On Tue, 2008-11-04 at 08:11 +0100, Leonard Ritter wrote: > i currently struggle with implementing zooming and panning, which i > need to allow myself to browse through the song and its controls > quickly.
I suggest you have a look at tidy, they have TidyViewport and TidyFingerScroll which I used to implement the panning in libchamplain. Very convenient and has built-in nice behaviors. I change my data (map images) upon zooming so I can't help you much on that. -- Pierre-Luc Beaudoin
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