// 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/include/xfa_rendercontext.h"
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#include "xfa/fxfa/include/xfa_ffpageview.h"
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#include "xfa/fxfa/include/xfa_ffwidget.h"
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#include "xfa/fxgraphics/include/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_RectF rtPage;
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pGS->GetClipRect(rtPage);
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CFX_Matrix mtRes;
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mtRes.SetReverse(matrix);
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m_rtClipRect.Set(rtPage.left, rtPage.top, rtPage.width, rtPage.height);
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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;
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pWidget->GetBBox(rtWidgetBox, 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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