YQBusyIndicator.h

/*
  Copyright (C) 2000-2012 Novell, Inc
  This library is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation; either version 2.1 of the
  License, or (at your option) version 3.0 of the License. This library
  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 Lesser General Public
  License for more details. You should have received a copy of the GNU
  Lesser General Public License along with this library; if not, write
  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  Floor, Boston, MA 02110-1301 USA
*/


/*-/

  File:       YQBusyIndicator.h

  Author:     Thomas Goettlicher <tgoettlicher@suse.de>

/-*/


#ifndef YQBusyIndicator_h
#define YQBusyIndicator_h

#include <QFrame>
#include <QTimer>
#include <QLabel>
#include <yui/YBusyIndicator.h>


class QString;
class YQWidgetCaption;
class BusyBar;

class YQBusyIndicator : public QFrame, public YBusyIndicator
{
    Q_OBJECT

public:
    YQBusyIndicator( YWidget *      parent,
           const std::string &  label,
           int          timeout = 1000 );
    virtual ~YQBusyIndicator();

    virtual void setLabel( const std::string & label );

    virtual void setTimeout( int newTimeout  );

    int timeout()   const   { return _timeout;  }

    virtual void setAlive( bool newAlive );

    virtual void setEnabled( bool enabled );

    virtual int preferredWidth();

    virtual int preferredHeight();

    virtual void setSize( int newWidth, int newHeight );

    virtual bool setKeyboardFocus();

protected:

    YQWidgetCaption *   _caption;
    BusyBar *       _bar;
    QTimer *        _timer;
    int         _timeout;

private slots:
    void setStalled();

};





class BusyBar : public QFrame
{
    Q_OBJECT
public:
    BusyBar(QWidget * parent);


    void run();

    void stop();

protected:
    void paintEvent(QPaintEvent *event);

private:
    double  _position;      // the position of the bar
    bool    _rightwards;        // direction the bar moves
    QTimer *    _timer;
    bool    _alive;

private slots:
    void    update();

};


#endif // YQBusyIndicator_h