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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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