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73f4378a51
1. use an idle callback 2. MidiViewBackground::apply_note_range() now returns true/false depending on whether or not it was able to make the requested change. It might fail due to out of bounds note line size, for example.
153 lines
4.3 KiB
C++
153 lines
4.3 KiB
C++
/*
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* Copyright (C) 2008-2025 David Robillard <d@drobilla.net>
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* Copyright (C) 2010-2012 Paul Davis <paul@linuxaudiosystems.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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#pragma once
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#include <pangomm/layout.h>
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#include <glibmm/refptr.h>
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#include "ardour/types.h"
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#include "canvas/rectangle.h"
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#include <ytkmm/adjustment.h>
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namespace Gdk {
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class Window;
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}
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namespace ARDOUR {
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class MidiTrack;
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}
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class MidiView;
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class MidiViewBackground;
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class EditingContext;
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class PianoRollHeaderBase : virtual public sigc::trackable {
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public:
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PianoRollHeaderBase (MidiViewBackground&);
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virtual ~PianoRollHeaderBase() {}
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void render (ArdourCanvas::Rect const & self, ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
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virtual void instrument_info_change ();
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void note_range_changed();
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void set_note_highlight (uint8_t note);
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sigc::signal<void,uint8_t> SetNoteSelection;
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sigc::signal<void,uint8_t> AddNoteSelection;
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sigc::signal<void,uint8_t> ToggleNoteSelection;
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sigc::signal<void,uint8_t> ExtendNoteSelection;
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void set_view (MidiView*);
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virtual void redraw () = 0;
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virtual void redraw (double x, double y, double w, double h) = 0;
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virtual double height() const = 0;
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virtual double width() const = 0;
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virtual double event_y_to_y (double evy) const = 0;
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virtual void draw_transform (double& x, double& y) const = 0;
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virtual void event_transform (double& x, double& y) const = 0;
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virtual void _queue_resize () = 0;
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virtual void do_grab() = 0;
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virtual void do_ungrab() = 0;
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virtual Glib::RefPtr<Gdk::Window> cursor_window() = 0;
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virtual std::shared_ptr<ARDOUR::MidiTrack> midi_track() = 0;
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protected:
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MidiViewBackground& _midi_context;
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Gtk::Adjustment& _adj;
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MidiView* _view;
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uint8_t _event[3];
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mutable Glib::RefPtr<Pango::Layout> _layout;
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mutable Glib::RefPtr<Pango::Layout> _big_c_layout;
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mutable Glib::RefPtr<Pango::Layout> _midnam_layout;
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mutable Pango::FontDescription _font_descript;
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Pango::FontDescription _font_descript_big_c;
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mutable Pango::FontDescription _font_descript_midnam;
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bool _active_notes[128];
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uint8_t _highlighted_note;
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uint8_t _clicked_note;
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double _grab_y;
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bool _dragging;
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mutable double _scroomer_size;
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bool _scroomer_drag;
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double _old_y;
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double _fract;
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double _fract_top;
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double _min_page_size;
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enum scr_pos {TOP, BOTTOM, MOVE, NONE};
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scr_pos _scroomer_state;
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scr_pos _scroomer_button_state;
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double _saved_top_val;
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double _saved_bottom_val;
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mutable bool _mini_map_display;
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bool entered;
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// void on_size_request(Gtk::Requisition*);
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struct NoteName {
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std::string name;
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bool from_midnam;
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};
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NoteName note_names[128];
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bool have_note_names;
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void set_min_page_size (double page_size);
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void render_scroomer (Cairo::RefPtr<Cairo::Context>) const;
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NoteName get_note_name (int note);
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bool event_handler (GdkEvent*);
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bool motion_handler (GdkEventMotion*);
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bool button_press_handler (GdkEventButton*);
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bool button_release_handler (GdkEventButton*);
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bool scroll_handler (GdkEventScroll*);
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bool enter_handler (GdkEventCrossing*);
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bool leave_handler (GdkEventCrossing*);
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enum ItemType {
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BLACK_SEPARATOR,
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BLACK_MIDDLE_SEPARATOR,
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BLACK,
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WHITE_SEPARATOR,
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WHITE_RECT,
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WHITE_CF,
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WHITE_EB,
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WHITE_DGA
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};
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void invalidate_note_range (int lowest, int highest);
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void send_note_on (uint8_t note);
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void send_note_off (uint8_t note);
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void reset_clicked_note (uint8_t, bool invalidate = true);
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bool show_scroomer () const;
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void alloc_layouts (Glib::RefPtr<Pango::Context>);
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void set_cursor (Gdk::Cursor*);
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void begin_scroomer_drag (double event_y);
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void end_scroomer_drag ();
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bool idle_apply_range ();
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double idle_lower;
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double idle_upper;
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sigc::connection scroomer_drag_connection;
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};
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