453 lines
11 KiB
C
453 lines
11 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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#include <FL/fl_draw.H>
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#include "Sequence_Widget.H"
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#include "Track.H"
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using namespace std;
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list <Sequence_Widget *> Sequence_Widget::_selection;
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Sequence_Widget * Sequence_Widget::_current = NULL;
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Sequence_Widget * Sequence_Widget::_pushed = NULL;
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Sequence_Widget * Sequence_Widget::_belowmouse = NULL;
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Fl_Color Sequence_Widget::_selection_color = FL_MAGENTA;
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Sequence_Widget::Sequence_Widget ( )
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{
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_sequence = NULL;
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_r = &_range;
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_r->start = _r->offset = _r->length = 0;
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_drag = NULL;
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_box_color = FL_BACKGROUND_COLOR;
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_color = FL_FOREGROUND_COLOR;
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}
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Sequence_Widget::~Sequence_Widget ( )
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{
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redraw();
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if ( this == _pushed )
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_pushed = NULL;
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if ( this == _belowmouse )
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_belowmouse = NULL;
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_sequence->remove( this );
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_selection.remove( this );
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}
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void
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Sequence_Widget::get ( Log_Entry &e ) const
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{
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e.add( ":start", _r->start );
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// e.add( ":offset", _r->offset );
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// e.add( ":length", _r->length );
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e.add( ":sequence", _sequence );
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e.add( ":selected", selected() );
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}
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void
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Sequence_Widget::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( s, ":start" ) )
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_r->start = atoll( v );
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// else if ( ! strcmp( s, ":offset" ) )
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// _r->offset = atoll( v );
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// else if ( ! strcmp( s, ":length" ) )
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// _r->length = atoll( v );
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else if ( ! strcmp( s, ":selected" ) )
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{
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if ( atoi( v ) )
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select();
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else
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deselect();
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}
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else if ( ! strcmp( s, ":sequence" ) )
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{
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int i;
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sscanf( v, "%X", &i );
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Sequence *t = (Sequence*)Loggable::find( i );
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assert( t );
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t->add( this );
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}
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// else
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// e.erase( i );
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}
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if ( _sequence )
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_sequence->redraw();
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}
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void
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Sequence_Widget::begin_drag ( const Drag &d )
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{
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_drag = new Drag( d );
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timeline->rdlock();
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_r = new Range( _range );
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timeline->unlock();
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}
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void
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Sequence_Widget::end_drag ( void )
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{
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timeline->wrlock();
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/* swap in the new value */
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_range = *_r;
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timeline->unlock();
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delete _r;
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_r = &_range;
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delete _drag;
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_drag = NULL;
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sequence()->handle_widget_change( _r->start, _r->length );
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}
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/** set position of widget on the timeline. */
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void
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Sequence_Widget::start ( nframes_t where )
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{
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/* this is pretty complicated because of selection and snapping */
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if ( ! selected() )
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{
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redraw();
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_r->start = where;
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}
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else
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{
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if ( this != Sequence_Widget::_current )
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return;
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long d = where - _r->start;
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if ( d < 0 )
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{
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/* first, make sure we stop at 0 */
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nframes_t m = (nframes_t)-1;
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for ( list <Sequence_Widget *>::iterator i = _selection.begin(); i != _selection.end(); ++i )
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m = min( m, (*i)->_r->start );
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d = 0 - d;
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if ( m <= (nframes_t)d )
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d = m;
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for ( list <Sequence_Widget *>::iterator i = _selection.begin(); i != _selection.end(); ++i )
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{
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(*i)->redraw();
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(*i)->_r->start -= d;
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}
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}
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else
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{
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/* TODO: do like the above and disallow wrapping */
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for ( list <Sequence_Widget *>::iterator i = _selection.begin(); i != _selection.end(); ++i )
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{
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(*i)->redraw();
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(*i)->_r->start += d;
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}
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}
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}
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}
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void
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Sequence_Widget::draw_label ( const char *label, Fl_Align align, Fl_Color color )
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{
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int X, Y;
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X = x();
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Y = y();
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/* FIXME: why do we have to do this here? why doesn't Fl_Label::draw take care of this stuff? */
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if ( ! (align & FL_ALIGN_INSIDE) )
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{
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if ( align & FL_ALIGN_RIGHT )
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{
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X += abs_w();
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align = (Fl_Align)((align & ~FL_ALIGN_RIGHT) | FL_ALIGN_LEFT);
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}
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if ( align & FL_ALIGN_BOTTOM )
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{
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Y += h();
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align = (Fl_Align)((align & ~FL_ALIGN_BOTTOM) | FL_ALIGN_TOP);
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}
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}
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Fl_Label lab;
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lab.color = color;
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// lab.type = FL_SHADOW_LABEL;
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lab.type = FL_NORMAL_LABEL;
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lab.value = label;
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lab.font = FL_HELVETICA;
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lab.size = 14;
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int lw = 0, lh = 0;
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fl_font( lab.font, lab.size );
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fl_measure( lab.value, lw, lh );
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int W = w();
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int H = h();
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if ( align & FL_ALIGN_INSIDE )
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{
