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//
// "$Id$"
//
// Slider header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2008 by Bill Spitzak and others.
//
// 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; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
/** \file
Fl_Slider widget . */
#ifndef Fl_Slider_H
#define Fl_Slider_H
#ifndef Fl_Valuator_H
#include "Fl_Valuator.H"
#endif
// values for type(), lowest bit indicate horizontal:
#define FL_VERT_SLIDER 0
#define FL_HOR_SLIDER 1
#define FL_VERT_FILL_SLIDER 2
#define FL_HOR_FILL_SLIDER 3
#define FL_VERT_NICE_SLIDER 4
#define FL_HOR_NICE_SLIDER 5
/**
The Fl_Slider widget contains a sliding knob inside a box. It
if often used as a scrollbar. Moving the box all the way to the
top/left sets it to the minimum(), and to the bottom/right to
the maximum(). The minimum() may be greater than the
maximum() to reverse the slider direction.
<P>Use void Fl_Widget::type(int) to set how the slider is drawn,
which can be one of the following:
<UL>
<LI>FL_VERTICAL - Draws a vertical slider (this is the
default). </LI>
<LI>FL_HORIZONTAL - Draws a horizontal slider. </LI>
<LI>FL_VERT_FILL_SLIDER - Draws a filled vertical slider,
useful as a progress or value meter. </LI>
<LI>FL_HOR_FILL_SLIDER - Draws a filled horizontal slider,
useful as a progress or value meter. </LI>
<LI>FL_VERT_NICE_SLIDER - Draws a vertical slider with a nice
looking control knob. </LI>
<LI>FL_HOR_NICE_SLIDER - Draws a horizontal slider with a
nice looking control knob. </LI>
</UL>
<P ALIGN=CENTER>\image html slider.gif
\image latex slider.eps "Fl_Slider" width=4cm
*/
class FL_EXPORT Fl_Slider : public Fl_Valuator {
float slider_size_;
uchar slider_;
void _Fl_Slider();
void draw_bg(int, int, int, int);
protected:
// these allow subclasses to put the slider in a smaller area:
void draw(int, int, int, int);
int handle(int, int, int, int, int);
public:
void draw();
int handle(int);
Fl_Slider(int x,int y,int w,int h, const char *l = 0);
Fl_Slider(uchar t,int x,int y,int w,int h, const char *l);
int scrollvalue(int windowtop,int windowsize,int first,int totalsize);
void bounds(double a, double b);
/**
Get or set the dimensions of the moving piece of slider. This is the
fraction of the size of the entire widget. If you set this to 1 then
the slider cannot move. The default value is .08.
<P>For the "fill" sliders this is the size of the area around the end
that causes a drag effect rather than causing the slider to jump to the
mouse.
*/
float slider_size() const {return slider_size_;}
/** See float slider_size() const */
void slider_size(double v);
/** Gets the slider box type. */
Fl_Boxtype slider() const {return (Fl_Boxtype)slider_;}
/** Sets the slider box type. */
void slider(Fl_Boxtype c) {slider_ = c;}
};
#endif
//
// End of "$Id$".
//
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