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add scroll wheel handler to canvas

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This commit is contained in:
Ben Loftis 2014-06-24 10:32:41 -05:00
parent 4bba1059e8
commit 2cc25a9d79
2 changed files with 27 additions and 0 deletions
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libs/canvas/canvas/canvas.h
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@ -151,6 +151,7 @@ public:
Coord height() const;
protected:
bool on_scroll_event (GdkEventScroll *);
bool on_expose_event (GdkEventExpose *);
bool on_button_press_event (GdkEventButton *);
bool on_button_release_event (GdkEventButton* event);