On 10/11/21 8:14 PM Albrecht Schlosser
On 10/11/21 4:28 AM Rob McDonald
The pinch zoom also gave deltas ...
I'll go back and set up a test program to look into
this. I needed some sign flips to make zoom work right on
my machine -- but I'm feeding it into an OpenGL zoom
parameter that may be counter intuitive.
Well, I wrote a small demo program (test/gestures.cxx). We can
certainly improve it, but it works as expected (by me) on macOS with
my latest changes in my private fork:
You can either use CMake or fltk-config to build the demo program
(Makefiles not updated).
Changes: positive angles in FL_ROTATE_GESTURE are now clockwise.
FL_ZOOM_GESTURE is in this test version not compatible with the 1.3
version. This is intentional and will be fixed in a later version.
Have fun! Feedback would be appreciated.
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