//// "$Id$"//// Spinner widget for the Fast Light Tool Kit (FLTK).//// Copyright 1998-2005 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//#ifndef Fl_Spinner_H#  define Fl_Spinner_H//// Include necessary headers...//#  include <FL/Fl_Group.H>#  include <FL/Fl_Input.H>#  include <FL/Fl_Repeat_Button.H>#  include <stdio.h>#  include <stdlib.h>//// Fl_Spinner widget class...//class Fl_Spinner : public Fl_Group{  double	value_;			// Current value  double	minimum_;		// Minimum value  double	maximum_;		// Maximum value  double	step_;			// Amount to add/subtract for up/down  const char	*format_;		// Format string  Fl_Input	input_;			// Input field for the value  Fl_Repeat_Button		up_button_,		// Up button		down_button_;		// Down button  static void	sb_cb(Fl_Widget *w, Fl_Spinner *sb) {		  double v;		// New value		  if (w == &(sb->input_)) {		    // Something changed in the input field...		    v = atof(sb->input_.value());		    if (v < sb->minimum_) {		      sb->value_ = sb->minimum_;		      sb->update();		    } else if (v > sb->maximum_) {		      sb->value_ = sb->maximum_;		      sb->update();		    } else sb->value_ = v;		  } else if (w == &(sb->up_button_)) {		    // Up button pressed...		    v = sb->value_ + sb->step_;		    if (v > sb->maximum_) sb->value_ = sb->minimum_;		    else sb->value_ = v;		    sb->update();		  } else if (w == &(sb->down_button_)) {		    // Down button pressed...		    v = sb->value_ - sb->step_;		    if (v < sb->minimum_) sb->value_ = sb->maximum_;		    else sb->value_ = v;		    sb->update();		  }		  sb->do_callback();		}  void		update() {		  char s[255];		// Value string		  sprintf(s, format_, value_);		  input_.value(s);		}  public:		Fl_Spinner(int X, int Y, int W, int H, const char *L = 0)		  : Fl_Group(X, Y, W, H, L),		    input_(X, Y, W - H / 2 - 2, H),		    up_button_(X + W - H / 2 - 2, Y, H / 2 + 2, H / 2, "@-22<"),		    down_button_(X + W - H / 2 - 2, Y + H - H / 2,		                 H / 2 + 2, H / 2, "@-22>") {		  end();		  value_   = 1.0;		  minimum_ = 1.0;		  maximum_ = 100.0;		  step_    = 1.0;		  format_  = "%.0f";		  align(FL_ALIGN_LEFT);		  input_.value("1");		  input_.type(FL_INT_INPUT);		  input_.when(FL_WHEN_CHANGED);		  input_.callback((Fl_Callback *)sb_cb, this);		  up_button_.callback((Fl_Callback *)sb_cb, this);		  down_button_.callback((Fl_Callback *)sb_cb, this);		}  const char	*format() { return (format_); }  void		format(const char *f) { format_ = f; update(); }  double	maxinum() const { return (maximum_); }  void		maximum(double m) { maximum_ = m; }  double	mininum() const { return (minimum_); }  void		minimum(double m) { minimum_ = m; }  void		range(double a, double b) { minimum_ = a; maximum_ = b; }  void		resize(int X, int Y, int W, int H) {		  Fl_Group::resize(X,Y,W,H);		  input_.resize(X, Y, W - H / 2 - 2, H);		  up_button_.resize(X + W - H / 2 - 2, Y, H / 2 + 2, H / 2);		  down_button_.resize(X + W - H / 2 - 2, Y + H - H / 2,		                      H / 2 + 2, H / 2);		}  double	step() const { return (step_); }  void		step(double s) { step_ = s; }  Fl_Color	textcolor() const {		  return (input_.textcolor());		}  void		textcolor(Fl_Color c) {		  input_.textcolor(c);		}  uchar		textfont() const {		  return (input_.textfont());		}  void		textfont(uchar f) {		  input_.textfont(f);		}  uchar		textsize() const {		  return (input_.textsize());		}  void		textsize(uchar s) {		  input_.textsize(s);		}  double	value() const { return (value_); }  void		value(double v) { value_ = v; update(); }};#endif // !Fl_Spinner_H//// End of "$Id$".//