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, 941 insertions, 0 deletions

diff --git a/ksysguard/gui/SensorDisplayLib/ProcessList.cc b/ksysguard/gui/SensorDisplayLib/ProcessList.cc
new file mode 100644
index 000000000..6d158c872
--- /dev/null
+++ b/ksysguard/gui/SensorDisplayLib/ProcessList.cc
@@ -0,0 +1,941 @@
+/*
+    KSysGuard, the KDE System Guard
+
+    Copyright (C) 1997 Bernd Johannes Wuebben
+                       <wuebben@math.cornell.edu>
+
+    Copyright (C) 1998 Nicolas Leclercq <nicknet@planete.net>
+
+    Copyright (c) 1999, 2000, 2001, 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 <assert.h>
+#include <config.h>
+#include <ctype.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <qbitmap.h>
+#include <qheader.h>
+#include <qimage.h>
+#include <qpopupmenu.h>
+
+#include <kdebug.h>
+#include <kglobal.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+
+#include "ProcessController.h"
+#include "ProcessList.h"
+#include "ReniceDlg.h"
+#include "SignalIDs.h"
+
+#define NONE -1
+#define INIT_PID 1
+
+//extern const char* intKey(const char* text);
+//extern const char* timeKey(const char* text);
+//extern const char* floatKey(const char* text);
+
+QDict<QString> ProcessList::aliases;
+
+int ProcessLVI::compare( QListViewItem *item, int col, bool ascending ) const
+{
+  int type = ((ProcessList*)listView())->columnType( col );
+
+  if ( type == ProcessList::Int ) {
+    int prev = (int)KGlobal::locale()->readNumber( key( col, ascending ) );
+    int next = (int)KGlobal::locale()->readNumber( item->key( col, ascending ) );
+    if ( prev < next )
+      return -1;
+    else if ( prev == next )
+      return 0;
+    else
+      return 1;
+  }
+
+  if ( type == ProcessList::Float ) {
+    double prev = KGlobal::locale()->readNumber( key( col, ascending ) );
+    double next = KGlobal::locale()->readNumber( item->key( col, ascending ) );
+    if ( prev < next )
+      return -1;
+    else
+      return 1;
+  }
+
+  if ( type == ProcessList::Time ) {
+    int hourPrev, hourNext, minutesPrev, minutesNext;
+    sscanf( key( col, ascending ).latin1(), "%d:%d", &hourPrev, &minutesPrev );
+    sscanf( item->key( col, ascending ).latin1(), "%d:%d", &hourNext, &minutesNext );
+    int prev = hourPrev * 60 + minutesPrev;
+    int next = hourNext * 60 + minutesNext;
+    if ( prev < next )
+      return -1;
+    else if ( prev == next )
+      return 0;
+    else
+      return 1;
+  }
+
+  return key( col, ascending ).localeAwareCompare( item->key( col, ascending ) );
+}
+
+ProcessList::ProcessList(QWidget *parent, const char* name)
+	: KListView(parent, name)
+{
+	iconCache.setAutoDelete(true);
+
+	columnDict.setAutoDelete(true);
+	columnDict.insert("running",
+					  new QString(i18n("process status", "running")));
+	columnDict.insert("sleeping",
+					  new QString(i18n("process status", "sleeping")));
+	columnDict.insert("disk sleep",
+					  new QString(i18n("process status", "disk sleep")));
+	columnDict.insert("zombie", new QString(i18n("process status", "zombie")));
+	columnDict.insert("stopped",
+					  new QString(i18n("process status", "stopped")));
+	columnDict.insert("paging", new QString(i18n("process status", "paging")));
+	columnDict.insert("idle", new QString(i18n("process status", "idle")));
+
+	if (aliases.isEmpty())
+	{
+#ifdef Q_OS_LINUX
+		aliases.insert("init", new QString("penguin"));
+#else
+		aliases.insert("init", new QString("system"));
+#endif
+		/* kernel stuff */
+		aliases.insert("bdflush", new QString("kernel"));
+		aliases.insert("dhcpcd", new QString("kernel"));
+		aliases.insert("kapm-idled", new QString("kernel"));
