2 // "$Id: Fl_Slider.H 7981 2010-12-08 23:53:04Z greg.ercolano $"
4 // Slider header file for the Fast Light Tool Kit (FLTK).
6 // Copyright 1998-2010 by Bill Spitzak and others.
8 // This library is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU Library General Public
10 // License as published by the Free Software Foundation; either
11 // version 2 of the License, or (at your option) any later version.
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // Library General Public License for more details.
18 // You should have received a copy of the GNU Library General Public
19 // License along with this library; if not, write to the Free Software
20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 // Please report all bugs and problems on the following page:
25 // http://www.fltk.org/str.php
35 #include "Fl_Valuator.H"
38 // values for type(), lowest bit indicate horizontal:
39 #define FL_VERT_SLIDER 0
40 #define FL_HOR_SLIDER 1
41 #define FL_VERT_FILL_SLIDER 2
42 #define FL_HOR_FILL_SLIDER 3
43 #define FL_VERT_NICE_SLIDER 4
44 #define FL_HOR_NICE_SLIDER 5
47 The Fl_Slider widget contains a sliding knob inside a box. It if
48 often used as a scrollbar. Moving the box all the way to the
49 top/left sets it to the minimum(), and to the bottom/right to the
50 maximum(). The minimum() may be greater than the maximum() to
51 reverse the slider direction.
53 Use void Fl_Widget::type(int) to set how the slider is drawn,
54 which can be one of the following:
56 \li FL_VERTICAL - Draws a vertical slider (this is the default).
57 \li FL_HORIZONTAL - Draws a horizontal slider.
58 \li FL_VERT_FILL_SLIDER - Draws a filled vertical slider,
59 useful as a progress or value meter.
60 \li FL_HOR_FILL_SLIDER - Draws a filled horizontal slider,
61 useful as a progress or value meter.
62 \li FL_VERT_NICE_SLIDER - Draws a vertical slider with a nice
64 \li FL_HOR_NICE_SLIDER - Draws a horizontal slider with a
65 nice looking control knob.
67 \image html slider.png
68 \image latex slider.png "Fl_Slider" width=4cm
70 class FL_EXPORT Fl_Slider : public Fl_Valuator {
75 void draw_bg(int, int, int, int);
79 // these allow subclasses to put the slider in a smaller area:
80 void draw(int, int, int, int);
81 int handle(int, int, int, int, int);
87 Fl_Slider(int X,int Y,int W,int H, const char *L = 0);
88 Fl_Slider(uchar t,int X,int Y,int W,int H, const char *L);
90 int scrollvalue(int pos,int size,int first,int total);
91 void bounds(double a, double b);
94 Get the dimensions of the moving piece of slider.
96 float slider_size() const {return slider_size_;}
99 Set the dimensions of the moving piece of slider. This is
100 the fraction of the size of the entire widget. If you set this
101 to 1 then the slider cannot move. The default value is .08.
103 For the "fill" sliders this is the size of the area around the
104 end that causes a drag effect rather than causing the slider to
107 void slider_size(double v);
109 /** Gets the slider box type. */
110 Fl_Boxtype slider() const {return (Fl_Boxtype)slider_;}
112 /** Sets the slider box type. */
113 void slider(Fl_Boxtype c) {slider_ = c;}
119 // End of "$Id: Fl_Slider.H 7981 2010-12-08 23:53:04Z greg.ercolano $".