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1 // Copyright 2014 PDFium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
6 | |
7 #ifndef XFA_INCLUDE_FXGRAPHICS_FX_GRAPHICS_H_ | |
8 #define XFA_INCLUDE_FXGRAPHICS_FX_GRAPHICS_H_ | |
9 | |
10 #include "core/include/fpdfapi/fpdf_pageobj.h" | |
11 | |
12 typedef int FX_ERR; | |
13 #define FX_ERR_Succeeded 0 | |
14 #define FX_ERR_Indefinite -1 | |
15 #define FX_ERR_Parameter_Invalid -100 | |
16 #define FX_ERR_Property_Invalid -200 | |
17 #define FX_ERR_Intermediate_Value_Invalid -300 | |
18 #define FX_ERR_Method_Not_Supported -400 | |
19 #define FX_ERR_Out_Of_Memory -500 | |
20 | |
21 #define FX_SHADING_Steps 256 | |
22 typedef int32_t FX_DashStyle; | |
23 enum { | |
24 FX_DASHSTYLE_Solid = 0, | |
25 FX_DASHSTYLE_Dash = 1, | |
26 FX_DASHSTYLE_Dot = 2, | |
27 FX_DASHSTYLE_DashDot = 3, | |
28 FX_DASHSTYLE_DashDotDot = 4 | |
29 }; | |
30 typedef int32_t FX_StrokeAlignment; | |
31 enum { | |
32 FX_STROKEALIGNMENT_Center = 0, | |
33 FX_STROKEALIGNMENT_Inset = 1, | |
34 FX_STROKEALIGNMENT_Outset = 2, | |
35 FX_STROKEALIGNMENT_Left = 3, | |
36 FX_STROKEALIGNMENT_Right = 4 | |
37 }; | |
38 typedef int32_t FX_HatchStyle; | |
39 enum { | |
40 FX_HATCHSTYLE_Horizontal = 0, | |
41 FX_HATCHSTYLE_Vertical = 1, | |
42 FX_HATCHSTYLE_ForwardDiagonal = 2, | |
43 FX_HATCHSTYLE_BackwardDiagonal = 3, | |
44 FX_HATCHSTYLE_Cross = 4, | |
45 FX_HATCHSTYLE_DiagonalCross = 5, | |
46 FX_HATCHSTYLE_05Percent = 6, | |
47 FX_HATCHSTYLE_10Percent = 7, | |
48 FX_HATCHSTYLE_20Percent = 8, | |
49 FX_HATCHSTYLE_25Percent = 9, | |
50 FX_HATCHSTYLE_30Percent = 10, | |
51 FX_HATCHSTYLE_40Percent = 11, | |
52 FX_HATCHSTYLE_50Percent = 12, | |
53 FX_HATCHSTYLE_60Percent = 13, | |
54 FX_HATCHSTYLE_70Percent = 14, | |
55 FX_HATCHSTYLE_75Percent = 15, | |
56 FX_HATCHSTYLE_80Percent = 16, | |
57 FX_HATCHSTYLE_90Percent = 17, | |
58 FX_HATCHSTYLE_LightDownwardDiagonal = 18, | |
59 FX_HATCHSTYLE_LightUpwardDiagonal = 19, | |
60 FX_HATCHSTYLE_DarkDownwardDiagonal = 20, | |
61 FX_HATCHSTYLE_DarkUpwardDiagonal = 21, | |
62 FX_HATCHSTYLE_WideDownwardDiagonal = 22, | |
63 FX_HATCHSTYLE_WideUpwardDiagonal = 23, | |
64 FX_HATCHSTYLE_LightVertical = 24, | |
65 FX_HATCHSTYLE_LightHorizontal = 25, | |
66 FX_HATCHSTYLE_NarrowVertical = 26, | |
67 FX_HATCHSTYLE_NarrowHorizontal = 27, | |
68 FX_HATCHSTYLE_DarkVertical = 28, | |
69 FX_HATCHSTYLE_DarkHorizontal = 29, | |
70 FX_HATCHSTYLE_DashedDownwardDiagonal = 30, | |
71 FX_HATCHSTYLE_DashedUpwardDiagonal = 31, | |
72 FX_HATCHSTYLE_DashedHorizontal = 32, | |
73 FX_HATCHSTYLE_DashedVertical = 33, | |
74 FX_HATCHSTYLE_SmallConfetti = 34, | |
75 FX_HATCHSTYLE_LargeConfetti = 35, | |
76 FX_HATCHSTYLE_ZigZag = 36, | |
77 FX_HATCHSTYLE_Wave = 37, | |
78 FX_HATCHSTYLE_DiagonalBrick = 38, | |
79 FX_HATCHSTYLE_HorizontalBrick = 39, | |
80 FX_HATCHSTYLE_Weave = 40, | |
81 FX_HATCHSTYLE_Plaid = 41, | |