+		aliases.insert("keventd", new QString("kernel"));
+		aliases.insert("khubd", new QString("kernel"));
+		aliases.insert("klogd", new QString("kernel"));
+		aliases.insert("kreclaimd", new QString("kernel"));
+		aliases.insert("kreiserfsd", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU0", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU1", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU2", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU3", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU4", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU5", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU6", new QString("kernel"));
+		aliases.insert("ksoftirqd_CPU7", new QString("kernel"));
+		aliases.insert("kswapd", new QString("kernel"));
+		aliases.insert("kupdated", new QString("kernel"));
+		aliases.insert("mdrecoveryd", new QString("kernel"));
+		aliases.insert("scsi_eh_0", new QString("kernel"));
+		aliases.insert("scsi_eh_1", new QString("kernel"));
+		aliases.insert("scsi_eh_2", new QString("kernel"));
+		aliases.insert("scsi_eh_3", new QString("kernel"));
+		aliases.insert("scsi_eh_4", new QString("kernel"));
+		aliases.insert("scsi_eh_5", new QString("kernel"));
+		aliases.insert("scsi_eh_6", new QString("kernel"));
+		aliases.insert("scsi_eh_7", new QString("kernel"));
+		/* daemon and other service providers */
+		aliases.insert("artsd", new QString("daemon"));
+		aliases.insert("atd", new QString("daemon"));
+		aliases.insert("automount", new QString("daemon"));
+		aliases.insert("cardmgr", new QString("daemon"));
+		aliases.insert("cron", new QString("daemon"));
+		aliases.insert("cupsd", new QString("daemon"));
+		aliases.insert("in.identd", new QString("daemon"));
+		aliases.insert("lpd", new QString("daemon"));
+		aliases.insert("mingetty", new QString("daemon"));
+		aliases.insert("nscd", new QString("daemon"));
+		aliases.insert("portmap", new QString("daemon"));
+		aliases.insert("rpc.statd", new QString("daemon"));
+		aliases.insert("rpciod", new QString("daemon"));
+		aliases.insert("sendmail", new QString("daemon"));
+		aliases.insert("sshd", new QString("daemon"));
+		aliases.insert("syslogd", new QString("daemon"));
+		aliases.insert("usbmgr", new QString("daemon"));
+		aliases.insert("wwwoffled", new QString("daemon"));
+		aliases.insert("xntpd", new QString("daemon"));
+		aliases.insert("ypbind", new QString("daemon"));
+		/* kde applications */
+		aliases.insert("appletproxy", new QString("kdeapp"));
+		aliases.insert("dcopserver", new QString("kdeapp"));
+		aliases.insert("kcookiejar", new QString("kdeapp"));
+		aliases.insert("kde", new QString("kdeapp"));
+		aliases.insert("kded", new QString("kdeapp"));
+		aliases.insert("kdeinit", new QString("kdeapp"));
+		aliases.insert("kdesktop", new QString("kdeapp"));
+		aliases.insert("kdesud", new QString("kdeapp"));
+		aliases.insert("kdm", new QString("kdeapp"));
+		aliases.insert("khotkeys", new QString("kdeapp"));
+		aliases.insert("kio_file", new QString("kdeapp"));
+		aliases.insert("kio_uiserver", new QString("kdeapp"));
+		aliases.insert("klauncher", new QString("kdeapp"));
+		aliases.insert("ksmserver", new QString("kdeapp"));
+		aliases.insert("kwrapper", new QString("kdeapp"));
+		aliases.insert("kwrited", new QString("kdeapp"));
+		aliases.insert("kxmlrpcd", new QString("kdeapp"));
+		aliases.insert("startkde", new QString("kdeapp"));
+		/* other processes */
+		aliases.insert("bash", new QString("shell"));
+		aliases.insert("cat", new QString("tools"));
+		aliases.insert("egrep", new QString("tools"));
+		aliases.insert("emacs", new QString("wordprocessing"));
