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tdeartwork/kscreensaver/kpartsaver/kpartsaver.cpp

388 lines
9.9 KiB

/*
* Copyright (C) 2001 Stefan Schimanski <1Stein@gmx.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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 <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <time.h>
#include <tqwidget.h>
#include <tqdialog.h>
#include <tqtimer.h>
#include <tqstring.h>
#include <tqvaluelist.h>
#include <tqpushbutton.h>
#include <tqradiobutton.h>
#include <tqspinbox.h>
#include <tqcheckbox.h>
#include <tqlabel.h>
#include <klocale.h>
#include <kapplication.h>
#include <kdebug.h>
#include <klibloader.h>
#include <kconfig.h>
#include <kfiledialog.h>
#include <kurl.h>
#include <kparts/part.h>
#include <ktrader.h>
#include <kio/jobclasses.h>
#include <kio/job.h>
#include <kmimetype.h>
#include <kscreensaver.h>
#include "configwidget.h"
#include "kpartsaver.h"
#include <kiconloader.h>
TQPtrList<KPartSaver> g_savers;
bool g_inited = false;
extern "C"
{
KDE_EXPORT const char *kss_applicationName = "kpartsaver";
KDE_EXPORT const char *kss_description = I18N_NOOP( "KPart Screen Saver" );
KDE_EXPORT const char *kss_version = "1.0";
KDE_EXPORT KScreenSaver *kss_create( WId d )
{
KGlobal::locale()->insertCatalogue("kpartsaver");
return new KPartSaver( d );
}
KDE_EXPORT TQDialog *kss_setup()
{
kdDebug() << "kss_setup" << endl;
KGlobal::locale()->insertCatalogue("kpartsaver");
return new SaverConfig;
}
}
void exitHandler( int )
{
kdDebug() << "exitHandler" << endl;
g_savers.clear();
KLibLoader::self()->cleanUp();
exit(0);
}
KPartSaver::KPartSaver( WId id )
: KScreenSaver( id ), m_timer(), m_part(0), m_current(-1), m_back(0)
{
// install signal handlers to make sure that nspluginviewer is shutdown correctly
// move this into the nspluginviewer kpart code
if( !g_inited ) {
g_inited = true;
g_savers.setAutoDelete( true );
srand( time(0) );
// install signal handler
signal( SIGINT, exitHandler ); // Ctrl-C will cause a clean exit...
signal( SIGTERM, exitHandler ); // "kill"...
signal( SIGHUP, exitHandler ); // "kill -HUP" (hangup)...
signal( SIGKILL, exitHandler ); // "kill -KILL"
//atexit( ( void (*)(void) ) exitHandler );
}
g_savers.append( this );
closeURL();
// load config
KConfig *cfg = kapp->config();
cfg->setGroup( "Misc" );
m_single = cfg->readBoolEntry( "Single", true );
m_delay = cfg->readNumEntry( "Delay", 60 );
m_random = cfg->readBoolEntry( "Random", false );
m_files = cfg->readListEntry( "Files" );
if( m_files.count()==0 ) {
// create background widget
m_back = new TQLabel( i18n("The screen saver is not configured yet."), this );
m_back->setAlignment( AlignCenter );
embed( m_back );
m_back->show();
} else {
// queue files
for( unsigned int n=0; n<m_files.count(); n++ )
queue( KURL::fromPathOrURL( m_files[n] ) );
// play files
if( m_single )
next( m_random );
else {
next( m_random );
m_timer = new TQTimer( this );
m_timer->start( m_delay*1000, true );
connect( m_timer, TQT_SIGNAL(timeout()), TQT_SLOT(timeout()) );
}
}
}
KPartSaver::~KPartSaver()
{
g_savers.take( g_savers.findRef( this ));
closeURL();
}
void KPartSaver::closeURL()
{
if( m_part ) {
m_part->closeURL();
delete m_part;
m_part = 0;
}
}
bool KPartSaver::openURL( KURL url )
{
closeURL();
// find mime type
TQString mime = KMimeType::findByURL( url )->name();
// find fitting kparts
KTrader::OfferList offers;
offers = KTrader::self()->query( mime, "'KParts/ReadOnlyPart' in ServiceTypes" );
if( offers.count()==0 ) {
kdDebug() << "Can't find proper kpart for " << mime << endl;
return false;
}
// load kpart library
TQString lib = offers.first()->library();
KLibFactory *factory = KLibLoader::self()->factory( lib.latin1() );
if( !factory ) {
kdDebug() << "Library " << lib << " not found." << endl;
return false;
}
// create kpart
m_part = (KParts::ReadOnlyPart *)factory->create( TQT_TQOBJECT(this), "kpart", "KParts::ReadOnlyPart" );
if( !m_part ) {
kdDebug() << "Part for " << url.url() << " can't be constructed" << endl;
return false;
} else
embed( m_part->widget() );
// show kpart
delete m_back;
m_back = 0;
show();
m_part->widget()->show();
// load url
