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1a88607387
Improve keyboard usability. - Add CCanvasWindow::MoveSelection. - Modify CMainWindow::OnKeyDown. - If Esc key is pressed, then the selection will land to canvas. - If any arrow key is pressed, then the selection will move a bit. CORE-18867
92 lines
4.1 KiB
C++
92 lines
4.1 KiB
C++
/*
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* PROJECT: PAINT for ReactOS
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* LICENSE: LGPL
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* FILE: base/applications/mspaint/canvas.h
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* PURPOSE: Providing the canvas window class
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* PROGRAMMERS: Benedikt Freisen
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*/
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#pragma once
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class CCanvasWindow : public CWindowImpl<CCanvasWindow>
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{
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public:
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DECLARE_WND_CLASS_EX(_T("ReactOSPaintCanvas"), CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW,
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COLOR_APPWORKSPACE)
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BEGIN_MSG_MAP(CCanvasWindow)
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MESSAGE_HANDLER(WM_SIZE, OnSize)
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MESSAGE_HANDLER(WM_PAINT, OnPaint)
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MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
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MESSAGE_HANDLER(WM_HSCROLL, OnHScroll)
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MESSAGE_HANDLER(WM_VSCROLL, OnVScroll)
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MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBkgnd)
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MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
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MESSAGE_HANDLER(WM_RBUTTONDOWN, OnRButtonDown)
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MESSAGE_HANDLER(WM_LBUTTONDBLCLK, OnLButtonDblClk)
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MESSAGE_HANDLER(WM_RBUTTONDBLCLK, OnRButtonDblClk)
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MESSAGE_HANDLER(WM_KEYDOWN, OnKeyDown)
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MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
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MESSAGE_HANDLER(WM_RBUTTONUP, OnRButtonUp)
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MESSAGE_HANDLER(WM_SETCURSOR, OnSetCursor)
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MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
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MESSAGE_HANDLER(WM_CANCELMODE, OnCancelMode)
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MESSAGE_HANDLER(WM_CAPTURECHANGED, OnCaptureChanged)
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MESSAGE_HANDLER(WM_CTLCOLOREDIT, OnCtlColorEdit)
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END_MSG_MAP()
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CCanvasWindow();
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BOOL m_drawing;
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VOID cancelDrawing();
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VOID finishDrawing();
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VOID Update(HWND hwndFrom);
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VOID ImageToCanvas(POINT& pt);
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VOID ImageToCanvas(RECT& rc);
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VOID CanvasToImage(POINT& pt, BOOL bZoomed = FALSE);
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VOID CanvasToImage(RECT& rc, BOOL bZoomed = FALSE);
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VOID GetImageRect(RECT& rc);
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VOID MoveSelection(INT xDelta, INT yDelta);
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protected:
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CANVAS_HITTEST m_hitSelection;
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CANVAS_HITTEST m_whereHit;
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POINT m_ptOrig; // The origin of drag start
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CRect m_rcNew;
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CANVAS_HITTEST CanvasHitTest(POINT pt);
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RECT GetBaseRect();
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VOID DoDraw(HDC hDC, RECT& rcClient, RECT& rcPaint);
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VOID OnHVScroll(WPARAM wParam, INT fnBar);
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VOID drawZoomFrame(INT mouseX, INT mouseY);
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CANVAS_HITTEST SelectionHitTest(POINT ptImage);
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VOID StartSelectionDrag(CANVAS_HITTEST hit, POINT ptImage);
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VOID SelectionDragging(POINT ptImage);
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VOID EndSelectionDrag(POINT ptImage);
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LRESULT OnSize(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnHScroll(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnVScroll(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnEraseBkgnd(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnPaint(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnRButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnLButtonDblClk(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnRButtonDblClk(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnMouseMove(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnKeyDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnLButtonUp(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnRButtonUp(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnSetCursor(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnCancelMode(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnCaptureChanged(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnCtlColorEdit(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnLRButtonDown(BOOL bLeftButton, UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnLRButtonDblClk(BOOL bLeftButton, UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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LRESULT OnLRButtonUp(BOOL bLeftButton, UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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};
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