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277 lines
6.2 KiB
277 lines
6.2 KiB
/*
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KSysGuard, the KDE System Guard
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Copyright (c) 1999, 2000 Chris Schlaeger <cs@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of version 2 of the GNU General Public
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License as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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KSysGuard is currently maintained by Chris Schlaeger <cs@kde.org>.
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Please do not commit any changes without consulting me
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first. Thanks!
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*/
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#ifndef _ProcessList_h_
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#define _ProcessList_h_
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#include <tqdict.h>
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#include <tqdom.h>
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#include <tqstringlist.h>
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#include <tqvaluelist.h>
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#include <tqwidget.h>
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#include <kiconloader.h>
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#include <klistview.h>
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#include "SensorClient.h"
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typedef const char* (*KeyFunc)(const char*);
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/**
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* To support bi-directional sorting, and sorting of text, integers etc. we
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* need a specialized version of TQListViewItem.
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*/
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class ProcessLVI : public KListViewItem
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{
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public:
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ProcessLVI(TQListView* lv) : KListViewItem(lv) { }
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ProcessLVI(TQListViewItem* lvi) : KListViewItem(lvi) { }
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virtual int compare( TQListViewItem *item, int column, bool ) const;
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};
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class TQPopupMenu;
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/**
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* This class implementes a table filled with information about the running
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* processes. The table is derived from TQListView.
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*/
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class ProcessList : public KListView
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{
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Q_OBJECT
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public:
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// possible values for the filter mode
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enum
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{
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FILTER_ALL = 0,
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FILTER_SYSTEM,
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FILTER_USER,
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FILTER_OWN
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};
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enum ColumnType { Text, Int, Float, Time };
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/// The constructor.
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ProcessList(TQWidget* parent = 0, const char* name = 0);
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/// The destructor.
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~ProcessList();
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void removeColumns();
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void addColumn(const TQString& header, const TQString& type);
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void setSortColumn(uint col, bool inc)
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{
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sortColumn = col;
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increasing = inc;
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setSorting(col, inc);
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}
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uint getSortColumn() const
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{
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return sortColumn;
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}
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bool getIncreasing() const
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{
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return increasing;
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}
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const TQValueList<int>& getSelectedPIds();
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const TQStringList& getSelectedAsStrings();
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/**
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* The udpate function can be used to update the displayed process
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* list. A current list of processes is requested from the OS. In
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* case the list contains invalid or corrupted info, FALSE is
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* returned.
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*/
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bool update(const TQString& list);
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int columnType( uint col ) const;
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void setSensorOk(bool ok);
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void setKillSupported(bool supported)
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{
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killSupported = supported;
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}
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bool load(TQDomElement& el);
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bool save(TQDomDocument& doc, TQDomElement& display);
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public slots:
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void setTreeView(bool tv);
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/**
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* This slot allows the filter mode to be set by other
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* widgets. Possible values are FILTER_ALL, FILTER_SYSTEM,
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* FILTER_USER and FILTER_OWN. This filter mechanism will be much
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* more sophisticated in the future.
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*/
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void setFilterMode(int fm)
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{
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filterMode = fm;
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setModified(true);
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}
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void sortingChanged(int col);
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void handleRMBPressed(TQListViewItem* lvi, const TQPoint& p, int col);
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void sizeChanged(int, int, int)
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{
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setModified(true);
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}
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void indexChanged(int, int, int)
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{
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setModified(true);
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}
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virtual void setModified(bool mfd)
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{
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if (mfd != modified)
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{
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modified = mfd;
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emit listModified(modified);
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}
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}
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signals:
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// This signal is emitted when process pid should receive signal sig.
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void killProcess(int pid, int sig);
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// This signal is emitted when process pid should be reniced.
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void reniceProcess(const TQValueList<int> &pids, int niceValue);
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void listModified(bool);
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protected:
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void keyPressEvent(TQKeyEvent *e);
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void keyReleaseEvent(TQKeyEvent *e);
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private:
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// items of table header RMB popup menu
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enum
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{
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HEADER_REMOVE = 0,
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HEADER_ADD,
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HEADER_HELP
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};
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/**
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* This function updates the lists of selected PID und the closed
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* sub trees.
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*/
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void updateMetaInfo(void);
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/**
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* This function determines whether a process matches the current
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* filter mode or not. If it machtes the criteria it returns true,
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* false otherwise.
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*/
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bool matchesFilter(KSGRD::SensorPSLine* p) const;
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/**
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* This function constructs the list of processes for list
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* mode. It's a straightforward appending operation to the
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* TQListView widget.
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*/
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void buildList();
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/**
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* This function constructs the tree of processes for tree mode. It
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* filters out leaf-sub-trees that contain no processes that match
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* the filter criteria.
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*/
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void buildTree();
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/**
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* This function deletes the leaf-sub-trees that do not match the
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* filter criteria.
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*/
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void deleteLeaves(void);
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/**
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* This function returns true if the process is a leaf process with
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* respect to the other processes in the process list. It does not
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* have to be a leaf process in the overall list of processes.
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*/
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bool isLeafProcess(int pid);
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/**
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* This function is used to recursively construct the tree by
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* removing processes from the process list an inserting them into
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* the tree.
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*/
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void extendTree(TQPtrList<KSGRD::SensorPSLine>* pl, ProcessLVI* parent, int ppid);
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/**
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* This function adds a process to the list/tree.
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*/
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void addProcess(KSGRD::SensorPSLine* p, ProcessLVI* pli);
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private:
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void selectAllItems(bool select);
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void selectAllChilds(int pid, bool select);
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bool modified;
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int filterMode;
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int sortColumn;
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bool increasing;
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int refreshRate;
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int currColumn;
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bool killSupported;
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bool treeViewEnabled;
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bool openAll;
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bool ctrlKeyDown;
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bool shiftKeyDown;
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/* The following lists are primarily used to store table specs between
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* load() and the actual table creation in addColumn(). */
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TQValueList<int> savedWidth;
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TQValueList<int> currentWidth;
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TQValueList<int> index;
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TQPtrList<KSGRD::SensorPSLine> pl;
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TQStringList mColumnTypes;
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TQDict<TQString> columnDict;
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TQValueList<int> selectedPIds;
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TQValueList<int> closedSubTrees;
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TQStringList selectedAsStrings;
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static TQDict<TQString> aliases;
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TQDict<TQPixmap> iconCache;
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TQPopupMenu* headerPM;
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};
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#endif
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