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/page/cpdf_form.h"
8
9 #include "core/fpdfapi/page/cpdf_contentparser.h"
10 #include "core/fpdfapi/page/cpdf_pageobject.h"
11 #include "core/fpdfapi/page/cpdf_pageobjectholder.h"
12 #include "core/fpdfapi/page/pageint.h"
13 #include "core/fpdfapi/parser/cpdf_dictionary.h"
14 #include "core/fpdfapi/parser/cpdf_stream.h"
15 #include "third_party/base/ptr_util.h"
16
CPDF_Form(CPDF_Document * pDoc,CPDF_Dictionary * pPageResources,CPDF_Stream * pFormStream,CPDF_Dictionary * pParentResources)17 CPDF_Form::CPDF_Form(CPDF_Document* pDoc,
18 CPDF_Dictionary* pPageResources,
19 CPDF_Stream* pFormStream,
20 CPDF_Dictionary* pParentResources) {
21 m_pDocument = pDoc;
22 m_pFormStream = pFormStream;
23 m_pFormDict = pFormStream ? pFormStream->GetDict() : nullptr;
24 m_pResources = m_pFormDict->GetDictFor("Resources");
25 m_pPageResources = pPageResources;
26 if (!m_pResources)
27 m_pResources = pParentResources;
28 if (!m_pResources)
29 m_pResources = pPageResources;
30 m_Transparency = 0;
31 LoadTransInfo();
32 }
33
~CPDF_Form()34 CPDF_Form::~CPDF_Form() {}
35
StartParse(CPDF_AllStates * pGraphicStates,const CFX_Matrix * pParentMatrix,CPDF_Type3Char * pType3Char,int level)36 void CPDF_Form::StartParse(CPDF_AllStates* pGraphicStates,
37 const CFX_Matrix* pParentMatrix,
38 CPDF_Type3Char* pType3Char,
39 int level) {
40 if (m_ParseState == CONTENT_PARSED || m_ParseState == CONTENT_PARSING)
41 return;
42
43 m_pParser = pdfium::MakeUnique<CPDF_ContentParser>();
44 m_pParser->Start(this, pGraphicStates, pParentMatrix, pType3Char, level);
45 m_ParseState = CONTENT_PARSING;
46 }
47
ParseContent(CPDF_AllStates * pGraphicStates,const CFX_Matrix * pParentMatrix,CPDF_Type3Char * pType3Char,int level)48 void CPDF_Form::ParseContent(CPDF_AllStates* pGraphicStates,
49 const CFX_Matrix* pParentMatrix,
50 CPDF_Type3Char* pType3Char,
51 int level) {
52 StartParse(pGraphicStates, pParentMatrix, pType3Char, level);
53 ContinueParse(nullptr);
54 }
55