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/*
* nonlimitedSynth - Backend to reacTIVision
*
* Copyright (c) 2007-2008 Karsten Krispin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "Gui/Base/Widget.h"
#include "Base/Types/Math.h"
Widget::Widget()
{
}
Widget::~Widget()
{}
bool Widget::isInWidget(const Point & point)
{
qreal height = this->height();
qreal width = this->width();
if((point.x() >= 0.0 && point.x() <= width) &&
(point.y() >= 0.0 && point.y() <= height))
return true;
return false;
}
int Widget::widgetGestureRecognition(FingerEvent &event)
{
if(!this->isInWidget(event.pos()))
event.setPosInvalid();
switch(event.type())
{
case FingerEvent::FingerAdded:
{
if(!event.pos().isValid())
return 0;
if(_fingerInputs.contains(event.finger()))
return 0;
_fingerInputs.insert(event.finger(), Path());
event.finger()->fingerRef();
_fingerInputs[event.finger()].append(event.pos());
event.setPath(_fingerInputs[event.finger()]);
if(event.pos().isValid())
this->__fingerOn(event);
return 1;
} // Case FingerAdded
case FingerEvent::FingerRemoved:
{
if(!_fingerInputs.contains(event.finger()))
return 0;
if(!event.pos().isValid())
_fingerInputs[event.finger()].append(event.pos());
event.setPath(_fingerInputs[event.finger()]);
this->__fingerOff(event);
if(event.path().isFirstValid() && event.path().isLastValid())
this->__fingerTouched(event);
_fingerInputs.remove(event.finger());
event.finger()->fingerDeref();
return 1;
} // Case FingerRemoves
case FingerEvent::FingerUpdated:
{
/* finger moved out of the widget */
if(_fingerInputs.contains(event.finger()) &&
!event.pos().isValid())
{
event.setPath(_fingerInputs[event.finger()]);
_fingerInputs[event.finger()].append(event.pos());
this->__fingerOff(event);
/* finger has crossed the object */
if(!event.path().isFirstValid() && !event.path().isLastValid())
{
this->__fingerCrossed(event);
}
_fingerInputs.remove(event.finger());
event.finger()->fingerDeref();
return 1;
}
if(!event.pos().isValid())
return 0;
/* finger moved in */
if(!_fingerInputs.contains(event.finger()))
{
_fingerInputs.insert(event.finger(), Path());
event.finger()->fingerRef();
event.setPath(_fingerInputs[event.finger()]);
Point invalidPoint; invalidPoint.setInvalid();
_fingerInputs[event.finger()].append(invalidPoint);
_fingerInputs[event.finger()].append(event.pos());
this->__fingerOn(event);
return 1;
}
/* finger is moving about the widget */
_fingerInputs[event.finger()].append(event.pos());
event.setPath(_fingerInputs[event.finger()]);
this->__fingerMove(event);
return 1;
} // Case FingerRemoved
default:
return 0;
} // switch
}
int Widget::fingerEvent(const FingerEvent & parentEvent)
{
FingerEvent event = this->mapFromParent(parentEvent);
/* we are hidden so we don't need to process anything */
if(this->hidden())
return 0;
int cnt = SurfaceObject::fingerEvent(event);
return this->widgetGestureRecognition(event)+cnt;
}
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