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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_FPDF_PAGE_CPDF_SHADINGPATTERN_H_
#define CORE_FPDFAPI_FPDF_PAGE_CPDF_SHADINGPATTERN_H_
#include "core/fpdfapi/fpdf_page/cpdf_countedobject.h"
#include "core/fpdfapi/fpdf_page/cpdf_pattern.h"
#include "core/fpdfapi/fpdf_page/pageint.h"
#include "core/fxcrt/include/fx_system.h"
enum ShadingType {
kInvalidShading = 0,
kFunctionBasedShading = 1,
kAxialShading = 2,
kRadialShading = 3,
kFreeFormGouraudTriangleMeshShading = 4,
kLatticeFormGouraudTriangleMeshShading = 5,
kCoonsPatchMeshShading = 6,
kTensorProductPatchMeshShading = 7,
kMaxShading = 8
};
class CFX_Matrix;
class CPDF_ColorSpace;
class CPDF_Document;
class CPDF_Object;
class CPDF_ShadingPattern : public CPDF_Pattern {
public:
CPDF_ShadingPattern(CPDF_Document* pDoc,
CPDF_Object* pPatternObj,
FX_BOOL bShading,
const CFX_Matrix& parentMatrix);
~CPDF_ShadingPattern() override;
CPDF_TilingPattern* AsTilingPattern() override { return nullptr; }
CPDF_ShadingPattern* AsShadingPattern() override { return this; }
bool IsMeshShading() const {
return m_ShadingType == kFreeFormGouraudTriangleMeshShading ||
m_ShadingType == kLatticeFormGouraudTriangleMeshShading ||
m_ShadingType == kCoonsPatchMeshShading ||
m_ShadingType == kTensorProductPatchMeshShading;
}
FX_BOOL Load();
ShadingType m_ShadingType;
FX_BOOL m_bShadingObj;
CPDF_Object* m_pShadingObj;
// Still keep |m_pCS| as some CPDF_ColorSpace (name object) are not managed
// as counted objects. Refer to CPDF_DocPageData::GetColorSpace.
CPDF_ColorSpace* m_pCS;
CPDF_CountedColorSpace* m_pCountedCS;
CPDF_Function* m_pFunctions[4];
size_t m_nFuncs;
};
#endif // CORE_FPDFAPI_FPDF_PAGE_CPDF_SHADINGPATTERN_H_
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