207 lines
7.4 KiB
C++
207 lines
7.4 KiB
C++
/*******************************************************************************
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*
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* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
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*
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* TITLE: PREVWND.H
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*
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* VERSION: 1.0
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*
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* AUTHOR: ShaunIv
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*
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* DATE: 8/12/1999
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*
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* DESCRIPTION: Preview window class declaration
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*
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*******************************************************************************/
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#ifndef _PREVWND_H
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#define _PREVWND_H
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#include <windows.h>
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#include "regionde.h"
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#if defined(OLD_CRAPPY_HOME_SETUP)
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extern "C"
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{
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typedef struct _BLENDFUNCTION
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{
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BYTE BlendOp;
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BYTE BlendFlags;
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BYTE SourceConstantAlpha;
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BYTE AlphaFormat;
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}BLENDFUNCTION;
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#define AC_SRC_OVER 0x00
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typedef BOOL (WINAPI *AlphaBlendFn)( HDC, int, int, int, int, HDC, int, int, int, int, BLENDFUNCTION);
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};
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#endif //OLD_CRAPPY_HOME_SETUP
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class CWiaPreviewWindow
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{
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private:
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HWND m_hWnd;
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BLENDFUNCTION m_bfBlendFunction;
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BOOL m_bDeleteBitmap;
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BOOL m_bSizing;
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BOOL m_bAllowNullSelection;
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BOOL m_SelectionDisabled;
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HBITMAP m_hBufferBitmap; // The double buffer bitmap
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HBITMAP m_hPaintBitmap; // The scaled image
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HBITMAP m_hAlphaBitmap; // The alpha blended bitmap
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HBITMAP m_hPreviewBitmap; // This is the actual full size image
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SIZE m_BitmapSize; // Actual size of the bitmap
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HCURSOR m_hCurrentCursor; // Used when windows sends us a WM_SETCURSOR message
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HCURSOR m_hCursorArrow;
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HCURSOR m_hCursorCrossHairs;
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HCURSOR m_hCursorMove;
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HCURSOR m_hCursorSizeNS;
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HCURSOR m_hCursorSizeNeSw;
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HCURSOR m_hCursorSizeNwSe;
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HCURSOR m_hCursorSizeWE;
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HPEN m_aHandlePens[3];
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HPEN m_aBorderPens[3];
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HBRUSH m_aHandleBrushes[3];
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HPEN m_hHandleHighlight;
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HPEN m_hHandleShadow;
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RECT m_rcCurrSel;
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RECT m_rectSavedDetected; // the user can double click to snap back to the selected region
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SIZE m_Delta;
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SIZE m_ImageSize;
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SIZE m_Resolution;
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int m_MovingSel;
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UINT m_nBorderSize;
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int m_nHandleType;
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UINT m_nHandleSize;
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HPALETTE m_hHalftonePalette;
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RECT m_rcSavedImageRect;
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int m_nCurrentRect;
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bool m_bSuccessfulRegionDetection; // have we succesfully detected regions for this scan?
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HBRUSH m_hBackgroundBrush;
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bool m_bPreviewMode;
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bool m_bUserChangedSelection;
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// We store all of the pens and brushes we use in arrays. These serve as mnemonic indices.
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enum
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{
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Selected = 0,
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Unselected = 1,
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Disabled = 2,
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};
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protected:
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void DestroyBitmaps(void);
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void DrawHandle( HDC hDC, const RECT &r, int nState );
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RECT GetSizingHandleRect( const RECT &rcSel, int iWhich );
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RECT GetSelectionRect( RECT &rcSel, int iWhich );
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POINT GetCornerPoint( int iWhich );
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void DrawSizingFrame( HDC hDC, RECT &rc, bool bFocus, bool bDisabled );
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int GetHitArea( POINT &pt );
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void NormalizeRect( RECT &r );
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void SendSelChangeNotification( bool bSetUserChangedSelection=true );
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void GenerateNewBitmap(void);
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RECT GetImageRect(void);
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void Repaint( PRECT pRect, bool bErase );
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bool IsAlphaBlendEnabled(void);
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HPALETTE SetHalftonePalette( HDC hDC );
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RECT ScaleSelectionRect( const RECT &rcOriginalImage, const RECT &rcCurrentImage, const RECT &rcOriginalSel );
