This fixes the build scripts and gets everything working up to the part where
4coder actually builds the linux platform layer. I had to make a few
modifications to shared definitions, so you should make sure I didn't break
anything on Windows with these changes!
- Added clipboard change hook
- Added Process_State query for getting the state of exec_system_command operations, retrieved via Get_Process_State
- Added intersection_of and union_of for i32_Rect and f32_Rect
- Fixed what I believe is a bug in the clipboard number updating in the win32 layer (it didn't used to record the new number correctly)
- Added screen_space_to_view_space for Vec2 and f32_Rect
- Made Draw_String return the ending point, as we decided
- Added Draw_Clip_Push and Draw_Clip_Pop
- Changed the behavior of Render_Push_Clip_Sig to allow input clipping rectangles to be anything, and they are simply intersected with the parent rectangle, rather than asserted to not go outside.
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