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git.ipfire.org Git - thirdparty/cups.git/blob - pdftops/OutputDev.h
1 //========================================================================
5 // Copyright 1996-2003 Glyph & Cog, LLC
7 //========================================================================
14 #ifdef USE_GCC_PRAGMAS
19 #include "CharTypes.h"
24 class GfxImageColorMap
;
25 class GfxFunctionShading
;
26 class GfxAxialShading
;
27 class GfxRadialShading
;
32 //------------------------------------------------------------------------
34 //------------------------------------------------------------------------
43 virtual ~OutputDev() {}
45 //----- get info about output device
47 // Does this device use upside-down coordinates?
48 // (Upside-down means (0,0) is the top left corner of the page.)
49 virtual GBool
upsideDown() = 0;
51 // Does this device use drawChar() or drawString()?
52 virtual GBool
useDrawChar() = 0;
54 // Does this device use tilingPatternFill()? If this returns false,
55 // tiling pattern fills will be reduced to a series of other drawing
57 virtual GBool
useTilingPatternFill() { return gFalse
; }
59 // Does this device use functionShadedFill(), axialShadedFill(), and
60 // radialShadedFill()? If this returns false, these shaded fills
61 // will be reduced to a series of other drawing operations.
62 virtual GBool
useShadedFills() { return gFalse
; }
64 // Does this device use beginType3Char/endType3Char? Otherwise,
65 // text in Type 3 fonts will be drawn with drawChar/drawString.
66 virtual GBool
interpretType3Chars() = 0;
68 // Does this device need non-text content?
69 virtual GBool
needNonText() { return gTrue
; }
71 //----- initialization and control
73 // Set default transform matrix.
74 virtual void setDefaultCTM(double *ctm
);
77 virtual GBool
startPage(int pageNum
, GfxState
*state
) { return (gTrue
); }
80 virtual void endPage() {}
82 // Dump page contents to display.
83 virtual void dump() {}
85 //----- coordinate conversion
87 // Convert between device and user coordinates.
88 virtual void cvtDevToUser(double dx
, double dy
, double *ux
, double *uy
);
89 virtual void cvtUserToDev(double ux
, double uy
, int *dx
, int *dy
);
91 double *getDefCTM() { return defCTM
; }
92 double *getDefICTM() { return defICTM
; }
95 virtual void drawLink(Link
*link
, Catalog
*catalog
) {}
97 //----- save/restore graphics state
98 virtual void saveState(GfxState
*state
) {}
99 virtual void restoreState(GfxState
*state
) {}
101 //----- update graphics state
102 virtual void updateAll(GfxState
*state
);
103 virtual void updateCTM(GfxState
*state
, double m11
, double m12
,
104 double m21
, double m22
, double m31
, double m32
) {}
105 virtual void updateLineDash(GfxState
*state
) {}
106 virtual void updateFlatness(GfxState
*state
) {}
107 virtual void updateLineJoin(GfxState
*state
) {}
108 virtual void updateLineCap(GfxState
*state
) {}
109 virtual void updateMiterLimit(GfxState
*state
) {}
110 virtual void updateLineWidth(GfxState
*state
) {}
111 virtual void updateFillColorSpace(GfxState
*state
) {}
112 virtual void updateStrokeColorSpace(GfxState
*state
) {}
113 virtual void updateFillColor(GfxState
*state
) {}
114 virtual void updateStrokeColor(GfxState
*state
) {}
115 virtual void updateBlendMode(GfxState
*state
) {}
116 virtual void updateFillOpacity(GfxState
*state
) {}
117 virtual void updateStrokeOpacity(GfxState
*state
