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livetrax/gtk2_ardour/editor_keys.cc
nick_m 59daffea1d rework snap
snap now fills in a struct (MusicFrame) which contins a snapped frame
along with a music divisor.
this gives useful information wrt magnetic snap which may or may not
have rounded to an exact musical position.

region position may now be set musically (using quarter notes for now).

this patch fixes several problems in the current code:

	- dragging a list of music-locked regions now maintains correct
	  musical offsets within the list.

	- splitting regions using magnetic snap works correctly (#7192)

	- cut drag should now work correctly with magnetic snap.

	- musical length of split midi regions is no longer frame based.
2017-02-04 22:57:36 +11:00

114 lines
3.0 KiB
C++

/*
Copyright (C) 2000 Paul Davis
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; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cstdlib>
#include <cmath>
#include <string>
#include <gtkmm/treeview.h>
#include "pbd/error.h"
#include "ardour/session.h"
#include "editor.h"
#include "region_view.h"
#include "selection.h"
#include "time_axis_view.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
void
Editor::keyboard_selection_finish (bool /*add*/, Editing::EditIgnoreOption ign)
{
if (_session) {
MusicFrame start (selection->time.start(), 0);
framepos_t end;
if ((_edit_point == EditAtPlayhead) && _session->transport_rolling()) {
end = _session->audible_frame();
} else {
end = get_preferred_edit_position(ign);
}
//snap the selection start/end
snap_to (start);
//if no tracks are selected and we're working from the keyboard, enable all tracks (_something_ has to be selected for any range selection)
if ( (_edit_point == EditAtPlayhead) && selection->tracks.empty() )
select_all_tracks();
selection->set (start.frame, end);
//if session is playing a range, cancel that
if (_session->get_play_range())
_session->request_cancel_play_range();
}
}
void
Editor::keyboard_selection_begin (Editing::EditIgnoreOption ign)
{
if (_session) {
MusicFrame start (0, 0);
MusicFrame end (selection->time.end_frame(), 0);
if ((_edit_point == EditAtPlayhead) && _session->transport_rolling()) {
start.frame = _session->audible_frame();
} else {
start.frame = get_preferred_edit_position(ign);
}
//snap the selection start/end
snap_to(start);
//if there's not already a sensible selection endpoint, go "forever"
if (start.frame > end.frame) {
#ifdef MIXBUS
// 4hours at most.
// This works around a visual glitch in red-bordered selection rect.
end.frame = start.frame + _session->nominal_frame_rate() * 60 * 60 * 4;
#else
end.frame = max_framepos;
#endif
}
//if no tracks are selected and we're working from the keyboard, enable all tracks (_something_ has to be selected for any range selection)
if ( selection->tracks.empty() )
select_all_tracks();
selection->set (start.frame, end.frame);
//if session is playing a range, cancel that
if (_session->get_play_range())
_session->request_cancel_play_range();
}
}
void
Editor::keyboard_paste ()
{
paste (1, false);
}