82 FX_HATCHSTYLE_Divot = 42, | |
83 FX_HATCHSTYLE_DottedGrid = 43, | |
84 FX_HATCHSTYLE_DottedDiamond = 44, | |
85 FX_HATCHSTYLE_Shingle = 45, | |
86 FX_HATCHSTYLE_Trellis = 46, | |
87 FX_HATCHSTYLE_Sphere = 47, | |
88 FX_HATCHSTYLE_SmallGrid = 48, | |
89 FX_HATCHSTYLE_SmallCheckerBoard = 49, | |
90 FX_HATCHSTYLE_LargeCheckerBoard = 50, | |
91 FX_HATCHSTYLE_OutlinedDiamond = 51, | |
92 FX_HATCHSTYLE_SolidDiamond = 52 | |
93 }; | |
94 typedef int32_t FX_DeviceCap; | |
95 typedef int32_t FX_FillMode; | |
96 class CFX_RenderDevice; | |
97 class CFX_GraphStateData; | |
98 class CFX_Matrix; | |
99 class CFX_DIBSource; | |
100 class CFX_DIBitmap; | |
101 class CFX_Font; | |
102 class CFX_WideString; | |
103 class CFX_PathGenerator; | |
104 class CFX_Graphics; | |
105 class CFX_Color; | |
106 class CFX_Path; | |
107 class CFX_Pattern; | |
108 class CFX_Shading; | |
109 | |
110 class CAGG_Graphics { | |
111 public: | |
112 CAGG_Graphics(); | |
113 virtual ~CAGG_Graphics(); | |
114 | |
115 FX_ERR Create(CFX_Graphics* owner, | |
116 int32_t width, | |
117 int32_t height, | |
118 FXDIB_Format format); | |
119 | |
120 private: | |
121 CFX_Graphics* m_owner; | |
122 }; | |
123 | |
124 class CFX_Graphics { | |
125 public: | |
126 CFX_Graphics(); | |
127 virtual ~CFX_Graphics(); | |
128 | |
129 FX_ERR Create(CFX_RenderDevice* renderDevice, FX_BOOL isAntialiasing = TRUE); | |
130 FX_ERR Create(int32_t width, | |
131 int32_t height, | |
132 FXDIB_Format format, | |
133 FX_BOOL isNative = TRUE, | |
134 FX_BOOL isAntialiasing = TRUE); | |
135 | |
136 FX_ERR GetDeviceCap(const int32_t capID, FX_DeviceCap& capVal); | |
137 FX_ERR IsPrinterDevice(FX_BOOL& isPrinter); | |
138 FX_ERR EnableAntialiasing(FX_BOOL isAntialiasing); | |
139 | |
140 FX_ERR SaveGraphState(); | |
141 FX_ERR RestoreGraphState(); | |
142 | |
143 FX_ERR GetLineCap(CFX_GraphStateData::LineCap& lineCap) const; | |
144 FX_ERR GetDashCount(int32_t& dashCount) const; | |
145 FX_ERR GetLineDash(FX_FLOAT& dashPhase, FX_FLOAT* dashArray) const; | |
146 FX_ERR GetLineJoin(CFX_GraphStateData::LineJoin& lineJoin) const; | |
147 FX_ERR GetMiterLimit(FX_FLOAT& miterLimit) const; | |
148 FX_ERR GetLineWidth(FX_FLOAT& lineWidth) const; | |
149 FX_ERR GetStrokeAlignment(FX_StrokeAlignment& strokeAlignment) const; | |
150 FX_ERR GetClipRect(CFX_RectF& rect) const; | |
151 CFX_Matrix* GetMatrix(); | |
152 CFX_RenderDevice* GetRenderDevice(); | |
153 | |
154 FX_ERR SetLineCap(CFX_GraphStateData::LineCap lineCap); | |
155 FX_ERR SetLineDash(FX_FLOAT dashPhase, | |
156 FX_FLOAT* dashArray, | |
157 int32_t dashCount); | |
158 FX_ERR SetLineDash(FX_DashStyle dashStyle); | |
159 FX_ERR SetLineJoin(CFX_GraphStateData::LineJoin lineJoin); | |
160 FX_ERR SetMiterLimit(FX_FLOAT miterLimit); | |
161 FX_ERR SetLineWidth(FX_FLOAT lineWidth, FX_BOOL isActOnDash = FALSE); | |
