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.
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
7 #include "../../../include/fpdfapi/fpdf_page.h"
8 #include "../../../include/fpdfapi/fpdf_module.h"
10 void CPDF_PageObject::Release()
14 CPDF_PageObject* CPDF_PageObject::Create(int type)
18 return FX_NEW CPDF_TextObject;
20 return FX_NEW CPDF_ImageObject;
22 return FX_NEW CPDF_PathObject;
24 return FX_NEW CPDF_ShadingObject;
26 return FX_NEW CPDF_FormObject;
30 CPDF_PageObject* CPDF_PageObject::Clone() const
32 CPDF_PageObject* pObj = Create(m_Type);
36 void CPDF_PageObject::Copy(const CPDF_PageObject* pSrc)
38 if (m_Type != pSrc->m_Type) {
43 m_Left = pSrc->m_Left;
44 m_Right = pSrc->m_Right;
46 m_Bottom = pSrc->m_Bottom;
48 void CPDF_PageObject::AppendClipPath(CPDF_Path path, int type, FX_BOOL bAutoMerge)
50 m_ClipPath.AppendPath(path, type, bAutoMerge);
52 void CPDF_PageObject::CopyClipPath(CPDF_PageObject* pObj)
54 m_ClipPath = pObj->m_ClipPath;
56 void CPDF_PageObject::RemoveClipPath()
60 void CPDF_PageObject::RecalcBBox()
64 ((CPDF_TextObject*)this)->RecalcPositionData();
67 ((CPDF_PathObject*)this)->CalcBoundingBox();
70 ((CPDF_ShadingObject*)this)->CalcBoundingBox();
74 void CPDF_PageObject::TransformClipPath(CFX_AffineMatrix& matrix)
76 if (m_ClipPath.IsNull()) {
79 m_ClipPath.GetModify();
80 m_ClipPath.Transform(matrix);
82 void CPDF_PageObject::TransformGeneralState(CFX_AffineMatrix& matrix)
84 if(m_GeneralState.IsNull()) {
87 CPDF_GeneralStateData* pGS = m_GeneralState.GetModify();
88 pGS->m_Matrix.Concat(matrix);
90 FX_RECT CPDF_PageObject::GetBBox(const CFX_AffineMatrix* pMatrix) const
92 CFX_FloatRect rect(m_Left, m_Bottom, m_Right, m_Top);
94 pMatrix->TransformRect(rect);
96 return rect.GetOutterRect();
98 CPDF_TextObject::CPDF_TextObject()
100 m_Type = PDFPAGE_TEXT;
106 CPDF_TextObject::~CPDF_TextObject()
108 if (m_nChars > 1 && m_pCharCodes) {
109 FX_Free(m_pCharCodes);
115 void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const
117 pInfo->m_CharCode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[index];
118 pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0;
119 pInfo->m_OriginY = 0;
120 if (pInfo->m_CharCode == -1) {
123 CPDF_Font* pFont = m_TextState.GetFont();
124 if (pFont->GetFontType() != PDFFONT_CIDFONT) {
127 if (!((CPDF_CIDFont*)pFont)->IsVertWriting()) {
130 FX_WORD CID = ((CPDF_CIDFont*)pFont)->CIDFromCharCode(pInfo->m_CharCode);
131 pInfo->m_OriginY = pInfo->m_OriginX;
132 pInfo->m_OriginX = 0;
134 ((CPDF_CIDFont*)pFont)->GetVertOrigin(CID, vx, vy);
135 FX_FLOAT fontsize = m_TextState.GetFontSize();
136 pInfo->m_OriginX -= fontsize * vx / 1000;
137 pInfo->m_OriginY -= fontsize * vy / 1000;
139 int CPDF_TextObject::CountChars() const
145 for (int i = 0; i < m_nChars; i ++)
146 if (m_pCharCodes[i] != (FX_DWORD) - 1) {
151 void CPDF_TextObject::GetCharInfo(int index, FX_DWORD& charcode, FX_FLOAT& kerning) const
154 charcode = (FX_DWORD)(FX_UINTPTR)m_pCharCodes;
159 for (int i = 0; i < m_nChars; i ++) {
160 if (m_pCharCodes[i] != (FX_DWORD) - 1) {
161 if (count == index) {
162 charcode = m_pCharCodes[i];
163 if (i == m_nChars - 1 || m_pCharCodes[i + 1] != (FX_DWORD) - 1) {
166 kerning = m_pCharPos[i];
174 void CPDF_TextObject::GetCharInfo(int index, CPDF_TextObjectItem* pInfo) const
