FreeCAD

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/**************************************************************************\
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 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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 * All rights reserved.
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 * 
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are
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 * met:
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 * 
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 * Redistributions of source code must retain the above copyright notice,
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 * this list of conditions and the following disclaimer.
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 * 
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 * Redistributions in binary form must reproduce the above copyright
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 * notice, this list of conditions and the following disclaimer in the
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 * documentation and/or other materials provided with the distribution.
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 * 
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 * Neither the name of the copyright holder nor the names of its
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 * contributors may be used to endorse or promote products derived from
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 * this software without specific prior written permission.
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 * 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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\**************************************************************************/
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/*!
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  \class SIM::Coin3D::Quarter::FocusHandler FocusHandler.h Quarter/devices/FocusHandler.h
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  \brief The FocusHandler event filter provides Coin with focus in and
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  focus out events, if installed on a QuarterWidget.
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*/
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#include <QEvent>
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#include <Inventor/SoEventManager.h>
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#include <Inventor/scxml/SoScXMLStateMachine.h>
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#include "QuarterWidget.h"
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#include "eventhandlers/FocusHandler.h"
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using namespace SIM::Coin3D::Quarter;
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FocusHandler::FocusHandler(QObject * parent)
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  : QObject(parent)
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{
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  this->quarterwidget = dynamic_cast<QuarterWidget *>(parent);
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}
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FocusHandler::~FocusHandler()
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{
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}
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bool 
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FocusHandler::eventFilter(QObject * obj, QEvent * event)
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{
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  switch (event->type()) {
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  case QEvent::FocusIn:
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    this->focusEvent("sim.coin3d.coin.InputFocus.IN");
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    break;
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  case QEvent::FocusOut:
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    this->focusEvent("sim.coin3d.coin.InputFocus.OUT");
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    break;
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  default:
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    break;
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  }
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  return QObject::eventFilter(obj, event);
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}
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void
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FocusHandler::focusEvent(const SbName & focusevent)
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{
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  SoEventManager * eventmanager = this->quarterwidget->getSoEventManager();
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  for (int c = 0; c < eventmanager->getNumSoScXMLStateMachines(); ++c) {
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    SoScXMLStateMachine * sostatemachine =
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      eventmanager->getSoScXMLStateMachine(c);
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    if (sostatemachine->isActive()) {
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      sostatemachine->queueEvent(focusevent);
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      sostatemachine->processEventQueue();
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    }
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  }
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}
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