+		aliases.insert("fgrep", new QString("tools"));
+		aliases.insert("find", new QString("tools"));
+		aliases.insert("grep", new QString("tools"));
+		aliases.insert("ksh", new QString("shell"));
+		aliases.insert("screen", new QString("openterm"));
+		aliases.insert("sh", new QString("shell"));
+		aliases.insert("sort", new QString("tools"));
+		aliases.insert("ssh", new QString("shell"));
+		aliases.insert("su", new QString("tools"));
+		aliases.insert("tcsh", new QString("shell"));
+		aliases.insert("tee", new QString("tools"));
+		aliases.insert("vi", new QString("wordprocessing"));
+	}
+
+	/* The filter mode is controlled by a combo box of the parent. If
+	 * the mode is changed we get a signal. */
+	connect(parent, SIGNAL(setFilterMode(int)),
+			this, SLOT(setFilterMode(int)));
+
+	/* We need to catch this signal to show various popup menues. */
+	connect(this,
+			SIGNAL(rightButtonPressed(QListViewItem*, const QPoint&, int)),
+			this,
+			SLOT(handleRMBPressed(QListViewItem*, const QPoint&, int)));
+
+	/* Since Qt does not tell us the sorting details we have to do our
+	 * own bookkeping, so we can save and restore the sorting
+	 * settings. */
+	connect(header(), SIGNAL(clicked(int)), this, SLOT(sortingChanged(int)));
+
+	treeViewEnabled = false;
+	openAll = true;
+
+	filterMode = FILTER_ALL;
+
+	sortColumn = 1;
+	increasing = false;
+
+	// Elements in the process list may only live in this list.
+	pl.setAutoDelete(true);
+
+	setItemMargin(2);
+	setAllColumnsShowFocus(true);
+	setTreeStepSize(17);
+	setSorting(sortColumn, increasing);
+	setSelectionMode(QListView::Extended);
+
+	// Create popup menu for RMB clicks on table header
+	headerPM = new QPopupMenu();
+	headerPM->insertItem(i18n("Remove Column"), HEADER_REMOVE);
+	headerPM->insertItem(i18n("Add Column"), HEADER_ADD);
+	headerPM->insertItem(i18n("Help on Column"), HEADER_HELP);
+
+	connect(header(), SIGNAL(sizeChange(int, int, int)),
+			this, SLOT(sizeChanged(int, int, int)));
+	connect(header(), SIGNAL(indexChange(int, int, int)),
+			this, SLOT(indexChanged(int, int, int)));
+
+	killSupported = false;
+	setModified(false);
+}
+
+ProcessList::~ProcessList()
+{
+	delete(headerPM);
+}
+
+const QValueList<int>&
+ProcessList::getSelectedPIds()
+{
+	selectedPIds.clear();
+	// iterate through all selected visible items of the listview
+	QListViewItemIterator it(this, QListViewItemIterator::Visible | QListViewItemIterator::Selected );
+	for ( ; it.current(); ++it )
+		selectedPIds.append(it.current()->text(1).toInt());
+
+	return (selectedPIds);
+}
+
+const QStringList&
+ProcessList::getSelectedAsStrings()
+{
+	selectedAsStrings.clear();
+	// iterate through all selected visible items of the listview
+	QListViewItemIterator it(this, QListViewItemIterator::Visible | QListViewItemIterator::Selected );
+	QString spaces;
+	for ( ; it.current(); ++it ) {
+		spaces.fill(QChar(' '), 7 - it.current()->text(1).length());
+		selectedAsStrings.append("(PID: " + it.current()->text(1) + ")" + spaces + " " + it.current()->text(0));
+	}	
+
+	return (selectedAsStrings);
+}
+bool
+ProcessList::update(const QString& list)
+{
+	/* Disable painting to avoid flickering effects,
+	 * especially when in tree view mode.
+	 * Ditto for the scrollbar. */
+	setUpdatesEnabled(false);
+	viewport()->setUpdatesEnabled(false);
+
+	pl.clear();
+
+	// Convert ps answer in a list of tokenized lines
+	KSGRD::SensorTokenizer procs(list, '\n');
+	for (unsigned int i = 0; i < procs.count(); i++)
+	{
+		KSGRD::SensorPSLine* line = new KSGRD::SensorPSLine(procs[i]);
+		if (line->count() != (uint) columns())
+		{
+#if 0
+			// This is needed for debugging only.
