Implementing charting...

6 files changed, 241 insertions, 39 deletions

diff --git a/noncore/apps/checkbook/checkbook.cpp b/noncore/apps/checkbook/checkbook.cpp
index 20b42b5..77c1f57 100644
--- a/noncore/apps/checkbook/checkbook.cpp
+++ b/noncore/apps/checkbook/checkbook.cpp
@@ -211,75 +211,72 @@ QWidget *Checkbook::initTransactions()
         QPEApplication::setStylusOperation( tranTable->viewport(), QPEApplication::RightOnHold );
         connect( tranTable, SIGNAL( rightButtonPressed( QListViewItem *, const QPoint &, int ) ),
                          this, SLOT( slotEditTran() ) );
 
         QPushButton *btn = new QPushButton( Resource::loadPixmap( "new" ), tr( "New" ), control );
         QWhatsThis::add( btn, tr( "Click here to add a new transaction." ) );
         connect( btn, SIGNAL( clicked() ), this, SLOT( slotNewTran() ) );
         layout->addWidget( btn, 2, 0 );
 
         btn = new QPushButton( Resource::loadPixmap( "edit" ), tr( "Edit" ), control );
         QWhatsThis::add( btn, tr( "Select a transaction and then click here to edit it." ) );
         connect( btn, SIGNAL( clicked() ), this, SLOT( slotEditTran() ) );
         layout->addWidget( btn, 2, 1 );
 
         btn = new QPushButton( Resource::loadPixmap( "trash" ), tr( "Delete" ), control );
         QWhatsThis::add( btn, tr( "Select a checkbook and then click here to delete it." ) );
         connect( btn, SIGNAL( clicked() ), this, SLOT( slotDeleteTran() ) );
         layout->addWidget( btn, 2, 2 );
 
         return( control );
 }
 
 QWidget *Checkbook::initCharts()
 {
+        graphInfo = 0x0;
+
         QWidget *control = new QWidget( mainWidget );
 
         QGridLayout *layout = new QGridLayout( control );
         layout->setSpacing( 2 );
         layout->setMargin( 4 );
 
-/*
-        QLabel *label = new QLabel( control );
-        label->setText( tr( "Graph type:" ) );
-        layout->addWidget( label, 0, 0 );
+        graphWidget = new Graph( control );
+        QWhatsThis::add( graphWidget, tr( "Select the desired chart below and then click on the Draw button." ) );
+        layout->addMultiCellWidget( graphWidget, 0, 0, 0, 2 );
+
         graphList = new QComboBox( control );
-        graphList->insertItem( tr( "By category" ) );
-        graphList->insertItem( tr( "..." ) );
-        graphList->insertItem( tr( "..." ) );
-        layout->addWidget( graphList, 0, 1 );
-*/
+        QWhatsThis::add( graphList, tr( "Click here to select the desired chart type." ) );
+        graphList->insertItem( tr( "Account balance" ) );
+        graphList->insertItem( tr( "Withdrawals by category" ) );
+        graphList->insertItem( tr( "Deposits by category" ) );
 
-        GraphInfo* info = new GraphInfo( GraphInfo::BarChart, 0x0, tr( "Graph Title" ),
-                                                                         tr( "X-Axis" ), tr( "Y-Axis" ) );
-        graphWidget = new Graph( control, info );
-        QWhatsThis::add( graphWidget, tr( "Charting is not implemented yet." ) );
-        layout->addMultiCellWidget( graphWidget, 0, 0, 0, 1 );
+        layout->addMultiCellWidget( graphList, 1, 1, 0, 1 );
 
         QPushButton *btn = new QPushButton( Resource::loadPixmap( "checkbook/drawbtn" ), tr( "Draw" ), control );
-        QWhatsThis::add( btn, tr( "Click here to draw the chart." ) );
+        QWhatsThis::add( btn, tr( "Click here to draw the selected chart." ) );
         connect( btn, SIGNAL( clicked() ), this, SLOT( slotDrawGraph() ) );
-        layout->addWidget( btn, 1, 1 );
+        layout->addWidget( btn, 1, 2 );
 
         return control;
 }
 
 void Checkbook::loadCheckbook()
 {
         transactions.clear();
 
