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Diffstat (limited to 'xfa/fxfa/cxfa_rendercontext.cpp')
-rw-r--r-- | xfa/fxfa/cxfa_rendercontext.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/xfa/fxfa/cxfa_rendercontext.cpp b/xfa/fxfa/cxfa_rendercontext.cpp new file mode 100644 index 0000000000..ecb42918cb --- /dev/null +++ b/xfa/fxfa/cxfa_rendercontext.cpp @@ -0,0 +1,70 @@ +// 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/cxfa_rendercontext.h" + +#include "xfa/fxfa/cxfa_ffpageview.h" +#include "xfa/fxfa/cxfa_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(); +} |