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selection.cc

/*
    Copyright (C) 2002 Paul Davis 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <algorithm>
#include <sigc++/bind.h>
#include <pbd/error.h>
#include <pbd/stacktrace.h>

#include <ardour/playlist.h>

#include "region_view.h"
#include "selection.h"
#include "selection_templates.h"
#include "time_axis_view.h"
#include "automation_time_axis.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;
using namespace sigc;

struct AudioRangeComparator {
    bool operator()(AudioRange a, AudioRange b) {
          return a.start < b.start;
    }
};

Selection&
Selection::operator= (const Selection& other)
{
      if (&other != this) {
            regions = other.regions;
            tracks = other.tracks;
            time = other.time;
            lines = other.lines;
      }
      return *this;
}

bool
operator== (const Selection& a, const Selection& b)
{
      return a.regions == b.regions &&
            a.tracks == b.tracks &&
            a.time.track == b.time.track &&
            a.time.group == b.time.group && 
            a.time == b.time &&
            a.lines == b.lines &&
            a.playlists == b.playlists &&
            a.redirects == b.redirects;
}

void
Selection::clear ()
{
      clear_tracks ();
      clear_regions ();
      clear_points ();
      clear_lines();
      clear_time ();
      clear_playlists ();
      clear_redirects ();
}

void
Selection::dump_region_layers()
{
      cerr << "region selection layer dump" << endl;
      for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
            cerr << "layer: " << (int)(*i)->region()->layer() << endl;
      }
}


void
Selection::clear_redirects ()
{
      if (!redirects.empty()) {
            redirects.clear ();
            RedirectsChanged ();
      }
}

void
Selection::clear_regions ()
{
      if (!regions.empty()) {
            regions.clear_all ();
            RegionsChanged();
      }
}

void
Selection::clear_tracks ()
{
      if (!tracks.empty()) {
            tracks.clear ();
            TracksChanged();
      }
}

void
Selection::clear_time ()
{
      time.track = 0;
      time.group = 0;
      time.clear();

      TimeChanged ();
}

void
Selection::clear_playlists ()
{
      /* Selections own their playlists */

      for (PlaylistSelection::iterator i = playlists.begin(); i != playlists.end(); ++i) {
            /* selections own their own regions, which are copies of the "originals". make them go away */
            (*i)->drop_regions ();
            (*i)->release ();
      }

      if (!playlists.empty()) {
            playlists.clear ();
            PlaylistsChanged();
      }
}

void
Selection::clear_lines ()
{
      if (!lines.empty()) {
            lines.clear ();
            LinesChanged();
      }
}

void
Selection::clear_markers ()
{
      if (!markers.empty()) {
            markers.clear ();
            MarkersChanged();
      }
}

void
Selection::toggle (boost::shared_ptr<Redirect> r)
{
      RedirectSelection::iterator i;

      if ((i = find (redirects.begin(), redirects.end(), r)) == redirects.end()) {
            redirects.push_back (r);
      } else {
            redirects.erase (i);
      }
      RedirectsChanged();

}

void
Selection::toggle (boost::shared_ptr<Playlist> pl)
{
      PlaylistSelection::iterator i;

      if ((i = find (playlists.begin(), playlists.end(), pl)) == playlists.end()) {
            pl->use ();
            playlists.push_back(pl);
      } else {
            playlists.erase (i);
      }

      PlaylistsChanged ();
}

void
Selection::toggle (const list<TimeAxisView*>& track_list)
{
      for (list<TimeAxisView*>::const_iterator i = track_list.begin(); i != track_list.end(); ++i) {
            toggle ( (*i) );
      }
}

void
Selection::toggle (TimeAxisView* track)
{
      TrackSelection::iterator i;
      
      if ((i = find (tracks.begin(), tracks.end(), track)) == tracks.end()) {
            void (Selection::*pmf)(TimeAxisView*) = &Selection::remove;
            track->GoingAway.connect (sigc::bind (mem_fun (*this, pmf), track));
            tracks.push_back (track);
      } else {
            tracks.erase (i);
      }

      TracksChanged();
}

void
Selection::toggle (RegionView* r)
{
      RegionSelection::iterator i;

      if ((i = find (regions.begin(), regions.end(), r)) == regions.end()) {
            add (r);
      } else {
            remove (*i);
      }

      RegionsChanged ();
}

void
Selection::toggle (vector<RegionView*>& r)
{
      RegionSelection::iterator i;

      for (vector<RegionView*>::iterator x = r.begin(); x != r.end(); ++x) {
            if ((i = find (regions.begin(), regions.end(), (*x))) == regions.end()) {
                  add ((*x));
            } else {
                  remove (*x);
            }
      }

