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114 lines
2.7 KiB
114 lines
2.7 KiB
/*
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* positionslider.cpp
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*
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* Copyright (C) 2004-2005 Giorgos Gousios
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* Copyright (C) 2004-2005 Jürgen Kofler <kaffeine@gmx.net>
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* Copyright (C) 2004-2005 Miguel Freitas
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <math.h>
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#include "positionslider.h"
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#include "positionslider.moc"
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PositionSlider::PositionSlider(TQt::Orientation o, TQWidget *parent, const char* name) :
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TQSlider(o, parent, name), m_userChange(false)
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{
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connect(this, TQ_SIGNAL(sliderPressed()), this ,TQ_SLOT(slotSliderPressed()));
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connect(this, TQ_SIGNAL(sliderReleased()), this, TQ_SLOT(slotSliderReleased()));
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installEventFilter(this);
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}
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PositionSlider::~PositionSlider()
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{
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}
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void PositionSlider::setPosition(int val, bool changePosition)
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{
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if(!m_userChange)
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setValue(val);
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if(changePosition) {
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setValue(val);
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emit sliderMoved(val);
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}
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}
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void PositionSlider::slotSliderPressed()
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{
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m_userChange = true;
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emit signalStartSeeking();
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}
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void PositionSlider::slotSliderReleased()
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{
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emit sliderLastMove(this->value());
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emit signalStopSeeking();
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m_userChange = false;
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}
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void PositionSlider::wheelEvent(TQWheelEvent* e)
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{
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float offset = log10( TQABS(e->delta()) ) / 0.002;
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int newVal = 0;
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if (e->delta()>0)
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newVal = value() - int(offset);
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else
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newVal = value() + int(offset);
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if (newVal < 0) newVal = 0;
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//setPosition(newVal, true);
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emit sliderLastMove( newVal );
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e->accept();
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}
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bool PositionSlider::eventFilter(TQObject *obj, TQEvent *ev)
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{
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if( obj == this && (ev->type() == TQEvent::MouseButtonPress || ev->type() == TQEvent::MouseButtonDblClick) ) {
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TQMouseEvent *e = (TQMouseEvent *)ev;
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TQRect r = sliderRect();
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if( r.contains( e->pos() ) || e->button() != TQt::LeftButton )
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return false;
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int range = maxValue() - minValue();
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int pos = (orientation() == Horizontal) ? e->pos().x() : e->pos().y();
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int maxpos = (orientation() == Horizontal) ? width() : height();
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int value = pos * range / maxpos + minValue();
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if (TQApplication::reverseLayout())
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value = maxValue() - (value - minValue());
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setPosition(value, true);
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return true;
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}
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else {
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return false;
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}
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}
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