+			kdDebug(1215) << list << endl;
+			QString l;
+			for (uint j = 0; j < line->count(); j++)
+				l += (*line)[j] + "|";
+			kdDebug(1215) << "Incomplete ps line:" << l << endl;
+#endif
+			return (false);
+		}
+		else
+			pl.append(line);
+	}
+
+	int currItemPos = itemPos(currentItem());
+	int vpos = verticalScrollBar()->value();
+	int hpos = horizontalScrollBar()->value();
+
+	updateMetaInfo();
+
+	clear();
+
+	if (treeViewEnabled)
+		buildTree();
+	else
+		buildList();
+
+	QListViewItemIterator it( this );
+	while ( it.current() ) {
+		if ( itemPos( it.current() ) == currItemPos ) {
+			setCurrentItem( it.current() );
+			break;
+		}
+		++it;
+	}
+
+	verticalScrollBar()->setValue(vpos);
+	horizontalScrollBar()->setValue(hpos);
+
+	// Re-enable painting, and force an update.
+	setUpdatesEnabled(true);
+	viewport()->setUpdatesEnabled(true);
+
+	triggerUpdate();
+
+	return (true);
+}
+
+void
+ProcessList::setTreeView(bool tv)
+{
+	if (treeViewEnabled = tv)
+	{
+		savedWidth[0] = columnWidth(0);
+		openAll = true;
+	}
+	else
+	{
+		/* In tree view the first column is wider than in list view mode.
+		 * So we shrink it to 1 pixel. The next update will resize it again
+		 * appropriately. */
+		setColumnWidth(0, savedWidth[0]);
+	}
+	/* In tree view mode borders are added to the icons. So we have to clear
+	 * the cache when we change the tree view mode. */
+	iconCache.clear();
+}
+
+bool
+ProcessList::load(QDomElement& el)
+{
+	QDomNodeList dnList = el.elementsByTagName("column");
+	for (uint i = 0; i < dnList.count(); ++i)
+	{
+		QDomElement lel = dnList.item(i).toElement();
+		if (savedWidth.count() <= i)
+			savedWidth.append(lel.attribute("savedWidth").toInt());
+		else
+			savedWidth[i] = lel.attribute("savedWidth").toInt();
+		if (currentWidth.count() <= i)
+			currentWidth.append(lel.attribute("currentWidth").toInt());
+		else
+			currentWidth[i] = lel.attribute("currentWidth").toInt();
+		if (index.count() <= i)
+			index.append(lel.attribute("index").toInt());
+		else
+			index[i] = lel.attribute("index").toInt();
+	}
+
+	setModified(false);
+
+	return (true);
+}
+
+bool
+ProcessList::save(QDomDocument& doc, QDomElement& display)
+{
+	for (int i = 0; i < columns(); ++i)
+	{
+		QDomElement col = doc.createElement("column");
+		display.appendChild(col);
+		col.setAttribute("currentWidth", columnWidth(i));
+		col.setAttribute("savedWidth", savedWidth[i]);
+		col.setAttribute("index", header()->mapToIndex(i));
+	}
+
+	setModified(false);
+
+	return (true);
+}
+
+void
+ProcessList::sortingChanged(int col)
+{
+	if (col == sortColumn)
+		increasing = !increasing;
+	else
+	{
+		sortColumn = col;
+		increasing = true;
+	}
+	setSorting(sortColumn, increasing);
+	setModified(true);
+}
+
+int ProcessList::columnType( uint pos ) const
+{
+  if ( pos >= mColumnTypes.count() )
+    return 0;
+
+  if ( mColumnTypes[ pos ] == "d" || mColumnTypes[ pos ] == "D" )
+    return Int;
+  else if ( mColumnTypes[ pos ] == "f" || mColumnTypes[ pos ] == "F" )
+    return Float;
+  else if ( mColumnTypes[ pos ] == "t" )
+    return Time;
+  else
+    return Text;
+}
+
+bool
+ProcessList::matchesFilter(KSGRD::SensorPSLine* p) const
+{
+	// This mechanism is likely to change in the future!
