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      1 // Copyright 2014 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 "../../../include/fpdfapi/fpdf_page.h"
      8 #include "../../../include/fpdfapi/fpdf_pageobj.h"
      9 #include "pageint.h"
     10 CPDF_ImageObject::CPDF_ImageObject()
     11 {
     12     m_pImage = NULL;
     13     m_Type = PDFPAGE_IMAGE;
     14 }
     15 CPDF_ImageObject::~CPDF_ImageObject()
     16 {
     17     if (!m_pImage) {
     18         return;
     19     }
     20     if (m_pImage->IsInline() || (m_pImage->GetStream() && m_pImage->GetStream()->GetObjNum() == 0)) {
     21         delete m_pImage;
     22     } else {
     23         m_pImage->GetDocument()->GetPageData()->ReleaseImage(m_pImage->GetStream());
     24     }
     25 }
     26 void CPDF_ImageObject::CopyData(const CPDF_PageObject* pSrc)
     27 {
     28     const CPDF_ImageObject* pSrcObj = (const CPDF_ImageObject*)pSrc;
     29     if (m_pImage) {
     30         m_pImage->Release();
     31     }
     32     m_pImage = pSrcObj->m_pImage->Clone();
     33     m_Matrix = pSrcObj->m_Matrix;
     34 }
     35 void CPDF_ImageObject::Transform(const CFX_AffineMatrix& matrix)
     36 {
     37     m_Matrix.Concat(matrix);
     38     CalcBoundingBox();
     39 }
     40 void CPDF_ImageObject::CalcBoundingBox()
     41 {
     42     m_Left = m_Bottom = 0;
     43     m_Right = m_Top = 1.0f;
     44     m_Matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
     45 }
     46 void CPDF_Image::Release()
     47 {
     48     if (m_bInline || (m_pStream && m_pStream->GetObjNum() == 0)) {
     49         delete this;
     50     }
     51 }
     52 CPDF_Image* CPDF_Image::Clone()
     53 {
     54     if (m_pStream->GetObjNum()) {
     55         return m_pDocument->GetPageData()->GetImage(m_pStream);
     56     }
     57     CPDF_Image* pImage = FX_NEW CPDF_Image(m_pDocument);
     58     pImage->LoadImageF((CPDF_Stream*)((CPDF_Object*)m_pStream)->Clone(), m_bInline);
     59     if (m_bInline) {
     60         CPDF_Dictionary *pInlineDict = (CPDF_Dictionary*)m_pInlineDict->Clone(TRUE);
     61         pImage->SetInlineDict(pInlineDict);
     62     }
     63     return pImage;
     64 }
     65 CPDF_Image::CPDF_Image(CPDF_Document* pDoc)
     66 {
     67     m_pDocument = pDoc;
     68     m_pStream = NULL;
     69     m_pOC = NULL;
     70     m_bInline = FALSE;
     71     m_pInlineDict = NULL;
     72     m_pDIBSource = NULL;
     73     m_pMask = NULL;
     74     m_MatteColor = 0;
     75 }
     76 CPDF_Image::~CPDF_Image()
     77 {
     78     if (m_bInline) {
     79         if (m_pStream) {
     80 #ifndef FOXIT_CHROME_BUILD
     81             CPDF_Dictionary* pDict = m_pStream->GetDict();
     82             if (pDict) {
     83                 CPDF_Object* pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
     84                 if (pCSObj && m_pDocument) {
     85                     m_pDocument->RemoveColorSpaceFromPageData(pCSObj);
     86                 }
     87             }
     88 #endif
     89             m_pStream->Release();
     90         }
     91         if (m_pInlineDict) {
     92             m_pInlineDict->Release();
     93         }
     94     }
     95 }
     96 FX_BOOL CPDF_Image::LoadImageF(CPDF_Stream* pStream, FX_BOOL bInline)
     97 {
     98     m_pStream = pStream;
     99     if (m_bInline && m_pInlineDict) {
    100         m_pInlineDict->Release();
    101         m_pInlineDict = NULL;
    102     }
    103     m_bInline = bInline;
    104     CPDF_Dictionary* pDict = pStream->GetDict();
    105     if (m_bInline) {
    106         m_pInlineDict = (CPDF_Dictionary*)pDict->Clone();
    107     }
    108     m_pOC = pDict->GetDict(FX_BSTRC("OC"));
    109     m_bIsMask = !pDict->KeyExist(FX_BSTRC("ColorSpace")) || pDict->GetInteger(FX_BSTRC("ImageMask"));
    110 #ifndef _FPDFAPI_MINI_
    111     m_bInterpolate = pDict->GetInteger(FX_BSTRC("Interpolate"));
    112 #endif
    113     m_Height = pDict->GetInteger(FX_BSTRC("Height"));
    114     m_Width = pDict->GetInteger(FX_BSTRC("Width"));
    115     return TRUE;
    116 }
    117