      RegionsChanged ();
}

long
Selection::toggle (nframes_t start, nframes_t end)
{
      AudioRangeComparator cmp;

      /* XXX this implementation is incorrect */

      time.push_back (AudioRange (start, end, next_time_id++));
      time.consolidate ();
      time.sort (cmp);
      
      TimeChanged ();

      return next_time_id - 1;
}


void
Selection::add (boost::shared_ptr<Redirect> r)
{
      if (find (redirects.begin(), redirects.end(), r) == redirects.end()) {
            redirects.push_back (r);
            RedirectsChanged();
      }
}

void
Selection::add (boost::shared_ptr<Playlist> pl)
{
      if (find (playlists.begin(), playlists.end(), pl) == playlists.end()) {
            pl->use ();
            playlists.push_back(pl);
            PlaylistsChanged ();
      }
}

void
Selection::add (const list<boost::shared_ptr<Playlist> >& pllist)
{
      bool changed = false;

      for (list<boost::shared_ptr<Playlist> >::const_iterator i = pllist.begin(); i != pllist.end(); ++i) {
            if (find (playlists.begin(), playlists.end(), (*i)) == playlists.end()) {
                  (*i)->use ();
                  playlists.push_back (*i);
                  changed = true;
            }
      }
      
      if (changed) {
            PlaylistsChanged ();
      }
}

void
Selection::add (const list<TimeAxisView*>& track_list)
{
      bool changed = false;

      for (list<TimeAxisView*>::const_iterator i = track_list.begin(); i != track_list.end(); ++i) {
            if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
                  void (Selection::*pmf)(TimeAxisView*) = &Selection::remove;
                  (*i)->GoingAway.connect (sigc::bind (mem_fun (*this, pmf), (*i)));
                  tracks.push_back (*i);
                  changed = true;
            }
      }
      
      if (changed) {
            TracksChanged ();
      }
}

void
Selection::add (TimeAxisView* track)
{
      if (find (tracks.begin(), tracks.end(), track) == tracks.end()) {
            void (Selection::*pmf)(TimeAxisView*) = &Selection::remove;
            track->GoingAway.connect (sigc::bind (mem_fun (*this, pmf), track));
            tracks.push_back (track);
            TracksChanged();
      }
}

void
Selection::add (vector<RegionView*>& v)
{
      /* XXX This method or the add (const RegionSelection&) needs to go
       */

      bool changed = false;
      
      for (vector<RegionView*>::iterator i = v.begin(); i != v.end(); ++i) {
            if (find (regions.begin(), regions.end(), (*i)) == regions.end()) {
                  changed = regions.add ((*i));
                  if (Config->get_link_region_and_track_selection() && changed) {
                        add (&(*i)->get_trackview());
                  }
            }
      }

      if (changed) {
            RegionsChanged ();
      }
}

void
Selection::add (const RegionSelection& rs)
{
      /* XXX This method or the add (const vector<RegionView*>&) needs to go
       */

      bool changed = false;
      
      for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
            if (find (regions.begin(), regions.end(), (*i)) == regions.end()) {
                  changed = regions.add ((*i));
                  if (Config->get_link_region_and_track_selection() && changed) {
                        add (&(*i)->get_trackview());
                  }
            }
      }
      
      if (changed) {
            RegionsChanged ();
      }
}

void
Selection::add (RegionView* r)
{
      if (find (regions.begin(), regions.end(), r) == regions.end()) {
            regions.add (r);
            if (Config->get_link_region_and_track_selection()) {
                  add (&r->get_trackview());
            }
            RegionsChanged ();
      }
}

long
Selection::add (nframes_t start, nframes_t end)
{
      AudioRangeComparator cmp;

      /* XXX this implementation is incorrect */

      time.push_back (AudioRange (start, end, next_time_id++));
      time.consolidate ();
      time.sort (cmp);
      
      TimeChanged ();

      return next_time_id - 1;
}

void
Selection::replace (uint32_t sid, nframes_t start, nframes_t end)
{
      for (list<AudioRange>::iterator i = time.begin(); i != time.end(); ++i) {
            if ((*i).id == sid) {
                  time.erase (i);
                  time.push_back (AudioRange(start,end, sid));

                  /* don't consolidate here */


                  AudioRangeComparator cmp;
                  time.sort (cmp);

