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" 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 } 16 CFX_ClipRgn::CFX_ClipRgn(const FX_RECT& rect) 17 { 18 m_Type = RectI; 19 m_Box = rect; 20 } 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 } 27 CFX_ClipRgn::~CFX_ClipRgn() 28 { 29 } 30 void CFX_ClipRgn::Reset(const FX_RECT& rect) 31 { 32 m_Type = RectI; 33 m_Box = rect; 34 m_Mask.SetNull(); 35 } 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 } 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 } 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 } 112 CFX_PathData::CFX_PathData() 113 { 114 m_PointCount = m_AllocCount = 0; 115 m_pPoints = NULL; 116 } 117 CFX_PathData::~CFX_PathData() 118 { 119 if (m_pPoints) { 120 FX_Free(m_pPoints); 121 } 122 } 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 } 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 } 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 } 167 void CFX_PathData::TrimPoints(int nPoints) 168 { 169 if (m_PointCount <= nPoints) { 170 return; 171 } 172 SetPointCount(nPoints); 173 } 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 } 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 } 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 } 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 } 221 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 } 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 } 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 } 355 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 } 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}; 409 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 } 524 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 } 548 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 } 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 } 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 } 612 CFX_GraphStateData::CFX_GraphStateData(const CFX_GraphStateData& src) 613 { 614 m_DashArray = NULL; 615 Copy(src); 616 } 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 } 637 CFX_GraphStateData::~CFX_GraphStateData() 638 { 639 if (m_DashArray) { 640 FX_Free(m_DashArray); 641 } 642 } 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
