diff options
Diffstat (limited to 'ksysguard/gui/SensorDisplayLib/SensorDisplay.cc')
| -rw-r--r-- | ksysguard/gui/SensorDisplayLib/SensorDisplay.cc | 611 |
1 files changed, 611 insertions, 0 deletions
diff --git a/ksysguard/gui/SensorDisplayLib/SensorDisplay.cc b/ksysguard/gui/SensorDisplayLib/SensorDisplay.cc new file mode 100644 index 000000000..805c9a492 --- /dev/null +++ b/ksysguard/gui/SensorDisplayLib/SensorDisplay.cc @@ -0,0 +1,611 @@ +/* + 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 <qcheckbox.h> +#include <qdom.h> +#include <qpopupmenu.h> +#include <qspinbox.h> +#include <qwhatsthis.h> +#include <qbitmap.h> + +#include <kapplication.h> +#include <kdebug.h> +#include <kiconloader.h> +#include <klocale.h> +#include <kmessagebox.h> +#include <krun.h> +#include <kservice.h> + +#include "SensorManager.h" +#include "TimerSettings.h" + +#include "SensorDisplay.h" + +using namespace KSGRD; + +SensorDisplay::SensorDisplay( QWidget *parent, const char *name, + const QString &title, bool nf, bool isApplet) + : QWidget( 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 ); + QWhatsThis::add( this, "dummy" ); + + if(!nf) { + mFrame = new QGroupBox( 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() ) ) { + QString 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( QTimerEvent* ) +{ + int i = 0; + for ( SensorProperties *s = mSensors.first(); s; s = mSensors.next(), ++i ) + sendRequest( s->hostName(), s->name(), i ); +} + +void SensorDisplay::resizeEvent( QResizeEvent* ) +{ + if(mFrame) + mFrame->setGeometry( rect() ); +} + +bool SensorDisplay::eventFilter( QObject *object, QEvent *event ) +{ + if ( event->type() == QEvent::MouseButtonPress && + ( (QMouseEvent*)event)->button() == RightButton ) { + QPopupMenu 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( QCursor::pos() ) ) { + case 1: + KRun::run(*KService::serviceByDesktopName("ksysguard"), KURL::List()); + break; + case 2: + configureSettings(); + break; + case 3: { + QCustomEvent *e = new QCustomEvent( QEvent::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() == QEvent::MouseButtonRelease && + ( ( QMouseEvent*)event)->button() == LeftButton ) { + setFocus(); + } + + return QWidget::eventFilter( object, event ); +} + +void SensorDisplay::sendRequest( const QString &hostName, + const QString &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() +{ + QWhatsThis::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( QStringList& list ) +{ + for ( SensorProperties *s = mSensors.first(); s; s = mSensors.next() ) + if ( !list.contains( s->hostName() ) ) + list.append( s->hostName() ); +} + +QColor SensorDisplay::restoreColor( QDomElement &element, const QString &attr, + const QColor& fallback ) +{ + bool ok; + uint c = element.attribute( attr ).toUInt( &ok ); + if ( !ok ) + return fallback; + else + return QColor( (c >> 16) & 0xFF, (c >> 8) & 0xFF, c & 0xFF ); +} + +void SensorDisplay::saveColor( QDomElement &element, const QString &attr, + const QColor &color ) +{ + int r, g, b; + color.rgb( &r, &g, &b ); + element.setAttribute( attr, (r << 16) | (g << 8) | b ); +} + +bool SensorDisplay::addSensor( const QString &hostName, const QString &name, + const QString &type, const QString &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; +} + +QString SensorDisplay::additionalWhatsThis() +{ + return QString::null; +} + +void SensorDisplay::sensorLost( int reqId ) +{ + sensorError( reqId, true ); +} + +bool SensorDisplay::restoreSettings( QDomElement &element ) +{ + QString str = element.attribute( "showUnit", "X" ); + if(!str.isEmpty() && str != "X") { + mShowUnit = str.toInt(); + } + str = element.attribute( "unit", QString::null ); + if(!str.isEmpty()) + setUnit(str); + str = element.attribute( "title", QString::null ); + if(!str.isEmpty()) + setTitle(str); + + if ( element.attribute( "updateInterval" ) != QString::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( QDomDocument&, QDomElement &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; +} + +QPtrList<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; + + QPixmap errorIcon = KGlobal::iconLoader()->loadIcon( "connect_creating", KIcon::Desktop, + KIcon::SizeSmall ); + if ( !mPlotterWdg ) + return; + + mErrorIndicator = new QWidget( 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 QString &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. */ + QSize s = mFrame->size(); + + if ( mShowUnit && !mUnit.isEmpty() ) + mFrame->setTitle( mTitle + " [" + mUnit + "]" ); + else + mFrame->setTitle( mTitle ); + mFrame->setGeometry( 0, 0, s.width(), s.height() ); +} + +QString SensorDisplay::title() const +{ + return mTitle; +} + +void SensorDisplay::setUnit( const QString &unit ) +{ + mUnit = unit; +} + +QString SensorDisplay::unit() const +{ + return mUnit; +} + +void SensorDisplay::setShowUnit( bool value ) +{ + mShowUnit = value; +} + +bool SensorDisplay::showUnit() const +{ + return mShowUnit; +} + +void SensorDisplay::setPlotterWidget( QWidget *wdg ) +{ + mPlotterWdg = wdg; + +} + +QWidget *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 QValueList<int> &orderOfSensors) +{ + QPtrList<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 QString &hostName, const QString &name, + const QString &type, const QString &description ) + : mHostName( hostName ), mName( name ), mType( type ), mDescription( description ) +{ + mOk = false; +} + +SensorProperties::~SensorProperties() +{ +} + +void SensorProperties::setHostName( const QString &hostName ) +{ + mHostName = hostName; +} + +QString SensorProperties::hostName() const +{ + return mHostName; +} + +void SensorProperties::setName( const QString &name ) +{ + mName = name; +} + +QString SensorProperties::name() const +{ + return mName; +} + +void SensorProperties::setType( const QString &type ) +{ + mType = type; +} + +QString SensorProperties::type() const +{ + return mType; +} + +void SensorProperties::setDescription( const QString &description ) +{ + mDescription = description; +} + +QString SensorProperties::description() const +{ + return mDescription; +} + +void SensorProperties::setUnit( const QString &unit ) +{ + mUnit = unit; +} + +QString SensorProperties::unit() const +{ + return mUnit; +} + +void SensorProperties::setIsOk( bool value ) +{ + mOk = value; +} + +bool SensorProperties::isOk() const +{ + return mOk; +} + +#include "SensorDisplay.moc" |