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Home » Eclipse Projects » Remote Application Platform (RAP) » Form & Section Title Backgrounds
Form & Section Title Backgrounds [message #114839] Tue, 09 December 2008 02:56 Go to next message
Eclipse UserFriend
Originally posted by: paul.kendall.orionhealth.com

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I have been working on support for getting the form and section title
backgrounds working. I have used AWT classes to generate the image
for the background and set it in the container. It all works quite well for
me. I am attaching the patch if others would like to try it.

Perhaps it could make it into some release of RAP?

Cheers,
Paul Kendall

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### Eclipse Workspace Patch 1.0
#P org.eclipse.rap.ui.forms
Index: src/org/eclipse/ui/internal/forms/widgets/FormHeading.java
============================================================ =======
RCS file: /cvsroot/rt/org.eclipse.rap/runtime.ui/org.eclipse.rap.ui.fo rms/src/org/eclipse/ui/internal/forms/widgets/FormHeading.ja va,v
retrieving revision 1.2
diff -u -r1.2 FormHeading.java
--- src/org/eclipse/ui/internal/forms/widgets/FormHeading.java 16 Sep 2008 16:26:21 -0000 1.2
+++ src/org/eclipse/ui/internal/forms/widgets/FormHeading.java 9 Dec 2008 00:17:55 -0000
@@ -10,47 +10,28 @@
************************************************************ *******************/
package org.eclipse.ui.internal.forms.widgets;

+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
import java.util.Hashtable;

import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.ListenerList;
-import org.eclipse.jface.action.IMenuManager;
-import org.eclipse.jface.action.IToolBarManager;
-import org.eclipse.jface.action.ToolBarManager;
+import org.eclipse.jface.action.*;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.rwt.graphics.Graphics;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
-//import org.eclipse.swt.dnd.DragSourceListener;
-//import org.eclipse.swt.dnd.DropTargetListener;
-//import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
-//import org.eclipse.swt.events.MouseEvent;
-//import org.eclipse.swt.events.MouseMoveListener;
-//import org.eclipse.swt.events.MouseTrackListener;
-import org.eclipse.swt.graphics.Color;
-import org.eclipse.swt.graphics.Font;
-//import org.eclipse.swt.graphics.FontMetrics;
-//import org.eclipse.swt.graphics.GC;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.widgets.Canvas;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Event;
-import org.eclipse.swt.widgets.Layout;
-import org.eclipse.swt.widgets.Listener;
-import org.eclipse.swt.widgets.ToolBar;
-//import org.eclipse.ui.forms.IFormColors;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.internal.graphics.ResourceFactory;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.ui.forms.IFormColors;
import org.eclipse.ui.forms.IMessage;
import org.eclipse.ui.forms.events.IHyperlinkListener;
-import org.eclipse.ui.forms.widgets.Hyperlink;
-import org.eclipse.ui.forms.widgets.ILayoutExtension;
-import org.eclipse.ui.forms.widgets.SizeCache;
+import org.eclipse.ui.forms.widgets.*;
import org.eclipse.ui.internal.forms.IMessageToolTipManager;
import org.eclipse.ui.internal.forms.MessageManager;

@@ -864,25 +845,48 @@
// titleRegion.setHoverState(TitleRegion.STATE_NORMAL);
// }

-// RAP [rh] updateGradientImage: empty implementation
private void updateGradientImage() {
-// Rectangle rect = getBounds();
-// if (gradientImage != null) {
-// FormImages.getInstance().markFinished(gradientImage);
-// gradientImage = null;
-// }
-// if (gradientInfo != null) {
-// gradientImage = FormImages.getInstance().getGradient(getDisplay(), gradientInfo.gradientColors, gradientInfo.percents,
-// gradientInfo.vertical ? rect.height : rect.width, gradientInfo.vertical, getColor(COLOR_BASE_BG));
-// } else if (backgroundImage != null && !isBackgroundImageTiled()) {
-// gradientImage = new Image(getDisplay(), Math.max(rect.width, 1),
-// Math.max(rect.height, 1));
-// gradientImage.setBackground(getBackground());
-// GC gc = new GC(gradientImage);
-// gc.drawImage(backgroundImage, 0, 0);
-// gc.dispose();
-// }
-// setBackgroundImage(gradientImage);
+ Rectangle rect = getBounds();
+ if (gradientImage != null) {
+ FormImages.getInstance().markFinished(gradientImage);
+ gradientImage = null;
+ }
+ if (gradientInfo != null) {
+ gradientImage = FormImages.getInstance().getGradient(getDisplay(), gradientInfo.gradientColors, gradientInfo.percents,
+ gradientInfo.vertical ? rect.height : rect.width, gradientInfo.vertical, getColor(COLOR_BASE_BG));
+ } else if (backgroundImage != null && !isBackgroundImageTiled()) {
+ gradientImage = FormImages.getInstance().getBackgroundImage(rect, getBackground(), backgroundImage);
+ }
+
+ if (isSeparatorVisible()) {
+ Rectangle carea = getClientArea();
+ int width = gradientImage.getBounds().width;
+ int height = carea.height;
+ BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+ Graphics2D g2 = bufferedImage.createGraphics();
+ g2.clearRect(0, 0, width, height);
+ g2.drawImage(AWTHelper.convertToAWT(ResourceFactory.getImage Data(gradientImage)), 0,
+ 0, gradientImage.getBounds().width, gradientImage.getBounds().height,
+ AWTHelper.toAWTColor(getBackground()), null);
+
+ // bg separator
+ if (hasColor(IFormColors.H_BOTTOM_KEYLINE1))
+ g2.setColor(AWTHelper.toAWTColor(getColor(IFormColors.H_BOTT OM_KEYLINE1)));
+ else
+ g2.setColor(AWTHelper.toAWTColor(getBackground()));
+ g2.drawLine(carea.x, carea.height - 2, carea.x + carea.width - 1,
+ carea.height - 2);
+ if (hasColor(IFormColors.H_BOTTOM_KEYLINE2))
+ g2.setColor(AWTHelper.toAWTColor(getColor(IFormColors.H_BOTT OM_KEYLINE2)));
+ else
+ g2.setColor(AWTHelper.toAWTColor(getForeground()));
+ g2.drawLine(carea.x, carea.height - 1, carea.x + carea.width - 1,
+ carea.height - 1);
+
+ gradientImage = ResourceFactory.findImage(AWTHelper.convertToSWT(bufferedIma ge));
+ }
+
+ setBackgroundImage(gradientImage);
}