         Config config(filename, Config::File);
 
         // Load info
         config.setGroup( "Account" );
         nameEdit->setText( name );
         QString temptext = config.readEntry( "Type" );
         int i = typeList->count();
         while ( i > 0 )
         {
                 i--;
                 typeList->setCurrentItem( i );
                 if ( typeList->currentText() == temptext )
                 {
                         break;
                 }
         }
@@ -346,54 +343,52 @@ TranInfo *Checkbook::findTranByID( int id )
         }
         return( traninfo );
 }
 
 void Checkbook::accept()
 {
         QFile f( filename );
         if ( f.exists() )
         {
                 f.remove();
         }
 
         Config *config = new Config(filename, Config::File);
 
         // Save info
         config->setGroup( "Account" );
         config->writeEntry( "Type", typeList->currentText() );
         config->writeEntry( "Bank", bankEdit->text() );
         config->writeEntryCrypt( "Number", acctNumEdit->text() );
         config->writeEntryCrypt( "PINNumber", pinNumEdit->text() );
         config->writeEntry( "Balance", balanceEdit->text() );
         config->writeEntry( "Notes", notesEdit->text() );
 
         // Save transactions
-        TranInfo *tran = transactions.first();
         int i = 1;
-        while ( tran )
+        for ( TranInfo *tran = transactions.first(); tran; tran = transactions.next() )
         {
                 tran->write( config, i );
-                tran = transactions.next();
                 i++;
         }
         config->write();
 
         QDialog::accept();
 }
 
 void Checkbook::slotNameChanged( const QString &newname )
 {
         name = newname;
         filename = filedir;
         filename.append( newname );
         filename.append( ".qcb" );
         QString tempstr = name;
         tempstr.append( " - " );
         tempstr.append( tr( "Checkbook" ) );
         setCaption( tempstr );
 }
 
 void Checkbook::slotStartingBalanceChanged( const QString &newbalance )
 {
         currBalance -= startBalance;
         bool ok;
         startBalance = newbalance.toFloat( &ok );
@@ -488,25 +483,114 @@ void Checkbook::slotDeleteTran()
         }
 
         bool ok;
         int tranid = curritem->text( 0 ).toInt( &ok );
         TranInfo *traninfo = findTranByID( tranid );
 
         if ( QPEMessageBox::confirmDelete ( this, tr( "Delete transaction" ), traninfo->desc() ) )
         {
                 float amount = traninfo->amount();
                 if ( traninfo->withdrawal() )
                 {
                         amount *= -1;
                 }
 
                 transactions.remove( traninfo );
                 delete traninfo;
                 delete curritem;
 
