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/*
* positionslider.cpp
*
* Copyright (C) 2004-2005 Giorgos Gousios
* Copyright (C) 2004-2005 Jürgen Kofler <kaffeine@gmx.net>
* Copyright (C) 2004-2005 Miguel Freitas
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <math.h>
#include "positionslider.h"
#include "positionslider.moc"
PositionSlider::PositionSlider(Qt::Orientation o, TQWidget *tqparent, const char* name) :
TQSlider(o, tqparent, name), m_userChange(false)
{
connect(this, TQT_SIGNAL(sliderPressed()), this ,TQT_SLOT(slotSliderPressed()));
connect(this, TQT_SIGNAL(sliderReleased()), this, TQT_SLOT(slotSliderReleased()));
installEventFilter(this);
}
PositionSlider::~PositionSlider()
{
}
void PositionSlider::setPosition(int val, bool changePosition)
{
if(!m_userChange)
setValue(val);
if(changePosition) {
setValue(val);
emit sliderMoved(val);
}
}
void PositionSlider::slotSliderPressed()
{
m_userChange = true;
emit signalStartSeeking();
}
void PositionSlider::slotSliderReleased()
{
emit sliderLastMove(this->value());
emit signalStopSeeking();
m_userChange = false;
}
void PositionSlider::wheelEvent(TQWheelEvent* e)
{
float offset = log10( TQABS(e->delta()) ) / 0.002;
int newVal = 0;
if (e->delta()>0)
newVal = value() - int(offset);
else
newVal = value() + int(offset);
if (newVal < 0) newVal = 0;
//setPosition(newVal, true);
emit sliderLastMove( newVal );
e->accept();
}
bool PositionSlider::eventFilter(TQObject *obj, TQEvent *ev)
{
if( TQT_BASE_OBJECT(obj) == TQT_BASE_OBJECT(this) && (ev->type() == TQEvent::MouseButtonPress || ev->type() == TQEvent::MouseButtonDblClick) ) {
TQMouseEvent *e = (TQMouseEvent *)ev;
TQRect r = sliderRect();
if( r.tqcontains( e->pos() ) || e->button() != Qt::LeftButton )
return false;
int range = maxValue() - minValue();
int pos = (orientation() ==Qt::Horizontal) ? e->pos().x() : e->pos().y();
int maxpos = (orientation() ==Qt::Horizontal) ? width() : height();
int value = pos * range / maxpos + minValue();
if (TQApplication::reverseLayout())
value = maxValue() - (value - minValue());
setPosition(value, true);
return true;
}
else {
return false;
}
}
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