+
+	switch (filterMode)
+	{
+	case FILTER_ALL:
+		return (true);
+
+	case FILTER_SYSTEM:
+		return (p->uid() < 100 ? true : false);
+
+	case FILTER_USER:
+		return (p->uid() >= 100 ? true : false);
+
+	case FILTER_OWN:
+	default:
+		return (p->uid() == (long) getuid() ? true : false);
+	}
+}
+
+void
+ProcessList::buildList()
+{
+	/* Get the first process in the list, check whether it matches the
+	 * filter and append it to QListView widget if so. */
+	while (!pl.isEmpty())
+	{
+		KSGRD::SensorPSLine* p = pl.first();
+
+		if (matchesFilter(p))
+		{
+			ProcessLVI* pli = new ProcessLVI(this);
+
+			addProcess(p, pli);
+
+			if (selectedPIds.findIndex(p->pid()) != -1)
+				pli->setSelected(true);
+		}
+		pl.removeFirst();
+	}
+}
+
+void
+ProcessList::buildTree()
+{
+	// remove all leaves that do not match the filter
+	deleteLeaves();
+
+	KSGRD::SensorPSLine* ps = pl.first();
+
+	while (ps)
+	{
+		if (ps->pid() == INIT_PID)
+		{
+			// insert root item into the tree widget
+			ProcessLVI* pli = new ProcessLVI(this);
+			addProcess(ps, pli);
+
+			// remove the process from the process list, ps is now invalid
+			int pid = ps->pid();
+			pl.remove();
+
+			if (selectedPIds.findIndex(pid) != -1)
+				pli->setSelected(true);
+
+			// insert all child processes of current process
+			extendTree(&pl, pli, pid);
+			break;
+		}
+		else
+			ps = pl.next();
+	}
+}
+
+void
+ProcessList::deleteLeaves(void)
+{
+	for ( ; ; )
+	{
+		unsigned int i;
+		for (i = 0; i < pl.count() &&
+				 (!isLeafProcess(pl.at(i)->pid()) ||
+				  matchesFilter(pl.at(i))); i++)
+			;
+		if (i == pl.count())
+			return;
+
+		pl.remove(i);
+	}
+}
+
+bool
+ProcessList::isLeafProcess(int pid)
+{
+	for (unsigned int i = 0; i < pl.count(); i++)
+		if (pl.at(i)->ppid() == pid)
+			return (false);
+
+	return (true);
+}
+
+void
+ProcessList::extendTree(QPtrList<KSGRD::SensorPSLine>* pl, ProcessLVI* parent, int ppid)
+{
+	KSGRD::SensorPSLine* ps;
+
+	// start at top list
+	ps = pl->first();
+
+	while (ps)
+	{
+		// look for a child process of the current parent
+		if (ps->ppid() == ppid)
+		{
+			ProcessLVI* pli = new ProcessLVI(parent);
+
+			addProcess(ps, pli);
+
+			if (selectedPIds.findIndex(ps->pid()) != -1)
+				pli->setSelected(true);
+
+			if (ps->ppid() != INIT_PID && closedSubTrees.findIndex(ps->ppid()) != -1)
+				parent->setOpen(false);
+			else
+				parent->setOpen(true);
+
+			// remove the process from the process list, ps is now invalid
+			int pid = ps->pid();
+			pl->remove();
+
+			// now look for the childs of the inserted process
+			extendTree(pl, pli, pid);
+
+			/* Since buildTree can remove processes from the list we
+			 * can't find a "current" process. So we start searching
+			 * at the top again. It's no endless loops since this
+			 * branch is only entered when there are children of the
+			 * current parent in the list. When we have removed them
+			 * all the while loop will exit. */
+			ps = pl->first();
+		}
+		else
+			ps = pl->next();
+	}
+}
+void
+ProcessList::addProcess(KSGRD::SensorPSLine* p, ProcessLVI* pli)
+{
+	QString name = p->name();
+	if (aliases[name])
+		name = *aliases[name];
+
+	/* Get icon from icon list that might be appropriate for a process
+	 * with this name. */
+	QPixmap pix;
+	if (!iconCache[name])
+	{
+		pix = KGlobal::iconLoader()->loadIcon(name, KIcon::Small,
+							  KIcon::SizeSmall, KIcon::DefaultState,
+							  0L, true);
+		if (pix.isNull() || !pix.mask())
+			pix = KGlobal::iconLoader()->loadIcon("unknownapp", KIcon::User,
+								  KIcon::SizeSmall);
+
+		if (pix.width() != 16 || pix.height() != 16)
+		{
+			/* I guess this isn't needed too often. The KIconLoader should
+			 * scale the pixmaps already appropriately. Since I got a bug
