// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FPDFAPI_FPDF_PAGE_CPDF_SHADINGPATTERN_H_
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#define CORE_FPDFAPI_FPDF_PAGE_CPDF_SHADINGPATTERN_H_
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#include <memory>
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#include <vector>
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#include "core/fpdfapi/fpdf_page/cpdf_countedobject.h"
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#include "core/fpdfapi/fpdf_page/cpdf_pattern.h"
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#include "core/fxcrt/include/fx_system.h"
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enum ShadingType {
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kInvalidShading = 0,
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kFunctionBasedShading = 1,
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kAxialShading = 2,
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kRadialShading = 3,
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kFreeFormGouraudTriangleMeshShading = 4,
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kLatticeFormGouraudTriangleMeshShading = 5,
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kCoonsPatchMeshShading = 6,
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kTensorProductPatchMeshShading = 7,
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kMaxShading = 8
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};
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class CFX_Matrix;
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class CPDF_ColorSpace;
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class CPDF_Document;
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class CPDF_Function;
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class CPDF_Object;
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class CPDF_ShadingPattern : public CPDF_Pattern {
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public:
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CPDF_ShadingPattern(CPDF_Document* pDoc,
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CPDF_Object* pPatternObj,
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FX_BOOL bShading,
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const CFX_Matrix& parentMatrix);
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~CPDF_ShadingPattern() override;
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CPDF_TilingPattern* AsTilingPattern() override;
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CPDF_ShadingPattern* AsShadingPattern() override;
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bool IsMeshShading() const {
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return m_ShadingType == kFreeFormGouraudTriangleMeshShading ||
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m_ShadingType == kLatticeFormGouraudTriangleMeshShading ||
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m_ShadingType == kCoonsPatchMeshShading ||
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m_ShadingType == kTensorProductPatchMeshShading;
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}
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bool Load();
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ShadingType GetShadingType() const { return m_ShadingType; }
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FX_BOOL IsShadingObject() const { return m_bShadingObj; }
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CPDF_Object* GetShadingObject() const { return m_pShadingObj; }
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CPDF_ColorSpace* GetCS() const { return m_pCS; }
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const std::vector<std::unique_ptr<CPDF_Function>>& GetFuncs() const {
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return m_pFunctions;
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}
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private:
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ShadingType m_ShadingType;
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FX_BOOL m_bShadingObj;
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CPDF_Object* m_pShadingObj;
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// Still keep |m_pCS| as some CPDF_ColorSpace (name object) are not managed
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// as counted objects. Refer to CPDF_DocPageData::GetColorSpace.
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CPDF_ColorSpace* m_pCS;
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CPDF_CountedColorSpace* m_pCountedCS;
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std::vector<std::unique_ptr<CPDF_Function>> m_pFunctions;
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};
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#endif // CORE_FPDFAPI_FPDF_PAGE_CPDF_SHADINGPATTERN_H_
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