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tdeaddons/kicker-applets/ktimemon/timemon.cpp

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/**********************************************************************/
/* TimeMon (c) 1994 Helmut Maierhofer */
/* KDE-ified M. Maierhofer 1998 */
/* maintained by Dirk A. Mueller <mueller@kde.org> */
/**********************************************************************/
/*
* timemon.h
*
* Definitions for the timemon widget.
*/
#include <config.h>
#include <tqpainter.h>
#include <tqtimer.h>
#include <tqtooltip.h>
#include <tdeconfig.h>
#include <tdeglobal.h>
#include <tdelocale.h>
#include <khelpmenu.h>
#include <tdepopupmenu.h>
#include <kprocess.h>
#include <tdemessagebox.h>
#include <kdebug.h>
#include "timemon.h"
#include "confdlg.h"
#include "sample.h"
#include "timemon.moc"
#include <stdio.h>
extern "C"
{
TDE_EXPORT KPanelApplet* init(TQWidget *parent, const TQString& configFile)
{
TDEGlobal::locale()->insertCatalogue("ktimemon");
KTimeMon *mon = new KTimeMon(configFile, KPanelApplet::Normal,
KPanelApplet::Preferences, parent, "ktimemon");
return mon;
}
}
// Update colour settings with the new ones from the config dialog.
void KTimeMon::updateConfig(KConfDialog *d)
{
kernelColour = d->getKernelColour();
userColour = d->getUserColour();
iowaitColour = d->getIOWaitColour();
niceColour = d->getNiceColour();
cachedColour = d->getCachedColour();
usedColour = d->getUsedColour();
buffersColour = d->getBuffersColour();
mkernelColour = d->getMKernelColour();
swapColour = d->getSwapColour();
bgColour = d->getBgColour();
}
// -----------------------------------------------------------------------------
// some KPanelApplet API functions
int KTimeMon::widthForHeight(int height) const
{
int s = (int) (vertical ? 2/3.*height : height);
return s>=18? s : 18;
}
int KTimeMon::heightForWidth(int width) const
{
int s = (int) (vertical ? width : 2/3.*width);
return s>=18? s : 18;
}
void KTimeMon::preferences()
{
configure();
}
// -----------------------------------------------------------------------------
// Repaint the object; get the current sample and paint the bar graphs
// correspondingly. Use a pixmap to minimise flicker.
void KTimeMon::paintEvent(TQPaintEvent *)
{
int w, h, x, y, b, r;
w = vertical ? width() : height();
h = vertical ? height() : width();
r = w; // remaining height
x = 0;
KSample::Sample s;
if (sample != 0)
s = sample->getSample(h);
else
s.fill(h);
TQPixmap pixmap(width(), height());
pixmap.fill(this, 0, 0);
TQPainter painter(&pixmap);
b = r / 3; // bar width
r -= b;
if (bgColour != colorGroup().background())
{
paintRect(x, 0, b, h, bgColour, &painter);
}
y = h - s.kernel; paintRect(x, y, b, s.kernel, kernelColour, &painter);
y -= s.iowait; paintRect(x, y, b, s.iowait, iowaitColour, &painter);
y -= s.user; paintRect(x, y, b, s.user, userColour, &painter);
y -= s.nice; paintRect(x, y, b, s.nice, niceColour, &painter);
x += b;
b = r / 2;
r -= b;
if (bgColour != colorGroup().background())
{
paintRect(x, 0, b, h, bgColour, &painter);
}
y = h - s.mkernel; paintRect(x, y, b, s.mkernel, mkernelColour, &painter);
y -= s.used; paintRect(x, y, b, s.used, usedColour, &painter);
y -= s.buffers; paintRect(x, y, b, s.buffers, buffersColour, &painter);
y -= s.cached; paintRect(x, y, b, s.cached, cachedColour, &painter);
x += b;
b = r;
if (bgColour != colorGroup().background())
{
paintRect(x, 0, b, h, bgColour, &painter);
}
y = h - s.sused; paintRect(x, y, b, s.sused, swapColour, &painter);
painter.end();
bitBlt(this, 0, 0, &pixmap);
}
// -----------------------------------------------------------------------------
// Draw part of a bar, depending on the bar orientation.
void KTimeMon::paintRect(int x, int y, int w, int h, TQColor c, TQPainter *p)
{
if (vertical)
p->fillRect(x, y, w, h, c);
else
p->fillRect(width() - y - h, x, h, w, c);
}
// Show a tool-tip with some status information.
void KTimeMon::maybeTip(const TQPoint& p)
{
if (sample == 0) return; // no associated sample...
