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154 lines
4.7 KiB
154 lines
4.7 KiB
//======================================================================== |
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// |
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// OutputDev.h |
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// |
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// Copyright 1996-2002 Glyph & Cog, LLC |
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// |
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//======================================================================== |
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#ifndef OUTPUTDEV_H |
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#define OUTPUTDEV_H |
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#include <aconf.h> |
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#ifdef USE_GCC_PRAGMAS |
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#pragma interface |
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#endif |
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#include "gtypes.h" |
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#include "CharTypes.h" |
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class GString; |
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class GfxState; |
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class GfxColorSpace; |
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class GfxImageColorMap; |
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class Stream; |
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class Link; |
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class Catalog; |
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//------------------------------------------------------------------------ |
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// OutputDev |
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//------------------------------------------------------------------------ |
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class OutputDev { |
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public: |
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// Constructor. |
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OutputDev() {} |
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// Destructor. |
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virtual ~OutputDev() {} |
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//----- get info about output device |
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// Does this device use upside-down coordinates? |
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// (Upside-down means (0,0) is the top left corner of the page.) |
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virtual GBool upsideDown() = 0; |
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// Does this device use drawChar() or drawString()? |
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virtual GBool useDrawChar() = 0; |
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// Does this device use beginType3Char/endType3Char? Otherwise, |
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// text in Type 3 fonts will be drawn with drawChar/drawString. |
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virtual GBool interpretType3Chars() = 0; |
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// Does this device need non-text content? |
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virtual GBool needNonText() { return gTrue; } |
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//----- initialization and control |
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// Set default transform matrix. |
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virtual void setDefaultCTM(double *ctm); |
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// Start a page. |
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virtual void startPage(int pageNum, GfxState *state) {} |
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// End a page. |
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virtual void endPage() {} |
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// Dump page contents to display. |
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virtual void dump() {} |
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//----- coordinate conversion |
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// Convert between device and user coordinates. |
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virtual void cvtDevToUser(int dx, int dy, double *ux, double *uy); |
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virtual void cvtUserToDev(double ux, double uy, int *dx, int *dy); |
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//----- link borders |
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virtual void drawLink(Link *link, Catalog *catalog) {} |
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//----- save/restore graphics state |
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virtual void saveState(GfxState *state) {} |
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virtual void restoreState(GfxState *state) {} |
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//----- update graphics state |
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virtual void updateAll(GfxState *state); |
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virtual void updateCTM(GfxState *state, double m11, double m12, |
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double m21, double m22, double m31, double m32) {} |
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virtual void updateLineDash(GfxState *state) {} |
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virtual void updateFlatness(GfxState *state) {} |
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virtual void updateLineJoin(GfxState *state) {} |
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virtual void updateLineCap(GfxState *state) {} |
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virtual void updateMiterLimit(GfxState *state) {} |
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virtual void updateLineWidth(GfxState *state) {} |
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virtual void updateFillColor(GfxState *state) {} |
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virtual void updateStrokeColor(GfxState *state) {} |
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virtual void updateFillOpacity(GfxState *state) {} |
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virtual void updateStrokeOpacity(GfxState *state) {} |
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//----- update text state |
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virtual void updateFont(GfxState *state) {} |
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virtual void updateTextMat(GfxState *state) {} |
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virtual void updateCharSpace(GfxState *state) {} |
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virtual void updateRender(GfxState *state) {} |
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virtual void updateRise(GfxState *state) {} |
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virtual void updateWordSpace(GfxState *state) {} |
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virtual void updateHorizScaling(GfxState *state) {} |
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virtual void updateTextPos(GfxState *state) {} |
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virtual void updateTextShift(GfxState *state, double shift) {} |
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//----- path painting |
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virtual void stroke(GfxState *state) {} |
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virtual void fill(GfxState *state) {} |
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virtual void eoFill(GfxState *state) {} |
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//----- path clipping |
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virtual void clip(GfxState *state) {} |
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virtual void eoClip(GfxState *state) {} |
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//----- text drawing |
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virtual void beginString(GfxState *state, GString *s) {} |
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virtual void endString(GfxState *state) {} |
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virtual void drawChar(GfxState *state, double x, double y, |
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double dx, double dy, |
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double originX, double originY, |
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CharCode code, Unicode *u, int uLen) {} |
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virtual void drawString(GfxState *state, GString *s) {} |
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virtual GBool beginType3Char(GfxState *state, |
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CharCode code, Unicode *u, int uLen); |
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virtual void endType3Char(GfxState *state) {} |
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//----- image drawing |
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virtual void drawImageMask(GfxState *state, Object *ref, Stream *str, |
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int width, int height, GBool invert, |
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GBool inlineImg); |
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virtual void drawImage(GfxState *state, Object *ref, Stream *str, |
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int width, int height, GfxImageColorMap *colorMap, |
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int *maskColors, GBool inlineImg); |
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//----- Type 3 font operators |
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virtual void type3D0(GfxState *state, double wx, double wy) {} |
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virtual void type3D1(GfxState *state, double wx, double wy, |
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double llx, double lly, double urx, double ury) {} |
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//----- PostScript XObjects |
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virtual void psXObject(Stream *psStream, Stream *level1Stream) {} |
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private: |
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double defCTM[6]; // default coordinate transform matrix |
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double defICTM[6]; // inverse of default CTM |
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}; |
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#endif
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