2 Copyright (C) 2003 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <ardour/curve.h>
21 #include <ardour/route.h>
22 #include <pbd/memento_command.h>
24 #include "gain_automation_time_axis.h"
25 #include "automation_line.h"
30 using namespace ARDOUR
;
34 GainAutomationTimeAxisView::GainAutomationTimeAxisView (Session
& s
, boost::shared_ptr
<Route
> r
,
35 PublicEditor
& e
, TimeAxisView
& parent
,
36 ArdourCanvas::Canvas
& canvas
, const string
& n
, ARDOUR::Curve
& c
)
39 AutomationTimeAxisView (s
, r
, e
, parent
, canvas
, n
, X_("gain"), ""),
45 GainAutomationTimeAxisView::~GainAutomationTimeAxisView ()
50 GainAutomationTimeAxisView::add_automation_event (ArdourCanvas::Item
* item
, GdkEvent
* event
, nframes_t when
, double y
)
54 canvas_display
->w2i (x
, y
);
56 /* compute vertical fractional position */
58 y
= 1.0 - (y
/ height
);
62 lines
.front()->view_to_model_y (y
);
64 _session
.begin_reversible_command (_("add gain automation event"));
65 XMLNode
& before
= curve
.get_state();
67 XMLNode
& after
= curve
.get_state();
68 _session
.commit_reversible_command (new MementoCommand
<ARDOUR::Curve
>(curve
, &before
, &after
));
69 _session
.set_dirty ();
73 GainAutomationTimeAxisView::set_automation_state (AutoState state
)
75 if (!ignore_state_request
) {
76 route
->set_gain_automation_state (state
);