FLTK 1.3.0
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00001 // 00002 // "$Id: Fl_Positioner.H 7981 2010-12-08 23:53:04Z greg.ercolano $" 00003 // 00004 // Positioner header file for the Fast Light Tool Kit (FLTK). 00005 // 00006 // Copyright 1998-2010 by Bill Spitzak and others. 00007 // 00008 // This library is free software; you can redistribute it and/or 00009 // modify it under the terms of the GNU Library General Public 00010 // License as published by the Free Software Foundation; either 00011 // version 2 of the License, or (at your option) any later version. 00012 // 00013 // This library is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 // Library General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU Library General Public 00019 // License along with this library; if not, write to the Free Software 00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00021 // USA. 00022 // 00023 // Please report all bugs and problems on the following page: 00024 // 00025 // http://www.fltk.org/str.php 00026 // 00027 00028 /* \file 00029 Fl_Positioner widget . */ 00030 00031 #ifndef Fl_Positioner_H 00032 #define Fl_Positioner_H 00033 00034 #ifndef Fl_Widget_H 00035 #include "Fl_Widget.H" 00036 #endif 00037 00046 class FL_EXPORT Fl_Positioner : public Fl_Widget { 00047 00048 double xmin, ymin; 00049 double xmax, ymax; 00050 double xvalue_, yvalue_; 00051 double xstep_, ystep_; 00052 00053 protected: 00054 00055 // these allow subclasses to put the dial in a smaller area: 00056 void draw(int, int, int, int); 00057 int handle(int, int, int, int, int); 00058 void draw(); 00059 00060 public: 00061 00062 int handle(int); 00067 Fl_Positioner(int x,int y,int w,int h, const char *l=0); 00069 double xvalue() const {return xvalue_;} 00071 double yvalue() const {return yvalue_;} 00072 int xvalue(double); 00073 int yvalue(double); 00074 int value(double,double); 00075 void xbounds(double, double); 00077 double xminimum() const {return xmin;} 00079 void xminimum(double a) {xbounds(a,xmax);} 00081 double xmaximum() const {return xmax;} 00083 void xmaximum(double a) {xbounds(xmin,a);} 00084 void ybounds(double, double); 00086 double yminimum() const {return ymin;} 00088 void yminimum(double a) {ybounds(a, ymax);} 00090 double ymaximum() const {return ymax;} 00092 void ymaximum(double a) {ybounds(ymin, a);} 00094 void xstep(double a) {xstep_ = a;} 00096 void ystep(double a) {ystep_ = a;} 00097 }; 00098 00099 #endif 00100 00101 // 00102 // End of "$Id: Fl_Positioner.H 7981 2010-12-08 23:53:04Z greg.ercolano $". 00103 //