                 adjustBalance( amount * -1 );
         }
 }
 
 void Checkbook::slotDrawGraph()
 {
+        if ( graphInfo )
+        {
+                delete graphInfo;
+        }
+
+        switch ( graphList->currentItem() )
+        {
+                case 0 : drawBalanceChart();
+                        break;
+                case 1 : drawCategoryChart( TRUE );
+                        break;
+                case 2 : drawCategoryChart( FALSE );
+                        break;
+        };
+
+        graphWidget->setGraphInfo( graphInfo );
+        graphWidget->drawGraph( TRUE );
+}
+
+void Checkbook::drawBalanceChart()
+{
+        DataPointList *list = new DataPointList();
+
+        float balance = startBalance;
+        float amount;
+        QString label;
+        int i = 0;
+        int count = transactions.count();
+
+        for ( TranInfo *tran = transactions.first(); tran; tran = transactions.next() )
+        {
+                i++;
+                balance -= tran->fee();
+                amount = tran->amount();
+                if ( tran->withdrawal() )
+                {
+                        amount *= -1;
+                }
+                balance += amount;
+                if ( i == 1 || i == count / 2 || i == count )
+                {
+                        label = tran->datestr();
+                }
+                else
+                {
+                        label = "";
+                }
+                list->append( new DataPointInfo( label, balance ) );
+        }
+
+        graphInfo = new GraphInfo( GraphInfo::BarChart, list );
+}
+
+void Checkbook::drawCategoryChart( bool withdrawals )
+{
+        DataPointList *list = new DataPointList();
+
+        TranInfo *tran = transactions.first();
+        if ( tran->withdrawal() == withdrawals )
+        {
+                list->append( new DataPointInfo( tran->category(), tran->amount() ) );
+        }
+        tran = transactions.next();
+
+        DataPointInfo *cat;
+        for ( ; tran; tran = transactions.next() )
+        {
+                if ( tran->withdrawal() == withdrawals )
+                {
+                        // Find category in list
+                        for ( cat = list->first(); cat; cat = list->next() )
+                        {
+                                if ( cat->label() == tran->category() )
+                                {
+                                        break;
+                                }
+                        }
+                        if ( cat && cat->label() == tran->category() )
+                        { // Found category, add to transaction to category total
+                                cat->addToValue( tran->amount() );
+                        }
+                        else
+                        { // Didn't find category, add category to list
+                                list->append( new DataPointInfo( tran->category(), tran->amount() ) );
+                        }
+                }
+        }
+
+        graphInfo = new GraphInfo( GraphInfo::PieChart, list );
 }
diff --git a/noncore/apps/checkbook/checkbook.h b/noncore/apps/checkbook/checkbook.h
index 01f1115..287788a 100644
--- a/noncore/apps/checkbook/checkbook.h
+++ b/noncore/apps/checkbook/checkbook.h
@@ -15,89 +15,94 @@
     : ..    .:,     . . .    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 file;
   -_. . .   )=.  =           see the file COPYING. If not, write to the
     --        :-=`           Free Software Foundation, Inc.,
                              59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #ifndef CHECKBOOK_H
 #define CHECKBOOK_H
 
 #include "traninfo.h"
 
 #include <qdialog.h>
 
 class OTabWidget;
 
 class Graph;
+class GraphInfo;
 class QComboBox;
 class QLabel;
 class QLineEdit;
 class QListView;
 class QMultiLineEdit;
 class QString;
 
 class Checkbook : public QDialog
 {
         Q_OBJECT
 
         public:
                 Checkbook( QWidget * = 0x0, const QString & = 0x0, const QString & = 0x0, char = '$' );
                 ~Checkbook();
 
                 const QString &getName();
 
         private:
                 TranInfoList transactions;
                 QString      name;
                 QString      filename;
                 QString      filedir;
                 char         currencySymbol;
                 int          highTranNum;
 
                 OTabWidget *mainWidget;
                 void        loadCheckbook();
                 void        adjustBalance( float );
                 TranInfo   *findTranByID( int );
 
                 // Info tab
                 QWidget        *initInfo();
                 QLineEdit      *nameEdit;
                 QComboBox      *typeList;
                 QLineEdit      *bankEdit;
                 QLineEdit      *acctNumEdit;
                 QLineEdit      *pinNumEdit;
                 QLineEdit      *balanceEdit;
                 QMultiLineEdit *notesEdit;
                 float           startBalance;
 
                 // Transactions tab
                 QWidget   *initTransactions();
                 QListView *tranTable;
                 QLabel    *balanceLabel;
                 float      currBalance;
 
                 // Charts tab
-                QWidget    *initCharts();
-                //QComboBox *graphList;
-                Graph      *graphWidget;
+                QWidget   *initCharts();
+                GraphInfo *graphInfo;
+                QComboBox *graphList;
+                Graph     *graphWidget;
+
+                void drawBalanceChart();
+                void drawCategoryChart( bool = TRUE );
 
         protected slots:
                 void accept();
 
         private slots:
                 void slotNameChanged( const QString & );
                 void slotStartingBalanceChanged( const QString & );
                 void slotNewTran();
                 void slotEditTran();
                 void slotDeleteTran();
                 void slotDrawGraph();
 };
 
