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 #include "../../../include/fxcrt/fx_basic.h"
8 #include "../../../include/fxge/fx_ge.h"
CFX_ClipRgn(int width,int height)9 CFX_ClipRgn::CFX_ClipRgn(int width, int height)
10 {
11 m_Type = RectI;
12 m_Box.left = m_Box.top = 0;
13 m_Box.right = width;
14 m_Box.bottom = height;
15 }
CFX_ClipRgn(const FX_RECT & rect)16 CFX_ClipRgn::CFX_ClipRgn(const FX_RECT& rect)
17 {
18 m_Type = RectI;
19 m_Box = rect;
20 }
CFX_ClipRgn(const CFX_ClipRgn & src)21 CFX_ClipRgn::CFX_ClipRgn(const CFX_ClipRgn& src)
22 {
23 m_Type = src.m_Type;
24 m_Box = src.m_Box;
25 m_Mask = src.m_Mask;
26 }
~CFX_ClipRgn()27 CFX_ClipRgn::~CFX_ClipRgn()
28 {
29 }
Reset(const FX_RECT & rect)30 void CFX_ClipRgn::Reset(const FX_RECT& rect)
31 {
32 m_Type = RectI;
33 m_Box = rect;
34 m_Mask.SetNull();
35 }
IntersectRect(const FX_RECT & rect)36 void CFX_ClipRgn::IntersectRect(const FX_RECT& rect)
37 {
38 if (m_Type == RectI) {
39 m_Box.Intersect(rect);
40 return;
41 }
42 if (m_Type == MaskF) {
43 IntersectMaskRect(rect, m_Box, m_Mask);
44 return;
45 }
46 }
IntersectMaskRect(FX_RECT rect,FX_RECT mask_rect,CFX_DIBitmapRef Mask)47 void CFX_ClipRgn::IntersectMaskRect(FX_RECT rect, FX_RECT mask_rect, CFX_DIBitmapRef Mask)
48 {
49 const CFX_DIBitmap* mask_dib = Mask;
50 m_Type = MaskF;
51 m_Box = rect;
52 m_Box.Intersect(mask_rect);
53 if (m_Box.IsEmpty()) {
54 m_Type = RectI;
55 return;
56 } else if (m_Box == mask_rect) {
57 m_Mask = Mask;
58 return;
59 }
60 CFX_DIBitmap* new_dib = m_Mask.New();
61 if (!new_dib) {
62 return;
63 }
64 new_dib->Create(m_Box.Width(), m_Box.Height(), FXDIB_8bppMask);
65 for (int row = m_Box.top; row < m_Box.bottom; row ++) {
66 FX_LPBYTE dest_scan = new_dib->GetBuffer() + new_dib->GetPitch() * (row - m_Box.top);
67 FX_LPBYTE src_scan = mask_dib->GetBuffer() + mask_dib->GetPitch() * (row - mask_rect.top);
68 for (int col = m_Box.left; col < m_Box.right; col ++) {
69 dest_scan[col - m_Box.left] = src_scan[col - mask_rect.left];
70 }
71 }
72 }
IntersectMaskF(int left,int top,CFX_DIBitmapRef Mask)73 void CFX_ClipRgn::IntersectMaskF(int left, int top, CFX_DIBitmapRef Mask)
74 {
75 const CFX_DIBitmap* mask_dib = Mask;
76 ASSERT(mask_dib->GetFormat() == FXDIB_8bppMask);
77 FX_RECT mask_box(left, top, left + mask_dib->GetWidth(), top + mask_dib->GetHeight());
78 if (m_Type == RectI) {
79 IntersectMaskRect(m_Box, mask_box, Mask);
80 return;
81 }
82 if (m_Type == MaskF) {
83 FX_RECT new_box = m_Box;
84 new_box.Intersect(mask_box);
85 if (new_box.IsEmpty()) {
86 m_Type = RectI;
87 m_Mask.SetNull();
88 m_Box = new_box;
89 return;
90 }
91 CFX_DIBitmapRef new_mask;
92 CFX_DIBitmap* new_dib = new_mask.New();
93 if (!new_dib) {
94 return;
95 }
96 new_dib->Create(new_box.Width(), new_box.Height(), FXDIB_8bppMask);
97 const CFX_DIBitmap* old_dib = m_Mask;
98 for (int row = new_box.top; row < new_box.bottom; row ++) {
