You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
263 lines
9.0 KiB
263 lines
9.0 KiB
//========================================================================
|
|
//
|
|
// OutputDev.h
|
|
//
|
|
// Copyright 1996-2003 Glyph & Cog, LLC
|
|
//
|
|
//========================================================================
|
|
|
|
#ifndef OUTPUTDEV_H
|
|
#define OUTPUTDEV_H
|
|
|
|
#include <aconf.h>
|
|
|
|
#ifdef USE_GCC_PRAGMAS
|
|
#pragma interface
|
|
#endif
|
|
|
|
#include "gtypes.h"
|
|
#include "CharTypes.h"
|
|
|
|
class GString;
|
|
class Gfx;
|
|
class GfxState;
|
|
struct GfxColor;
|
|
class GfxColorSpace;
|
|
class GfxImageColorMap;
|
|
class GfxFunctionShading;
|
|
class GfxAxialShading;
|
|
class GfxRadialShading;
|
|
class Stream;
|
|
class Links;
|
|
class Link;
|
|
class Catalog;
|
|
class Page;
|
|
class Function;
|
|
|
|
//------------------------------------------------------------------------
|
|
// OutputDev
|
|
//------------------------------------------------------------------------
|
|
|
|
class OutputDev {
|
|
public:
|
|
|
|
// Constructor.
|
|
OutputDev() {}
|
|
|
|
// Destructor.
|
|
virtual ~OutputDev() {}
|
|
|
|
//----- get info about output device
|
|
|
|
// Does this device use upside-down coordinates?
|
|
// (Upside-down means (0,0) is the top left corner of the page.)
|
|
virtual GBool upsideDown() = 0;
|
|
|
|
// Does this device use drawChar() or drawString()?
|
|
virtual GBool useDrawChar() = 0;
|
|
|
|
// Does this device use tilingPatternFill()? If this returns false,
|
|
// tiling pattern fills will be reduced to a series of other drawing
|
|
// operations.
|
|
virtual GBool useTilingPatternFill() { return gFalse; }
|
|
|
|
// Does this device use functionShadedFill(), axialShadedFill(), and
|
|
// radialShadedFill()? If this returns false, these shaded fills
|
|
// will be reduced to a series of other drawing operations.
|
|
virtual GBool useShadedFills() { return gFalse; }
|
|
|
|
// Does this device use drawForm()? If this returns false,
|
|
// form-type XObjects will be interpreted (i.e., unrolled).
|
|
virtual GBool useDrawForm() { return gFalse; }
|
|
|
|
// Does this device use beginType3Char/endType3Char? Otherwise,
|
|
// text in Type 3 fonts will be drawn with drawChar/drawString.
|
|
virtual GBool interpretType3Chars() = 0;
|
|
|
|
// Does this device need non-text content?
|
|
virtual GBool needNonText() { return gTrue; }
|
|
|
|
// Does this device require incCharCount to be called for text on
|
|
// non-shown layers?
|
|
virtual GBool needCharCount() { return gFalse; }
|
|
|
|
|
|
//----- initialization and control
|
|
|
|
// Set default transform matrix.
|
|
virtual void setDefaultCTM(double *ctm);
|
|
|
|
// Check to see if a page slice should be displayed. If this
|
|
// returns false, the page display is aborted. Typically, an
|
|
// OutputDev will use some alternate means to display the page
|
|
// before returning false.
|
|
virtual GBool checkPageSlice(Page *page, double hDPI, double vDPI,
|
|
int rotate, GBool useMediaBox, GBool crop,
|
|
int sliceX, int sliceY, int sliceW, int sliceH,
|
|
GBool printing,
|
|
GBool (*abortCheckCbk)(void *data) = NULL,
|
|
void *abortCheckCbkData = NULL)
|
|
{ return gTrue; }
|
|
|
|
// Start a page.
|
|
virtual void startPage(int pageNum, GfxState *state) {}
|
|
|
|
// End a page.
