libs/ardour/midi_patch_manager.cc

   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 #include <boost/shared_ptr.hpp>
  22
  23 #include <glibmm/fileutils.h>
  24
  25 #include "pbd/file_utils.h"
  26 #include "pbd/error.h"
  27
  28 #include "ardour/session.h"
  29 #include "ardour/session_directory.h"
  30 #include "ardour/midi_patch_manager.h"
  31
  32 #include "ardour/search_paths.h"
  33
  34 #include "i18n.h"
  35
  36 using namespace std;
  37 using namespace ARDOUR;
  38 using namespace MIDI;
  39 using namespace MIDI::Name;
  40 using namespace PBD;
  41
  42 MidiPatchManager* MidiPatchManager::_manager = 0;
  43
  44 MidiPatchManager::MidiPatchManager ()
  45 {
  46 }
  47
  48 void
  49 MidiPatchManager::set_session (Session* s)
  50 {
  51         SessionHandlePtr::set_session (s);
  52         refresh ();
  53         add_session_patches ();
  54 }
  55
  56 bool
  57 MidiPatchManager::add_midi_name_document (const std::string& file_path)
  58 {
  59         boost::shared_ptr<MIDINameDocument> document;
  60         try {
  61                 document = boost::shared_ptr<MIDINameDocument>(new MIDINameDocument(file_path));
  62         }
  63         catch (...) {
  64                 error << "Error parsing MIDI patch file " << file_path << endmsg;
  65                 return false;
  66         }
  67         for (MIDINameDocument::MasterDeviceNamesList::const_iterator device =
  68                  document->master_device_names_by_model().begin();
  69              device != document->master_device_names_by_model().end();
  70              ++device) {
  71                 if (_documents.find(device->first) != _documents.end()) {
  72                         warning << string_compose(_("Duplicate MIDI device `%1' in `%2' ignored"),
  73                                                   device->first,
  74                                                   file_path) << endmsg;
  75                         continue;
  76                 }
  77
  78                 _documents[device->first] = document;
  79                 _master_devices_by_model[device->first] = device->second;
  80
  81                 _all_models.insert(device->first);
  82                 const std::string& manufacturer = device->second->manufacturer();
  83                 if (_devices_by_manufacturer.find(manufacturer) ==
  84                     _devices_by_manufacturer.end()) {
  85                         MIDINameDocument::MasterDeviceNamesList empty;
  86                         _devices_by_manufacturer.insert(std::make_pair(manufacturer, empty));
  87                 }
  88                 _devices_by_manufacturer[manufacturer].insert(
  89                     std::make_pair(device->first, device->second));
  90
  91                 // TODO: handle this gracefully.
  92                 assert(_documents.count(device->first) == 1);
  93                 assert(_master_devices_by_model.count(device->first) == 1);
  94         }
  95         return true;
  96 }
  97
  98 void
  99 MidiPatchManager::add_session_patches ()
 100 {
 101         if (!_session) {
 102                 return;
 103         }
 104
 105         std::string path_to_patches = _session->session_directory().midi_patch_path();
 106
 107         if (!Glib::file_test (path_to_patches, Glib::FILE_TEST_EXISTS)) {
 108                 return;
 109         }
 110
 111         assert (Glib::file_test (path_to_patches, Glib::FILE_TEST_IS_DIR));
 112
 113         vector<std::string> result;
 114
 115         find_files_matching_pattern (result, path_to_patches, "*.midnam");
 116
 117         info << "Loading " << result.size() << " MIDI patches from " << path_to_patches << endmsg;
 118
 119         for (vector<std::string>::iterator i = result.begin(); i != result.end(); ++i) {
 120                 add_midi_name_document(*i);
 121         }
 122 }
 123
 124 void
 125 MidiPatchManager::refresh()
 126 {
 127         _documents.clear();
 128         _master_devices_by_model.clear();
 129         _all_models.clear();
 130         _devices_by_manufacturer.clear();
 131
 132         Searchpath search_path = midi_patch_search_path ();
 133         vector<std::string> result;
 134
 135         find_files_matching_pattern (result, search_path, "*.midnam");
 136
 137         info << "Loading " << result.size() << " MIDI patches from " << search_path.to_string() << endmsg;
 138
 139         for (vector<std::string>::iterator i = result.begin(); i != result.end(); ++i) {
 140                 add_midi_name_document (*i);
 141         }
 142
 143         if (_session) {
 144                 add_session_patches ();
 145         }
 146 }
 147
 148 void
 149 MidiPatchManager::session_going_away ()
 150 {
 151         SessionHandlePtr::session_going_away ();
 152         _documents.clear();
 153         _master_devices_by_model.clear();
 154         _all_models.clear();
 155         _devices_by_manufacturer.clear();
 156 }