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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fpdfapi/page/cpdf_form.h"
#include "core/fpdfapi/page/cpdf_contentparser.h"
#include "core/fpdfapi/page/cpdf_pageobject.h"
#include "core/fpdfapi/page/cpdf_pageobjectholder.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "third_party/base/ptr_util.h"
CPDF_Form::CPDF_Form(CPDF_Document* pDoc,
CPDF_Dictionary* pPageResources,
CPDF_Stream* pFormStream,
CPDF_Dictionary* pParentResources)
: CPDF_PageObjectHolder(pDoc, pFormStream->GetDict()) {
m_pFormStream = pFormStream;
m_pResources = m_pFormDict->GetDictFor("Resources");
m_pPageResources = pPageResources;
if (!m_pResources)
m_pResources = pParentResources;
if (!m_pResources)
m_pResources = pPageResources;
m_Transparency = CPDF_Transparency();
LoadTransInfo();
}
CPDF_Form::~CPDF_Form() {}
void CPDF_Form::StartParse(CPDF_AllStates* pGraphicStates,
const CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
std::set<const uint8_t*>* parsedSet) {
if (m_ParseState == CONTENT_PARSED || m_ParseState == CONTENT_PARSING)
return;
if (!parsedSet) {
if (!m_ParsedSet)
m_ParsedSet = pdfium::MakeUnique<std::set<const uint8_t*>>();
parsedSet = m_ParsedSet.get();
}
m_pParser = pdfium::MakeUnique<CPDF_ContentParser>(
this, pGraphicStates, pParentMatrix, pType3Char, parsedSet);
m_ParseState = CONTENT_PARSING;
}
void CPDF_Form::ParseContent() {
ParseContentWithParams(nullptr, nullptr, nullptr, nullptr);
}
void CPDF_Form::ParseContentWithParams(CPDF_AllStates* pGraphicStates,
const CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
std::set<const uint8_t*>* parsedSet) {
StartParse(pGraphicStates, pParentMatrix, pType3Char, parsedSet);
ContinueParse(nullptr);
}
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