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 #include "pbd/signals.h"
  27 #include "pbd/search_path.h"
  28
  29 #include "ardour/libardour_visibility.h"
  30
  31 namespace MIDI
  32 {
  33
  34 namespace Name
  35 {
  36
  37 class LIBARDOUR_API MidiPatchManager
  38 {
  39         /// Singleton
  40 private:
  41         MidiPatchManager();
  42         MidiPatchManager( const MidiPatchManager& );
  43         MidiPatchManager& operator= (const MidiPatchManager&);
  44
  45         static MidiPatchManager* _manager;
  46
  47 public:
  48         typedef std::map<std::string, boost::shared_ptr<MIDINameDocument> >    MidiNameDocuments;
  49         typedef std::map<std::string, MIDINameDocument::MasterDeviceNamesList> DeviceNamesByMaker;
  50
  51         virtual ~MidiPatchManager() { _manager = 0; }
  52
  53         static MidiPatchManager& instance() {
  54                 if (_manager == 0) {
  55                         _manager = new MidiPatchManager();
  56                 }
  57                 return *_manager;
  58         }
  59
  60         PBD::Signal0<void> PatchesChanged;
  61
  62         bool add_custom_midnam (const std::string& id, const std::string& midnam);
  63         bool remove_custom_midnam (const std::string& id);
  64
  65         void add_search_path (const PBD::Searchpath& search_path);
  66
  67         void remove_search_path (const PBD::Searchpath& search_path);
  68
  69         boost::shared_ptr<MIDINameDocument> document_by_model(std::string model_name) const;
  70
  71         boost::shared_ptr<MasterDeviceNames> master_device_by_model(std::string model_name)
  72                 { return _master_devices_by_model[model_name]; }
  73
  74         boost::shared_ptr<ChannelNameSet> find_channel_name_set(
  75                         std::string model,
  76                         std::string custom_device_mode,
  77                         uint8_t channel) {
  78                 boost::shared_ptr<MIDI::Name::MasterDeviceNames> master_device = master_device_by_model(model);
  79
  80                 if (master_device != 0 && custom_device_mode != "") {
  81                         return master_device->channel_name_set_by_channel(custom_device_mode, channel);
  82                 } else {
  83                         return boost::shared_ptr<ChannelNameSet>();
  84                 }
  85         }
  86
  87         boost::shared_ptr<Patch> find_patch(
  88                         std::string model,
  89                         std::string custom_device_mode,
  90                         uint8_t channel,
  91                         PatchPrimaryKey patch_key) {
  92
  93                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
  94
  95                 if (channel_name_set) {
  96                         return  channel_name_set->find_patch(patch_key);
  97                 } else {
  98                         return boost::shared_ptr<Patch>();
  99                 }
 100         }
 101
 102         boost::shared_ptr<Patch> previous_patch(
 103                         std::string model,
 104                         std::string custom_device_mode,
 105                         uint8_t channel,
 106                         PatchPrimaryKey patch_key) {
 107
 108                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 109
 110                 if (channel_name_set) {
 111                         return  channel_name_set->previous_patch(patch_key);
 112                 } else {
 113                         return boost::shared_ptr<Patch>();
 114                 }
 115         }
 116
 117         boost::shared_ptr<Patch> next_patch(
 118                         std::string model,
 119                         std::string custom_device_mode,
 120                         uint8_t channel,
 121                         PatchPrimaryKey patch_key) {
 122
 123                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 124
 125                 if (channel_name_set) {
 126                         return  channel_name_set->next_patch(patch_key);
 127                 } else {
 128                         return boost::shared_ptr<Patch>();
 129                 }
 130         }
 131
 132         std::list<std::string> custom_device_mode_names_by_model(std::string model_name) {
 133                 if (model_name != "") {
 134                         if (master_device_by_model(model_name)) {
 135                                 return master_device_by_model(model_name)->custom_device_mode_names();
 136                         }
 137                 }
 138                 return std::list<std::string>();
 139         }
 140
 141         const MasterDeviceNames::Models& all_models() const { return _all_models; }
 142
 143         const DeviceNamesByMaker& devices_by_manufacturer() const { return _devices_by_manufacturer; }
 144
 145 private:
 146         bool load_midi_name_document(const std::string& file_path);
 147         bool add_midi_name_document(boost::shared_ptr<MIDINameDocument>);
 148         bool remove_midi_name_document(const std::string& file_path);
 149
 150         void add_midnam_files_from_directory(const std::string& directory_path);
 151         void remove_midnam_files_from_directory(const std::string& directory_path);
 152
 153 private:
 154         PBD::Searchpath                         _search_path;
 155
 156         MidiNameDocuments                       _documents;
 157         MIDINameDocument::MasterDeviceNamesList _master_devices_by_model;
 158         DeviceNamesByMaker                      _devices_by_manufacturer;
 159         MasterDeviceNames::Models               _all_models;
 160 };
 161
 162 } // namespace Name
 163
 164 } // namespace MIDI
 165
 166 #endif /* MIDI_PATCH_MANAGER_H_ */