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tdebase/ksysguard/gui/SensorDisplayLib/SensorDisplay.cpp

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/*
KSysGuard, the KDE System Guard
Copyright (c) 1999 - 2002 Chris Schlaeger <cs@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of version 2 of the GNU General Public
License 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
KSysGuard is currently maintained by Chris Schlaeger <cs@kde.org>.
Please do not commit any changes without consulting me first. Thanks!
*/
#include <tqcheckbox.h>
#include <tqdom.h>
#include <tqpopupmenu.h>
#include <tqspinbox.h>
#include <tqwhatsthis.h>
#include <tqbitmap.h>
#include <tdeapplication.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <tdelocale.h>
#include <tdemessagebox.h>
#include <krun.h>
#include <kservice.h>
#include "SensorManager.h"
#include "TimerSettings.h"
#include "SensorDisplay.h"
using namespace KSGRD;
SensorDisplay::SensorDisplay( TQWidget *parent, const char *name,
const TQString &title, bool nf, bool isApplet)
: TQWidget( parent, name )
{
mIsApplet = isApplet;
mSensors.setAutoDelete( true );
// default interval is 2 seconds.
mUpdateInterval = 2;
mUseGlobalUpdateInterval = true;
mModified = false;
mShowUnit = false;
mTimerId = NONE;
mFrame = 0;
mErrorIndicator = 0;
mPlotterWdg = 0;
setTimerOn( true );
TQWhatsThis::add( this, "dummy" );
if(!nf) {
mFrame = new TQGroupBox( 2, Qt::Vertical, "", this, "displayFrame");
mFrame->setFlat(true);
mFrame->setAlignment(Qt::AlignHCenter);
mFrame->setInsideMargin(2);
setTitle( title );
/* All RMB clicks to the box frame will be handled by
* SensorDisplay::eventFilter. */
mFrame->installEventFilter( this );
}
setMinimumSize( 16, 16 );
setModified( false );
setSensorOk( false );
/* Let's call updateWhatsThis() in case the derived class does not do
* this. */
updateWhatsThis();
}
SensorDisplay::~SensorDisplay()
{
if ( SensorMgr != 0 )
SensorMgr->disconnectClient( this );
killTimer( mTimerId );
}
void SensorDisplay::registerSensor( SensorProperties *sp )
{
/* Make sure that we have a connection established to the specified
* host. When a work sheet has been saved while it had dangling
* sensors, the connect info is not saved in the work sheet. In such
* a case the user can re-enter the connect information and the
* connection will be established. */
if ( !SensorMgr->engageHost( sp->hostName() ) ) {
TQString msg = i18n( "It is impossible to connect to \'%1\'." ).arg( sp->hostName() );
KMessageBox::error( this, msg );
}
mSensors.append( sp );
}
void SensorDisplay::unregisterSensor( uint pos )
{
mSensors.remove( pos );
}
void SensorDisplay::configureUpdateInterval()
{
TimerSettings dlg( this );
dlg.setUseGlobalUpdate( mUseGlobalUpdateInterval );
dlg.setInterval( mUpdateInterval );
if ( dlg.exec() ) {
if ( dlg.useGlobalUpdate() ) {
mUseGlobalUpdateInterval = true;
SensorBoard* sb = dynamic_cast<SensorBoard*>( parentWidget() );
if ( !sb ) {
kdDebug(1215) << "dynamic cast lacks" << endl;
setUpdateInterval( 2 );
} else {
setUpdateInterval( sb->updateInterval() );
}
} else {
mUseGlobalUpdateInterval = false;
setUpdateInterval( dlg.interval() );
}
setModified( true );
}
}
void SensorDisplay::timerEvent( TQTimerEvent* )
{
int i = 0;
for ( SensorProperties *s = mSensors.first(); s; s = mSensors.next(), ++i )
sendRequest( s->hostName(), s->name(), i );
}
void SensorDisplay::resizeEvent( TQResizeEvent* )
{
if(mFrame)
mFrame->setGeometry( rect() );
}
bool SensorDisplay::eventFilter( TQObject *object, TQEvent *event )
{
if ( event->type() == TQEvent::MouseButtonPress &&
( (TQMouseEvent*)event)->button() == Qt::RightButton ) {
TQPopupMenu pm;
if ( mIsApplet ) {
pm.insertItem( i18n( "Launch &System Guard"), 1 );
pm.insertSeparator();
}
if ( hasSettingsDialog() )
pm.insertItem( i18n( "&Properties" ), 2 );
pm.insertItem( i18n( "&Remove Display" ), 3 );
pm.insertSeparator();
pm.insertItem( i18n( "&Setup Update Interval..." ), 4 );
if ( !timerOn() )
pm.insertItem( i18n( "&Continue Update" ), 5 );
else
pm.insertItem( i18n( "P&ause Update" ), 6 );
switch ( pm.exec( TQCursor::pos() ) ) {
case 1:
KRun::run(*KService::serviceByDesktopName("ksysguard"), KURL::List());
break;
case 2:
configureSettings();
break;
case 3: {
TQCustomEvent *e = new TQCustomEvent( TQEvent::User );
e->setData( this );
kapp->postEvent( parent(), e );
}
break;
case 4:
configureUpdateInterval();
break;
case 5:
setTimerOn( true );
setModified( true );
break;
case 6:
setTimerOn( false );
setModified( true );
break;
}
return true;
} else if ( event->type() == TQEvent::MouseButtonRelease &&
( ( TQMouseEvent*)event)->button() == Qt::LeftButton ) {
setFocus();
}
return TQWidget::eventFilter( object, event );
}
void SensorDisplay::sendRequest( const TQString &hostName,
const TQString &command, int id )
{
if ( !SensorMgr->sendRequest( hostName, command, (SensorClient*)this, id ) )
sensorError( id, true );
}
void SensorDisplay::sensorError( int sensorId, bool err )
{
if ( sensorId >= (int)mSensors.count() || sensorId < 0 )
return;
if ( err == mSensors.at( sensorId )->isOk() ) {
// this happens only when the sensorOk status needs to be changed.
