/data/gitorious.org/libyui/libyui-master/src/YBarGraph.h

/**************************************************************************
Copyright (C) 2000 - 2010 Novell, Inc.
All Rights Reserved.

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.

**************************************************************************/


/*---------------------------------------------------------------------\
|                                                                      |
|                      __   __    ____ _____ ____                      |
|                      \ \ / /_ _/ ___|_   _|___ \                     |
|                       \ V / _` \___ \ | |   __) |                    |
|                        | | (_| |___) || |  / __/                     |
|                        |_|\__,_|____/ |_| |_____|                    |
|                                                                      |
|                               core system                            |
|                                                        (C) SuSE GmbH |
\----------------------------------------------------------------------/

  File:         YBarGraph.h

  Author:       Stefan Hundhammer <sh@suse.de>

/-*/

#ifndef YBarGraph_h
#define YBarGraph_h

#include "YWidget.h"
#include "YColor.h"


class YBarGraphPrivate;
class YBarGraphSegment;


class YBarGraph : public YWidget
{
    friend class YBarGraphMultiUpdate;

protected:
    YBarGraph( YWidget * parent );

public:
    virtual ~YBarGraph();

    virtual const char * widgetClass() const { return "YBarGraph"; }

    void addSegment( const YBarGraphSegment & segment );

    void deleteAllSegments();

    int segments();

    const YBarGraphSegment & segment( int segmentIndex ) const;

    void setValue( int segmentIndex, int newValue );

    void setLabel( int segmentIndex, const string & newLabel );

    void setSegmentColor( int segmentIndex, const YColor & color );

    void setTextColor( int segmentIndex, const YColor & color );

    virtual bool setProperty( const string & propertyName,
                              const YPropertyValue & val );

    virtual YPropertyValue getProperty( const string & propertyName );

    virtual const YPropertySet & propertySet();


protected:
    virtual void doUpdate() = 0;


private:
    void updateDisplay();

    ImplPtr<YBarGraphPrivate> priv;
};




class YBarGraphSegment
{
public:
    YBarGraphSegment( int               value           = 0,
                      const string &    label           = string(),
                      const YColor &    segmentColor    = YColor(),
                      const YColor &    textColor       = YColor() )
        : _value( value )
        , _label( label )
        , _segmentColor( segmentColor )
        , _textColor( textColor )
        {}

    int value() const { return _value; }

    void setValue( int newValue ) { _value = newValue; }

    string label() const { return _label; }

    void setLabel( const string & newLabel ) { _label = newLabel; }

    YColor segmentColor() const { return _segmentColor; }

    bool hasSegmentColor() const { return _segmentColor.isDefined(); }

    void setSegmentColor( const YColor & color ) { _segmentColor = color; }

    YColor textColor() const { return _textColor; }

    bool hasTextColor() const { return _textColor.isDefined(); }

    void setTextColor( const YColor & color ) { _textColor = color; }


private:

    int         _value;
    string      _label;
    YColor      _segmentColor;
    YColor      _textColor;
};



class YBarGraphMultiUpdate
{
public:
    YBarGraphMultiUpdate( YBarGraph * barGraph );

    ~YBarGraphMultiUpdate();

private:

    YBarGraph * _barGraph;
};


#endif // YBarGraph_h