### Eclipse Workspace Patch 1.0
#P org.eclipse.swt.snippets
Index: src/org/eclipse/swt/snippets/Snippet253.java
===================================================================
RCS file: src/org/eclipse/swt/snippets/Snippet253.java
diff -N src/org/eclipse/swt/snippets/Snippet253.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ src/org/eclipse/swt/snippets/Snippet253.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,52 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * 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:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.snippets;
+
+/* 
+ * example snippet: Hello World
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.RowData;
+import org.eclipse.swt.layout.RowLayout;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet253 {
+
+public static void main (String [] args) {
+	Display display = new Display ();
+	Shell shell = new Shell(display);
+	shell.setLayout(new FillLayout());
+	Group group = new Group(shell,SWT.NONE);
+	group.setLayout(new RowLayout());
+	
+	Button b = new Button(group,SWT.PUSH);
+	b.setText("50%-Fixed");
+	b.setLayoutData(new RowData(SWT.DEFAULT,SWT.DEFAULT,1,0));
+	
+	b = new Button(group,SWT.PUSH);
+	b.setText("Fixed");
+	b.setLayoutData(new RowData(100,SWT.DEFAULT));
+	
+	b = new Button(group,SWT.PUSH);
+	b.setText("50%-Fixed");
+	b.setLayoutData(new RowData(SWT.DEFAULT,SWT.DEFAULT,1,0));
+	
+	shell.open ();
+	while (!shell.isDisposed ()) {
+		if (!display.readAndDispatch ()) display.sleep ();
+	}
+	display.dispose ();
+}
+}
#P org.eclipse.swt
Index: Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java,v
retrieving revision 1.34
diff -u -r1.34 RowLayout.java
--- Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java	9 May 2006 19:47:04 -0000	1.34
+++ Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java	11 Jan 2007 14:02:46 -0000
@@ -196,12 +196,12 @@
 	return extent;
 }
 