public boolean isSeparatorVisible() {
Index: src/org/eclipse/ui/internal/forms/widgets/FormImages.java
============================================================ =======
RCS file: /cvsroot/rt/org.eclipse.rap/runtime.ui/org.eclipse.rap.ui.fo rms/src/org/eclipse/ui/internal/forms/widgets/FormImages.jav a,v
retrieving revision 1.1
diff -u -r1.1 FormImages.java
--- src/org/eclipse/ui/internal/forms/widgets/FormImages.java 16 Apr 2008 09:44:27 -0000 1.1
+++ src/org/eclipse/ui/internal/forms/widgets/FormImages.java 9 Dec 2008 00:17:55 -0000
@@ -10,12 +10,10 @@
************************************************************ *******************/
package org.eclipse.ui.internal.forms.widgets;

-//import java.util.Arrays;
+import java.util.Arrays;
import java.util.HashMap;

-import org.eclipse.swt.graphics.Color;
-//import org.eclipse.swt.graphics.GC;
-import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.Display;

public class FormImages {
@@ -29,26 +27,27 @@

private HashMap images;
private HashMap ids;
-
+
private FormImages() {
}
-
+
private abstract class ImageIdentifier {
Display fDisplay;
Color[] fColors;
int fLength;
-
+
ImageIdentifier(Display display, Color[] colors, int length) {
fDisplay = display;
fColors = colors;
fLength = length;
}
-
+
public boolean equals(Object obj) {
if (obj instanceof ImageIdentifier) {
- ImageIdentifier id = (ImageIdentifier)obj;
+ ImageIdentifier id = (ImageIdentifier) obj;
if (id.fColors.length == fColors.length) {
- boolean result = id.fDisplay.equals(fDisplay) && id.fLength == fLength;
+ boolean result = id.fDisplay.equals(fDisplay)
+ && id.fLength == fLength;
for (int i = 0; i < fColors.length && result; i++) {
result = result && id.fColors[i].equals(fColors[i]);
}
@@ -57,7 +56,7 @@
}
return false;
}
-
+
public int hashCode() {
int hash = fDisplay.hashCode();
for (int i = 0; i < fColors.length; i++)
@@ -66,83 +65,84 @@
return hash;
}
}
-
-// RAP [rh] Unused code: was used by getGradient
-// private class SimpleImageIdentifier extends ImageIdentifier{
-// private int fTheight;
-// private int fMarginHeight;
-//
-// SimpleImageIdentifier (Display display, Color color1, Color color2,
-// int realtheight, int theight, int marginHeight) {
-// super(display, new Color[] {color1, color2}, realtheight);
-// fTheight = theight;
-// fMarginHeight = marginHeight;
-// }
-//
-// public boolean equals(Object obj) {
-// if (obj instanceof SimpleImageIdentifier) {
-// SimpleImageIdentifier id = (SimpleImageIdentifier) obj;
-// if (super.equals(obj) &&
-// id.fTheight == fTheight && id.fMarginHeight == fMarginHeight)
-// return true;
-// }
-// return false;
-// }
-//
-// public int hashCode() {
-// int hash = super.hashCode();
-// hash = hash * 7 + new Integer(fTheight).hashCode();
-// hash = hash * 7 + new Integer(fMarginHeight).hashCode();
-// return hash;
-// }
-// }
-//
-// private class ComplexImageIdentifier extends ImageIdentifier {
-// Color fBg;
-// boolean fVertical;
-// int[] fPercents;
-//
-// public ComplexImageIdentifier(Display display, Color[] colors, int length,
-// int[] percents, boolean vertical, Color bg) {
-// super(display, colors, length);
-// fBg = bg;
-// fVertical = vertical;
-// fPercents = percents;
-// }
-//
-// public boolean equals(Object obj) {
-// if (obj instanceof ComplexImageIdentifier) {
-// ComplexImageIdentifier id = (ComplexImageIdentifier) obj;
-// if (super.equals(obj) &&
-// id.fVertical == fVertical && Arrays.equals(id.fPercents, fPercents)) {
-// if ((id.fBg == null && fBg == null) ||
-// (id.fBg != null && id.fBg.equals(fBg)))
-// return true;
-// // if the only thing that isn't the same is the background color
-// // still return true if it does not matter (percents add up to 100)
-// int sum = 0;
-// for (int i = 0; i < fPercents.length; i++)
-// sum += fPercents[i];
-// if (sum >= 100)
-// return true;
-// }
-// }
-// return false;
-// }
-//
-// public int hashCode() {
-// int hash = super.hashCode();
-// hash = hash * 7 + new Boolean(fVertical).hashCode();
-// for (int i = 0; i < fPercents.length; i++)
-// hash = hash * 7 + new Integer(fPercents[i]).hashCode();
-// return hash;
-// }
-// }
-
+
+ private class SimpleImageIdentifier extends ImageIdentifier {
+ private int fTheight;
+ private int fMarginHeight;
+
+ SimpleImageIdentifier(Display display, Color color1, Color color2,
+ int realtheight, int theight, int marginHeight) {
+ super(display, new Color[] { color1, color2 }, realtheight);
+ fTheight = theight;
+ fMarginHeight = marginHeight;
+ }
+
+ public boolean equals(Object obj) {
+ if (obj instanceof SimpleImageIdentifier) {
+ SimpleImageIdentifier id = (SimpleImageIdentifier) obj;
+ if (super.equals(obj) && id.fTheight == fTheight
+ && id.fMarginHeight == fMarginHeight)
+ return true;
+ }
+ return false;
+ }
+
+ public int hashCode() {
+ int hash = super.hashCode();
+ hash = hash * 7 + new Integer(fTheight).hashCode();
+ hash = hash * 7 + new Integer(fMarginHeight).hashCode();
+ return hash;
+ }
+ }
+
+ private class ComplexImageIdentifier extends ImageIdentifier {
