QmitkRenderingManager.cpp

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "QmitkRenderingManager.h"

#include "mitkBaseRenderer.h"
#include "mitkGeometry3D.h"
#include "mitkSliceNavigationController.h"

#include <QApplication>
#include <QTimer>

QmitkRenderingManager::QmitkRenderingManager()
{
  pendingTimerCallbacks = 0;
}

void QmitkRenderingManager::DoMonitorRendering()
{
}

void QmitkRenderingManager::DoFinishAbortRendering()
{
}

QmitkRenderingManager::~QmitkRenderingManager()
{
}

void QmitkRenderingManager::GenerateRenderingRequestEvent()
{
  QApplication::postEvent(this, new QmitkRenderingRequestEvent);
}

void QmitkRenderingManager::StartOrResetTimer()
{
  QTimer::singleShot(200, this, SLOT(TimerCallback()));
  pendingTimerCallbacks++;
}

void QmitkRenderingManager::TimerCallback()
{
  if (!--pendingTimerCallbacks)
    this->ExecutePendingHighResRenderingRequest();
}

bool QmitkRenderingManager::event(QEvent *event)
{
  if (event->type() == (QEvent::Type)QmitkRenderingRequestEvent::RenderingRequest)
  {
    // Directly process all pending rendering requests
    this->ExecutePendingRequests();
    return true;
  }

  return false;
}