99 FX_LPBYTE old_scan = old_dib->GetBuffer() + (row - m_Box.top) * old_dib->GetPitch();
100 FX_LPBYTE mask_scan = mask_dib->GetBuffer() + (row - top) * mask_dib->GetPitch();
101 FX_LPBYTE new_scan = new_dib->GetBuffer() + (row - new_box.top) * new_dib->GetPitch();
102 for (int col = new_box.left; col < new_box.right; col ++) {
103 new_scan[col - new_box.left] = old_scan[col - m_Box.left] * mask_scan[col - left] / 255;
104 }
105 }
106 m_Box = new_box;
107 m_Mask = new_mask;
108 return;
109 }
110 ASSERT(FALSE);
111 }
CFX_PathData()112 CFX_PathData::CFX_PathData()
113 {
114 m_PointCount = m_AllocCount = 0;
115 m_pPoints = NULL;
116 }
~CFX_PathData()117 CFX_PathData::~CFX_PathData()
118 {
119 if (m_pPoints) {
120 FX_Free(m_pPoints);
121 }
122 }
SetPointCount(int nPoints)123 FX_BOOL CFX_PathData::SetPointCount(int nPoints)
124 {
125 m_PointCount = nPoints;
126 if (m_AllocCount < nPoints) {
127 if (m_pPoints) {
128 FX_Free(m_pPoints);
129 m_pPoints = NULL;
130 }
131 m_pPoints = FX_Alloc(FX_PATHPOINT, nPoints);
132 if (!m_pPoints) {
133 return FALSE;
134 }
135 m_AllocCount = nPoints;
136 }
137 return TRUE;
138 }
AllocPointCount(int nPoints)139 FX_BOOL CFX_PathData::AllocPointCount(int nPoints)
140 {
141 if (m_AllocCount < nPoints) {
142 FX_PATHPOINT* pNewBuf = FX_Alloc(FX_PATHPOINT, nPoints);
143 if (!pNewBuf) {
144 return FALSE;
145 }
146 if (m_PointCount) {
147 FXSYS_memcpy32(pNewBuf, m_pPoints, m_PointCount * sizeof(FX_PATHPOINT));
148 }
149 if (m_pPoints) {
150 FX_Free(m_pPoints);
151 }
152 m_pPoints = pNewBuf;
153 m_AllocCount = nPoints;
154 }
155 return TRUE;
156 }
CFX_PathData(const CFX_PathData & src)157 CFX_PathData::CFX_PathData(const CFX_PathData& src)
158 {
159 m_pPoints = NULL;
160 m_PointCount = m_AllocCount = src.m_PointCount;
161 m_pPoints = FX_Alloc(FX_PATHPOINT, src.m_PointCount);
162 if (!m_pPoints) {
163 return;
164 }
165 FXSYS_memcpy32(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
166 }
TrimPoints(int nPoints)167 void CFX_PathData::TrimPoints(int nPoints)
168 {
169 if (m_PointCount <= nPoints) {
170 return;
171 }
172 SetPointCount(nPoints);
173 }
AddPointCount(int addPoints)174 FX_BOOL CFX_PathData::AddPointCount(int addPoints)
175 {
176 int new_count = m_PointCount + addPoints;
177 if (!AllocPointCount(new_count)) {
178 return FALSE;
179 }
180 m_PointCount = new_count;
181 return TRUE;
182 }
Append(const CFX_PathData * pSrc,const CFX_AffineMatrix * pMatrix)183 FX_BOOL CFX_PathData::Append(const CFX_PathData* pSrc, const CFX_AffineMatrix* pMatrix)
184 {
185 int old_count = m_PointCount;
186 if (!AddPointCount(pSrc->m_PointCount)) {
187 return FALSE;
188 }
189 FXSYS_memcpy32(m_pPoints + old_count, pSrc->m_pPoints, pSrc->m_PointCount * sizeof(FX_PATHPOINT));
190 if (pMatrix == NULL) {
191 return TRUE;
192 }
193 for (int i = 0; i < pSrc->m_PointCount; i ++) {
194 pMatrix->Transform(m_pPoints[old_count + i].m_PointX, m_pPoints[old_count + i].m_PointY);
195 }
196 return TRUE;
197 }