+ Color fBg;
+ boolean fVertical;
+ int[] fPercents;
+
+ public ComplexImageIdentifier(Display display, Color[] colors,
+ int length, int[] percents, boolean vertical, Color bg) {
+ super(display, colors, length);
+ fBg = bg;
+ fVertical = vertical;
+ fPercents = percents;
+ }
+
+ public boolean equals(Object obj) {
+ if (obj instanceof ComplexImageIdentifier) {
+ ComplexImageIdentifier id = (ComplexImageIdentifier) obj;
+ if (super.equals(obj) && id.fVertical == fVertical
+ && Arrays.equals(id.fPercents, fPercents)) {
+ if ((id.fBg == null && fBg == null)
+ || (id.fBg != null && id.fBg.equals(fBg)))
+ return true;
+ // if the only thing that isn't the same is the background
+ // color
+ // still return true if it does not matter (percents add up
+ // to 100)
+ int sum = 0;
+ for (int i = 0; i < fPercents.length; i++)
+ sum += fPercents[i];
+ if (sum >= 100)
+ return true;
+ }
+ }
+ return false;
+ }
+
+ public int hashCode() {
+ int hash = super.hashCode();
+ hash = hash * 7 + new Boolean(fVertical).hashCode();
+ for (int i = 0; i < fPercents.length; i++)
+ hash = hash * 7 + new Integer(fPercents[i]).hashCode();
+ return hash;
+ }
+ }
+
private class ImageReference {
private Image fImage;
private int fCount;
-
+
public ImageReference(Image image) {
fImage = image;
fCount = 1;
@@ -151,66 +151,76 @@
public Image getImage() {
return fImage;
}
- // returns a boolean indicating if all clients of this image are finished
+
+ // returns a boolean indicating if all clients of this image are
+ // finished
// a true result indicates the underlying image should be disposed
public boolean decCount() {
return --fCount == 0;
}
+
public void incCount() {
fCount++;
}
}
-
-// RAP [rh] missing Image-GC
-// public Image getGradient(Display display, Color color1, Color color2,
-// int realtheight, int theight, int marginHeight) {
-// checkHashMaps();
-// ImageIdentifier id = new SimpleImageIdentifier(display, color1, color2, realtheight, theight, marginHeight);
-// ImageReference result = (ImageReference) images.get(id);
-// if (result != null && !result.getImage().isDisposed()) {
-// result.incCount();
-// return result.getImage();
-// }
-// Image image = createGradient(display, color1, color2, realtheight, theight, marginHeight);
-// images.put(id, new ImageReference(image));
-// ids.put(image, id);
-// return image;
-// }
-//
-// public Image getGradient(Display display, Color[] colors, int[] percents,
-// int length, boolean vertical, Color bg) {
-// checkHashMaps();
-// ImageIdentifier id = new ComplexImageIdentifier(display, colors, length, percents, vertical, bg);
-// ImageReference result = (ImageReference) images.get(id);
-// if (result != null && !result.getImage().isDisposed()) {
-// result.incCount();
-// return result.getImage();
-// }
-// Image image = createGradient(display, colors, percents, length, vertical, bg);
-// images.put(id, new ImageReference(image));
-// ids.put(image, id);
-// return image;
-// }
-
+
+ public Image getGradient(Display display, Color color1, Color color2,
+ int realtheight, int theight, int marginHeight) {
+ checkHashMaps();
+ ImageIdentifier id = new SimpleImageIdentifier(display, color1, color2,
+ realtheight, theight, marginHeight);
+ ImageReference result = (ImageReference) images.get(id);
+ if (result != null) {
+ return result.getImage();
+ }
+ Image image = AWTHelper.createGradient(color1, color2, realtheight,
+ theight, marginHeight);
+ images.put(id, new ImageReference(image));
+ ids.put(image, id);
+ return image;
+ }
+
+ public Image getGradient(Display display, Color[] colors, int[] percents,
+ int length, boolean vertical, Color bg) {
+ checkHashMaps();
+ ImageIdentifier id = new ComplexImageIdentifier(display, colors,
+ length, percents, vertical, bg);
+ ImageReference result = (ImageReference) images.get(id);
+ if (result != null) {
+ result.incCount();
+ return result.getImage();
+ }
+ Image image = AWTHelper.createGradient(colors, percents, length,
+ vertical, bg);
+ images.put(id, new ImageReference(image));
+ ids.put(image, id);
+ return image;
+ }
+
+ public Image getBackgroundImage(Rectangle rect, Color background, Image backgroundImage) {
+ Image image = AWTHelper.createBackgroundImage(rect.width, rect.height, background, backgroundImage);
+ return image;
+ }
+
public boolean markFinished(Image image) {
checkHashMaps();
- ImageIdentifier id = (ImageIdentifier)ids.get(image);
+ ImageIdentifier id = (ImageIdentifier) ids.get(image);
if (id != null) {
ImageReference ref = (ImageReference) images.get(id);
if (ref != null) {
if (ref.decCount()) {
images.remove(id);
ids.remove(ref.getImage());
-// RAP [rh] no Image#dispose() API
-// ref.getImage().dispose();
+ // RAP [rh] no Image#dispose() API
+ // ref.getImage().dispose();
validateHashMaps();
}
return true;
}
}
// if the image was not found, dispose of it for the caller
-// RAP [rh] no Image#dispose() API
-// image.dispose();
+ // RAP [rh] no Image#dispose() API
+ // image.dispose();
return false;
}

