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 #include "core/fpdfapi/page/cpdf_tilingpattern.h"
8
9 #include "core/fpdfapi/page/cpdf_form.h"
10 #include "core/fpdfapi/parser/cpdf_dictionary.h"
11 #include "core/fpdfapi/parser/cpdf_object.h"
12 #include "core/fpdfapi/parser/cpdf_stream.h"
13 #include "third_party/base/ptr_util.h"
14
CPDF_TilingPattern(CPDF_Document * pDoc,CPDF_Object * pPatternObj,const CFX_Matrix & parentMatrix)15 CPDF_TilingPattern::CPDF_TilingPattern(CPDF_Document* pDoc,
16 CPDF_Object* pPatternObj,
17 const CFX_Matrix& parentMatrix)
18 : CPDF_Pattern(TILING, pDoc, pPatternObj, parentMatrix) {
19 CPDF_Dictionary* pDict = m_pPatternObj->GetDict();
20 m_Pattern2Form = pDict->GetMatrixFor("Matrix");
21 m_bColored = pDict->GetIntegerFor("PaintType") == 1;
22 m_Pattern2Form.Concat(parentMatrix);
23 }
24
~CPDF_TilingPattern()25 CPDF_TilingPattern::~CPDF_TilingPattern() {}
26
AsTilingPattern()27 CPDF_TilingPattern* CPDF_TilingPattern::AsTilingPattern() {
28 return this;
29 }
30
AsShadingPattern()31 CPDF_ShadingPattern* CPDF_TilingPattern::AsShadingPattern() {
32 return nullptr;
33 }
34
Load()35 bool CPDF_TilingPattern::Load() {
36 if (m_pForm)
37 return true;
38
39 CPDF_Dictionary* pDict = m_pPatternObj->GetDict();
40 if (!pDict)
41 return false;
42
43 m_bColored = pDict->GetIntegerFor("PaintType") == 1;
44 m_XStep = (FX_FLOAT)FXSYS_fabs(pDict->GetNumberFor("XStep"));
45 m_YStep = (FX_FLOAT)FXSYS_fabs(pDict->GetNumberFor("YStep"));
46
47 CPDF_Stream* pStream = m_pPatternObj->AsStream();
48 if (!pStream)
49 return false;
50
51 m_pForm = pdfium::MakeUnique<CPDF_Form>(m_pDocument, nullptr, pStream);
52 m_pForm->ParseContent(nullptr, &m_ParentMatrix, nullptr);
53 m_BBox = pDict->GetRectFor("BBox");
54 return true;
55 }
56