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X += Fl::box_dx( box() );
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Y += Fl::box_dy( box() );
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W -= Fl::box_dw( box() );
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H -= Fl::box_dh( box() );
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}
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if ( align & FL_ALIGN_CLIP ) fl_push_clip( X, Y, W, H );
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int dx = 0;
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/* adjust for scrolling */
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if ( abs_x() < scroll_x() )
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dx = min( 32767, scroll_x() - abs_x() );
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// const Fl_Boxtype b = FL_ROUND_UP_BOX;
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const Fl_Boxtype b = FL_ROUNDED_BOX;
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const int bx = Fl::box_dx( b ) + 1;
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const int bw = Fl::box_dw( b ) + 1;
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if ( align & FL_ALIGN_BOTTOM )
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fl_draw_box( b, X - dx - bx, Y + H - lh, lw + bw, lh, FL_GRAY );
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else if ( align & FL_ALIGN_LEFT )
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fl_draw_box( b, X - dx, Y + ((H >> 1) - (lh >> 1)), lw + bw, lh, FL_GRAY );
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else if ( align & FL_ALIGN_TOP )
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fl_draw_box( b, X - dx - bx + ((W >> 1) - (lw >> 1)), Y + ((H >> 1) - (lh >> 1)), lw + bw, lh, FL_GRAY );
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// lab.draw( X - dx, Y, W, H, align );
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fl_color( color );
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fl_draw( label, ( X - dx ) + bx, Y, W, H, align );
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if ( align & FL_ALIGN_CLIP ) fl_pop_clip();
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}
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int
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Sequence_Widget::dispatch ( int m )
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{
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Sequence_Widget::_current = this;
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if ( selected() )
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{
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Loggable::block_start();
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int r = 0;
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for ( list <Sequence_Widget *>::iterator i = _selection.begin(); i != _selection.end(); i++ )
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if ( *i != this )
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r |= (*i)->handle( m );
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r |= handle( m );
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Loggable::block_end();
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return r;
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}
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else
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return handle( m );
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}
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void
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Sequence_Widget::draw ( void )
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{
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draw_box();
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}
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void
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Sequence_Widget::draw_box ( void )
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{
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fl_draw_box( box(), x(), y(), w(), h(), selected() ? FL_MAGENTA : _box_color );
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}
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#include "FL/test_press.H"
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/* base hanlde just does basic dragging */
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int
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Sequence_Widget::handle ( int m )
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{
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int X = Fl::event_x();
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int Y = Fl::event_y();
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Logger _log( this );
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switch ( m )
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{
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case FL_ENTER:
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fl_cursor( FL_CURSOR_HAND );
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return 1;
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case FL_LEAVE:
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// DMESSAGE( "leave" );
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fl_cursor( sequence()->cursor() );
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return 1;
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case FL_PUSH:
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{
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/* deletion */
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if ( test_press( FL_BUTTON3 + FL_CTRL ) )
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{
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redraw();
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sequence()->queue_delete( this );
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return 1;
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}
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else if ( test_press( FL_BUTTON1 ) || test_press( FL_BUTTON1 + FL_CTRL ) )
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{
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fl_cursor( FL_CURSOR_MOVE );
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/* movement drag */
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return 1;
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}
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return 0;
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}
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case FL_RELEASE:
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if ( _drag )
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{
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end_drag();
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_log.release();
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}
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fl_cursor( FL_CURSOR_HAND );
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return 1;
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case FL_DRAG:
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{
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Fl::event_key( 0 );
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if ( ! _drag )
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{
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begin_drag ( Drag( x() - X, y() - Y, x_to_offset( X ) ) );
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_log.hold();
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}
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if ( test_press( FL_BUTTON1 + FL_CTRL ) && ! _drag->state )
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{
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/* duplication */
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sequence()->add( this->clone() );
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_drag->state = 1;
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return 1;
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}
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else if ( test_press( FL_BUTTON1 ) || test_press( FL_BUTTON1 + FL_CTRL ) )
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{
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redraw();
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const nframes_t of = timeline->x_to_offset( X );
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if ( of >= _drag->start )
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start( of - _drag->start );
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else
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start( 0 );
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if ( Sequence_Widget::_current == this )
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sequence()->snap( this );
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if ( X >= sequence()->x() + sequence()->w() ||
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X <= sequence()->x() )
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{
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/* this drag needs to scroll */
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nframes_t pos = timeline->xoffset;
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nframes_t d = timeline->x_to_ts( 100 );
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if ( X <= sequence()->x() )
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{
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if ( pos > d )
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pos -= d;
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else
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pos = 0;
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}
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else
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pos += d;
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timeline->xposition( timeline->ts_to_x( pos ) );
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// timeline->update_length( start() + length() );
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/* FIXME: why isn't this enough? */
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// sequence()->redraw();
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timeline->redraw();
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}
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if ( ! selected() )
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{
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/* track jumping */
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if ( Y > y() + h() || Y < y() )
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{
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Track *t = timeline->track_under( Y );
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fl_cursor( (Fl_Cursor)1 );
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if ( t )
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t->handle( FL_ENTER );
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return 0;
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}
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}
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return 1;
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}
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else
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{
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DMESSAGE( "unknown" );
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return 0;
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}
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}
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default:
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return 0;
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}
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}
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