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         void add_search_path (const PBD::Searchpath& search_path);
  61
  62         void remove_search_path (const PBD::Searchpath& search_path);
  63
  64         boost::shared_ptr<MIDINameDocument> document_by_model(std::string model_name)
  65                 { return _documents[model_name]; }
  66
  67         boost::shared_ptr<MasterDeviceNames> master_device_by_model(std::string model_name)
  68                 { return _master_devices_by_model[model_name]; }
  69
  70         boost::shared_ptr<ChannelNameSet> find_channel_name_set(
  71                         std::string model,
  72                         std::string custom_device_mode,
  73                         uint8_t channel) {
  74                 boost::shared_ptr<MIDI::Name::MasterDeviceNames> master_device = master_device_by_model(model);
  75
  76                 if (master_device != 0 && custom_device_mode != "") {
  77                         return master_device->channel_name_set_by_channel(custom_device_mode, channel);
  78                 } else {
  79                         return boost::shared_ptr<ChannelNameSet>();
  80                 }
  81         }
  82
  83         boost::shared_ptr<Patch> find_patch(
  84                         std::string model,
  85                         std::string custom_device_mode,
  86                         uint8_t channel,
  87                         PatchPrimaryKey patch_key) {
  88
  89                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
  90
  91                 if (channel_name_set) {
  92                         return  channel_name_set->find_patch(patch_key);
  93                 } else {
  94                         return boost::shared_ptr<Patch>();
  95                 }
  96         }
  97
  98         boost::shared_ptr<Patch> previous_patch(
  99                         std::string model,
 100                         std::string custom_device_mode,
 101                         uint8_t channel,
 102                         PatchPrimaryKey patch_key) {
 103
 104                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 105
 106                 if (channel_name_set) {
 107                         return  channel_name_set->previous_patch(patch_key);
 108                 } else {
 109                         return boost::shared_ptr<Patch>();
 110                 }
 111         }
 112
 113         boost::shared_ptr<Patch> next_patch(
 114                         std::string model,
 115                         std::string custom_device_mode,
 116                         uint8_t channel,
 117                         PatchPrimaryKey patch_key) {
 118
 119                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 120
 121                 if (channel_name_set) {
 122                         return  channel_name_set->next_patch(patch_key);
 123                 } else {
 124                         return boost::shared_ptr<Patch>();
 125                 }
 126         }
 127
 128         std::list<std::string> custom_device_mode_names_by_model(std::string model_name) {
 129                 if (model_name != "") {
 130                         if (master_device_by_model(model_name)) {
 131                                 return master_device_by_model(model_name)->custom_device_mode_names();
 132                         }
 133                 }
 134                 return std::list<std::string>();
 135         }
 136
 137         const MasterDeviceNames::Models& all_models() const { return _all_models; }
 138
 139         const DeviceNamesByMaker& devices_by_manufacturer() const { return _devices_by_manufacturer; }
 140
 141 private:
 142         bool add_midi_name_document(const std::string& file_path);
 143         bool remove_midi_name_document(const std::string& file_path);
 144
 145         void add_midnam_files_from_directory(const std::string& directory_path);
 146         void remove_midnam_files_from_directory(const std::string& directory_path);
 147
 148 private:
 149         PBD::Searchpath                         _search_path;
 150
 151         MidiNameDocuments                       _documents;
 152         MIDINameDocument::MasterDeviceNamesList _master_devices_by_model;
 153         DeviceNamesByMaker                      _devices_by_manufacturer;
 154         MasterDeviceNames::Models               _all_models;
 155 };
 156
 157 } // namespace Name
 158
 159 } // namespace MIDI
 160
 161 #endif /* MIDI_PATCH_MANAGER_H_ */