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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_PATTERN_H_
#define CORE_FPDFAPI_PAGE_CPDF_PATTERN_H_
#include "core/fpdfapi/page/cpdf_countedobject.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
class CPDF_Document;
class CPDF_Object;
class CPDF_ShadingPattern;
class CPDF_TilingPattern;
class CPDF_Pattern {
public:
enum PatternType { TILING = 1, SHADING };
virtual ~CPDF_Pattern();
virtual CPDF_TilingPattern* AsTilingPattern() = 0;
virtual CPDF_ShadingPattern* AsShadingPattern() = 0;
// All the getters that return pointers return non-NULL pointers.
CPDF_Document* document() const { return m_pDocument.Get(); }
CPDF_Object* pattern_obj() { return m_pPatternObj.Get(); }
const CPDF_Object* pattern_obj() const { return m_pPatternObj.Get(); }
CFX_Matrix* pattern_to_form() { return &m_Pattern2Form; }
const CFX_Matrix& parent_matrix() const { return m_ParentMatrix; }
protected:
CPDF_Pattern(CPDF_Document* pDoc,
CPDF_Object* pObj,
const CFX_Matrix& parentMatrix);
void SetPatternToFormMatrix();
private:
UnownedPtr<CPDF_Document> const m_pDocument;
UnownedPtr<CPDF_Object> const m_pPatternObj;
CFX_Matrix m_Pattern2Form;
const CFX_Matrix m_ParentMatrix;
};
using CPDF_CountedPattern = CPDF_CountedObject<CPDF_Pattern>;
#endif // CORE_FPDFAPI_PAGE_CPDF_PATTERN_H_
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