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Bug 54542 - Add support for cropped images in XSLFPictureShape.drawContent()

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1634410 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andreas Beeker 2014-10-27 00:00:05 +00:00
parent f818d1fdb7
commit 2ff41d7acd
4 changed files with 115 additions and 18 deletions
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60
src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFImageRenderer.java
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@ -19,16 +19,19 @@
package org.apache.poi.xslf.usermodel;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.util.Beta;
import javax.imageio.ImageIO;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.util.Beta;
/**
* For now this class renders only images supported by the javax.imageio.ImageIO
* framework. Subclasses can override this class to support other formats, for
@ -72,17 +75,52 @@ public class XSLFImageRenderer {
*
* @return true if the picture data was successfully rendered
*/
public boolean drawImage(Graphics2D graphics, XSLFPictureData data,
Rectangle2D anchor) {
public boolean drawImage(Graphics2D graphics, XSLFPictureData data,
Rectangle2D anchor) {
return drawImage(graphics, data, anchor, null);
}
/**
* Render picture data into the supplied graphics
*
* @return true if the picture data was successfully rendered
*/
public boolean drawImage(Graphics2D graphics, XSLFPictureData data,
Rectangle2D anchor, Insets clip) {
boolean isClipped = true;
if (clip == null) {
isClipped = false;
clip = new Insets(0,0,0,0);
}
try {
BufferedImage img = ImageIO.read(data.getPackagePart().getInputStream());
double sx = anchor.getWidth()/img.getWidth();
double sy = anchor.getHeight()/img.getHeight();
double tx = anchor.getX();
double ty = anchor.getY();
int iw = img.getWidth();
int ih = img.getHeight();
double aw = anchor.getWidth();
double ah = anchor.getHeight();
double ax = anchor.getX();
double ay = anchor.getY();
double cw = (100000-clip.left-clip.right) / 100000.0;
double ch = (100000-clip.top-clip.bottom) / 100000.0;
double sx = aw/(iw*cw);
double sy = ah/(ih*ch);
double tx = anchor.getX()-(iw*sx*clip.left/100000.0);
double ty = anchor.getY()-(ih*sy*clip.top/100000.0);
AffineTransform at = new AffineTransform(sx, 0, 0, sy, tx, ty) ;
graphics.drawRenderedImage(img, at);
if (isClipped) {
Shape clipOld = graphics.getClip();
AffineTransform atClip = new AffineTransform(aw, 0, 0, ah, ax, ay);
Shape clipNew = atClip.createTransformedShape(new Rectangle2D.Double(0, 0, 1, 1));
graphics.setClip(clipNew);
graphics.drawRenderedImage(img, at);
graphics.setClip(clipOld);
} else {
graphics.drawRenderedImage(img, at);
}
return true;
} catch (Exception e) {

12
src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFPictureShape.java
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@ -20,6 +20,7 @@
package org.apache.poi.xslf.usermodel;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
@ -40,6 +41,7 @@ import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;
import org.openxmlformats.schemas.drawingml.x2006.main.CTOfficeArtExtension;
import org.openxmlformats.schemas.drawingml.x2006.main.CTOfficeArtExtensionList;
import org.openxmlformats.schemas.drawingml.x2006.main.CTPresetGeometry2D;
import org.openxmlformats.schemas.drawingml.x2006.main.CTRelativeRect;
import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.STShapeType;
import org.openxmlformats.schemas.presentationml.x2006.main.CTApplicationNonVisualDrawingProps;
@ -177,6 +179,12 @@ public class XSLFPictureShape extends XSLFSimpleShape {
return id;
}
public Insets getBlipClip(){
CTPicture ct = (CTPicture)getXmlObject();
CTRelativeRect r = ct.getBlipFill().getSrcRect();
return (r == null) ? null : new Insets(r.getT(), r.getL(), r.getB(), r.getR());
}
@Override
public void drawContent(Graphics2D graphics) {
@ -188,8 +196,10 @@ public class XSLFPictureShape extends XSLFSimpleShape {
RenderableShape rShape = new RenderableShape(this);
Rectangle2D anchor = rShape.getAnchor(graphics);
Insets insets = getBlipClip();
renderer.drawImage(graphics, data, anchor);
renderer.drawImage(graphics, data, anchor, insets);
}

61
src/ooxml/testcases/org/apache/poi/xslf/TestXSLFBugs.java
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@ -16,10 +16,24 @@
==================================================================== */
package org.apache.poi.xslf;
import static junit.framework.TestCase.assertEquals;
import static org.apache.poi.POITestCase.assertContains;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.net.URI;
import java.util.List;
import org.apache.poi.POITestCase;
import javax.imageio.ImageIO;
import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.xslf.usermodel.DrawingParagraph;
@ -31,11 +45,14 @@ import org.apache.poi.xslf.usermodel.XSLFRelation;
import org.apache.poi.xslf.usermodel.XSLFShape;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFSlideLayout;
import org.junit.Ignore;
import org.junit.Test;
public class TestXSLFBugs extends POITestCase {
public class TestXSLFBugs {
@Test
@SuppressWarnings("deprecation")
public void test51187() throws Exception {
public void bug51187() throws Exception {
XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("51187.pptx");
assertEquals(1, ss.getSlides().length);
@ -70,7 +87,8 @@ public class TestXSLFBugs extends POITestCase {
/**
* Slide relations with anchors in them
*/
public void testTIKA705() {
@Test
public void tika705() {
XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("with_japanese.pptx");
// Should have one slide
@ -117,7 +135,9 @@ public class TestXSLFBugs extends POITestCase {
* slide, eg presentation.xml rID1 -> slide1.xml, but slide1.xml
* rID2 -> slide3.xml
*/
public void DISABLEDtest54916() throws Exception {
@Test
@Ignore
public void bug54916() throws Exception {
XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("OverlappingRelations.pptx");
XSLFSlide slide;
@ -144,7 +164,8 @@ public class TestXSLFBugs extends POITestCase {
* there is no data available and XSLFPictureShape.getPictureData()
* gives a NPE, see bug #56812
*/
public void test56812() throws Exception {
@Test
public void bug56812() throws Exception {
XMLSlideShow ppt = XSLFTestDataSamples.openSampleDocument("56812.pptx");
int internalPictures = 0;
@ -173,6 +194,34 @@ public class TestXSLFBugs extends POITestCase {
assertEquals(2, internalPictures);
assertEquals(1, externalPictures);
}
@Test
@Ignore("Similar to TestFontRendering it doesn't make sense to compare images because of tiny rendering differences in windows/unix")
public void bug54542() throws Exception {
XMLSlideShow ss = XSLFTestDataSamples.openSampleDocument("54542_cropped_bitmap.pptx");
Dimension pgsize = ss.getPageSize();
XSLFSlide slide = ss.getSlides()[0];
// render it
double zoom = 1;
AffineTransform at = new AffineTransform();
at.setToScale(zoom, zoom);
BufferedImage imgActual = new BufferedImage((int)Math.ceil(pgsize.width*zoom), (int)Math.ceil(pgsize.height*zoom), BufferedImage.TYPE_3BYTE_BGR);
Graphics2D graphics = imgActual.createGraphics();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
graphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
graphics.setTransform(at);
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
slide.draw(graphics);
ImageIO.write(imgActual, "PNG", new File("bug54542.png"));
}
protected String getSlideText(XSLFSlide slide) {
StringBuffer text = new StringBuffer();

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test-data/slideshow/54542_cropped_bitmap.pptx Normal file
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