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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 "xfa/fxfa/cxfa_ffimage.h"
      8 
      9 #include "xfa/fxfa/cxfa_ffapp.h"
     10 #include "xfa/fxfa/cxfa_ffdoc.h"
     11 #include "xfa/fxfa/cxfa_ffdraw.h"
     12 #include "xfa/fxfa/cxfa_ffpageview.h"
     13 #include "xfa/fxfa/cxfa_ffwidget.h"
     14 #include "xfa/fxfa/parser/cxfa_image.h"
     15 #include "xfa/fxfa/parser/cxfa_para.h"
     16 #include "xfa/fxfa/parser/cxfa_value.h"
     17 
     18 CXFA_FFImage::CXFA_FFImage(CXFA_Node* pNode) : CXFA_FFDraw(pNode) {}
     19 
     20 CXFA_FFImage::~CXFA_FFImage() {
     21   CXFA_FFImage::UnloadWidget();
     22 }
     23 
     24 bool CXFA_FFImage::IsLoaded() {
     25   return !!GetNode()->GetWidgetAcc()->GetImageImage();
     26 }
     27 
     28 bool CXFA_FFImage::LoadWidget() {
     29   if (GetNode()->GetWidgetAcc()->GetImageImage())
     30     return true;
     31 
     32   return GetNode()->GetWidgetAcc()->LoadImageImage(GetDoc())
     33              ? CXFA_FFDraw::LoadWidget()
     34              : false;
     35 }
     36 
     37 void CXFA_FFImage::UnloadWidget() {
     38   GetNode()->GetWidgetAcc()->SetImageImage(nullptr);
     39 }
     40 
     41 void CXFA_FFImage::RenderWidget(CXFA_Graphics* pGS,
     42                                 const CFX_Matrix& matrix,
     43                                 uint32_t dwStatus) {
     44   if (!IsMatchVisibleStatus(dwStatus))
     45     return;
     46 
     47   CFX_Matrix mtRotate = GetRotateMatrix();
     48   mtRotate.Concat(matrix);
     49 
     50   CXFA_FFWidget::RenderWidget(pGS, mtRotate, dwStatus);
     51 
     52   RetainPtr<CFX_DIBitmap> pDIBitmap =
     53       GetNode()->GetWidgetAcc()->GetImageImage();
     54   if (!pDIBitmap)
     55     return;
     56 
     57   CFX_RectF rtImage = GetRectWithoutRotate();
     58   CXFA_Margin* margin = m_pNode->GetMarginIfExists();
     59   if (margin)
     60     XFA_RectWithoutMargin(rtImage, margin);
     61 
     62   XFA_AttributeEnum iHorzAlign = XFA_AttributeEnum::Left;
     63   XFA_AttributeEnum iVertAlign = XFA_AttributeEnum::Top;
     64   CXFA_Para* para = m_pNode->GetParaIfExists();
     65   if (para) {
     66     iHorzAlign = para->GetHorizontalAlign();
     67     iVertAlign = para->GetVerticalAlign();
     68   }
     69 
     70   int32_t iImageXDpi = 0;
     71   int32_t iImageYDpi = 0;
     72   m_pNode->GetWidgetAcc()->GetImageDpi(iImageXDpi, iImageYDpi);
     73 
     74   auto* value = m_pNode->GetFormValueIfExists();
     75   CXFA_Image* image = value ? value->GetImageIfExists() : nullptr;
     76   if (image) {
     77     XFA_DrawImage(pGS, rtImage, mtRotate, pDIBitmap, image->GetAspect(),
     78                   iImageXDpi, iImageYDpi, iHorzAlign, iVertAlign);
     79   }
     80 }
     81