mSensors.at( sensorId )->setIsOk( !err );
}
bool ok = true;
for ( uint i = 0; i < mSensors.count(); ++i )
if ( !mSensors.at( i )->isOk() ) {
ok = false;
break;
}
setSensorOk( ok );
}
void SensorDisplay::updateWhatsThis()
{
TQWhatsThis::add( this, i18n(
"<qt><p>This is a sensor display. To customize a sensor display click "
"and hold the right mouse button on either the frame or the "
"display box and select the <i>Properties</i> entry from the popup "
"menu. Select <i>Remove</i> to delete the display from the worksheet."
"</p>%1</qt>" ).arg( additionalWhatsThis() ) );
}
void SensorDisplay::hosts( TQStringList& list )
{
for ( SensorProperties *s = mSensors.first(); s; s = mSensors.next() )
if ( !list.contains( s->hostName() ) )
list.append( s->hostName() );
}
TQColor SensorDisplay::restoreColor( TQDomElement &element, const TQString &attr,
const TQColor& fallback )
{
bool ok;
uint c = element.attribute( attr ).toUInt( &ok );
if ( !ok )
return fallback;
else
return TQColor( (c >> 16) & 0xFF, (c >> 8) & 0xFF, c & 0xFF );
}
void SensorDisplay::saveColor( TQDomElement &element, const TQString &attr,
const TQColor &color )
{
int r, g, b;
color.rgb( &r, &g, &b );
element.setAttribute( attr, (r << 16) | (g << 8) | b );
}
bool SensorDisplay::addSensor( const TQString &hostName, const TQString &name,
const TQString &type, const TQString &description )
{
registerSensor( new SensorProperties( hostName, name, type, description ) );
return true;
}
bool SensorDisplay::removeSensor( uint pos )
{
unregisterSensor( pos );
return true;
}
void SensorDisplay::setUpdateInterval( uint interval )
{
bool timerActive = timerOn();
if ( timerActive )
setTimerOn( false );
mUpdateInterval = interval;
if ( timerActive )
setTimerOn( true );
}
bool SensorDisplay::hasSettingsDialog() const
{
return false;
}
void SensorDisplay::configureSettings()
{
}
void SensorDisplay::setUseGlobalUpdateInterval( bool value )
{
mUseGlobalUpdateInterval = value;
}
bool SensorDisplay::useGlobalUpdateInterval() const
{
return mUseGlobalUpdateInterval;
}
TQString SensorDisplay::additionalWhatsThis()
{
return TQString::null;
}
void SensorDisplay::sensorLost( int reqId )
{
sensorError( reqId, true );
}
bool SensorDisplay::restoreSettings( TQDomElement &element )
{
TQString str = element.attribute( "showUnit", "X" );
if(!str.isEmpty() && str != "X") {
mShowUnit = str.toInt();
}
str = element.attribute( "unit", TQString::null );
if(!str.isEmpty())
setUnit(str);
str = element.attribute( "title", TQString::null );
if(!str.isEmpty())
setTitle(str);
if ( element.attribute( "updateInterval" ) != TQString::null ) {
mUseGlobalUpdateInterval = false;
setUpdateInterval( element.attribute( "updateInterval", "2" ).toInt() );
} else {
mUseGlobalUpdateInterval = true;
SensorBoard* sb = dynamic_cast<SensorBoard*>( parentWidget() );
if ( !sb ) {
kdDebug(1215) << "dynamic cast lacks" << endl;
setUpdateInterval( 2 );
} else
setUpdateInterval( sb->updateInterval() );
}
if ( element.attribute( "pause", "0" ).toInt() == 0 )
setTimerOn( true );
else
setTimerOn( false );
return true;
}
bool SensorDisplay::saveSettings( TQDomDocument&, TQDomElement &element, bool )
{
element.setAttribute( "title", title() );
element.setAttribute( "unit", unit() );
element.setAttribute( "showUnit", mShowUnit );
if ( mUseGlobalUpdateInterval )
element.setAttribute( "globalUpdate", "1" );
else {
element.setAttribute( "globalUpdate", "0" );
element.setAttribute( "updateInterval", mUpdateInterval );
}
if ( !timerOn() )
element.setAttribute( "pause", 1 );
else
element.setAttribute( "pause", 0 );
return true;
}
void SensorDisplay::setTimerOn( bool on )
{
if ( on ) {
if ( mTimerId == NONE )
mTimerId = startTimer( mUpdateInterval * 1000 );
} else {
