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/* ksim - a system monitor for kde
*
* Copyright (C) 2001 Robbie Ward <linuxphreak@gmx.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
#ifndef KSIM__CHART_H
#define KSIM__CHART_H
#include <tqwidget.h>
#include "common.h"
#include <kdemacros.h>
class QColor;
namespace KSim
{
/**
* provides a graph displaying data onscreen using gkrellm themes
* @author Robbie Ward <linuxphreak@gmx.co.uk>
*/
class KDE_EXPORT Chart : public TQWidget, public KSim::Base
{
Q_OBJECT
public:
enum DataType { DataIn = 0, DataOut };
enum LabelType { Label = 0, Progress, Led };
/**
* Constructs a KSim::Chart.
*
* @param displayMeter is if the krellbar should be shown
* @param minValue is the minimum value to show
* @param maxValue is the maximum value to show
* @param title is the title off the krell bar (if enabled)
* @param parent is the parent widget
*/
Chart(bool displayMeter, int maxValue,
const TQString &title, TQWidget *parent,
const char *name = 0, WFlags fl = 0);
/**
* Constructs a KSim::Chart.
*
* @param showKrell is if the krellbar should be shown
* @param minValue is the minimum value to show
* @param maxValue is the maximum value to show
* @param parent is the parent widget
*/
Chart(bool displayMeter, int maxValue,
TQWidget *parent, const char *name = 0,
WFlags fl = 0);
/**
* destructs KSim::Chart
*/
virtual ~Chart();
/**
* returns the current text of the chart
*/
const TQString &text(DataType type) const;
/**
* @return the title of the chart
*/
const TQString &title() const;
/**
* @return true if the meter is enabled
*/
bool displayMeter() const;
/**
* @return the minimum value
*/
int minValue() const;
/**
* @return the minimum value
*/
int maxValue() const;
/**
* @return the current value
*/
int value(DataType dataType) const;
/**
* sets the type of the label that will appear under the graph
*/
void setLabelType(LabelType labelType);
/**
* @return the current label type, one of: Label, Progress, Led
*/
LabelType labelType() const;
/**
* reimplemented for internal reasons
*/
virtual void configureObject(bool repaintWidget = true);
/**
* reimplemented for internal reasons
*/
TQSize sizeHint() const;
/**
* reimplemented for internal reasons
*/
TQSize minimumSizeHint() const;
void disableAutomaticUpdates();
public slots:
/**
* Cleats the graphs contents
*/
void clear();
/**
* sets the title of the chart, this function returns if
* the optional krell widget is disabled
*/
void setTitle(const TQString &);
/**
* turns the meter on and off
*/
void setDisplayMeter(bool);
/**
* sets the current text that apears in the top left hand corner
*/
void setText(const TQString &in, const TQString &out = TQString::null);
/**
* Sets the minimum value the graph will display
*/
void setMinValue(int);
/**
* Sets the maximum value the graph will display
*/
void setMaxValue(int);
/**
* sets the value of the graph
*/
void setValue(int valueIn, int valueOut = 0);
protected:
/**
* Set the config values depending on the chart type
*/
void setConfigValues();
/**
* reimplemented for internal reasons
*/
virtual void extraTypeCall();
TQColor chartColour(const DataType &dataType, int x = 1, int y = 1) const;
virtual void paintEvent(TQPaintEvent *);
virtual void fontChange(const TQFont &);
virtual void resizeEvent(TQResizeEvent *re);
protected slots:
void updateDisplay();
private:
void buildPixmaps();
int yLocation(int) const;
void drawChart();
TQSize chartSize() const;
TQBitmap drawMask(TQPainter *);
void drawIn(TQPainter *, int, int, bool = false);
void drawOut(TQPainter *, int, int, bool = false);
int range(int) const;
void init(bool, int, const TQString &);
class Timer;
class Private;
Private *d;
};
}
#endif
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