+			 * report claiming that it doesn't work with GNOME apps I've
+			 * added this safeguard. */
+			QImage img;
+			img = pix;
+			img.smoothScale(16, 16);
+			pix = img;
+		}
+		/* We copy the icon into a 24x16 pixmap to add a 4 pixel margin on
+		 * the left and right side. In tree view mode we use the original
+		 * icon. */
+		QPixmap icon(24, 16, pix.depth());
+		if (!treeViewEnabled)
+		{
+			icon.fill();
+			bitBlt(&icon, 4, 0, &pix, 0, 0, pix.width(), pix.height());
+			QBitmap mask(24, 16, true);
+			bitBlt(&mask, 4, 0, pix.mask(), 0, 0, pix.width(), pix.height());
+			icon.setMask(mask);
+			pix = icon;
+		}
+		iconCache.insert(name, new QPixmap(pix));
+	}
+	else
+		pix = *(iconCache[name]);
+
+	// icon + process name
+	pli->setPixmap(0, pix);
+	pli->setText(0, p->name());
+
+	// insert remaining field into table
+	for (unsigned int col = 1; col < p->count(); col++)
+	{
+		if (mColumnTypes[col] == "S" && columnDict[(*p)[col]])
+			pli->setText(col, *columnDict[(*p)[col]]);
+		else if ( mColumnTypes[col] == "f" )
+      pli->setText( col, KGlobal::locale()->formatNumber( (*p)[col].toFloat() ) );
+    else if ( mColumnTypes[col] == "D" )
+      pli->setText( col, KGlobal::locale()->formatNumber( (*p)[col].toInt(), 0 ) );
+    else
+			pli->setText(col, (*p)[col]);
+	}
+}
+
+void
+ProcessList::updateMetaInfo(void)
+{
+	selectedPIds.clear();
+	closedSubTrees.clear();
+
+	QListViewItemIterator it(this);
+
+	// iterate through all items of the listview
+	for ( ; it.current(); ++it )
+	{
+		if (it.current()->isSelected() && it.current()->isVisible())
+			selectedPIds.append(it.current()->text(1).toInt());
+		if (treeViewEnabled && !it.current()->isOpen())
+			closedSubTrees.append(it.current()->text(1).toInt());
+	}
+
+	/* In list view mode all list items are set to closed by QListView.
+	 * If the tree view is now selected, all item will be closed. This is
+	 * annoying. So we use the openAll flag to force all trees to open when
+	 * the treeViewEnbled flag was set to true. */
+	if (openAll)
+	{
+		if (treeViewEnabled)
+			closedSubTrees.clear();
+		openAll = false;
+	}
+}
+
+void
+ProcessList::removeColumns(void)
+{
+	for (int i = columns() - 1; i >= 0; --i)
+		removeColumn(i);
+}
+
+void
+ProcessList::addColumn(const QString& label, const QString& type)
+{
+	QListView::addColumn(label);
+	uint col = columns() - 1;
+	if (type == "s" || type == "S")
+		setColumnAlignment(col, AlignLeft);
+	else if (type == "d" || type == "D")
+		setColumnAlignment(col, AlignRight);
+	else if (type == "t")
+		setColumnAlignment(col, AlignRight);
+	else if (type == "f")
+		setColumnAlignment(col, AlignRight);
+	else
+	{
+		kdDebug(1215) << "Unknown type " << type << " of column " << label
+				  << " in ProcessList!" << endl;
+		return;
+	}
+
+	mColumnTypes.append(type);
+
+	/* Just use some sensible default values as initial setting. */
+	QFontMetrics fm = fontMetrics();
+	setColumnWidth(col, fm.width(label) + 10);
+
+	if (currentWidth.count() - 1 == col)
+	{
+		/* Table has been loaded from file. We can restore the settings
+		 * when the last column has been added. */
+		for (uint i = 0; i < col; ++i)
+		{
+			/* In case the language has been changed the column width
+			 * might need to be increased. */
+			if (currentWidth[i] == 0)
+			{
+				if (fm.width(header()->label(i)) + 10 > savedWidth[i])
+					savedWidth[i] = fm.width(header()->label(i)) + 10;
+				setColumnWidth(i, 0);
+			}
+			else
+			{
+				if (fm.width(header()->label(i)) + 10 > currentWidth[i])
+					setColumnWidth(i, fm.width(header()->label(i)) + 10);
+				else
+					setColumnWidth(i, currentWidth[i]);
+			}
+			setColumnWidthMode(i, currentWidth[i] == 0 ?
