xfa/fxfa/cxfa_rendercontext.cpp

// 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"

CXFA_RenderContext::CXFA_RenderContext(CXFA_FFPageView* pPageView,
                                       const CFX_RectF& clipRect,
                                       const CFX_Matrix& matrix)
    : m_pWidgetIterator(pPageView->CreateWidgetIterator(
          XFA_TRAVERSEWAY_Form,
          XFA_WidgetStatus_Visible | XFA_WidgetStatus_Viewable)),
      m_pWidget(m_pWidgetIterator->MoveToNext()),
      m_matrix(matrix),
      m_rtClipRect(clipRect) {}

CXFA_RenderContext::~CXFA_RenderContext() = default;

void CXFA_RenderContext::DoRender(CXFA_Graphics* gs) {
  while (m_pWidget) {
    CFX_RectF rtWidgetBox = m_pWidget->GetBBox(CXFA_FFWidget::kDoNotDrawFocus);
    ++rtWidgetBox.width;
    ++rtWidgetBox.height;
    if (rtWidgetBox.IntersectWith(m_rtClipRect))
      m_pWidget->RenderWidget(gs, m_matrix, CXFA_FFWidget::kHighlight);

    m_pWidget = m_pWidgetIterator->MoveToNext();
  }
}