, 6, 0);
+        // start of image = BMP header length + dib header length + color tables length
+        LittleEndian.putInt(buf, 10, BMP_HEADER_SIZE + introSize);
         
-        BufferedImage bi = new BufferedImage(headerWidth, headerHeight, BufferedImage.TYPE_BYTE_INDEXED, cm);
+        System.arraycopy(imageData, 0, buf, BMP_HEADER_SIZE, imageData.length);
-        WritableRaster wr = bi.getRaster();
         
-        int pixelCount = headerWidth*headerHeight;
+        try {
-        int size = 0;
+            return ImageIO.read(new ByteArrayInputStream(buf));
-        for (int pixel=0; pixel<pixelCount; size++) {
+        } catch (IOException e) {
-            int v = leis.readUByte();
+            // ... shouldn't happen
-            switch (headerBitCount) {
+            throw new RecordFormatException("invalid bitmap data", e);
-            default:
-                throw new RuntimeException("invalid bitcount for indexed image");
-            case BI_BITCOUNT_1:
-                for (int j=0; j<8 && pixel<pixelCount; j++,pixel++) {
-                    wr.setSample(pixel/headerWidth,pixel%headerWidth,0,(v>>(7-j))&1);
-                }
-                break;
-            case BI_BITCOUNT_2:
-                wr.setSample(pixel/headerWidth, pixel%headerWidth, 0, (v>>4)&15);
-                pixel++;
-                if (pixel<pixelCount) {
-                    wr.setSample(pixel/headerWidth, pixel%headerWidth, 0, v&15);
-                    pixel++;
-                }
-                break;
-            case BI_BITCOUNT_3:
-                wr.setSample(pixel/headerWidth, pixel%headerWidth, 0, v);
-                pixel++;
-                break;
-            }
         }
-        return size;
-    }
-    
-    protected int readBitmapDirect(LittleEndianInputStream leis) throws IOException {
-        assert(colorTable == null);
-        
-        BufferedImage bi = new BufferedImage(headerWidth, headerHeight, BufferedImage.TYPE_INT_RGB);
-        WritableRaster wr = bi.getRaster();
-        
-        int bitShiftRed=0,bitShiftGreen=0,bitShiftBlue=0;
-        if (headerCompression == Compression.BI_BITFIELDS) {
-            bitShiftGreen = 32-Integer.numberOfLeadingZeros(this.colorMaskBlue);
-            bitShiftRed = 32-Integer.numberOfLeadingZeros(this.colorMaskGreen);
-        }
-        
-        int pixelCount = headerWidth*headerHeight;
-        int size = 0;
-        int rgb[] = new int[3];
-        for (int pixel=0; pixel<pixelCount; pixel++) {
-            int v;
-            switch (headerBitCount) {
-            default:
-                throw new RuntimeException("invalid bitcount for indexed image");
-            case BI_BITCOUNT_4:
-                v = leis.readUShort();
-                rgb[0] = (v & colorMaskRed) >> bitShiftRed;
-                rgb[1] = (v & colorMaskGreen) >> bitShiftGreen;
-                rgb[2] = (v & colorMaskBlue) >> bitShiftBlue;
-                size += LittleEndianConsts.SHORT_SIZE;
-                break;
-            case BI_BITCOUNT_5:
-                rgb[2] = leis.readUByte();
-                rgb[1] = leis.readUByte();
-                rgb[0] = leis.readUByte();
-                size += 3*LittleEndianConsts.BYTE_SIZE;
-                break;
-            case BI_BITCOUNT_6:
-                v = leis.readInt();
-                rgb[0] = (v & colorMaskRed) >> bitShiftRed;
-                rgb[1] = (v & colorMaskGreen) >> bitShiftGreen;
-                rgb[2] = (v & colorMaskBlue) >> bitShiftBlue;
-                size += LittleEndianConsts.INT_SIZE;
-                break;
-            }
-            wr.setPixel(pixel/headerWidth,pixel%headerWidth,rgb);
-        }
-        
-        return size;
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfColorRef.java

@@ -23,15 +23,21 @@ import java.io.IOException;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
+/**
+ * A 32-bit ColorRef Object that defines the color value.
+ * Red (1 byte):  An 8-bit unsigned integer that defines the relative intensity of red.
+ * Green (1 byte):  An 8-bit unsigned integer that defines the relative intensity of green.
+ * Blue (1 byte):  An 8-bit unsigned integer that defines the relative intensity of blue.
+ * Reserved (1 byte):  An 8-bit unsigned integer that MUST be 0x00.
+ */
 public class HwmfColorRef {
-    /**
+    private Color colorRef = Color.BLACK;
-     * A 32-bit ColorRef Object that defines the color value.
+    
-     * Red (1 byte):  An 8-bit unsigned integer that defines the relative intensity of red.
+    public HwmfColorRef() {}
-     * Green (1 byte):  An 8-bit unsigned integer that defines the relative intensity of green.
+    
-     * Blue (1 byte):  An 8-bit unsigned integer that defines the relative intensity of blue.
+    public HwmfColorRef(Color colorRef) {
-     * Reserved (1 byte):  An 8-bit unsigned integer that MUST be 0x00.
+        this.colorRef = colorRef;
-     */
+    }
-    Color colorRef;
     
     public int init(LittleEndianInputStream leis) throws IOException {
         int red = leis.readUByte();
@@ -44,4 +50,7 @@ public class HwmfColorRef {
         return 4*LittleEndianConsts.BYTE_SIZE;
     }
 
+    public Color getColor() {
+        return colorRef;
+    }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfDraw.java

@@ -17,8 +17,13 @@
 
 package org.apache.poi.hwmf.record;
 
+import java.awt.Polygon;
+import java.awt.geom.GeneralPath;
+import java.awt.geom.Line2D;
+import java.awt.geom.Point2D;
 import java.io.IOException;
 
+import org.apache.poi.hwmf.draw.HwmfGraphics;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
@@ -28,102 +33,140 @@ public class HwmfDraw {
      * point.
      */
     public static class WmfMoveTo implements HwmfRecord {
-        
+
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units.
          */
-        int y;
+        private int y;
-        
+
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units.
          */
-        int x;
+        private int x;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.moveTo;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             y = leis.readShort();
             x = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+        
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setLocation(x, y);
+        }
     }
-    
+
     /**
      * The META_LINETO record draws a line from the drawing position that is defined in the playback
      * device context up to, but not including, the specified point.
      */
     public static class WmfLineTo implements HwmfRecord {
-        
+
         /**
          * A 16-bit signed integer that defines the vertical component of the drawing
          * destination position, in logical units.
          */
-        int y;
+        private int y;
-        
+
         /**
          * A 16-bit signed integer that defines the horizontal component of the drawing
          * destination position, in logical units.
          */
-        int x;
+        private int x;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.lineTo;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             y = leis.readShort();
             x = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+        
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            Point2D start = ctx.getProperties().getLocation();
+            Line2D line = new Line2D.Double(start.getX(), start.getY(), x, y);
+            ctx.draw(line);
+            ctx.getProperties().setLocation(x, y);
+        }
     }
-    
+
     /**
      * The META_POLYGON record paints a polygon consisting of two or more vertices connected by
      * straight lines. The polygon is outlined by using the pen and filled by using the brush and polygon fill
      * mode that are defined in the playback device context.
      */
     public static class WmfPolygon implements HwmfRecord {
-        
+
         /**
          * A 16-bit signed integer that defines the number of points in the array.
          */
-        int numberofPoints;
+        private int numberofPoints;
-        
+
         short xPoints[], yPoints[];
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.polygon;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             numberofPoints = leis.readShort();
             xPoints = new short[numberofPoints];
             yPoints = new short[numberofPoints];
-            
+
             for (int i=0; i<numberofPoints; i++) {
                 // A 16-bit signed integer that defines the horizontal (x) coordinate of the point.
                 xPoints[i] = leis.readShort();
                 // A 16-bit signed integer that defines the vertical (y) coordinate of the point.
                 yPoints[i] = leis.readShort();
             }
-            
+
             return LittleEndianConsts.SHORT_SIZE+numberofPoints*LittleEndianConsts.INT_SIZE;
         }
+        
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.fill(getShape());
+        }
+        
+        protected Polygon getShape() {
+            Polygon polygon = new Polygon();
+            for(int i = 0; i < numberofPoints; i++) {
+                polygon.addPoint(xPoints[i], yPoints[i]);
+            }
+            return polygon;
+        }
     }
-    
+
     /**
      * The META_POLYLINE record draws a series of line segments by connecting the points in the
      * specified array.
      */
     public static class WmfPolyline extends WmfPolygon {
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.polyline;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.draw(getShape());
+        }
     }
-    
+
     /**
      * The META_ELLIPSE record draws an ellipse. The center of the ellipse is the center of the specified
      * bounding rectangle. The ellipse is outlined by using the pen and is filled by using the brush; these
@@ -134,27 +177,29 @@ public class HwmfDraw {
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int bottomRect;
+        private int bottomRect;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int rightRect;
+        private int rightRect;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the bounding rectangle.
          */
-        int topRect;
+        private int topRect;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the upper-left corner of the bounding rectangle.
          */
-        int leftRect;
+        private int leftRect;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.ellipse;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             bottomRect = leis.readShort();
             rightRect = leis.readShort();
@@ -162,6 +207,11 @@ public class HwmfDraw {
             leftRect = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+        
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
 
@@ -173,27 +223,29 @@ public class HwmfDraw {
          * A 16-bit unsigned integer used to index into the WMF Object Table to get
          * the region to be framed.
          */
-        int region;  
+        private int region;
         /**
          * A 16-bit unsigned integer used to index into the WMF Object Table to get the
          * Brush to use for filling the region.
          */
-        int brush;
+        private int brush;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the
          * region frame.
          */
-        int height;
+        private int height;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the
          * region frame.
          */
-        int width;
+        private int width;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.frameRegion;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             region = leis.readUShort();
             brush = leis.readUShort();
@@ -201,6 +253,11 @@ public class HwmfDraw {
             width = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+        
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
     /**
@@ -209,33 +266,35 @@ public class HwmfDraw {
      * device context. The polygons drawn by this function can overlap.
      */
     public static class WmfPolyPolygon implements HwmfRecord {
-        
+
         /**
          * A 16-bit unsigned integer that defines the number of polygons in the object.
          */
-        int numberOfPolygons;
+        private int numberOfPolygons;
-        
+
         /**
          * A NumberOfPolygons array of 16-bit unsigned integers that define the number of
          * points for each polygon in the object.
          */
-        int pointsPerPolygon[];
+        private int pointsPerPolygon[];
-        
-        /**
-         * An array of 16-bit unsigned integers that define the coordinates of the polygons.
-         */
-        int xPoints[][];
 
