FLTK 1.3.0
Fl_Positioner.H
1 //
2 // "$Id: Fl_Positioner.H 7981 2010-12-08 23:53:04Z greg.ercolano $"
3 //
4 // Positioner header file for the Fast Light Tool Kit (FLTK).
5 //
6 // Copyright 1998-2010 by Bill Spitzak and others.
7 //
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.
12 //
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.
17 //
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
21 // USA.
22 //
23 // Please report all bugs and problems on the following page:
24 //
25 // http://www.fltk.org/str.php
26 //
27 
28 /* \file
29  Fl_Positioner widget . */
30 
31 #ifndef Fl_Positioner_H
32 #define Fl_Positioner_H
33 
34 #ifndef Fl_Widget_H
35 #include "Fl_Widget.H"
36 #endif
37 
46 class FL_EXPORT Fl_Positioner : public Fl_Widget {
47 
48  double xmin, ymin;
49  double xmax, ymax;
50  double xvalue_, yvalue_;
51  double xstep_, ystep_;
52 
53 protected:
54 
55  // these allow subclasses to put the dial in a smaller area:
56  void draw(int, int, int, int);
57  int handle(int, int, int, int, int);
58  void draw();
59 
60 public:
61 
62  int handle(int);
67  Fl_Positioner(int x,int y,int w,int h, const char *l=0);
69  double xvalue() const {return xvalue_;}
71  double yvalue() const {return yvalue_;}
72  int xvalue(double);
73  int yvalue(double);
74  int value(double,double);
75  void xbounds(double, double);
77  double xminimum() const {return xmin;}
79  void xminimum(double a) {xbounds(a,xmax);}
81  double xmaximum() const {return xmax;}
83  void xmaximum(double a) {xbounds(xmin,a);}
84  void ybounds(double, double);
86  double yminimum() const {return ymin;}
88  void yminimum(double a) {ybounds(a, ymax);}
90  double ymaximum() const {return ymax;}
92  void ymaximum(double a) {ybounds(ymin, a);}
94  void xstep(double a) {xstep_ = a;}
96  void ystep(double a) {ystep_ = a;}
97 };
98 
99 #endif
100 
101 //
102 // End of "$Id: Fl_Positioner.H 7981 2010-12-08 23:53:04Z greg.ercolano $".
103 //
Fl_Widget is the base class for all widgets in FLTK.
Definition: Fl_Widget.H:109
void xstep(double a)
Sets the stepping value for the X axis.
Definition: Fl_Positioner.H:94
virtual int handle(int event)
Handles the specified event.
Definition: Fl_Widget.cxx:106
double xmaximum() const
Gets the X axis maximum.
Definition: Fl_Positioner.H:81
virtual void draw()=0
Draws the widget.
double xvalue() const
Gets the X axis coordinate.
Definition: Fl_Positioner.H:69
double yminimum() const
Gets the Y axis minimum.
Definition: Fl_Positioner.H:86
void ymaximum(double a)
Same as ybounds(ymininimum(), a)
Definition: Fl_Positioner.H:92
void yminimum(double a)
Same as ybounds(a, ymaximum())
Definition: Fl_Positioner.H:88
double xminimum() const
Gets the X axis minimum.
Definition: Fl_Positioner.H:77
Fl_Widget, Fl_Label classes .
This class is provided for Forms compatibility.
Definition: Fl_Positioner.H:46
double ymaximum() const
Gets the Y axis maximum.
Definition: Fl_Positioner.H:90
void xminimum(double a)
Same as xbounds(a, xmaximum())
Definition: Fl_Positioner.H:79
double yvalue() const
Gets the Y axis coordinate.
Definition: Fl_Positioner.H:71
void xmaximum(double a)
Same as xbounds(xminimum(), a)
Definition: Fl_Positioner.H:83
void ystep(double a)
Sets the stepping value for the Y axis.
Definition: Fl_Positioner.H:96