added support for background-color

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@193248 13f79535-47bb-0310-9956-ffa450edef68

STATUS

@@ -12,7 +12,8 @@ Get images working
 [DONE]Incorporate Eric Schaeffer's fix to tables in static-content
 [DONE] Incorporate Kelly Campell's fixes to GifJpegImage
 [PARTIAL] Incorporate Eric Schaeffer's further table fixes
-Incorporate Eric Schaeffer's background colour implementation
+[DONE] Incorporate Eric Schaeffer's background colour implementation
+	(actually used different approach with background colour as trait)
 
 Other Bugs to fix:
 

src/codegen/properties.xml

@@ -323,5 +323,12 @@
     </datatype>
     <default>false</default>
   </property>
+  <property>
+    <name>background-color</name>
+    <class-name>BackgroundColor</class-name>
+    <inherited>false</inherited>
+    <datatype>ColorType</datatype>
+    <default>transparent</default>
+  </property>
 </property-list>
 

src/org/apache/fop/datatypes/ColorType.java

@@ -22,7 +22,7 @@
     Alternately, this  acknowledgment may  appear in the software itself,  if
     and wherever such third-party acknowledgments normally appear.
  
- 4. The names "Fop" and  "Apache Software Foundation"  must not be used to
+ 4. The names "FOP" and  "Apache Software Foundation"  must not be used to
     endorse  or promote  products derived  from this  software without  prior
     written permission. For written permission, please contact
     apache@apache.org.
@@ -64,6 +64,9 @@ public class ColorType {
     /** the blue component */
     protected float blue;
 
+    /** the alpha component */
+    protected float alpha = 0;
+
     /**
      * set the colour given a particular String specifying either a
      * colour name or #RGB or #RRGGBB 
@@ -163,6 +166,11 @@ public class ColorType {
 		this.red = 0.7f;
 		this.green = 0.5f;
 		this.blue = 0;
+	    } else if (value.toLowerCase().equals("transparent")) {
+		this.red = 0;
+		this.green = 0;
+		this.blue = 0;
+		this.alpha = 1;
 	    } else {
 		this.red = 0;
 		this.green = 0;
@@ -183,4 +191,8 @@ public class ColorType {
     public float red() {
 	return this.red;
     }
+
+    public float alpha() {
+	return this.alpha;
+    }
 }

src/org/apache/fop/fo/PropertyListBuilder.java

@@ -104,6 +104,7 @@ public class PropertyListBuilder {
 	propertyTable.put("href",HRef.maker());
 	propertyTable.put("column-width",ColumnWidth.maker());
 	propertyTable.put("keep-with-next",KeepWithNext.maker());
+	propertyTable.put("background-color",BackgroundColor.maker());
 
 	propertyTable.put("height",SVGLength.maker());
 	propertyTable.put("width",SVGLength.maker());

src/org/apache/fop/fo/flow/Block.java

@@ -55,6 +55,7 @@ package org.apache.fop.fo.flow;
 import org.apache.fop.fo.*;
 import org.apache.fop.fo.properties.*;
 import org.apache.fop.layout.*;
+import org.apache.fop.datatypes.*;
 import org.apache.fop.apps.FOPException;
 
 public class Block extends FObjMixed {
@@ -82,6 +83,7 @@ public class Block extends FObjMixed {
     int spaceAfter;
     int textIndent;
     int keepWithNext;
+    ColorType backgroundColor;
 
     BlockArea blockArea;
 
@@ -133,6 +135,8 @@ public class Block extends FObjMixed {
 		this.properties.get("text-indent").getLength().mvalue(); 
 	    this.keepWithNext = 
 		this.properties.get("keep-with-next").getEnum();
+	    this.backgroundColor =
+		this.properties.get("background-color").getColorType();
 
 	    if (area instanceof BlockArea) {
 		area.end();
@@ -150,8 +154,8 @@ public class Block extends FObjMixed {
 
 	    if (this.isInTableCell) {
 		startIndent += forcedStartOffset;
-		endIndent = area.getAllocationWidth() - startIndent -
-		    forcedWidth;
+		endIndent = area.getAllocationWidth() - forcedWidth -
+		    forcedStartOffset;
 	    }
 
 	    this.marker = 0;
@@ -182,6 +186,7 @@ public class Block extends FObjMixed {
 			  area.spaceLeft(), startIndent, endIndent,
 			  textIndent, align, alignLast, lineHeight);
 	blockArea.setPage(area.getPage());
+	blockArea.setBackgroundColor(backgroundColor);
 	blockArea.start();
 
 	int numChildren = this.children.size();

src/org/apache/fop/fo/flow/DisplayGraphic.java

@@ -144,8 +144,8 @@ public class DisplayGraphic extends FObj {
 
 	    if (this.isInTableCell) {
 		startIndent += forcedStartOffset;
-		endIndent = area.getAllocationWidth() - startIndent -
-		    forcedWidth;
+		endIndent = area.getAllocationWidth() - forcedWidth -
+		    forcedStartOffset;
 	    }
 
 	    this.marker = 0;

src/org/apache/fop/fo/flow/DisplayRule.java

@@ -115,6 +115,23 @@ public class DisplayRule extends FObj {
 	    area.addDisplaySpace(spaceBefore);
 	}
 
