Ganttproject2.0,7 patch for mouse wheel behavior

readme.txt

Please see for more info.
http://sumimasen2.blogspot.com/2008/11/hack-ganttproject-for-mouse-wheel.html

gistfile1.diff

Index: D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/ChartComponentBase.java
===================================================================
--- D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/ChartComponentBase.java	(revision 118)
+++ D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/ChartComponentBase.java	(working copy)
@@ -290,7 +290,14 @@
 
     protected class MouseWheelListenerBase implements MouseWheelListener {
         public void mouseWheelMoved(MouseWheelEvent e) {
-            if (isRotationUp(e)) {
+        	// Scroll
+        	if (!e.isControlDown()) {
+        		scrollTreePane(e.getWheelRotation() * 90)
+        		return
+        	}
+        	
+        	// Zoom
+        	if (isRotationUp(e)) {
                 fireZoomOut()
             } else {
                 fireZoomIn()
@@ -313,6 +320,9 @@
             return e.getWheelRotation() < 0
         }
     }
+    
+    protected void scrollTreePane(int amount) {
+    }
 
     protected abstract AbstractChartImplementation getImplementation()
 

Index: D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/GanttGraphicArea.java
===================================================================
--- D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/GanttGraphicArea.java	(revision 118)
+++ D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/GanttGraphicArea.java	(working copy)
@@ -973,6 +973,13 @@
             setActiveInteraction(new MoveTaskInteractions(e, tasks))
         }
     }
+    
+    /**
+     * Scrolling by relative amount.
+     */
+    protected void scrollTreePane(int amount) {
+    	tree.scrollVertical(amount)
+    }
 
     private class NewChartComponentImpl extends ChartImplementationBase
             implements ChartImplementation {


Index: D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/GanttTree2.java
===================================================================
--- D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/GanttTree2.java	(revision 118)
+++ D:/MyProject/GanttProject/ganttproject/src/net/sourceforge/ganttproject/GanttTree2.java	(working copy)
@@ -558,6 +558,24 @@
                 + (vbar.isVisible() ? vbar.getWidth() : 0), y - vbar.getValue()
                 + 20)
     }
+    
+    /** 
+     * Scroll up/down
+     */
+    public void scrollVertical(int amount) {
+    	int originalValue = vbar.getValue()
+    	
+    	int newValue = originalValue + amount
+    	
+    	if (newValue < vbar.getMinimum()) {
+    		newValue = vbar.getMinimum()
+    	}
+    	else if (vbar.getMaximum() < newValue) {
+    		newValue = vbar.getMaximum()
+    	}
+    	
+    	vbar.setValue(newValue)
+    }
 
     /** Change grpahic part */
     public void setGraphicArea(GanttGraphicArea area) {