@@ -220,85 +230,11 @@
if (ids == null)
ids = new HashMap();
}
-
+
private void validateHashMaps() {
if (images.size() == 0)
images = null;
if (ids.size() == 0)
ids = null;
}
-
-// RAP [rh] Disabled unused code, called by getGradient
-// private Image createGradient(Display display, Color color1, Color color2,
-// int realtheight, int theight, int marginHeight) {
-// Image image = new Image(display, 1, realtheight);
-// image.setBackground(color1);
-// GC gc = new GC(image);
-// gc.setBackground(color1);
-// gc.fillRectangle(0, 0, 1, realtheight);
-// gc.setForeground(color2);
-// gc.setBackground(color1);
-// gc.fillGradientRectangle(0, marginHeight + 2, 1, theight - 2, true);
-// gc.dispose();
-// return image;
-// }
-//
-// private Image createGradient(Display display, Color[] colors, int[] percents,
-// int length, boolean vertical, Color bg) {
-// int width = vertical ? 1 : length;
-// int height = vertical ? length : 1;
-// Image gradient = new Image(display, Math.max(width, 1), Math
-// .max(height, 1));
-// GC gc = new GC(gradient);
-// drawTextGradient(gc, width, height, colors, percents, vertical, bg);
-// gc.dispose();
-// return gradient;
-// }
-//
-// private void drawTextGradient(GC gc, int width, int height, Color[] colors,
-// int[] percents, boolean vertical, Color bg) {
-// final Color oldBackground = gc.getBackground();
-// if (colors.length == 1) {
-// if (colors[0] != null)
-// gc.setBackground(colors[0]);
-// gc.fillRectangle(0, 0, width, height);
-// } else {
-// final Color oldForeground = gc.getForeground();
-// Color lastColor = colors[0];
-// if (lastColor == null)
-// lastColor = oldBackground;
-// int pos = 0;
-// for (int i = 0; i < percents.length; ++i) {
-// gc.setForeground(lastColor);
-// lastColor = colors[i + 1];
-// if (lastColor == null)
-// lastColor = oldBackground;
-// gc.setBackground(lastColor);
-// if (vertical) {
-// int gradientHeight = percents[i] * height / 100;
-//
-// gc.fillGradientRectangle(0, pos, width, gradientHeight,
-// true);
-// pos += gradientHeight;
-// } else {
-// int gradientWidth = percents[i] * height / 100;
-//
-// gc.fillGradientRectangle(pos, 0, gradientWidth, height,
-// false);
-// pos += gradientWidth;
-// }
-// }
-// if (vertical && pos < height) {
-// if (bg != null)
-// gc.setBackground(bg);
-// gc.fillRectangle(0, pos, width, height - pos);
-// }
-// if (!vertical && pos < width) {
-// if (bg != null)
-// gc.setBackground(bg);
-// gc.fillRectangle(pos, 0, width - pos, height);
-// }
-// gc.setForeground(oldForeground);
-// }
-// }
}
Index: src/org/eclipse/ui/forms/widgets/Section.java
============================================================ =======
RCS file: /cvsroot/rt/org.eclipse.rap/runtime.ui/org.eclipse.rap.ui.fo rms/src/org/eclipse/ui/forms/widgets/Section.java,v
retrieving revision 1.1
diff -u -r1.1 Section.java
--- src/org/eclipse/ui/forms/widgets/Section.java 16 Apr 2008 09:44:33 -0000 1.1
+++ src/org/eclipse/ui/forms/widgets/Section.java 9 Dec 2008 00:17:55 -0000
@@ -12,23 +12,24 @@
************************************************************ *******************/
package org.eclipse.ui.forms.widgets;

+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
import java.util.Hashtable;

import org.eclipse.core.runtime.Assert;
import org.eclipse.swt.SWT;
-//import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.graphics.Color;
-//import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
-//import org.eclipse.swt.graphics.Point;
-//import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.internal.graphics.ResourceFactory;
import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Text;
+import org.eclipse.ui.internal.forms.widgets.AWTHelper;
import org.eclipse.ui.internal.forms.widgets.FormImages;
-//import org.eclipse.ui.internal.forms.widgets.FormUtil;

/**
* A variation of the expandable composite that adds optional description below
@@ -98,7 +99,11 @@
}
};
addListener(SWT.Dispose, listener);
- addListener(SWT.Resize, listener);
+ addListener(SWT.Resize, new Listener() {
+ public void handleEvent(Event event) {
+ updateTitleBackground();
+ }
+ });
}
}

@@ -110,10 +115,11 @@

protected void internalSetExpanded(boolean expanded) {
super.internalSetExpanded(expanded);
- if ((getExpansionStyle() & TITLE_BAR) != 0) {
- if (!expanded)
- super.setBackgroundImage(null);
- }
+// PAK resetting to null is not a good thing!
+// if ((getExpansionStyle() & TITLE_BAR) != 0) {
+// if (!expanded)
+// super.setBackgroundImage(null);
+// }
reflow();
}

