// $Id: gradtbl.h 1282 2006-06-09 09:46:49Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // Classes to implement the graduation tables required for special path filling attributes #ifndef INC_GRADTBL #define INC_GRADTBL //#include "gconsts.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "gradtype.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "colmodel.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "biasgain.h" // for CProfileBiasGain (i.e. profiled fills/transparency!) - in camtypes.h [AUTOMATICALLY REMOVED] class DocColour; class ColourContext; class View; class ColourRamp; class TransparencyRamp; /******************************************************************************************** > class GradTable: public CCObject Author: Will_Cowling (Xara Group Ltd) Created: 14/9/94 Purpose: A kernel representation of a graduation table. (This is a table of 8-bpp dither pattern specifiers for GDraw) SeeAlso: GradTable32 Notes: There are now 3 base functions in GradTable and GradTable32 which build graduation tables. The tables are actually identical in meaning, but are encoded as: (a) Gavin 8bpp dither patterns, (b) RGBQUAD RGB structures, (c) COLORREF RGB values this is because the different places that use these tables demand the different formats, and converting all the code to use only one table format is non-trivial and/or inefficient. ********************************************************************************************/ class GradTable: public CCObject { CC_DECLARE_DYNCREATE(GradTable) public: GradTable(BOOL LargeTable = FALSE); ~GradTable(); void SetTableSize(BOOL LargeTable); // Set the overall size of the table INT32 GetTableLength(void) { return(m_pTable->Length); }; BOOL BuildTable(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, BOOL LargeTable = FALSE); // Set table size, and build a single-stage gradfill in it BOOL BuildTable(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, CProfileBiasGain& BiasGain, BOOL LargeTable = FALSE); // Set table size, and build a single-stage gradfill in it // This version takes into account the new profile stuff (CGS - 4/2/2000) BOOL BuildTable(DocColour &StartCol, DocColour &EndCol, ColourRamp *pColourRamp, View *ContextView, EFFECTTYPE Effect, BOOL LargeTable = FALSE); // Set table size, and build a multi-stage gradfill in it BOOL BuildHighQualityRepeatTable(DocColour &StartCol, DocColour &EndCol, ColourRamp *pColourRamp, View *ContextView, EFFECTTYPE Effect); // Set table size, and build a multi-stage gradfill in it // This version build a high quality (aliasing free) repeating fill table. // This version handles fills with colour ramps, and those without BOOL BuildHighQualityRepeatTable(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, CProfileBiasGain& BiasGain); // Set table size, and build a multi-stage gradfill in it // This version build a high quality (aliasing free) repeating fill table. // This version handles profiled fills BOOL BuildTable(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD FirstEntry, DWORD LastEntry); // Build graduations between StartCol and EndCol, filling the given // portion of the table - used for one stage of a multi-stage fill BOOL AddToTable(DocColour &NewCol, View *ContextView, DWORD Index); // Adds the given colour as entry 'Index' in the table GraduationTable *GetTable(void) { return(m_pTable); }; // Proper access function for finding our Table data member BOOL IsLarge(void) { return(m_bLargeTable); }; protected: void FillTable(DWORD StartIndex, DWORD EndIndex, PColourRGBT *StartDef, PColourRGBT *EndDef); // Internal helper function for linearly interpolating between 2 RGB values INT32 GetTableSize(GDrawContext* GD, BOOL LargeTable); // Returns the size (bytes) of the structure required INT32 GetTableLength(GDrawContext* GD, BOOL LargeTable); // Returns the size (entries) of the structure required private: BOOL m_bLargeTable; GraduationTable* m_pTable; }; /******************************************************************************************** > class TranspGradTable: public CCObject Author: Will_Cowling (Xara Group Ltd) Created: 14/9/94 Purpose: A kernel representation of a transparent graduation table. SeeAlso: - ********************************************************************************************/ class TranspGradTable: public CCObject { CC_DECLARE_DYNCREATE(TranspGradTable) public: TranspGradTable(BOOL LargeTable = FALSE); ~TranspGradTable(); void SetTableSize(BOOL LargeTable); // Set the overall size of the table BOOL BuildTable(INT32 StartTransp, INT32 EndTransp); BOOL BuildTable(INT32 StartTransp, INT32 EndTransp, CProfileBiasGain& BiasGain); BOOL BuildTable(INT32 StartTransp, INT32 EndTransp, TransparencyRamp *pTranspTable); BOOL