+							   QListView::Manual : QListView::Maximum);
+			header()->moveSection(i, index[i]);
+		}
+		setSorting(sortColumn, increasing);
+	}
+}
+
+void
+ProcessList::handleRMBPressed(QListViewItem* lvi, const QPoint& p, int col)
+{
+	if (!lvi)
+		return;
+
+  lvi->setSelected( true );
+
+	/* lvi is only valid until the next time we hit the main event
+	 * loop. So we need to save the information we need after calling
+	 * processPM->exec(). */
+	int currentPId = lvi->text(1).toInt();
+
+	int currentNiceValue = 0;
+	for (int i = 0; i < columns(); ++i)
+		if (QString::compare(header()->label(i), i18n("Nice")) == 0)
+			currentNiceValue = lvi->text(i).toInt();
+
+	QPopupMenu processPM;
+  if (columnWidth(col) != 0)
+  	processPM.insertItem(i18n("Hide Column"), 5);
+	QPopupMenu* hiddenPM = new QPopupMenu(&processPM);
+	for (int i = 0; i < columns(); ++i)
+		if (columnWidth(i) == 0)
+			hiddenPM->insertItem(header()->label(i), i + 100);
+	if(columns())
+	  processPM.insertItem(i18n("Show Column"), hiddenPM);
+
+	processPM.insertSeparator();
+
+	processPM.insertItem(i18n("Select All Processes"), 1);
+	processPM.insertItem(i18n("Unselect All Processes"), 2);
+
+	QPopupMenu* signalPM = new QPopupMenu(&processPM);
+	if (killSupported && lvi->isSelected())
+	{
+		processPM.insertSeparator();
+		processPM.insertItem(i18n("Select All Child Processes"), 3);
+		processPM.insertItem(i18n("Unselect All Child Processes"), 4);
+
+		signalPM->insertItem(i18n("SIGABRT"), MENU_ID_SIGABRT);
+		signalPM->insertItem(i18n("SIGALRM"), MENU_ID_SIGALRM);
+		signalPM->insertItem(i18n("SIGCHLD"), MENU_ID_SIGCHLD);
+		signalPM->insertItem(i18n("SIGCONT"), MENU_ID_SIGCONT);
+		signalPM->insertItem(i18n("SIGFPE"), MENU_ID_SIGFPE);
+		signalPM->insertItem(i18n("SIGHUP"), MENU_ID_SIGHUP);
+		signalPM->insertItem(i18n("SIGILL"), MENU_ID_SIGILL);
+		signalPM->insertItem(i18n("SIGINT"), MENU_ID_SIGINT);
+		signalPM->insertItem(i18n("SIGKILL"), MENU_ID_SIGKILL);
+		signalPM->insertItem(i18n("SIGPIPE"), MENU_ID_SIGPIPE);
+		signalPM->insertItem(i18n("SIGQUIT"), MENU_ID_SIGQUIT);
+		signalPM->insertItem(i18n("SIGSEGV"), MENU_ID_SIGSEGV);
+		signalPM->insertItem(i18n("SIGSTOP"), MENU_ID_SIGSTOP);
+		signalPM->insertItem(i18n("SIGTERM"), MENU_ID_SIGTERM);
+		signalPM->insertItem(i18n("SIGTSTP"), MENU_ID_SIGTSTP);
+		signalPM->insertItem(i18n("SIGTTIN"), MENU_ID_SIGTTIN);
+		signalPM->insertItem(i18n("SIGTTOU"), MENU_ID_SIGTTOU);
+		signalPM->insertItem(i18n("SIGUSR1"), MENU_ID_SIGUSR1);
+		signalPM->insertItem(i18n("SIGUSR2"), MENU_ID_SIGUSR2);
+
+		processPM.insertSeparator();
+		processPM.insertItem(i18n("Send Signal"), signalPM);
+	}
+
+	/* differ between killSupported and reniceSupported in a future
+	 * version. */
+	if (killSupported && lvi->isSelected())
+	{
+		processPM.insertSeparator();
+		processPM.insertItem(i18n("Renice Process..."), 300);
