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livetrax/gtk2_ardour/midi_streamview.h
Robin Gareus f003bee985
Use a dedicated Canvas Group for MRV
This fixes rendering of opaque MIDI regions (previously
MIDI regions were always transparent). This change provides a
way to "flatten" layered MIDI regions, while still allowing
to show the note-line and grid behind the regions.
2022-12-10 02:37:05 +01:00

159 lines
4.6 KiB
C++

/*
* Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2007 Doug McLain <doug@nostar.net>
* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
*
* 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 __ardour_midi_streamview_h__
#define __ardour_midi_streamview_h__
#include <list>
#include <cmath>
#include "ardour/location.h"
#include "enums.h"
#include "streamview.h"
#include "time_axis_view_item.h"
#include "route_time_axis.h"
namespace Gdk {
class Color;
}
namespace ARDOUR {
class Crossfade;
class MidiModel;
class MidiRegion;
class Route;
class Source;
struct PeakData;
}
namespace ArdourCanvas {
class LineSet;
}
class PublicEditor;
class Selectable;
class MidiTimeAxisView;
class MidiRegionView;
class RegionSelection;
class CrossfadeView;
class Selection;
class MidiStreamView : public StreamView
{
public:
MidiStreamView (MidiTimeAxisView&);
~MidiStreamView ();
void get_inverted_selectables (Selection&, std::list<Selectable* >& results);
void get_regions_with_selected_data (RegionSelection&);
enum VisibleNoteRange {
FullRange,
ContentsRange
};
Gtk::Adjustment note_range_adjustment;
void set_note_range(VisibleNoteRange r);
inline uint8_t lowest_note() const { return _lowest_note; }
inline uint8_t highest_note() const { return _highest_note; }
void update_note_range(uint8_t note_num);
void set_layer_display (LayerDisplay);
//bool can_change_layer_display() const { return false; } // revert this change for now. Although stacked view is weirdly implemented wrt the "scroomer", it is still necessary to be able to manage layered regions.
void redisplay_track ();
inline double contents_height() const {
return (child_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2);
}
inline double note_to_y(uint8_t note) const {
return contents_height() - (note + 1 - lowest_note()) * note_height() + 1;
}
uint8_t y_to_note(double y) const;
inline double note_height() const {
return contents_height() / (double)contents_note_range();
}
inline uint8_t contents_note_range() const {
return highest_note() - lowest_note() + 1;
}
sigc::signal<void> NoteRangeChanged;
RegionView* create_region_view (boost::shared_ptr<ARDOUR::Region>, bool, bool);
bool paste (Temporal::timepos_t const & pos, const Selection& selection, PasteContext& ctx);
void apply_note_range(uint8_t lowest, uint8_t highest, bool to_region_views);
void suspend_updates ();
void resume_updates ();
ArdourCanvas::Container* midi_underlay () const { return _midi_underlay; }
ArdourCanvas::Container* region_canvas () const { return _region_group; }
protected:
void setup_rec_box ();
void update_rec_box ();
ArdourCanvas::Container* _midi_underlay;
ArdourCanvas::Container* _region_group;
private:
RegionView* add_region_view_internal (
boost::shared_ptr<ARDOUR::Region>,
bool wait_for_waves,
bool recording = false);
void display_region(MidiRegionView* region_view, bool load_model);
void display_track (boost::shared_ptr<ARDOUR::Track> tr);
void update_contents_height ();
void draw_note_lines();
bool update_data_note_range(uint8_t min, uint8_t max);
void update_contents_metrics(boost::shared_ptr<ARDOUR::Region> r);
void color_handler ();
void note_range_adjustment_changed();
void apply_note_range_to_regions ();
bool _range_dirty;
double _range_sum_cache;
uint8_t _lowest_note; ///< currently visible
uint8_t _highest_note; ///< currently visible
uint8_t _data_note_min; ///< in data
uint8_t _data_note_max; ///< in data
ArdourCanvas::LineSet* _note_lines;
/** true if updates to the note lines and regions are currently suspended */
bool _updates_suspended;
};
#endif /* __ardour_midi_streamview_h__ */