libs/ardour/region_factory.cc

   1 /*
   2     Copyright (C) 2000-2006 Paul Davis
   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 */
  19
  20 #include "pbd/error.h"
  21 #include "pbd/boost_debug.h"
  22
  23 #include "ardour/session.h"
  24
  25 #include "ardour/region_factory.h"
  26 #include "ardour/region.h"
  27 #include "ardour/audioregion.h"
  28 #include "ardour/audiosource.h"
  29 #include "ardour/midi_source.h"
  30 #include "ardour/midi_region.h"
  31
  32 #include "i18n.h"
  33
  34 using namespace ARDOUR;
  35 using namespace PBD;
  36
  37 PBD::Signal1<void,boost::shared_ptr<Region> > RegionFactory::CheckNewRegion;
  38 map<PBD::ID,boost::weak_ptr<Region> > RegionFactory::region_map;
  39
  40 boost::shared_ptr<Region>
  41 RegionFactory::create (boost::shared_ptr<const Region> region)
  42 {
  43         boost::shared_ptr<Region> ret;
  44         boost::shared_ptr<const AudioRegion> ar;
  45         boost::shared_ptr<const MidiRegion> mr;
  46
  47         if ((ar = boost::dynamic_pointer_cast<const AudioRegion>(region)) != 0) {
  48
  49                 AudioRegion* arn = new AudioRegion (ar, 0, true);
  50                 boost_debug_shared_ptr_mark_interesting (arn, "Region");
  51
  52                 boost::shared_ptr<AudioRegion> arp (arn);
  53                 ret = boost::static_pointer_cast<Region> (arp);
  54
  55         } else if ((mr = boost::dynamic_pointer_cast<const MidiRegion>(region)) != 0) {
  56
  57                 MidiRegion* mrn = new MidiRegion (mr, 0, true);
  58                 boost::shared_ptr<MidiRegion> mrp (mrn);
  59                 ret = boost::static_pointer_cast<Region> (mrp);
  60
  61         } else {
  62                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
  63                       << endmsg;
  64                 /*NOTREACHED*/
  65         }
  66
  67         if (ret) {
  68                 ret->unlock_property_changes ();
  69                 map_add (ret);
  70
  71                 /* pure copy constructor - no property list */
  72                 /* pure copy constructor - no CheckNewRegion emitted */
  73         }
  74
  75         return ret;
  76 }
  77
  78 boost::shared_ptr<Region>
  79 RegionFactory::create (boost::shared_ptr<Region> region, frameoffset_t offset, const PropertyList& plist, bool announce)
  80 {
  81         boost::shared_ptr<Region> ret;
  82         boost::shared_ptr<const AudioRegion> other_a;
  83         boost::shared_ptr<const MidiRegion> other_m;
  84
  85         if ((other_a = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
  86
  87                 AudioRegion* ar = new AudioRegion (other_a, offset, true);
  88                 boost_debug_shared_ptr_mark_interesting (ar, "Region");
  89
  90                 boost::shared_ptr<AudioRegion> arp (ar);
  91                 ret = boost::static_pointer_cast<Region> (arp);
  92
  93         } else if ((other_m = boost::dynamic_pointer_cast<MidiRegion>(region)) != 0) {
  94
  95                 MidiRegion* mr = new MidiRegion (other_m, offset, true);
  96                 boost::shared_ptr<MidiRegion> mrp (mr);
  97                 ret = boost::static_pointer_cast<Region> (mrp);
  98
  99         } else {
 100                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
 101                       << endmsg;
 102                 /*NOTREACHED*/
 103                 return boost::shared_ptr<Region>();
 104         }
 105
 106         if (ret) {
 107
 108                 ret->set_properties (plist);
 109                 ret->unlock_property_changes ();
 110
 111                 map_add (ret);
 112
 113                 if (announce) {
 114                         CheckNewRegion (ret);
 115                 }
 116         }
 117
 118         return ret;
 119 }
 120
 121 boost::shared_ptr<Region>
 122 RegionFactory::create (boost::shared_ptr<Region> region, const PropertyList& plist, bool announce)
 123 {
 124         boost::shared_ptr<Region> ret;
 125         boost::shared_ptr<const AudioRegion> other_a;
 126         boost::shared_ptr<const MidiRegion> other_m;
 127
 128         if ((other_a = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
 129
 130                 AudioRegion* ar = new AudioRegion (other_a, 0, false);
 131                 boost_debug_shared_ptr_mark_interesting (ar, "Region");
 132
 133                 boost::shared_ptr<AudioRegion> arp (ar);
 134                 ret = boost::static_pointer_cast<Region> (arp);
 135
 136         } else if ((other_m = boost::dynamic_pointer_cast<MidiRegion>(region)) != 0) {
 137
 138                 MidiRegion* mr = new MidiRegion (other_m, 0, false);
 139                 boost::shared_ptr<MidiRegion> mrp (mr);
 140                 ret = boost::static_pointer_cast<Region> (mrp);
 141
 142         } else {
 143                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
 144                       << endmsg;
 145                 /*NOTREACHED*/
 146                 return boost::shared_ptr<Region>();
 147         }
 148
 149         if (ret) {
 150
 151                 ret->set_properties (plist);
 152                 ret->unlock_property_changes ();
 153
 154                 map_add (ret);
 155
 156                 if (announce) {
 157                         CheckNewRegion (ret);
 158                 }
 159         }
 160
 161         return ret;
 162 }
 163
 164
 165
 166
 167 boost::shared_ptr<Region>
 168 RegionFactory::create (boost::shared_ptr<Region> region, const SourceList& srcs, const PropertyList& plist, bool announce)
 169 {
 170         boost::shared_ptr<Region> ret;
 171         boost::shared_ptr<const AudioRegion> other;
 172
 173         /* used by AudioFilter when constructing a new region that is intended to have nearly
 174            identical settings to an original, but using different sources.
