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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
#ifndef CORE_FPDFAPI_PAGE_CPDF_FORM_H_
#define CORE_FPDFAPI_PAGE_CPDF_FORM_H_
#include <memory>
#include <set>
#include <utility>
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fpdfapi/page/cpdf_pageobjectholder.h"
class CFX_Matrix;
class CPDF_AllStates;
class CPDF_Dictionary;
class CPDF_Document;
class CPDF_ImageObject;
class CPDF_Stream;
class CPDF_Type3Char;
class CPDF_Form final : public CPDF_PageObjectHolder,
public CPDF_Font::FormIface {
public:
// Helper method to choose the first non-null resources dictionary.
static CPDF_Dictionary* ChooseResourcesDict(CPDF_Dictionary* pResources,
CPDF_Dictionary* pParentResources,
CPDF_Dictionary* pPageResources);
CPDF_Form(CPDF_Document* pDocument,
CPDF_Dictionary* pPageResources,
CPDF_Stream* pFormStream);
CPDF_Form(CPDF_Document* pDocument,
CPDF_Dictionary* pPageResources,
CPDF_Stream* pFormStream,
CPDF_Dictionary* pParentResources);
~CPDF_Form() override;
// CPDF_Font::FormIface:
void ParseContentForType3Char(CPDF_Type3Char* pType3Char) override;
bool HasPageObjects() const override;
CFX_FloatRect CalcBoundingBox() const override;
Optional<std::pair<RetainPtr<CFX_DIBitmap>, CFX_Matrix>>
GetBitmapAndMatrixFromSoleImageOfForm() const override;
void ParseContent();
void ParseContent(const CPDF_AllStates* pGraphicStates,
const CFX_Matrix* pParentMatrix,
std::set<const uint8_t*>* pParsedSet);
const CPDF_Stream* GetStream() const;
private:
void ParseContentInternal(const CPDF_AllStates* pGraphicStates,
const CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
std::set<const uint8_t*>* pParsedSet);
std::unique_ptr<std::set<const uint8_t*>> m_ParsedSet;
RetainPtr<CPDF_Stream> const m_pFormStream;
};
#endif // CORE_FPDFAPI_PAGE_CPDF_FORM_H_