         /**
          * An array of 16-bit unsigned integers that define the coordinates of the polygons.
          */
-        int yPoints[][];
+        private int xPoints[][];
-        
+
-        
+        /**
+         * An array of 16-bit unsigned integers that define the coordinates of the polygons.
+         */
+        private int yPoints[][];
+
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.polyPolygon;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             // see http://secunia.com/gfx/pdf/SA31675_BA.pdf ;)
             numberOfPolygons = leis.readUShort();
@@ -244,26 +303,31 @@ public class HwmfDraw {
             yPoints = new int[numberOfPolygons][];
 
             int size = LittleEndianConsts.SHORT_SIZE;
-            
+
             for (int i=0; i<numberOfPolygons; i++) {
                 pointsPerPolygon[i] = leis.readUShort();
                 size += LittleEndianConsts.SHORT_SIZE;
             }
-            
+
             for (int i=0; i<numberOfPolygons; i++) {
-                
+
                 xPoints[i] = new int[pointsPerPolygon[i]];
                 yPoints[i] = new int[pointsPerPolygon[i]];
-                
+
                 for (int j=0; j<pointsPerPolygon[i]; j++) {
                     xPoints[i][j] = leis.readUShort();
                     yPoints[i][j] = leis.readUShort();
                     size += 2*LittleEndianConsts.SHORT_SIZE;
                 }
             }
-            
+
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -275,27 +339,29 @@ public class HwmfDraw {
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the lower-right corner of the rectangle.
          */
-        int bottomRect;
+        private int bottomRect;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the lower-right corner of the rectangle.
          */
-        int rightRect;
+        private int rightRect;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int topRect;
+        private int topRect;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the upper-left corner of the rectangle.
          */
-        int leftRect;
+        private int leftRect;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.frameRegion;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             bottomRect = leis.readShort();
             rightRect = leis.readShort();
@@ -303,6 +369,11 @@ public class HwmfDraw {
             leftRect = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -313,25 +384,27 @@ public class HwmfDraw {
         /**
          * A ColorRef Object that defines the color value.
          */
-        HwmfColorRef colorRef; 
+        HwmfColorRef colorRef;
 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the point
          * to be set.
          */
-        int y;
+        private int y;
-        
+
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the point
          * to be set.
          */
-        int x;
+        private int x;
-        
+
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setPixel;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             colorRef = new HwmfColorRef();
             int size = colorRef.init(leis);
@@ -339,6 +412,11 @@ public class HwmfDraw {
             x = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE+size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -350,43 +428,45 @@ public class HwmfDraw {
          * A 16-bit signed integer that defines the height, in logical coordinates, of the
          * ellipse used to draw the rounded corners.
          */
-        int height;
+        private int height;
-        
+
         /**
          * A 16-bit signed integer that defines the width, in logical coordinates, of the
          * ellipse used to draw the rounded corners.
          */
-        int width;
+        private int width;
-        
+
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the lower-right corner of the rectangle.
          */
-        int bottomRect;
+        private int bottomRect;
-        
+
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the lower-right corner of the rectangle.
          */
-        int rightRect;
+        private int rightRect;
-        
+
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int topRect;
+        private int topRect;
-        
+
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the upper-left corner of the rectangle.
          */
-        int leftRect;
+        private int leftRect;
-        
+
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.roundRect;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             height = leis.readShort();
             width = leis.readShort();
@@ -396,8 +476,13 @@ public class HwmfDraw {
             leftRect = leis.readShort();
             return 6*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
-    
+
 
 
     /**
@@ -410,47 +495,49 @@ public class HwmfDraw {
          * A 16-bit signed integer that defines the y-coordinate, in logical
          * coordinates, of the endpoint of the second radial.
          */
-        int yRadial2;
+        private int yRadial2;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical
          * coordinates, of the endpoint of the second radial.
          */
-        int xRadial2;
+        private int xRadial2;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical 
+         * A 16-bit signed integer that defines the y-coordinate, in logical
          * coordinates, of the endpoint of the first radial.
          */
-        int yRadial1;
+        private int yRadial1;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical 
+         * A 16-bit signed integer that defines the x-coordinate, in logical
          * coordinates, of the endpoint of the first radial.
          */
-        int xRadial1;  
+        private int xRadial1;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int bottomRect;
+        private int bottomRect;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int rightRect;
+        private int rightRect;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of the 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the bounding rectangle.
          */
-        int topRect;
+        private int topRect;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the upper-left corner of the bounding rectangle.
          */
-        int leftRect;
+        private int leftRect;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.pie;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yRadial2 = leis.readShort();
             xRadial2 = leis.readShort();
@@ -462,6 +549,12 @@ public class HwmfDraw {
             leftRect = leis.readShort();
             return 8*LittleEndianConsts.SHORT_SIZE;
         }
+
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -472,47 +565,49 @@ public class HwmfDraw {
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the ending point of the radial line defining the ending point of the arc.
          */
-        int yEndArc; 
+        private int yEndArc;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the ending point of the radial line defining the ending point of the arc.
          */
-        int xEndArc; 
+        private int xEndArc;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the ending point of the radial line defining the starting point of the arc.
          */
-        int yStartArc;
+        private int yStartArc;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the ending point of the radial line defining the starting point of the arc.
          */
-        int xStartArc;
+        private int xStartArc;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int bottomRect;
+        private int bottomRect;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int rightRect;
+        private int rightRect;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of the 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the bounding rectangle.
          */
-        int topRect;
+        private int topRect;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the upper-left corner of the bounding rectangle.
          */
-        int leftRect;
+        private int leftRect;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.arc;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yEndArc = leis.readShort();
             xEndArc = leis.readShort();
@@ -524,6 +619,11 @@ public class HwmfDraw {
             leftRect = leis.readShort();
             return 8*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -533,51 +633,53 @@ public class HwmfDraw {
      */
     public static class WmfChord implements HwmfRecord {
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical 
+         * A 16-bit signed integer that defines the y-coordinate, in logical
          * coordinates, of the endpoint of the second radial.
          */
-        int yRadial2;
+        private int yRadial2;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical 
+         * A 16-bit signed integer that defines the x-coordinate, in logical
          * coordinates, of the endpoint of the second radial.
          */
-        int xRadial2;
+        private int xRadial2;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical 
+         * A 16-bit signed integer that defines the y-coordinate, in logical
          * coordinates, of the endpoint of the first radial.
          */
-        int yRadial1;
+        private int yRadial1;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical 
+         * A 16-bit signed integer that defines the x-coordinate, in logical
          * coordinates, of the endpoint of the first radial.
          */
-        int xRadial1;
+        private int xRadial1;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int bottomRect;
+        private int bottomRect;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the lower-right corner of the bounding rectangle.
          */
-        int rightRect;
+        private int rightRect;
         /**
-         * A 16-bit signed integer that defines the y-coordinate, in logical units, of the 
+         * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the bounding rectangle.
          */
-        int topRect;
+        private int topRect;
         /**
-         * A 16-bit signed integer that defines the x-coordinate, in logical units, of 
+         * A 16-bit signed integer that defines the x-coordinate, in logical units, of
          * the upper-left corner of the bounding rectangle.
          */
-        int leftRect;
+        private int leftRect;
-        
+
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.chord;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yRadial2 = leis.readShort();
             xRadial2 = leis.readShort();
@@ -589,31 +691,43 @@ public class HwmfDraw {
             leftRect = leis.readShort();
             return 8*LittleEndianConsts.SHORT_SIZE;
         }
-    }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
+}
 
 
     /**
-     * The META_SELECTOBJECT record specifies a graphics object for the playback device context. The 
+     * The META_SELECTOBJECT record specifies a graphics object for the playback device context. The
-     * new object replaces the previous object of the same type, unless if the previous object is a palette 
+     * new object replaces the previous object of the same type, unless if the previous object is a palette
-     * object. If the previous object is a palette object, then the META_SELECTPALETTE record must be 
+     * object. If the previous object is a palette object, then the META_SELECTPALETTE record must be
-     * used instead of the META_SELECTOBJECT record, as the META_SELECTOBJECT record does not 
+     * used instead of the META_SELECTOBJECT record, as the META_SELECTOBJECT record does not
      * support replacing the palette object type.
      */
     public static class WmfSelectObject implements HwmfRecord {
-        
+
         /**
          * A 16-bit unsigned integer used to index into the WMF Object Table to
          * get the object to be selected.
          */
-        int objectIndex;
+        private int objectIndex;
-        
+
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.selectObject;
         }
-        
+
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             objectIndex = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
  }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfEscape.java

@@ -19,6 +19,8 @@ package org.apache.poi.hwmf.record;
 
 import java.io.IOException;
 
+import org.apache.poi.hwmf.draw.HwmfGraphics;
+import org.apache.poi.util.HexDump;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
@@ -28,21 +30,23 @@ public class HwmfEscape implements HwmfRecord {
      * A 16-bit unsigned integer that defines the escape function. The 
      * value MUST be from the MetafileEscapes enumeration.
      */
-    int escapeFunction;
+    private int escapeFunction;
     /**
      * A 16-bit unsigned integer that specifies the size, in bytes, of the 
      * EscapeData field.
      */
-    int byteCount;
+    private int byteCount;
     /**
      * An array of bytes of size ByteCount.
      */
-    byte escapeData[];
+    private byte escapeData[];
     
+    @Override
     public HwmfRecordType getRecordType() {
         return HwmfRecordType.escape;
     }
     
+    @Override
     public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
         escapeFunction = leis.readUShort();
         byteCount = leis.readUShort();
@@ -50,4 +54,16 @@ public class HwmfEscape implements HwmfRecord {
         leis.read(escapeData);
         return 2*LittleEndianConsts.SHORT_SIZE+byteCount;
     }
+
+    @Override
+    public void draw(HwmfGraphics ctx) {
+        
+    }
+    
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("escape - function: "+escapeFunction+"\n");
+        sb.append(HexDump.dump(escapeData, 0, 0));
+        return sb.toString();
+    }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfFill.java

@@ -17,12 +17,26 @@
 
 package org.apache.poi.hwmf.record;
 
+import java.awt.geom.Path2D;
+import java.awt.image.BufferedImage;
+import java.io.File;
 import java.io.IOException;
 
+import javax.imageio.ImageIO;
+
+import org.apache.poi.hwmf.draw.HwmfGraphics;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
 public class HwmfFill {
+    /**
+     * A record which contains an image (to be extracted)
+     */
+    public interface HwmfImageRecord {
+        BufferedImage getImage();
+    }
+    
+    
     /**
      * The META_FILLREGION record fills a region using a specified brush.
      */
@@ -32,23 +46,30 @@ public class HwmfFill {
          * A 16-bit unsigned integer used to index into the WMF Object Table to get
          * the region to be filled.
          */
-        int region;
+        private int region;
 
         /**
          * A 16-bit unsigned integer used to index into the WMF Object Table to get the
          * brush to use for filling the region.
          */
-        int brush;
+        private int brush;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.fillRegion;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             region = leis.readUShort();
             brush = leis.readUShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
     /**
@@ -71,6 +92,11 @@ public class HwmfFill {
             region = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
     
     
@@ -83,23 +109,25 @@ public class HwmfFill {
         /**
          * A 32-bit ColorRef Object that defines the color value.
          */
-        HwmfColorRef colorRef;
+        private HwmfColorRef colorRef;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * point where filling is to start.
          */
-        int yStart;
+        private int yStart;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * point where filling is to start.
          */
-        int xStart;
+        private int xStart;
         
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.floodFill;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             colorRef = new HwmfColorRef();
             int size = colorRef.init(leis);
@@ -107,6 +135,11 @@ public class HwmfFill {
             xStart = leis.readShort();
             return size+2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
     /**
@@ -114,21 +147,57 @@ public class HwmfFill {
      * graphics operations that fill polygons.
      */
     public static class WmfSetPolyfillMode implements HwmfRecord {
+        /**
+         * A 16-bit unsigned integer that defines polygon fill mode.
+         * This MUST be one of the values: ALTERNATE = 0x0001, WINDING = 0x0002
+         */
+        public enum HwmfPolyfillMode {
+            /**
+             * Selects alternate mode (fills the area between odd-numbered and
+             * even-numbered polygon sides on each scan line).
+             */
+            ALTERNATE(0x0001, Path2D.WIND_EVEN_ODD),
+            /**
+             * Selects winding mode (fills any region with a nonzero winding value).
+             */
+            WINDING(0x0002, Path2D.WIND_NON_ZERO);
+
+            public int wmfFlag;
+            public int awtFlag;
+            HwmfPolyfillMode(int wmfFlag, int awtFlag) {
+                this.wmfFlag = wmfFlag;
+                this.awtFlag = awtFlag;
+            }
+
+            static HwmfPolyfillMode valueOf(int wmfFlag) {
+                for (HwmfPolyfillMode pm : values()) {
+                    if (pm.wmfFlag == wmfFlag) return pm;
+                }
+                return null;
+            }
+        }
         
