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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/src/fxfa/app/xfa_rendercontext.h" | |
| 8 | |
| 9 #include "xfa/include/fxgraphics/fx_graphics.h" | |
| 10 #include "xfa/src/fxfa/app/xfa_ffwidget.h" | |
| 11 | |
| 12 #define XFA_RENDERCONTEXT_MaxCount 30 | |
| 13 | |
| 14 IXFA_RenderContext* XFA_RenderContext_Create() { | |
| 15 return new CXFA_RenderContext; | |
| 16 } | |
| 17 CXFA_RenderContext::CXFA_RenderContext() { | |
| 18 m_pWidgetIterator = NULL; | |
| 19 m_pWidget = NULL; | |
| 20 m_pPageView = NULL; | |
| 21 m_pGS = NULL; | |
| 22 m_dwStatus = 0; | |
| 23 m_matrix.SetIdentity(); | |
| 24 m_rtClipRect.Reset(); | |
| 25 } | |
| 26 CXFA_RenderContext::~CXFA_RenderContext() { | |
| 27 StopRender(); | |
| 28 } | |
| 29 int32_t CXFA_RenderContext::StartRender(IXFA_PageView* pPageView, | |
| 30 CFX_Graphics* pGS, | |
| 31 const CFX_Matrix& matrix, | |
| 32 const CXFA_RenderOptions& options) { | |
| 33 m_pPageView = pPageView; | |
| 34 m_pGS = pGS; | |
| 35 m_matrix = matrix; | |
| 36 m_options = options; | |
| 37 CFX_RectF rtPage; | |
| 38 pGS->GetClipRect(rtPage); | |
| 39 CFX_Matrix mtRes; | |
| 40 mtRes.SetReverse(matrix); | |
| 41 m_rtClipRect.Set(rtPage.left, rtPage.top, rtPage.width, rtPage.height); | |
| 42 mtRes.TransformRect(m_rtClipRect); | |
| 43 m_dwStatus = m_options.m_bHighlight ? XFA_WIDGETSTATUS_Highlight : 0; | |
| 44 FX_DWORD dwFilterType = XFA_WIDGETFILTER_Visible | XFA_WIDGETFILTER_AllType | | |
| 45 (m_options.m_bPrint ? XFA_WIDGETSTATUS_Printable | |
| 46 : XFA_WIDGETSTATUS_Viewable); | |
| 47 m_pWidgetIterator = | |
| 48 m_pPageView->CreateWidgetIterator(XFA_TRAVERSEWAY_Form, dwFilterType); | |
| 49 m_pWidget = m_pWidgetIterator->MoveToNext(); | |
| 50 return XFA_RENDERSTATUS_Ready; | |
| 51 } | |
| 52 int32_t CXFA_RenderContext::DoRender(IFX_Pause* pPause) { | |
| 53 int32_t iCount = 0; | |
| 54 while (m_pWidget) { | |
| 55 CXFA_FFWidget* pWidget = (CXFA_FFWidget*)m_pWidget; | |
| 56 CFX_RectF rtWidgetBox; | |
| 57 pWidget->GetBBox(rtWidgetBox, XFA_WIDGETSTATUS_Visible); | |
| 58 rtWidgetBox.width += 1; | |
| 59 rtWidgetBox.height += 1; | |
| 60 if (rtWidgetBox.IntersectWith(m_rtClipRect)) { | |
| 61 pWidget->RenderWidget(m_pGS, &m_matrix, m_dwStatus); | |
| 62 } | |
| 63 m_pWidget = m_pWidgetIterator->MoveToNext(); | |
| 64 iCount++; | |
| 65 if (iCount > XFA_RENDERCONTEXT_MaxCount && pPause && | |
| 66 pPause->NeedToPauseNow()) { | |
| 67 return XFA_RENDERSTATUS_ToBeContinued; | |
| 68 } | |
| 69 } | |
| 70 return XFA_RENDERSTATUS_Done; | |
| 71 } | |
| 72 void CXFA_RenderContext::StopRender() { | |
| 73 if (m_pWidgetIterator) { | |
| 74 m_pWidgetIterator->Release(); | |
| 75 m_pWidgetIterator = NULL; | |
| 76 } | |
| 77 } | |
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