Rivendellaudio/rdlibrary/disk_gauge.cpp
Fred Gleason 640440ac64 2019-10-03 Fred Gleason <fredg@paravelsystems.com>
* Refactored rdlibrary(1) to use the 'RDDialog' and 'RDWidget'
	base classes.
2019-10-03 18:51:32 -04:00

131 lines
3.5 KiB
C++

// disk_gauge.cpp
//
// Disk Gauge Widget for RDLibrary.
//
// (C) Copyright 2002-2019 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#include <sys/vfs.h>
#include <qfontmetrics.h>
#include <rd.h>
#include <rdapplication.h>
#include <rdconfig.h>
#include <rdaudiostore.h>
#include "disk_gauge.h"
#include "globals.h"
DiskGauge::DiskGauge(int samp_rate,int chans,QWidget *parent)
: RDWidget(parent)
{
disk_sample_rate=samp_rate;
disk_channels=chans;
disk_label=new QLabel(tr("Free")+":",this);
disk_label->setGeometry(0,0,50,sizeHint().height());
disk_label->setFont(labelFont());
disk_label->setAlignment(Qt::AlignRight|Qt::AlignVCenter);
disk_label->setDisabled(true);
disk_bar=new QProgressBar(this);
disk_bar->setGeometry(55,0,sizeHint().width()-55,sizeHint().height());
disk_bar->setDisabled(true);
disk_space_label=new QLabel(this);
disk_space_label->setFont(labelFont());
disk_space_label->setAlignment(Qt::AlignCenter);
disk_space_label->setDisabled(true);
/*
update();
*/
disk_timer=new QTimer(this);
connect(disk_timer,SIGNAL(timeout()),this,SLOT(update()));
disk_timer->start(100);
}
QSize DiskGauge::sizeHint() const
{
return QSize(160,40);
}
QSizePolicy DiskGauge::sizePolicy() const
{
return QSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
}
void DiskGauge::update()
{
if(rda->user()->name().isEmpty()) {
return;
}
RDAudioStore::ErrorCode conv_err;
RDAudioStore *conv=new RDAudioStore(rda->station(),rda->config(),this);
if((conv_err=conv->runStore(rda->user()->name(),rda->user()->password()))==
RDAudioStore::ErrorOk) {
uint64_t free_min=GetMinutes(conv->freeBytes());
uint64_t total_min=GetMinutes(conv->totalBytes());
disk_bar->setMaximum(total_min);
disk_bar->setValue(free_min);
disk_space_label->setText(QString().sprintf("%luh %02lum",free_min/60,
free_min-60*(free_min/60)));
disk_label->setEnabled(true);
disk_bar->setEnabled(true);
disk_space_label->setEnabled(true);
}
delete conv;
disk_timer->stop();
disk_timer->start(DISK_GAUGE_UPDATE_INTERVAL,true);
}
void DiskGauge::resizeEvent(QResizeEvent *e)
{
QFontMetrics *fm=new QFontMetrics(disk_label->font());
disk_label->setGeometry(0,0,fm->width(disk_label->text()),size().height()/2);
disk_bar->setGeometry(fm->width(disk_label->text())+5,0,
size().width()-fm->width(disk_label->text())-10,size().height()/2);
disk_space_label->
setGeometry(0,size().height()/2,size().width(),size().height()/2);
delete fm;
}
unsigned DiskGauge::GetMinutes(uint64_t bytes)
{
unsigned ret=0;
switch(rda->libraryConf()->defaultFormat()) {
case 1: // MPEG Layer 2
ret=bytes*2/(rda->libraryConf()->defaultChannels()*
rda->libraryConf()->defaultBitrate()*15);
break;
default: // PCM16
ret=bytes/(rda->libraryConf()->defaultChannels()*2*rda->system()->sampleRate()*60);
break;
}
return ret;
}