SetPoint(int index,FX_FLOAT x,FX_FLOAT y,int flag)198 void CFX_PathData::SetPoint(int index, FX_FLOAT x, FX_FLOAT y, int flag)
199 {
200 ASSERT(index < m_PointCount);
201 m_pPoints[index].m_PointX = x;
202 m_pPoints[index].m_PointY = y;
203 m_pPoints[index].m_Flag = flag;
204 }
AppendRect(FX_FLOAT left,FX_FLOAT bottom,FX_FLOAT right,FX_FLOAT top)205 FX_BOOL CFX_PathData::AppendRect(FX_FLOAT left, FX_FLOAT bottom, FX_FLOAT right, FX_FLOAT top)
206 {
207 int old_count = m_PointCount;
208 if (!AddPointCount(5)) {
209 return FALSE;
210 }
211 FX_PATHPOINT* pPoints = m_pPoints + old_count;
212 pPoints[0].m_PointX = pPoints[1].m_PointX = pPoints[4].m_PointX = left;
213 pPoints[2].m_PointX = pPoints[3].m_PointX = right;
214 pPoints[0].m_PointY = pPoints[3].m_PointY = pPoints[4].m_PointY = bottom;
215 pPoints[1].m_PointY = pPoints[2].m_PointY = top;
216 pPoints[0].m_Flag = FXPT_MOVETO;
217 pPoints[1].m_Flag = pPoints[2].m_Flag = pPoints[3].m_Flag = FXPT_LINETO;
218 pPoints[4].m_Flag = FXPT_LINETO | FXPT_CLOSEFIGURE;
219 return TRUE;
220 }
GetBoundingBox() const221 CFX_FloatRect CFX_PathData::GetBoundingBox() const
222 {
223 CFX_FloatRect rect;
224 if (m_PointCount) {
225 rect.InitRect(m_pPoints[0].m_PointX, m_pPoints[0].m_PointY);
226 for (int i = 1; i < m_PointCount; i ++) {
227 rect.UpdateRect(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
228 }
229 }
230 return rect;
231 }
_UpdateLineEndPoints(CFX_FloatRect & rect,FX_FLOAT start_x,FX_FLOAT start_y,FX_FLOAT end_x,FX_FLOAT end_y,FX_FLOAT hw)232 static void _UpdateLineEndPoints(CFX_FloatRect& rect, FX_FLOAT start_x, FX_FLOAT start_y, FX_FLOAT end_x, FX_FLOAT end_y,
233 FX_FLOAT hw)
234 {
235 if (start_x == end_x) {
236 if (start_y == end_y) {
237 rect.UpdateRect(end_x + hw, end_y + hw);
238 rect.UpdateRect(end_x - hw, end_y - hw);
239 return;
240 }
241 FX_FLOAT point_y;
242 if (end_y < start_y) {
243 point_y = end_y - hw;
244 } else {
245 point_y = end_y + hw;
246 }
247 rect.UpdateRect(end_x + hw, point_y);
248 rect.UpdateRect(end_x - hw, point_y);
249 return;
250 } else if (start_y == end_y) {
251 FX_FLOAT point_x;
252 if (end_x < start_x) {
253 point_x = end_x - hw;
254 } else {
255 point_x = end_x + hw;
256 }
257 rect.UpdateRect(point_x, end_y + hw);
258 rect.UpdateRect(point_x, end_y - hw);
259 return;
260 }
261 FX_FLOAT dx = end_x - start_x;
262 FX_FLOAT dy = end_y - start_y;
263 FX_FLOAT ll = FXSYS_sqrt2(dx, dy);
264 FX_FLOAT mx = end_x + hw * dx / ll;
265 FX_FLOAT my = end_y + hw * dy / ll;
266 FX_FLOAT dx1 = hw * dy / ll;
267 FX_FLOAT dy1 = hw * dx / ll;
268 rect.UpdateRect(mx - dx1, my + dy1);
269 rect.UpdateRect(mx + dx1, my - dy1);
270 }
_UpdateLineJoinPoints(CFX_FloatRect & rect,FX_FLOAT start_x,FX_FLOAT start_y,FX_FLOAT middle_x,FX_FLOAT middle_y,FX_FLOAT end_x,FX_FLOAT end_y,FX_FLOAT half_width,FX_FLOAT miter_limit)271 static void _UpdateLineJoinPoints(CFX_FloatRect& rect, FX_FLOAT start_x, FX_FLOAT start_y,
