| // 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/src/fxfa/src/app/xfa_rendercontext.h" |
| |
| #include "xfa/include/fxgraphics/fx_graphics.h" |
| #include "xfa/src/fxfa/src/app/xfa_ffwidget.h" |
| |
| #define XFA_RENDERCONTEXT_MaxCount 30 |
| |
| IXFA_RenderContext* XFA_RenderContext_Create() { |
| return new CXFA_RenderContext; |
| } |
| CXFA_RenderContext::CXFA_RenderContext() { |
| m_pWidgetIterator = NULL; |
| m_pWidget = NULL; |
| m_pPageView = NULL; |
| m_pGS = NULL; |
| m_dwStatus = 0; |
| m_matrix.SetIdentity(); |
| m_rtClipRect.Reset(); |
| } |
| CXFA_RenderContext::~CXFA_RenderContext() { |
| StopRender(); |
| } |
| int32_t CXFA_RenderContext::StartRender(IXFA_PageView* 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_RectF rtPage; |
| pGS->GetClipRect(rtPage); |
| CFX_Matrix mtRes; |
| mtRes.SetReverse(matrix); |
| m_rtClipRect.Set(rtPage.left, rtPage.top, rtPage.width, rtPage.height); |
| mtRes.TransformRect(m_rtClipRect); |
| m_dwStatus = m_options.m_bHighlight ? XFA_WIDGETSTATUS_Highlight : 0; |
| FX_DWORD dwFilterType = XFA_WIDGETFILTER_Visible | XFA_WIDGETFILTER_AllType | |
| (m_options.m_bPrint ? XFA_WIDGETSTATUS_Printable |
| : XFA_WIDGETSTATUS_Viewable); |
| m_pWidgetIterator = |
| 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 = (CXFA_FFWidget*)m_pWidget; |
| CFX_RectF rtWidgetBox; |
| pWidget->GetBBox(rtWidgetBox, 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 > XFA_RENDERCONTEXT_MaxCount && pPause && |
| pPause->NeedToPauseNow()) { |
| return XFA_RENDERSTATUS_ToBeContinued; |
| } |
| } |
| return XFA_RENDERSTATUS_Done; |
| } |
| void CXFA_RenderContext::StopRender() { |
| if (m_pWidgetIterator) { |
| m_pWidgetIterator->Release(); |
| m_pWidgetIterator = NULL; |
| } |
| } |