@@ -332,139 +338,116 @@
titleColors.put(key, color);
}

-// RAP [rh] missing Paint events
-// protected void onPaint(PaintEvent e) {
-// Color bg = null;
-// Color fg = null;
-// Color border = null;
-//
-// GC gc = e.gc;
-// Image buffer = null;
-// Rectangle bounds = getClientArea();
-//
-// if ((getExpansionStyle() & TITLE_BAR) != 0) {
-// buffer = new Image(getDisplay(), bounds.width, bounds.height);
-// buffer.setBackground(getBackground());
-// gc = new GC(buffer);
-// }
-// if (titleColors != null) {
-// bg = (Color) titleColors.get(COLOR_BG);
-// fg = getTitleBarForeground();
-// border = (Color) titleColors.get(COLOR_BORDER);
-// }
-// if (bg == null)
-// bg = getBackground();
-// if (fg == null)
-// fg = getForeground();
-// if (border == null)
-// border = fg;
-// int theight = 0;
-// int gradientheight = 0;
-// int tvmargin = IGAP;
-// if ((getExpansionStyle() & TITLE_BAR) != 0) {
-// Point tsize = null;
-// Point tcsize = null;
-// if (toggle != null)
-// tsize = toggle.getSize();
-// int twidth = bounds.width - marginWidth - marginWidth;
-// if (tsize != null)
-// twidth -= tsize.x + IGAP;
-// if (getTextClient() != null)
-// tcsize = getTextClient().getSize();
-// if (tcsize != null)
-// twidth -= tcsize.x + IGAP;
-// Point size = textLabel.getSize();
-// if (tsize != null)
-// theight += Math.max(theight, tsize.y);
-// gradientheight = theight;
-// if (tcsize != null) {
-// theight = Math.max(theight, tcsize.y);
-// }
-// theight = Math.max(theight, size.y);
-// gradientheight = Math.max(gradientheight, size.y);
-// theight += tvmargin + tvmargin;
-// gradientheight += tvmargin + tvmargin;
-// } else {
-// theight = 5;
-// }
-// if ((getExpansionStyle() & TITLE_BAR) != 0) {
-// if (getBackgroundImage() == null)
-// updateHeaderImage(bg, bounds, gradientheight, theight);
-// gc.setBackground(getBackground());
-// gc.fillRectangle(bounds.x, bounds.y, bounds.width, bounds.height);
-// drawBackground(gc, bounds.x, bounds.y, bounds.width, theight);
-// if (marginWidth > 0) {
-// // fix up margins
-// gc.setBackground(getBackground());
-// gc.fillRectangle(0, 0, marginWidth, theight);
-// gc.fillRectangle(bounds.x + bounds.width - marginWidth, 0,
-// marginWidth, theight);
-// }
-// } else if (isExpanded()) {
-// gc.setForeground(bg);
-// gc.setBackground(getBackground());
-// gc.fillGradientRectangle(marginWidth, marginHeight, bounds.width
-// - marginWidth - marginWidth, theight, true);
-// }
-// gc.setBackground(getBackground());
+ protected void updateTitleBackground() {
+ Color bg = null;
+ Color fg = null;
+ Color border = null;
+
+ Rectangle bounds = getClientArea();
+ BufferedImage bufferedImage = new BufferedImage(bounds.width, bounds.height,
+ BufferedImage.TYPE_INT_RGB);
+ Graphics2D g2 = bufferedImage.createGraphics();
+ g2.setBackground(AWTHelper.toAWTColor(getBackground()));
+ g2.clearRect(0, 0, bounds.width, bounds.height);
+
+ if (titleColors != null) {
+ bg = (Color) titleColors.get(COLOR_BG);
+ fg = getTitleBarForeground();
+ border = (Color) titleColors.get(COLOR_BORDER);
+ }
+ if (bg == null)
+ bg = getBackground();
+ if (fg == null)
+ fg = getForeground();
+ if (border == null)
+ border = fg;
+ int theight = 0;
+ int gradientheight = 0;
+ int tvmargin = IGAP;
+ if ((getExpansionStyle() & TITLE_BAR) != 0) {
+ Point tsize = null;
+ Point tcsize = null;
+ if (toggle != null)
+ tsize = toggle.getSize();
+ int twidth = bounds.width - marginWidth - marginWidth;
+ if (tsize != null)
+ twidth -= tsize.x + IGAP;
+ if (getTextClient() != null)
+ tcsize = getTextClient().getSize();
+ if (tcsize != null)
+ twidth -= tcsize.x + IGAP;
+ Point size = textLabel.getSize();
+ if (tsize != null)
+ theight += Math.max(theight, tsize.y);
+ gradientheight = theight;
+ if (tcsize != null) {
+ theight = Math.max(theight, tcsize.y);
+ }
+ theight = Math.max(theight, size.y);
+ gradientheight = Math.max(gradientheight, size.y);
+ theight += tvmargin + tvmargin;
+ gradientheight += tvmargin + tvmargin;
+ } else {
+ theight = 5;
+ }
+ if ((getExpansionStyle() & TITLE_BAR) != 0) {
+ g2.setColor(AWTHelper.toAWTColor(getBackground()));
+ g2.fillRect(0, 0, bounds.width, bounds.height);
+ AWTHelper.fillGradientRectangle(g2, bg, getBackground(), 0, marginHeight + 2, bounds.width, theight - marginHeight - 4);
+ if (marginWidth > 0) {
+ // fix up margins
+ g2.setColor(AWTHelper.toAWTColor(getBackground()));
+ g2.fillRect(0, 0, marginWidth, theight);
+ g2.fillRect(bounds.width - marginWidth, 0,
+ marginWidth, theight);
+ }
+ } else if (isExpanded()) {
+ AWTHelper.fillGradientRectangle(g2, bg, getBackground(), marginWidth, marginHeight, bounds.width
