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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 #include "core/fpdfapi/fpdf_render/render_int.h" | |
| 8 | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "core/fpdfapi/font/cpdf_cidfont.h" | |
| 12 #include "core/fpdfapi/font/cpdf_font.h" | |
| 13 #include "core/fpdfapi/font/cpdf_type3char.h" | |
| 14 #include "core/fpdfapi/font/cpdf_type3font.h" | |
| 15 #include "core/fpdfapi/fpdf_render/cpdf_renderoptions.h" | |
| 16 #include "core/fpdfapi/fpdf_render/cpdf_textrenderer.h" | |
| 17 #include "core/fpdfapi/fpdf_render/cpdf_type3cache.h" | |
| 18 #include "core/fpdfapi/page/cpdf_form.h" | |
| 19 #include "core/fpdfapi/page/cpdf_imageobject.h" | |
| 20 #include "core/fpdfapi/page/cpdf_pageobject.h" | |
| 21 #include "core/fpdfapi/page/cpdf_pathobject.h" | |
| 22 #include "core/fpdfapi/page/cpdf_textobject.h" | |
| 23 #include "core/fpdfapi/page/pageint.h" | |
| 24 #include "core/fpdfapi/parser/cpdf_dictionary.h" | |
| 25 #include "core/fpdfapi/parser/cpdf_document.h" | |
| 26 #include "core/fxge/cfx_facecache.h" | |
| 27 #include "core/fxge/cfx_fxgedevice.h" | |
| 28 #include "core/fxge/cfx_gemodule.h" | |
| 29 #include "core/fxge/cfx_graphstatedata.h" | |
| 30 #include "core/fxge/cfx_pathdata.h" | |
| 31 #include "core/fxge/cfx_renderdevice.h" | |
| 32 | |
| 33 FX_BOOL CPDF_RenderStatus::ProcessText(CPDF_TextObject* textobj, | |
| 34 const CFX_Matrix* pObj2Device, | |
| 35 CFX_PathData* pClippingPath) { | |
| 36 if (textobj->m_nChars == 0) | |
| 37 return TRUE; | |
| 38 | |
| 39 const TextRenderingMode text_render_mode = textobj->m_TextState.GetTextMode(); | |
| 40 if (text_render_mode == TextRenderingMode::MODE_INVISIBLE) | |
| 41 return TRUE; | |
| 42 | |
| 43 CPDF_Font* pFont = textobj->m_TextState.GetFont(); | |
| 44 if (pFont->IsType3Font()) | |
| 45 return ProcessType3Text(textobj, pObj2Device); | |
| 46 | |
| 47 bool bFill = false; | |
| 48 bool bStroke = false; | |
| 49 bool bClip = false; | |
| 50 if (pClippingPath) { | |
| 51 bClip = true; | |
| 52 } else { | |
| 53 switch (text_render_mode) { | |
| 54 case TextRenderingMode::MODE_FILL: | |
| 55 case TextRenderingMode::MODE_FILL_CLIP: | |
| 56 bFill = true; | |
| 57 break; | |
| 58 case TextRenderingMode::MODE_STROKE: | |
| 59 case TextRenderingMode::MODE_STROKE_CLIP: | |
| 60 if (pFont->GetFace() || | |
| 61 (pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { | |
| 62 bStroke = true; | |
| 63 } else { | |
| 64 bFill = true; | |
| 65 } | |
| 66 break; | |
| 67 case TextRenderingMode::MODE_FILL_STROKE: | |
| 68 case TextRenderingMode::MODE_FILL_STROKE_CLIP: | |
| 69 bFill = true; | |
| 70 if (pFont->GetFace() || | |
| 71 (pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { | |
| 72 bStroke = true; | |
| 73 } | |
| 74 break; | |
| 75 case TextRenderingMode::MODE_INVISIBLE: | |
| 76 // Already handled above, but the compiler is not smart enough to | |
| 77 // realize it. Fall through. | |
| 78 ASSERT(false); | |
| 79 case TextRenderingMode::MODE_CLIP: | |
| 80 return TRUE; | |
| 81 } | |
| 82 } | |
| 83 FX_ARGB stroke_argb = 0; | |
| 84 FX_ARGB fill_argb = 0; | |
| 85 bool bPattern = false; | |
| 86 if (bStroke) { | |
