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
  27 #include "gtkmm/table.h"
  28 #include "gtkmm/button.h"
  29 #include "gtkmm/label.h"
  30 #include "gtkmm2ext/stateful_button.h"
  31
  32 #include "ardour/types.h"
  33
  34 class MidiChannelSelector : public Gtk::Table
  35 {
  36 public:
  37         MidiChannelSelector(int n_rows = 4, int n_columns = 4, int start_row = 0, int start_column = 0);
  38         virtual ~MidiChannelSelector() = 0;
  39
  40         sigc::signal<void> clicked;
  41
  42         void set_channel_colors(const uint32_t new_channel_colors[16]);
  43         void set_default_channel_color();
  44
  45 protected:
  46         virtual void button_toggled(Gtk::ToggleButton* button, uint8_t button_nr) = 0;
  47         Gtk::Label        _button_labels[4][4];
  48         Gtkmm2ext::StatefulToggleButton _buttons[4][4];
  49         int               _recursion_counter;
  50         bool              was_clicked (GdkEventButton*);
  51 };
  52
  53 class SingleMidiChannelSelector : public MidiChannelSelector
  54 {
  55 public:
  56         SingleMidiChannelSelector(uint8_t active_channel = 0);
  57
  58         uint8_t get_active_channel() const { return _active_channel; }
  59
  60         sigc::signal<void, uint8_t> channel_selected;
  61
  62 protected:
  63         virtual void button_toggled(Gtk::ToggleButton* button, uint8_t button_nr);
  64
  65         Gtk::ToggleButton* _last_active_button;
  66         uint8_t            _active_channel;
  67 };
  68
  69 class MidiMultipleChannelSelector : public MidiChannelSelector
  70 {
  71 public:
  72         MidiMultipleChannelSelector(ARDOUR::ChannelMode mode = ARDOUR::FilterChannels,
  73                                     uint16_t initial_selection = 0xFFFF);
  74
  75         virtual ~MidiMultipleChannelSelector();
  76
  77         /** The channel mode or selected channel(s) has changed.
  78          *  First parameter is the new channel mode, second parameter is a bitmask
  79          *  of the currently selected channels.
  80          */
  81         sigc::signal<void, ARDOUR::ChannelMode, uint16_t> mode_changed;
  82
  83         void set_channel_mode(ARDOUR::ChannelMode mode, uint16_t mask);
  84
  85         /**
  86          * @return each bit in the returned word represents a midi channel, eg.
  87          *         bit 0 represents channel 0 and bit 15 represents channel 15
  88          *
  89          */
  90         uint16_t get_selected_channels() const;
  91         void     set_selected_channels(uint16_t selected_channels);
  92
  93 protected:
  94         ARDOUR::ChannelMode _channel_mode;
  95         ARDOUR::NoteMode    _note_mode;
  96
  97         virtual void button_toggled(Gtk::ToggleButton* button, uint8_t button_nr);
  98         void force_channels_button_toggled();
  99
 100         void select_all(bool on);
 101         void invert_selection(void);
 102
 103         Gtk::Button       _select_all;
 104         Gtk::Button       _select_none;
 105         Gtk::Button       _invert_selection;
 106         Gtk::ToggleButton _force_channel;
 107 };
 108
 109 #endif /*__ardour_ui_midi_channel_selector_h__*/