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livetrax/gtk2_ardour/midi_clip_editor.h
Paul Davis c18823c0e0 triggerbox: change entire UI side to avoid using TriggerPtr
Lifetime management of Triggers is unlike anything(?) we've dealt with in
Ardour so far. The parent object (Triggerbox) has a normal lifetime
pattern, but Triggers can come and go in a way that few other objects
do (although Processors and particularly PluginInsert are somewhat similar).
We do not want the GUI to hold references to the actual Triggers, because the
end of life of a Trigger is not really a signal for the GUI element to go
away (the Trigger will be replaced in the slot). Consequently, we do not
want TriggerPtr used as a member variable anywhere in the UI. Instead we use a
TriggerReference which can "lookup" a Trigger on-demand (by box and slot
number). The (G)UI now uses these exclusively.

Work still needed to pick up trigger swap signals from the boxen.
2021-12-24 14:18:10 -07:00

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/*
* Copyright (C) 2021 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2021 Ben Loftis <ben@harrisonconsoles.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __midi_region_trimmer_box_h__
#define __midi_region_trimmer_box_h__
#include <map>
#include <gtkmm/box.h>
#include <gtkmm/label.h>
#include <gtkmm/table.h>
#include "ardour/ardour.h"
#include "ardour/session_handle.h"
#include "gtkmm2ext/cairo_packer.h"
#include "canvas/canvas.h"
#include "canvas/rectangle.h"
#include "audio_clip_editor.h"
#include "audio_clock.h"
namespace ARDOUR
{
class Session;
class Location;
}
namespace ArdourCanvas
{
class Text;
class Polygon;
}
class MidiClipEditor : public ArdourCanvas::GtkCanvas
{
public:
MidiClipEditor ();
~MidiClipEditor ();
private:
ArdourCanvas::Rectangle* frame;
bool event_handler (GdkEvent* ev);
};
class MidiClipEditorBox : public ClipEditorBox
{
public:
MidiClipEditorBox ();
~MidiClipEditorBox ();
void set_session (ARDOUR::Session*);
void set_region (boost::shared_ptr<ARDOUR::Region>, ARDOUR::TriggerReference);
void region_changed (const PBD::PropertyChange& what_changed);
private:
Gtk::Label _header_label;
Gtk::Table table;
MidiClipEditor* editor;
PBD::ScopedConnection state_connection;
boost::shared_ptr<ARDOUR::Region> _region;
};
#endif /* __midi_region_trimmer_box_h__ */