177 GetItemInfo(0, pInfo);
181 for (int i = 0; i < m_nChars; i ++) {
182 FX_DWORD charcode = m_pCharCodes[i];
183 if (charcode == (FX_DWORD) - 1) {
186 if (count == index) {
187 GetItemInfo(i, pInfo);
193 void CPDF_TextObject::CopyData(const CPDF_PageObject* pSrc)
195 const CPDF_TextObject* pSrcObj = (const CPDF_TextObject*)pSrc;
196 if (m_nChars > 1 && m_pCharCodes) {
197 FX_Free(m_pCharCodes);
204 m_nChars = pSrcObj->m_nChars;
206 m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
207 m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
209 for (i = 0; i < m_nChars; i ++) {
210 m_pCharCodes[i] = pSrcObj->m_pCharCodes[i];
212 for (i = 0; i < m_nChars - 1; i ++) {
213 m_pCharPos[i] = pSrcObj->m_pCharPos[i];
216 m_pCharCodes = pSrcObj->m_pCharCodes;
218 m_PosX = pSrcObj->m_PosX;
219 m_PosY = pSrcObj->m_PosY;
221 void CPDF_TextObject::GetTextMatrix(CFX_AffineMatrix* pMatrix) const
223 FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
224 pMatrix->Set(pTextMatrix[0], pTextMatrix[2], pTextMatrix[1], pTextMatrix[3], m_PosX, m_PosY);
226 void CPDF_TextObject::SetSegments(const CFX_ByteString* pStrs, FX_FLOAT* pKerning, int nsegs)
228 if (m_nChars > 1 && m_pCharCodes) {
229 FX_Free(m_pCharCodes);
236 CPDF_Font* pFont = m_TextState.GetFont();
238 for (int i = 0; i < nsegs; i ++) {
239 m_nChars += pFont->CountChar(pStrs[i], pStrs[i].GetLength());
241 m_nChars += nsegs - 1;
243 m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
244 m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
246 for (int i = 0; i < nsegs; i ++) {
247 FX_LPCSTR segment = pStrs[i];
248 int offset = 0, len = pStrs[i].GetLength();
249 while (offset < len) {
250 m_pCharCodes[index++] = pFont->GetNextChar(segment, offset);
252 if (i != nsegs - 1) {
253 m_pCharPos[index - 1] = pKerning[i];
254 m_pCharCodes[index ++] = (FX_DWORD) - 1;
259 m_pCharCodes = (FX_DWORD*)(FX_UINTPTR)pFont->GetNextChar(pStrs[0], offset);
262 void CPDF_TextObject::SetText(const CFX_ByteString& str)
264 SetSegments(&str, NULL, 1);
265 RecalcPositionData();
267 void CPDF_TextObject::SetEmpty()
269 if (m_nChars > 1 && m_pCharCodes) {
270 FX_Free(m_pCharCodes);
272 if (m_nChars > 1 && m_pCharPos) {
278 m_Left = m_Right = m_PosX;
279 m_Top = m_Bottom = m_PosY;
281 void CPDF_TextObject::SetText(CFX_ByteString* pStrs, FX_FLOAT* pKerning, int nSegs)
283 SetSegments(pStrs, pKerning, nSegs);
284 RecalcPositionData();
286 void CPDF_TextObject::SetText(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pKernings)
288 if (m_nChars > 1 && m_pCharCodes) {
289 FX_Free(m_pCharCodes);
298 for (i = 0; i < nChars - 1; i ++)
299 if (pKernings[i] != 0) {
302 m_nChars = nChars + nKernings;
304 m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
305 m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
307 for (int i = 0; i < nChars; i ++) {
308 m_pCharCodes[index++] = pCharCodes[i];
309 if (pKernings[i] != 0 && i != nChars - 1) {
310 m_pCharCodes[index] = (FX_DWORD) - 1;
311 m_pCharPos[index - 1] = pKernings[i];
316 m_pCharCodes = (FX_DWORD*)(FX_UINTPTR)pCharCodes[0];
318 RecalcPositionData();
320 FX_FLOAT CPDF_TextObject::GetCharWidth(FX_DWORD charcode) const
322 FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
323 CPDF_Font* pFont = m_TextState.GetFont();
324 FX_BOOL bVertWriting = FALSE;
325 CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
