- Painting the canvas is done by overlaying the multiple layers.
- Drawing each overlay is implemented as polymorphism of OOP.
- Refine the Undo/Redo mechanism.
- Some adjustments.
CORE-17969
The user will be able to move the palette window to bottom by dragging.
- Add Bar1ID registry setting.
- Move paletteWindow to top or bottom in mainWindow's WM_SIZE handling.
- Track the mouse dragging on paletteWindow.
- If the dragging is beyond the center point, then move paletteWindow.
CORE-18867
- Add CPaletteWindow::OnEraseBkgnd to avoid flickering.
- Add getColorBoxRect and drawColorBox helper functions to draw a color box.
- Add CPaletteWindow::DoHitTest helper function to do a hit test.
- Improve CPaletteWindow::OnPaint by using a memory bitmap.
- Improve readability of CMainWindow::alignChildrenToMainWindow.
CORE-18867