         /**
          * A 16-bit unsigned integer that defines polygon fill mode.
          * This MUST be one of the values: ALTERNATE = 0x0001, WINDING = 0x0002
          */
-        int polyFillMode;
+        private HwmfPolyfillMode polyfillMode;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setPolyFillMode;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            polyFillMode = leis.readUShort();
+            polyfillMode = HwmfPolyfillMode.valueOf(leis.readUShort());
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setPolyfillMode(polyfillMode);
+        }
     }
 
 
@@ -151,29 +220,31 @@ public class HwmfFill {
          * Filling continues outward in all directions as long as the color is encountered.
          * This style is useful for filling areas with multicolored boundaries.
          */
-        int mode;
+        private int mode;
         
         /**
          * A 32-bit ColorRef Object that defines the color value.
          */
-        HwmfColorRef colorRef;
+        private HwmfColorRef colorRef;
         
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the point
          * to be set.
          */
-        int y;
+        private int y;
         
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the point
          * to be set.
          */
-        int x;  
+        private int x;  
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.extFloodFill;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             mode = leis.readUShort();
             colorRef = new HwmfColorRef();
@@ -182,6 +253,11 @@ public class HwmfFill {
             x = leis.readShort();
             return size+3*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
     /**
@@ -193,16 +269,23 @@ public class HwmfFill {
          * A 16-bit unsigned integer used to index into the WMF Object Table to get
          * the region to be inverted.
          */
-        int region;
+        private int region;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.invertRegion;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             region = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
     
 
@@ -217,39 +300,41 @@ public class HwmfFill {
          * A 32-bit unsigned integer that defines the raster operation code.
          * This code MUST be one of the values in the Ternary Raster Operation enumeration table.
          */
-        HwmfTernaryRasterOp rasterOperation;
+        private HwmfTernaryRasterOp rasterOperation;
         
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the rectangle.
          */
-        int height;
+        private int height;
         
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the rectangle.
          */
-        int width;
+        private int width;
         
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the rectangle to be filled.
          */
-        int yLeft;
+        private int yLeft;
         
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * upper-left corner of the rectangle to be filled.
          */
-        int xLeft;
+        private int xLeft;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.patBlt;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            int rasterOpIndex = leis.readUShort();
             int rasterOpCode = leis.readUShort();
+            int rasterOpIndex = leis.readUShort();
 
-            rasterOperation = HwmfTernaryRasterOp.fromOpIndex(rasterOpIndex);
+            rasterOperation = HwmfTernaryRasterOp.valueOf(rasterOpIndex);
             assert(rasterOpCode == rasterOperation.opCode);
             
             height = leis.readShort();
@@ -259,6 +344,11 @@ public class HwmfFill {
 
             return 6*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
     /**
@@ -269,44 +359,44 @@ public class HwmfFill {
          * in the playback device context, and the destination pixels are to be combined to form the new 
          * image. This code MUST be one of the values in the Ternary Raster Operation Enumeration
          */
-        HwmfTernaryRasterOp rasterOperation;
+        private HwmfTernaryRasterOp rasterOperation;
         
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the source rectangle.
          */
-        int srcHeight; 
+        private int srcHeight; 
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the source rectangle.
          */
-        int srcWidth; 
+        private int srcWidth; 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the upper-left corner 
          * of the source rectangle.
          */
-        int ySrc;
+        private int ySrc;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the upper-left corner 
          * of the source rectangle.
          */
-        int xSrc;
+        private int xSrc;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the destination rectangle.
          */
-        int destHeight;
+        private int destHeight;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the destination rectangle.
          */
-        int destWidth;
+        private int destWidth;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the upper-left 
          * corner of the destination rectangle.
          */
-        int yDest;
+        private int yDest;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the upper-left 
          * corner of the destination rectangle.
          */
-        int xDest;
+        private int xDest;
         
         /**
          * A variable-sized Bitmap16 Object that defines source image content.
@@ -314,19 +404,21 @@ public class HwmfFill {
          */
         HwmfBitmap16 target;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.stretchBlt;
         }
         
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             boolean hasBitmap = (recordSize > ((recordFunction >> 8) + 3));
 
             int size = 0;
-            int rasterOpIndex = leis.readUShort();
             int rasterOpCode = leis.readUShort();
+            int rasterOpIndex = leis.readUShort();
             
-            rasterOperation = HwmfTernaryRasterOp.fromOpIndex(rasterOpIndex);
+            rasterOperation = HwmfTernaryRasterOp.valueOf(rasterOpIndex);
             assert(rasterOpCode == rasterOperation.opCode);
 
             srcHeight = leis.readShort();
@@ -351,6 +443,11 @@ public class HwmfFill {
             
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
     /**
@@ -360,13 +457,13 @@ public class HwmfFill {
      * The source of the color data is a DIB, and the destination of the transfer is
      * the current output region in the playback device context.
      */
-    public static class WmfStretchDib implements HwmfRecord {
+    public static class WmfStretchDib implements HwmfRecord, HwmfImageRecord {
         /**
          * A 32-bit unsigned integer that defines how the source pixels, the current brush in
          * the playback device context, and the destination pixels are to be combined to
          * form the new image.
          */
-        HwmfTernaryRasterOp rasterOperation;
+        private HwmfTernaryRasterOp rasterOperation;
 
         /**
          * A 16-bit unsigned integer that defines whether the Colors field of the
@@ -376,63 +473,65 @@ public class HwmfFill {
          * DIB_PAL_COLORS = 0x0001,
          * DIB_PAL_INDICES = 0x0002
          */
-        int colorUsage;
+        private int colorUsage;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the
          * source rectangle.
          */
-        int srcHeight;
+        private int srcHeight;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the
          * source rectangle.
          */
-        int srcWidth; 
+        private int srcWidth; 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * source rectangle.
          */
-        int ySrc;
+        private int ySrc;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the 
          * source rectangle.
          */
-        int xSrc;
+        private int xSrc;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the 
          * destination rectangle.
          */
-        int destHeight;
+        private int destHeight;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the 
          * destination rectangle.
          */
-        int destWidth;
+        private int destWidth;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the 
          * upper-left corner of the destination rectangle.
          */
-        int yDst;
+        private int yDst;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the 
          * upper-left corner of the destination rectangle.
          */
-        int xDst;
+        private int xDst;
         /**
          * A variable-sized DeviceIndependentBitmap Object (section 2.2.2.9) that is the 
          * source of the color data.
          */
-        HwmfBitmapDib dib;
+        private HwmfBitmapDib dib;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.stretchDib;
         }
         
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            int rasterOpIndex = leis.readUShort();
             int rasterOpCode = leis.readUShort();
+            int rasterOpIndex = leis.readUShort();
             
-            rasterOperation = HwmfTernaryRasterOp.fromOpIndex(rasterOpIndex);
+            rasterOperation = HwmfTernaryRasterOp.valueOf(rasterOpIndex);
             assert(rasterOpCode == rasterOperation.opCode);
 
             colorUsage = leis.readUShort();
@@ -447,9 +546,20 @@ public class HwmfFill {
             
             int size = 11*LittleEndianConsts.SHORT_SIZE;
             dib = new HwmfBitmapDib();
-            size += dib.init(leis);
+            size += dib.init(leis, (int)(recordSize-6-size));
+
             return size;
         }        
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
+
+        @Override
+        public BufferedImage getImage() {
+            return dib.getImage();
+        }
     }
     
     public static class WmfBitBlt implements HwmfRecord {
@@ -458,57 +568,59 @@ public class HwmfFill {
          * A 32-bit unsigned integer that defines how the source pixels, the current brush in the playback 
          * device context, and the destination pixels are to be combined to form the new image.
          */
-        HwmfTernaryRasterOp rasterOperation;
+        private HwmfTernaryRasterOp rasterOperation;
         
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the upper-left corner 
         of the source rectangle.
          */
-        int ySrc; 
+        private int ySrc; 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the upper-left corner 
         of the source rectangle.
          */
-        int xSrc; 
+        private int xSrc; 
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the source and 
         destination rectangles.
          */
-        int height;
+        private int height;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the source and destination 
         rectangles.
          */
-        int width;
+        private int width;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the upper-left 
         corner of the destination rectangle.
          */
-        int yDest;
+        private int yDest;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the upper-left 
         corner of the destination rectangle.
          */
-        int xDest;
+        private int xDest;
         
         /**
          * A variable-sized Bitmap16 Object that defines source image content.
          * This object MUST be specified, even if the raster operation does not require a source.
          */
-        HwmfBitmap16 target;
+        private HwmfBitmap16 target;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.bitBlt;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             boolean hasBitmap = (recordSize > ((recordFunction >> 8) + 3));
 
             int size = 0;
-            int rasterOpIndex = leis.readUShort();
             int rasterOpCode = leis.readUShort();
+            int rasterOpIndex = leis.readUShort();
             
-            rasterOperation = HwmfTernaryRasterOp.fromOpIndex(rasterOpIndex);
+            rasterOperation = HwmfTernaryRasterOp.valueOf(rasterOpIndex);
             assert(rasterOpCode == rasterOperation.opCode);
 
             ySrc = leis.readShort();
@@ -535,6 +647,11 @@ public class HwmfFill {
             
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
     }
 
 
@@ -543,7 +660,7 @@ public class HwmfFill {
      * using deviceindependent color data.
      * The source of the color data is a DIB
      */
-    public static class WmfSetDibToDev implements HwmfRecord {
+    public static class WmfSetDibToDev implements HwmfRecord, HwmfImageRecord {
 
         /**
          * A 16-bit unsigned integer that defines whether the Colors field of the
@@ -553,55 +670,57 @@ public class HwmfFill {
          * DIB_PAL_COLORS = 0x0001,
          * DIB_PAL_INDICES = 0x0002
          */
-        int colorUsage;  
+        private int colorUsage;  
         /**
          * A 16-bit unsigned integer that defines the number of scan lines in the source.
          */
-        int scanCount;
+        private int scanCount;
         /**
          * A 16-bit unsigned integer that defines the starting scan line in the source.
          */
-        int startScan;  
+        private int startScan;  
         /**
          * A 16-bit unsigned integer that defines the y-coordinate, in logical units, of the
          * source rectangle.
          */
-        int yDib;  
+        private int yDib;  
         /**
          * A 16-bit unsigned integer that defines the x-coordinate, in logical units, of the
          * source rectangle.
          */
-        int xDib;  
+        private int xDib;  
         /**
          * A 16-bit unsigned integer that defines the height, in logical units, of the
          * source and destination rectangles.
          */
-        int height;
+        private int height;
         /**
          * A 16-bit unsigned integer that defines the width, in logical units, of the
          * source and destination rectangles.
          */
-        int width;
+        private int width;
         /**
          * A 16-bit unsigned integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the destination rectangle.
          */
-        int yDest;
+        private int yDest;
         /**
          * A 16-bit unsigned integer that defines the x-coordinate, in logical units, of the
          * upper-left corner of the destination rectangle.
          */
-        int xDest;
+        private int xDest;
         /**
          * A variable-sized DeviceIndependentBitmap Object that is the source of the color data.
          */
-        HwmfBitmapDib dib;        
+        private HwmfBitmapDib dib;        
         
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setDibToDev;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             colorUsage = leis.readUShort();
             scanCount = leis.readUShort();
@@ -615,14 +734,24 @@ public class HwmfFill {
             
             int size = 9*LittleEndianConsts.SHORT_SIZE;
             dib = new HwmfBitmapDib();
-            size += dib.init(leis);
+            size += dib.init(leis, (int)(recordSize-6-size));
             
             return size;
         }        
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
+
+        @Override
+        public BufferedImage getImage() {
+            return dib.getImage();
+        }
     }
 