162 FX_ERR SetStrokeAlignment(FX_StrokeAlignment strokeAlignment); | |
163 FX_ERR SetStrokeColor(CFX_Color* color); | |
164 FX_ERR SetFillColor(CFX_Color* color); | |
165 FX_ERR SetClipRect(const CFX_RectF& rect); | |
166 FX_ERR SetFont(CFX_Font* font); | |
167 FX_ERR SetFontSize(const FX_FLOAT size); | |
168 FX_ERR SetFontHScale(const FX_FLOAT scale); | |
169 FX_ERR SetCharSpacing(const FX_FLOAT spacing); | |
170 FX_ERR SetTextDrawingMode(const int32_t mode); | |
171 | |
172 FX_ERR StrokePath(CFX_Path* path, CFX_Matrix* matrix = NULL); | |
173 FX_ERR FillPath(CFX_Path* path, | |
174 FX_FillMode fillMode = FXFILL_WINDING, | |
175 CFX_Matrix* matrix = NULL); | |
176 FX_ERR ClipPath(CFX_Path* path, | |
177 FX_FillMode fillMode = FXFILL_WINDING, | |
178 CFX_Matrix* matrix = NULL); | |
179 FX_ERR DrawImage(CFX_DIBSource* source, | |
180 const CFX_PointF& point, | |
181 CFX_Matrix* matrix = NULL); | |
182 FX_ERR StretchImage(CFX_DIBSource* source, | |
183 const CFX_RectF& rect, | |
184 CFX_Matrix* matrix = NULL); | |
185 FX_ERR ConcatMatrix(const CFX_Matrix* matrix); | |
186 FX_ERR ClearClip(); | |
187 FX_ERR ShowText(const CFX_PointF& point, | |
188 const CFX_WideString& text, | |
189 CFX_Matrix* matrix = NULL); | |
190 FX_ERR CalcTextRect(CFX_RectF& rect, | |
191 const CFX_WideString& text, | |
192 FX_BOOL isMultiline = FALSE, | |
193 CFX_Matrix* matrix = NULL); | |
194 FX_ERR Transfer(CFX_Graphics* graphics, const CFX_Matrix* matrix); | |
195 FX_ERR Transfer(CFX_Graphics* graphics, | |
196 FX_FLOAT srcLeft, | |
197 FX_FLOAT srcTop, | |
198 const CFX_RectF& dstRect, | |
199 const CFX_Matrix* matrix); | |
200 | |
201 FX_ERR InverseRect(const CFX_RectF& rect); | |
202 FX_ERR XorDIBitmap(const CFX_DIBitmap* srcBitmap, const CFX_RectF& rect); | |
203 FX_ERR EqvDIBitmap(const CFX_DIBitmap* srcBitmap, const CFX_RectF& rect); | |
204 | |
205 private: | |
206 FX_ERR RenderDeviceSetLineDash(FX_DashStyle dashStyle); | |
207 FX_ERR RenderDeviceStrokePath(CFX_Path* path, CFX_Matrix* matrix); | |
208 FX_ERR RenderDeviceFillPath(CFX_Path* path, | |
209 FX_FillMode fillMode, | |
210 CFX_Matrix* matrix); | |
211 FX_ERR RenderDeviceDrawImage(CFX_DIBSource* source, | |
212 const CFX_PointF& point, | |
213 CFX_Matrix* matrix); | |
214 FX_ERR RenderDeviceStretchImage(CFX_DIBSource* source, | |
215 const CFX_RectF& rect, | |
216 CFX_Matrix* matrix); | |
217 FX_ERR RenderDeviceShowText(const CFX_PointF& point, | |
218 const CFX_WideString& text, | |
219 CFX_Matrix* matrix); | |
220 | |
221 FX_ERR StrokePathWithPattern(CFX_Path* path, CFX_Matrix* matrix); | |
222 FX_ERR StrokePathWithShading(CFX_Path* path, CFX_Matrix* matrix); | |
223 | |
224 FX_ERR FillPathWithPattern(CFX_Path* path, | |
225 FX_FillMode fillMode, | |
226 CFX_Matrix* matrix); | |
227 FX_ERR FillPathWithShading(CFX_Path* path, | |
228 FX_FillMode fillMode, | |
229 CFX_Matrix* matrix); | |
230 | |
