diff options
Diffstat (limited to 'gtk2_ardour/gain_automation_time_axis.cc')
-rw-r--r-- | gtk2_ardour/gain_automation_time_axis.cc | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gtk2_ardour/gain_automation_time_axis.cc b/gtk2_ardour/gain_automation_time_axis.cc new file mode 100644 index 0000000000..2f739e0fad --- /dev/null +++ b/gtk2_ardour/gain_automation_time_axis.cc @@ -0,0 +1,75 @@ +/* + Copyright (C) 2003 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. + + $Id$ +*/ + +#include <ardour/curve.h> +#include <ardour/route.h> + +#include "gain_automation_time_axis.h" +#include "automation_line.h" + +#include "i18n.h" + +using namespace ARDOUR; +using namespace Gtk; + +GainAutomationTimeAxisView::GainAutomationTimeAxisView (Session& s, Route& r, PublicEditor& e, TimeAxisView& parent, Widget* p, std::string n, ARDOUR::Curve& c) + + : AxisView (s), + AutomationTimeAxisView (s, r, e, parent, p, n, X_("gain"), ""), + curve (c) + +{ +} + +GainAutomationTimeAxisView::~GainAutomationTimeAxisView () +{ +} + +void +GainAutomationTimeAxisView::add_automation_event (GtkCanvasItem* item, GdkEvent* event, jack_nframes_t when, double y) +{ + double x = 0; + + gtk_canvas_item_w2i (canvas_display, &x, &y); + + /* compute vertical fractional position */ + + y = 1.0 - (y / height); + + /* map using line */ + + lines.front()->view_to_model_y (y); + + _session.begin_reversible_command (_("add gain automation event")); + + _session.add_undo (curve.get_memento()); + curve.add (when, y); + _session.add_redo_no_execute (curve.get_memento()); + _session.commit_reversible_command (); + _session.set_dirty (); +} + +void +GainAutomationTimeAxisView::set_automation_state (AutoState state) +{ + if (!ignore_state_request) { + route.set_gain_automation_state (state); + } +} |