xref: /aosp_15_r20/external/pdfium/core/fpdfapi/page/cpdf_shadingobject.cpp (revision 3ac0a46f773bac49fa9476ec2b1cf3f8da5ec3a4) 
1 // Copyright 2016 The PDFium Authors
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 #include "core/fpdfapi/page/cpdf_shadingobject.h"
8 
9 #include <utility>
10 
11 #include "core/fpdfapi/page/cpdf_shadingpattern.h"
12 
CPDF_ShadingObject(int32_t content_stream,RetainPtr<CPDF_ShadingPattern> pattern,const CFX_Matrix & matrix)13 CPDF_ShadingObject::CPDF_ShadingObject(int32_t content_stream,
14                                        RetainPtr<CPDF_ShadingPattern> pattern,
15                                        const CFX_Matrix& matrix)
16     : CPDF_PageObject(content_stream),
17       m_pShading(std::move(pattern)),
18       m_Matrix(matrix) {}
19 
20 CPDF_ShadingObject::~CPDF_ShadingObject() = default;
21 
GetType() const22 CPDF_PageObject::Type CPDF_ShadingObject::GetType() const {
23   return Type::kShading;
24 }
25 
Transform(const CFX_Matrix & matrix)26 void CPDF_ShadingObject::Transform(const CFX_Matrix& matrix) {
27   if (m_ClipPath.HasRef())
28     m_ClipPath.Transform(matrix);
29 
30   m_Matrix.Concat(matrix);
31   if (m_ClipPath.HasRef())
32     CalcBoundingBox();
33   else
34     SetRect(matrix.TransformRect(GetRect()));
35   SetDirty(true);
36 }
37 
IsShading() const38 bool CPDF_ShadingObject::IsShading() const {
39   return true;
40 }
41 
AsShading()42 CPDF_ShadingObject* CPDF_ShadingObject::AsShading() {
43   return this;
44 }
45 
AsShading() const46 const CPDF_ShadingObject* CPDF_ShadingObject::AsShading() const {
47   return this;
48 }
49 
CalcBoundingBox()50 void CPDF_ShadingObject::CalcBoundingBox() {
51   if (!m_ClipPath.HasRef())
52     return;
53   SetRect(m_ClipPath.GetClipBox());
54 }
55