327 bVertWriting = pCIDFont->IsVertWriting();
330 return pFont->GetCharWidthF(charcode, 0) * fontsize;
332 FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
333 return pCIDFont->GetVertWidth(CID) * fontsize;
336 FX_FLOAT CPDF_TextObject::GetSpaceCharWidth() const
338 CPDF_Font* pFont = m_TextState.GetFont();
339 FX_DWORD charCode = m_TextState.GetFont()->CharCodeFromUnicode(32);
340 if (charCode != (FX_DWORD) - 1) {
341 return GetCharWidth(charCode);
343 FX_FLOAT fontSize = m_TextState.GetFontSize() / 4000.0f;
344 FX_BOOL bVertWriting = FALSE;
345 CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
347 bVertWriting = pCIDFont->IsVertWriting();
350 pFont->GetFontBBox(fontRect);
351 fontSize *= bVertWriting ? (FX_FLOAT)fontRect.Height() : (FX_FLOAT)fontRect.Width();
354 void CPDF_TextObject::GetCharRect(int index, CFX_FloatRect& rect) const
356 CPDF_Font* pFont = m_TextState.GetFont();
357 FX_BOOL bVertWriting = FALSE;
358 CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
360 bVertWriting = pCIDFont->IsVertWriting();
362 FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
364 for (int i = 0; i < m_nChars; i ++) {
365 FX_DWORD charcode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[i];
366 if (charcode == (FX_DWORD) - 1) {
369 if( count != index) {
373 FX_FLOAT curpos = i > 0 ? m_pCharPos[i - 1] : 0;
375 pFont->GetCharBBox(charcode, char_rect, 0);
377 rect.left = curpos + char_rect.left * fontsize;
378 rect.right = curpos + char_rect.right * fontsize;
379 rect.top = char_rect.top * fontsize;
380 rect.bottom = char_rect.bottom * fontsize;
382 FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
384 pCIDFont->GetVertOrigin(CID, vx, vy);
385 char_rect.left -= vx;
386 char_rect.right -= vx;
388 char_rect.bottom -= vy;
389 rect.left = char_rect.left * fontsize;
390 rect.right = char_rect.right * fontsize;
391 rect.top = curpos + char_rect.top * fontsize;
392 rect.bottom = curpos + char_rect.bottom * fontsize;
397 void CPDF_TextObject::CalcPositionData(FX_FLOAT* pTextAdvanceX, FX_FLOAT* pTextAdvanceY, FX_FLOAT horz_scale, int level)
400 FX_FLOAT min_x = 10000 * 1.0f, max_x = -10000 * 1.0f, min_y = 10000 * 1.0f, max_y = -10000 * 1.0f;
401 CPDF_Font* pFont = m_TextState.GetFont();
402 FX_BOOL bVertWriting = FALSE;
403 CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
405 bVertWriting = pCIDFont->IsVertWriting();
407 FX_FLOAT fontsize = m_TextState.GetFontSize();
408 for (int i = 0; i < m_nChars; i ++) {
409 FX_DWORD charcode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[i];
410 if (charcode == (FX_DWORD) - 1) {
411 curpos -= FXSYS_Mul(m_pCharPos[i - 1], fontsize) / 1000;
415 m_pCharPos[i - 1] = curpos;
418 pFont->GetCharBBox(charcode, char_rect, level);
421 if (min_y > char_rect.top) {
422 min_y = (FX_FLOAT)char_rect.top;
424 if (max_y < char_rect.top) {
425 max_y = (FX_FLOAT)char_rect.top;
427 if (min_y > char_rect.bottom) {
428 min_y = (FX_FLOAT)char_rect.bottom;
430 if (max_y < char_rect.bottom) {
431 max_y = (FX_FLOAT)char_rect.bottom;
433 FX_FLOAT char_left = curpos + char_rect.left * fontsize / 1000;
434 FX_FLOAT char_right = curpos + char_rect.right * fontsize / 1000;
435 if (min_x > char_left) {
438 if (max_x < char_left) {
441 if (min_x > char_right) {
444 if (max_x < char_right) {