272 FX_FLOAT middle_x, FX_FLOAT middle_y, FX_FLOAT end_x, FX_FLOAT end_y,
273 FX_FLOAT half_width, FX_FLOAT miter_limit)
274 {
275 FX_FLOAT start_k = 0, start_c = 0, end_k = 0, end_c = 0, start_len = 0, start_dc = 0, end_len = 0, end_dc = 0;
276 FX_BOOL bStartVert = FXSYS_fabs(start_x - middle_x) < 1.0f / 20;
277 FX_BOOL bEndVert = FXSYS_fabs(middle_x - end_x) < 1.0f / 20;
278 if (bStartVert && bEndVert) {
279 int start_dir = middle_y > start_y ? 1 : -1;
280 FX_FLOAT point_y = middle_y + half_width * start_dir;
281 rect.UpdateRect(middle_x + half_width, point_y);
282 rect.UpdateRect(middle_x - half_width, point_y);
283 return;
284 }
285 if (!bStartVert) {
286 start_k = FXSYS_Div(middle_y - start_y, middle_x - start_x);
287 start_c = middle_y - FXSYS_Mul(start_k, middle_x);
288 start_len = FXSYS_sqrt2(start_x - middle_x, start_y - middle_y);
289 start_dc = (FX_FLOAT)FXSYS_fabs(FXSYS_MulDiv(half_width, start_len, start_x - middle_x));
290 }
291 if (!bEndVert) {
292 end_k = FXSYS_Div(end_y - middle_y, end_x - middle_x);
293 end_c = middle_y - FXSYS_Mul(end_k, middle_x);
294 end_len = FXSYS_sqrt2(end_x - middle_x, end_y - middle_y);
295 end_dc = (FX_FLOAT)FXSYS_fabs(FXSYS_MulDiv(half_width, end_len, end_x - middle_x));
296 }
297 if (bStartVert) {
298 FX_FLOAT outside_x = start_x;
299 if (end_x < start_x) {
300 outside_x += half_width;
301 } else {
302 outside_x -= half_width;
303 }
304 FX_FLOAT outside_y;
305 if (start_y < FXSYS_Mul(end_k, start_x) + end_c) {
306 outside_y = FXSYS_Mul(end_k, outside_x) + end_c + end_dc;
307 } else {
308 outside_y = FXSYS_Mul(end_k, outside_x) + end_c - end_dc;
309 }
310 rect.UpdateRect(outside_x, outside_y);
311 return;
312 }
313 if (bEndVert) {
314 FX_FLOAT outside_x = end_x;
315 if (start_x < end_x) {
316 outside_x += half_width;
317 } else {
318 outside_x -= half_width;
319 }
320 FX_FLOAT outside_y;
321 if (end_y < FXSYS_Mul(start_k, end_x) + start_c) {
322 outside_y = FXSYS_Mul(start_k, outside_x) + start_c + start_dc;
323 } else {
324 outside_y = FXSYS_Mul(start_k, outside_x) + start_c - start_dc;
325 }
326 rect.UpdateRect(outside_x, outside_y);
327 return;
328 }
329 if (FXSYS_fabs(start_k - end_k) < 1.0f / 20) {
330 int start_dir = middle_x > start_x ? 1 : -1;
331 int end_dir = end_x > middle_x ? 1 : -1;
332 if (start_dir == end_dir) {
333 _UpdateLineEndPoints(rect, middle_x, middle_y, end_x, end_y, half_width);
334 } else {
335 _UpdateLineEndPoints(rect, start_x, start_y, middle_x, middle_y, half_width);
336 }
337 return;
338 }
339 FX_FLOAT start_outside_c = start_c;
340 if (end_y < FXSYS_Mul(start_k, end_x) + start_c) {
341 start_outside_c += start_dc;
342 } else {
343 start_outside_c -= start_dc;
344 }
345 FX_FLOAT end_outside_c = end_c;
346 if (start_y < FXSYS_Mul(end_k, start_x) + end_c) {
347 end_outside_c += end_dc;
348 } else {
349 end_outside_c -= end_dc;
350 }
351 FX_FLOAT join_x = FXSYS_Div(end_outside_c - start_outside_c, start_k - end_k);
