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| 1 // Copyright 2016 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_page/cpdf_form.h" | |
| 8 | |
| 9 #include "core/fpdfapi/fpdf_page/cpdf_pageobject.h" | |
| 10 #include "core/fpdfapi/fpdf_page/cpdf_pageobjectholder.h" | |
| 11 #include "core/fpdfapi/fpdf_page/pageint.h" | |
| 12 #include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h" | |
| 13 #include "core/fpdfapi/fpdf_parser/cpdf_stream.h" | |
| 14 | |
| 15 CPDF_Form::CPDF_Form(CPDF_Document* pDoc, | |
| 16 CPDF_Dictionary* pPageResources, | |
| 17 CPDF_Stream* pFormStream, | |
| 18 CPDF_Dictionary* pParentResources) { | |
| 19 m_pDocument = pDoc; | |
| 20 m_pFormStream = pFormStream; | |
| 21 m_pFormDict = pFormStream ? pFormStream->GetDict() : nullptr; | |
| 22 m_pResources = m_pFormDict->GetDictFor("Resources"); | |
| 23 m_pPageResources = pPageResources; | |
| 24 if (!m_pResources) | |
| 25 m_pResources = pParentResources; | |
| 26 if (!m_pResources) | |
| 27 m_pResources = pPageResources; | |
| 28 m_Transparency = 0; | |
| 29 LoadTransInfo(); | |
| 30 } | |
| 31 | |
| 32 CPDF_Form::~CPDF_Form() {} | |
| 33 | |
| 34 void CPDF_Form::StartParse(CPDF_AllStates* pGraphicStates, | |
| 35 const CFX_Matrix* pParentMatrix, | |
| 36 CPDF_Type3Char* pType3Char, | |
| 37 int level) { | |
| 38 if (m_ParseState == CONTENT_PARSED || m_ParseState == CONTENT_PARSING) | |
| 39 return; | |
| 40 | |
| 41 m_pParser.reset(new CPDF_ContentParser); | |
| 42 m_pParser->Start(this, pGraphicStates, pParentMatrix, pType3Char, level); | |
| 43 m_ParseState = CONTENT_PARSING; | |
| 44 } | |
| 45 | |
| 46 void CPDF_Form::ParseContent(CPDF_AllStates* pGraphicStates, | |
| 47 const CFX_Matrix* pParentMatrix, | |
| 48 CPDF_Type3Char* pType3Char, | |
| 49 int level) { | |
| 50 StartParse(pGraphicStates, pParentMatrix, pType3Char, level); | |
| 51 ContinueParse(nullptr); | |
| 52 } | |
| 53 | |
| 54 CPDF_Form* CPDF_Form::Clone() const { | |
| 55 CPDF_Form* pCloneForm = | |
| 56 new CPDF_Form(m_pDocument, m_pPageResources, m_pFormStream, m_pResources); | |
| 57 for (const auto& pObj : m_PageObjectList) | |
| 58 pCloneForm->m_PageObjectList.emplace_back(pObj->Clone()); | |
| 59 | |
| 60 return pCloneForm; | |
| 61 } | |
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