| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "xfa/fxfa/xfa_rendercontext.h" |
| |
| #include "xfa/fxfa/xfa_ffpageview.h" |
| #include "xfa/fxfa/xfa_ffwidget.h" |
| #include "xfa/fxgraphics/cfx_graphics.h" |
| |
| namespace { |
| |
| const int32_t kMaxCount = 30; |
| |
| } // namsepace |
| |
| CXFA_RenderContext::CXFA_RenderContext() |
| : m_pWidget(nullptr), m_pPageView(nullptr), m_pGS(nullptr), m_dwStatus(0) { |
| m_matrix.SetIdentity(); |
| m_rtClipRect.Reset(); |
| } |
| |
| CXFA_RenderContext::~CXFA_RenderContext() {} |
| |
| int32_t CXFA_RenderContext::StartRender(CXFA_FFPageView* pPageView, |
| CFX_Graphics* pGS, |
| const CFX_Matrix& matrix, |
| const CXFA_RenderOptions& options) { |
| m_pPageView = pPageView; |
| m_pGS = pGS; |
| m_matrix = matrix; |
| m_options = options; |
| |
| CFX_Matrix mtRes; |
| mtRes.SetReverse(matrix); |
| m_rtClipRect = pGS->GetClipRect(); |
| mtRes.TransformRect(m_rtClipRect); |
| m_dwStatus = m_options.m_bHighlight ? XFA_WidgetStatus_Highlight : 0; |
| uint32_t dwFilterType = XFA_WidgetStatus_Visible | |
| (m_options.m_bPrint ? XFA_WidgetStatus_Printable |
| : XFA_WidgetStatus_Viewable); |
| m_pWidgetIterator.reset( |
| m_pPageView->CreateWidgetIterator(XFA_TRAVERSEWAY_Form, dwFilterType)); |
| m_pWidget = m_pWidgetIterator->MoveToNext(); |
| return XFA_RENDERSTATUS_Ready; |
| } |
| |
| int32_t CXFA_RenderContext::DoRender(IFX_Pause* pPause) { |
| int32_t iCount = 0; |
| while (m_pWidget) { |
| CXFA_FFWidget* pWidget = m_pWidget; |
| CFX_RectF rtWidgetBox = pWidget->GetBBox(XFA_WidgetStatus_Visible); |
| rtWidgetBox.width += 1; |
| rtWidgetBox.height += 1; |
| if (rtWidgetBox.IntersectWith(m_rtClipRect)) |
| pWidget->RenderWidget(m_pGS, &m_matrix, m_dwStatus); |
| |
| m_pWidget = m_pWidgetIterator->MoveToNext(); |
| iCount++; |
| if (iCount > kMaxCount && pPause && pPause->NeedToPauseNow()) |
| return XFA_RENDERSTATUS_ToBeContinued; |
| } |
| return XFA_RENDERSTATUS_Done; |
| } |
| |
| void CXFA_RenderContext::StopRender() { |
| m_pWidgetIterator.reset(); |
| } |