| 87 if (textobj->m_ColorState.GetStrokeColor()->IsPattern()) { | |
| 88 bPattern = true; | |
| 89 } else { | |
| 90 stroke_argb = GetStrokeArgb(textobj); | |
| 91 } | |
| 92 } | |
| 93 if (bFill) { | |
| 94 if (textobj->m_ColorState.GetFillColor()->IsPattern()) { | |
| 95 bPattern = true; | |
| 96 } else { | |
| 97 fill_argb = GetFillArgb(textobj); | |
| 98 } | |
| 99 } | |
| 100 CFX_Matrix text_matrix; | |
| 101 textobj->GetTextMatrix(&text_matrix); | |
| 102 if (!IsAvailableMatrix(text_matrix)) | |
| 103 return TRUE; | |
| 104 | |
| 105 FX_FLOAT font_size = textobj->m_TextState.GetFontSize(); | |
| 106 if (bPattern) { | |
| 107 DrawTextPathWithPattern(textobj, pObj2Device, pFont, font_size, | |
| 108 &text_matrix, bFill, bStroke); | |
| 109 return TRUE; | |
| 110 } | |
| 111 if (bClip || bStroke) { | |
| 112 const CFX_Matrix* pDeviceMatrix = pObj2Device; | |
| 113 CFX_Matrix device_matrix; | |
| 114 if (bStroke) { | |
| 115 const FX_FLOAT* pCTM = textobj->m_TextState.GetCTM(); | |
| 116 if (pCTM[0] != 1.0f || pCTM[3] != 1.0f) { | |
| 117 CFX_Matrix ctm(pCTM[0], pCTM[1], pCTM[2], pCTM[3], 0, 0); | |
| 118 text_matrix.ConcatInverse(ctm); | |
| 119 device_matrix = ctm; | |
| 120 device_matrix.Concat(*pObj2Device); | |
| 121 pDeviceMatrix = &device_matrix; | |
| 122 } | |
| 123 } | |
| 124 int flag = 0; | |
| 125 if (bStroke && bFill) { | |
| 126 flag |= FX_FILL_STROKE; | |
| 127 flag |= FX_STROKE_TEXT_MODE; | |
| 128 } | |
| 129 if (textobj->m_GeneralState.GetStrokeAdjust()) | |
| 130 flag |= FX_STROKE_ADJUST; | |
| 131 if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) | |
| 132 flag |= FXFILL_NOPATHSMOOTH; | |
| 133 return CPDF_TextRenderer::DrawTextPath( | |
| 134 m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, | |
| 135 textobj->m_pCharPos, pFont, font_size, &text_matrix, pDeviceMatrix, | |
| 136 textobj->m_GraphState.GetObject(), fill_argb, stroke_argb, | |
| 137 pClippingPath, flag); | |
| 138 } | |
| 139 text_matrix.Concat(*pObj2Device); | |
| 140 return CPDF_TextRenderer::DrawNormalText( | |
| 141 m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, | |
| 142 pFont, font_size, &text_matrix, fill_argb, &m_Options); | |
| 143 } | |
| 144 | |
| 145 CPDF_Type3Cache* CPDF_RenderStatus::GetCachedType3(CPDF_Type3Font* pFont) { | |
| 146 if (!pFont->m_pDocument) { | |
| 147 return nullptr; | |
| 148 } | |
| 149 pFont->m_pDocument->GetPageData()->GetFont(pFont->GetFontDict(), FALSE); | |
| 150 return pFont->m_pDocument->GetRenderData()->GetCachedType3(pFont); | |
| 151 } | |
| 152 static void ReleaseCachedType3(CPDF_Type3Font* pFont) { | |
| 153 if (!pFont->m_pDocument) { | |
| 154 return; | |
| 155 } | |
| 156 pFont->m_pDocument->GetRenderData()->ReleaseCachedType3(pFont); | |
| 157 pFont->m_pDocument->GetPageData()->ReleaseFont(pFont->GetFontDict()); | |
| 158 } | |
| 159 | |
| 160 class CPDF_RefType3Cache { | |
| 161 public: | |
| 162 explicit CPDF_RefType3Cache(CPDF_Type3Font* pType3Font) | |
| 163 : m_dwCount(0), m_pType3Font(pType3Font) {} | |
| 164 ~CPDF_RefType3Cache() { | |
| 165 while (m_dwCount--) { | |
| 166 ReleaseCachedType3(m_pType3Font); | |
| 167 } | |
| 168 } | |
| 169 uint32_t m_dwCount; | |