352 FX_FLOAT join_y = FXSYS_Mul(start_k, join_x) + start_outside_c;
353 rect.UpdateRect(join_x, join_y);
354 }
GetBoundingBox(FX_FLOAT line_width,FX_FLOAT miter_limit) const355 CFX_FloatRect CFX_PathData::GetBoundingBox(FX_FLOAT line_width, FX_FLOAT miter_limit) const
356 {
357 CFX_FloatRect rect(100000 * 1.0f, 100000 * 1.0f, -100000 * 1.0f, -100000 * 1.0f);
358 int iPoint = 0;
359 FX_FLOAT half_width = line_width;
360 int iStartPoint, iEndPoint, iMiddlePoint;
361 FX_BOOL bJoin;
362 while (iPoint < m_PointCount) {
363 if (m_pPoints[iPoint].m_Flag == FXPT_MOVETO) {
364 iStartPoint = iPoint + 1;
365 iEndPoint = iPoint;
366 bJoin = FALSE;
367 } else {
368 if (m_pPoints[iPoint].m_Flag == FXPT_BEZIERTO) {
369 rect.UpdateRect(m_pPoints[iPoint].m_PointX, m_pPoints[iPoint].m_PointY);
370 rect.UpdateRect(m_pPoints[iPoint + 1].m_PointX, m_pPoints[iPoint + 1].m_PointY);
371 iPoint += 2;
372 }
373 if (iPoint == m_PointCount - 1 || m_pPoints[iPoint + 1].m_Flag == FXPT_MOVETO) {
374 iStartPoint = iPoint - 1;
375 iEndPoint = iPoint;
376 bJoin = FALSE;
377 } else {
378 iStartPoint = iPoint - 1;
379 iMiddlePoint = iPoint;
380 iEndPoint = iPoint + 1;
381 bJoin = TRUE;
382 }
383 }
384 FX_FLOAT start_x = m_pPoints[iStartPoint].m_PointX;
385 FX_FLOAT start_y = m_pPoints[iStartPoint].m_PointY;
386 FX_FLOAT end_x = m_pPoints[iEndPoint].m_PointX;
387 FX_FLOAT end_y = m_pPoints[iEndPoint].m_PointY;
388 if (bJoin) {
389 FX_FLOAT middle_x = m_pPoints[iMiddlePoint].m_PointX;
390 FX_FLOAT middle_y = m_pPoints[iMiddlePoint].m_PointY;
391 _UpdateLineJoinPoints(rect, start_x, start_y, middle_x, middle_y, end_x, end_y, half_width, miter_limit);
392 } else {
393 _UpdateLineEndPoints(rect, start_x, start_y, end_x, end_y, half_width);
394 }
395 iPoint ++;
396 }
397 return rect;
398 }
Transform(const CFX_AffineMatrix * pMatrix)399 void CFX_PathData::Transform(const CFX_AffineMatrix* pMatrix)
400 {
401 if (pMatrix == NULL) {
402 return;
403 }
404 for (int i = 0; i < m_PointCount; i ++) {
405 pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
406 }
407 }
408 const int g_Distant[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
GetZeroAreaPath(CFX_PathData & NewPath,CFX_AffineMatrix * pMatrix,FX_BOOL & bThin,FX_BOOL bAdjust) const409 FX_BOOL CFX_PathData::GetZeroAreaPath(CFX_PathData& NewPath, CFX_AffineMatrix* pMatrix, FX_BOOL&bThin, FX_BOOL bAdjust) const
410 {
411 if (m_PointCount < 3) {
412 return FALSE;
413 }
414 if (m_PointCount == 3 && (m_pPoints[0].m_Flag & FXPT_TYPE) == FXPT_MOVETO &&
415 (m_pPoints[1].m_Flag & FXPT_TYPE) == FXPT_LINETO && (m_pPoints[2].m_Flag & FXPT_TYPE) == FXPT_LINETO
416 && m_pPoints[0].m_PointX == m_pPoints[2].m_PointX && m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) {
417 NewPath.AddPointCount(2);
418 if (bAdjust) {
419 if (pMatrix) {
420 FX_FLOAT x = m_pPoints[0].m_PointX, y = m_pPoints[0].m_PointY;
421 pMatrix->TransformPoint(x, y);
