// $Id: epsstack.h 1302 2006-06-12 21:02:01Z 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============================ */ #ifndef INC_EPSSTACK_H #define INC_EPSSTACK_H #include "fixst256.h" #include "list.h" #include "doccoord.h" #include "doccolor.h" class StringBase; // Special class for floating point values held as fixed point (would be a typedef except // we then can't overload INT32s and FIXEDPOINTs). class FIXEDPOINT { public: INT32 Long; void FromAscii(const TCHAR *FltPtString); operator INT32() const { return (INT32) Long; } FIXEDPOINT& operator= (INT32 Val) { this->Long = Val; return *this; } }; // The scaling factor used to store fixed point values on the EPSStack. const INT32 FixedPointScale = 1000; // EPSType enumerated type - all the kinds of objects that can be pushed onto the stack typedef enum { EPSTYPE_EMPTY, EPSTYPE_NONE, EPSTYPE_INT32, EPSTYPE_FIXEDPOINT, EPSTYPE_DOUBLE, EPSTYPE_STRING, EPSTYPE_NAME, EPSTYPE_COMMAND } EPSType; typedef enum { TINT_NONE, TINT_ILLUSTRATOR, TINT_COREL } TintType; // Forward reference for the EPSStack class class EPSStackItem; class EPSFilter; typedef UINT32 EPSCommand; /******************************************************************************************** > class EPSStack : public List Author: Tim_Browse (Xara Group Ltd) Created: 13/10/93 Purpose: Provides a heterogeneous stack for use when reading PostScript (EPS) files. Graeme (30/5/00) - I've replaced the array implementation that Tim originally used with a linked list. The array was originally there as a performance tweak, but increased CPU power has made this a less perceiveable gain. By using a linked list, I've made the implementation a little more error tolerant, which means that files containing stranglely placed bitmaps are now loaded. SeeAlso: EPSInputFilter; EPSStackItem ********************************************************************************************/ class EPSStack : public List { CC_DECLARE_MEMDUMP(EPSStack) public: EPSStack(); ~EPSStack(); BOOL Push(const INT32); BOOL Push(const FIXEDPOINT); BOOL Push(const double); BOOL Push(const TCHAR*, BOOL IsName = FALSE); BOOL Push(const EPSCommand Cmd); BOOL Pop(INT32 *); BOOL Pop(UINT32 *); BOOL Pop(FIXEDPOINT *); BOOL Pop(double *); BOOL Pop(TCHAR*); BOOL Pop(StringBase*); BOOL PopCmd(EPSCommand*); BOOL PopCoord(INT32*); BOOL PopCoordPair(DocCoord*); BOOL PopColour(PColourCMYK *, TintType Tint = TINT_NONE, FIXEDPOINT *TintVal = NULL, String_64 *pName = NULL); // (ChrisG 12/12/00) - Added for EPS support of RGB colours BOOL PopColourRGB (INT32 * red, INT32 * green, INT32 * blue, TintType Tint = TINT_NONE, FIXEDPOINT *TintVal = NULL, String_64 *pName = NULL); BOOL PopGrayScale(PColourCMYK *); BOOL Pop(Matrix *, BOOL); BOOL PopArray(INT32*, INT32*); BOOL Discard(UINT32 NumToDiscard = 1, BOOL EvenCommands = FALSE); BOOL DiscardArray(); void SetCoordScaleFactor(INT32 NewScaleFactor); void SetCoordOrigin(DocCoord NewOrigin); void TranslateCoordOrigin(MILLIPOINT dx, MILLIPOINT dy); void SetXformMatrix(Matrix&); void SetNoXformMatrix(); EPSType GetType(); EPSCommand ReadCmd(); void Dump(EPSFilter *); BOOL IsEmpty(); private: // Member variables. INT32 ScaleFactor; DocCoord Origin; Matrix XformMatrix; BOOL UseXformMatrix; }; #endif