|
|
virtual void endPage() {}
|
|
|
|
// Dump page contents to display.
|
|
virtual void dump() {}
|
|
|
|
//----- coordinate conversion
|
|
|
|
// Convert between device and user coordinates.
|
|
virtual void cvtDevToUser(double dx, double dy, double *ux, double *uy);
|
|
virtual void cvtUserToDev(double ux, double uy, int *dx, int *dy);
|
|
|
|
double *getDefCTM() { return defCTM; }
|
|
double *getDefICTM() { return defICTM; }
|
|
|
|
//----- save/restore graphics state
|
|
virtual void saveState(GfxState *state) {}
|
|
virtual void restoreState(GfxState *state) {}
|
|
|
|
//----- update graphics state
|
|
virtual void updateAll(GfxState *state);
|
|
virtual void updateCTM(GfxState *state, double m11, double m12,
|
|
double m21, double m22, double m31, double m32) {}
|
|
virtual void updateLineDash(GfxState *state) {}
|
|
virtual void updateFlatness(GfxState *state) {}
|
|
virtual void updateLineJoin(GfxState *state) {}
|
|
virtual void updateLineCap(GfxState *state) {}
|
|
virtual void updateMiterLimit(GfxState *state) {}
|
|
virtual void updateLineWidth(GfxState *state) {}
|
|
virtual void updateStrokeAdjust(GfxState *state) {}
|
|
virtual void updateFillColorSpace(GfxState *state) {}
|
|
virtual void updateStrokeColorSpace(GfxState *state) {}
|
|
virtual void updateFillColor(GfxState *state) {}
|
|
virtual void updateStrokeColor(GfxState *state) {}
|
|
virtual void updateBlendMode(GfxState *state) {}
|
|
virtual void updateFillOpacity(GfxState *state) {}
|
|
virtual void updateStrokeOpacity(GfxState *state) {}
|
|
virtual void updateFillOverprint(GfxState *state) {}
|
|
virtual void updateStrokeOverprint(GfxState *state) {}
|
|
virtual void updateOverprintMode(GfxState *state) {}
|
|
virtual void updateTransfer(GfxState *state) {}
|
|
|
|
//----- update text state
|
|
virtual void updateFont(GfxState *state) {}
|
|
virtual void updateTextMat(GfxState *state) {}
|
|
virtual void updateCharSpace(GfxState *state) {}
|
|
virtual void updateRender(GfxState *state) {}
|
|
virtual void updateRise(GfxState *state) {}
|
|
virtual void updateWordSpace(GfxState *state) {}
|
|
virtual void updateHorizScaling(GfxState *state) {}
|
|
virtual void updateTextPos(GfxState *state) {}
|
|
virtual void updateTextShift(GfxState *state, double shift) {}
|
|
virtual void saveTextPos(GfxState *state) {}
|
|
virtual void restoreTextPos(GfxState *state) {}
|
|
|
|
//----- path painting
|
|
virtual void stroke(GfxState *state) {}
|
|
virtual void fill(GfxState *state) {}
|
|
virtual void eoFill(GfxState *state) {}
|
|
virtual void tilingPatternFill(GfxState *state, Gfx *gfx, Object *str,
|
|
int paintType, Dict *resDict,
|
|
double *mat, double *bbox,
|
|
int x0, int y0, int x1, int y1,
|
|
double xStep, double yStep) {}
|
|
virtual GBool functionShadedFill(GfxState *state,
|
|
GfxFunctionShading *shading)
|
|
{ return gFalse; }
|
|
virtual GBool axialShadedFill(GfxState *state, GfxAxialShading *shading)
|
|
{ return gFalse; }
|
|
virtual GBool radialShadedFill(GfxState *state, GfxRadialShading *shading)
|
|
{ return gFalse; }
|
|
|
|
//----- path clipping
|
|
virtual void clip(GfxState *state) {}
|
|
virtual void eoClip(GfxState *state) {}
