163 lines
4.5 KiB
C++
163 lines
4.5 KiB
C++
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/*******************************************************************************/
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/* Copyright (C) 2008 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* more details. */
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/* */
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/* You should have received a copy of the GNU General Public License along */
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/* with This program; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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#pragma once
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#include <FL/Fl_Button.H>
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#include <FL/Fl.H>
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/* Kind of like Fl_Light_Button except that the whole thing is the
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* indicator and it can optionally blink */
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class Fl_Blink_Button : public Fl_Button
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{
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bool _on;
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int _blink_interval;
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bool _blinking;
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bool _ignore_input;
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static void
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update_cb ( void *v )
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{
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((Fl_Blink_Button*)v)->update_cb();
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}
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float
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blink_interval_as_fraction_of_seceond ( void ) const
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{
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return (float)_blink_interval / 1000;
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}
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void
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update_cb ( void )
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{
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Fl::repeat_timeout( blink_interval_as_fraction_of_seceond(), update_cb, this );
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_on = ! _on;
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redraw();
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}
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public:
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enum
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{
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SLOW=500,
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MEDIUM=300,
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FAST=100,
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DEFAULT=500
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};
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Fl_Blink_Button ( int X, int Y, int W, int H, const char *L=0 )
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: Fl_Button( X, Y, W, H, L )
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{
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_blinking = true;
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_on = false;
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_ignore_input = false;
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_blink_interval = DEFAULT;
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type( FL_TOGGLE_BUTTON );
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}
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virtual
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~Fl_Blink_Button ()
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{
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if ( value() )
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Fl::remove_timeout( update_cb, this );
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}
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void ignore_input ( bool b )
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{
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_ignore_input = b;
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}
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bool ignore_input ( void ) const
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{
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return _ignore_input;
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}
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void blink ( bool b )
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{
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_blinking = b;
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if ( ! b )
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_on = true;
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}
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bool blink ( void ) const
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{
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return _blinking;
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}
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void
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blink_interval ( float v )
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{
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_blink_interval = v * 1000;
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if ( value() )
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{
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Fl::remove_timeout( update_cb, this );
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Fl::add_timeout( blink_interval_as_fraction_of_seceond(), update_cb, this );
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}
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}
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virtual void value ( float v )
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{
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bool b = v;
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if ( b != value() )
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{
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if ( b )
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{
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if ( _blinking )
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{
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/* just to be safe.. */
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Fl::remove_timeout( update_cb, this );
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Fl::add_timeout( blink_interval_as_fraction_of_seceond(), update_cb, this );
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}
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Fl_Button::value( b );
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redraw();
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}
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else
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{
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Fl_Button::value( b );
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Fl::remove_timeout( update_cb, this );
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redraw();
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}
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}
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}
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virtual float value ( void ) { return (bool)Fl_Button::value(); }
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virtual void
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draw ( void )
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{
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draw_box( value() ? box() : down_box(), x(), y(), w(), h(),
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( value() != 0 && _on ) ? selection_color() : color() );
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draw_label();
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}
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virtual int handle ( int m )
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{
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if ( _ignore_input )
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return 0;
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else
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return Fl_Button::handle( m );
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}
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};
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