Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 130 insertions, 0 deletions

diff --git a/kicker/extensions/kasbar/kasloaditem.cpp b/kicker/extensions/kasbar/kasloaditem.cpp
new file mode 100644
index 000000000..b0f9c23e3
--- /dev/null
+++ b/kicker/extensions/kasbar/kasloaditem.cpp
@@ -0,0 +1,130 @@
+#include <math.h>
+#include <stdlib.h>
+
+#include <config.h>
+#ifdef HAVE_SYS_LOADAVG_H
+#include <sys/loadavg.h> // e.g. Solaris
+#endif
+
+#include <qpainter.h>
+#include <qbitmap.h>
+#include <qdatetime.h>
+#include <qdrawutil.h>
+#include <qtimer.h>
+
+#include <kdebug.h>
+#include <kglobal.h>
+#include <kwin.h>
+#include <kiconloader.h>
+#include <kpixmap.h>
+#include <kpixmapeffect.h>
+#include <klocale.h>
+#include <kstandarddirs.h>
+#include <kpopupmenu.h>
+
+#include <taskmanager.h>
+
+#include "kaspopup.h"
+#include "kastasker.h"
+
+#include "kasloaditem.h"
+#include "kasloaditem.moc"
+
+KasLoadItem::KasLoadItem( KasBar *parent )
+    : KasItem( parent )
+{
+    QTimer *t = new QTimer( this );
+    connect( t, SIGNAL( timeout() ), SLOT( updateDisplay() ) );
+    t->start( 1000 );
+    updateDisplay();
+
+    connect( this, SIGNAL(rightButtonClicked(QMouseEvent *)), SLOT(showMenuAt(QMouseEvent *) ) );
+}
+
+KasLoadItem::~KasLoadItem()
+{
+}
+
+void KasLoadItem::updateDisplay()
+{
+  double load[3];
+  
+  int ret = getloadavg( load, 3 );
+  if ( ret == -1 )
+    return;
+
+  valuesOne.append( load[0] );
+  valuesFive.append( load[1] );
+  valuesFifteen.append( load[2] );
+
+  if ( valuesOne.count() > 2/*(extent()-2)*/ ) {
+    valuesOne.pop_front();
+    valuesFive.pop_front();
+    valuesFifteen.pop_front();
+  }
+
+  setText( QString("%1").arg( valuesOne.last(), 3, 'f', 2 ) );
+}
+
+void KasLoadItem::paint( QPainter *p )
+{
+    double val = valuesOne.last();
+    double maxValue = 1.0;
+    double scaleVal = QMAX( val, valuesFive.last() );
+
+    if ( scaleVal >= maxValue )
+	maxValue = 2.0;
+    if ( scaleVal >= maxValue )
+	maxValue = 5.0;
+    if ( scaleVal >= maxValue )
+	maxValue = 10.0;
+    if ( scaleVal >= maxValue )
+	maxValue = 20.0;
+    if ( scaleVal >= maxValue )
+	maxValue = 50.0;
+    if ( scaleVal >= maxValue )
+	maxValue = 100.0;
+
+    double dh = extent()-16;
+    dh = dh / maxValue;
+
+    int h = (int) floor( dh * val );
+    int w = extent()-4;
+    h = (h > 0) ? h : 1;
+    w = (w > 0) ? w : 1;
+
+    KasItem::paint( p );
+
+    QColor light = kasbar()->colorGroup().highlight();
+    QColor dark = light.dark();
+
+    KPixmap pix;
+    pix.resize( w, h );
+    KPixmapEffect::gradient( pix, light, dark, KPixmapEffect::DiagonalGradient );
+    p->drawPixmap( 2, extent()-2-h, pix );
+
+    p->setPen( kasbar()->colorGroup().mid() );
+    for ( double pos = 0.2 ; pos < 1.0 ; pos += 0.2 ) {
+	int ypos = (int) floor((extent()-2) - (dh*maxValue*pos));
+	p->drawLine( 2, ypos, extent()-3, ypos );
+    }
+}
+
+void KasLoadItem::showMenuAt( QMouseEvent *ev )
+{
+    hidePopup();
+    showMenuAt( ev->globalPos() );
+}
+
+void KasLoadItem::showMenuAt( QPoint p )
+{
+    mouseLeave();
+    kasbar()->updateMouseOver();
+
+    KasTasker *bar = dynamic_cast<KasTasker *> (KasItem::kasbar());
+    if ( !bar )
+	return;
+
+    KPopupMenu *menu = bar->contextMenu();
+    menu->exec( p );
+}