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_allstates.h"
10 #include "core/fpdfapi/page/cpdf_form.h"
11 #include "core/fpdfapi/page/cpdf_pageobject.h"
12 #include "core/fpdfapi/parser/cpdf_dictionary.h"
13 #include "core/fpdfapi/parser/cpdf_object.h"
14 #include "core/fpdfapi/parser/cpdf_stream.h"
15 #include "third_party/base/ptr_util.h"
16
CPDF_TilingPattern(CPDF_Document * pDoc,CPDF_Object * pPatternObj,const CFX_Matrix & parentMatrix)17 CPDF_TilingPattern::CPDF_TilingPattern(CPDF_Document* pDoc,
18 CPDF_Object* pPatternObj,
19 const CFX_Matrix& parentMatrix)
20 : CPDF_Pattern(pDoc, pPatternObj, parentMatrix) {
21 ASSERT(document());
22 m_bColored = pattern_obj()->GetDict()->GetIntegerFor("PaintType") == 1;
23 SetPatternToFormMatrix();
24 }
25
26 CPDF_TilingPattern::~CPDF_TilingPattern() = default;
27
AsTilingPattern()28 CPDF_TilingPattern* CPDF_TilingPattern::AsTilingPattern() {
29 return this;
30 }
31
Load(CPDF_PageObject * pPageObj)32 std::unique_ptr<CPDF_Form> CPDF_TilingPattern::Load(CPDF_PageObject* pPageObj) {
33 const CPDF_Dictionary* pDict = pattern_obj()->GetDict();
34 m_bColored = pDict->GetIntegerFor("PaintType") == 1;
35 m_XStep = static_cast<float>(fabs(pDict->GetNumberFor("XStep")));
36 m_YStep = static_cast<float>(fabs(pDict->GetNumberFor("YStep")));
37
38 CPDF_Stream* pStream = pattern_obj()->AsStream();
39 if (!pStream)
40 return nullptr;
41
42 const CFX_Matrix& matrix = parent_matrix();
43 auto form = pdfium::MakeUnique<CPDF_Form>(document(), nullptr, pStream);
44
45 CPDF_AllStates allStates;
46 allStates.m_ColorState.Emplace();
47 allStates.m_GraphState.Emplace();
48 allStates.m_TextState.Emplace();
49 allStates.m_GeneralState = pPageObj->m_GeneralState;
50 form->ParseContent(&allStates, &matrix, nullptr);
51 m_BBox = pDict->GetRectFor("BBox");
52 return form;
53 }
54