| 170 CPDF_Type3Font* const m_pType3Font; | |
| 171 }; | |
| 172 | |
| 173 // TODO(npm): Font fallback for type 3 fonts? (Completely separate code!!) | |
| 174 FX_BOOL CPDF_RenderStatus::ProcessType3Text(CPDF_TextObject* textobj, | |
| 175 const CFX_Matrix* pObj2Device) { | |
| 176 CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->AsType3Font(); | |
| 177 for (int i = 0; i < m_Type3FontCache.GetSize(); ++i) { | |
| 178 if (m_Type3FontCache.GetAt(i) == pType3Font) | |
| 179 return TRUE; | |
| 180 } | |
| 181 | |
| 182 CFX_Matrix dCTM = m_pDevice->GetCTM(); | |
| 183 FX_FLOAT sa = FXSYS_fabs(dCTM.a); | |
| 184 FX_FLOAT sd = FXSYS_fabs(dCTM.d); | |
| 185 CFX_Matrix text_matrix; | |
| 186 textobj->GetTextMatrix(&text_matrix); | |
| 187 CFX_Matrix char_matrix = pType3Font->GetFontMatrix(); | |
| 188 FX_FLOAT font_size = textobj->m_TextState.GetFontSize(); | |
| 189 char_matrix.Scale(font_size, font_size); | |
| 190 FX_ARGB fill_argb = GetFillArgb(textobj, TRUE); | |
| 191 int fill_alpha = FXARGB_A(fill_argb); | |
| 192 int device_class = m_pDevice->GetDeviceClass(); | |
| 193 std::vector<FXTEXT_GLYPHPOS> glyphs; | |
| 194 if (device_class == FXDC_DISPLAY) | |
| 195 glyphs.resize(textobj->m_nChars); | |
| 196 else if (fill_alpha < 255) | |
| 197 return FALSE; | |
| 198 | |
| 199 CPDF_RefType3Cache refTypeCache(pType3Font); | |
| 200 uint32_t* pChars = textobj->m_pCharCodes; | |
| 201 if (textobj->m_nChars == 1) | |
| 202 pChars = (uint32_t*)(&textobj->m_pCharCodes); | |
| 203 | |
| 204 for (int iChar = 0; iChar < textobj->m_nChars; iChar++) { | |
| 205 uint32_t charcode = pChars[iChar]; | |
| 206 if (charcode == (uint32_t)-1) | |
| 207 continue; | |
| 208 | |
| 209 CPDF_Type3Char* pType3Char = pType3Font->LoadChar(charcode); | |
| 210 if (!pType3Char) | |
| 211 continue; | |
| 212 | |
| 213 CFX_Matrix matrix = char_matrix; | |
| 214 matrix.e += iChar ? textobj->m_pCharPos[iChar - 1] : 0; | |
| 215 matrix.Concat(text_matrix); | |
| 216 matrix.Concat(*pObj2Device); | |
| 217 if (!pType3Char->LoadBitmap(m_pContext)) { | |
| 218 if (!glyphs.empty()) { | |
| 219 for (int i = 0; i < iChar; i++) { | |
| 220 const FXTEXT_GLYPHPOS& glyph = glyphs[i]; | |
| 221 if (!glyph.m_pGlyph) | |
| 222 continue; | |
| 223 | |
| 224 m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap, | |
| 225 glyph.m_OriginX + glyph.m_pGlyph->m_Left, | |
| 226 glyph.m_OriginY - glyph.m_pGlyph->m_Top, | |
| 227 fill_argb); | |
| 228 } | |
| 229 glyphs.clear(); | |
| 230 } | |
| 231 CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE); | |
| 232 CPDF_RenderOptions Options = m_Options; | |
| 233 Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA; | |
| 234 Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE; | |
| 235 CPDF_Dictionary* pFormResource = nullptr; | |
| 236 if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) { | |
| 237 pFormResource = | |
| 238 pType3Char->m_pForm->m_pFormDict->GetDictFor("Resources"); | |
| 239 } | |
| 240 if (fill_alpha == 255) { | |
| 241 CPDF_RenderStatus status; | |
| 242 status.Initialize(m_pContext, m_pDevice, nullptr, nullptr, this, | |
| 243 pStates, &Options, | |
| 244 pType3Char->m_pForm->m_Transparency, m_bDropObjects, | |