 #endif
diff --git a/noncore/apps/checkbook/graph.cpp b/noncore/apps/checkbook/graph.cpp
index bae92da..a0d8b78 100644
--- a/noncore/apps/checkbook/graph.cpp
+++ b/noncore/apps/checkbook/graph.cpp
@@ -8,105 +8,172 @@
 :`=1 )Y*s>-.--   :           the terms of the GNU General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This file 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 file;
   -_. . .   )=.  =           see the file COPYING. If not, write to the
     --        :-=`           Free Software Foundation, Inc.,
                              59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #include "graph.h"
 #include "graphinfo.h"
 
+#include <qcolor.h>
+#include <qfontmetrics.h>
 #include <qpainter.h>
 
 Graph::Graph( QWidget *parent, GraphInfo *d, const QString &name, int flags )
         : QWidget( parent, name, flags )
 {
-        setBackgroundMode( QWidget::PaletteBase );
-
         data = d;
 
         graph.setOptimization( QPixmap::BestOptim );
 }
 
 void Graph::setGraphInfo( GraphInfo *d )
 {
         data = d;
 }
 
 void Graph::drawGraph( bool regen )
 {
         if ( regen )
         {
                 initGraph();
         }
         QPainter p( this );
         p.drawPixmap( 0, 0, graph );
 }
 
 void Graph::paintEvent( QPaintEvent * )
 {
         drawGraph( FALSE );
 }
 
 void Graph::resizeEvent( QResizeEvent * )
 {
         drawGraph( TRUE );
 }
 
 void Graph::initGraph()
 {
         graph.resize( width(), height() );
         graph.fill( QColor( 255, 255, 255 ) );
 
         if ( !data )
         {
                 return;
         }
 
         // Any common stuff here (titles, ???)
 
         switch ( data->graphType() )
         {
                 case GraphInfo::BarChart :
                 {
-                        drawBarChart();
+                        drawBarChart( width(), height(), data->maxValue() );
                 }
                 break;
                 case GraphInfo::LineChart :
                 {
-                        drawLineChart();
+                        //drawLineChart( p, s, min, max );
                 }
                 break;
                 case GraphInfo::PieChart :
                 {
-                        drawPieChart();
+                        drawPieChart( width(), height(), data->totalValue() );
                 }
         };
 }
 
-void Graph::drawBarChart()
+void Graph::drawBarChart( int width, int height, float max )
 {
-        //Find max value in GraphInfo->dataPoints() - make function in GraphInfo!!!
+        QPainter p( &graph );
+
+        // Try to set the font size smaller for text
+        QFont f = font();
+        f.setPointSize( 8 );
+        p.setFont( f );
+
+        int x = 0;
+        int i = 0;
+        int n = data->numberDataPoints();
+        QFontMetrics fm=fontMetrics();
+        int fh = fm.height();
+        int fw;
+
+        QColor c( 0, 0, 255);
+        p.setBrush( c );
+
+        for (DataPointInfo *dp = data->firstDataPoint(); dp; dp = data->nextDataPoint() )
+        {
+                int bw = ( width - width / 4 - x ) / ( n - i );
+                int bh = int( ( height - height / 4 - 1 ) * dp->value() / max );
+                p.drawRect( width / 8 + x, height - height / 8 - 1 - bh, bw, bh );
+                fw = fm.width( dp->label() );
+                p.drawText( width / 8 + x - fw / 2 + bw / 2, height - height / 8, fw,
+                                        fh + height / 8, AlignTop | AlignHCenter, dp->label() );
+        //                              WordBreak | AlignTop | AlignHCenter, dp->label() );
+                i++;
+                x += bw;
+        }
 }
 
