gtk2_ardour/midi_channel_selector.h

   1 /*
   2     Copyright (C) 2008 Paul Davis
   3     Author: Hans Baier
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #ifndef __ardour_ui_midi_channel_selector_h__
  21 #define __ardour_ui_midi_channel_selector_h__
  22
  23 #include <set>
  24 #include "boost/shared_ptr.hpp"
  25 #include "sigc++/trackable.h"
  26 #include "gtkmm/table.h"
  27 #include "gtkmm/button.h"
  28 #include "gtkmm/label.h"
  29 #include "gtkmm2ext/stateful_button.h"
  30 #include "ardour/types.h"
  31
  32
  33 class MidiChannelSelector : public Gtk::Table
  34 {
  35 public:
  36         MidiChannelSelector(int n_rows = 4, int n_columns = 4, int start_row = 0, int start_column = 0);
  37         virtual ~MidiChannelSelector() = 0;
  38
  39         sigc::signal<void> clicked;
  40
  41         void set_channel_colors(const uint32_t new_channel_colors[16]);
  42         void set_default_channel_color();
  43
  44 protected:
  45         virtual void button_toggled(Gtk::ToggleButton* button, uint8_t button_nr) = 0;
  46         Gtk::Label        _button_labels[4][4];
  47         Gtkmm2ext::StatefulToggleButton _buttons[4][4];
  48         int               _recursion_counter;
  49         bool              was_clicked (GdkEventButton*);
  50 };
  51
  52 class SingleMidiChannelSelector : public MidiChannelSelector
  53 {
  54 public:
  55         SingleMidiChannelSelector(uint8_t active_channel = 0);
  56
  57         uint8_t get_active_channel() const { return _active_channel; }
  58
  59         sigc::signal<void, uint8_t> channel_selected;
  60
  61 protected:
  62         virtual void button_toggled(Gtk::ToggleButton* button, uint8_t button_nr);
  63
  64         Gtk::ToggleButton* _last_active_button;
  65         uint8_t            _active_channel;
  66 };
  67
  68 class MidiMultipleChannelSelector : public MidiChannelSelector
  69 {
  70 public:
  71         MidiMultipleChannelSelector(ARDOUR::ChannelMode mode = ARDOUR::FilterChannels,
  72                                     uint16_t initial_selection = 0xFFFF);
  73
  74         virtual ~MidiMultipleChannelSelector();
  75
  76         /** The channel mode or selected channel(s) has changed.
  77          *  First parameter is the new channel mode, second parameter is a bitmask
  78          *  of the currently selected channels.
  79          */
  80         sigc::signal<void, ARDOUR::ChannelMode, uint16_t> mode_changed;
  81
  82         void set_channel_mode(ARDOUR::ChannelMode mode, uint16_t mask);
  83
  84         /**
  85          * @return each bit in the returned word represents a midi channel, eg.
  86          *         bit 0 represents channel 0 and bit 15 represents channel 15
  87          *
  88          */
  89         uint16_t get_selected_channels() const;
  90         void     set_selected_channels(uint16_t selected_channels);
  91
  92 protected:
  93         ARDOUR::ChannelMode _channel_mode;
  94         ARDOUR::NoteMode    _note_mode;
  95
  96         virtual void button_toggled(Gtk::ToggleButton* button, uint8_t button_nr);
  97         void force_channels_button_toggled();
  98
  99         void select_all(bool on);
 100         void invert_selection(void);
 101
 102         Gtk::Button       _select_all;
 103         Gtk::Button       _select_none;
 104         Gtk::Button       _invert_selection;
 105         Gtk::ToggleButton _force_channel;
 106 };
 107
 108 #endif /*__ardour_ui_midi_channel_selector_h__*/