BuildHighQualityRepeatTable(INT32 StartTransp, INT32 EndTransp, CProfileBiasGain& BiasGain); BOOL BuildHighQualityRepeatTable(INT32 StartTransp, INT32 EndTransp, TransparencyRamp *pTranspTable); BOOL BuildBitmapTable(INT32 StartTransp, INT32 EndTransp, CProfileBiasGain& BiasGain); BOOL BuildBitmapTable(INT32 StartTransp, INT32 EndTransp, TransparencyRamp *pTranspTable, CProfileBiasGain& BiasGain); TransparentGradTable* GetTable(void) const { return(m_pTable); }; BOOL IsLarge(void) const { return(m_bLargeTable); }; protected: INT32 GetTableSize(GDrawContext* GD, BOOL LargeTable); // Returns the size (bytes) of the structure required INT32 GetTableLength(GDrawContext* GD, BOOL LargeTable); // Returns the size (entries) of the structure required private: void FillSection(INT32 startindex, INT32 endindex, INT32 starttransp, INT32 endtransp); private: BOOL m_bLargeTable; TransparentGradTable* m_pTable; }; /******************************************************************************************** > class GradTable32: public CCObject Author: Will_Cowling (Xara Group Ltd) Created: 14/9/94 Purpose: A kernel representation of a 32 bpp graduation table. (This is a table of COLORREF RGB values for GDraw) SeeAlso: GradTable Notes: There are now 3 base functions in GradTable and GradTable32 which build graduation tables. The tables are actually identical in meaning, but are encoded as: (a) Gavin 8bpp dither patterns, (b) RGBQUAD RGB structures, (c) COLORREF RGB values this is because the different places that use these tables demand the different formats, and converting all the code to use only one table format is non-trivial and/or inefficient. ********************************************************************************************/ class GradTable32: public CCObject { CC_DECLARE_DYNCREATE(GradTable32) public: GradTable32(); ~GradTable32(); public: // GradTable32 sepcific methods void SetTableSize(BOOL LargeTable); // Set the overall size of the table BOOL BuildTable(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD TableSize = 0x100); // Set table size, and build a single-stage gradfill in it BOOL BuildTable(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD FirstEntry, DWORD LastEntry); // Build graduations between StartCol and EndCol, filling the given // portion of the table - used for one stage of a multi-stage fill public: // Generic graduation-building methods - produce tables of RGB values // These are used internally to build the GradTable32, but are also exported // for GRenderRegion, OSRenderRegion, OILBitmap, etc for generating // fill/contone tables with. static BOOL BuildGraduatedPalette(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD TableSize, COLORREF *pTable); // Builds a table of graduated RGBQUADs between StartCol and EndCol static BOOL BuildGraduatedPalette(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD FirstEntry, DWORD LastEntry, COLORREF *pTable); // Builds a portion of a table of graduated RGBQUADs between StartCol and EndCol static BOOL BuildGraduatedPalette(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD TableSize, RGBQUAD *pTable); // Builds a table of graduated RGBQUADs between StartCol and EndCol static BOOL BuildGraduatedPalette(DocColour &StartCol, DocColour &EndCol, // CGS View *ContextView, EFFECTTYPE Effect, DWORD TableSize, RGBQUAD *pTable, CProfileBiasGain& BiasGain); // Builds a portion of a table of graduated RGBQUADs between StartCol and EndCol static BOOL BuildGraduatedPalette(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD FirstEntry, DWORD LastEntry, RGBQUAD *pTable); // Builds a portion of a table of graduated RGBQUADs between StartCol and EndCol protected: static BOOL BuildPaletteInternal(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD FirstEntry, DWORD LastEntry, void *pTable, BOOL IsColorRef, CProfileBiasGain& BiasGain); // CGS // Internal function called by all of the above variants // --- static BOOL BuildPaletteInternalRGB(DocColour &StartCol, DocColour &EndCol, View *ContextView, DWORD FirstEntry, DWORD LastEntry, void *pTable, BOOL IsColorRef, CProfileBiasGain& BiasGain); // CGS // Internal helper function for optimised RGB Mix GradTable32 generation static BOOL BuildPaletteInternalHSV(DocColour &StartCol, DocColour &EndCol, View *ContextView, EFFECTTYPE Effect, DWORD FirstEntry, DWORD LastEntry, void *pTable, BOOL IsColorRef,CProfileBiasGain& BiasGain); // CGS // Internal helper function for optimised HSV Mix GradTable32 generation // --- static BOOL BuildPaletteInternalRGBComposite(DocColour &StartCol, DocColour &EndCol, View *ContextView, DWORD FirstEntry, DWORD LastEntry, void *pTable, BOOL IsColorRef); // Internal helper function for optimised RGB Mix GradTable32 generation }; #endif // INC_GRADTBL