+	}
+
+	int id;
+	switch (id = processPM.exec(p))
+	{
+	case -1:
+		break;
+	case 1:
+	case 2:
+		selectAllItems(id & 1);
+		break;
+	case 3:
+	case 4:
+		selectAllChilds(currentPId, id & 1);
+		break;
+	case 5:
+		setColumnWidthMode(col, QListView::Manual);
+		savedWidth[col] = columnWidth(col);
+		setColumnWidth(col, 0);
+		setModified(true);
+		break;
+	case 300:
+		{
+		ReniceDlg reniceDlg(this, "reniceDlg", currentNiceValue, currentPId);
+
+		int reniceVal;
+		if ((reniceVal = reniceDlg.exec()) != 40) {
+			emit reniceProcess(selectedPIds, reniceVal);
+		}
+		}
+		break;
+	default:
+		/* IDs < 100 are used for signals. */
+		if (id < 100)
+		{
+			/* we go through list to get all task also
+			   when update interval is paused */
+			selectedPIds.clear();
+			QListViewItemIterator it(this, QListViewItemIterator::Visible | QListViewItemIterator::Selected);
+
+			// iterate through all selected visible items of the listview
+			for ( ; it.current(); ++it )
+			{
+				selectedPIds.append(it.current()->text(1).toInt());
+			}
+
+			QString msg = i18n("Do you really want to send signal %1 to the selected process?", 
+					"Do you really want to send signal %1 to the %n selected processes?",
+					selectedPIds.count())
+				.arg(signalPM->text(id));
+			int answ;
+			switch(answ = KMessageBox::questionYesNo(this, msg, QString::null, i18n("Send"), KStdGuiItem::cancel()))
+			{
+			case KMessageBox::Yes:
+			{
+				QValueList<int>::Iterator it;
+				for (it = selectedPIds.begin(); it != selectedPIds.end(); ++it)
+					emit (killProcess(*it, id));
+				break;
+			}
+			default:
+				break;
+			}
+		}
+		else
+		{
+			/* IDs >= 100 are used for hidden columns. */
+			int col = id - 100;
+			setColumnWidthMode(col, QListView::Maximum);
+			setColumnWidth(col, savedWidth[col]);
+			setModified(true);
+		}
+	}
+}
+
+void
+ProcessList::selectAllItems(bool select)
+{
+	selectedPIds.clear();
+
+	QListViewItemIterator it(this, QListViewItemIterator::Visible);
+
+	// iterate through all items of the listview
+	for ( ; it.current(); ++it )
+	{
+		it.current()->setSelected(select);
+		repaintItem(it.current());
+		if (select)
+			selectedPIds.append(it.current()->text(1).toInt());
+	}
+}
+
+void
+ProcessList::selectAllChilds(int pid, bool select)
+{
+	QListViewItemIterator it(this, QListViewItemIterator::Visible );
+
+	// iterate through all items of the listview
+	for ( ; it.current(); ++it )
+	{
+		// Check if PPID matches the pid (current is a child of pid)
+		if (it.current()->text(2).toInt() == pid)
+		{
+			int currPId = it.current()->text(1).toInt();
+			it.current()->setSelected(select);
+			repaintItem(it.current());
+			if (select)
+				selectedPIds.append(currPId);
+			else
+				selectedPIds.remove(currPId);
+			selectAllChilds(currPId, select);
+		}
+	}
+}
+
+#include "ProcessList.moc"