if(!rect().contains(p)) return;
KSample::Sample s = sample->getSample(100); // scale to 100(%)
int idle = 100 - s.kernel - s.user - s.nice;
if ( idle < 0 )
idle = 0;
TQString str = i18n("cpu: %1% idle\nmem: %2 MB %3% free\nswap: %4 MB %5% free")
.arg(idle)
.arg(TDEGlobal::locale()->formatNumber(s.used/100.*s.mtotal, 0))
.arg(100-s.used)
.arg(TDEGlobal::locale()->formatNumber(s.stotal, 0))
.arg(100-s.sused);
tip(rect(), str);
}
// -- KTimeMon definition ------------------------------------------------
// Initialise the member variables, read the configuration data base,
// set up the widget, and start the timer.
KTimeMon::KTimeMon(const TQString& configFile, Type type, int actions,
TQWidget *parent, const char *name)
: KPanelApplet(configFile, type, actions, parent, name, WRepaintNoErase), TQToolTip(this),
configDialog(0), bgProcess(0),
kernelColour("red1"), userColour("blue"),
niceColour("yellow"), iowaitColour("darkgreen"),
usedColour("blue1"), buffersColour("yellow"),
cachedColour("darkgreen"), mkernelColour("red1"),
swapColour("cyan3"), bgColour(colorGroup().background())
{
mouseAction[0] = NOTHING;
mouseAction[1] = NOTHING;
mouseAction[2] = MENU;
TDEConfig* conf = config();
conf->setGroup("Parameters");
interval = conf->readUnsignedNumEntry("Interval", 500);
autoScale = conf->readBoolEntry("AutoScale", true);
pageScale = conf->readUnsignedNumEntry("PageScale", 10);
swapScale = conf->readUnsignedNumEntry("SwapScale", 5);
ctxScale = conf->readUnsignedNumEntry("ContextScale", 300);
for (int i = 0; i < MAX_MOUSE_ACTIONS; i++) {
TQString n;
n.setNum(i);
mouseAction[i] = (MouseAction)
conf->readUnsignedNumEntry(TQString("MouseAction")+n, mouseAction[i]);
mouseActionCommand[i] = conf->readPathEntry(TQString("MouseActionCommand")+n);
}
conf->setGroup("Interface");
kernelColour = conf->readColorEntry("KernelColour", &kernelColour);
userColour = conf->readColorEntry("UserColour", &userColour);
niceColour = conf->readColorEntry("NiceColour", &niceColour);
iowaitColour = conf->readColorEntry("IOWaitColour", &iowaitColour);
cachedColour = conf->readColorEntry("CachedColour", &cachedColour);
usedColour = conf->readColorEntry("UsedColour", &usedColour);
buffersColour = conf->readColorEntry("BuffersColour", &buffersColour);
swapColour = conf->readColorEntry("SwapColour", &swapColour);
mkernelColour = conf->readColorEntry("MKernelColour", &mkernelColour);
bgColour = conf->readColorEntry("BgColour", &bgColour);
vertical = conf->readBoolEntry("Vertical", true);
timer = new TQTimer(this);
connect(timer, TQ_SIGNAL(timeout()), this, TQ_SLOT(timeout()));
timer->start(interval);
sample = new KSample(this, autoScale, pageScale, swapScale, ctxScale);
TQString aboutmsg = i18n("KTimeMon for TDE\n"
"Maintained by Dirk A. Mueller <dmuell@gmx.net>\n"
"Written by M. Maierhofer (m.maierhofer@tees.ac.uk)\n"
"Based on timemon by H. Maierhofer");
hmenu = new KHelpMenu(this, aboutmsg);
menu = new TDEPopupMenu(this);
menu->insertTitle( SmallIcon( "ktimemon" ), i18n( "System Monitor" ) ) ;
menu->insertItem(i18n("Horizontal Bars"), 4);
menu->insertItem(SmallIcon( "configure" ), i18n( "Preferences..." ), 2);
menu->insertSeparator();
menu->insertItem(SmallIcon( "help" ), i18n("Help"), hmenu->menu(), 1);
menu->connectItem(2, this, TQ_SLOT(configure()));
menu->connectItem(4, this, TQ_SLOT(orientation()));
menu->setCheckable(true);
vertical = !vertical; // and similar for orientation
orientation();
}
// -----------------------------------------------------------------------------
// delete the member variables
KTimeMon::~KTimeMon()
{
delete sample;
delete bgProcess;
TDEGlobal::locale()->removeCatalogue("ktimemon");
}
// Apply the settings from the configuration dialog and save them.
