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                         std::string model,
  68                         std::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->channel_name_set_by_device_mode_and_channel(custom_device_mode, channel);
  74                 } else {
  75                         return boost::shared_ptr<ChannelNameSet>();
  76                 }
  77         }
  78
  79
  80         boost::shared_ptr<Patch> find_patch(
  81                         std::string model,
  82                         std::string custom_device_mode,
  83                         uint8_t channel,
  84                         PatchPrimaryKey patch_key) {
  85
  86                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
  87
  88                 if (channel_name_set) {
  89                         return  channel_name_set->find_patch(patch_key);
  90                 } else {
  91                         return boost::shared_ptr<Patch>();
  92                 }
  93         }
  94
  95         boost::shared_ptr<Patch> previous_patch(
  96                         std::string model,
  97                         std::string custom_device_mode,
  98                         uint8_t channel,
  99                         PatchPrimaryKey patch_key) {
 100
 101                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 102
 103                 if (channel_name_set) {
 104                         return  channel_name_set->previous_patch(patch_key);
 105                 } else {
 106                         return boost::shared_ptr<Patch>();
 107                 }
 108         }
 109
 110         boost::shared_ptr<Patch> next_patch(
 111                         std::string model,
 112                         std::string custom_device_mode,
 113                         uint8_t channel,
 114                         PatchPrimaryKey patch_key) {
 115
 116                 boost::shared_ptr<ChannelNameSet> channel_name_set = find_channel_name_set(model, custom_device_mode, channel);
 117
 118                 if (channel_name_set) {
 119                         return  channel_name_set->next_patch(patch_key);
 120                 } else {
 121                         return boost::shared_ptr<Patch>();
 122                 }
 123         }
 124
 125         std::list<std::string> custom_device_mode_names_by_model(std::string model_name) {
 126                 if (model_name != "") {
 127                         return master_device_by_model(model_name)->custom_device_mode_names();
 128                 } else {
 129                         return std::list<std::string>();
 130                 }
 131         }
 132
 133         const MasterDeviceNames::Models& all_models() const { return _all_models; }
 134
 135 private:
 136         void drop_session();
 137         void refresh();
 138
 139         ARDOUR::Session*                        _session;
 140         MidiNameDocuments                       _documents;
 141         MIDINameDocument::MasterDeviceNamesList _master_devices_by_model;
 142         MasterDeviceNames::Models               _all_models;
 143 };
 144
 145 } // namespace Name
 146
 147 } // namespace MIDI
 148 #endif /* MIDI_PATCH_MANAGER_H_ */