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//***************************************************************************
/*
* TOra - An Oracle Toolkit for DBA's and developers
* Copyright (C) 2000-2001,2001 Underscore AB
*
* 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; only version 2 of
* the License is valid for this program.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* As a special exception, you have permission to link this program
* with the Oracle Client libraries and distribute executables, as long
* as you follow the requirements of the GNU GPL in regard to all of the
* software in the executable aside from Oracle client libraries.
*
* Specifically you are not permitted to link this program with the
* Qt/UNIX, Qt/Windows or Qt Non Commercial products of TrollTech.
* And you are not permitted to distribute binaries compiled against
* these libraries without written consent from Underscore AB. Observe
* that this does not disallow linking to the Qt Free Edition.
*
* All trademarks belong to their respective owners.
*
****************************************************************************/
#ifndef TOPIECHART_H
#define TOPIECHART_H
#include <list>
#include <qwidget.h>
class QPopupMenu;
/** A widget that displays a piechart.
*/
class toPieChart : public QWidget {
Q_OBJECT
std::list<double> Values;
std::list<QString> Labels;
QString Postfix;
bool Legend;
bool DisplayPercent;
QString Title;
QPopupMenu *Menu;
protected:
virtual void mouseDoubleClickEvent(QMouseEvent *e);
virtual void mousePressEvent(QMouseEvent *e);
public:
/** Create a new piechart.
* @param parent Parent widget.
* @param name Name of widget.
* @param f Widget flags.
*/
toPieChart(QWidget *parent=NULL,const char *name=NULL,WFlags f=0);
/** Create a copy of a piechart.
* @param pie Pie chart to copy.
* @param parent Parent widget.
* @param name Name of widget.
* @param f Widget flags.
*/
toPieChart(toPieChart *pie,QWidget *parent=NULL,const char *name=NULL,WFlags f=0);
/** Set the postfix text to append the current values when they are displayed in the
* pie.
* @param post Postfix string, no space will be added after the value before the string
* so if you want the space you need to specify it first in this string.
*/
void setPostfix(const QString &post)
{ Postfix=post; update(); }
/** Get the postfix string.
* @return Current postfix string.
*/
const QString &postfix(void) const
{ return Postfix; }
/** Set title of the chart. Set to empty string to not display title.
* @param title Title of chart.
*/
void setTitle(const QString &title=QString::null)
{ Title=title; update(); }
/** Get title of chart.
* @return Title of chart.
*/
const QString &title(void)
{ return Title; }
/** Display piecharts in percent instead of actual values
* @param pct Wether or not to display percent only.
*/
void setDisplayPercent(bool pct)
{ DisplayPercent=pct; update(); }
/** Check if only percent is displayed
* @return True if only percent is displayed.
*/
bool displayPercent(void) const
{ return DisplayPercent; }
/** Specify if legend should be displayed to the right of the graph, default is on.
* @param on Whether to display graph or not.
*/
void showLegend(bool on)
{ Legend=on; update(); }
/** Check if legend is displayed or not.
* @return If legend is displayed or not.
*/
bool legend(void) const
{ return Legend; }
/** Set value list of piechart.
* @param values List of values to display.
* @param labels List of labels, if label is empty it will not appear in legend.
*/
void setValues(std::list<double> &values,std::list<QString> &labels);
/** Add a value to the piechart.
* @param value New value to add.
* @param label Label of this new value.
*/
void addValue(double value,const QString &label)
{ Values.insert(Values.end(),value); Labels.insert(Labels.end(),label); update(); }
/** Get list of values.
* @return Values in piechart.
*/
std::list<double> &values(void)
{ return Values; }
/** Get labels of piechart.
* @return List of labels.
*/
std::list<QString> &labels(void)
{ return Labels; }
signals:
void newValues(std::list<double> &values,std::list<QString> &labels);
public slots:
/** Print the chart
*/
void editPrint(void);
/** Open in new window
*/
void openCopy(void);
protected:
/** Paint chart in a given rectangle.
*/
virtual void paintChart(QPainter *p,QRect rect);
/** Reimplemented for internal reasons.
*/
virtual void paintEvent(QPaintEvent *e);
};
#endif
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