You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
4.1 KiB
142 lines
4.1 KiB
15 years ago
|
/***************************************************************************
|
||
|
|
radioview_volume.cpp - description
|
||
|
|
-------------------
|
||
|
|
begin : Don Jun 19 2003
|
||
|
|
copyright : (C) 2003 by Martin Witte
|
||
|
|
email : witte@kawo1.rwth-aachen.de
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
/***************************************************************************
|
||
|
|
* *
|
||
|
|
* 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. *
|
||
|
|
* *
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
#include <math.h>
|
||
|
|
#include <qslider.h>
|
||
|
|
#include <qlayout.h>
|
||
|
|
#include <qaccel.h>
|
||
|
|
#include <qtooltip.h>
|
||
|
|
|
||
|
|
#include <klocale.h>
|
||
|
|
|
||
|
|
#include "radioview_volume.h"
|
||
|
|
#include "../../src/include/plugins.h"
|
||
|
|
|
||
|
|
#define SLIDER_MINVAL 0
|
||
|
|
#define SLIDER_MAXVAL 32768
|
||
|
|
#define SLIDER_RANGE (SLIDER_MAXVAL - SLIDER_MINVAL)
|
||
|
|
|
||
|
|
RadioViewVolume::RadioViewVolume(QWidget *parent, const QString &name)
|
||
|
|
: RadioViewElement (parent, name, clsRadioSound),
|
||
|
|
m_slider(NULL),
|
||
|
|
m_handlingSlot(false)
|
||
|
|
{
|
||
|
|
float v = 0;
|
||
|
|
SoundStreamID ssid = queryCurrentSoundStreamID();
|
||
|
|
sendLogDebug (QString ("RadioViewVolume: ssid=%1").arg(ssid.getID()));
|
||
|
|
queryPlaybackVolume(ssid, v);
|
||
|
|
m_slider = new QSlider(SLIDER_MINVAL,
|
||
|
|
SLIDER_MAXVAL,
|
||
|
|
SLIDER_RANGE/10,
|
||
|
|
getSlider4Volume(v),
|
||
|
|
Qt::Vertical, this);
|
||
|
|
|
||
|
|
QObject::connect(m_slider, SIGNAL(valueChanged(int)),
|
||
|
|
this, SLOT(slotVolumeChanged(int)));
|
||
|
|
|
||
|
|
QBoxLayout *l = new QBoxLayout(this, QBoxLayout::LeftToRight);
|
||
|
|
l->addWidget(m_slider);
|
||
|
|
|
||
|
|
// Tooltips
|
||
|
|
|
||
|
|
QToolTip::add(m_slider, i18n("Change Volume"));
|
||
|
|
|
||
|
|
// Accelerators
|
||
|
|
QAccel *Accel = new QAccel (this);
|
||
|
|
Accel->insertItem (Key_Up, 100);
|
||
|
|
Accel->insertItem (Key_Down, 101);
|
||
|
|
Accel->connectItem (100, m_slider, SLOT(subtractStep()));
|
||
|
|
Accel->connectItem (101, m_slider, SLOT(addStep()));
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
RadioViewVolume::~RadioViewVolume()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float RadioViewVolume::getUsability (Interface */*i*/) const
|
||
|
|
{
|
||
|
|
return 0.5; // there could be more features like mute control, capture settings, ...
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
bool RadioViewVolume::connectI (Interface *i)
|
||
|
|
{
|
||
|
|
bool a = IRadioDeviceClient::connectI(i);
|
||
|
|
bool b = ISoundStreamClient::connectI(i);
|
||
|
|
return a || b;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
bool RadioViewVolume::disconnectI(Interface *i)
|
||
|
|
{
|
||
|
|
bool a = IRadioDeviceClient::disconnectI(i);
|
||
|
|
bool b = ISoundStreamClient::disconnectI(i);
|
||
|
|
return a || b;
|
||
|
|
}
|
||
|
|
|
||
|
|
void RadioViewVolume::noticeConnectedI (ISoundStreamServer *s, bool pointer_valid)
|
||
|
|
{
|
||
|
|
ISoundStreamClient::noticeConnectedI(s, pointer_valid);
|
||
|
|
if (s && pointer_valid) {
|
||
|
|
s->register4_notifyPlaybackVolumeChanged(this);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ISoundStreamClient
|
||
|
|
|
||
|
|
bool RadioViewVolume::noticePlaybackVolumeChanged(SoundStreamID id, float v)
|
||
|
|
{
|
||
|
|
if (queryCurrentSoundStreamID() != id)
|
||
|
|
return false;
|
||
|
|
m_slider->setValue(getSlider4Volume(v));
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void RadioViewVolume::slotVolumeChanged(int val)
|
||
|
|
{
|
||
|
|
if (m_handlingSlot) return;
|
||
|
|
m_handlingSlot = true;
|
||
|
|
SoundStreamID ssid = queryCurrentSoundStreamID();
|
||
|
|
sendPlaybackVolume(ssid, getVolume4Slider(val));
|
||
|
|
m_handlingSlot = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int RadioViewVolume::getSlider4Volume(float volume)
|
||
|
|
{
|
||
|
|
if (volume >= 1) volume = 1;
|
||
|
|
if (volume < 0) volume = 0;
|
||
|
|
return SLIDER_MAXVAL - (int)rint(SLIDER_RANGE * volume);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float RadioViewVolume::getVolume4Slider(int sl)
|
||
|
|
{
|
||
|
|
if (sl > SLIDER_MAXVAL) sl = SLIDER_MAXVAL;
|
||
|
|
if (sl < SLIDER_MINVAL) sl = SLIDER_MINVAL;
|
||
|
|
return (float)(SLIDER_MAXVAL - sl) / (float)SLIDER_RANGE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#include "radioview_volume.moc"
|