1 // Copyright 2016 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FPDFAPI_PAGE_CPDF_SHADINGPATTERN_H_ 8 #define CORE_FPDFAPI_PAGE_CPDF_SHADINGPATTERN_H_ 9 10 #include <memory> 11 #include <vector> 12 13 #include "core/fpdfapi/page/cpdf_countedobject.h" 14 #include "core/fpdfapi/page/cpdf_pattern.h" 15 #include "core/fxcrt/fx_system.h" 16 17 enum ShadingType { 18 kInvalidShading = 0, 19 kFunctionBasedShading = 1, 20 kAxialShading = 2, 21 kRadialShading = 3, 22 kFreeFormGouraudTriangleMeshShading = 4, 23 kLatticeFormGouraudTriangleMeshShading = 5, 24 kCoonsPatchMeshShading = 6, 25 kTensorProductPatchMeshShading = 7, 26 kMaxShading = 8 27 }; 28 29 class CFX_Matrix; 30 class CPDF_ColorSpace; 31 class CPDF_Document; 32 class CPDF_Function; 33 class CPDF_Object; 34 35 class CPDF_ShadingPattern : public CPDF_Pattern { 36 public: 37 CPDF_ShadingPattern(CPDF_Document* pDoc, 38 CPDF_Object* pPatternObj, 39 bool bShading, 40 const CFX_Matrix& parentMatrix); 41 ~CPDF_ShadingPattern() override; 42 43 CPDF_TilingPattern* AsTilingPattern() override; 44 CPDF_ShadingPattern* AsShadingPattern() override; 45 IsMeshShading()46 bool IsMeshShading() const { 47 return m_ShadingType == kFreeFormGouraudTriangleMeshShading || 48 m_ShadingType == kLatticeFormGouraudTriangleMeshShading || 49 m_ShadingType == kCoonsPatchMeshShading || 50 m_ShadingType == kTensorProductPatchMeshShading; 51 } 52 bool Load(); 53 GetShadingType()54 ShadingType GetShadingType() const { return m_ShadingType; } IsShadingObject()55 bool IsShadingObject() const { return m_bShadingObj; } GetShadingObject()56 CPDF_Object* GetShadingObject() const { return m_pShadingObj; } GetCS()57 CPDF_ColorSpace* GetCS() const { return m_pCS; } GetFuncs()58 const std::vector<std::unique_ptr<CPDF_Function>>& GetFuncs() const { 59 return m_pFunctions; 60 } 61 62 private: 63 ShadingType m_ShadingType; 64 bool m_bShadingObj; 65 CPDF_Object* m_pShadingObj; 66 67 // Still keep |m_pCS| as some CPDF_ColorSpace (name object) are not managed 68 // as counted objects. Refer to CPDF_DocPageData::GetColorSpace. 69 CPDF_ColorSpace* m_pCS; 70 71 CPDF_CountedColorSpace* m_pCountedCS; 72 std::vector<std::unique_ptr<CPDF_Function>> m_pFunctions; 73 }; 74 75 #endif // CORE_FPDFAPI_PAGE_CPDF_SHADINGPATTERN_H_ 76