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