non/FL/Fl_Blinker.H

105 lines
3.2 KiB
C++

/*******************************************************************************/
/* Copyright (C) 2008 Jonathan Moore Liles */
/* */
/* This program is free software; you can redistribute it and/or modify it */
/* under the terms of the GNU General Public License as published by the */
/* Free Software Foundation; either version 2 of the License, or (at your */
/* option) any later version. */
/* */
/* This program 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 General Public License for */
/* more details. */
/* */
/* You should have received a copy of the GNU General Public License along */
/* with This program; see the file COPYING. If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#include <FL/Fl_Button.H>
#include <FL/Fl.H>
class Fl_Blinker : public Fl_Button
{
bool _on;
float _blink_interval;
static void
update_cb ( void *v )
{
((Fl_Blinker*)v)->update_cb();
}
void
update_cb ( void )
{
Fl::repeat_timeout( _blink_interval, update_cb, this );
_on = ! _on;
redraw();
}
public:
static const float SLOW = 0.5f;
static const float MEDIUM = 0.3f;
static const float FAST = 0.1f;
static const float DEFAULT = 0.5f;
Fl_Blinker ( int X, int Y, int W, int H, const char *L )
: Fl_Button( X, Y, W, H, L )
{
_on = false;
_blink_interval = DEFAULT;
type( FL_TOGGLE_BUTTON );
}
virtual
~Fl_Blinker ()
{
if ( value() )
Fl::remove_timeout( update_cb, this );
}
void
interval ( float v )
{
_blink_interval = v;
if ( value() )
{
Fl::remove_timeout( update_cb, this );
Fl::add_timeout( _blink_interval, update_cb, this );
}
}
virtual void value ( float v )
{
if ( v )
{
Fl::add_timeout( _blink_interval, update_cb, this );
Fl_Button::value( v );
redraw();
}
else
{
Fl_Button::value( v );
Fl::remove_timeout( update_cb, this );
redraw();
}
}
virtual float value ( void ) { return Fl_Button::value(); }
virtual void
draw ( void )
{
draw_box( value() ? box() : down_box(), x(), y(), w(), h(), ( value() != 0 && _on ) ? selection_color() : color() );
draw_label();
}
};