447 charwidth = pFont->GetCharWidthF(charcode, level) * fontsize / 1000;
449 FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
451 pCIDFont->GetVertOrigin(CID, vx, vy);
452 char_rect.left -= vx;
453 char_rect.right -= vx;
455 char_rect.bottom -= vy;
456 if (min_x > char_rect.left) {
457 min_x = (FX_FLOAT)char_rect.left;
459 if (max_x < char_rect.left) {
460 max_x = (FX_FLOAT)char_rect.left;
462 if (min_x > char_rect.right) {
463 min_x = (FX_FLOAT)char_rect.right;
465 if (max_x < char_rect.right) {
466 max_x = (FX_FLOAT)char_rect.right;
468 FX_FLOAT char_top = curpos + char_rect.top * fontsize / 1000;
469 FX_FLOAT char_bottom = curpos + char_rect.bottom * fontsize / 1000;
470 if (min_y > char_top) {
473 if (max_y < char_top) {
476 if (min_y > char_bottom) {
479 if (max_y < char_bottom) {
482 charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
485 if (charcode == ' ' && (pCIDFont == NULL || pCIDFont->GetCharSize(32) == 1)) {
486 curpos += m_TextState.GetObject()->m_WordSpace;
488 curpos += m_TextState.GetObject()->m_CharSpace;
495 *pTextAdvanceY = curpos;
497 min_x = min_x * fontsize / 1000;
498 max_x = max_x * fontsize / 1000;
501 *pTextAdvanceX = FXSYS_Mul(curpos, horz_scale);
506 min_y = min_y * fontsize / 1000;
507 max_y = max_y * fontsize / 1000;
509 CFX_AffineMatrix matrix;
510 GetTextMatrix(&matrix);
515 matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
516 int textmode = m_TextState.GetObject()->m_TextMode;
517 if (textmode == 1 || textmode == 2 || textmode == 5 || textmode == 6) {
518 FX_FLOAT half_width = m_GraphState.GetObject()->m_LineWidth / 2;
519 m_Left -= half_width;
520 m_Right += half_width;
522 m_Bottom -= half_width;
525 void CPDF_TextObject::CalcCharPos(FX_FLOAT* pPosArray) const
527 CPDF_Font* pFont = m_TextState.GetFont();
528 FX_BOOL bVertWriting = FALSE;
529 CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
531 bVertWriting = pCIDFont->IsVertWriting();
533 FX_FLOAT fontsize = m_TextState.GetFontSize();
535 for (int i = 0; i < m_nChars; i ++) {
536 FX_DWORD charcode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[i];
537 if (charcode == (FX_DWORD) - 1) {
540 pPosArray[index++] = i ? m_pCharPos[i - 1] : 0;
543 FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
544 charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
546 charwidth = pFont->GetCharWidthF(charcode) * fontsize / 1000;
548 pPosArray[index] = pPosArray[index - 1] + charwidth;
552 void CPDF_TextObject::Transform(const CFX_AffineMatrix& matrix)
554 m_TextState.GetModify();
555 CFX_AffineMatrix text_matrix;
556 GetTextMatrix(&text_matrix);
557 text_matrix.Concat(matrix);
558 FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
559 pTextMatrix[0] = text_matrix.GetA();
560 pTextMatrix[1] = text_matrix.GetC();
561 pTextMatrix[2] = text_matrix.GetB();
562 pTextMatrix[3] = text_matrix.GetD();
563 m_PosX = text_matrix.GetE();
564 m_PosY = text_matrix.GetF();
565 CalcPositionData(NULL, NULL, 0);
567 void CPDF_TextObject::SetPosition(FX_FLOAT x, FX_FLOAT y)
569 FX_FLOAT dx = x - m_PosX;
570 FX_FLOAT dy = y - m_PosY;
578 void CPDF_TextObject::SetData(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, FX_FLOAT x, FX_FLOAT y)
580 ASSERT(m_nChars == 0);
588 m_pCharCodes = (FX_DWORD*)(FX_UINTPTR) * pCharCodes;
590 m_pCharCodes = FX_Alloc(FX_DWORD, nChars);