 175         */
 176
 177         if ((other = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
 178
 179                 // XXX use me in caller where plist is setup, this is start i think srcs.front()->length (srcs.front()->timeline_position())
 180
 181                 AudioRegion* ar = new AudioRegion (other, srcs);
 182                 boost_debug_shared_ptr_mark_interesting (ar, "Region");
 183
 184                 boost::shared_ptr<AudioRegion> arp (ar);
 185                 ret = boost::static_pointer_cast<Region> (arp);
 186
 187         } else {
 188                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
 189                       << endmsg;
 190                 /*NOTREACHED*/
 191         }
 192
 193         if (ret) {
 194
 195                 ret->set_properties (plist);
 196                 ret->unlock_property_changes ();
 197
 198                 map_add (ret);
 199
 200                 if (announce) {
 201                         CheckNewRegion (ret);
 202                 }
 203         }
 204
 205         return ret;
 206
 207 }
 208
 209 boost::shared_ptr<Region>
 210 RegionFactory::create (boost::shared_ptr<Source> src, const PropertyList& plist, bool announce)
 211 {
 212         SourceList srcs;
 213         srcs.push_back (src);
 214         return create (srcs, plist, announce);
 215 }
 216
 217 boost::shared_ptr<Region>
 218 RegionFactory::create (const SourceList& srcs, const PropertyList& plist, bool announce)
 219 {
 220         boost::shared_ptr<Region> ret;
 221         boost::shared_ptr<AudioSource> as;
 222         boost::shared_ptr<MidiSource> ms;
 223
 224         if ((as = boost::dynamic_pointer_cast<AudioSource>(srcs[0])) != 0) {
 225
 226                 AudioRegion* ar = new AudioRegion (srcs);
 227                 boost_debug_shared_ptr_mark_interesting (ar, "Region");
 228
 229                 boost::shared_ptr<AudioRegion> arp (ar);
 230                 ret = boost::static_pointer_cast<Region> (arp);
 231
 232         } else if ((ms = boost::dynamic_pointer_cast<MidiSource>(srcs[0])) != 0) {
 233                 MidiRegion* mr = new MidiRegion (srcs);
 234                 boost_debug_shared_ptr_mark_interesting (mr, "Region");
 235
 236                 boost::shared_ptr<MidiRegion> mrp (mr);
 237                 ret = boost::static_pointer_cast<Region> (mrp);
 238         }
 239
 240         if (ret) {
 241                 ret->set_properties (plist);
 242                 ret->unlock_property_changes ();
 243
 244                 map_add (ret);
 245
 246                 if (announce) {
 247                         CheckNewRegion (ret);
 248                 }
 249         }
 250
 251         return ret;
 252 }
 253
 254 boost::shared_ptr<Region>
 255 RegionFactory::create (Session& session, XMLNode& node, bool yn)
 256 {
 257         return session.XMLRegionFactory (node, yn);
 258 }
 259
 260 boost::shared_ptr<Region>
 261 RegionFactory::create (SourceList& srcs, const XMLNode& node)
 262 {
 263         boost::shared_ptr<Region> ret;
 264
 265         if (srcs.empty()) {
 266                 return ret;
 267         }
 268
 269         if (srcs[0]->type() == DataType::AUDIO) {
 270
 271                 AudioRegion* ar = new AudioRegion (srcs);
 272                 boost_debug_shared_ptr_mark_interesting (ar, "Region");
 273
 274                 boost::shared_ptr<AudioRegion> arp (ar);
 275                 ret = boost::static_pointer_cast<Region> (arp);
 276
 277         } else if (srcs[0]->type() == DataType::MIDI) {
 278
 279                 MidiRegion* mr = new MidiRegion (srcs);
 280
 281                 boost::shared_ptr<MidiRegion> mrp (mr);
 282                 ret = boost::static_pointer_cast<Region> (mrp);
 283         }
 284
 285         if (ret) {
 286
 287                 if (ret->set_state (node, Stateful::loading_state_version)) {
 288                         ret.reset ();
 289                 } else {
 290                         ret->unlock_property_changes ();
 291                         map_add (ret);
 292                         CheckNewRegion (ret);
 293                 }
 294         }
 295
 296         return ret;
 297 }
 298
 299
 300 void
 301 RegionFactory::map_add (boost::shared_ptr<Region> r)
 302 {
 303         pair<ID,boost::weak_ptr<Region> > p;
 304         p.first = r->id();
 305         p.second = r;
 306
 307         region_map.insert (p);
 308 }
 309
 310 boost::shared_ptr<Region>
 311 RegionFactory::region_by_id (const PBD::ID& id)
 312 {
 313         map<ID,boost::weak_ptr<Region> >::iterator i = region_map.find (id);
 314
 315         if (i == region_map.end()) {
 316                 return boost::shared_ptr<Region>();
 317         }
 318
 319         return i->second.lock();
 320 }
 321
 322 void
 323 RegionFactory::clear_map ()
 324 {
 325         region_map.clear ();
 326 }