-void Graph::drawLineChart()
+void Graph::drawLineChart( int width, int height, float max )
 {
 }
 
-void Graph::drawPieChart()
+void Graph::drawPieChart( int width, int height, float sum )
 {
+        QPainter p( &graph );
+
+        // Try to set the font size smaller for text
+        QFont f = font();
+        f.setPointSize( 8 );
+        p.setFont( f );
+
+        int n = data->numberDataPoints();
+
+        int apos = -90 * 16;
+
+        int xd = width - width / 5;
+        int yd = height - height / 5;
+
+        int i = 0;
+
+        QColor c;
+
+        for (DataPointInfo *dp = data->firstDataPoint(); dp; dp = data->nextDataPoint() )
+        {
+                c.setHsv( ( i *255) / n, 255, 255 );
+                p.setBrush( c );
+
+                int a = int( ( dp->value() * 360.0 ) / sum * 16.0 + 0.5 );
+                p.drawPie( width/10, height/10, xd, yd, -apos, -a );
+                apos += a;
+                i++;
+        }
+
+        double apos2 = -90 * 3.14159 / 180;
+        for (DataPointInfo *dp = data->firstDataPoint(); dp; dp = data->nextDataPoint() )
+        {
+                double a = dp->value() *360 / sum * 3.14159 / 180;
+                int x = int( cos( apos2 + a/2 ) * width * 5/16 + width/2 + 0.5 );
+                int y = int( sin( apos2 + a/2 ) * height * 5/16 + height/2 + 0.5 );
+                p.drawText( x - width/8, y - height/8, width/4, height/4, WordBreak | AlignCenter,
+                                        dp->label() );
+                apos2 += a;
+        }
 }
 
diff --git a/noncore/apps/checkbook/graph.h b/noncore/apps/checkbook/graph.h
index 7379be7..40b23cd 100644
--- a/noncore/apps/checkbook/graph.h
+++ b/noncore/apps/checkbook/graph.h
@@ -12,52 +12,53 @@
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This file 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 file;
   -_. . .   )=.  =           see the file COPYING. If not, write to the
     --        :-=`           Free Software Foundation, Inc.,
                              59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #ifndef GRAPH_H
 #define GRAPH_H
 
 #include <qpixmap.h>
 #include <qwidget.h>
 
 class GraphInfo;
+class QPainter;
 
 class Graph : public QWidget
 {
         Q_OBJECT
 
         public:
                 Graph( QWidget * = 0x0, GraphInfo * = 0x0, const QString & = 0x0, int = 0 );
 
                 void setGraphInfo( GraphInfo * );
 
                 void drawGraph( bool = FALSE );
-                
+
         protected:
                 void paintEvent( QPaintEvent * );
                 void resizeEvent( QResizeEvent * );
 
         private:
                 GraphInfo *data;
 
                 QPixmap graph;
 
                 void initGraph();
-                void drawBarChart();
-                void drawLineChart();
-                void drawPieChart();
+                void drawBarChart( int, int, float );
+                void drawLineChart( int, int, float );
+                void drawPieChart( int, int, float );
 };
 
 #endif
diff --git a/noncore/apps/checkbook/graphinfo.cpp b/noncore/apps/checkbook/graphinfo.cpp
index 7b06bdb..ec6a465 100644
--- a/noncore/apps/checkbook/graphinfo.cpp
+++ b/noncore/apps/checkbook/graphinfo.cpp
@@ -17,68 +17,107 @@
   _.=:.       :    :=>`:     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 file;
   -_. . .   )=.  =           see the file COPYING. If not, write to the
     --        :-=`           Free Software Foundation, Inc.,
                              59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #include "graphinfo.h"
 
 GraphInfo::GraphInfo( GraphType type, DataPointList *data, const QString &title,
                                           const QString &xtitle, const QString &ytitle )
 {
         t = type;
         d = data;
         gt = title;
         xt = xtitle;
         yt = ytitle;
 }
 