 
-    public static class WmfDibBitBlt implements HwmfRecord {
+    public static class WmfDibBitBlt implements HwmfRecord, HwmfImageRecord {
 
         /**
          * A 32-bit unsigned integer that defines how the source pixels, the current brush
@@ -633,51 +762,53 @@ public class HwmfFill {
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the source rectangle.
          */
-        int ySrc;
+        private int ySrc;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the source rectangle.
          */
-        int xSrc;
+        private int xSrc;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the source and 
          * destination rectangles.
          */
-        int height;
+        private int height;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the source and destination
          * rectangles.
          */
-        int width;
+        private int width;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the upper-left
          * corner of the destination rectangle.
          */
-        int yDest;
+        private int yDest;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the upper-left 
          * corner of the destination rectangle.
          */
-        int xDest;
+        private int xDest;
         
         /**
          * A variable-sized DeviceIndependentBitmap Object that defines image content.
          * This object MUST be specified, even if the raster operation does not require a source.
          */
-        HwmfBitmapDib target;
+        private HwmfBitmapDib target;
         
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.dibBitBlt;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             boolean hasBitmap = (recordSize > ((recordFunction >> 8) + 3));
 
             int size = 0;
-            int rasterOpIndex = leis.readUShort();
             int rasterOpCode = leis.readUShort();
+            int rasterOpIndex = leis.readUShort();
             
-            rasterOperation = HwmfTernaryRasterOp.fromOpIndex(rasterOpIndex);
+            rasterOperation = HwmfTernaryRasterOp.valueOf(rasterOpIndex);
             assert(rasterOpCode == rasterOperation.opCode);
 
             ySrc = leis.readShort();
@@ -696,76 +827,88 @@ public class HwmfFill {
             size += 4*LittleEndianConsts.SHORT_SIZE;
             if (hasBitmap) {
                 target = new HwmfBitmapDib();
-                size += target.init(leis);
+                size += target.init(leis, (int)(recordSize-6-size));
             }
             
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
+
+        @Override
+        public BufferedImage getImage() {
+            return target.getImage();
+        }
     }
 
-    public static class WmfDibStretchBlt implements HwmfRecord {
+    public static class WmfDibStretchBlt implements HwmfRecord, HwmfImageRecord {
         /**
          * A 32-bit unsigned integer that defines how the source pixels, the current brush
          * in the playback device context, and the destination pixels are to be combined to form the
          * new image. This code MUST be one of the values in the Ternary Raster Operation Enumeration.
          */
-        HwmfTernaryRasterOp rasterOperation;
+        private HwmfTernaryRasterOp rasterOperation;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the source rectangle.
          */
-        int srcHeight;
+        private int srcHeight;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the source rectangle.
          */
-        int srcWidth;
+        private int srcWidth;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the source rectangle.
          */
-        int ySrc;
+        private int ySrc;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * upper-left corner of the source rectangle.
          */
-        int xSrc;
+        private int xSrc;
         /**
          * A 16-bit signed integer that defines the height, in logical units, of the
          * destination rectangle.
          */
-        int destHeight;
+        private int destHeight;
         /**
          * A 16-bit signed integer that defines the width, in logical units, of the
          * destination rectangle.
          */
-        int destWidth;
+        private int destWidth;
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units,
          * of the upper-left corner of the destination rectangle.
          */
-        int yDest;
+        private int yDest;
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units,
          * of the upper-left corner of the destination rectangle.
          */
-        int xDest;
+        private int xDest;
         /**
          * A variable-sized DeviceIndependentBitmap Object that defines image content.
          * This object MUST be specified, even if the raster operation does not require a source.
          */
         HwmfBitmapDib target;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.dibStretchBlt;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             boolean hasBitmap = (recordSize > ((recordFunction >> 8) + 3));
 
             int size = 0;
-            int rasterOpIndex = leis.readUShort();
             int rasterOpCode = leis.readUShort();
+            int rasterOpIndex = leis.readUShort();
             
-            rasterOperation = HwmfTernaryRasterOp.fromOpIndex(rasterOpIndex);
+            rasterOperation = HwmfTernaryRasterOp.valueOf(rasterOpIndex);
             assert(rasterOpCode == rasterOperation.opCode);
 
             srcHeight = leis.readShort();
@@ -785,10 +928,20 @@ public class HwmfFill {
             size += 4*LittleEndianConsts.SHORT_SIZE;
             if (hasBitmap) {
                 target = new HwmfBitmapDib();
-                size += target.init(leis);
+                size += target.init(leis, (int)(recordSize-6-size));
             }
             
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            
+        }
+
+        @Override
+        public BufferedImage getImage() {
+            return target.getImage();
+        }
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfFont.java

@@ -20,6 +20,7 @@ package org.apache.poi.hwmf.record;
 import java.io.IOException;
 import java.nio.charset.Charset;
 
+import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
 /**
@@ -440,7 +441,7 @@ public class HwmfFont {
      *
      * @see WmfClipPrecision
      */
-    int clipPrecision;
+    WmfClipPrecision clipPrecision;
 
     /**
      * An 8-bit unsigned integer that defines the output quality.
@@ -477,22 +478,23 @@ public class HwmfFont {
         strikeOut = leis.readByte() != 0;
         charSet = WmfCharset.valueOf(leis.readUByte());
         outPrecision = WmfOutPrecision.valueOf(leis.readUByte());
+        clipPrecision = WmfClipPrecision.valueOf(leis.readUByte());
         quality = WmfFontQuality.valueOf(leis.readUByte());
         int pitchAndFamily = leis.readUByte();
         family = WmfFontFamilyClass.valueOf(pitchAndFamily & 0xF);
         pitch = WmfFontPitch.valueOf((pitchAndFamily >>> 6) & 3);
         
-        byte buf[] = new byte[32], readBytes;
+        byte buf[] = new byte[32], b, readBytes = 0;
-        for (readBytes = 0; readBytes < 32; readBytes++) {
+        do {
-            if ((buf[readBytes] = leis.readByte()) == 0) {
+            if (readBytes == 32) {
-                break;
+                throw new IOException("Font facename can't be determined.");
             }
-        }
+
-        if (readBytes == 1 || readBytes == 32) {
+            buf[readBytes++] = b = leis.readByte();
-            throw new IOException("Font facename can't be determined.");
+        } while (b != 0 && b != -1 && readBytes <= 32);
-        }
+        
         facename = new String(buf, 0, readBytes-1, Charset.forName("ISO-8859-1"));
         
-        return 17+readBytes;
+        return 5*LittleEndianConsts.SHORT_SIZE+8*LittleEndianConsts.BYTE_SIZE+readBytes;
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfHatchStyle.java

@@ -21,17 +21,17 @@ package org.apache.poi.hwmf.record;
  * The HatchStyle Enumeration specifies the hatch pattern.
  */
 public enum HwmfHatchStyle {
-    /** A horizontal hatch */
+    /** ----- - A horizontal hatch */
     HS_HORIZONTAL(0x0000),
-    /** A vertical hatch */
+    /** ||||| - A vertical hatch */
     HS_VERTICAL(0x0001),
-    /** A 45-degree downward, left-to-right hatch. */
+    /** \\\\\ - A 45-degree downward, left-to-right hatch. */
     HS_FDIAGONAL(0x0002),
-    /** A 45-degree upward, left-to-right hatch. */
+    /** ///// - A 45-degree upward, left-to-right hatch. */
     HS_BDIAGONAL(0x0003),
-    /** A horizontal and vertical cross-hatch. */
+    /** +++++ - A horizontal and vertical cross-hatch. */
     HS_CROSS(0x0004),
-    /** A 45-degree crosshatch. */
+    /** xxxxx - A 45-degree crosshatch. */
     HS_DIAGCROSS(0x0005);
 
     int flag;

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfMapMode.java

@@ -0,0 +1,114 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+
+package org.apache.poi.hwmf.record;
+
+/**
+ * A 16-bit unsigned integer that defines the mapping mode.
+ *
+ * The MapMode defines how logical units are mapped to physical units;
+ * that is, assuming that the origins in both the logical and physical coordinate systems
+ * are at the same point on the drawing surface, what is the physical coordinate (x',y')
+ * that corresponds to logical coordinate (x,y).
+ *
+ * For example, suppose the mapping mode is MM_TEXT. Given the following definition of that
+ * mapping mode, and an origin (0,0) at the top left corner of the drawing surface, logical
+ * coordinate (4,5) would map to physical coordinate (4,5) in pixels.
+ *
+ * Now suppose the mapping mode is MM_LOENGLISH, with the same origin as the previous
+ * example. Given the following definition of that mapping mode, logical coordinate (4,-5)
+ * would map to physical coordinate (0.04,0.05) in inches.
+ */
+public enum HwmfMapMode {
+    /**
+     *  Each logical unit is mapped to one device pixel.
+     *  Positive x is to the right; positive y is down.
+     */
+    MM_TEXT(0x0001, 0),
+    
+    /**
+     *  Each logical unit is mapped to 0.1 millimeter.
+     *  Positive x is to the right; positive y is up.
+     */
+    MM_LOMETRIC(0x0002, 254),
+    
+    /**
+     *  Each logical unit is mapped to 0.01 millimeter.
+     *  Positive x is to the right; positive y is up.
+     */
+    MM_HIMETRIC(0x0003, 2540),
+    
+    /**
+     *  Each logical unit is mapped to 0.01 inch.
+     *  Positive x is to the right; positive y is up.
+     */
+    MM_LOENGLISH(0x0004, 100),
+    
+    /**
+     *  Each logical unit is mapped to 0.001 inch.
+     *  Positive x is to the right; positive y is up.
+     */
+    MM_HIENGLISH(0x0005, 1000),
+    
+    /**
+     *  Each logical unit is mapped to one twentieth (1/20) of a point.
+     *  In printing, a point is 1/72 of an inch; therefore, 1/20 of a point is 1/1440 of an inch.
+     *  This unit is also known as a "twip".
+     *  Positive x is to the right; positive y is up.
+     */
+    MM_TWIPS(0x0006, 1440),
+    
+    /**
+     *  Logical units are mapped to arbitrary device units with equally scaled axes;
+     *  that is, one unit along the x-axis is equal to one unit along the y-axis.
+     *  The META_SETWINDOWEXT and META_SETVIEWPORTEXT records specify the units and the
+     *  orientation of the axes.
+     *  The processing application SHOULD make adjustments as necessary to ensure the x and y
+     *  units remain the same size. For example, when the window extent is set, the viewport
+     *  SHOULD be adjusted to keep the units isotropic.
+     */
+    MM_ISOTROPIC(0x0007, -1),
+    
+    /**
+     *  Logical units are mapped to arbitrary units with arbitrarily scaled axes.
+     */
+    MM_ANISOTROPIC(0x0008, -1);
+    
+    /**
+     * native flag
+     */
+    public final int flag;
+    
+    /**
+     * transformation units - usually scale relative to current dpi.
+     * when scale == 0, then don't scale
+     * when scale == -1, then scale relative to window dimension. 
+     */
+    public final int scale;
+    
+    HwmfMapMode(int flag, int scale) {
+        this.flag = flag;
+        this.scale = scale;
+    }
+
+    static HwmfMapMode valueOf(int flag) {
+        for (HwmfMapMode mm : values()) {
+            if (mm.flag == flag) return mm;
+        }
+        return null;
+    }        
+}

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfMisc.java

@@ -17,8 +17,12 @@
 
 package org.apache.poi.hwmf.record;
 
+import java.awt.image.BufferedImage;
 import java.io.IOException;
 
