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e928b42758
Follow-up to #6552. There was a bug that the cropped selection image is not the shape of selection. JIRA issue: CORE-19466 - Extend SelectionModel:: DrawSelection for drawing selection flexibly. - Improve SelectionModel:: GetSelectionContents method.
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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* PROJECT: PAINT for ReactOS
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* LICENSE: LGPL-2.0-or-later (https://spdx.org/licenses/LGPL-2.0-or-later)
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* PURPOSE: Keep track of selection parameters, notify listeners
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* COPYRIGHT: Copyright 2015 Benedikt Freisen <b.freisen@gmx.net>
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* Copyright 2019-2023 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
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*/
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#pragma once
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class SelectionModel
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{
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private:
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HBITMAP m_hbmColor;
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HBITMAP m_hbmMask;
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public:
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COLORREF m_rgbBack;
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BOOL m_bShow;
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BOOL m_bContentChanged;
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CRect m_rc; // in image pixel coordinates
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POINT m_ptHit; // in image pixel coordinates
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CRect m_rcOld; // in image pixel coordinates
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SelectionModel();
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~SelectionModel();
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void SetRectFromPoints(const POINT& ptFrom, const POINT& ptTo);
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void setMask(const CRect& rc, HBITMAP hbmMask);
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BOOL TakeOff();
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void Landing();
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BOOL IsLanded() const;
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void HideSelection();
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void DeleteSelection();
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HITTEST hitTest(POINT ptCanvas);
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void drawFrameOnCanvas(HDC hCanvasDC);
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void moveSelection(INT xDelta, INT yDelta);
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HBITMAP GetSelectionContents();
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void DrawBackground(HDC hDCImage, COLORREF crBg);
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void DrawBackgroundPoly(HDC hDCImage, COLORREF crBg);
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void DrawBackgroundRect(HDC hDCImage, COLORREF crBg);
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void DrawSelection(HDC hDCImage, COLORREF crBg, BOOL bBgTransparent, const CRect& rc, HBITMAP hbm);
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void DrawSelection(HDC hDCImage, COLORREF crBg, BOOL bBgTransparent)
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{
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return DrawSelection(hDCImage, crBg, bBgTransparent, m_rc);
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}
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void DrawSelection(HDC hDCImage, COLORREF crBg, BOOL bBgTransparent, const CRect& rc)
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{
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return DrawSelection(hDCImage, crBg, bBgTransparent, rc, m_hbmColor);
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}
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void InsertFromHBITMAP(HBITMAP hbmColor, INT x = 0, INT y = 0, HBITMAP hbmMask = NULL);
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// operation
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void FlipHorizontally();
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void FlipVertically();
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void RotateNTimes90Degrees(int iN);
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void StretchSkew(int nStretchPercentX, int nStretchPercentY, int nSkewDegX, int nSkewDegY);
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void InvertSelection();
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void Dragging(HITTEST hit, POINT pt);
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void ClearMaskImage();
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void ClearColorImage();
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void NotifyContentChanged();
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void StretchSelection(BOOL bShrink);
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private:
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SelectionModel(const SelectionModel&);
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SelectionModel& operator=(const SelectionModel&);
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void ShiftPtStack(INT dx, INT dy);
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void SwapWidthAndHeight();
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};
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