- 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
- Move imageArea code into canvasWindow.
- Delete imgarea.cpp, imgarea.h, and imageArea.
- Add CCanvasWindow::ImageToCanvas and CCanvasWindow::CanvasToImage to convert the coordinates.
- Realize drawing of resizing image area.
CORE-18867
- Add DoCreate methods to CFullscreenWindow, CMiniatureWindow, and CMainWindow classes.
- Do encapsulation around mainWindow and _tWinMain.
- Add GetOpenFileName, GetSaveFileName, and ChooseColor helper methods to CMainWindow class.
- Move some code in WinMain into CMainWindow::OnCreate.
- Delay creation of CFullscreenWindow and CMiniatureWindow.
- Extend ATL CImage class as CImageDx in newly-created atlimagedx.h of mspaint.
CORE-18867
Reduce window controls and integrate to the canvas window.
- The sizeboxes are absorbed by canvasWindow.
- class CSizeboxWindow is deleted.
- Add enum CANVAS_HITTEST.
- Add getSizeBoxRect, getSizeBoxHitTest, and drawSizeBoxes helper functions in sizebox.cpp.
CORE-18867
- Wrap implementation of Mirror/Rotate, Stretch/Skew and Attributes dialog in subclasses of CDialogImpl
- Turn global variables from code that was moved into member functions into member variables
- Add global instances of all three dialog classes
- Use <global instance>.DoModal(...) instead of one-line wrappers
- Replace some TCHAR arrays with CStrings