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RECT GetDefaultSelection(void);
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BOOL IsDefaultSelectionRect( const RECT &rc );
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int GetSelectionRectCount(void);
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void PaintWindowTitle( HDC hDC );
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void SetCursor( HCURSOR hCursor );
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bool GetOriginAndExtentInImagePixels( WORD nItem, POINT &ptOrigin, SIZE &sizeExtent );
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void CreateNewBitmaps(void);
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void DrawBitmaps(void);
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void ResizeProgressBar();
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// Region detection helper functions:
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int XConvertToBitmapCoords(int x);
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int XConvertToScreenCoords(int x);
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int YConvertToBitmapCoords(int y);
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int YConvertToScreenCoords(int y);
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POINT ConvertToBitmapCoords(POINT p);
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POINT ConvertToScreenCoords(POINT p);
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RECT ConvertToBitmapCoords(RECT r);
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RECT ConvertToScreenCoords(RECT r);
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RECT GrowRegion(RECT r, int border);
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private:
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// No implementation
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CWiaPreviewWindow(void);
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CWiaPreviewWindow( const CWiaPreviewWindow & );
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CWiaPreviewWindow &operator=( const CWiaPreviewWindow & );
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public:
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explicit CWiaPreviewWindow( HWND hWnd );
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virtual ~CWiaPreviewWindow(void);
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static BOOL RegisterClass( HINSTANCE hInstance );
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static LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM );
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protected:
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// Standard windows messages
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LRESULT OnPaint( WPARAM, LPARAM );
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LRESULT OnSetCursor( WPARAM, LPARAM );
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LRESULT OnMouseMove( WPARAM, LPARAM );
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LRESULT OnLButtonDown( WPARAM, LPARAM );
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LRESULT OnLButtonUp( WPARAM, LPARAM );
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LRESULT OnLButtonDblClk( WPARAM, LPARAM );
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LRESULT OnCreate( WPARAM, LPARAM );
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LRESULT OnSize( WPARAM, LPARAM );
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LRESULT OnGetDlgCode( WPARAM, LPARAM );
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LRESULT OnKeyDown( WPARAM, LPARAM );
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LRESULT OnSetFocus( WPARAM, LPARAM );
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LRESULT OnKillFocus( WPARAM, LPARAM );
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LRESULT OnEnable( WPARAM, LPARAM );
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LRESULT OnEraseBkgnd( WPARAM, LPARAM );
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LRESULT OnEnterSizeMove( WPARAM, LPARAM );
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LRESULT OnExitSizeMove( WPARAM, LPARAM );
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LRESULT OnSetText( WPARAM, LPARAM );
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// Our messages
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LRESULT OnClearSelection( WPARAM, LPARAM );
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LRESULT OnSetResolution( WPARAM, LPARAM );
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LRESULT OnGetResolution( WPARAM, LPARAM );
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LRESULT OnSetBitmap( WPARAM, LPARAM );
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LRESULT OnGetBitmap( WPARAM, LPARAM );
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LRESULT OnGetBorderSize( WPARAM, LPARAM );
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LRESULT OnGetHandleSize( WPARAM, LPARAM );
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LRESULT OnGetBgAlpha( WPARAM, LPARAM );
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LRESULT OnGetHandleType( WPARAM, LPARAM );
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LRESULT OnSetBorderSize( WPARAM, LPARAM );
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LRESULT OnSetHandleSize( WPARAM, LPARAM );
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LRESULT OnSetBgAlpha( WPARAM, LPARAM );
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LRESULT OnSetHandleType( WPARAM, LPARAM );
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LRESULT OnGetSelOrigin( WPARAM, LPARAM );
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LRESULT OnGetSelExtent( WPARAM, LPARAM );
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LRESULT OnSetSelOrigin( WPARAM, LPARAM );
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LRESULT OnSetSelExtent( WPARAM, LPARAM );
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LRESULT OnGetSelCount( WPARAM, LPARAM );
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LRESULT OnGetAllowNullSelection( WPARAM, LPARAM );
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LRESULT OnSetAllowNullSelection( WPARAM, LPARAM );
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LRESULT OnGetDisableSelection( WPARAM, LPARAM );
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LRESULT OnSetDisableSelection( WPARAM, LPARAM );
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LRESULT OnDetectRegions( WPARAM, LPARAM );
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LRESULT OnGetBkColor( WPARAM, LPARAM );
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LRESULT OnSetBkColor( WPARAM, LPARAM );
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LRESULT OnSetPreviewMode( WPARAM, LPARAM );
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LRESULT OnGetPreviewMode( WPARAM, LPARAM );
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LRESULT OnGetImageSize( WPARAM, LPARAM );
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LRESULT OnSetBorderStyle( WPARAM, LPARAM );
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LRESULT OnSetBorderColor( WPARAM, LPARAM );
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LRESULT OnSetHandleColor( WPARAM, LPARAM );
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LRESULT OnRefreshBitmap( WPARAM, LPARAM );
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LRESULT OnSetProgress( WPARAM, LPARAM );
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LRESULT OnGetProgress( WPARAM, LPARAM );
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LRESULT OnCtlColorStatic( WPARAM, LPARAM );
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LRESULT OnGetUserChangedSelection( WPARAM, LPARAM );
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LRESULT OnSetUserChangedSelection( WPARAM, LPARAM );
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};
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#endif
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