+import org.apache.poi.hwmf.draw.HwmfDrawProperties;
+import org.apache.poi.hwmf.draw.HwmfGraphics;
+import org.apache.poi.hwmf.record.HwmfFill.HwmfImageRecord;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
@@ -28,22 +32,38 @@ public class HwmfMisc {
      * The META_SAVEDC record saves the playback device context for later retrieval.
      */
     public static class WmfSaveDc implements HwmfRecord {
-        public HwmfRecordType getRecordType() { return HwmfRecordType.saveDc; }
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.saveDc;
+        }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             return 0;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
      * The META_SETRELABS record is reserved and not supported.
      */
     public static class WmfSetRelabs implements HwmfRecord {
-        public HwmfRecordType getRecordType() { return HwmfRecordType.setRelabs; }
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.setRelabs;
+        }
 
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             return 0;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -57,16 +77,23 @@ public class HwmfMisc {
          * member is positive, nSavedDC represents a specific instance of the state to be restored. If
          * this member is negative, nSavedDC represents an instance relative to the current state.
          */
-        int nSavedDC;
+        private int nSavedDC;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.restoreDc;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             nSavedDC = leis.readShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -75,16 +102,23 @@ public class HwmfMisc {
      */
     public static class WmfSetBkColor implements HwmfRecord {
 
-        HwmfColorRef colorRef;
+        private HwmfColorRef colorRef;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setBkColor;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             colorRef = new HwmfColorRef();
             return colorRef.init(leis);
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setBackgroundColor(colorRef);
+        }
     }
 
     /**
@@ -96,18 +130,38 @@ public class HwmfMisc {
 
         /**
          * A 16-bit unsigned integer that defines background mix mode.
-         * This MUST be either TRANSPARENT = 0x0001 or OPAQUE = 0x0002
          */
-        int bkMode;
+        public enum HwmfBkMode {
+            TRANSPARENT(0x0001), OPAQUE(0x0002);
+
+            int flag;
+            HwmfBkMode(int flag) {
+                this.flag = flag;
+            }
+
+            static HwmfBkMode valueOf(int flag) {
+                for (HwmfBkMode bs : values()) {
+                    if (bs.flag == flag) return bs;
+                }
+                return null;
+            }
+        }
+
+        private HwmfBkMode bkMode;
 
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setBkMode;
         }
 
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            bkMode = leis.readUShort();
+            bkMode = HwmfBkMode.valueOf(leis.readUShort());
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setBkMode(bkMode);
+        }
     }
 
     /**
@@ -122,19 +176,26 @@ public class HwmfMisc {
          * LAYOUT_RTL = 0x0001
          * LAYOUT_BITMAPORIENTATIONPRESERVED = 0x0008
          */
-        int layout;
+        private int layout;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setLayout;
         }
 
         @SuppressWarnings("unused")
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             layout = leis.readUShort();
             // A 16-bit field that MUST be ignored.
             int reserved = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -144,72 +205,23 @@ public class HwmfMisc {
      */
     public static class WmfSetMapMode implements HwmfRecord {
 
-        /**
+        private HwmfMapMode mapMode;
-         * A 16-bit unsigned integer that defines the mapping mode.
-         *
-         * The MapMode defines how logical units are mapped to physical units;
-         * that is, assuming that the origins in both the logical and physical coordinate systems
-         * are at the same point on the drawing surface, what is the physical coordinate (x',y')
-         * that corresponds to logical coordinate (x,y).
-         *
-         * For example, suppose the mapping mode is MM_TEXT. Given the following definition of that
-         * mapping mode, and an origin (0,0) at the top left corner of the drawing surface, logical
-         * coordinate (4,5) would map to physical coordinate (4,5) in pixels.
-         *
-         * Now suppose the mapping mode is MM_LOENGLISH, with the same origin as the previous
-         * example. Given the following definition of that mapping mode, logical coordinate (4,-5)
-         * would map to physical coordinate (0.04,0.05) in inches.
-         *
-         * This MUST be one of the following:
-         *
-         * MM_TEXT (= 0x0001):
-         *  Each logical unit is mapped to one device pixel.
-         *  Positive x is to the right; positive y is down.
-         *
-         * MM_LOMETRIC (= 0x0002):
-         *  Each logical unit is mapped to 0.1 millimeter.
-         *  Positive x is to the right; positive y is up.
-         *
-         * MM_HIMETRIC (= 0x0003):
-         *  Each logical unit is mapped to 0.01 millimeter.
-         *  Positive x is to the right; positive y is up.
-         *
-         * MM_LOENGLISH (= 0x0004):
-         *  Each logical unit is mapped to 0.01 inch.
-         *  Positive x is to the right; positive y is up.
-         *
-         * MM_HIENGLISH (= 0x0005):
-         *  Each logical unit is mapped to 0.001 inch.
-         *  Positive x is to the right; positive y is up.
-         *
-         * MM_TWIPS (= 0x0006):
-         *  Each logical unit is mapped to one twentieth (1/20) of a point.
-         *  In printing, a point is 1/72 of an inch; therefore, 1/20 of a point is 1/1440 of an inch.
-         *  This unit is also known as a "twip".
-         *  Positive x is to the right; positive y is up.
-         *
-         * MM_ISOTROPIC (= 0x0007):
-         *  Logical units are mapped to arbitrary device units with equally scaled axes;
-         *  that is, one unit along the x-axis is equal to one unit along the y-axis.
-         *  The META_SETWINDOWEXT and META_SETVIEWPORTEXT records specify the units and the
-         *  orientation of the axes.
-         *  The processing application SHOULD make adjustments as necessary to ensure the x and y
-         *  units remain the same size. For example, when the window extent is set, the viewport
-         *  SHOULD be adjusted to keep the units isotropic.
-         *
-         * MM_ANISOTROPIC (= 0x0008):
-         *  Logical units are mapped to arbitrary units with arbitrarily scaled axes.
-         */
-        int mapMode;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setMapMode;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            mapMode = leis.readUShort();
+            mapMode = HwmfMapMode.valueOf(leis.readUShort());
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setMapMode(mapMode);
+        }
     }
 
     /**
@@ -223,16 +235,23 @@ public class HwmfMisc {
          * match a font's aspect ratio to the current device's aspect ratio. If bit 0 is
          * set, the mapper selects only matching fonts.
          */
-        long mapperValues;
+        private long mapperValues;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setMapperFlags;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             mapperValues = leis.readUInt();
             return LittleEndianConsts.INT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -262,16 +281,23 @@ public class HwmfMisc {
          * R2_MERGEPEN = 0x000F,
          * R2_WHITE = 0x0010
          */
-        int drawMode;
+        private int drawMode;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setRop2;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             drawMode = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -288,25 +314,32 @@ public class HwmfMisc {
          * COLORONCOLOR = 0x0003,
          * HALFTONE = 0x0004
          */
-        int setStretchBltMode;
+        private int setStretchBltMode;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setStretchBltMode;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             setStretchBltMode = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
      * The META_DIBCREATEPATTERNBRUSH record creates a Brush Object with a
      * pattern specified by a DeviceIndependentBitmap (DIB) Object
      */
-    public static class WmfDibCreatePatternBrush implements HwmfRecord {
+    public static class WmfDibCreatePatternBrush implements HwmfRecord, HwmfImageRecord {
 
-        HwmfBrushStyle style;
+        private HwmfBrushStyle style;
 
         /**
          * A 16-bit unsigned integer that defines whether the Colors field of a DIB
@@ -320,15 +353,17 @@ public class HwmfMisc {
          * DIB_PAL_COLORS = 0x0001,
          * DIB_PAL_INDICES = 0x0002
          */
-        int colorUsage;
+        private int colorUsage;
 
-        HwmfBitmapDib patternDib;
+        private HwmfBitmapDib patternDib;
-        HwmfBitmap16 pattern16;
+        private HwmfBitmap16 pattern16;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.dibCreatePatternBrush;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             style = HwmfBrushStyle.valueOf(leis.readUShort());
             colorUsage = leis.readUShort();
@@ -339,12 +374,9 @@ public class HwmfMisc {
             case BS_DIBPATTERN:
             case BS_DIBPATTERNPT:
             case BS_HATCHED:
-                patternDib = new HwmfBitmapDib();
-                size += patternDib.init(leis);
-                break;
             case BS_PATTERN:
-                pattern16 = new HwmfBitmap16();
+                patternDib = new HwmfBitmapDib();
-                size += pattern16.init(leis);
+                size += patternDib.init(leis, (int)(recordSize-6-size));
                 break;
             case BS_INDEXED:
             case BS_DIBPATTERN8X8:
@@ -354,6 +386,24 @@ public class HwmfMisc {
             }
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            HwmfDrawProperties prop = ctx.getProperties();
+            prop.setBrushStyle(style);
+            prop.setBrushBitmap(getImage());
+        }
+
+        @Override
+        public BufferedImage getImage() {
+            if (patternDib != null) {
+                return patternDib.getImage();
+            } else if (pattern16 != null) {
+                return pattern16.getImage();
+            } else {
+                return null;
+            }
+        }
     }
 
     /**
@@ -364,84 +414,94 @@ public class HwmfMisc {
     public static class WmfDeleteObject implements HwmfRecord {
         /**
          * A 16-bit unsigned integer used to index into the WMF Object Table to
-        get the object to be deleted.
+         * get the object to be deleted.
          */
-        int objectIndex;
+        private int objectIndex;
 
-        public HwmfRecordType getRecordType() { return HwmfRecordType.deleteObject; }
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.deleteObject;
+        }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             objectIndex = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     public static class WmfCreatePatternBrush implements HwmfRecord {
 
-        HwmfBitmap16 pattern;
+        private HwmfBitmap16 pattern;
 
-        public HwmfRecordType getRecordType() { return HwmfRecordType.createPatternBrush; }
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.createPatternBrush;
+        }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             pattern = new HwmfBitmap16(true);
             return pattern.init(leis);
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     public static class WmfCreatePenIndirect implements HwmfRecord {
 
-        /**
+        private HwmfPenStyle penStyle;
-         * A 16-bit unsigned integer that specifies the pen style.
-         * The value MUST be defined from the PenStyle Enumeration table.
-         *
-         * PS_COSMETIC = 0x0000,
-         * PS_ENDCAP_ROUND = 0x0000,
-         * PS_JOIN_ROUND = 0x0000,
-         * PS_SOLID = 0x0000,
-         * PS_DASH = 0x0001,
-         * PS_DOT = 0x0002,
-         * PS_DASHDOT = 0x0003,
-         * PS_DASHDOTDOT = 0x0004,
-         * PS_NULL = 0x0005,
-         * PS_INSIDEFRAME = 0x0006,
-         * PS_USERSTYLE = 0x0007,
-         * PS_ALTERNATE = 0x0008,
-         * PS_ENDCAP_SQUARE = 0x0100,
-         * PS_ENDCAP_FLAT = 0x0200,
-         * PS_JOIN_BEVEL = 0x1000,
-         * PS_JOIN_MITER = 0x2000
-         */
-        int penStyle;
         /**
          * A 32-bit PointS Object that specifies a point for the object dimensions.
          * The xcoordinate is the pen width. The y-coordinate is ignored.
          */
-        int xWidth, yWidth;
+        private int xWidth;
+        @SuppressWarnings("unused")
+        private int yWidth;
         /**
          * A 32-bit ColorRef Object that specifies the pen color value.
          */
-        HwmfColorRef colorRef;
+        private HwmfColorRef colorRef;
 