| 245 pFormResource, FALSE, pType3Char, fill_argb); | |
| 246 status.m_Type3FontCache.Append(m_Type3FontCache); | |
| 247 status.m_Type3FontCache.Add(pType3Font); | |
| 248 m_pDevice->SaveState(); | |
| 249 status.RenderObjectList(pType3Char->m_pForm.get(), &matrix); | |
| 250 m_pDevice->RestoreState(false); | |
| 251 } else { | |
| 252 CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox(); | |
| 253 rect_f.Transform(&matrix); | |
| 254 FX_RECT rect = rect_f.GetOuterRect(); | |
| 255 CFX_FxgeDevice bitmap_device; | |
| 256 if (!bitmap_device.Create((int)(rect.Width() * sa), | |
| 257 (int)(rect.Height() * sd), FXDIB_Argb, | |
| 258 nullptr)) { | |
| 259 return TRUE; | |
| 260 } | |
| 261 bitmap_device.GetBitmap()->Clear(0); | |
| 262 CPDF_RenderStatus status; | |
| 263 status.Initialize(m_pContext, &bitmap_device, nullptr, nullptr, this, | |
| 264 pStates, &Options, | |
| 265 pType3Char->m_pForm->m_Transparency, m_bDropObjects, | |
| 266 pFormResource, FALSE, pType3Char, fill_argb); | |
| 267 status.m_Type3FontCache.Append(m_Type3FontCache); | |
| 268 status.m_Type3FontCache.Add(pType3Font); | |
| 269 matrix.TranslateI(-rect.left, -rect.top); | |
| 270 matrix.Scale(sa, sd); | |
| 271 status.RenderObjectList(pType3Char->m_pForm.get(), &matrix); | |
| 272 m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top); | |
| 273 } | |
| 274 delete pStates; | |
| 275 } else if (pType3Char->m_pBitmap) { | |
| 276 if (device_class == FXDC_DISPLAY) { | |
| 277 CPDF_Type3Cache* pCache = GetCachedType3(pType3Font); | |
| 278 refTypeCache.m_dwCount++; | |
| 279 CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd); | |
| 280 if (!pBitmap) | |
| 281 continue; | |
| 282 | |
| 283 int origin_x = FXSYS_round(matrix.e); | |
| 284 int origin_y = FXSYS_round(matrix.f); | |
| 285 if (glyphs.empty()) { | |
| 286 m_pDevice->SetBitMask(&pBitmap->m_Bitmap, origin_x + pBitmap->m_Left, | |
| 287 origin_y - pBitmap->m_Top, fill_argb); | |
| 288 } else { | |
| 289 glyphs[iChar].m_pGlyph = pBitmap; | |
| 290 glyphs[iChar].m_OriginX = origin_x; | |
| 291 glyphs[iChar].m_OriginY = origin_y; | |
| 292 } | |
| 293 } else { | |
| 294 CFX_Matrix image_matrix = pType3Char->m_ImageMatrix; | |
| 295 image_matrix.Concat(matrix); | |
| 296 CPDF_ImageRenderer renderer; | |
| 297 if (renderer.Start(this, pType3Char->m_pBitmap.get(), fill_argb, 255, | |
| 298 &image_matrix, 0, FALSE)) { | |
| 299 renderer.Continue(nullptr); | |
| 300 } | |
| 301 if (!renderer.m_Result) | |
| 302 return FALSE; | |
| 303 } | |
| 304 } | |
| 305 } | |
| 306 | |
| 307 if (glyphs.empty()) | |
| 308 return TRUE; | |
| 309 | |
| 310 FX_RECT rect = FXGE_GetGlyphsBBox(glyphs, 0, sa, sd); | |
| 311 CFX_DIBitmap bitmap; | |
| 312 if (!bitmap.Create(static_cast<int>(rect.Width() * sa), | |
| 313 static_cast<int>(rect.Height() * sd), FXDIB_8bppMask)) { | |
| 314 return TRUE; | |
| 315 } | |
| 316 bitmap.Clear(0); | |
| 317 for (const FXTEXT_GLYPHPOS& glyph : glyphs) { | |
| 318 if (!glyph.m_pGlyph) | |
| 319 continue; | |
| 320 | |
| 321 bitmap.TransferBitmap( | |
| 322 static_cast<int>( | |
| 323 (glyph.m_OriginX + glyph.m_pGlyph->m_Left - rect.left) * sa), | |
| 324 static_cast<int>((glyph.m_OriginY - glyph.m_pGlyph->m_Top - rect.top) * | |