422 x = (int)x + 0.5f;
423 y = (int)y + 0.5f;
424 NewPath.SetPoint(0, x, y, FXPT_MOVETO);
425 x = m_pPoints[1].m_PointX, y = m_pPoints[1].m_PointY;
426 pMatrix->TransformPoint(x, y);
427 x = (int)x + 0.5f;
428 y = (int)y + 0.5f;
429 NewPath.SetPoint(1, x, y, FXPT_LINETO);
430 pMatrix->SetIdentity();
431 } else {
432 FX_FLOAT x = (int)m_pPoints[0].m_PointX + 0.5f, y = (int)m_pPoints[0].m_PointY + 0.5f;
433 NewPath.SetPoint(0, x, y, FXPT_MOVETO);
434 x = (int)m_pPoints[1].m_PointX + 0.5f, y = (int)m_pPoints[1].m_PointY + 0.5f;
435 NewPath.SetPoint(1, x, y, FXPT_LINETO);
436 }
437 } else {
438 NewPath.SetPoint(0, m_pPoints[0].m_PointX, m_pPoints[0].m_PointY, FXPT_MOVETO);
439 NewPath.SetPoint(1, m_pPoints[1].m_PointX, m_pPoints[1].m_PointY, FXPT_LINETO);
440 }
441 if (m_pPoints[0].m_PointX != m_pPoints[1].m_PointX && m_pPoints[0].m_PointY != m_pPoints[1].m_PointY) {
442 bThin = TRUE;
443 }
444 return TRUE;
445 }
446 if (((m_PointCount > 3) && (m_PointCount % 2))) {
447 int mid = m_PointCount / 2;
448 FX_BOOL bZeroArea = FALSE;
449 CFX_PathData t_path;
450 for (int i = 0; i < mid; i++) {
451 if (!(m_pPoints[mid - i - 1].m_PointX == m_pPoints[mid + i + 1].m_PointX
452 && m_pPoints[mid - i - 1].m_PointY == m_pPoints[mid + i + 1].m_PointY &&
453 ((m_pPoints[mid - i - 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO && (m_pPoints[mid + i + 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO))) {
454 bZeroArea = TRUE;
455 break;
456 }
457 int new_count = t_path.GetPointCount();
458 t_path.AddPointCount(2);
459 t_path.SetPoint(new_count, m_pPoints[mid - i].m_PointX, m_pPoints[mid - i].m_PointY, FXPT_MOVETO);
460 t_path.SetPoint(new_count + 1, m_pPoints[mid - i - 1].m_PointX, m_pPoints[mid - i - 1].m_PointY, FXPT_LINETO);
461 }
462 if (!bZeroArea) {
463 NewPath.Append(&t_path, NULL);
464 bThin = TRUE;
465 return TRUE;
466 }
467 }
468 int stratPoint = 0;
469 int next = 0, i;
470 for (i = 0; i < m_PointCount; i++) {
471 int point_type = m_pPoints[i].m_Flag & FXPT_TYPE;
472 if (point_type == FXPT_MOVETO) {
473 stratPoint = i;
474 } else if (point_type == FXPT_LINETO) {
475 next = (i + 1 - stratPoint) % (m_PointCount - stratPoint) + stratPoint;
476 if ((m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO && (m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_MOVETO) {
477 if((m_pPoints[i - 1].m_PointX == m_pPoints[i].m_PointX && m_pPoints[i].m_PointX == m_pPoints[next].m_PointX)
478 && ((m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY) * (m_pPoints[i].m_PointY - m_pPoints[next].m_PointY) > 0)) {
479 int pre = i;
480 if (FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY)
481 < FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[next].m_PointY)) {
482 pre --;
483 next--;
484 }
485 int new_count = NewPath.GetPointCount();
486 NewPath.AddPointCount(2);
487 NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX, m_pPoints[pre].m_PointY, FXPT_MOVETO);