+	if (this.isInLabel) {
+	    startIndent += bodyIndent;
+	    endIndent += (area.getAllocationWidth() -
+			  distanceBetweenStarts - startIndent) +
+		labelSeparation;
+	}
+
+	if (this.isInListBody) {
+	    startIndent += bodyIndent + distanceBetweenStarts;
+	}
+
+	if (this.isInTableCell) {
+	    startIndent += forcedStartOffset;
+	    endIndent += area.getAllocationWidth() - forcedWidth -
+		forcedStartOffset;
+	}
+
 	RuleArea ruleArea = new RuleArea(fs,
 					 area.getAllocationWidth(),
 					 area.spaceLeft(),

src/org/apache/fop/fo/flow/Table.java

@@ -55,6 +55,7 @@ package org.apache.fop.fo.flow;
 import org.apache.fop.fo.*;
 import org.apache.fop.fo.properties.*;
 import org.apache.fop.layout.*;
+import org.apache.fop.datatypes.*;
 import org.apache.fop.apps.FOPException;
 
 // Java
@@ -80,6 +81,7 @@ public class Table extends FObj {
     int endIndent;
     int spaceBefore;
     int spaceAfter;
+    ColorType backgroundColor;
 
     Vector columns = new Vector();
     int currentColumnNumber = 0;
@@ -120,6 +122,9 @@ public class Table extends FObj {
 		this.properties.get("space-before.optimum").getLength().mvalue();  
 	    this.spaceAfter =
 		this.properties.get("space-after.optimum").getLength().mvalue(); 
+	    this.backgroundColor =
+		this.properties.get("background-color").getColorType();
+
 	    if (area instanceof BlockArea) {
 		area.end();
 	    }
@@ -152,6 +157,7 @@ public class Table extends FObj {
 			  area.spaceLeft(), startIndent, endIndent, 0,
 			  0, 0, 0);
 	blockArea.setPage(area.getPage());
+	blockArea.setBackgroundColor(backgroundColor);
 	blockArea.start();
 
 	// added by Eric Schaeffer

src/org/apache/fop/fo/flow/TableBody.java

@@ -54,6 +54,7 @@ package org.apache.fop.fo.flow;
 // FOP
 import org.apache.fop.fo.*;
 import org.apache.fop.fo.properties.*;
+import org.apache.fop.datatypes.*;
 import org.apache.fop.layout.*;
 import org.apache.fop.apps.FOPException;
 
@@ -78,6 +79,7 @@ public class TableBody extends FObj {
     int endIndent;
     int spaceBefore;
     int spaceAfter;
+    ColorType backgroundColor;
 
     Vector columns;
 
@@ -117,6 +119,9 @@ public class TableBody extends FObj {
 		this.properties.get("space-before.optimum").getLength().mvalue();  
 	    this.spaceAfter =
 		this.properties.get("space-after.optimum").getLength().mvalue(); 
+	    this.backgroundColor =
+		this.properties.get("background-color").getColorType();
+
 	    if (area instanceof BlockArea) {
 		area.end();
 	    }
@@ -138,6 +143,7 @@ public class TableBody extends FObj {
 			  area.spaceLeft(), startIndent, endIndent, 0,
 			  0, 0, 0);
 	blockArea.setPage(area.getPage());
+	blockArea.setBackgroundColor(backgroundColor);
 	blockArea.start();
 
 	int numChildren = this.children.size();

src/org/apache/fop/fo/flow/TableCell.java

@@ -55,6 +55,7 @@ import org.apache.fop.fo.*;
 import org.apache.fop.fo.properties.*;
 import org.apache.fop.layout.*;
 import org.apache.fop.apps.FOPException;
+import org.apache.fop.datatypes.*;
 
 public class TableCell extends FObj {
 
@@ -74,6 +75,7 @@ public class TableCell extends FObj {
     int endIndent;
     int spaceBefore;
     int spaceAfter;
+    ColorType backgroundColor;
 
     protected int startOffset;
     protected int width;
@@ -119,6 +121,9 @@ public class TableCell extends FObj {
 		this.properties.get("space-before.optimum").getLength().mvalue();  
 	    this.spaceAfter =
 		this.properties.get("space-after.optimum").getLength().mvalue(); 
+	    this.backgroundColor =
+		this.properties.get("background-color").getColorType();
+
 	    if (area instanceof BlockArea) {
 		area.end();
 	    }
@@ -140,6 +145,7 @@ public class TableCell extends FObj {
 			  area.spaceLeft(), startIndent, endIndent, 0,
 			  0, 0, 0);
 	blockArea.setPage(area.getPage());
+	blockArea.setBackgroundColor(backgroundColor);
 	blockArea.start();
 
