reactos/base/applications/mspaint/selectionmodel.h
2017-12-09 13:36:45 +01:00

67 lines
2 KiB
C++

/*
* PROJECT: PAINT for ReactOS
* LICENSE: LGPL
* FILE: base/applications/mspaint/selectionmodel.h
* PURPOSE: Keep track of selection parameters, notify listeners
* PROGRAMMERS: Benedikt Freisen
*/
#pragma once
/* DEFINES **********************************************************/
#define ACTION_MOVE 0
#define ACTION_RESIZE_TOP_LEFT 1
#define ACTION_RESIZE_TOP 2
#define ACTION_RESIZE_TOP_RIGHT 3
#define ACTION_RESIZE_LEFT 4
#define ACTION_RESIZE_RIGHT 5
#define ACTION_RESIZE_BOTTOM_LEFT 6
#define ACTION_RESIZE_BOTTOM 7
#define ACTION_RESIZE_BOTTOM_RIGHT 8
/* CLASSES **********************************************************/
class SelectionModel
{
private:
HDC m_hDC;
RECT m_rcSrc;
RECT m_rcDest;
HBITMAP m_hBm;
HBITMAP m_hMask;
POINT *m_ptStack;
int m_iPtSP;
// void NotifySelectionChanging();
// void NotifySelectionChanged();
void NotifyRefreshNeeded();
public:
SelectionModel();
void ResetPtStack();
void PushToPtStack(LONG x, LONG y);
void CalculateBoundingBoxAndContents(HDC hDCImage);
void CalculateContents(HDC hDCImage);
void DrawBackgroundPoly(HDC hDCImage, COLORREF crBg);
void DrawBackgroundRect(HDC hDCImage, COLORREF crBg);
void DrawSelection(HDC hDCImage, COLORREF crBg = 0, BOOL bBgTransparent = FALSE);
void DrawSelectionStretched(HDC hDCImage);
void ScaleContentsToFit();
void InsertFromHBITMAP(HBITMAP hBm);
void FlipHorizontally();
void FlipVertically();
void RotateNTimes90Degrees(int iN);
HBITMAP GetBitmap();
int PtStackSize();
void DrawFramePoly(HDC hDCImage);
void SetSrcAndDestRectFromPoints(POINT& ptFrom, POINT& ptTo);
void SetSrcRectSizeToZero();
BOOL IsSrcRectSizeNonzero();
void ModifyDestRect(POINT& ptDelta, int iAction);
LONG GetDestRectWidth();
LONG GetDestRectHeight();
LONG GetDestRectLeft();
LONG GetDestRectTop();
void DrawTextToolText(HDC hDCImage, COLORREF crFg, COLORREF crBg, BOOL bBgTransparent = FALSE);
};