src/Fl_Repeat_Button.cxx

   1 //
   2 // "$Id: Fl_Repeat_Button.cxx 7903 2010-11-28 21:06:39Z matt $"
   3 //
   4 // Repeat button widget 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 #include <FL/Fl.H>
  29 #include <FL/Fl_Repeat_Button.H>
  30
  31 #define INITIALREPEAT .5
  32 #define REPEAT .1
  33
  34 void Fl_Repeat_Button::repeat_callback(void *v) {
  35   Fl_Button *b = (Fl_Button*)v;
  36   Fl::add_timeout(REPEAT,repeat_callback,b);
  37   b->do_callback();
  38 }
  39
  40 int Fl_Repeat_Button::handle(int event) {
  41   int newval;
  42   switch (event) {
  43   case FL_HIDE:
  44   case FL_DEACTIVATE:
  45   case FL_RELEASE:
  46     newval = 0; goto J1;
  47   case FL_PUSH:
  48   case FL_DRAG:
  49     if (Fl::visible_focus()) Fl::focus(this);
  50     newval = Fl::event_inside(this);
  51   J1:
  52     if (!active())
  53       newval = 0;
  54     if (value(newval)) {
  55       if (newval) {
  56         Fl::add_timeout(INITIALREPEAT,repeat_callback,this);
  57         do_callback();
  58       } else {
  59         Fl::remove_timeout(repeat_callback,this);
  60       }
  61     }
  62     return 1;
  63   default:
  64     return Fl_Button::handle(event);
  65   }
  66 }
  67
  68 //
  69 // End of "$Id: Fl_Repeat_Button.cxx 7903 2010-11-28 21:06:39Z matt $".
  70 //