// 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/src/foxitlib.h" | |
#include "xfa/src/fxfa/src/common/xfa_common.h" | |
#include "xfa_rendercontext.h" | |
#include "xfa_ffwidget.h" | |
#define XFA_RENDERCONTEXT_MaxCount 30 | |
IXFA_RenderContext* XFA_RenderContext_Create() { | |
return new CXFA_RenderContext; | |
} | |
CXFA_RenderContext::CXFA_RenderContext() { | |
m_pWidgetIterator = NULL; | |
m_pWidget = NULL; | |
m_pPageView = NULL; | |
m_pGS = NULL; | |
m_dwStatus = 0; | |
m_matrix.SetIdentity(); | |
m_rtClipRect.Reset(); | |
} | |
CXFA_RenderContext::~CXFA_RenderContext() { | |
StopRender(); | |
} | |
int32_t CXFA_RenderContext::StartRender(IXFA_PageView* 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.Set(rtPage.left, rtPage.top, rtPage.width, rtPage.height); | |
mtRes.TransformRect(m_rtClipRect); | |
m_dwStatus = m_options.m_bHighlight ? XFA_WIDGETSTATUS_Highlight : 0; | |
FX_DWORD dwFilterType = XFA_WIDGETFILTER_Visible | XFA_WIDGETFILTER_AllType | | |
(m_options.m_bPrint ? XFA_WIDGETSTATUS_Printable | |
: XFA_WIDGETSTATUS_Viewable); | |
m_pWidgetIterator = | |
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 = (CXFA_FFWidget*)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 > XFA_RENDERCONTEXT_MaxCount && pPause && | |
pPause->NeedToPauseNow()) { | |
return XFA_RENDERSTATUS_ToBeContinued; | |
} | |
} | |
return XFA_RENDERSTATUS_Done; | |
} | |
void CXFA_RenderContext::StopRender() { | |
if (m_pWidgetIterator) { | |
m_pWidgetIterator->Release(); | |
m_pWidgetIterator = NULL; | |
} | |
} |