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 <sigc++/sigc++.h>
  22 #include <boost/shared_ptr.hpp>
  23
  24 #include <pbd/file_utils.h>
  25
  26 #include "ardour/session.h"
  27 #include "ardour/session_directory.h"
  28 #include "ardour/midi_patch_manager.h"
  29
  30 using namespace std;
  31 using namespace sigc;
  32 using namespace ARDOUR;
  33 using namespace MIDI;
  34 using namespace MIDI::Name;
  35 using namespace PBD;
  36 using namespace PBD::sys;
  37
  38 MidiPatchManager* MidiPatchManager::_manager = 0;
  39
  40 void
  41 MidiPatchManager::set_session (Session& s)
  42 {
  43         _session = &s;
  44         _session->GoingAway.connect (mem_fun (*this, &MidiPatchManager::drop_session));
  45
  46         refresh();
  47 }
  48
  49 void
  50 MidiPatchManager::refresh()
  51 {
  52         _documents.clear();
  53         _master_devices_by_model.clear();
  54         _all_models.clear();
  55
  56         path path_to_patches = _session->session_directory().midi_patch_path();
  57
  58         cerr << "Path to patches: " << path_to_patches.to_string() << endl;
  59
  60         if(!exists(path_to_patches)) {
  61                 return;
  62         }
  63         cerr << "Path to patches: " << path_to_patches.to_string() << " exists" << endl;
  64
  65         assert(is_directory(path_to_patches));
  66
  67         Glib::PatternSpec pattern(Glib::ustring("*.midnam"));
  68         vector<path> result;
  69
  70         find_matching_files_in_directory(path_to_patches, pattern, result);
  71
  72         cerr << "patchfiles result contains " << result.size() << " elements" << endl;
  73
  74         for(vector<path>::iterator i = result.begin(); i != result.end(); ++i) {
  75                 cerr << "processing patchfile " << i->to_string() << endl;
  76
  77                 boost::shared_ptr<MIDINameDocument> document(new MIDINameDocument(i->to_string()));
  78                 for(MIDINameDocument::MasterDeviceNamesList::const_iterator device =
  79                           document->master_device_names_by_model().begin();
  80                     device != document->master_device_names_by_model().end();
  81                     ++device) {
  82                         cerr << "got model " << device->first << endl;
  83                         // have access to the documents by model name
  84                         _documents[device->first] = document;
  85                         // build a list of all master devices from all documents
  86                         _master_devices_by_model[device->first] = device->second;
  87                         _all_models.push_back(device->first);
  88
  89                         // make sure there are no double model names
  90                         // TODO: handle this gracefully.
  91                         assert(_documents.count(device->first) == 1);
  92                         assert(_master_devices_by_model.count(device->first) == 1);
  93                 }
  94         }
  95 }
  96
  97 void
  98 MidiPatchManager::drop_session ()
  99 {
 100         _session = 0;
 101         _documents.clear();
 102         _master_devices_by_model.clear();
 103         _all_models.clear();
 104 }