non/Timeline/Sequence_Widget.C

236 lines
6.4 KiB
C

/*******************************************************************************/
/* 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;
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 += 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_ENGRAVED_LABEL;
lab.value = label;
lab.font = FL_HELVETICA;
lab.size = 14;
int lw, lh;
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;
if ( abs_x() < scroll_x() )
dx = min( 32767, scroll_x() - abs_x() );
{
const Fl_Boxtype b = FL_ROUND_UP_BOX;
const int bx = Fl::box_dx( b );
const int bw = Fl::box_dw( b );
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, lw + bw, lh, FL_GRAY );
else
fl_draw_box( b, X - dx - bx + ((W / 2) - (lw / 2)), Y + ((H / 2) - (lh / 2)), lw + bw, lh, FL_GRAY );
}
lab.draw( X - dx, 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( FL_CURSOR_DEFAULT );
return 1;
case FL_PUSH:
{
/* deletion */
if ( Fl::event_state() & FL_CTRL &&
Fl::event_button3() )
{
redraw();
_track->queue_delete( this );
return 0;
}
else
if ( Fl::event_button1() )
return 1;
return 0;
}
case FL_RELEASE:
if ( _drag )
{
end_drag();
_log.release();
}
fl_cursor( FL_CURSOR_HAND );
return 1;
case FL_DRAG:
case FL_DND_DRAG:
{
if ( ! _drag )
{
begin_drag ( Drag( x() - X, y() - Y ) );
_log.hold();
}
fl_cursor( FL_CURSOR_MOVE );
const int ox = _drag->x;
redraw();
if ( timeline->ts_to_x( timeline->xoffset ) + ox + X > _track->x() )
{
int nx = (ox + X) - _track->x();
// _r->offset = timeline->x_to_ts( nx ) + timeline->xoffset;
offset( timeline->x_to_ts( nx ) + timeline->xoffset );
if ( Sequence_Widget::_current == this )
_track->snap( this );
}
if ( X >= _track->x() + _track->w() ||
X <= _track->x() )
{
/* this drag needs to scroll */
nframes_t pos = timeline->xoffset;
nframes_t d = timeline->x_to_ts( 100 );
if ( X <= _track->x() )
{
if ( pos > d )
pos -= d;
else
pos = 0;
}
else
pos += d;
timeline->xposition( timeline->ts_to_x( pos ) );
_track->redraw();
}
return 1;
}
default:
return 0;
}
}