+ - marginWidth - marginWidth, theight);
+ }
+ g2.setColor(AWTHelper.toAWTColor(getBackground()));
// FormUtil.setAntialias(gc, SWT.ON);
-// // repair the upper left corner
-// gc.fillPolygon(new int[] { marginWidth, marginHeight, marginWidth,
-// marginHeight + 2, marginWidth + 2, marginHeight });
-// // repair the upper right corner
-// gc.fillPolygon(new int[] { bounds.width - marginWidth - 3,
-// marginHeight, bounds.width - marginWidth, marginHeight,
-// bounds.width - marginWidth, marginHeight + 3 });
-// gc.setForeground(border);
-// if (isExpanded() || (getExpansionStyle() & TITLE_BAR) != 0) {
-// // top left curve
-// gc.drawLine(marginWidth, marginHeight + 2, marginWidth + 2,
-// marginHeight);
-// // top edge
-// gc.drawLine(marginWidth + 2, marginHeight, bounds.width
-// - marginWidth - 3, marginHeight);
-// // top right curve
-// gc.drawLine(bounds.width - marginWidth - 3, marginHeight,
-// bounds.width - marginWidth - 1, marginHeight + 2);
-// } else {
-// // collapsed short title bar
-// // top edge
-// gc.drawLine(marginWidth, marginHeight, bounds.width - 1,
-// marginHeight);
-// }
-// if ((getExpansionStyle() & TITLE_BAR) != 0 || isExpanded()) {
-// // left vertical edge gradient
-// gc.fillGradientRectangle(marginWidth, marginHeight + 2, 1,
-// gradientheight - 2, true);
-// // right vertical edge gradient
-// gc.fillGradientRectangle(bounds.width - marginWidth - 1,
-// marginHeight + 2, 1, gradientheight - 2, true);
-// }
-// if ((getExpansionStyle() & TITLE_BAR) != 0) {
-// // New in 3.3 - edge treatmant
-// gc.setForeground(getDisplay().getSystemColor(SWT.COLOR_WHITE ));
-// gc.drawPolyline(new int[] { marginWidth + 1,
-// marginHeight + gradientheight - 1, marginWidth + 1,
-// marginHeight + 2, marginWidth + 2, marginHeight + 2,
-// marginWidth + 2, marginHeight + 1,
-// bounds.width - marginWidth - 3, marginHeight + 1,
-// bounds.width - marginWidth - 3, marginHeight + 2,
-// bounds.width - marginWidth - 2, marginHeight + 2,
-// bounds.width - marginWidth - 2,
-// marginHeight + gradientheight - 1 });
-// }
-// if (buffer != null) {
-// gc.dispose();
-// e.gc.drawImage(buffer, 0, 0);
-// buffer.dispose();
-// }
-// }
-//
-// private void updateHeaderImage(Color bg, Rectangle bounds, int theight,
-// int realtheight) {
-// Image image = FormImages.getInstance().getGradient(getDisplay(), getBackground(), bg, realtheight, theight, marginHeight);
-// super.setBackgroundImage(image);
-// }
+ // repair the upper left corner
+ g2.fillPolygon(new int[] { marginWidth, marginWidth, marginWidth + 2}, new int[] { marginHeight, marginHeight + 2, marginHeight }, 3);
+ // repair the upper right corner
+ g2.fillPolygon(new int[] { bounds.width - marginWidth - 3, bounds.width - marginWidth, bounds.width - marginWidth}, new int[] {marginHeight, marginHeight, marginHeight + 3}, 3);
+ g2.setColor(AWTHelper.toAWTColor(border));
+ if (isExpanded() || (getExpansionStyle() & TITLE_BAR) != 0) {
+ // top left curve
+ g2.drawLine(marginWidth, marginHeight + 2, marginWidth + 2,
+ marginHeight);
+ // top edge
+ g2.drawLine(marginWidth + 2, marginHeight, bounds.width
+ - marginWidth - 3, marginHeight);
+ // top right curve
+ g2.drawLine(bounds.width - marginWidth - 3, marginHeight,
+ bounds.width - marginWidth - 1, marginHeight + 2);
+ } else {
+ // collapsed short title bar
+ // top edge
+ g2.drawLine(marginWidth, marginHeight, bounds.width - 1,
+ marginHeight);
+ }
+ if ((getExpansionStyle() & TITLE_BAR) != 0 || isExpanded()) {
+ // left vertical edge gradient
+ AWTHelper.fillGradientRectangle(g2, border, getBackground(), marginWidth, marginHeight + 2, 1, gradientheight - 2);
+ // right vertical edge gradient
+ AWTHelper.fillGradientRectangle(g2, border, getBackground(), bounds.width - marginWidth - 1, marginHeight + 2, 1, gradientheight - 2);
+ }
+ if ((getExpansionStyle() & TITLE_BAR) != 0) {
+ // New in 3.3 - edge treatmant
+ g2.setColor(AWTHelper.toAWTColor(getDisplay().getSystemColor (SWT.COLOR_WHITE)));
+ g2.drawPolygon(new int[] { marginWidth + 1, marginWidth + 1,marginWidth + 2,
+ marginWidth + 2, bounds.width - marginWidth - 3, bounds.width - marginWidth - 3,
+ bounds.width - marginWidth - 2, bounds.width - marginWidth - 2},
+ new int[] {marginHeight + gradientheight - 1, marginHeight + 2, marginHeight + 2, marginHeight + 1, marginHeight + 1,
+ marginHeight + 2, marginHeight + 2, marginHeight + gradientheight - 1 }, 8
+ );
+ }
+
+ g2.dispose();
+ super.setBackgroundImage(ResourceFactory.findImage(AWTHelper .convertToSWT(bufferedImage)));
+ }

