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135 lines
4 KiB
C++
135 lines
4 KiB
C++
/****************************************************************************
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* System Monitor: Plasmoid and data engines to monitor CPU/Memory/Swap Usage.
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* Copyright (C) 2008 Matthew Dawson <matthewjd@gmail.com>
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* Copyright (C) 2008-2009 Dominik Haumann <dhaumann kde org>
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*
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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 the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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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*
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*****************************************************************************/
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#ifndef SYSTEMLOADVIEWER_H
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#define SYSTEMLOADVIEWER_H
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#include <Plasma/Applet>
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#include <Plasma/DataEngine>
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#include <QtCore/QVector>
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#include "ui_coloursconfig.h"
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#include "ui_generalconfig.h"
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class QString;
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class QSizeF;
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class QPainter;
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class QStyleOptionGraphicsItem;
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class QPoint;
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class SystemLoadViewer : public Plasma::Applet
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{
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Q_OBJECT
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struct CpuInfo;
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public:
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SystemLoadViewer(QObject *parent, const QVariantList &args);
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virtual ~SystemLoadViewer();
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virtual void constraintsEvent(Plasma::Constraints constraints);
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virtual void paintInterface(QPainter *painter, const QStyleOptionGraphicsItem *option, const QRect& contentsRect);
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virtual void init();
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virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const;
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protected:
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virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
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virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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public slots:
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void configChanged();
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protected slots:
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void dataUpdated(const QString& source, const Plasma::DataEngine::Data &data);
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void configUpdated();
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void sourcesAdded(const QString& source);
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void toolTipAboutToShow();
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private:
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void paintCPUUsage(QPainter *p, const QStyleOptionGraphicsItem *option, const QRect& contentsRect, const CpuInfo &cpu);
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void paintSwapUsage(QPainter *p, const QStyleOptionGraphicsItem *option, const QRect& contentsRect);
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void paintRAMUsage(QPainter *p, const QStyleOptionGraphicsItem *option, const QRect& contentsRect);
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void updateSize();
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qreal widthForHeight(qreal h) const;
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qreal heightForWidth(qreal w) const;
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inline int cpuCount() const;
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inline int barCount() const;
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void createConfigurationInterface(KConfigDialog *parent);
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void reconnectSources();
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void reconnectCPUSources();
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void disconnectSources();
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void disconnectCPUSources();
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void setVerticalBars(bool verticalOrientation);
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bool verticalBars() const;
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struct CpuInfo
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{
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double user, sys, nice, disk, clock;
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bool clockValid;
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CpuInfo(): user(0), sys(0), nice(0), disk(0), clock(0), clockValid(false) {}
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};
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QVector<CpuInfo> m_cpuInfo;
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CpuInfo m_systemCpuInfo;
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uint m_numCPUs;
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double m_ramfree;
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double m_ramused;
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double m_ramapps;
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double m_rambuffers;
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double m_ramcached;
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double m_ramtotal;
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double m_swapfree;
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double m_swapused;
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double m_swaptotal;
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Ui::generalConfig uiGeneral;
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Ui::coloursConfig uiColours;
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Qt::Orientation m_barOrientation;
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bool m_showMultiCPU;
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bool m_swapAvailable;
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int m_updateInterval;
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QColor m_cpuUserColour;
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QColor m_cpuNiceColour;
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QColor m_cpuDiskColour;
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QColor m_cpuSysColour;
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QColor m_ramCachedColour;
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QColor m_ramBuffersColour;
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QColor m_ramUserColour;
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QColor m_swapUsedColour;
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QColor m_freeResourceColor;
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QPoint m_mousePressLoc;
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Plasma::DataEngine *sys_mon;
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};
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K_EXPORT_PLASMA_APPLET(systemloadviewer, SystemLoadViewer)
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#endif // SYSTEMLOADVIEWER_H
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