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Home » Eclipse Projects » Plugin Development Environment (PDE) » Zooming not workin properly in canvas
Zooming not workin properly in canvas [message #597985] Mon, 01 June 2009 06:58
Rahul is currently offline RahulFriend
Messages: 13
Registered: July 2009
Location: India
Junior Member
I have made a plug-in for selecting a wave file from a Table View and
drawing a waveform in Canvas. The user can select a point or a portion in
the waveform. For this I have created a WaveForm class which implements
Composite in which I have added a PaintListener to the canvas for drawing
the waveform and mouse listener for selection. This WaveForm class is
called by another which create a Group and hence waveform. For zooming the
waveform in x-axis I have called Composite.setMinSize with new width and
also initialized the mouse listeners with new “x” and “y” co-ordinates
values and called the listeners once again as this is a singleton model.
But I am not getting the proper selection specially after the first zoom
in. Please help, I will send the plug-in or the WaveForm class if required.


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