488 NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX, m_pPoints[next].m_PointY, FXPT_LINETO);
489 } else if((m_pPoints[i - 1].m_PointY == m_pPoints[i].m_PointY && m_pPoints[i].m_PointY == m_pPoints[next].m_PointY)
490 && ((m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX) * (m_pPoints[i].m_PointX - m_pPoints[next].m_PointX) > 0)) {
491 int pre = i;
492 if (FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX)
493 < FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[next].m_PointX)) {
494 pre --;
495 next--;
496 }
497 int new_count = NewPath.GetPointCount();
498 NewPath.AddPointCount(2);
499 NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX, m_pPoints[pre].m_PointY, FXPT_MOVETO);
500 NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX, m_pPoints[next].m_PointY, FXPT_LINETO);
501 } else if ((m_pPoints[i - 1].m_Flag & FXPT_TYPE) == FXPT_MOVETO && (m_pPoints[next].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
502 m_pPoints[i - 1].m_PointX == m_pPoints[next].m_PointX && m_pPoints[i - 1].m_PointY == m_pPoints[next].m_PointY
503 && m_pPoints[next].m_Flag & FXPT_CLOSEFIGURE) {
504 int new_count = NewPath.GetPointCount();
505 NewPath.AddPointCount(2);
506 NewPath.SetPoint(new_count, m_pPoints[i - 1].m_PointX, m_pPoints[i - 1].m_PointY, FXPT_MOVETO);
507 NewPath.SetPoint(new_count + 1, m_pPoints[i].m_PointX, m_pPoints[i].m_PointY, FXPT_LINETO);
508 bThin = TRUE;
509 }
510 }
511 } else if (point_type == FXPT_BEZIERTO) {
512 i += 2;
513 continue;
514 }
515 }
516 if (m_PointCount > 3 && NewPath.GetPointCount()) {
517 bThin = TRUE;
518 }
519 if (NewPath.GetPointCount() == 0) {
520 return FALSE;
521 }
522 return TRUE;
523 }
IsRect() const524 FX_BOOL CFX_PathData::IsRect() const
525 {
526 if (m_PointCount != 5 && m_PointCount != 4) {
527 return FALSE;
528 }
529 if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX ||
530 m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
531 (m_pPoints[0].m_PointX == m_pPoints[2].m_PointX && m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) ||
532 (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX && m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
533 return FALSE;
534 }
535 if (m_pPoints[0].m_PointX != m_pPoints[3].m_PointX && m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
536 return FALSE;
537 }
538 for (int i = 1; i < 4; i ++) {
539 if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
540 return FALSE;
541 }
542 if (m_pPoints[i].m_PointX != m_pPoints[i - 1].m_PointX && m_pPoints[i].m_PointY != m_pPoints[i - 1].m_PointY) {
543 return FALSE;
544 }
545 }
546 return m_PointCount == 5 || (m_pPoints[3].m_Flag & FXPT_CLOSEFIGURE);
547 }
IsRect(const CFX_AffineMatrix * pMatrix,CFX_FloatRect * pRect) const548 FX_BOOL CFX_PathData::IsRect(const CFX_AffineMatrix* pMatrix, CFX_FloatRect* pRect) const
549 {
550 if (pMatrix == NULL) {
551 if (!IsRect()) {
552 return FALSE;
553 }
554 if (pRect) {