591 FXSYS_memcpy32(m_pCharCodes, pCharCodes, sizeof(FX_DWORD)*nChars);
592 m_pCharPos = FX_Alloc(FX_FLOAT, nChars - 1);
593 FXSYS_memcpy32(m_pCharPos, pCharPos, sizeof(FX_FLOAT) * (nChars - 1));
595 RecalcPositionData();
597 void CPDF_TextObject::SetTextState(CPDF_TextState TextState)
599 m_TextState = TextState;
600 CalcPositionData(NULL, NULL, 0);
602 CPDF_ShadingObject::CPDF_ShadingObject()
605 m_Type = PDFPAGE_SHADING;
607 CPDF_ShadingObject::~CPDF_ShadingObject()
609 CPDF_ShadingPattern* pShading = m_pShading;
610 if (pShading && pShading->m_pDocument) {
611 pShading->m_pDocument->GetPageData()->ReleasePattern(pShading->m_pShadingObj);
614 void CPDF_ShadingObject::CopyData(const CPDF_PageObject* pSrc)
616 CPDF_ShadingObject* pSrcObj = (CPDF_ShadingObject*)pSrc;
617 m_pShading = pSrcObj->m_pShading;
618 if (m_pShading && m_pShading->m_pDocument) {
619 CPDF_DocPageData* pDocPageData = m_pShading->m_pDocument->GetPageData();
620 m_pShading = (CPDF_ShadingPattern*)pDocPageData->GetPattern(m_pShading->m_pShadingObj, m_pShading->m_bShadingObj, &m_pShading->m_ParentMatrix);
622 m_Matrix = pSrcObj->m_Matrix;
624 void CPDF_ShadingObject::Transform(const CFX_AffineMatrix& matrix)
626 if (!m_ClipPath.IsNull()) {
627 m_ClipPath.GetModify();
628 m_ClipPath.Transform(matrix);
630 m_Matrix.Concat(matrix);
631 if (!m_ClipPath.IsNull()) {
634 matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
637 void CPDF_ShadingObject::CalcBoundingBox()
639 if (m_ClipPath.IsNull()) {
642 CFX_FloatRect rect = m_ClipPath.GetClipBox();
644 m_Bottom = rect.bottom;
645 m_Right = rect.right;
648 CPDF_FormObject::~CPDF_FormObject()
654 void CPDF_FormObject::Transform(const CFX_AffineMatrix& matrix)
656 m_FormMatrix.Concat(matrix);
659 void CPDF_FormObject::CopyData(const CPDF_PageObject* pSrc)
661 const CPDF_FormObject* pSrcObj = (const CPDF_FormObject*)pSrc;
665 m_pForm = pSrcObj->m_pForm->Clone();
666 m_FormMatrix = pSrcObj->m_FormMatrix;
668 void CPDF_FormObject::CalcBoundingBox()
670 CFX_FloatRect form_rect = m_pForm->CalcBoundingBox();
671 form_rect.Transform(&m_FormMatrix);
672 m_Left = form_rect.left;
673 m_Bottom = form_rect.bottom;
674 m_Right = form_rect.right;
675 m_Top = form_rect.top;
677 CPDF_PageObjects::CPDF_PageObjects(FX_BOOL bReleaseMembers) : m_ObjectList(128)
679 m_bBackgroundAlphaNeeded = FALSE;
680 m_bReleaseMembers = bReleaseMembers;
681 m_ParseState = PDF_CONTENT_NOT_PARSED;
683 m_pFormStream = NULL;
686 CPDF_PageObjects::~CPDF_PageObjects()
691 if (!m_bReleaseMembers) {
694 FX_POSITION pos = m_ObjectList.GetHeadPosition();
696 CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
703 void CPDF_PageObjects::ContinueParse(IFX_Pause* pPause)
705 if (m_pParser == NULL) {
708 m_pParser->Continue(pPause);
709 if (m_pParser->GetStatus() == CPDF_ContentParser::Done) {
710 m_ParseState = PDF_CONTENT_PARSED;
715 int CPDF_PageObjects::EstimateParseProgress() const
717 if (m_pParser == NULL) {
718 return m_ParseState == PDF_CONTENT_PARSED ? 100 : 0;
720 return m_pParser->EstimateProgress();
722 FX_POSITION CPDF_PageObjects::InsertObject(FX_POSITION posInsertAfter, CPDF_PageObject* pNewObject)
724 if (posInsertAfter == NULL) {
725 return m_ObjectList.AddHead(pNewObject);
727 return m_ObjectList.InsertAfter(posInsertAfter, pNewObject);