-        public HwmfRecordType getRecordType() { return HwmfRecordType.createPenIndirect; }
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.createPenIndirect;
+        }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            penStyle = leis.readUShort();
+            penStyle = HwmfPenStyle.valueOf(leis.readUShort());
             xWidth = leis.readShort();
             yWidth = leis.readShort();
             colorRef = new HwmfColorRef();
-            int size = 3*LittleEndianConsts.SHORT_SIZE;
+            int size = colorRef.init(leis);
-            size += colorRef.init(leis);
+            return size+3*LittleEndianConsts.SHORT_SIZE;
-            return size;
+        }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            HwmfDrawProperties p = ctx.getProperties();
+            p.setPenStyle(penStyle);
+            p.setPenColor(colorRef);
+            p.setPenWidth(xWidth);
         }
     }
 
     /**
      * The META_CREATEBRUSHINDIRECT record creates a Brush Object
      * from a LogBrush Object.
-     * 
+     *
      * The following table shows the relationship between values in the BrushStyle,
      * ColorRef and BrushHatch fields in a LogBrush Object. Only supported brush styles are listed.
-     * 
+     *
      * <table>
      * <tr>
      *   <th>BrushStyle</th>
@@ -481,26 +541,37 @@ public class HwmfMisc {
      * </table>
      */
     public static class WmfCreateBrushIndirect implements HwmfRecord {
-        HwmfBrushStyle brushStyle;
+        private HwmfBrushStyle brushStyle;
 
-        HwmfColorRef colorRef;
+        private HwmfColorRef colorRef;
 
         /**
          * A 16-bit field that specifies the brush hatch type.
          * Its interpretation depends on the value of BrushStyle.
-         * 
+         *
          */
-        HwmfHatchStyle brushHatch;
+        private HwmfHatchStyle brushHatch;
 
-        public HwmfRecordType getRecordType() { return HwmfRecordType.createBrushIndirect; }
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.createBrushIndirect;
+        }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             brushStyle = HwmfBrushStyle.valueOf(leis.readUShort());
             colorRef = new HwmfColorRef();
             int size = colorRef.init(leis);
             brushHatch = HwmfHatchStyle.valueOf(leis.readUShort());
-            size += 4;
+            return size+2*LittleEndianConsts.SHORT_SIZE;
-            return size;
+        }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            HwmfDrawProperties p = ctx.getProperties();
+            p.setBrushStyle(brushStyle);
+            p.setBrushColor(colorRef);
+            p.setBrushHatch(brushHatch);
         }
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfPalette.java

@@ -19,6 +19,7 @@ package org.apache.poi.hwmf.record;
 
 import java.io.IOException;
 
+import org.apache.poi.hwmf.draw.HwmfGraphics;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
@@ -30,7 +31,7 @@ public class HwmfPalette {
         // Blue (1 byte): An 8-bit unsigned integer that defines the blue intensity value for the palette entry.
         // Green (1 byte): An 8-bit unsigned integer that defines the green intensity value for the palette entry.
         // Red (1 byte): An 8-bit unsigned integer that defines the red intensity value for the palette entry.
-        int values, blue, green, red;
+        private int values, blue, green, red;
         
         public int init(LittleEndianInputStream leis) throws IOException {
             values = leis.readUByte();
@@ -48,16 +49,17 @@ public class HwmfPalette {
          * used with the META_SETPALENTRIES and META_ANIMATEPALETTE record types.
          * When used with META_CREATEPALETTE, it MUST be 0x0300
          */
-        int start;
+        private int start;
         
         /**
          * NumberOfEntries (2 bytes):  A 16-bit unsigned integer that defines the number of objects in
          * aPaletteEntries.  
          */
-        int numberOfEntries;
+        private int numberOfEntries;
         
         PaletteEntry entries[];
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             start = leis.readUShort();
             numberOfEntries = leis.readUShort();
@@ -69,15 +71,26 @@ public class HwmfPalette {
             }
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     /**
      * The META_CREATEPALETTE record creates a Palette Object
      */
     public static class WmfCreatePalette extends WmfPaletteParent {
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.createPalette;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -85,9 +98,15 @@ public class HwmfPalette {
      * palette that is defined in the playback device context.
      */
     public static class WmfSetPaletteEntries extends WmfPaletteParent {
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setPalEntries;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     /**
@@ -101,14 +120,21 @@ public class HwmfPalette {
          */
         int numberOfEntries;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.resizePalette;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             numberOfEntries = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }        
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -119,16 +145,23 @@ public class HwmfPalette {
          * A 16-bit unsigned integer used to index into the WMF Object Table to get
          * the Palette Object to be selected.
          */
-        int palette;
+        private int palette;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.selectPalette;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             palette = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }        
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -136,11 +169,20 @@ public class HwmfPalette {
      * is defined in the playback device context to the system palette.
      */
     public static class WmfRealizePalette implements HwmfRecord {
-        public HwmfRecordType getRecordType() { return HwmfRecordType.realizePalette; }
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.realizePalette;
+        }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             return 0;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -156,8 +198,14 @@ public class HwmfPalette {
      * this record SHOULD have no effect.
      */
     public static class WmfAnimatePalette extends WmfPaletteParent {
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.animatePalette;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfPenStyle.java

@@ -0,0 +1,171 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+
+package org.apache.poi.hwmf.record;
+
+import java.awt.BasicStroke;
+
+import org.apache.poi.util.BitField;
+import org.apache.poi.util.BitFieldFactory;
+
+/**
+ * The 16-bit PenStyle Enumeration is used to specify different types of pens
+ * that can be used in graphics operations.
+ * 
+ * Various styles can be combined by using a logical OR statement, one from
+ * each subsection of Style, EndCap, Join, and Type (Cosmetic).
+ * 
+ * The defaults in case the other values of the subsection aren't set are
+ * solid, round end caps, round joins and cosmetic type.
+ */
+public class HwmfPenStyle {
+    public enum HwmfLineCap {
+        /** Rounded ends */
+        ROUND(0, BasicStroke.CAP_ROUND),
+        /** Square protrudes by half line width */
+        SQUARE(1, BasicStroke.CAP_SQUARE),
+        /** Line ends at end point*/
+        FLAT(2, BasicStroke.CAP_BUTT);        
+
+        public int wmfFlag;
+        public int awtFlag;
+        HwmfLineCap(int wmfFlag, int awtFlag) {
+            this.wmfFlag = wmfFlag;
+            this.awtFlag = awtFlag;
+        }
+
+        static HwmfLineCap valueOf(int wmfFlag) {
+            for (HwmfLineCap hs : values()) {
+                if (hs.wmfFlag == wmfFlag) return hs;
+            }
+            return null;
+        }    
+    }
+    
+    public enum HwmfLineJoin {
+        /**Line joins are round. */
+        ROUND(0, BasicStroke.JOIN_ROUND),
+        /** Line joins are beveled. */
+        BEVEL(1, BasicStroke.JOIN_BEVEL),
+        /**
+         * Line joins are mitered when they are within the current limit set by the
+         * SETMITERLIMIT META_ESCAPE record. A join is beveled when it would exceed the limit
+         */
+        MITER(2, BasicStroke.JOIN_MITER);
+
+        public int wmfFlag;
+        public int awtFlag;
+        HwmfLineJoin(int wmfFlag, int awtFlag) {
+            this.wmfFlag = wmfFlag;
+            this.awtFlag = awtFlag;
+        }
+
+        static HwmfLineJoin valueOf(int wmfFlag) {
+            for (HwmfLineJoin hs : values()) {
+                if (hs.wmfFlag == wmfFlag) return hs;
+            }
+            return null;
+        }    
+    }
+    
+    public enum HwmfLineDash {
+        /**
+         * The pen is solid.
+         */
+        SOLID(0x0000, 10),
+        /**
+         * The pen is dashed. (-----) 
+         */
+        DASH(0x0001, 10, 8),
+        /**
+         * The pen is dotted. (.....)
+         */
+        DOT(0x0002, 2, 4),
+        /**
+         * The pen has alternating dashes and dots. (_._._._)
+         */
+        DASHDOT(0x0003, 10, 8, 2, 8),
+        /**
+         * The pen has dashes and double dots. (_.._.._)
+         */
+        DASHDOTDOT(0x0004, 10, 4, 2, 4, 2, 4),
+        /**
+         * The pen is invisible.
+         */
+        NULL(0x0005),
+        /**
+         * The pen is solid. When this pen is used in any drawing record that takes a
+         * bounding rectangle, the dimensions of the figure are shrunk so that it fits
+         * entirely in the bounding rectangle, taking into account the width of the pen.
+         */
+        INSIDEFRAME(0x0006, 10),
+        /**
+         * The pen uses a styling array supplied by the user.
+         * (this is currently not supported and drawn as solid ... no idea where the user
+         * styling is supposed to come from ...)
+         */
+        USERSTYLE(0x0007, 10);
+        
+
+        public int wmfFlag;
+        public float[] dashes;
+        HwmfLineDash(int wmfFlag, float... dashes) {
+            this.wmfFlag = wmfFlag;
+            this.dashes = dashes;
+        }
+
+        static HwmfLineDash valueOf(int wmfFlag) {
+            for (HwmfLineDash hs : values()) {
+                if (hs.wmfFlag == wmfFlag) return hs;
+            }
+            return null;
+        }    
+    }
+    
+    private static final BitField SUBSECTION_DASH      = BitFieldFactory.getInstance(0x0007);
+    private static final BitField SUBSECTION_ALTERNATE = BitFieldFactory.getInstance(0x0008);
+    private static final BitField SUBSECTION_ENDCAP    = BitFieldFactory.getInstance(0x0300);
+    private static final BitField SUBSECTION_JOIN      = BitFieldFactory.getInstance(0x3000);
+    
+    private int flag;
+    
+    public static HwmfPenStyle valueOf(int flag) {
+        HwmfPenStyle ps = new HwmfPenStyle();
+        ps.flag = flag;
+        return ps;
+    }
+    
+    public HwmfLineCap getLineCap() {
+        return HwmfLineCap.valueOf(SUBSECTION_ENDCAP.getValue(flag));
+    }
+
+    public HwmfLineJoin getLineJoin() {
+        return HwmfLineJoin.valueOf(SUBSECTION_JOIN.getValue(flag));
+    }
+    
+    public HwmfLineDash getLineDash() {
+        return HwmfLineDash.valueOf(SUBSECTION_DASH.getValue(flag));
+    }
+    
+
+    /**
+     * The pen sets every other pixel (this style is applicable only for cosmetic pens).
+     */
+    public boolean isAlternateDash() {
+        return SUBSECTION_ALTERNATE.isSet(flag);
+    }
+}

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfRecord.java

@@ -19,6 +19,7 @@ package org.apache.poi.hwmf.record;
 
 import java.io.IOException;
 
+import org.apache.poi.hwmf.draw.HwmfGraphics;
 import org.apache.poi.util.LittleEndianInputStream;
 
 public interface HwmfRecord {
@@ -32,4 +33,11 @@ public interface HwmfRecord {
      * @throws IOException
      */
     int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException;
+    
+    /**
+     * Apply the record settings to the graphics context
+     *
+     * @param ctx the graphics context to modify
+     */
+    void draw(HwmfGraphics ctx);
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfTernaryRasterOp.java

@@ -285,7 +285,7 @@ public enum HwmfTernaryRasterOp {
         this.opCmd=opCmd;
     }
     
-    public static HwmfTernaryRasterOp fromOpIndex(int opIndex) {
+    public static HwmfTernaryRasterOp valueOf(int opIndex) {
         for (HwmfTernaryRasterOp bb : HwmfTernaryRasterOp.values()) {
             if (bb.opIndex == opIndex) {
                 return bb;

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfText.java

@@ -19,9 +19,12 @@ package org.apache.poi.hwmf.record;
 
 import java.io.IOException;
 
