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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // Palette control for use in the export/create bitmap copy dialog #ifndef INC_BMPALCTRL #define INC_BMPALCTRL // Implementation notes: The palette contol displays the palette in the // bitmap export dialog. This palette has various sort options so the user // can view the palette in diffrent ways. To avoid having to change the actual // bitmap when the user changes the sort type, this controls comunicates with // the actual palette throught an interface class, BitmapExportPaletteInterface, // which sits between the palette from the bitmap and the palette that this // control uses (throught the member variable m_Palette). Because of this, // when the palette is comunicating with other parts of camelot, it must take // into account this sorting and provide indexs into the palette in terms that // the caller expects (ie sorted or non sorted). #include "bmpalint.h" class BitmapExportOptions; class BmapPrevDlg; /************************************************************************************** > class BitmapExportPaletteControl : public CC_CLASS_MEMDUMP Author: Jonathan_Payne (Xara Group Ltd) Created: 8/11/2000 Purpose: Wraps a palette control for use in the export/create bmp copy dialog **************************************************************************************/ class BitmapExportPaletteControl : public CCObject { // Declare the class for memory tracking CC_DECLARE_MEMDUMP(BitmapExportPaletteControl); private: // Data members INT32 m_MouseOverCell; // Cell that the mouse is over (highlighed cell), -1 means none INT32 m_SelectedCell; // Cell that is selected, -1 means none BitmapExportPaletteInterface m_Palette; CWindowID m_WindowID; // Constants (that are set in the constuctor as they are DPI dpenedant) INT32 m_nPixelSize; INT32 m_nCellWidthPixels; INT32 m_nCellHeightPixels; INT32 m_nCellWidth; INT32 m_nCellHeight; INT32 m_nCellsPerLine; INT32 m_NumberOfColoursAtLastRedraw; // used so we know when to redraw the background public: // Constants enum { INVALID_COLOUR_VALUE = -1 // A value that can never be a colour index }; // Constructors / Destructors BitmapExportPaletteControl(); ~BitmapExportPaletteControl(); void Init(CWindowID wid) { m_WindowID = wid; }; // Manipulators void SetCurrentSortType(BitmapExportPaletteInterface::PaletteSortType newSortType); void SetSelectedColourToggleLocked(); void SetSelectedColourWebSafe(); bool SetSelectedColourToggleTransparent(); void SetSelectedColourToggleDeleted(); // These functions set the selected/hightlighted cell based on an index into // the real palette (so 0 is the first colour in the bitmap's palette) bool SetSelectedCell(ReDrawInfoType *pInfo, INT32 paletteIndex); bool SetHighlightedCell(ReDrawInfoType *pInfo, INT32 paletteIndex); // Access functions BitmapExportPaletteInterface::PaletteSortType GetCurrentSortType(); INT32 GetSelectedColour(); // Find out the palette index of the selected colour INT32 GetMouseOverColour(); // Find out the palette index of the selected colour bool GetSelectedColourLocked(); bool GetSelectedColourWebSafe(); bool GetSelectedColourTransparent(); bool GetSelectedColourDeleted(); // Message processing funtions void MsgMouseMove(ReDrawInfoType *pInfo); bool MsgMouseLeftButtonDown(ReDrawInfoType *pInfo); void MsgMouseRightButtonUp(ReDrawInfoType *pInfo, BmapPrevDlg *pBmapPrevDlg); // Actions void Render(ReDrawInfoType *pInfo); void RenderSoon(); void RedrawSelectedCell(ReDrawInfoType *pInfo); private: INT32 GetCellFromPos(INT32 x, INT32 y); void RenderGrey(DocRect *pPaletteSize, RenderRegion *pRender); void RenderPalette(DocRect *pPaletteSize, RenderRegion *pRender, INT32 controlHeight, DocRect* pClipRect); void GetRectForCell(INT32 cell, DocRect *rect, INT32 controlHeight); void InvalidateCell(ReDrawInfoType *pInfo, INT32 paletteIndex); void DrawCell(DocRect *rect, DocColour colour, INT32 flags, RenderRegion *pRender, bool webSafe, bool selected); bool IsColourWebSafe(BYTE r, BYTE g, BYTE b); void MakeColourWebSafe(BYTE *pColour); // These functions set the selected/hightlighted cell based on an index into // the sorted palette (so 0 is the top left cell) bool SetSelectedCellFromSortedIndex(ReDrawInfoType *pInfo, INT32 paletteIndex); bool SetHighlightedCellFromSortedIndex(ReDrawInfoType *pInfo, INT32 paletteIndex); }; #endif // INC_BMPALCTRL