Windows gdi skija #136
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Windows gdi skija #136
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Signed-off-by: Denis Ungemach <denis.ungemach@sap.com>
The isScrolled-method is not longer needed and thus removed
one universal method that triggers a redraw only if the control's isEnabled state changes
because x and y from the bounds are irrelevant for drawing and encourage to use the rect incorrectly for filling
and delegates to .computeDefaultSize()
if the selection started at the beginning, pressing Left did not unselect it (same for end/Right)
First PoC: Execute the class window and check the feature. ------------------------------------------- Explanation In windows create a memory device context (dc) and point a skija surface to this dc. Basically it would always be possible to draw to the surface. In the paint method, use OS.BitBlt to push the memory area to the window. Ideas: -> It would also be possible to push only specific areas to the window. So redraw of specific areas is thinkable. -> Also multiple memory dcs could be used.
- The best alternative in windows GDI to vsync is the call of DwmFlush before BitBlt
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Maven Build: Build-SWT-native-binaries-for-running-platform I had to add a new OS call: OS.DwmFlush() |
added 2 commits
March 3, 2025 11:49
- now the PoC seems fine. It should be possible now to use it in SWT as base drawing feature. Of course for this all the eventing etc must be added.
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