+import org.apache.poi.hwmf.draw.HwmfGraphics;
 import org.apache.poi.hwmf.record.HwmfMisc.WmfSetMapMode;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
+import org.apache.poi.util.LocaleUtil;
+import org.apache.poi.util.RecordFormatException;
 
 public class HwmfText {
 
@@ -38,16 +41,23 @@ public class HwmfText {
          * this value is transformed and rounded to the nearest pixel. For details about setting the
          * mapping mode, see META_SETMAPMODE
          */
-        int charExtra;
+        private int charExtra;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setTextCharExtra;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             charExtra = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     /**
@@ -55,16 +65,23 @@ public class HwmfText {
      */
     public static class WmfSetTextColor implements HwmfRecord {
         
-        HwmfColorRef colorRef;
+        private HwmfColorRef colorRef;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setTextColor;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             colorRef = new HwmfColorRef();
             return colorRef.init(leis);
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     /**
@@ -76,7 +93,7 @@ public class HwmfText {
         /**
          * A 16-bit unsigned integer that specifies the number of space characters in the line.
          */
-        int breakCount;
+        private int breakCount;
         
         /**
          * A 16-bit unsigned integer that specifies the total extra space, in logical
@@ -84,17 +101,24 @@ public class HwmfText {
          * identified by the BreakExtra member is transformed and rounded to the nearest pixel. For
          * details about setting the mapping mode, see {@link WmfSetMapMode}.
          */
-        int breakExtra;
+        private int breakExtra;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setBkColor;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             breakCount = leis.readUShort();
             breakExtra = leis.readUShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     /**
@@ -105,7 +129,7 @@ public class HwmfText {
         /**
          * A 16-bit signed integer that defines the length of the string, in bytes, pointed to by String.
          */
-        int stringLength;
+        private int stringLength;
         /**
          * The size of this field MUST be a multiple of two. If StringLength is an odd
          * number, then this field MUST be of a size greater than or equal to StringLength + 1.
@@ -114,31 +138,38 @@ public class HwmfText {
          * length of the string.
          * The string is written at the location specified by the XStart and YStart fields.
          */
-        String text;
+        private String text;
         /**
          * A 16-bit signed integer that defines the vertical (y-axis) coordinate, in logical
          * units, of the point where drawing is to start.
          */
-        int yStart;
+        private int yStart;
         /**
          * A 16-bit signed integer that defines the horizontal (x-axis) coordinate, in
          * logical units, of the point where drawing is to start.
          */
-        int xStart;  
+        private int xStart;  
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.textOut;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             stringLength = leis.readShort();
-            byte buf[] = new byte[stringLength+(stringLength%2)];
+            byte buf[] = new byte[stringLength+(stringLength&1)];
             leis.readFully(buf);
-            text = new String(buf, "UTF16-LE").trim();
+            text = new String(buf, 0, stringLength, LocaleUtil.CHARSET_1252).trim();
             yStart = leis.readShort();
             xStart = leis.readShort();
             return 3*LittleEndianConsts.SHORT_SIZE+buf.length;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     /**
@@ -152,16 +183,16 @@ public class HwmfText {
          * A 16-bit signed integer that defines the y-coordinate, in logical units, where the 
         text string is to be located.
          */
-        int y;  
+        private int y;  
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, where the 
         text string is to be located.
          */
-        int x;  
+        private int x;  
         /**
          * A 16-bit signed integer that defines the length of the string.
          */
-        int stringLength;
+        private int stringLength;
         /**
          * A 16-bit unsigned integer that defines the use of the application-defined 
          * rectangle. This member can be a combination of one or more values in the 
@@ -196,7 +227,7 @@ public class HwmfText {
          * Indicates that both horizontal and vertical character displacement values 
          * SHOULD be provided.
          */
-        int fwOpts;
+        private int fwOpts;
         /**
          * An optional 8-byte Rect Object (section 2.2.2.18) that defines the 
          * dimensions, in logical coordinates, of a rectangle that is used for clipping, opaquing, or both.
@@ -205,43 +236,58 @@ public class HwmfText {
          * Each value is a 16-bit signed integer that defines the coordinate, in logical coordinates, of 
          * the upper-left corner of the rectangle
          */
-        int left,top,right,bottom;
+        private int left,top,right,bottom;
         /**
          * A variable-length string that specifies the text to be drawn. The string does 
          * not need to be null-terminated, because StringLength specifies the length of the string. If 
          * the length is odd, an extra byte is placed after it so that the following member (optional Dx) is 
          * aligned on a 16-bit boundary.
          */
-        String text;
+        private String text;
         /**
          * An optional array of 16-bit signed integers that indicate the distance between 
          * origins of adjacent character cells. For example, Dx[i] logical units separate the origins of 
          * character cell i and character cell i + 1. If this field is present, there MUST be the same 
          * number of values as there are characters in the string.
          */
-        int dx[];
+        private int dx[];
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.extTextOut;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             y = leis.readShort();
             x = leis.readShort();
             stringLength = leis.readShort();
             fwOpts = leis.readUShort();
-            left = leis.readShort();
-            top = leis.readShort();
-            right = leis.readShort();
-            bottom = leis.readShort();
             
-            byte buf[] = new byte[stringLength+(stringLength%2)];
+            int size = 4*LittleEndianConsts.SHORT_SIZE;
+            
+            if (fwOpts != 0) {
+                // the bounding rectangle is optional and only read when fwOpts are given
+                left = leis.readShort();
+                top = leis.readShort();
+                right = leis.readShort();
+                bottom = leis.readShort();
+                size += 4*LittleEndianConsts.SHORT_SIZE;
+            }
+            
+            byte buf[] = new byte[stringLength+(stringLength&1)];
             leis.readFully(buf);
-            text = new String(buf, "UTF16-LE");
+            text = new String(buf, 0, stringLength, LocaleUtil.CHARSET_1252);
+            size += buf.length;
             
-            int size = 8*LittleEndianConsts.SHORT_SIZE+buf.length;
+            // -6 bytes of record function and length header
-            if (size < recordSize) {
+            int remainingRecordSize = (int)(recordSize-6);
-                dx = new int[text.length()];
+            if (size < remainingRecordSize) {
+                if (size + stringLength*LittleEndianConsts.SHORT_SIZE < remainingRecordSize) {
+                    throw new RecordFormatException("can't read Dx array - given recordSize doesn't contain enough values for string length "+stringLength);
+                }
+                
+                dx = new int[stringLength];
                 for (int i=0; i<dx.length; i++) {
                     dx[i] = leis.readShort();
                 }
@@ -250,6 +296,11 @@ public class HwmfText {
             
             return size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
 
@@ -320,28 +371,42 @@ public class HwmfText {
          * VTA_BASELINE (0x0018):
          * The reference point MUST be on the baseline of the text.
          */
-        int textAlignmentMode;
+        private int textAlignmentMode;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setTextAlign;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             textAlignmentMode = leis.readUShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
     
     public static class WmfCreateFontIndirect implements HwmfRecord {
-        HwmfFont font;
+        private HwmfFont font;
         
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.createFontIndirect;
         }
         
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             font = new HwmfFont();
             return font.init(leis);
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/record/HwmfWindowing.java

@@ -17,43 +17,17 @@
 
 package org.apache.poi.hwmf.record;
 
+import java.awt.geom.Rectangle2D;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.poi.hwmf.draw.HwmfGraphics;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.LittleEndianInputStream;
 
 public class HwmfWindowing {
 
-    /**
-     * The META_OFFSETCLIPRGN record moves the clipping region in the playback device context by the
-     * specified offsets.
-     */
-    public static class WmfOffsetClipRgn implements HwmfRecord {
-
-        /**
-         * A 16-bit signed integer that defines the number of logical units to move up or down.
-         */
-        int yOffset;
-
-        /**
-         * A 16-bit signed integer that defines the number of logical units to move left or right.
-         */
-        int xOffset;
-
-        public HwmfRecordType getRecordType() {
-            return HwmfRecordType.offsetClipRgn;
-        }
-
-        public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            yOffset = leis.readShort();
-            xOffset = leis.readShort();
-            return 2*LittleEndianConsts.SHORT_SIZE;
-        }
-    }
-
-
     /**
      * The META_SETVIEWPORTORG record defines the viewport origin in the playback device context.
      */
@@ -62,22 +36,29 @@ public class HwmfWindowing {
         /**
          * A 16-bit signed integer that defines the vertical offset, in device units.
          */
-        int y;
+        private int y;
 
         /**
          * A 16-bit signed integer that defines the horizontal offset, in device units.
          */
-        int x;
+        private int x;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setViewportOrg;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             y = leis.readShort();
             x = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setViewportOrg(x, y);
+        }
     }
 
     /**
@@ -90,23 +71,30 @@ public class HwmfWindowing {
          * A 16-bit signed integer that defines the vertical extent
          * of the viewport in device units.
          */
-        int y;
+        private int height;
 
         /**
          * A 16-bit signed integer that defines the horizontal extent
          * of the viewport in device units.
          */
-        int x;
+        private int width;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setViewportExt;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            y = leis.readShort();
+            height = leis.readShort();
-            x = leis.readShort();
+            width = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setViewportExt(width, height);
+        }
     }
 
     /**
@@ -118,22 +106,30 @@ public class HwmfWindowing {
         /**
          * A 16-bit signed integer that defines the vertical offset, in device units.
          */
-        int yOffset;
+        private int yOffset;
 
         /**
          * A 16-bit signed integer that defines the horizontal offset, in device units.
          */
-        int xOffset;
+        private int xOffset;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.offsetViewportOrg;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yOffset = leis.readShort();
             xOffset = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            Rectangle2D viewport = ctx.getProperties().getViewport();
+            ctx.getProperties().setViewportOrg(viewport.getX()+xOffset, viewport.getY()+yOffset);
+        }
     }
 
     /**
@@ -144,22 +140,29 @@ public class HwmfWindowing {
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units.
          */
-        int y;
+        private int y;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units.
          */
-        int x;
+        private int x;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setWindowOrg;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             y = leis.readShort();
             x = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setWindowOrg(x, y);
+        }
     }
 
     /**
@@ -172,23 +175,30 @@ public class HwmfWindowing {
          * A 16-bit signed integer that defines the vertical extent of
          * the window in logical units.
          */
-        int y;
+        private int height;
 
         /**
          * A 16-bit signed integer that defines the horizontal extent of
          * the window in logical units.
          */
-        int x;
+        private int width;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.setWindowExt;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
-            y = leis.readShort();
+            height = leis.readShort();
-            x = leis.readShort();
+            width = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            ctx.getProperties().setWindowExt(width, height);
+        }
     }
 
     /**
@@ -200,22 +210,30 @@ public class HwmfWindowing {
         /**
          * A 16-bit signed integer that defines the vertical offset, in device units.
          */
-        int yOffset;
+        private int yOffset;
 
         /**
          * A 16-bit signed integer that defines the horizontal offset, in device units.
          */
-        int xOffset;
+        private int xOffset;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.offsetWindowOrg;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yOffset = leis.readShort();
             xOffset = leis.readShort();
             return 2*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            Rectangle2D window = ctx.getProperties().getWindow();
+            ctx.getProperties().setWindowOrg(window.getX()+xOffset, window.getY()+yOffset);
+        }
     }
 
     /**
@@ -228,30 +246,32 @@ public class HwmfWindowing {
          * A 16-bit signed integer that defines the amount by which to divide the
          * result of multiplying the current y-extent by the value of the yNum member.
          */
-        int yDenom;
+        private int yDenom;
 
         /**
          * A 16-bit signed integer that defines the amount by which to multiply the
          * current y-extent.
          */
-        int yNum;
+        private int yNum;
 
         /**
          * A 16-bit signed integer that defines the amount by which to divide the
          * result of multiplying the current x-extent by the value of the xNum member.
          */
-        int xDenom;
+        private int xDenom;
 