-Point computeSize (Control control, boolean flushCache) {
+Point computeSize (Control control, boolean flushCache, double totalWidthWeight, double totalHeightWeight, int containerWidth, int containerHeight) {
 	int wHint = SWT.DEFAULT, hHint = SWT.DEFAULT;
 	RowData data = (RowData) control.getLayoutData ();
 	if (data != null) {
-		wHint = data.width;
-		hHint = data.height;
+		wHint = Math.max(data.width, (data.widthWeight > 0)?(int)(data.widthWeight/totalWidthWeight*containerWidth):data.width );
+		hHint = Math.max(data.height, (data.heightWeight > 0)?(int)(data.heightWeight/totalHeightWeight*containerHeight):data.height);
 	}
 	return control.computeSize (wHint, hHint, flushCache);
 }
@@ -229,21 +229,46 @@
 Point layoutHorizontal (Composite composite, boolean move, boolean wrap, int width, boolean flushCache) {
 	Control [] children = composite.getChildren ();
 	int count = 0;
+	
+	Rectangle rect = composite.getClientArea ();
+	int totalWidthWeight = 0;
+	int totalHeightWeight = 0;
+	int heightToUse=rect.height - (marginTop + marginHeight * 2 + marginBottom);
+	int widthToUse=rect.width - (marginLeft + marginWidth * 2 + marginRight);
+	
 	for (int i=0; i<children.length; i++) {
 		Control control = children [i];
 		RowData data = (RowData) control.getLayoutData ();
 		if (data == null || !data.exclude) {
 			children [count++] = children [i];
+			if( data != null ) {
+				totalWidthWeight += data.widthWeight;
+				totalHeightWeight += data.heightWeight;
+				
+				if( data.height != SWT.DEFAULT && data.heightWeight == 0 ) {
+					heightToUse -= data.height;
+				}
+				
+				if( data.width != SWT.DEFAULT && data.widthWeight == 0 ) {
+					widthToUse -= data.width;
+				}
+			}
 		} 
 	}
+	
+	heightToUse -= spacing * count;
+	widthToUse -= spacing * count;
+	
 	if (count == 0) {
 		return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom);
 	}
 	int childWidth = 0, childHeight = 0, maxHeight = 0;
+	
+	
 	if (!pack) {
 		for (int i=0; i<count; i++) {
 			Control child = children [i];
-			Point size = computeSize (child, flushCache);
+			Point size = computeSize (child, flushCache,totalWidthWeight,totalHeightWeight,widthToUse,heightToUse);
 			childWidth = Math.max (childWidth, size.x);
 			childHeight = Math.max (childHeight, size.y);
 		}
@@ -251,7 +276,7 @@
 	}
 	int clientX = 0, clientY = 0;
 	if (move) {
-		Rectangle rect = composite.getClientArea ();
+		
 		clientX = rect.x;
 		clientY = rect.y;
 	}
@@ -266,7 +291,7 @@
 	for (int i=0; i<count; i++) {
 		Control child = children [i];
 		if (pack) {
-			Point size = computeSize (child, flushCache);
+			Point size = computeSize (child, flushCache,totalWidthWeight,totalHeightWeight,widthToUse,heightToUse);
 			childWidth = size.x;
 			childHeight = size.y;
 		}
@@ -336,21 +361,46 @@
 Point layoutVertical (Composite composite, boolean move, boolean wrap, int height, boolean flushCache) {
 	Control [] children = composite.getChildren ();
 	int count = 0;
+	
+	Rectangle rect = composite.getClientArea ();
+	int totalWidthWeight = 0;
+	int totalHeightWeight = 0;
+	int heightToUse=rect.height - (marginTop + marginHeight * 2 + marginBottom);
+	int widthToUse=rect.width - (marginLeft + marginWidth * 2 + marginRight);
+	
 	for (int i=0; i<children.length; i++) {
 		Control control = children [i];
 		RowData data = (RowData) control.getLayoutData ();
 		if (data == null || !data.exclude) {
 			children [count++] = children [i];
+			if( data != null ) {
+				totalWidthWeight += data.widthWeight;
+				totalHeightWeight += data.heightWeight;
+				
+				if( data.height != SWT.DEFAULT && data.heightWeight == 0 ) {
+					heightToUse -= data.height;
+				}
+				
+				if( data.width != SWT.DEFAULT && data.widthWeight == 0 ) {
+					widthToUse -= data.width;
+				}
+			}
 		} 
 	}
+	
+	heightToUse -= spacing * count;
+	widthToUse -= spacing * count;
+	
 	if (count == 0) {
 		return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom);
 	}
 	int childWidth = 0, childHeight = 0, maxWidth = 0;
+	
+	
 	if (!pack) {
 		for (int i=0; i<count; i++) {
 			Control child = children [i];
-			Point size = computeSize (child, flushCache);
+			Point size = computeSize (child, flushCache,totalWidthWeight,totalHeightWeight,widthToUse,heightToUse);
 			childWidth = Math.max (childWidth, size.x);
 			childHeight = Math.max (childHeight, size.y);
 		}
@@ -358,7 +408,7 @@
 	}
 	int clientX = 0, clientY = 0;
 	if (move) {
-		Rectangle rect = composite.getClientArea ();
+		
 		clientX = rect.x;
 		clientY = rect.y;
 	}
@@ -373,7 +423,7 @@
 	for (int i=0; i<count; i++) {
 		Control child = children [i];
 		if (pack) {
-			Point size = computeSize (child, flushCache);
+			Point size = computeSize (child, flushCache,totalWidthWeight,totalHeightWeight,widthToUse,heightToUse);
 			childWidth = size.x;
 			childHeight = size.y;
 		}
Index: Eclipse SWT/common/org/eclipse/swt/layout/RowData.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowData.java,v
retrieving revision 1.23
diff -u -r1.23 RowData.java
--- Eclipse SWT/common/org/eclipse/swt/layout/RowData.java	9 May 2006 19:47:04 -0000	1.23
+++ Eclipse SWT/common/org/eclipse/swt/layout/RowData.java	11 Jan 2007 14:02:46 -0000
@@ -67,6 +67,22 @@
 	 */
 	public boolean exclude = false;
 	
+	/**
+	 * widthWeight specifies the preferred width in comparison with the other 
+	 * controls who are children of this container. In conjunction with this 
+	 * value {@link #width} acts as the minimum value which and the maximum 
+	 * is passed into Control.computeSize(int, int, boolean) 
+	 */
+	public int widthWeight = 0;
+	
+	/**
+	 * heightWeight specifies the preferred height in comparison with the other 
+	 * controls who are children of this container. In conjunction with this 
+	 * value {@link #height} acts as the minimum value which and the maximum 
+	 * is passed into Control.computeSize(int, int, boolean) 
+	 */
+	public int heightWeight = 0;
+	
 /**
  * Constructs a new instance of RowData using
  * default values.
@@ -88,6 +104,23 @@
 }
 
 /**
+ * Constructs a new instance of RowData according to the parameters.
+ * A value of SWT.DEFAULT indicates that no minimum width or
+ * no minimum height is specified.
+ * 
+ * @param width a minimum width for the control
+ * @param height a minimum height for the control
+ * @param widthWeight the width weight of the control in comparison with other controls
+ * @param heightWeight the height weight of the control in comparison with other controls
+ */
+public RowData (int width, int height, int widthWeight, int heightWeight) {
+	this.width = width;
+	this.height = height;
+	this.widthWeight = widthWeight;
+	this.heightWeight = heightWeight;
+}
+
+/**
  * Constructs a new instance of RowData according to the parameter.
  * A value of SWT.DEFAULT indicates that no minimum width or
  * no minimum height is specified.