) {}
118 virtual void updateFillOverprint(GfxState
*state
) {}
119 virtual void updateStrokeOverprint(GfxState
*state
) {}
121 //----- update text state
122 virtual void updateFont(GfxState
*state
) {}
123 virtual void updateTextMat(GfxState
*state
) {}
124 virtual void updateCharSpace(GfxState
*state
) {}
125 virtual void updateRender(GfxState
*state
) {}
126 virtual void updateRise(GfxState
*state
) {}
127 virtual void updateWordSpace(GfxState
*state
) {}
128 virtual void updateHorizScaling(GfxState
*state
) {}
129 virtual void updateTextPos(GfxState
*state
) {}
130 virtual void updateTextShift(GfxState
*state
, double shift
) {}
132 //----- path painting
133 virtual void stroke(GfxState
*state
) {}
134 virtual void fill(GfxState
*state
) {}
135 virtual void eoFill(GfxState
*state
) {}
136 virtual void tilingPatternFill(GfxState
*state
, Object
*str
,
137 int paintType
, Dict
*resDict
,
138 double *mat
, double *bbox
,
139 int x0
, int y0
, int x1
, int y1
,
140 double xStep
, double yStep
) {}
141 virtual void functionShadedFill(GfxState
*state
,
142 GfxFunctionShading
*shading
) {}
143 virtual void axialShadedFill(GfxState
*state
, GfxAxialShading
*shading
) {}
144 virtual void radialShadedFill(GfxState
*state
, GfxRadialShading
*shading
) {}
146 //----- path clipping
147 virtual void clip(GfxState
*state
) {}
148 virtual void eoClip(GfxState
*state
) {}
151 virtual void beginStringOp(GfxState
*state
) {}
152 virtual void endStringOp(GfxState
*state
) {}
153 virtual void beginString(GfxState
*state
, GString
*s
) {}
154 virtual void endString(GfxState
*state
) {}
155 virtual void drawChar(GfxState
*state
, double x
, double y
,
156 double dx
, double dy
,
157 double originX
, double originY
,
158 CharCode code
, int nBytes
, Unicode
*u
, int uLen
) {}
159 virtual void drawString(GfxState
*state
, GString
*s
) {}
160 virtual GBool
beginType3Char(GfxState
*state
, double x
, double y
,
161 double dx
, double dy
,
162 CharCode code
, Unicode
*u
, int uLen
);
163 virtual void endType3Char(GfxState
*state
) {}
164 virtual void endTextObject(GfxState
*state
) {}
166 //----- image drawing
167 virtual void drawImageMask(GfxState
*state
, Object
*ref
, Stream
*str
,
168 int width
, int height
, GBool invert
,
170 virtual void drawImage(GfxState
*state
, Object
*ref
, Stream
*str
,
171 int width
, int height
, GfxImageColorMap
*colorMap
,
172 int *maskColors
, GBool inlineImg
);
173 virtual void drawMaskedImage(GfxState
*state
, Object
*ref
, Stream
*str
,
174 int width
, int height
,
175 GfxImageColorMap
*colorMap
,
176 Stream
*maskStr
, int maskWidth
, int maskHeight
,
178 virtual void drawSoftMaskedImage(GfxState
*state
, Object
*ref
, Stream
*str
,
179 int width
, int height
,
180 GfxImageColorMap
*colorMap
,
182 int maskWidth
, int maskHeight
,
183 GfxImageColorMap
*maskColorMap
);
186 //----- OPI functions
187 virtual void opiBegin(GfxState
*state
, Dict
*opiDict
);
188 virtual void opiEnd(GfxState
*state
, Dict
*opiDict
);
191 //----- Type 3 font operators
192 virtual void type3D0(GfxState
*state
, double wx
, double wy
) {}
193 virtual void type3D1(GfxState
*state
, double wx
, double wy
,
194 double llx
, double lly
, double urx
, double ury
) {}
196 //----- PostScript XObjects
197 virtual void psXObject(Stream
*psStream
, Stream
*level1Stream
) {}
201 double defCTM
[6]; // default coordinate transform matrix
202 double defICTM
[6]; // inverse of default CTM