         /**
          * A 16-bit signed integer that defines the amount by which to multiply the
          * current x-extent.
          */
-        int xNum;
+        private int xNum;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.scaleWindowExt;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yDenom = leis.readShort();
             yNum = leis.readShort();
@@ -259,6 +279,14 @@ public class HwmfWindowing {
             xNum = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            Rectangle2D window = ctx.getProperties().getWindow();
+            double width = window.getWidth() * xNum / xDenom;
+            double height = window.getHeight() * yNum / yDenom;
+            ctx.getProperties().setWindowExt(width, height);
+        }
     }
 
 
@@ -273,30 +301,32 @@ public class HwmfWindowing {
          * A 16-bit signed integer that defines the amount by which to divide the
          * result of multiplying the current y-extent by the value of the yNum member.
          */
-        int yDenom;
+        private int yDenom;
 
         /**
          * A 16-bit signed integer that defines the amount by which to multiply the
          * current y-extent.
          */
-        int yNum;
+        private int yNum;
 
         /**
          * A 16-bit signed integer that defines the amount by which to divide the
          * result of multiplying the current x-extent by the value of the xNum member.
          */
-        int xDenom;
+        private int xDenom;
 
         /**
          * A 16-bit signed integer that defines the amount by which to multiply the
          * current x-extent.
          */
-        int xNum;
+        private int xNum;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.scaleViewportExt;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             yDenom = leis.readShort();
             yNum = leis.readShort();
@@ -304,6 +334,48 @@ public class HwmfWindowing {
             xNum = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+            Rectangle2D viewport = ctx.getProperties().getViewport();
+            double width = viewport.getWidth() * xNum / xDenom;
+            double height = viewport.getHeight() * yNum / yDenom;
+            ctx.getProperties().setViewportExt(width, height);
+        }
+    }
+
+    /**
+     * The META_OFFSETCLIPRGN record moves the clipping region in the playback device context by the
+     * specified offsets.
+     */
+    public static class WmfOffsetClipRgn implements HwmfRecord {
+
+        /**
+         * A 16-bit signed integer that defines the number of logical units to move up or down.
+         */
+        private int yOffset;
+
+        /**
+         * A 16-bit signed integer that defines the number of logical units to move left or right.
+         */
+        private int xOffset;
+
+        @Override
+        public HwmfRecordType getRecordType() {
+            return HwmfRecordType.offsetClipRgn;
+        }
+
+        @Override
+        public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
+            yOffset = leis.readShort();
+            xOffset = leis.readShort();
+            return 2*LittleEndianConsts.SHORT_SIZE;
+        }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
@@ -316,30 +388,32 @@ public class HwmfWindowing {
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * lower-right corner of the rectangle.
          */
-        int bottom;
+        private int bottom;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * lower-right corner of the rectangle.
          */
-        int right;
+        private int right;
 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int top;
+        private int top;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int left;
+        private int left;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.excludeClipRect;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             bottom = leis.readShort();
             right = leis.readShort();
@@ -347,6 +421,11 @@ public class HwmfWindowing {
             left = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
 
@@ -360,30 +439,32 @@ public class HwmfWindowing {
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * lower-right corner of the rectangle.
          */
-        int bottom;
+        private int bottom;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * lower-right corner of the rectangle.
          */
-        int right;
+        private int right;
 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int top;
+        private int top;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int left;
+        private int left;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.intersectClipRect;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             bottom = leis.readShort();
             right = leis.readShort();
@@ -391,11 +472,15 @@ public class HwmfWindowing {
             left = leis.readShort();
             return 4*LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     /**
-     * The META_INTERSECTCLIPRECT record sets the clipping region in the playback device context to the
+     * The META_SELECTCLIPREGION record specifies a Region Object to be the current clipping region.
-     * intersection of the existing clipping region and the specified rectangle.
      */
     public static class WmfSelectClipRegion implements HwmfRecord {
 
@@ -403,16 +488,23 @@ public class HwmfWindowing {
          * A 16-bit unsigned integer used to index into the WMF Object Table to get
          * the region to be clipped.
          */
-        int region;
+        private int region;
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.selectClipRegion;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             region = leis.readShort();
             return LittleEndianConsts.SHORT_SIZE;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 
     public static class WmfScanObject {
@@ -421,30 +513,30 @@ public class HwmfWindowing {
          * coordinates in the ScanLines array. This value MUST be a multiple of 2, since left and right
          * endpoints are required to specify each scanline.
          */
-        int count;
+        private int count;
         /**
          * A 16-bit unsigned integer that defines the vertical (y-axis) coordinate, in logical units, of the top scanline.
          */
-        int top;
+        private int top;
         /**
          * A 16-bit unsigned integer that defines the vertical (y-axis) coordinate, in logical units, of the bottom scanline.
          */
-        int bottom;
+        private int bottom;
         /**
          * A 16-bit unsigned integer that defines the horizontal (x-axis) coordinate,
          * in logical units, of the left endpoint of the scanline.
          */
-        int left_scanline[];
+        private int left_scanline[];
         /**
          * A 16-bit unsigned integer that defines the horizontal (x-axis) coordinate,
          * in logical units, of the right endpoint of the scanline.
          */
-        int right_scanline[];
+        private int right_scanline[];
         /**
          * A 16-bit unsigned integer that MUST be the same as the value of the Count
          * field; it is present to allow upward travel in the structure.
          */
-        int count2;
+        private int count2;
 
         public int init(LittleEndianInputStream leis) {
             count = leis.readUShort();
@@ -465,62 +557,64 @@ public class HwmfWindowing {
         /**
          * A 16-bit signed integer. A value that MUST be ignored.
          */
-        int nextInChain;
+        private int nextInChain;
         /**
          * A 16-bit signed integer that specifies the region identifier. It MUST be 0x0006.
          */
-        int objectType;
+        private int objectType;
         /**
          * A 32-bit unsigned integer. A value that MUST be ignored.
          */
-        int objectCount;
+        private int objectCount;
         /**
          * A 16-bit signed integer that defines the size of the region in bytes plus the size of aScans in bytes.
          */
-        int regionSize;
+        private int regionSize;
         /**
          * A 16-bit signed integer that defines the number of scanlines composing the region.
          */
-        int scanCount;
+        private int scanCount;
 
         /**
          * A 16-bit signed integer that defines the maximum number of points in any one scan in this region.
          */
-        int maxScan;
+        private int maxScan;
 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * lower-right corner of the rectangle.
          */
-        int bottom;
+        private int bottom;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * lower-right corner of the rectangle.
          */
-        int right;
+        private int right;
 
         /**
          * A 16-bit signed integer that defines the y-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int top;
+        private int top;
 
         /**
          * A 16-bit signed integer that defines the x-coordinate, in logical units, of the
          * upper-left corner of the rectangle.
          */
-        int left;
+        private int left;
 
         /**
          * An array of Scan objects that define the scanlines in the region.
          */
-        WmfScanObject scanObjects[];
+        private WmfScanObject scanObjects[];
 
+        @Override
         public HwmfRecordType getRecordType() {
             return HwmfRecordType.createRegion;
         }
 
+        @Override
         public int init(LittleEndianInputStream leis, long recordSize, int recordFunction) throws IOException {
             nextInChain = leis.readShort();
             objectType = leis.readShort();
@@ -545,5 +639,10 @@ public class HwmfWindowing {
 
             return 20 + size;
         }
+
+        @Override
+        public void draw(HwmfGraphics ctx) {
+
+        }
     }
 }

src/scratchpad/src/org/apache/poi/hwmf/usermodel/HwmfPicture.java

@@ -17,6 +17,8 @@
 
 package org.apache.poi.hwmf.usermodel;
 
+import java.io.BufferedInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
@@ -37,7 +39,8 @@ public class HwmfPicture {
     }
     
     public HwmfPicture(InputStream inputStream) throws IOException {
-        LittleEndianInputStream leis = new LittleEndianInputStream(inputStream);
+        BufferedInputStream bis = new BufferedInputStream(inputStream, 10000);
+        LittleEndianInputStream leis = new LittleEndianInputStream(bis);
         HwmfPlaceableHeader placeableHeader = HwmfPlaceableHeader.readHeader(leis);
         HwmfHeader header = new HwmfHeader(leis);
         
@@ -65,8 +68,15 @@ public class HwmfPicture {
             }
             
             consumedSize += wr.init(leis, recordSize, recordFunction);
-            if (consumedSize < recordSize) {
+            int remainingSize = (int)(recordSize - consumedSize);
-                leis.skip(recordSize - consumedSize);
+            assert(remainingSize >= 0);
+            if (remainingSize > 0) {
+                byte remaining[] = new byte[remainingSize];
+                leis.read(remaining);
+                FileOutputStream fos = new FileOutputStream("remaining.dat");
+                fos.write(remaining);
+                fos.close();
+//                 leis.skip(remainingSize);
             }
         }
     }

src/scratchpad/testcases/org/apache/poi/hwmf/TestHwmfParsing.java

@@ -19,14 +19,27 @@ package org.apache.poi.hwmf;
 
 import static org.junit.Assert.assertEquals;
 
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
 import java.io.File;
+import java.io.FileFilter;
 import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.List;
+import java.util.Locale;
+
+import javax.imageio.ImageIO;
 
 import org.apache.poi.POIDataSamples;
+import org.apache.poi.hwmf.record.HwmfFill.HwmfImageRecord;
 import org.apache.poi.hwmf.record.HwmfRecord;
 import org.apache.poi.hwmf.usermodel.HwmfPicture;
+import org.apache.poi.sl.usermodel.PictureData;
+import org.apache.poi.sl.usermodel.PictureData.PictureType;
+import org.apache.poi.sl.usermodel.SlideShow;
+import org.apache.poi.sl.usermodel.SlideShowFactory;
+import org.junit.Ignore;
 import org.junit.Test;
 
 public class TestHwmfParsing {
@@ -39,4 +52,58 @@ public class TestHwmfParsing {
         List<HwmfRecord> records = wmf.getRecords();
         assertEquals(581, records.size());
     }
+
+    @Test
+    @Ignore
+    public void extract() throws IOException {
+        File dir = new File("test-data/slideshow");
+        File files[] = dir.listFiles(new FileFilter() {
+            public boolean accept(File pathname) {
+                return pathname.getName().matches("(?i).*\\.pptx?$");
+            }
+        });
+
+        boolean outputFiles = false;
+
+        File outdir = new File("build/ppt");
+        if (outputFiles) {
+            outdir.mkdirs();
+        }
+        int wmfIdx = 1;
+        for (File f : files) {
+            try {
+                SlideShow<?,?> ss = SlideShowFactory.create(f);
+                for (PictureData pd : ss.getPictureData()) {
+                    if (pd.getType() != PictureType.WMF) continue;
+                    byte wmfData[] = pd.getData();
+                    if (outputFiles) {
+                        String filename = String.format(Locale.ROOT, "pic%04d.wmf", wmfIdx);
+                        FileOutputStream fos = new FileOutputStream(new File(outdir, filename));
+                        fos.write(wmfData);
+                        fos.close();
+                    }
+
+                    HwmfPicture wmf = new HwmfPicture(new ByteArrayInputStream(wmfData));
+
+                    int bmpIndex = 1;
+                    for (HwmfRecord r : wmf.getRecords()) {
+                        if (r instanceof HwmfImageRecord) {
+                            BufferedImage bi = ((HwmfImageRecord)r).getImage();
+                            if (outputFiles) {
+                                String filename = String.format(Locale.ROOT, "pic%04d-%04d.png", wmfIdx, bmpIndex);
+                                ImageIO.write(bi, "PNG", new File(outdir, filename));
+                            }
+                            bmpIndex++;
+                        }
+                    }
+
+                    wmfIdx++;
+                }
+                ss.close();
+            } catch (Exception e) {
+                System.out.println(f+" ignored.");
+            }
+        }
+    }
+
 }