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non/Timeline/Sequence_Widget.C

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/*******************************************************************************/
/* 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. */
/*******************************************************************************/
/* TODO:
What if we solve the continuous-modification/sync issue by making a
copy of the 'pushed' widget, and operating on that instead (hiding
the original), then when the widget is released, copy its data into
the original?
*/
#include "Sequence_Widget.H"
list <Sequence_Widget *> Sequence_Widget::_selection;
Sequence_Widget * Sequence_Widget::_current = NULL;
Sequence_Widget * Sequence_Widget::_pushed = NULL;
Sequence_Widget * Sequence_Widget::_belowmouse = NULL;
Fl_Color Sequence_Widget::_selection_color = FL_MAGENTA;
void
Sequence_Widget::get ( Log_Entry &e ) const
{
e.add( ":start", _r->start );
// e.add( ":offset", _r->offset );
// e.add( ":length", _r->length );
e.add( ":sequence", _sequence );
e.add( ":selected", selected() );
}
void
Sequence_Widget::set ( Log_Entry &e )
{
for ( int i = 0; i < e.size(); ++i )
{
const char *s, *v;
e.get( i, &s, &v );
if ( ! strcmp( s, ":start" ) )
_r->start = atoll( v );
// else if ( ! strcmp( s, ":offset" ) )
// _r->offset = atoll( v );
// else if ( ! strcmp( s, ":length" ) )
// _r->length = atoll( v );
else if ( ! strcmp( s, ":selected" ) )
{
if ( atoi( v ) )
select();
else
deselect();
}
else if ( ! strcmp( s, ":sequence" ) )
{
int i;
sscanf( v, "%X", &i );
Sequence *t = (Sequence*)Loggable::find( i );
assert( t );
t->add( this );
}
// else
// e.erase( i );
}
if ( _sequence )
_sequence->redraw();
}
void
Sequence_Widget::draw_label ( const char *label, Fl_Align align, Fl_Color color )
{
int X, Y;
X = x();
Y = y();
/* FIXME: why do we have to to this here? why doesn't Fl_Lable::draw take care of this stuff? */
if ( ! (align & FL_ALIGN_INSIDE) )
{
if ( align & FL_ALIGN_RIGHT )
{
X += abs_w();
align = (Fl_Align)((align & ~FL_ALIGN_RIGHT) | FL_ALIGN_LEFT);
}
if ( align & FL_ALIGN_BOTTOM )
{
Y += h();
align = (Fl_Align)((align & ~FL_ALIGN_BOTTOM) | FL_ALIGN_TOP);
}
}
Fl_Label lab;
lab.color = color;
// lab.type = FL_SHADOW_LABEL;
lab.type = FL_NORMAL_LABEL;
lab.value = label;
lab.font = FL_HELVETICA;
lab.size = 14;
int lw = 0, lh = 0;
fl_font( lab.font, lab.size );
fl_measure( lab.value, lw, lh );
int W = w();
int H = h();
if ( align & FL_ALIGN_INSIDE )
{
X += Fl::box_dx( box() );
Y += Fl::box_dy( box() );
W -= Fl::box_dw( box() );
H -= Fl::box_dh( box() );
}
if ( align & FL_ALIGN_CLIP ) fl_push_clip( X, Y, W, H );
int dx = 0;
/* adjust for scrolling */
if ( abs_x() < scroll_x() )
dx = min( 32767, scroll_x() - abs_x() );
// const Fl_Boxtype b = FL_ROUND_UP_BOX;
const Fl_Boxtype b = FL_ROUNDED_BOX;
const int bx = Fl::box_dx( b ) + 1;
const int bw = Fl::box_dw( b ) + 1;
if ( align & FL_ALIGN_BOTTOM )
fl_draw_box( b, X - dx - bx, Y + H - lh, lw + bw, lh, FL_GRAY );
else if ( align == FL_ALIGN_LEFT )
fl_draw_box( b, X - dx, Y + ((H >> 1) - (lh >> 1)), lw + bw, lh, FL_GRAY );
else if ( align & FL_ALIGN_TOP )
fl_draw_box( b, X - dx - bx + ((W >> 1) - (lw >> 1)), Y + ((H >> 1) - (lh >> 1)), lw + bw, lh, FL_GRAY );
// lab.draw( X - dx, Y, W, H, align );
fl_color( color );
fl_draw( label, ( X - dx ) + bx, Y, W, H, align );
if ( align & FL_ALIGN_CLIP ) fl_pop_clip();
}
int
Sequence_Widget::dispatch ( int m )
{
Sequence_Widget::_current = this;
if ( selected() )
{
Loggable::block_start();
int r = 0;
for ( list <Sequence_Widget *>::iterator i = _selection.begin(); i != _selection.end(); i++ )
if ( *i != this )
r |= (*i)->handle( m );
r |= handle( m );
Loggable::block_end();
return r;
}
else
return handle( m );
}
/* base hanlde just does basic dragging */
int
Sequence_Widget::handle ( int m )
{
int X = Fl::event_x();
int Y = Fl::event_y();
Logger _log( this );
switch ( m )
{
case FL_ENTER:
fl_cursor( FL_CURSOR_HAND );
return 1;
case FL_LEAVE:
fl_cursor( sequence()->cursor() );
return 1;
case FL_PUSH:
{
/* deletion */
if ( Fl::event_state() & FL_CTRL &&
Fl::event_button3() )
{
redraw();
sequence()->queue_delete( this );
return 1;
}
else
if ( Fl::event_button1() )
return 1;
return 0;
}
case FL_RELEASE:
if ( _drag )
{
length_drag();
_log.release();
}
fl_cursor( FL_CURSOR_HAND );
return 1;
case FL_DRAG:
{
if ( ! _drag )
{
begin_drag ( Drag( x() - X, y() - Y, x_to_offset( X ) ) );
_log.hold();
}
fl_cursor( FL_CURSOR_MOVE );
redraw();
{
const nframes_t of = timeline->x_to_offset( X );
if ( of >= _drag->start )
{
_r->start = of - _drag->start;
if ( Sequence_Widget::_current == this )
sequence()->snap( this );
}
else
_r->start = 0;
}
if ( X >= sequence()->x() + sequence()->w() ||
X <= sequence()->x() )
{
/* this drag needs to scroll */
nframes_t pos = timeline->xoffset;
nframes_t d = timeline->x_to_ts( 100 );
if ( X <= sequence()->x() )
{
if ( pos > d )
pos -= d;
else
pos = 0;
}
else
pos += d;
timeline->xposition( timeline->ts_to_x( pos ) );
/* FIXME: why isn't this enough? */
// sequence()->redraw();
timeline->redraw();
}
return 1;
}
default:
return 0;
}
}
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