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/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
// (c) 2001 hans_meine@gmx.net
#include "pitchablespeed.h"
#include <arts/reference.h>
#include <arts/soundserver.h>
#include <arts/kmedia2.h>
#include <noatun/app.h>
#include <noatun/player.h>
#include <noatun/engine.h>
#include <noatun/noatunarts.h>
#include <tqslider.h>
#include <tqlineedit.h>
#include <tqcheckbox.h>
#include <klocale.h>
#include <knuminput.h>
extern "C"
{
Plugin *create_plugin()
{
KGlobal::locale()->insertCatalogue("pitchablespeed");
return new PitchableSpeed();
}
}
const int PitchableSpeed::DEFAULT_OFFSET = 5;
const int PitchableSpeed::DEFAULT_RANGE = 10;
PitchableSpeed::PitchableSpeed() : Plugin(),
offset(DEFAULT_OFFSET),
range(DEFAULT_RANGE)
, frequenciesPreserved(false)
{
rangeInput->setRange(2,150,1,false);
rangeInput->setValue(range);
offsetInput->setRange(-5,15,1,false);
offsetInput->setValue(offset);
setupSliderRange();
connect(napp->player(), TQT_SIGNAL(changed()),
this, TQT_SLOT(newSong()));
connect(preserveFrequencies, TQT_SIGNAL(toggled(bool)),
this, TQT_SLOT(preserveFrequenciesChanged(bool)));
//show();
}
PitchableSpeed::~PitchableSpeed()
{
napp->pluginMenuRemove(pluginMenuItem);
Arts::PlayObject playobject= napp->player()->engine()->playObject();
Arts::PitchablePlayObject pitchable= Arts::DynamicCast(playobject);
if (!pitchable.isNull())
pitchable.speed(1.0);
if (frequenciesPreserved)
napp->player()->engine()->effectStack()->remove(pitchShiftEffectID);
}
void PitchableSpeed::newSong()
{
setSpeed();
Arts::PlayObject playobject= napp->player()->engine()->playObject();
Arts::PitchablePlayObject pitchable= Arts::DynamicCast(playobject);
slider->setEnabled(!pitchable.isNull());
}
float PitchableSpeed::sliderSpeed()
{
return 1.0f - slider->value()/1000.0f;
}
void PitchableSpeed::setSpeed()
{
Arts::PlayObject playobject= napp->player()->engine()->playObject();
Arts::PitchablePlayObject pitchable= Arts::DynamicCast(playobject);
float newSpeed= 1.0f;
if (!pitchable.isNull())
{
newSpeed= sliderSpeed();
pitchable.speed(newSpeed);
if (frequenciesPreserved)
pitchShift.speed(1.f/newSpeed);
}
TQString percentStr;
percentStr.setNum((newSpeed-1.f)*100.f,'f',1);
if (newSpeed<=0) percentStr.prepend('+').append(' ').append('%');
currentValEdit->setText(percentStr);
}
void PitchableSpeed::setupSliderRange()
{
int min= (-offset+range)<99 ? (-offset+range)*10 : 990;
slider->setRange((-offset-range)*10,min);
slider->setTickInterval(10);
}
void PitchableSpeed::speedChanged(int )
{
setSpeed();
}
void PitchableSpeed::offsetChanged(int newOffset)
{
offset= newOffset;
setupSliderRange();
}
void PitchableSpeed::rangeChanged(int newRange)
{
range= newRange;
setupSliderRange();
}
void PitchableSpeed::preserveFrequenciesChanged(bool preserveNow)
{
if (preserveNow==frequenciesPreserved)
return;
if (preserveNow)
{
pitchShift = Arts::DynamicCast(napp->player()->engine()->server()->
createObject("Arts::Synth_STEREO_PITCH_SHIFT"));
pitchShift.frequency(10.f); // TODO: might have to experiment a bit with this
pitchShift.speed(1.f/sliderSpeed());
pitchShift.start();
pitchShiftEffectID= napp->player()->engine()->effectStack()->
insertTop(pitchShift, "correcting pitch shift");
}
else
{
napp->player()->engine()->effectStack()->remove(pitchShiftEffectID);
pitchShift.stop();
pitchShift = Arts::Synth_STEREO_PITCH_SHIFT::null();
}
frequenciesPreserved= preserveNow;
}
void PitchableSpeed::init()
{
pluginMenuItem = napp->pluginMenuAdd(i18n("Toggle Speed Slider"),
TQT_TQOBJECT(this), TQT_SLOT(toggle(void)));
}
void PitchableSpeed::toggle(void)
{
show();
raise();
}
void PitchableSpeed::closeEvent(TQCloseEvent *)
{
hide();
}
#include "pitchablespeed.moc"
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