231 FX_ERR SetDIBitsWithMatrix(CFX_DIBSource* source, CFX_Matrix* matrix); | |
232 FX_ERR CalcTextInfo(const CFX_WideString& text, | |
233 FX_DWORD* charCodes, | |
234 FXTEXT_CHARPOS* charPos, | |
235 CFX_RectF& rect); | |
236 | |
237 protected: | |
238 int32_t m_type; | |
239 | |
240 private: | |
241 struct TInfo { | |
242 TInfo() | |
243 : isAntialiasing(TRUE), | |
244 strokeAlignment(FX_STROKEALIGNMENT_Center), | |
245 isActOnDash(FALSE), | |
246 strokeColor(nullptr), | |
247 fillColor(nullptr), | |
248 font(nullptr), | |
249 fontSize(40.0), | |
250 fontHScale(1.0), | |
251 fontSpacing(0.0) {} | |
252 explicit TInfo(const TInfo& info); | |
253 TInfo& operator=(const TInfo& other); | |
254 | |
255 CFX_GraphStateData graphState; | |
256 FX_BOOL isAntialiasing; | |
257 FX_StrokeAlignment strokeAlignment; | |
258 CFX_Matrix CTM; | |
259 FX_BOOL isActOnDash; | |
260 CFX_Color* strokeColor; | |
261 CFX_Color* fillColor; | |
262 CFX_Font* font; | |
263 FX_FLOAT fontSize; | |
264 FX_FLOAT fontHScale; | |
265 FX_FLOAT fontSpacing; | |
266 } m_info; | |
267 CFX_RenderDevice* m_renderDevice; | |
268 CFX_PtrArray m_infoStack; | |
269 CAGG_Graphics* m_aggGraphics; | |
270 friend class CAGG_Graphics; | |
271 }; | |
272 | |
273 class CFX_Path { | |
274 public: | |
275 CFX_Path(); | |
276 virtual ~CFX_Path(); | |
277 | |
278 FX_ERR Create(); | |
279 FX_ERR MoveTo(FX_FLOAT x, FX_FLOAT y); | |
280 FX_ERR LineTo(FX_FLOAT x, FX_FLOAT y); | |
281 FX_ERR BezierTo(FX_FLOAT ctrlX1, | |
282 FX_FLOAT ctrlY1, | |
283 FX_FLOAT ctrlX2, | |
284 FX_FLOAT ctrlY2, | |
285 FX_FLOAT toX, | |
286 FX_FLOAT toY); | |
287 FX_ERR ArcTo(FX_FLOAT left, | |
288 FX_FLOAT top, | |
289 FX_FLOAT width, | |
290 FX_FLOAT height, | |
291 FX_FLOAT startAngle, | |
292 FX_FLOAT sweepAngle); | |
293 FX_ERR Close(); | |
294 | |
295 FX_ERR AddLine(FX_FLOAT x1, FX_FLOAT y1, FX_FLOAT x2, FX_FLOAT y2); | |
296 FX_ERR AddBezier(FX_FLOAT startX, | |
297 FX_FLOAT startY, | |
298 FX_FLOAT ctrlX1, | |
299 FX_FLOAT ctrlY1, | |
300 FX_FLOAT ctrlX2, | |
301 FX_FLOAT ctrlY2, | |
302 FX_FLOAT endX, | |
303 FX_FLOAT endY); | |
304 FX_ERR AddRectangle(FX_FLOAT left, | |
305 FX_FLOAT top, | |
306 FX_FLOAT width, | |
307 FX_FLOAT height); | |
308 FX_ERR AddEllipse(FX_FLOAT left, | |
309 FX_FLOAT top, | |
310 FX_FLOAT width, | |
311 FX_FLOAT height); | |
312 FX_ERR AddEllipse(const CFX_RectF& rect); | |
313 FX_ERR AddArc(FX_FLOAT left, | |
314 FX_FLOAT top, | |
315 FX_FLOAT width, | |
316 FX_FLOAT height, | |
317 FX_FLOAT startAngle, | |
318 FX_FLOAT sweepAngle); | |
319 FX_ERR AddPie(FX_FLOAT left, | |
320 FX_FLOAT top, | |
321 FX_FLOAT width, | |
322 FX_FLOAT height, | |
323 FX_FLOAT startAngle, | |
324 FX_FLOAT sweepAngle); | |
325 FX_ERR AddSubpath(CFX_Path* path); | |
326 FX_ERR Clear(); | |
327 | |
328 FX_BOOL IsEmpty(); | |
329 CFX_PathData* GetPathData(); | |
330 | |
331 private: | |
332 CFX_PathGenerator* m_generator; | |
