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tdegraphics/libkscan/sizeindicator.h

99 lines
2.6 KiB

/* This file is part of the KDE Project
Copyright (C) 2000 Klaas Freitag <freitag@suse.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef SIZEINDICATOR_H
#define SIZEINDICATOR_H
#define DEFAULT_CRITICAL (3*1024*1024)
#define DEFAULT_THRESHOLD (1*1024*1024)
class QPainter;
#include <qlabel.h>
/**
* @short small size indication widget for file sizes
* @author Klaas Freitag
*
* the size indicator is a small widget that displays a file size in a small
* frame. The unit (currently kB and MB) is selected automagically.
* If the file size grows bigger than the threshold set in the constructor,
* the widget starts to change its background color to visualise to the
* user that he is doing something obvious.
*/
class SizeIndicator: public QLabel
{
Q_OBJECT
// Q_PROPERTY( KGammaTable *gt READ getGt WRITE setGt )
public:
/**
* Creates a size indicator widget.
* @param thres: Threshold, value on that the widget starts to become red.
* @param crit: Critical value, not yet used.
*/
SizeIndicator( QWidget *parent, long thres = DEFAULT_THRESHOLD,
long crit = DEFAULT_CRITICAL );
/**
* destructor does not really do much yet.
*/
~SizeIndicator();
public slots:
/**
* is the slot that sets the file size to display. The widget gets
* updated.
* @param sizeInByte: the size to set.
*/
void setSizeInByte( long );
/**
* sets the critical size.
* @param crit: the critical value
*/
void setCritical( long );
/**
* sets the threshold value.
* @param thres: the threshold bytesize
*/
void setThreshold( long );
protected:
/**
* reimplemented to display the color
*/
virtual void drawContents( QPainter* );
private:
long sizeInByte;
long critical, threshold;
double devider;
class sizeIndicatorPrivate;
sizeIndicatorPrivate *d;
};
#endif