555 pRect->left = m_pPoints[0].m_PointX;
556 pRect->right = m_pPoints[2].m_PointX;
557 pRect->bottom = m_pPoints[0].m_PointY;
558 pRect->top = m_pPoints[2].m_PointY;
559 pRect->Normalize();
560 }
561 return TRUE;
562 }
563 if (m_PointCount != 5 && m_PointCount != 4) {
564 return FALSE;
565 }
566 if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX || m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
567 (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX && m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
568 return FALSE;
569 }
570 if (m_PointCount == 4 && m_pPoints[0].m_PointX != m_pPoints[3].m_PointX && m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
571 return FALSE;
572 }
573 FX_FLOAT x[5], y[5];
574 for (int i = 0; i < m_PointCount; i ++) {
575 pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY, x[i], y[i]);
576 if (i) {
577 if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
578 return FALSE;
579 }
580 if (x[i] != x[i - 1] && y[i] != y[i - 1]) {
581 return FALSE;
582 }
583 }
584 }
585 if (pRect) {
586 pRect->left = x[0];
587 pRect->right = x[2];
588 pRect->bottom = y[0];
589 pRect->top = y[2];
590 pRect->Normalize();
591 }
592 return TRUE;
593 }
Copy(const CFX_PathData & src)594 FX_BOOL CFX_PathData::Copy(const CFX_PathData &src)
595 {
596 if (!SetPointCount(src.m_PointCount)) {
597 return FALSE;
598 }
599 FXSYS_memcpy32(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
600 return TRUE;
601 }
CFX_GraphStateData()602 CFX_GraphStateData::CFX_GraphStateData()
603 {
604 m_LineCap = LineCapButt;
605 m_DashCount = 0;
606 m_DashArray = NULL;
607 m_DashPhase = 0;
608 m_LineJoin = LineJoinMiter;
609 m_MiterLimit = 10 * 1.0f;
610 m_LineWidth = 1.0f;
611 }
CFX_GraphStateData(const CFX_GraphStateData & src)612 CFX_GraphStateData::CFX_GraphStateData(const CFX_GraphStateData& src)
613 {
614 m_DashArray = NULL;
615 Copy(src);
616 }
Copy(const CFX_GraphStateData & src)617 void CFX_GraphStateData::Copy(const CFX_GraphStateData& src)
618 {
619 m_LineCap = src.m_LineCap;
620 m_DashCount = src.m_DashCount;
621 if (m_DashArray) {
622 FX_Free(m_DashArray);
623 }
624 m_DashArray = NULL;
625 m_DashPhase = src.m_DashPhase;
626 m_LineJoin = src.m_LineJoin;
627 m_MiterLimit = src.m_MiterLimit;
628 m_LineWidth = src.m_LineWidth;
629 if (m_DashCount) {
630 m_DashArray = FX_Alloc(FX_FLOAT, m_DashCount);
631 if (!m_DashArray) {
632 return;
633 }
634 FXSYS_memcpy32(m_DashArray, src.m_DashArray, m_DashCount * sizeof(FX_FLOAT));
635 }
636 }
~CFX_GraphStateData()637 CFX_GraphStateData::~CFX_GraphStateData()
638 {
639 if (m_DashArray) {
640 FX_Free(m_DashArray);
641 }
642 }
SetDashCount(int count)643 void CFX_GraphStateData::SetDashCount(int count)
644 {
645 if (m_DashArray) {
646 FX_Free(m_DashArray);
647 }
648 m_DashArray = NULL;
649 m_DashCount = count;
650 if (count == 0) {
651 return;
652 }
653 m_DashArray = FX_Alloc(FX_FLOAT, count);
654 }
655