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// 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/xfa_rendercontext.h"
#include "xfa/fxfa/xfa_ffpageview.h"
#include "xfa/fxfa/xfa_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_RectF rtPage;
pGS->GetClipRect(rtPage);
CFX_Matrix mtRes;
mtRes.SetReverse(matrix);
m_rtClipRect = rtPage;
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(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 > kMaxCount && pPause && pPause->NeedToPauseNow())
return XFA_RENDERSTATUS_ToBeContinued;
}
return XFA_RENDERSTATUS_Done;
}
void CXFA_RenderContext::StopRender() {
m_pWidgetIterator.reset();
}
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