/**
* Background image is used for the title gradient - does nothing.
Index: src/org/eclipse/ui/internal/forms/widgets/AWTHelper.java
============================================================ =======
RCS file: src/org/eclipse/ui/internal/forms/widgets/AWTHelper.java
diff -N src/org/eclipse/ui/internal/forms/widgets/AWTHelper.java
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ src/org/eclipse/ui/internal/forms/widgets/AWTHelper.java 1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,243 @@
+/********************************************************** *********************
+ * Copyright (c) 2008 Innoopract Informationssysteme GmbH.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Innoopract Informationssysteme GmbH - initial API and implementation
+ ************************************************************ ******************/
+
+package org.eclipse.ui.internal.forms.widgets;
+
+import java.awt.*;
+import java.awt.Rectangle;
+import java.awt.image.*;
+
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.internal.graphics.*;
+
+public class AWTHelper {
+
+ private AWTHelper() {
+ ;
+ }
+
+ public static void fillGradientRectangle(Graphics2D g2, Color color1, Color color2, int x, int y, int width, int height) {
+ java.awt.Color awtColor1 = toAWTColor(color1);
+ java.awt.Color awtColor2 = toAWTColor(color2);
+ GradientPaint paint = new GradientPaint(0, y, awtColor1, 0, height+y, awtColor2);
+ g2.setPaint(paint);
+ g2.fill(new Rectangle(x, y, width, height));
+ }
+
+ static Image createGradient(Color color1, Color color2,
+ int realtheight, int theight, int marginHeight) {
+ BufferedImage bufferedImage = new BufferedImage(1, realtheight,
+ BufferedImage.TYPE_INT_RGB);
+ Graphics2D g2 = bufferedImage.createGraphics();
+ java.awt.Color awtColor1 = new java.awt.Color(color1.getRed(), color1
+ .getGreen(), color1.getBlue());
+ java.awt.Color awtColor2 = new java.awt.Color(color2.getRed(), color2
+ .getGreen(), color2.getBlue());
+ g2.setBackground(awtColor1);
+ g2.clearRect(0, 0, 1, realtheight);
+ GradientPaint paint = new GradientPaint(0, marginHeight + 2, awtColor1,
+ 0, theight - 2, awtColor2);
+ g2.setPaint(paint);
+ g2.fill(new Rectangle(0, marginHeight + 2, 1, theight - marginHeight
+ - 4));
+ g2.dispose();
+ return ResourceFactory.findImage(convertToSWT(bufferedImage));
+ }
+
+ static Image createGradient(Color[] colors, int[] percents,
+ int length, boolean vertical, Color bg) {
+ int width = vertical ? 1 : length;
+ int height = vertical ? length : 1;
+ BufferedImage bufferedImage = new BufferedImage(Math.max(width, 1),
+ Math.max(height, 1), BufferedImage.TYPE_INT_RGB);
+ Graphics2D g2 = bufferedImage.createGraphics();
+ drawTextGradient(g2, width, height, colors, percents, vertical, bg);
+ g2.dispose();
+ return ResourceFactory.findImage(convertToSWT(bufferedImage));
+ }
+
+ static Image createBackgroundImage(int width, int height,
+ Color background, Image backgroundImage) {
+ BufferedImage bufferedImage = new BufferedImage(Math.max(width, 1),
+ Math.max(height, 1), BufferedImage.TYPE_INT_RGB);
+ Graphics2D g2 = bufferedImage.createGraphics();
+ g2.setBackground(toAWTColor(background));
+ g2.clearRect(0, 0, width, height);
+ g2.drawImage(convertToAWT(ResourceFactory.getImageData(backg roundImage)), 0,
+ 0, backgroundImage.getBounds().width, backgroundImage.getBounds().height,
+ toAWTColor(background), null);
+ return ResourceFactory.findImage(convertToSWT(bufferedImage));
+ }
+
+ private static void drawTextGradient(Graphics2D gc, int width, int height,
+ Color[] colors, int[] percents, boolean vertical, Color bg) {
+ final Color oldBackground = bg;
+ if (colors.length == 1) {
+ if (colors[0] != null)
+ gc.setColor(toAWTColor(colors[0]));
+ gc.fillRect(0, 0, width, height);
+ } else {
+ Color lastColor = colors[0];
+ if (lastColor == null)
+ lastColor = oldBackground;
+ int pos = 0;
+ for (int i = 0; i < percents.length; ++i) {
+ java.awt.Color awtColor1 = toAWTColor(lastColor);
+ lastColor = colors[i + 1];
+ if (lastColor == null)
+ lastColor = oldBackground;
+ java.awt.Color awtColor2 = toAWTColor(lastColor);
+ if (vertical) {
+ int gradientHeight = percents[i] * height / 100;
+ GradientPaint paint = new GradientPaint(0, 0, awtColor1, 1,
+ gradientHeight - pos, awtColor2);
+ gc.setPaint(paint);
+ gc.fill(new Rectangle(0, pos, 1, gradientHeight));
+ pos += gradientHeight;
+ } else {
+ int gradientWidth = percents[i] * width / 100;
+ GradientPaint paint = new GradientPaint(0, 0, awtColor1,
+ gradientWidth - pos, 1, awtColor2);
+ gc.setPaint(paint);
+ gc.fill(new Rectangle(pos, 0, gradientWidth, 1));
+ pos += gradientWidth;
+ }
+ }
+ if (vertical && pos < height) {
+ if (bg != null)
+ gc.setColor(toAWTColor(bg));
+ gc.fillRect(0, pos, width, height - pos);
+ }
+ if (!vertical && pos < width) {
+ if (bg != null)
+ gc.setColor(toAWTColor(bg));
+ gc.fillRect(pos, 0, width - pos, height);
+ }
+ }
+ }
+
+ public static java.awt.Color toAWTColor(Color color) {
+ return new java.awt.Color(color.getRed(), color.getGreen(), color
+ .getBlue());
+ }
+
+ public static ImageData convertToSWT(BufferedImage bufferedImage) {
+ if (bufferedImage.getColorModel() instanceof DirectColorModel) {
+ DirectColorModel colorModel = (DirectColorModel) bufferedImage
+ .getColorModel();
+ PaletteData palette = new PaletteData(colorModel.getRedMask(),
+ colorModel.getGreenMask(), colorModel.getBlueMask());
+ ImageData data = new ImageData(bufferedImage.getWidth(),
+ bufferedImage.getHeight(), colorModel.getPixelSize(),
+ palette);
+ WritableRaster raster = bufferedImage.getRaster();
+ int[] pixelArray = new int[3];
+ for (int y = 0; y < data.height; y++) {
+ for (int x = 0; x < data.width; x++) {
+ raster.getPixel(x, y, pixelArray);
+ int pixel = palette.getPixel(new RGB(pixelArray[0],
+ pixelArray[1], pixelArray[2]));
+ data.setPixel(x, y, pixel);
+ }
+ }
+ return data;
+ } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
+ IndexColorModel colorModel = (IndexColorModel) bufferedImage
+ .getColorModel();
+ int size = colorModel.getMapSize();
+ byte[] reds = new byte[size];
+ byte[] greens = new byte[size];
+ byte[] blues = new byte[size];
+ colorModel.getReds(reds);
+ colorModel.getGreens(greens);
+ colorModel.getBlues(blues);
+ RGB[] rgbs = new RGB[size];
+ for (int i = 0; i < rgbs.length; i++) {
+ rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF,
+ blues[i] & 0xFF);
+ }
+ PaletteData palette = new PaletteData(rgbs);
+ ImageData data = new ImageData(bufferedImage.getWidth(),
+ bufferedImage.getHeight(), colorModel.getPixelSize(),
+ palette);
+ data.transparentPixel = colorModel.getTransparentPixel();
+ WritableRaster raster = bufferedImage.getRaster();
+ int[] pixelArray = new int[1];
+ for (int y = 0; y < data.height; y++) {
+ for (int x = 0; x < data.width; x++) {
+ raster.getPixel(x, y, pixelArray);
+ data.setPixel(x, y, pixelArray[0]);
+ }
+ }
+ return data;
+ }
+ return null;
+ }
+
+ static BufferedImage convertToAWT(ImageData data) {
+ ColorModel colorModel = null;
+ PaletteData palette = data.palette;
+ if (palette.isDirect) {
+ colorModel = new DirectColorModel(data.depth, palette.redMask,
+ palette.greenMask, palette.blueMask);
+ BufferedImage bufferedImage = new BufferedImage(colorModel,
+ colorModel.createCompatibleWritableRaster(data.width,
+ data.height), false, null);
+ WritableRaster raster = bufferedImage.getRaster();
+ int[] pixelArray = new int[3];
+ for (int y = 0; y < data.height; y++) {
+ for (int x = 0; x < data.width; x++) {
+ int pixel = data.getPixel(x, y);
+ RGB rgb = palette.getRGB(pixel);
+ pixelArray[0] = rgb.red;
+ pixelArray[1] = rgb.green;
+ pixelArray[2] = rgb.blue;
+ raster.setPixels(x, y, 1, 1, pixelArray);
+ }
+ }
+ return bufferedImage;
+ } else {
+ RGB[] rgbs = palette.getRGBs();
+ byte[] red = new byte[rgbs.length];
+ byte[] green = new byte[rgbs.length];
+ byte[] blue = new byte[rgbs.length];
+ for (int i = 0; i < rgbs.length; i++) {
+ RGB rgb = rgbs[i];
+ red[i] = (byte) rgb.red;
+ green[i] = (byte) rgb.green;
+ blue[i] = (byte) rgb.blue;
+ }
+ if (data.transparentPixel != -1) {
+ colorModel = new IndexColorModel(data.depth, rgbs.length, red,
+ green, blue, data.transparentPixel);
+ } else {
+ colorModel = new IndexColorModel(data.depth, rgbs.length, red,
+ green, blue);
+ }
+ BufferedImage bufferedImage = new BufferedImage(colorModel,
+ colorModel.createCompatibleWritableRaster(data.width,
+ data.height), false, null);
+ WritableRaster raster = bufferedImage.getRaster();
+ int[] pixelArray = new int[1];
+ for (int y = 0; y < data.height; y++) {
+ for (int x = 0; x < data.width; x++) {
+ int pixel = data.getPixel(x, y);
+ pixelArray[0] = pixel;
+ raster.setPixel(x, y, pixelArray);
+ }
+ }
+ return bufferedImage;
+ }
+ }
+
+}