730 int CPDF_PageObjects::GetObjectIndex(CPDF_PageObject* pObj) const
733 FX_POSITION pos = m_ObjectList.GetHeadPosition();
735 CPDF_PageObject* pThisObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
736 if (pThisObj == pObj) {
743 CPDF_PageObject* CPDF_PageObjects::GetObjectByIndex(int index) const
745 FX_POSITION pos = m_ObjectList.FindIndex(index);
749 return (CPDF_PageObject*)m_ObjectList.GetAt(pos);
751 void CPDF_PageObjects::Transform(const CFX_AffineMatrix& matrix)
753 FX_POSITION pos = m_ObjectList.GetHeadPosition();
755 CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
756 pObj->Transform(matrix);
759 CFX_FloatRect CPDF_PageObjects::CalcBoundingBox() const
761 if (m_ObjectList.GetCount() == 0) {
762 return CFX_FloatRect(0, 0, 0, 0);
764 FX_FLOAT left, right, top, bottom;
765 left = bottom = 1000000 * 1.0f;
766 right = top = -1000000 * 1.0f;
767 FX_POSITION pos = m_ObjectList.GetHeadPosition();
769 CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
770 if (left > pObj->m_Left) {
773 if (right < pObj->m_Right) {
774 right = pObj->m_Right;
776 if (top < pObj->m_Top) {
779 if (bottom > pObj->m_Bottom) {
780 bottom = pObj->m_Bottom;
783 return CFX_FloatRect(left, bottom, right, top);
785 void CPDF_PageObjects::LoadTransInfo()
787 if (m_pFormDict == NULL) {
790 CPDF_Dictionary* pGroup = m_pFormDict->GetDict(FX_BSTRC("Group"));
791 if (pGroup == NULL) {
794 if (pGroup->GetString(FX_BSTRC("S")) != FX_BSTRC("Transparency")) {
797 m_Transparency |= PDFTRANS_GROUP;
798 if (pGroup->GetInteger(FX_BSTRC("I"))) {
799 m_Transparency |= PDFTRANS_ISOLATED;
801 if (pGroup->GetInteger(FX_BSTRC("K"))) {
802 m_Transparency |= PDFTRANS_KNOCKOUT;
805 void CPDF_PageObjects::ClearCacheObjects()
807 m_ParseState = PDF_CONTENT_NOT_PARSED;
812 if (m_bReleaseMembers) {
813 FX_POSITION pos = m_ObjectList.GetHeadPosition();
815 CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
822 m_ObjectList.RemoveAll();
824 CPDF_Page::CPDF_Page()
826 m_pPageRender = NULL;
828 void CPDF_Page::Load(CPDF_Document* pDocument, CPDF_Dictionary* pPageDict, FX_BOOL bPageCache)
830 m_pDocument = (CPDF_Document*)pDocument;
831 m_pFormDict = pPageDict;
833 m_pPageRender = CPDF_ModuleMgr::Get()->GetRenderModule()->CreatePageCache(this);
835 if (pPageDict == NULL) {
836 m_PageWidth = m_PageHeight = 100 * 1.0f;
837 m_pPageResources = m_pResources = NULL;
840 CPDF_Object* pageAttr = GetPageAttr(FX_BSTRC("Resources"));
841 m_pResources = pageAttr ? pageAttr->GetDict() : NULL;
842 m_pPageResources = m_pResources;
843 CPDF_Object* pRotate = GetPageAttr(FX_BSTRC("Rotate"));
846 rotate = pRotate->GetInteger() / 90 % 4;
851 CPDF_Array* pMediaBox, *pCropBox;
852 pMediaBox = (CPDF_Array*)GetPageAttr(FX_BSTRC("MediaBox"));
853 CFX_FloatRect mediabox;
855 mediabox = pMediaBox->GetRect();
856 mediabox.Normalize();
858 if (mediabox.IsEmpty()) {
859 mediabox = CFX_FloatRect(0, 0, 612, 792);
861 pCropBox = (CPDF_Array*)GetPageAttr(FX_BSTRC("CropBox"));
863 m_BBox = pCropBox->GetRect();
866 if (m_BBox.IsEmpty()) {
869 m_BBox.Intersect(mediabox);
872 m_PageHeight = m_BBox.right - m_BBox.left;
873 m_PageWidth = m_BBox.top - m_BBox.bottom;
875 m_PageWidth = m_BBox.right - m_BBox.left;
876 m_PageHeight = m_BBox.top - m_BBox.bottom;
880 m_PageMatrix.Set(1.0f, 0, 0, 1.0f, -m_BBox.left, -m_BBox.bottom);
