153 lines
4.4 KiB
C++
153 lines
4.4 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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/* Digital clock widget to show points on the timeline. May be
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switched between Bar Beat Tick and Wallclock displays */
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#include <FL/Fl_Widget.H>
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#include <FL/fl_draw.H>
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#include <FL/Fl.H>
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#include "Timeline.H"
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#include "types.h"
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const float CLOCK_UPDATE_FREQ = 0.05f;
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class Clock : public Fl_Widget
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{
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nframes_t _when;
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nframes_t *_v;
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static void
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update_cb ( void *v )
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{
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((Clock*)v)->update_cb();
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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( CLOCK_UPDATE_FREQ, update_cb, this );
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set( *_v );
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}
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public:
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enum { BBT, HMS };
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static void
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frame_to_HMS ( char *dst, int n, nframes_t frame )
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{
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float S = (double)frame / timeline->sample_rate();
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int M = S / 60; S -= M * 60;
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int H = M / 60; M -= H * 60;
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snprintf( dst, n, "%02d:%02d:%02.1f", H, M, S );
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}
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Clock ( int X, int Y, int W, int H, const char *L=0 )
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: Fl_Widget( X, Y, W, H, L )
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{
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_when = 0;
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_v = 0;
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box( FL_BORDER_BOX );
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type( HMS );
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/* force size */
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size( 170, 40 );
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}
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~Clock ( )
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{
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Fl::remove_timeout( update_cb );
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}
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void run ( nframes_t *v )
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{
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_v = v;
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Fl::add_timeout( CLOCK_UPDATE_FREQ, update_cb, this );
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}
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void set ( nframes_t frame )
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{
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if ( _when != frame )
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{
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_when = frame;
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redraw();
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}
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}
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void draw ( void )
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{
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draw_box();
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char buf[15];
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*buf = '\0';
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switch ( type() )
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{
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case HMS:
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frame_to_HMS( buf, sizeof( buf ), _when );
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break;
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case BBT:
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// frame_to_BBT( _buf, sizeof( buf ), frame );
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break;
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default:
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printf( "error: invalid clock type\n" );
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}
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fl_font( FL_COURIER, 24 );
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Fl_Color c = FL_GREEN;
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fl_color( c );
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const int dx = x() + Fl::box_dx( box() );
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const int dy = y() + Fl::box_dy( box() );
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const int dw = w() - Fl::box_dw( box() );
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const int dh = h() - Fl::box_dh( box() );
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fl_draw( buf, dx, dy, dw, dh - 9, FL_ALIGN_CENTER );
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for ( int i = strlen( buf ); i--; )
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if ( isdigit( buf[ i ] ) )
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buf[ i ] = ' ';
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fl_color( fl_darker( c ) );
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fl_draw( buf, dx, dy, dw, dh - 9, FL_ALIGN_CENTER );
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fl_font( FL_HELVETICA, 9 );
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fl_color( FL_RED );
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const char *s = type() == HMS ? "HMS" : "BBT";
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fl_draw( s, dx + 4, dy, dw, dh, (Fl_Align)( FL_ALIGN_LEFT | FL_ALIGN_BOTTOM ) );
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if ( label() )
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fl_draw( label(), dx, dy, dw, dh, (Fl_Align)( FL_ALIGN_RIGHT | FL_ALIGN_BOTTOM ) );
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}
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};
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