115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
/*
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <ardour/curve.h>
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#include <ardour/audioregion.h>
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#include <pbd/memento_command.h>
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#include "region_gain_line.h"
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#include "audio_region_view.h"
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#include "utils.h"
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#include "time_axis_view.h"
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#include "editor.h"
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#include <ardour/session.h>
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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AudioRegionGainLine::AudioRegionGainLine (const string & name, Session& s, AudioRegionView& r, ArdourCanvas::Group& parent, Curve& c)
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: AutomationLine (name, r.get_time_axis_view(), parent, c),
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session (s),
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rv (r)
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{
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group->raise_to_top ();
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group->property_y() = 2;
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set_verbose_cursor_uses_gain_mapping (true);
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terminal_points_can_slide = false;
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}
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void
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AudioRegionGainLine::view_to_model_y (double& y)
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{
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y = slider_position_to_gain (y);
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y = max (0.0, y);
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y = min (2.0, y);
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}
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void
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AudioRegionGainLine::model_to_view_y (double& y)
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{
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if (y < 0) y = 0;
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y = gain_to_slider_position (y);
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}
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void
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AudioRegionGainLine::start_drag (ControlPoint* cp, nframes_t x, float fraction)
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{
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AutomationLine::start_drag (cp, x, fraction);
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if (!rv.audio_region()->envelope_active()) {
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trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), &rv.audio_region()->get_state(), 0));
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rv.audio_region()->set_envelope_active(false);
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}
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}
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// This is an extended copy from AutomationList
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void
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AudioRegionGainLine::remove_point (ControlPoint& cp)
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{
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ModelRepresentation mr;
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model_representation (cp, mr);
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trackview.editor.current_session()->begin_reversible_command (_("remove control point"));
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XMLNode &before = alist.get_state();
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if (!rv.audio_region()->envelope_active()) {
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XMLNode ®ion_before = rv.audio_region()->get_state();
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rv.audio_region()->set_envelope_active(true);
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XMLNode ®ion_after = rv.audio_region()->get_state();
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trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), ®ion_before, ®ion_after));
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}
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alist.erase (mr.start, mr.end);
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trackview.editor.current_session()->add_command (new MementoCommand<AutomationList>(alist, &before, &alist.get_state()));
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trackview.editor.current_session()->commit_reversible_command ();
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trackview.editor.current_session()->set_dirty ();
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}
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void
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AudioRegionGainLine::end_drag (ControlPoint* cp)
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{
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if (!rv.audio_region()->envelope_active()) {
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rv.audio_region()->set_envelope_active(true);
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trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), 0, &rv.audio_region()->get_state()));
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}
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AutomationLine::end_drag(cp);
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}
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