| 325 sd), | |
| 326 glyph.m_pGlyph->m_Bitmap.GetWidth(), | |
| 327 glyph.m_pGlyph->m_Bitmap.GetHeight(), &glyph.m_pGlyph->m_Bitmap, 0, 0); | |
| 328 } | |
| 329 m_pDevice->SetBitMask(&bitmap, rect.left, rect.top, fill_argb); | |
| 330 return TRUE; | |
| 331 } | |
| 332 | |
| 333 class CPDF_CharPosList { | |
| 334 public: | |
| 335 CPDF_CharPosList(); | |
| 336 ~CPDF_CharPosList(); | |
| 337 void Load(int nChars, | |
| 338 uint32_t* pCharCodes, | |
| 339 FX_FLOAT* pCharPos, | |
| 340 CPDF_Font* pFont, | |
| 341 FX_FLOAT font_size); | |
| 342 FXTEXT_CHARPOS* m_pCharPos; | |
| 343 uint32_t m_nChars; | |
| 344 }; | |
| 345 | |
| 346 CPDF_CharPosList::CPDF_CharPosList() { | |
| 347 m_pCharPos = nullptr; | |
| 348 } | |
| 349 | |
| 350 CPDF_CharPosList::~CPDF_CharPosList() { | |
| 351 FX_Free(m_pCharPos); | |
| 352 } | |
| 353 | |
| 354 void CPDF_CharPosList::Load(int nChars, | |
| 355 uint32_t* pCharCodes, | |
| 356 FX_FLOAT* pCharPos, | |
| 357 CPDF_Font* pFont, | |
| 358 FX_FLOAT FontSize) { | |
| 359 m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars); | |
| 360 m_nChars = 0; | |
| 361 CPDF_CIDFont* pCIDFont = pFont->AsCIDFont(); | |
| 362 FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting(); | |
| 363 for (int iChar = 0; iChar < nChars; iChar++) { | |
| 364 uint32_t CharCode = | |
| 365 nChars == 1 ? (uint32_t)(uintptr_t)pCharCodes : pCharCodes[iChar]; | |
| 366 if (CharCode == (uint32_t)-1) { | |
| 367 continue; | |
| 368 } | |
| 369 bool bVert = false; | |
| 370 FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++]; | |
| 371 if (pCIDFont) { | |
| 372 charpos.m_bFontStyle = true; | |
| 373 } | |
| 374 charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert); | |
| 375 if (charpos.m_GlyphIndex != static_cast<uint32_t>(-1)) { | |
| 376 charpos.m_FallbackFontPosition = -1; | |
| 377 } else { | |
| 378 charpos.m_FallbackFontPosition = | |
| 379 pFont->FallbackFontFromCharcode(CharCode); | |
| 380 charpos.m_GlyphIndex = pFont->FallbackGlyphFromCharcode( | |
| 381 charpos.m_FallbackFontPosition, CharCode); | |
| 382 } | |
| 383 // TODO(npm): Figure out how this affects m_ExtGID | |
| 384 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 385 charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode); | |
| 386 #endif | |
| 387 if (!pFont->IsEmbedded() && !pFont->IsCIDFont()) { | |
| 388 charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode); | |
| 389 } else { | |
| 390 charpos.m_FontCharWidth = 0; | |
| 391 } | |
| 392 charpos.m_OriginX = iChar ? pCharPos[iChar - 1] : 0; | |
| 393 charpos.m_OriginY = 0; | |
| 394 charpos.m_bGlyphAdjust = FALSE; | |
| 395 if (!pCIDFont) { | |
| 396 continue; | |
| 397 } | |
| 398 uint16_t CID = pCIDFont->CIDFromCharCode(CharCode); | |
| 399 if (bVertWriting) { | |
| 400 charpos.m_OriginY = charpos.m_OriginX; | |
| 401 charpos.m_OriginX = 0; | |
| 402 short vx, vy; | |
| 403 pCIDFont->GetVertOrigin(CID, vx, vy); | |
| 404 charpos.m_OriginX -= FontSize * vx / 1000; | |
| 405 charpos.m_OriginY -= FontSize * vy / 1000; | |
| 406 } | |
| 407 const uint8_t* pTransform = pCIDFont->GetCIDTransform(CID); | |
| 408 if (pTransform && !bVert) { | |
