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_imageobject.h" 8 9 #include <memory> 10 11 #include "core/fpdfapi/page/cpdf_docpagedata.h" 12 #include "core/fpdfapi/page/cpdf_image.h" 13 #include "core/fpdfapi/parser/cpdf_document.h" 14 15 CPDF_ImageObject::CPDF_ImageObject() 16 : m_pImage(nullptr), m_pImageOwned(false) {} 17 18 CPDF_ImageObject::~CPDF_ImageObject() { 19 Release(); 20 } 21 22 CPDF_PageObject::Type CPDF_ImageObject::GetType() const { 23 return IMAGE; 24 } 25 26 void CPDF_ImageObject::Transform(const CFX_Matrix& matrix) { 27 m_Matrix.Concat(matrix); 28 CalcBoundingBox(); 29 } 30 31 bool CPDF_ImageObject::IsImage() const { 32 return true; 33 } 34 35 CPDF_ImageObject* CPDF_ImageObject::AsImage() { 36 return this; 37 } 38 39 const CPDF_ImageObject* CPDF_ImageObject::AsImage() const { 40 return this; 41 } 42 43 void CPDF_ImageObject::CalcBoundingBox() { 44 m_Left = 0; 45 m_Bottom = 0; 46 m_Right = 1.0f; 47 m_Top = 1.0f; 48 m_Matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom); 49 } 50 51 void CPDF_ImageObject::SetOwnedImage(std::unique_ptr<CPDF_Image> pImage) { 52 Release(); 53 m_pImage = pImage.release(); 54 m_pImageOwned = true; 55 } 56 57 void CPDF_ImageObject::SetUnownedImage(CPDF_Image* pImage) { 58 Release(); 59 m_pImage = pImage; 60 m_pImageOwned = false; 61 } 62 63 void CPDF_ImageObject::Release() { 64 if (m_pImageOwned) { 65 delete m_pImage; 66 m_pImage = nullptr; 67 m_pImageOwned = false; 68 return; 69 } 70 71 if (!m_pImage) 72 return; 73 74 CPDF_DocPageData* pPageData = m_pImage->GetDocument()->GetPageData(); 75 pPageData->ReleaseImage(m_pImage->GetStream()->GetObjNum()); 76 m_pImage = nullptr; 77 } 78