void KTimeMon::apply()
{
stop();
interval = configDialog->getInterval();
cont();
updateConfig(configDialog);
sample->setScaling(configDialog->getAutoScale(),
configDialog->getPageScale(),
configDialog->getSwapScale(),
configDialog->getCtxScale());
for (int i = 0; i < MAX_MOUSE_ACTIONS; i++) {
mouseAction[i] = (MouseAction) configDialog->getMouseAction(i);
mouseActionCommand[i] = configDialog->getMouseActionCommand(i);
}
update();
writeConfiguration();
}
void KTimeMon::stop()
{
timer->stop();
}
void KTimeMon::cont()
{
timer->start(interval);
}
// Dump the current configuration entries to the data base.
void KTimeMon::writeConfiguration()
{
TDEConfig* conf = config();
conf->setGroup("Interface");
conf->writeEntry("KernelColour", kernelColour);
conf->writeEntry("UserColour", userColour);
conf->writeEntry("NiceColour", niceColour);
conf->writeEntry("IOWaitColour", iowaitColour);
conf->writeEntry("CachedColour", cachedColour);
conf->writeEntry("UsedColour", usedColour);
conf->writeEntry("BuffersColour", buffersColour);
conf->writeEntry("MKernelColour", mkernelColour);
conf->writeEntry("SwapColour", swapColour);
conf->writeEntry("BgColour", bgColour);
conf->writeEntry("Mode", true);
conf->writeEntry("Vertical", vertical);
conf->setGroup("Parameters");
conf->writeEntry("Interval", interval);
conf->writeEntry("AutoScale", autoScale);
conf->writeEntry("PageScale", pageScale);
conf->writeEntry("SwapScale", swapScale);
conf->writeEntry("ContextScale", ctxScale);
conf->writeEntry("WidgetSize", size());
for (int i = 0; i < MAX_MOUSE_ACTIONS; i++) {
TQString n;
n.setNum(i);
conf->writeEntry(TQString("MouseAction")+n, (unsigned)mouseAction[i]);
conf->writePathEntry(TQString("MouseActionCommand")+n, mouseActionCommand[i]);
}
conf->sync();
}
// Make the KSample object update its internal sample and repaint the
// object.
void KTimeMon::timeout()
{
sample->updateSample();
update();
}
// This is called when the session management strikes, and also when the
// main program exits with a code of 0 (i.e. there was no error).
void KTimeMon::save()
{
writeConfiguration();
}
// -----------------------------------------------------------------------------
// Update the configuration dialog with the current values and show it.
void KTimeMon::configure()
{
if (configDialog == 0) configDialog = new KConfDialog(this);
configDialog->update();
configDialog->show();
}
// -----------------------------------------------------------------------------
// Change the orientation of the status bars
void KTimeMon::orientation()
{
vertical = !vertical;
TDEConfig* conf = config();
conf->setGroup("Interface");
conf->writeEntry("Vertical", vertical);
menu->setItemChecked(4, !vertical);
update();
emit updateLayout();
}
// Pop up the menu when the appropriate button has been pressed.
void KTimeMon::mousePressEvent(TQMouseEvent *event)
{
if (event == 0) return;
int index = -1;
if (event->button() == TQt::LeftButton) index = 0;
else if (event->button() == TQt::MidButton) index = 1;
else if (event->button() == TQt::RightButton) index = 2;
if (index == -1) return;
switch (mouseAction[index]) {
case NOTHING:
break;
case SWITCH:
break;
case MENU:
menu->popup(mapToGlobal(event->pos()));
break;
case COMMAND:
runCommand(index);
break;
}
}
// Start the given command
void KTimeMon::runCommand(int index)
{
// just in case it still hangs around
delete bgProcess;
bgProcess = new KShellProcess;
*bgProcess << mouseActionCommand[index];
connect(bgProcess, TQ_SIGNAL(receivedStderr(TDEProcess *, char *, int)),
this, TQ_SLOT(commandStderr(TDEProcess *, char *, int)));
bgProcess->start(TDEProcess::DontCare, TDEProcess::Stderr);
}
// -----------------------------------------------------------------------------
// Check if there is any diagnostic output (command not found or such)
void KTimeMon::commandStderr(TDEProcess * /*proc*/, char *buffer, int /*length*/)
{
TQString msgbuf;
msgbuf = i18n("Got diagnostic output from child command:\n\n");
msgbuf += TQString::fromLocal8Bit(buffer);
KMessageBox::information(this, msgbuf);
}
// -----------------------------------------------------------------------------