+GraphInfo::~GraphInfo()
+{
+        if ( d )
+        {
+                for ( DataPointInfo *data = d->first(); data; data = d->next() )
+                {
+                        delete data;
+                }
+        }
+}
+
 GraphInfo::GraphType GraphInfo::graphType()
 {
         return t;
 }
 
 void GraphInfo::setGraphType( GraphType type )
 {
         t = type;
 }
 
 DataPointList *GraphInfo::dataPoints()
 {
         return d;
 }
 
 void GraphInfo::setDataPoints( DataPointList *data )
 {
         d = data;
 }
 
-float GraphInfo::maxValue()
+DataPointInfo *GraphInfo::firstDataPoint()
 {
-        float max;
+        return( d->first() );
+}
 
+DataPointInfo *GraphInfo::nextDataPoint()
+{
+        return( d->next() );
+}
+
+int GraphInfo::numberDataPoints()
+{
+        return( d->count() );
+}
+
+float GraphInfo::maxValue()
+{
+        float max = 0.0;
+        for ( DataPointInfo *data = d->first(); data; data = d->next() )
+        {
+                if ( data->value() > max )
+                {
+                        max = data->value();
+                }
+        }
+        return max;
 }
 
-float GraphInfo::minValue()
+float GraphInfo::totalValue()
 {
+        float sum = 0.0;
+        for ( DataPointInfo *data = d->first(); data; data = d->next() )
+        {
+                sum += data->value();
+        }
+        return sum;
 }
 
 void GraphInfo::setGraphTitle( const QString &title )
 {
         gt = title;
 }
 
 void GraphInfo::setXAxisTitle( const QString &xtitle )
 {
         xt = xtitle;
 }
 
 void GraphInfo::setYAxisTitle( const QString &ytitle )
 {
         yt = ytitle;
 }
diff --git a/noncore/apps/checkbook/graphinfo.h b/noncore/apps/checkbook/graphinfo.h
index 4ad1dc9..620da74 100644
--- a/noncore/apps/checkbook/graphinfo.h
+++ b/noncore/apps/checkbook/graphinfo.h
@@ -21,62 +21,68 @@
  -.   .:....=;==+<;          General Public License along with this file;
   -_. . .   )=.  =           see the file COPYING. If not, write to the
     --        :-=`           Free Software Foundation, Inc.,
                              59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #ifndef GRAPHINFO_H
 #define GRAPHINFO_H
 
 #include <qlist.h>
 #include <qstringlist.h>
 
 class DataPointInfo
 {
         public:
                 DataPointInfo()
                         : l( 0x0 ), v( 0.0 ) {}
                 DataPointInfo( const QString &label, float value )
                         : l( label ), v( value ) {}
 
                 const QString &label() { return l; }
                 float          value() { return v; }
+                
+                void addToValue( float value ) { v += value; }
 
         private:
                 QString l;
                 float   v;
 };
 
 typedef QList<DataPointInfo> DataPointList;
 
 class GraphInfo
 {
         public:
                 enum GraphType { BarChart, LineChart, PieChart };
 
                 GraphInfo( GraphType = BarChart, DataPointList * = 0x0,
                                    const QString & = 0x0, const QString & = 0x0, const QString & = 0x0 );
+                ~GraphInfo();
 
                 GraphInfo::GraphType graphType();
                 void                 setGraphType( GraphType );
 
                 DataPointList *dataPoints();
                 void           setDataPoints( DataPointList * );
+                DataPointInfo *firstDataPoint();
+                DataPointInfo *nextDataPoint();
+                int            numberDataPoints();
 
                 float maxValue();
-                float minValue();
+                float totalValue();
 
                 void setGraphTitle( const QString & );
                 void setXAxisTitle( const QString & );
                 void setYAxisTitle( const QString & );
 
         private:
                 GraphType      t;
                 DataPointList *d;
                 QString        gt;
                 QString        xt;
                 QString        yt;
 };
 
 #endif