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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_ffimageedit.h"
      8 
      9 #include <utility>
     10 
     11 #include "third_party/base/ptr_util.h"
     12 #include "xfa/fwl/cfwl_app.h"
     13 #include "xfa/fwl/cfwl_messagemouse.h"
     14 #include "xfa/fwl/cfwl_notedriver.h"
     15 #include "xfa/fwl/cfwl_picturebox.h"
     16 #include "xfa/fxfa/cxfa_ffdoc.h"
     17 #include "xfa/fxfa/cxfa_ffdocview.h"
     18 #include "xfa/fxfa/cxfa_fffield.h"
     19 #include "xfa/fxfa/cxfa_ffpageview.h"
     20 #include "xfa/fxfa/cxfa_ffwidget.h"
     21 #include "xfa/fxfa/parser/cxfa_border.h"
     22 #include "xfa/fxfa/parser/cxfa_image.h"
     23 #include "xfa/fxfa/parser/cxfa_para.h"
     24 #include "xfa/fxfa/parser/cxfa_value.h"
     25 
     26 CXFA_FFImageEdit::CXFA_FFImageEdit(CXFA_Node* pNode)
     27     : CXFA_FFField(pNode), m_pOldDelegate(nullptr) {}
     28 
     29 CXFA_FFImageEdit::~CXFA_FFImageEdit() {
     30   CXFA_FFImageEdit::UnloadWidget();
     31 }
     32 
     33 bool CXFA_FFImageEdit::LoadWidget() {
     34   auto pNew = pdfium::MakeUnique<CFWL_PictureBox>(GetFWLApp());
     35   CFWL_PictureBox* pPictureBox = pNew.get();
     36   m_pNormalWidget = std::move(pNew);
     37   m_pNormalWidget->SetLayoutItem(this);
     38 
     39   CFWL_NoteDriver* pNoteDriver =
     40       m_pNormalWidget->GetOwnerApp()->GetNoteDriver();
     41   pNoteDriver->RegisterEventTarget(m_pNormalWidget.get(),
     42                                    m_pNormalWidget.get());
     43   m_pOldDelegate = pPictureBox->GetDelegate();
     44   pPictureBox->SetDelegate(this);
     45 
     46   CXFA_FFField::LoadWidget();
     47   if (!m_pNode->GetWidgetAcc()->GetImageEditImage())
     48     UpdateFWLData();
     49 
     50   return true;
     51 }
     52 
     53 void CXFA_FFImageEdit::UnloadWidget() {
     54   m_pNode->GetWidgetAcc()->SetImageEditImage(nullptr);
     55   CXFA_FFField::UnloadWidget();
     56 }
     57 
     58 void CXFA_FFImageEdit::RenderWidget(CXFA_Graphics* pGS,
     59                                     const CFX_Matrix& matrix,
     60                                     uint32_t dwStatus) {
     61   if (!IsMatchVisibleStatus(dwStatus))
     62     return;
     63 
     64   CFX_Matrix mtRotate = GetRotateMatrix();
     65   mtRotate.Concat(matrix);
     66 
     67   CXFA_FFWidget::RenderWidget(pGS, mtRotate, dwStatus);
     68   DrawBorder(pGS, m_pNode->GetWidgetAcc()->GetUIBorder(), m_rtUI, mtRotate);
     69   RenderCaption(pGS, &mtRotate);
     70   RetainPtr<CFX_DIBitmap> pDIBitmap =
     71       m_pNode->GetWidgetAcc()->GetImageEditImage();
     72   if (!pDIBitmap)
     73     return;
     74 
     75   CFX_RectF rtImage = m_pNormalWidget->GetWidgetRect();
     76   XFA_AttributeEnum iHorzAlign = XFA_AttributeEnum::Left;
     77   XFA_AttributeEnum iVertAlign = XFA_AttributeEnum::Top;
     78   CXFA_Para* para = m_pNode->GetParaIfExists();
     79   if (para) {
     80     iHorzAlign = para->GetHorizontalAlign();
     81     iVertAlign = para->GetVerticalAlign();
     82   }
     83 
     84   XFA_AttributeEnum iAspect = XFA_AttributeEnum::Fit;
     85   CXFA_Value* value = m_pNode->GetFormValueIfExists();
     86   if (value) {
     87     CXFA_Image* image = value->GetImageIfExists();
     88     if (image)
     89       iAspect = image->GetAspect();
     90   }
     91 
     92   int32_t iImageXDpi = 0;
     93   int32_t iImageYDpi = 0;
     94   m_pNode->GetWidgetAcc()->GetImageEditDpi(iImageXDpi, iImageYDpi);
     95   XFA_DrawImage(pGS, rtImage, mtRotate, pDIBitmap, iAspect, iImageXDpi,
     96                 iImageYDpi, iHorzAlign, iVertAlign);
     97 }
     98 
     99 bool CXFA_FFImageEdit::OnLButtonDown(uint32_t dwFlags,
    100                                      const CFX_PointF& point) {
    101   if (!m_pNode->IsOpenAccess())
    102     return false;
    103   if (!PtInActiveRect(point))
    104     return false;
    105 
    106   SetButtonDown(true);
    107 
    108   CFWL_MessageMouse ms(nullptr, m_pNormalWidget.get());
    109   ms.m_dwCmd = FWL_MouseCommand::LeftButtonDown;
    110   ms.m_dwFlags = dwFlags;
    111   ms.m_pos = FWLToClient(point);
    112   TranslateFWLMessage(&ms);
    113   return true;
    114 }
    115 
    116 void CXFA_FFImageEdit::SetFWLRect() {
    117   if (!m_pNormalWidget)
    118     return;
    119 
    120   CFX_RectF rtUIMargin = m_pNode->GetWidgetAcc()->GetUIMargin();
    121   CFX_RectF rtImage(m_rtUI);
    122   rtImage.Deflate(rtUIMargin.left, rtUIMargin.top, rtUIMargin.width,
    123                   rtUIMargin.height);
    124   m_pNormalWidget->SetWidgetRect(rtImage);
    125 }
    126 
    127 bool CXFA_FFImageEdit::CommitData() {
    128   return true;
    129 }
    130 
    131 bool CXFA_FFImageEdit::UpdateFWLData() {
    132   m_pNode->GetWidgetAcc()->SetImageEditImage(nullptr);
    133   m_pNode->GetWidgetAcc()->LoadImageEditImage(GetDoc());
    134   return true;
    135 }
    136 
    137 void CXFA_FFImageEdit::OnProcessMessage(CFWL_Message* pMessage) {
    138   m_pOldDelegate->OnProcessMessage(pMessage);
    139 }
    140 
    141 void CXFA_FFImageEdit::OnProcessEvent(CFWL_Event* pEvent) {
    142   CXFA_FFField::OnProcessEvent(pEvent);
    143   m_pOldDelegate->OnProcessEvent(pEvent);
    144 }
    145 
    146 void CXFA_FFImageEdit::OnDrawWidget(CXFA_Graphics* pGraphics,
    147                                     const CFX_Matrix& matrix) {
    148   m_pOldDelegate->OnDrawWidget(pGraphics, matrix);
    149 }
    150 
    151 FormFieldType CXFA_FFImageEdit::GetFormFieldType() {
    152   return FormFieldType::kXFA_ImageField;
    153 }
    154