if ( mTimerId != NONE ) {
killTimer( mTimerId );
mTimerId = NONE;
}
}
}
bool SensorDisplay::timerOn() const
{
return ( mTimerId != NONE );
}
bool SensorDisplay::modified() const
{
return mModified;
}
TQPtrList<SensorProperties> &SensorDisplay::sensors()
{
return mSensors;
}
void SensorDisplay::rmbPressed()
{
emit showPopupMenu( this );
}
void SensorDisplay::applySettings()
{
}
void SensorDisplay::applyStyle()
{
}
void SensorDisplay::setModified( bool value )
{
if ( value != mModified ) {
mModified = value;
emit modified( mModified );
}
}
void SensorDisplay::setSensorOk( bool ok )
{
if ( ok ) {
delete mErrorIndicator;
mErrorIndicator = 0;
} else {
if ( mErrorIndicator )
return;
TQPixmap errorIcon = TDEGlobal::iconLoader()->loadIcon( "connect_creating", TDEIcon::Desktop,
TDEIcon::SizeSmall );
if ( !mPlotterWdg )
return;
mErrorIndicator = new TQWidget( mPlotterWdg );
mErrorIndicator->setErasePixmap( errorIcon );
mErrorIndicator->resize( errorIcon.size() );
if ( errorIcon.mask() )
mErrorIndicator->setMask( *errorIcon.mask() );
mErrorIndicator->move( 0, 0 );
mErrorIndicator->show();
}
}
void SensorDisplay::setTitle( const TQString &title )
{
mTitle = title;
if(!mFrame) {
return; //fixme. create a frame and move widget inside it.
}
/* Changing the frame title may increase the width of the frame and
* hence breaks the layout. To avoid this, we save the original size
* and restore it after we have set the frame title. */
TQSize s = mFrame->size();
if ( mShowUnit && !mUnit.isEmpty() )
mFrame->setTitle( mTitle + " [" + mUnit + "]" );
else
mFrame->setTitle( mTitle );
mFrame->setGeometry( 0, 0, s.width(), s.height() );
}
TQString SensorDisplay::title() const
{
return mTitle;
}
void SensorDisplay::setUnit( const TQString &unit )
{
mUnit = unit;
}
TQString SensorDisplay::unit() const
{
return mUnit;
}
void SensorDisplay::setShowUnit( bool value )
{
mShowUnit = value;
}
bool SensorDisplay::showUnit() const
{
return mShowUnit;
}
void SensorDisplay::setPlotterWidget( TQWidget *wdg )
{
mPlotterWdg = wdg;
}
TQWidget *SensorDisplay::frame()
{
return mFrame;
}
//void SensorDisplay::setNoFrame( bool /*value*/ )
//{
//FIXME - delete or create the frame as needed
//}
bool SensorDisplay::noFrame() const
{
return !mFrame;
}
void SensorDisplay::reorderSensors(const TQValueList<int> &orderOfSensors)
{
TQPtrList<SensorProperties> newSensors;
for ( uint i = 0; i < orderOfSensors.count(); ++i ) {
newSensors.append( mSensors.at(orderOfSensors[i] ));
}
mSensors.setAutoDelete( false );
mSensors = newSensors;
mSensors.setAutoDelete( true );
}
SensorProperties::SensorProperties()
{
}
SensorProperties::SensorProperties( const TQString &hostName, const TQString &name,
const TQString &type, const TQString &description )
: mHostName( hostName ), mName( name ), mType( type ), mDescription( description )
{
mOk = false;
}
SensorProperties::~SensorProperties()
{
}
void SensorProperties::setHostName( const TQString &hostName )
{
mHostName = hostName;
}
TQString SensorProperties::hostName() const
{
return mHostName;
}
void SensorProperties::setName( const TQString &name )
{
mName = name;
}
TQString SensorProperties::name() const
{
return mName;
}
void SensorProperties::setType( const TQString &type )
{
mType = type;
}
TQString SensorProperties::type() const
{
return mType;
}
void SensorProperties::setDescription( const TQString &description )
{
mDescription = description;
}
TQString SensorProperties::description() const
{
return mDescription;
}
void SensorProperties::setUnit( const TQString &unit )
{
mUnit = unit;
}
TQString SensorProperties::unit() const
{
return mUnit;
}
void SensorProperties::setIsOk( bool value )
{
mOk = value;
}
bool SensorProperties::isOk() const
{
return mOk;
}
#include "SensorDisplay.moc"