Robin Gareus
4050ca5633
Copyright-holder and year information is extracted from git log. git history begins in 2005. So (C) from 1998..2005 is lost. Also some (C) assignment of commits where the committer didn't use --author.
152 lines
4.5 KiB
C++
152 lines
4.5 KiB
C++
/*
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* Copyright (C) 2013-2018 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2014-2015 David Robillard <d@drobilla.net>
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* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __gtk_ardour_note_base_h__
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#define __gtk_ardour_note_base_h__
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#include <boost/shared_ptr.hpp>
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#include "temporal/beats.h"
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#include "canvas/types.h"
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#include "gtkmm2ext/colors.h"
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#include "rgb_macros.h"
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#include "ui_config.h"
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class Editor;
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class MidiRegionView;
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namespace Evoral {
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template<typename T> class Note;
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class Beats;
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}
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namespace ArdourCanvas {
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class Item;
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class Text;
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}
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/** Base class for canvas notes (sustained note rectangles and hit diamonds).
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*
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* This is not actually a canvas item itself to avoid the dreaded diamond
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* inheritance pattern, since various types of canvas items (Note (rect), Hit
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* (diamond), etc) need to share this functionality but can't share an
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* ancestor.
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*
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* Note: Because of this, derived classes need to manually bounce events to
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* on_event, it won't happen automatically.
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*/
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class NoteBase : public sigc::trackable
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{
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public:
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typedef Evoral::Note<Temporal::Beats> NoteType;
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NoteBase (MidiRegionView& region, bool, const boost::shared_ptr<NoteType> note = boost::shared_ptr<NoteType>());
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virtual ~NoteBase ();
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void set_item (ArdourCanvas::Item *);
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ArdourCanvas::Item* item() const { return _item; }
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virtual void show() = 0;
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virtual void hide() = 0;
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bool valid() const { return _valid; }
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void invalidate ();
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void validate ();
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bool selected() const { return _selected; }
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void set_selected(bool yn);
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virtual void move_event(double dx, double dy) = 0;
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uint32_t base_color();
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void show_velocity();
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void hide_velocity();
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/** Channel changed for this specific event */
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void on_channel_change(uint8_t channel);
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/** Channel selection changed */
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void on_channel_selection_change(uint16_t selection);
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virtual void set_outline_color(uint32_t c) = 0;
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virtual void set_fill_color(uint32_t c) = 0;
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virtual void set_ignore_events(bool ignore) = 0;
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virtual ArdourCanvas::Coord x0 () const = 0;
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virtual ArdourCanvas::Coord y0 () const = 0;
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virtual ArdourCanvas::Coord x1 () const = 0;
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virtual ArdourCanvas::Coord y1 () const = 0;
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float mouse_x_fraction() const { return _mouse_x_fraction; }
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float mouse_y_fraction() const { return _mouse_y_fraction; }
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const boost::shared_ptr<NoteType> note() const { return _note; }
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MidiRegionView& region_view() const { return _region; }
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static void set_colors ();
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static Gtkmm2ext::Color meter_style_fill_color(uint8_t vel, bool selected);
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/// calculate outline colors from fill colors of notes
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inline static uint32_t calculate_outline(uint32_t color, bool selected=false) {
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if (selected) {
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return _selected_col;
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} else {
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return UINT_INTERPOLATE(color, 0x000000ff, 0.5);
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}
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}
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/// hue circle divided into 16 equal-looking parts, courtesy Thorsten Wilms
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static const uint32_t midi_channel_colors[16];
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bool mouse_near_ends () const;
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virtual bool big_enough_to_trim () const;
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protected:
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enum State { None, Pressed, Dragging };
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MidiRegionView& _region;
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ArdourCanvas::Item* _item;
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ArdourCanvas::Text* _text;
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State _state;
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const boost::shared_ptr<NoteType> _note;
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bool _with_events;
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bool _own_note;
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bool _selected;
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bool _valid;
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float _mouse_x_fraction;
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float _mouse_y_fraction;
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void set_mouse_fractions (GdkEvent*);
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private:
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bool event_handler (GdkEvent *);
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static Gtkmm2ext::Color _selected_col;
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static Gtkmm2ext::SVAModifier color_modifier;
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static Gtkmm2ext::Color velocity_color_table[128];
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static bool _color_init;
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};
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#endif /* __gtk_ardour_note_h__ */
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