 	// added by Eric Schaeffer

src/org/apache/fop/fo/flow/TableRow.java

@@ -54,6 +54,7 @@ package org.apache.fop.fo.flow;
 // FOP
 import org.apache.fop.fo.*;
 import org.apache.fop.fo.properties.*;
+import org.apache.fop.datatypes.*;
 import org.apache.fop.layout.*;
 import org.apache.fop.apps.FOPException;
 
@@ -78,6 +79,7 @@ public class TableRow extends FObj {
     int endIndent;
     int spaceBefore;
     int spaceAfter;
+    ColorType backgroundColor;
 
     int widthOfCellsSoFar = 0;
     int largestCellHeight = 0;
@@ -120,6 +122,9 @@ public class TableRow extends FObj {
 		this.properties.get("space-before.optimum").getLength().mvalue();  
 	    this.spaceAfter =
 		this.properties.get("space-after.optimum").getLength().mvalue(); 
+	    this.backgroundColor =
+		this.properties.get("background-color").getColorType();
+
 	    if (area instanceof BlockArea) {
 		area.end();
 	    }
@@ -141,6 +146,7 @@ public class TableRow extends FObj {
 			  area.spaceLeft(), startIndent, endIndent, 0,
 			  0, 0, 0);
 	blockArea.setPage(area.getPage());
+	blockArea.setBackgroundColor(backgroundColor);
 	blockArea.start();
 
 	int numChildren = this.children.size();

src/org/apache/fop/layout/Area.java

@@ -51,6 +51,9 @@
 
 package org.apache.fop.layout;
 
+// FOP
+import org.apache.fop.datatypes.*;
+
 // Java
 import java.util.Vector;
 
@@ -77,6 +80,8 @@ abstract public class Area extends Box {
     /* the page this area is on */
     protected Page page;
 
+    protected ColorType backgroundColor;
+
     public Area (FontState fontState) {
 	this.fontState = fontState;
     }
@@ -137,6 +142,10 @@ abstract public class Area extends Box {
 	return this.page;
     }
 
+    public ColorType getBackgroundColor() {
+	return this.backgroundColor;
+    }
+
     public void increaseHeight(int amount) {
 	this.currentHeight += amount;
     }
@@ -154,6 +163,10 @@ abstract public class Area extends Box {
 	this.page = page;
     }
 
+    public void setBackgroundColor(ColorType bgColor) {
+	this.backgroundColor = bgColor;
+    }
+
     public int spaceLeft() {
 	return maxHeight - currentHeight;
     }

src/org/apache/fop/render/pdf/PDFRenderer.java

@@ -22,7 +22,7 @@
     Alternately, this  acknowledgment may  appear in the software itself,  if
     and wherever such third-party acknowledgments normally appear.
  
- 4. The names "Fop" and  "Apache Software Foundation"  must not be used to
+ 4. The names "FOP" and  "Apache Software Foundation"  must not be used to
     endorse  or promote  products derived  from this  software without  prior
     written permission. For written permission, please contact
     apache@apache.org.
@@ -48,6 +48,7 @@
  Software Foundation, please see <http://www.apache.org/>.
  
  */
+
 package org.apache.fop.render.pdf;
 
 // FOP
@@ -55,6 +56,7 @@ import org.apache.fop.render.Renderer;
 import org.apache.fop.image.ImageArea;
 import org.apache.fop.image.FopImage;
 import org.apache.fop.layout.*;
+import org.apache.fop.datatypes.*;
 import org.apache.fop.svg.*;
 import org.apache.fop.pdf.*;
 
@@ -123,7 +125,8 @@ public class PDFRenderer implements Renderer {
      * @param areaTree the laid-out area tree
      * @param writer the PrintWriter to write the PDF with
      */
-    public void render(AreaTree areaTree, PrintWriter writer) throws IOException {
+    public void render(AreaTree areaTree, PrintWriter writer)
+	throws IOException {
 	System.err.println("rendering areas to PDF");
 	this.pdfResources = this.pdfDoc.getResources();
 	Enumeration e = areaTree.getPages().elements();
@@ -233,6 +236,12 @@ public class PDFRenderer implements Renderer {
 	int ry = this.currentYPosition;
 	int w = area.getContentWidth();
 	int h = area.getHeight();
+	ColorType bg = area.getBackgroundColor();
+	if (bg.alpha() == 0) {
+	    this.addRect(rx, ry, w, -h,
+			 bg.red(), bg.green(), bg.blue(),
+			 bg.red(), bg.green(), bg.blue());
+	}
 	Enumeration e = area.getChildren().elements();
 	while (e.hasMoreElements()) {
 	    Box b = (Box) e.nextElement();