libs/ardour/ardour/midi_patch_manager.h

   1 /*
   2     Copyright (C) 2008 Hans Baier
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19 */
  20
  21 #ifndef MIDI_PATCH_MANAGER_H_
  22 #define MIDI_PATCH_MANAGER_H_
  23
  24 #include "midi++/midnam_patch.h"
  25
  26 namespace ARDOUR {
  27         class Session;
  28 }
  29
  30 namespace MIDI
  31 {
  32
  33 namespace Name
  34 {
  35
  36 class MidiPatchManager
  37 {
  38         /// Singleton
  39 private:
  40         MidiPatchManager() {};
  41         MidiPatchManager( const MidiPatchManager& );
  42         MidiPatchManager& operator= (const MidiPatchManager&);
  43
  44         static MidiPatchManager* _manager;
  45
  46 public:
  47         typedef std::map<std::string, boost::shared_ptr<MIDINameDocument> > MidiNameDocuments;
  48
  49         virtual ~MidiPatchManager() { _manager = 0; }
  50
  51         static MidiPatchManager& instance() {
  52                 if (_manager == 0) {
  53                         _manager = new MidiPatchManager();
  54                 }
  55                 return *_manager;
  56         }
  57
  58         void set_session (ARDOUR::Session&);
  59
  60         boost::shared_ptr<MIDINameDocument> document_by_model(std::string model_name)
  61                 { return _documents[model_name]; }
  62
  63         boost::shared_ptr<MasterDeviceNames> master_device_by_model(std::string model_name)
  64                 { return _master_devices_by_model[model_name]; }
  65
  66         boost::shared_ptr<ChannelNameSet> find_channel_name_set(
  67                         string model,
  68                         string custom_device_mode,
  69                         uint8_t channel) {
  70                 boost::shared_ptr<MIDI::Name::MasterDeviceNames> master_device = master_device_by_model(model);
  71
  72                 if (master_device != 0 && custom_device_mode != "") {
  73                         return master_device->
  74                                  channel_name_set_by_device_mode_and_channel(custom_device_mode, channel);
  75                 } else {
  76                         return boost::shared_ptr<ChannelNameSet>();
  77                 }
  78         }
  79
  80
  81         boost::shared_ptr<Patch> find_patch(
  82                         string model,
  83                         string custom_device_mode,
  84                         uint8_t channel,
  85                         PatchPrimaryKey patch_key) {
  86
  87                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
  88
  89                 if (channel_name_set) {
  90                         return  channel_name_set->find_patch(patch_key);
  91                 } else {
  92                         return boost::shared_ptr<Patch>();
  93                 }
  94         }
  95
  96         boost::shared_ptr<Patch> previous_patch(
  97                         string model,
  98                         string custom_device_mode,
  99                         uint8_t channel,
 100                         PatchPrimaryKey patch_key) {
 101
 102                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 103
 104                 if (channel_name_set) {
 105                         return  channel_name_set->previous_patch(patch_key);
 106                 } else {
 107                         return boost::shared_ptr<Patch>();
 108                 }
 109         }
 110
 111         boost::shared_ptr<Patch> next_patch(
 112                         string model,
 113                         string custom_device_mode,
 114                         uint8_t channel,
 115                         PatchPrimaryKey patch_key) {
 116
 117                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 118
 119                 if (channel_name_set) {
 120                         return  channel_name_set->next_patch(patch_key);
 121                 } else {
 122                         return boost::shared_ptr<Patch>();
 123                 }
 124         }
 125
 126         std::list<string> custom_device_mode_names_by_model(std::string model_name) {
 127                 if (model_name != "") {
 128                         return master_device_by_model(model_name)->custom_device_mode_names();
 129                 } else {
 130                         return std::list<string>();
 131                 }
 132         }
 133
 134         const MasterDeviceNames::Models& all_models() const { return _all_models; }
 135
 136 private:
 137         void drop_session();
 138         void refresh();
 139
 140         ARDOUR::Session*                        _session;
 141         MidiNameDocuments                       _documents;
 142         MIDINameDocument::MasterDeviceNamesList _master_devices_by_model;
 143         MasterDeviceNames::Models               _all_models;
 144 };
 145
 146 } // namespace Name
 147
 148 } // namespace MIDI
 149 #endif /* MIDI_PATCH_MANAGER_H_ */