883 m_PageMatrix.Set(0, -1.0f, 1.0f, 0, -m_BBox.bottom, m_BBox.right);
886 m_PageMatrix.Set(-1.0f, 0, 0, -1.0f, m_BBox.right, m_BBox.top);
889 m_PageMatrix.Set(0, 1.0f, -1.0f, 0, m_BBox.top, -m_BBox.left);
892 m_Transparency = PDFTRANS_ISOLATED;
895 void CPDF_Page::StartParse(CPDF_ParseOptions* pOptions, FX_BOOL bReParse)
900 if (m_ParseState == PDF_CONTENT_PARSED || m_ParseState == PDF_CONTENT_PARSING) {
903 m_pParser = FX_NEW CPDF_ContentParser;
904 m_pParser->Start(this, pOptions);
905 m_ParseState = PDF_CONTENT_PARSING;
907 void CPDF_Page::ParseContent(CPDF_ParseOptions* pOptions, FX_BOOL bReParse)
909 StartParse(pOptions, bReParse);
912 CPDF_Page::~CPDF_Page()
915 CPDF_RenderModuleDef* pModule = CPDF_ModuleMgr::Get()->GetRenderModule();
916 pModule->DestroyPageCache(m_pPageRender);
919 CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name)
923 CPDF_Object* pObj = pPageDict->GetElementValue(name);
927 CPDF_Dictionary* pParent = pPageDict->GetDict(FX_BSTRC("Parent"));
928 if (!pParent || pParent == pPageDict) {
938 CPDF_Object* CPDF_Page::GetPageAttr(FX_BSTR name) const
940 return FPDFAPI_GetPageAttr(m_pFormDict, name);
942 CPDF_Form::CPDF_Form(CPDF_Document* pDoc, CPDF_Dictionary* pPageResources, CPDF_Stream* pFormStream, CPDF_Dictionary* pParentResources)
945 m_pFormStream = pFormStream;
946 m_pFormDict = pFormStream ? pFormStream->GetDict() : NULL;
947 m_pResources = m_pFormDict->GetDict(FX_BSTRC("Resources"));
948 m_pPageResources = pPageResources;
949 if (m_pResources == NULL) {
950 m_pResources = pParentResources;
952 if (m_pResources == NULL) {
953 m_pResources = pPageResources;
958 CPDF_Form::~CPDF_Form()
961 void CPDF_Form::StartParse(CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix,
962 CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level)
964 if (m_ParseState == PDF_CONTENT_PARSED || m_ParseState == PDF_CONTENT_PARSING) {
967 m_pParser = FX_NEW CPDF_ContentParser;
968 m_pParser->Start(this, pGraphicStates, pParentMatrix, pType3Char, pOptions, level);
969 m_ParseState = PDF_CONTENT_PARSING;
971 void CPDF_Form::ParseContent(CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix,
972 CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level)
974 StartParse(pGraphicStates, pParentMatrix, pType3Char, pOptions, level);
977 CPDF_Form* CPDF_Form::Clone() const
979 CPDF_Form* pClone = FX_NEW CPDF_Form(m_pDocument, m_pPageResources, m_pFormStream, m_pResources);
980 FX_POSITION pos = m_ObjectList.GetHeadPosition();
982 CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
983 pClone->m_ObjectList.AddTail(pObj->Clone());
987 void CPDF_Page::GetDisplayMatrix(CFX_AffineMatrix& matrix, int xPos, int yPos,
988 int xSize, int ySize, int iRotate) const
990 if (m_PageWidth == 0 || m_PageHeight == 0) {
993 CFX_AffineMatrix display_matrix;
994 int x0, y0, x1, y1, x2, y2;
1030 display_matrix.Set(FXSYS_Div((FX_FLOAT)(x2 - x0), m_PageWidth),
1031 FXSYS_Div((FX_FLOAT)(y2 - y0), m_PageWidth),
1032 FXSYS_Div((FX_FLOAT)(x1 - x0), m_PageHeight),
1033 FXSYS_Div((FX_FLOAT)(y1 - y0), m_PageHeight),
1034 (FX_FLOAT)x0, (FX_FLOAT)y0);
1035 matrix = m_PageMatrix;
1036 matrix.Concat(display_matrix);
1038 CPDF_ParseOptions::CPDF_ParseOptions()
1040 m_bTextOnly = FALSE;
1041 m_bMarkedContent = TRUE;
1042 m_bSeparateForm = TRUE;
1043 m_bDecodeInlineImage = FALSE;