|
|
virtual void clipToStrokePath(GfxState *state) {}
|
|
|
|
//----- text drawing
|
|
virtual void beginStringOp(GfxState *state) {}
|
|
virtual void endStringOp(GfxState *state) {}
|
|
virtual void beginString(GfxState *state, GString *s) {}
|
|
virtual void endString(GfxState *state) {}
|
|
virtual void drawChar(GfxState *state, double x, double y,
|
|
double dx, double dy,
|
|
double originX, double originY,
|
|
CharCode code, int nBytes, Unicode *u, int uLen) {}
|
|
virtual void drawString(GfxState *state, GString *s) {}
|
|
virtual GBool beginType3Char(GfxState *state, double x, double y,
|
|
double dx, double dy,
|
|
CharCode code, Unicode *u, int uLen);
|
|
virtual void endType3Char(GfxState *state) {}
|
|
virtual void endTextObject(GfxState *state) {}
|
|
virtual void incCharCount(int nChars) {}
|
|
|
|
//----- image drawing
|
|
virtual void drawImageMask(GfxState *state, Object *ref, Stream *str,
|
|
int width, int height, GBool invert,
|
|
GBool inlineImg);
|
|
virtual void setSoftMaskFromImageMask(GfxState *state,
|
|
Object *ref, Stream *str,
|
|
int width, int height, GBool invert,
|
|
GBool inlineImg);
|
|
virtual void drawImage(GfxState *state, Object *ref, Stream *str,
|
|
int width, int height, GfxImageColorMap *colorMap,
|
|
int *maskColors, GBool inlineImg);
|
|
virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
|
|
int width, int height,
|
|
GfxImageColorMap *colorMap,
|
|
Stream *maskStr, int maskWidth, int maskHeight,
|
|
GBool maskInvert);
|
|
virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
|
|
int width, int height,
|
|
GfxImageColorMap *colorMap,
|
|
Stream *maskStr,
|
|
int maskWidth, int maskHeight,
|
|
GfxImageColorMap *maskColorMap);
|
|
|
|
#if OPI_SUPPORT
|
|
//----- OPI functions
|
|
virtual void opiBegin(GfxState *state, Dict *opiDict);
|
|
virtual void opiEnd(GfxState *state, Dict *opiDict);
|
|
#endif
|
|
|
|
//----- Type 3 font operators
|
|
virtual void type3D0(GfxState *state, double wx, double wy) {}
|
|
virtual void type3D1(GfxState *state, double wx, double wy,
|
|
double llx, double lly, double urx, double ury) {}
|
|
|
|
//----- form XObjects
|
|
virtual void drawForm(Ref id) {}
|
|
|
|
//----- PostScript XObjects
|
|
virtual void psXObject(Stream *psStream, Stream *level1Stream) {}
|
|
|
|
//----- transparency groups and soft masks
|
|
virtual void beginTransparencyGroup(GfxState *state, double *bbox,
|
|
GfxColorSpace *blendingColorSpace,
|
|
GBool isolated, GBool knockout,
|
|
GBool forSoftMask) {}
|
|
virtual void endTransparencyGroup(GfxState *state) {}
|
|
virtual void paintTransparencyGroup(GfxState *state, double *bbox) {}
|
|
virtual void setSoftMask(GfxState *state, double *bbox, GBool alpha,
|
|
Function *transferFunc, GfxColor *backdropColor) {}
|
|
virtual void clearSoftMask(GfxState *state) {}
|
|
|
|
//----- links
|
|
virtual void processLink(Link *link) {}
|
|
|
|
#if 1 //~tmp: turn off anti-aliasing temporarily
|
|
virtual void setInShading(GBool sh) {}
|
|
#endif
|
|
|
|
private:
|
|
|
|
double defCTM[6]; // default coordinate transform matrix
|
|
double defICTM[6]; // inverse of default CTM
|
|
};
|
|
|
|
#endif
|
|
|