| 409 charpos.m_AdjustMatrix[0] = pCIDFont->CIDTransformToFloat(pTransform[0]); | |
| 410 charpos.m_AdjustMatrix[2] = pCIDFont->CIDTransformToFloat(pTransform[2]); | |
| 411 charpos.m_AdjustMatrix[1] = pCIDFont->CIDTransformToFloat(pTransform[1]); | |
| 412 charpos.m_AdjustMatrix[3] = pCIDFont->CIDTransformToFloat(pTransform[3]); | |
| 413 charpos.m_OriginX += | |
| 414 pCIDFont->CIDTransformToFloat(pTransform[4]) * FontSize; | |
| 415 charpos.m_OriginY += | |
| 416 pCIDFont->CIDTransformToFloat(pTransform[5]) * FontSize; | |
| 417 charpos.m_bGlyphAdjust = TRUE; | |
| 418 } | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 // static | |
| 423 FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, | |
| 424 int nChars, | |
| 425 uint32_t* pCharCodes, | |
| 426 FX_FLOAT* pCharPos, | |
| 427 CPDF_Font* pFont, | |
| 428 FX_FLOAT font_size, | |
| 429 const CFX_Matrix* pText2User, | |
| 430 const CFX_Matrix* pUser2Device, | |
| 431 const CFX_GraphStateData* pGraphState, | |
| 432 FX_ARGB fill_argb, | |
| 433 FX_ARGB stroke_argb, | |
| 434 CFX_PathData* pClippingPath, | |
| 435 int nFlag) { | |
| 436 CPDF_CharPosList CharPosList; | |
| 437 CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); | |
| 438 if (CharPosList.m_nChars == 0) | |
| 439 return TRUE; | |
| 440 bool bDraw = true; | |
| 441 int32_t fontPosition = CharPosList.m_pCharPos[0].m_FallbackFontPosition; | |
| 442 uint32_t startIndex = 0; | |
| 443 for (uint32_t i = 0; i < CharPosList.m_nChars; i++) { | |
| 444 int32_t curFontPosition = CharPosList.m_pCharPos[i].m_FallbackFontPosition; | |
| 445 if (fontPosition == curFontPosition) | |
| 446 continue; | |
| 447 auto* font = fontPosition == -1 | |
| 448 ? &pFont->m_Font | |
| 449 : pFont->m_FontFallbacks[fontPosition].get(); | |
| 450 if (!pDevice->DrawTextPath(i - startIndex, | |
| 451 CharPosList.m_pCharPos + startIndex, font, | |
| 452 font_size, pText2User, pUser2Device, pGraphState, | |
| 453 fill_argb, stroke_argb, pClippingPath, nFlag)) { | |
| 454 bDraw = false; | |
| 455 } | |
| 456 fontPosition = curFontPosition; | |
| 457 startIndex = i; | |
| 458 } | |
| 459 auto* font = fontPosition == -1 ? &pFont->m_Font | |
| 460 : pFont->m_FontFallbacks[fontPosition].get(); | |
| 461 if (!pDevice->DrawTextPath(CharPosList.m_nChars - startIndex, | |
| 462 CharPosList.m_pCharPos + startIndex, font, | |
| 463 font_size, pText2User, pUser2Device, pGraphState, | |
| 464 fill_argb, stroke_argb, pClippingPath, nFlag)) { | |
| 465 bDraw = false; | |
| 466 } | |
| 467 return bDraw; | |
| 468 } | |
| 469 | |
| 470 // static | |
| 471 void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, | |
| 472 FX_FLOAT origin_x, | |
| 473 FX_FLOAT origin_y, | |
| 474 CPDF_Font* pFont, | |
| 475 FX_FLOAT font_size, | |
| 476 const CFX_Matrix* pMatrix, | |
| 477 const CFX_ByteString& str, | |
| 478 FX_ARGB fill_argb, | |
| 479 FX_ARGB stroke_argb, | |
| 480 const CFX_GraphStateData* pGraphState, | |
| 481 const CPDF_RenderOptions* pOptions) { | |
| 482 if (pFont->IsType3Font()) | |
| 483 return; | |
| 484 | |
| 485 int nChars = pFont->CountChar(str.c_str(), str.GetLength()); | |
| 486 if (nChars <= 0) | |
| 487 return; | |
| 488 | |
| 489 int offset = 0; | |
