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Bugzilla 52078 - avoid OutOfMemoryError when rendering groupped pictures in HSLF 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1293561 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2012-02-25 09:40:16 +00:00
parent 2774c6717a
commit 715f7d74b4
3 changed files with 30 additions and 15 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.8-beta6" date="2012-??-??">
<action dev="poi-developers" type="fix">52078 - avoid OutOfMemoryError when rendering groupped pictures in HSLF </action>
<action dev="poi-developers" type="fix">52745 - fixed XSSFRichtextString.append to preserve leading / trailing spaces </action>
<action dev="poi-developers" type="fix">52716 - tolerate hyperlinks that have neither location nor relation </action>
<action dev="poi-developers" type="fix">52599 - avoid duplicate text when rendering slides in HSLF</action>

8
src/scratchpad/src/org/apache/poi/hslf/blip/BitmapPainter.java
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@ -40,6 +40,8 @@ import org.apache.poi.util.POILogFactory;
==================================================================== */
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
@ -60,9 +62,9 @@ public final class BitmapPainter implements ImagePainter {
logger.log(POILogger.WARN, "ImageIO failed to create image. image.type: " + pict.getType());
return;
}
Rectangle anchor = parent.getAnchor();
Image scaledImg = img.getScaledInstance(anchor.width, anchor.height, Image.SCALE_SMOOTH);
graphics.drawImage(scaledImg, anchor.x, anchor.y, null);
Rectangle anchor = parent.getLogicalAnchor2D().getBounds();
graphics.drawImage(img, anchor.x, anchor.y, anchor.width, anchor.height, null);
}
}

36
src/scratchpad/src/org/apache/poi/hslf/model/SimpleShape.java
View File

@ -22,6 +22,8 @@ import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ddf.*;
import org.apache.poi.ddf.EscherSpRecord;
@ -246,27 +248,37 @@ public abstract class SimpleShape extends Shape {
setEscherProperty(EscherProperties.TRANSFORM__ROTATION, (theta << 16));
}
/**
*
* @return 'absolute' anchor of this shape relative to the parent sheet
*/
public Rectangle2D getLogicalAnchor2D(){
Rectangle2D anchor = getAnchor2D();
//if it is a groupped shape see if we need to transform the coordinates
if (_parent != null){
List<Shape> lst = new ArrayList<Shape>();
lst.add(_parent);
Shape top = _parent;
while(top.getParent() != null) top = top.getParent();
while(top.getParent() != null) {
top = top.getParent();
lst.add(top);
}
Rectangle2D clientAnchor = top.getAnchor2D();
Rectangle2D spgrAnchor = ((ShapeGroup)top).getCoordinates();
AffineTransform tx = new AffineTransform();
for(int i = lst.size() - 1; i >= 0; i--) {
ShapeGroup prnt = (ShapeGroup)lst.get(i);
Rectangle2D exterior = prnt.getAnchor2D();
Rectangle2D interior = prnt.getCoordinates();
double scalex = spgrAnchor.getWidth()/clientAnchor.getWidth();
double scaley = spgrAnchor.getHeight()/clientAnchor.getHeight();
double x = clientAnchor.getX() + (anchor.getX() - spgrAnchor.getX())/scalex;
double y = clientAnchor.getY() + (anchor.getY() - spgrAnchor.getY())/scaley;
double width = anchor.getWidth()/scalex;
double height = anchor.getHeight()/scaley;
anchor = new Rectangle2D.Double(x, y, width, height);
double scaleX = exterior.getWidth() / interior.getWidth();
double scaleY = exterior.getHeight() / interior.getHeight();
tx.translate(exterior.getX(), exterior.getY());
tx.scale(scaleX, scaleY);
tx.translate(-interior.getX(), -interior.getY());
}
anchor = tx.createTransformedShape(anchor).getBounds2D();
}
int angle = getRotation();