--nextPart1494406.mUpDUsVv1N--
Re: Form & Section Title Backgrounds [message #114861 is a reply to message #114839] Tue, 09 December 2008 04:08 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: zx.code9.com

Paul Kendall wrote:
> I have been working on support for getting the form and section title
> backgrounds working. I have used AWT classes to generate the image
> for the background and set it in the container. It all works quite well for
> me. I am attaching the patch if others would like to try it.
>
> Perhaps it could make it into some release of RAP?
>
> Cheers,
> Paul Kendall
>

Paul, it general is better to post your patches to an Eclipse bugzilla
entry as that's where it will need to go anyway if the code goes into RAP.

By the way, cool stuff!

Cheers,

~ Chris
Re: Form & Section Title Backgrounds [message #114886 is a reply to message #114861] Tue, 09 December 2008 08:53 Go to previous messageGo to next message
Paul Kendall is currently offline Paul KendallFriend
Messages: 40
Registered: July 2009
Member
Chris Aniszczyk wrote:

> Paul, it general is better to post your patches to an Eclipse bugzilla
> entry as that's where it will need to go anyway if the code goes into RAP.
>
Ok, I'll attach it to a ticket or create one if theres not already a related
one.

> By the way, cool stuff!
>
No problem.

> Cheers,
>
> ~ Chris
Paul
Re: Form & Section Title Backgrounds [message #114962 is a reply to message #114886] Tue, 09 December 2008 11:36 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: rherrmann.innoopract.com

Paul,

this bug seems to be about the same thing:
213193: [Forms] Section setTitleBarBackground
https://bugs.eclipse.org/bugs/show_bug.cgi?id=213193

Cheers,
RĂ¼diger

Paul Kendall wrote:
> Chris Aniszczyk wrote:
>
>> Paul, it general is better to post your patches to an Eclipse bugzilla
>> entry as that's where it will need to go anyway if the code goes into RAP.
>>
> Ok, I'll attach it to a ticket or create one if theres not already a related
> one.
>
>> By the way, cool stuff!
>>
> No problem.
>
>> Cheers,
>>
>> ~ Chris
> Paul
Re: Form & Section Title Backgrounds [message #115089 is a reply to message #114962] Tue, 09 December 2008 15:37 Go to previous messageGo to next message
Setya Nugdjaja is currently offline Setya NugdjajaFriend
Messages: 567
Registered: July 2009
Senior Member
> this bug seems to be about the same thing:
> 213193: [Forms] Section setTitleBarBackground
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=213193

Maybe also Bug#234087.


Setya
Re: Form & Section Title Backgrounds [message #115126 is a reply to message #115089] Tue, 09 December 2008 18:08 Go to previous message
Eclipse UserFriend
Originally posted by: paul.kendall.orionhealth.com

Setya wrote:

>> this bug seems to be about the same thing:
>> 213193: [Forms] Section setTitleBarBackground
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=213193
>
> Maybe also Bug#234087.
>
>
> Setya

I have attached the patch to 213193 as thats where I put my previous patch.
This one implements both the form header and the section header.

I see in the bug that the RAP team is not wanting to have the AWT code
because it will require an X server installed, which is fair enough. I have
attached the patch to the ticket in case it is useful for others.

Cheers,
Paul
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