| 490 uint32_t* pCharCodes; | |
| 491 FX_FLOAT* pCharPos; | |
| 492 std::vector<uint32_t> codes; | |
| 493 std::vector<FX_FLOAT> positions; | |
| 494 if (nChars == 1) { | |
| 495 pCharCodes = reinterpret_cast<uint32_t*>( | |
| 496 pFont->GetNextChar(str.c_str(), str.GetLength(), offset)); | |
| 497 pCharPos = nullptr; | |
| 498 } else { | |
| 499 codes.resize(nChars); | |
| 500 positions.resize(nChars - 1); | |
| 501 FX_FLOAT cur_pos = 0; | |
| 502 for (int i = 0; i < nChars; i++) { | |
| 503 codes[i] = pFont->GetNextChar(str.c_str(), str.GetLength(), offset); | |
| 504 if (i) | |
| 505 positions[i - 1] = cur_pos; | |
| 506 cur_pos += pFont->GetCharWidthF(codes[i]) * font_size / 1000; | |
| 507 } | |
| 508 pCharCodes = codes.data(); | |
| 509 pCharPos = positions.data(); | |
| 510 } | |
| 511 CFX_Matrix matrix; | |
| 512 if (pMatrix) | |
| 513 matrix = *pMatrix; | |
| 514 | |
| 515 matrix.e = origin_x; | |
| 516 matrix.f = origin_y; | |
| 517 | |
| 518 if (stroke_argb == 0) { | |
| 519 DrawNormalText(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, | |
| 520 &matrix, fill_argb, pOptions); | |
| 521 } else { | |
| 522 DrawTextPath(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, | |
| 523 &matrix, nullptr, pGraphState, fill_argb, stroke_argb, nullptr, | |
| 524 0); | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 // static | |
| 529 FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, | |
| 530 int nChars, | |
| 531 uint32_t* pCharCodes, | |
| 532 FX_FLOAT* pCharPos, | |
| 533 CPDF_Font* pFont, | |
| 534 FX_FLOAT font_size, | |
| 535 const CFX_Matrix* pText2Device, | |
| 536 FX_ARGB fill_argb, | |
| 537 const CPDF_RenderOptions* pOptions) { | |
| 538 CPDF_CharPosList CharPosList; | |
| 539 CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); | |
| 540 if (CharPosList.m_nChars == 0) | |
| 541 return TRUE; | |
| 542 int FXGE_flags = 0; | |
| 543 if (pOptions) { | |
| 544 uint32_t dwFlags = pOptions->m_Flags; | |
| 545 if (dwFlags & RENDER_CLEARTYPE) { | |
| 546 FXGE_flags |= FXTEXT_CLEARTYPE; | |
| 547 if (dwFlags & RENDER_BGR_STRIPE) { | |
| 548 FXGE_flags |= FXTEXT_BGR_STRIPE; | |
| 549 } | |
| 550 } | |
| 551 if (dwFlags & RENDER_NOTEXTSMOOTH) { | |
| 552 FXGE_flags |= FXTEXT_NOSMOOTH; | |
| 553 } | |
| 554 if (dwFlags & RENDER_PRINTGRAPHICTEXT) { | |
| 555 FXGE_flags |= FXTEXT_PRINTGRAPHICTEXT; | |
| 556 } | |
| 557 if (dwFlags & RENDER_NO_NATIVETEXT) { | |
| 558 FXGE_flags |= FXTEXT_NO_NATIVETEXT; | |
| 559 } | |
| 560 if (dwFlags & RENDER_PRINTIMAGETEXT) { | |
| 561 FXGE_flags |= FXTEXT_PRINTIMAGETEXT; | |
| 562 } | |
| 563 } else { | |
| 564 FXGE_flags = FXTEXT_CLEARTYPE; | |
| 565 } | |
| 566 if (pFont->IsCIDFont()) { | |
| 567 FXGE_flags |= FXFONT_CIDFONT; | |
| 568 } | |
| 569 bool bDraw = true; | |
| 570 int32_t fontPosition = CharPosList.m_pCharPos[0].m_FallbackFontPosition; | |
| 571 uint32_t startIndex = 0; | |
| 572 for (uint32_t i = 0; i < CharPosList.m_nChars; i++) { | |
| 573 int32_t curFontPosition = CharPosList.m_pCharPos[i].m_FallbackFontPosition; | |
| 574 if (fontPosition == curFontPosition) | |
| 575 continue; | |
| 576 auto* font = fontPosition == -1 | |
| 577 ? &pFont->m_Font | |