if( !m_part->openURL( url ) ) {
kdDebug() << "Can't load " << url.url() << endl;
closeURL();
return false;
}
return true;
}
void KPartSaver::queue( KURL url )
{
Medium medium;
medium.url = url;
medium.failed = false;
m_media.append( medium );
}
void KPartSaver::timeout()
{
next( m_random );
m_timer->start( m_delay*1000, true );
}
void KPartSaver::next( bool random )
{
// try to find working media
while( m_media.count()>0 ) {
if( random )
m_current = rand() % m_media.count();
else
m_current++;
if( m_current>=(int)m_media.count() )
m_current = 0;
kdDebug() << "Trying medium " << m_media[m_current].url.url() << endl;
// either start immediately or start mimejob first
if( !openURL( m_media[m_current].url ) ) {
m_media.remove( m_media.at(m_current) );
m_current--;
} else
return;
}
// create background widget
m_back = new TQLabel( i18n("All of your files are unsupported"), this );
m_back->setAlignment( AlignCenter );
embed( m_back );
m_back->show();
// nothing found, set to invalid
m_current = -1;
}
/*******************************************************************************/
SaverConfig::SaverConfig( TQWidget* parent, const char* name )
: ConfigWidget( parent, name, true )
{
connect( m_ok, TQT_SIGNAL(clicked()), TQT_SLOT(apply()) );
connect( m_ok, TQT_SIGNAL(clicked()), TQT_SLOT(accept()) );
connect( m_cancel, TQT_SIGNAL(clicked()), TQT_SLOT(reject()) );
connect( m_multiple, TQT_SIGNAL(toggled(bool)), m_delayLabel, TQT_SLOT(setEnabled(bool)) );
connect( m_multiple, TQT_SIGNAL(toggled(bool)), m_delay, TQT_SLOT(setEnabled(bool)) );
connect( m_multiple, TQT_SIGNAL(toggled(bool)), m_secondsLabel, TQT_SLOT(setEnabled(bool)) );
connect( m_multiple, TQT_SIGNAL(toggled(bool)), m_random, TQT_SLOT(setEnabled(bool)) );
connect( m_files, TQT_SIGNAL(selectionChanged()), TQT_SLOT(select()) );
connect( m_add, TQT_SIGNAL(clicked()), TQT_SLOT(add()) );
connect( m_remove, TQT_SIGNAL(clicked()), TQT_SLOT(remove()) );
connect( m_up, TQT_SIGNAL(clicked()), TQT_SLOT(up()) );
connect( m_down, TQT_SIGNAL(clicked()), TQT_SLOT(down()) );
m_up->setIconSet( SmallIconSet("up") );
m_down->setIconSet( SmallIconSet("down") );
// load config
KConfig *cfg = kapp->config();
cfg->setGroup( "Misc" );
bool single = cfg->readBoolEntry( "Single", true );
m_single->setChecked( single );
m_multiple->setChecked( !single );
m_delay->setMinValue( 1 );
m_delay->setMaxValue( 10000 );
m_delay->setValue( cfg->readNumEntry( "Delay", 60 ) );
m_random->setChecked( cfg->readBoolEntry( "Random", false ) );
m_files->insertStringList( cfg->readListEntry( "Files" ) );
// update buttons
select();
}
SaverConfig::~SaverConfig()
{
}
void SaverConfig::apply()
{
kdDebug() << "apply" << endl;
KConfig *cfg = kapp->config();
cfg->setGroup( "Misc" );
cfg->writeEntry( "Single", m_single->isChecked() );
cfg->writeEntry( "Delay", m_delay->value() );
cfg->writeEntry( "Random", m_random->isChecked() );
int num = m_files->count();
TQStringList files;
for( int n=0; n<num; n++ )
files << m_files->text(n);
cfg->writeEntry( "Files", files );
cfg->sync();
}
void SaverConfig::add()
{
KURL::List files = KFileDialog::getOpenURLs( TQString(), TQString(),
this, i18n("Select Media Files") );
for( unsigned int n=0; n<files.count(); n++ )
m_files->insertItem( files[n].prettyURL(), -1 );
}
void SaverConfig::remove()
{
int current = m_files->currentItem();
if( current!=-1 )
m_files->removeItem( current );
}
void SaverConfig::select()
{
bool enabled = m_files->currentItem()!=-1;
m_remove->setEnabled( enabled );
m_up->setEnabled( enabled && m_files->currentItem()!=0 );
m_down->setEnabled( enabled && m_files->currentItem()!=(int)m_files->count()-1 );
}
void SaverConfig::up()
{
int current = m_files->currentItem();
if ( current>0 ) {
TQString txt = m_files->currentText();
m_files->removeItem( current );
m_files->insertItem( txt, current-1 );
m_files->setCurrentItem( current-1 );
}
}
void SaverConfig::down()
{
int current = m_files->currentItem();
if ( current!=-1 && current<(int)m_files->count()-1 ) {
TQString txt = m_files->currentText();
m_files->removeItem( current );
m_files->insertItem( txt, current+1 );
m_files->setCurrentItem( current+1 );
}
}
#include "kpartsaver.moc"