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 update_custom_midnam (const std::string& id, const std::string& midnam);
  64         bool remove_custom_midnam (const std::string& id);
  65
  66         void add_search_path (const PBD::Searchpath& search_path);
  67
  68         void remove_search_path (const PBD::Searchpath& search_path);
  69
  70         boost::shared_ptr<MIDINameDocument> document_by_model(std::string model_name) const;
  71
  72         boost::shared_ptr<MasterDeviceNames> master_device_by_model(std::string model_name)
  73                 { return _master_devices_by_model[model_name]; }
  74
  75         boost::shared_ptr<ChannelNameSet> find_channel_name_set(
  76                         std::string model,
  77                         std::string custom_device_mode,
  78                         uint8_t channel) {
  79                 boost::shared_ptr<MIDI::Name::MasterDeviceNames> master_device = master_device_by_model(model);
  80
  81                 if (master_device != 0 && custom_device_mode != "") {
  82                         return master_device->channel_name_set_by_channel(custom_device_mode, channel);
  83                 } else {
  84                         return boost::shared_ptr<ChannelNameSet>();
  85                 }
  86         }
  87
  88         boost::shared_ptr<Patch> find_patch(
  89                         std::string model,
  90                         std::string custom_device_mode,
  91                         uint8_t channel,
  92                         PatchPrimaryKey patch_key) {
  93
  94                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
  95
  96                 if (channel_name_set) {
  97                         return  channel_name_set->find_patch(patch_key);
  98                 } else {
  99                         return boost::shared_ptr<Patch>();
 100                 }
 101         }
 102
 103         boost::shared_ptr<Patch> previous_patch(
 104                         std::string model,
 105                         std::string custom_device_mode,
 106                         uint8_t channel,
 107                         PatchPrimaryKey patch_key) {
 108
 109                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 110
 111                 if (channel_name_set) {
 112                         return  channel_name_set->previous_patch(patch_key);
 113                 } else {
 114                         return boost::shared_ptr<Patch>();
 115                 }
 116         }
 117
 118         boost::shared_ptr<Patch> next_patch(
 119                         std::string model,
 120                         std::string custom_device_mode,
 121                         uint8_t channel,
 122                         PatchPrimaryKey patch_key) {
 123
 124                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 125
 126                 if (channel_name_set) {
 127                         return  channel_name_set->next_patch(patch_key);
 128                 } else {
 129                         return boost::shared_ptr<Patch>();
 130                 }
 131         }
 132
 133         std::list<std::string> custom_device_mode_names_by_model(std::string model_name) {
 134                 if (model_name != "") {
 135                         if (master_device_by_model(model_name)) {
 136                                 return master_device_by_model(model_name)->custom_device_mode_names();
 137                         }
 138                 }
 139                 return std::list<std::string>();
 140         }
 141
 142         const MasterDeviceNames::Models& all_models() const { return _all_models; }
 143
 144         const DeviceNamesByMaker& devices_by_manufacturer() const { return _devices_by_manufacturer; }
 145
 146 private:
 147         bool load_midi_name_document(const std::string& file_path);
 148         bool add_midi_name_document(boost::shared_ptr<MIDINameDocument>);
 149         bool remove_midi_name_document(const std::string& file_path, bool emit_signal = true);
 150
 151         void add_midnam_files_from_directory(const std::string& directory_path);
 152         void remove_midnam_files_from_directory(const std::string& directory_path);
 153
 154 private:
 155         PBD::Searchpath                         _search_path;
 156
 157         MidiNameDocuments                       _documents;
 158         MIDINameDocument::MasterDeviceNamesList _master_devices_by_model;
 159         DeviceNamesByMaker                      _devices_by_manufacturer;
 160         MasterDeviceNames::Models               _all_models;
 161 };
 162
 163 } // namespace Name
 164
 165 } // namespace MIDI
 166
 167 #endif /* MIDI_PATCH_MANAGER_H_ */