354 lines
8.4 KiB
C
354 lines
8.4 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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/* An Audio_Sequence is a sequence of Audio_Regions. Takes and 'track
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* contents' consist of these objects */
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#include "debug.h"
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#include <sys/time.h>
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#include <FL/fl_ask.H>
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#include <FL/Fl.H>
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#include "Audio_Sequence.H"
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#include "Waveform.H"
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#include <list>
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using namespace std;
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#include "Track.H"
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#include "Engine/Audio_File.H" // for ::from_file()
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#include "Transport.H" // for locate()
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#include <errno.h>
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Audio_Sequence::Audio_Sequence ( Track *track, const char *name ) : Sequence( track )
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{
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_track = track;
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if ( name )
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Audio_Sequence::name( name );
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else
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{
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struct timeval tv;
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gettimeofday( &tv, NULL );
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time_t t = tv.tv_sec;
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char s[40];
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ctime_r( &t, s );
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s[ strlen( s ) - 1 ] = 0;
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Audio_Sequence::name( s );
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}
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if ( track )
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track->add( this );
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log_create();
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/* FIXME: temporary */
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labeltype( FL_NO_LABEL );
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}
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Audio_Sequence::~Audio_Sequence ( )
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{
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Loggable::block_start();
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clear();
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log_destroy();
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track()->remove( this );
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Loggable::block_end();
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}
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/** return a pointer to the current capture region for this sequence */
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const Audio_Region *
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Audio_Sequence::capture_region ( void ) const
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{
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return track()->capture_region();
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}
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void
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Audio_Sequence::get ( Log_Entry &e ) const
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{
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e.add( ":track", _track );
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e.add( ":name", name() );
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}
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void
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Audio_Sequence::set ( Log_Entry &e )
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{
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for ( int i = 0; i < e.size(); ++i )
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{
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const char *s, *v;
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e.get( i, &s, &v );
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if ( ! strcmp( ":track", s ) )
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{
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int i;
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sscanf( v, "%X", &i );
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Track *t = (Track*)Loggable::find( i );
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assert( t );
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t->sequence( this );
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}
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else if ( ! strcmp( ":name", s ) )
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name( v );
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}
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}
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static
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void
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deurlify ( char *url )
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{
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char *r, *w;
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r = w = url;
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for ( ; *r; r++, w++ )
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{
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if ( *r == '%' )
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{
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char data[3] = { *(r + 1), *(r + 2), 0 };
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int c;
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sscanf( data, "%2X", &c );
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*w = c;
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r += 2;
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}
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else
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*w = *r;
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}
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*w = 0;
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}
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void
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Audio_Sequence::handle_widget_change ( nframes_t start, nframes_t length )
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{
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Sequence::handle_widget_change( start, length );
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/* a region has changed. we may need to rebuffer... */
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/* trigger rebuffer */
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/* FIXME: we really only need to rebuffer *this* sequence! */
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/* FIXME: how does this fit into the selection? */
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if ( transport->rolling && ( start > transport->frame || start + length > transport->frame ) )
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transport->locate( transport->frame );
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}
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void
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Audio_Sequence::draw ( void )
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{
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Sequence::draw();
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int xfades = 0;
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/* draw crossfades */
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for ( list <Sequence_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
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{
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Sequence_Widget *o = overlaps( *r );
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if ( o )
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{
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if ( *o <= **r )
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{
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/* if ( o->x() == (*r)->x() && o->w() == (*r)->w() ) */
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/* printf( "complete superposition\n" ); */
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if ( o->contains( *r ) )
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/* completely inside */
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continue;
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++xfades;
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Rectangle b( (*r)->x(),
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o->y(),
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(o->x() + o->w()) - (*r)->x(),
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o->h() );
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/* Fl_Color c = fl_color_average( o->color(), (*r)->color(), 0.50f ); */
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/* c = fl_color_average( c, FL_YELLOW, 0.30f ); */
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/* Fl_Color c = fl_color_add_alpha( FL_YELLOW, 50 ); */
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Fl_Color c = FL_YELLOW;
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/* fl_push_use_cairo( true ); */
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fl_push_clip( b.x, b.y, b.w, b.h );
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draw_box( FL_FLAT_BOX, b.x - 100, b.y, b.w + 200, b.h, c );
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draw_box( FL_UP_FRAME, b.x - 100, b.y, b.w + 200, b.h, c );
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fl_pop_clip();
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/* fl_pop_use_cairo(); */
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}
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}
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}
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for ( list <Sequence_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
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{
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Sequence_Widget *o = overlaps( *r );
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if ( o )
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{
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if ( *o <= **r )
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{
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if ( o->contains( *r ) )
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/* completely inside */
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continue;
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Rectangle b( (*r)->x(), o->y(), (o->x() + o->w()) - (*r)->x(), o->h() );
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/* draw overlapping waveforms in X-ray style. */
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/* bool t = Waveform::fill; */
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/* Waveform::fill = false; */
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fl_push_clip( b.x, b.y, b.w, b.h );
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o->draw();
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(*r)->draw();
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fl_pop_clip();
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/* Waveform::fill = t; */
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}
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}
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}
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}
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/** event handler that supports DND of audio clips */
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int
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Audio_Sequence::handle ( int m )
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{
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switch ( m )
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{
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case FL_PASTE:
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{
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const char *text = Fl::event_text();
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if ( ! strcmp( text, "Audio_Region" ) )
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return 1;
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char *file;
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if ( ! sscanf( text, "file://%a[^\r\n]\n", &file ) )
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{
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printf( "invalid drop \"%s\"\n", text );
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return 0;
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}
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deurlify( file );
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printf( "pasted file \"%s\"\n", file );
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fl_cursor( FL_CURSOR_WAIT );
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Fl::check();
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char *t = strdup( file );
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char *filebase = strdup( basename( t ) );
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free( t );
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char *s = 0;
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int i = 0;
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for ( ; ; i++ )
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{
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if ( i )
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{
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free( s );
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asprintf( &s, "sources/%s-%i", filebase, i );
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}
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else
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asprintf( &s, "sources/%s", filebase );
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DMESSAGE( "Symlink %s -> %s", file, s );
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if ( symlink( file, s ) == 0 )
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break;
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if ( errno != EEXIST )
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{
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WARNING( "Failed to create symlink: %s", strerror( errno ) );
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break;
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}
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}
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Audio_File *c = Audio_File::from_file( basename( s ) );
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free( s );
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free( filebase );
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fl_cursor( FL_CURSOR_DEFAULT );
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Fl::check();
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if ( ! c || c->dummy() )
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{
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fl_alert( "Could not import file \"%s\"", file );
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free( file );
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if ( c )
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{
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delete c;
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c = NULL;
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}
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return 0;
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}
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free( file );
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// Audio_Region *r =
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new Audio_Region( c, this, timeline->xoffset + timeline->x_to_ts( Fl::event_x() - x() ) );
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redraw();
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return 1;
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}
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default:
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return Sequence::handle( m );
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}
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}
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