                  TimeChanged ();
                  break;
            }
      }
}

void
Selection::add (AutomationList* ac)
{
      if (find (lines.begin(), lines.end(), ac) == lines.end()) {
            lines.push_back (ac);
            LinesChanged();
      }
}

void
Selection::remove (boost::shared_ptr<Redirect> r)
{
      RedirectSelection::iterator i;
      if ((i = find (redirects.begin(), redirects.end(), r)) != redirects.end()) {
            redirects.erase (i);
            RedirectsChanged ();
      }
}

void
Selection::remove (TimeAxisView* track)
{
      list<TimeAxisView*>::iterator i;
      if ((i = find (tracks.begin(), tracks.end(), track)) != tracks.end()) {
            tracks.erase (i);
            TracksChanged();
      }
}

void
Selection::remove (const list<TimeAxisView*>& track_list)
{
      bool changed = false;

      for (list<TimeAxisView*>::const_iterator i = track_list.begin(); i != track_list.end(); ++i) {

            list<TimeAxisView*>::iterator x;

            if ((x = find (tracks.begin(), tracks.end(), (*i))) != tracks.end()) {
                  tracks.erase (x);
                  changed = true;
            }
      }

      if (changed) {
            TracksChanged();
      }
}

void
Selection::remove (boost::shared_ptr<Playlist> track)
{
      list<boost::shared_ptr<Playlist> >::iterator i;
      if ((i = find (playlists.begin(), playlists.end(), track)) != playlists.end()) {
            playlists.erase (i);
            PlaylistsChanged();
      }
}

void
Selection::remove (const list<boost::shared_ptr<Playlist> >& pllist)
{
      bool changed = false;

      for (list<boost::shared_ptr<Playlist> >::const_iterator i = pllist.begin(); i != pllist.end(); ++i) {

            list<boost::shared_ptr<Playlist> >::iterator x;

            if ((x = find (playlists.begin(), playlists.end(), (*i))) != playlists.end()) {
                  playlists.erase (x);
                  changed = true;
            }
      }

      if (changed) {
            PlaylistsChanged();
      }
}

void
Selection::remove (RegionView* r)
{
      if (regions.remove (r)) {
            RegionsChanged ();
      }

      if (Config->get_link_region_and_track_selection() && !regions.involves (r->get_trackview())) {
            remove (&r->get_trackview());
      }
}


void
Selection::remove (uint32_t selection_id)
{
      if (time.empty()) {
            return;
      }

      for (list<AudioRange>::iterator i = time.begin(); i != time.end(); ++i) {
            if ((*i).id == selection_id) {
                  time.erase (i);
                                    
                  TimeChanged ();
                  break;
            }
      }
}

void
Selection::remove (nframes_t start, nframes_t end)
{
}

void
Selection::remove (AutomationList *ac)
{
      list<AutomationList*>::iterator i;
      if ((i = find (lines.begin(), lines.end(), ac)) != lines.end()) {
            lines.erase (i);
            LinesChanged();
      }
}

void
Selection::set (boost::shared_ptr<Redirect> r)
{
      clear_redirects ();
      add (r);
}

void
Selection::set (TimeAxisView* track)
{
      clear_tracks ();
      add (track);
}

void
Selection::set (const list<TimeAxisView*>& track_list)
{
      clear_tracks ();
      add (track_list);
}

void
Selection::set (boost::shared_ptr<Playlist> playlist)
{
      clear_playlists ();
      add (playlist);
}

void
Selection::set (const list<boost::shared_ptr<Playlist> >& pllist)
{
      clear_playlists ();
      add (pllist);
}

void
Selection::set (const RegionSelection& rs)
{
      clear_regions();
      regions = rs;
      RegionsChanged(); /* EMIT SIGNAL */
}

void
Selection::set (RegionView* r, bool also_clear_tracks)
{
      clear_regions ();
      if (also_clear_tracks) {
            clear_tracks ();
      }
      add (r);
}

void
Selection::set (vector<RegionView*>& v)
{
      clear_regions ();
      if (Config->get_link_region_and_track_selection()) {
            clear_tracks ();
            // make sure to deselect any automation selections
            clear_points();
      }
      add (v);
}

long
Selection::set (TimeAxisView* track, nframes_t start, nframes_t end)
{
      if ((start == 0 && end == 0) || end < start) {
            return 0;
      }

      if (time.empty()) {
            time.push_back (AudioRange (start, end, next_time_id++));
      } else {
            /* reuse the first entry, and remove all the rest */

            while (time.size() > 1) {
                  time.pop_front();
            }
            time.front().start = start;
            time.front().end = end;
      }

      if (track) {
            time.track = track;
            time.group = track->edit_group();
      } else {
            time.track = 0;
            time.group = 0;
      }

      time.consolidate ();

