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Build Identifier: 20120322-1740 When you try to scroll the editor area of a GraphicalEditorWithFlyoutPalette then you cannot scroll it using the mouse wheel. The only way the mouse wheel works is to move the mouse over the scroll bar button. I've tried different approaches in order to solve this problem: 1. to add a MouseWheelHandler to the GraphicalViewer using setProperty method 1a. setting CTRL as key 1b. setting SWT.None as key 2. to use addListener method setting SWT.MouseWheel (this constant is not defined for RAP so I tried to use the raw value, 37) 3. to filter mouse wheel event using addFilter method of Display class Reproducible: Always Steps to Reproduce: 1. create an editor using GraphicalEditorWithFlyoutPalette 2. launch the application inside Firefox, Chrome or Eclipse embedded browser 3. try to scroll the editor area using mouse wheel
Created attachment 213938 [details] Patch that enables mouse wheel scroll in GEF port Unfortunately, this feature cannot be supported fully without modification to the RWT bundle. The reason is that Draw2D uses a viewport to handle scrolling. The use of the viewport allows Draw2D to scale much better than if it relied on a widget to represent the size of the scrollable area. The provided patch demonstrates one way of supporting the viewport model, but until RWT supports mouse wheel events officially, any solution will have to be in the form of a patch. If you would like to open a separate ticket on enabling Mouse Wheel events in RWT, please do. Hope this helps.
