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#ifndef HistogramWidget_h
#define HistogramWidget_h
/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This 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 software 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, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "Counter.h"
#include "Debug.h"
#include <QList>
#include <QResizeEvent>
#include <QScrollArea>
#include <QVector>
#include <QWidget>
//! drawing area
class HistogramWidget: public QWidget, public Counter
{
Q_OBJECT
public:
//! constructor
HistogramWidget( QScrollArea* );
//! visible height
void setVisibleHeight( const int& value )
{ visibleHeight_ = value; }
//! text
void setText( QString text )
{ text_ = text; }
//! handles foreground and fill color for histograms
class Color: public Counter
{
public:
//! constructor
Color( const QString& name ):
Counter( "HistogramWidget::Color" ),
name_( name ),
gradient_( 0, 0, 1, 0 ),
use_gradient_( false )
{
Debug::Throw( "HistogramWidget::Color::Color.\n" );
update();
}
//! update from options
void update( void );
//! update gradient
void updateGradient( const QSize& size );
//! foreground
const QColor& foreground( void ) const
{ return foreground_; }
//! background
QBrush background( void ) const
{ return (use_gradient_) ? QBrush( gradient_ ) : QBrush( background_ ); }
private:
//! name
QString name_;
//! foreground color
QColor foreground_;
//! background color
QColor background_;
//! background brush (with gradient)
QLinearGradient gradient_;
//! brush
bool use_gradient_;
};
//! dataset
class DataSet: public Counter
{
public:
//! dataset list
using List = QList<DataSet>;
//! values
using ValueList = QVector<double>;
//! constructor
DataSet( const QString& name = HistogramWidget::tr( "Generic Dataset" ), const QString& optionName = QString() ):
Counter( "HistogramWidget::DataSet" ),
name_( name ),
color_( optionName )
{ Debug::Throw( "HistogramWidget::DataSet::DataSet.\n" ); }
//! name
void setName( const QString& name )
{ name_ = name; }
//! name
const QString& name( void ) const
{ return name_; }
//! store values
void setValues( const ValueList& values )
{ values_ = values; }
//! get values
const ValueList& values( void ) const
{ return values_; }
//! get values
ValueList& values( void )
{ return values_; }
//! color
void setColor( const Color& color )
{ color_ = color; }
//! color
const Color& color( void ) const
{ return color_; }
//! color
Color& color( void )
{ return color_; }
private:
//! name
QString name_;
//! values
ValueList values_;
//! color
HistogramWidget::Color color_;
};
//! dataset
void clearDataSets();
//! dataset
void resetDataSets()
{ _dataSets().clear(); }
//! dataset
void addDataSet( const DataSet& dataset )
{ _dataSets() << dataset; }
//! get dataset
const DataSet& dataSet( int index ) const
{ return _dataSets()[index]; }
//! get dataset
DataSet& dataSet( int index )
{ return _dataSets()[index]; }
private Q_SLOTS:
//! update configuration
void _updateConfiguration();
protected:
//!@name event handlers
//@{
//! repaint
void paintEvent( QPaintEvent *e );
//! resize event [overloaded]
void resizeEvent( QResizeEvent* );
//@}
private:
//! parent scroll area
QScrollArea* parent_;
//! data sets
const DataSet::List& _dataSets( void ) const
{ return dataSets_; }
//! data sets
DataSet::List& _dataSets( void )
{ return dataSets_; }
//! paint text
void _paintText( QRect );
//! text
QString text_;
//! number of tick marks along x axis
unsigned int divX_;
//! number of tick marks along y axis
unsigned int divY_;
//! division color
Color divColor_;
//! visible height
int visibleHeight_;
//! data sets
DataSet::List dataSets_;
};
#endif
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