      TimeChanged ();

      return time.front().id;
}

void
Selection::set (AutomationList *ac)
{
      lines.clear();
      add (ac);
}

bool
Selection::selected (Marker* m)
{
      return find (markers.begin(), markers.end(), m) != markers.end();
}

bool
Selection::selected (TimeAxisView* tv)
{
      return find (tracks.begin(), tracks.end(), tv) != tracks.end();
}

bool
Selection::selected (RegionView* rv)
{
      return find (regions.begin(), regions.end(), rv) != regions.end();
}

bool
Selection::empty ()
{
      return regions.empty () &&
            tracks.empty () &&
            points.empty () && 
            playlists.empty () && 
            lines.empty () &&
            time.empty () &&
            playlists.empty () &&
            redirects.empty () &&
            markers.empty()
            ;
}

void
Selection::toggle (const vector<AutomationSelectable*>& autos)
{
      for (vector<AutomationSelectable*>::const_iterator x = autos.begin(); x != autos.end(); ++x) {
            if ((*x)->get_selected()) {
                  points.remove (**x);
            } else {
                  points.push_back (**x);
            }

            delete *x;
      }

      PointsChanged (); /* EMIT SIGNAL */
}

void
Selection::toggle (list<Selectable*>& selectables)
{
      RegionView* rv;
      AutomationSelectable* as;
      vector<RegionView*> rvs;
      vector<AutomationSelectable*> autos;

      for (std::list<Selectable*>::iterator i = selectables.begin(); i != selectables.end(); ++i) {
            if ((rv = dynamic_cast<RegionView*> (*i)) != 0) {
                  rvs.push_back (rv);
            } else if ((as = dynamic_cast<AutomationSelectable*> (*i)) != 0) {
                  autos.push_back (as);
            } else {
                  fatal << _("programming error: ")
                        << X_("unknown selectable type passed to Selection::toggle()")
                        << endmsg;
                  /*NOTREACHED*/
            }
      }

      if (!rvs.empty()) {
            toggle (rvs);
      } 

      if (!autos.empty()) {
            toggle (autos);
      } 
}

void
Selection::set (list<Selectable*>& selectables)
{
      clear_regions();
      clear_points ();
      add (selectables);
}


void
Selection::add (list<Selectable*>& selectables)
{
      RegionView* rv;
      AutomationSelectable* as;
      vector<RegionView*> rvs;
      vector<AutomationSelectable*> autos;

      for (std::list<Selectable*>::iterator i = selectables.begin(); i != selectables.end(); ++i) {
            if ((rv = dynamic_cast<RegionView*> (*i)) != 0) {
                  rvs.push_back (rv);
            } else if ((as = dynamic_cast<AutomationSelectable*> (*i)) != 0) {
                  autos.push_back (as);
            } else {
                  fatal << _("programming error: ")
                        << X_("unknown selectable type passed to Selection::add()")
                        << endmsg;
                  /*NOTREACHED*/
            }
      }

      if (!rvs.empty()) {
            add (rvs);
      } 

      if (!autos.empty()) {
            add (autos);
      } 
}

void
Selection::clear_points ()
{
      if (!points.empty()) {
            points.clear ();
            PointsChanged ();
      }
}

void
Selection::add (vector<AutomationSelectable*>& autos)
{
      for (vector<AutomationSelectable*>::iterator i = autos.begin(); i != autos.end(); ++i) {
            points.push_back (**i);
      }

      PointsChanged ();
}

void
Selection::set (Marker* m)
{
      clear_markers ();
      add (m);
}

void
Selection::toggle (Marker* m)
{
      MarkerSelection::iterator i;
      
      if ((i = find (markers.begin(), markers.end(), m)) == markers.end()) {
            add (m);
      } else {
            remove (m);
      }
}

void
Selection::remove (Marker* m)
{
      MarkerSelection::iterator i;

      if ((i = find (markers.begin(), markers.end(), m)) != markers.end()) {
            markers.erase (i);
            MarkersChanged();
      }
}

void
Selection::add (Marker* m)
{
      if (find (markers.begin(), markers.end(), m) == markers.end()) {

            /* disambiguate which remove() for the compiler */
            
            void (Selection::*pmf)(Marker*) = &Selection::remove;

            m->GoingAway.connect (bind (mem_fun (*this, pmf), m));

            markers.push_back (m);
            MarkersChanged();
      }
}

void
Selection::add (const list<Marker*>& m)
{
      markers.insert (markers.end(), m.begin(), m.end());
      MarkersChanged ();
}

void
MarkerSelection::range (nframes64_t& s, nframes64_t& e)
{
      s = max_frames;
      e = 0;

      for (MarkerSelection::iterator i = begin(); i != end(); ++i) {

            if ((*i)->position() < s) {
                  s = (*i)->position();
            } 

            if ((*i)->position() > e) {
                  e = (*i)->position();
            }
      }

      s = std::min (s, e);
      e = std::max (s, e);
}

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