| 578 : pFont->m_FontFallbacks[fontPosition].get(); | |
| 579 if (!pDevice->DrawNormalText( | |
| 580 i - startIndex, CharPosList.m_pCharPos + startIndex, font, | |
| 581 font_size, pText2Device, fill_argb, FXGE_flags)) { | |
| 582 bDraw = false; | |
| 583 } | |
| 584 fontPosition = curFontPosition; | |
| 585 startIndex = i; | |
| 586 } | |
| 587 auto* font = fontPosition == -1 ? &pFont->m_Font | |
| 588 : pFont->m_FontFallbacks[fontPosition].get(); | |
| 589 if (!pDevice->DrawNormalText(CharPosList.m_nChars - startIndex, | |
| 590 CharPosList.m_pCharPos + startIndex, font, | |
| 591 font_size, pText2Device, fill_argb, | |
| 592 FXGE_flags)) { | |
| 593 bDraw = false; | |
| 594 } | |
| 595 return bDraw; | |
| 596 } | |
| 597 | |
| 598 void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, | |
| 599 const CFX_Matrix* pObj2Device, | |
| 600 CPDF_Font* pFont, | |
| 601 FX_FLOAT font_size, | |
| 602 const CFX_Matrix* pTextMatrix, | |
| 603 FX_BOOL bFill, | |
| 604 FX_BOOL bStroke) { | |
| 605 if (!bStroke) { | |
| 606 CPDF_PathObject path; | |
| 607 std::vector<std::unique_ptr<CPDF_TextObject>> pCopy; | |
| 608 pCopy.push_back(std::unique_ptr<CPDF_TextObject>(textobj->Clone())); | |
| 609 path.m_bStroke = FALSE; | |
| 610 path.m_FillType = FXFILL_WINDING; | |
| 611 path.m_ClipPath.AppendTexts(&pCopy); | |
| 612 path.m_ColorState = textobj->m_ColorState; | |
| 613 path.m_Path.AppendRect(textobj->m_Left, textobj->m_Bottom, textobj->m_Right, | |
| 614 textobj->m_Top); | |
| 615 path.m_Left = textobj->m_Left; | |
| 616 path.m_Bottom = textobj->m_Bottom; | |
| 617 path.m_Right = textobj->m_Right; | |
| 618 path.m_Top = textobj->m_Top; | |
| 619 RenderSingleObject(&path, pObj2Device); | |
| 620 return; | |
| 621 } | |
| 622 CPDF_CharPosList CharPosList; | |
| 623 CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes, | |
| 624 textobj->m_pCharPos, pFont, font_size); | |
| 625 for (uint32_t i = 0; i < CharPosList.m_nChars; i++) { | |
| 626 FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i]; | |
| 627 auto font = | |
| 628 charpos.m_FallbackFontPosition == -1 | |
| 629 ? &pFont->m_Font | |
| 630 : pFont->m_FontFallbacks[charpos.m_FallbackFontPosition].get(); | |
| 631 const CFX_PathData* pPath = | |
| 632 font->LoadGlyphPath(charpos.m_GlyphIndex, charpos.m_FontCharWidth); | |
| 633 if (!pPath) { | |
| 634 continue; | |
| 635 } | |
| 636 CPDF_PathObject path; | |
| 637 path.m_GraphState = textobj->m_GraphState; | |
| 638 path.m_ColorState = textobj->m_ColorState; | |
| 639 CFX_Matrix matrix; | |
| 640 if (charpos.m_bGlyphAdjust) | |
| 641 matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], | |
| 642 charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0); | |
| 643 matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX, | |
| 644 charpos.m_OriginY); | |
| 645 path.m_Path.Append(pPath, &matrix); | |
| 646 path.m_Matrix = *pTextMatrix; | |
| 647 path.m_bStroke = bStroke; | |
| 648 path.m_FillType = bFill ? FXFILL_WINDING : 0; | |
| 649 path.CalcBoundingBox(); | |
| 650 ProcessPath(&path, pObj2Device); | |
| 651 } | |
| 652 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2393593002:
Move core/fpdfapi/fpdf_render to core/fpdfapi/render (Closed)