333 }; | |
334 | |
335 class CFX_Color { | |
336 public: | |
337 CFX_Color(); | |
338 // TODO(weili): Remove implicit conversions. Make this explicit. | |
339 CFX_Color(const FX_ARGB argb); | |
340 explicit CFX_Color(CFX_Pattern* pattern, const FX_ARGB argb = 0x0); | |
341 explicit CFX_Color(CFX_Shading* shading); | |
342 virtual ~CFX_Color(); | |
343 | |
344 FX_ERR Set(const FX_ARGB argb); | |
345 FX_ERR Set(CFX_Pattern* pattern, const FX_ARGB argb = 0x0); | |
346 FX_ERR Set(CFX_Shading* shading); | |
347 | |
348 private: | |
349 int32_t m_type; | |
350 union { | |
351 struct { | |
352 FX_ARGB argb; | |
353 CFX_Pattern* pattern; | |
354 } m_info; | |
355 CFX_Shading* m_shading; | |
356 }; | |
357 | |
358 friend class CFX_Graphics; | |
359 }; | |
360 | |
361 class CFX_Pattern { | |
362 public: | |
363 CFX_Pattern(); | |
364 virtual ~CFX_Pattern(); | |
365 | |
366 FX_ERR Create(CFX_DIBitmap* bitmap, | |
367 const FX_FLOAT xStep, | |
368 const FX_FLOAT yStep, | |
369 CFX_Matrix* matrix = NULL); | |
370 FX_ERR Create(FX_HatchStyle hatchStyle, | |
371 const FX_ARGB foreArgb, | |
372 const FX_ARGB backArgb, | |
373 CFX_Matrix* matrix = NULL); | |
374 | |
375 private: | |
376 int32_t m_type; | |
377 CFX_Matrix m_matrix; | |
378 union { | |
379 struct { | |
380 CFX_RectF rect; | |
381 FX_FLOAT xStep; | |
382 FX_FLOAT yStep; | |
383 FX_BOOL isColored; | |
384 } m_rectInfo; | |
385 struct { | |
386 CFX_DIBitmap* bitmap; | |
387 FX_FLOAT x1Step; | |
388 FX_FLOAT y1Step; | |
389 } m_bitmapInfo; | |
390 struct { | |
391 FX_HatchStyle hatchStyle; | |
392 FX_ARGB foreArgb; | |
393 FX_ARGB backArgb; | |
394 } m_hatchInfo; | |
395 }; | |
396 friend class CFX_Graphics; | |
397 }; | |
398 | |
399 class CFX_Shading { | |
400 public: | |
401 CFX_Shading(); | |
402 virtual ~CFX_Shading(); | |
403 | |
404 FX_ERR CreateAxial(const CFX_PointF& beginPoint, | |
405 const CFX_PointF& endPoint, | |
406 FX_BOOL isExtendedBegin, | |
407 FX_BOOL isExtendedEnd, | |
408 const FX_ARGB beginArgb, | |
409 const FX_ARGB endArgb); | |
410 FX_ERR CreateRadial(const CFX_PointF& beginPoint, | |
411 const CFX_PointF& endPoint, | |
412 const FX_FLOAT beginRadius, | |
413 const FX_FLOAT endRadius, | |
414 FX_BOOL isExtendedBegin, | |
415 FX_BOOL isExtendedEnd, | |
416 const FX_ARGB beginArgb, | |
417 const FX_ARGB endArgb); | |
418 | |
419 private: | |
420 FX_ERR InitArgbArray(); | |
421 | |
422 int32_t m_type; | |
423 CFX_PointF m_beginPoint; | |
424 CFX_PointF m_endPoint; | |
425 FX_FLOAT m_beginRadius; | |
426 FX_FLOAT m_endRadius; | |
427 FX_BOOL m_isExtendedBegin; | |
428 FX_BOOL m_isExtendedEnd; | |
429 FX_ARGB m_beginArgb; | |
430 FX_ARGB m_endArgb; | |
431 FX_ARGB m_argbArray[FX_SHADING_Steps]; | |
432 friend class CFX_Graphics; | |
433 }; | |
434 | |
435 #endif // XFA_INCLUDE_FXGRAPHICS_FX_GRAPHICS_H_ | |
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