Add FilmViewer::time_until_next_frame.
[dcpomatic.git] / src / wx / content_panel.cc
index 65fdf588cefb8f2faa7884ffa1dd99eb49733766..7d854224d232a0b939758cd4094e3951d0604a65 100644 (file)
 /*
-    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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,
+    DCP-o-matic 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.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
-#include "lib/audio_content.h"
-#include "lib/subtitle_content.h"
-#include "lib/video_content.h"
-#include "lib/ffmpeg_content.h"
-#include "lib/content_factory.h"
-#include "lib/image_content.h"
-#include "lib/dcp_content.h"
-#include "lib/playlist.h"
 #include "content_panel.h"
 #include "wx_util.h"
 #include "video_panel.h"
 #include "audio_panel.h"
-#include "subtitle_panel.h"
+#include "text_panel.h"
 #include "timing_panel.h"
 #include "timeline_dialog.h"
 #include "image_sequence_dialog.h"
+#include "film_viewer.h"
+#include "dcpomatic_button.h"
+#include "lib/audio_content.h"
+#include "lib/text_content.h"
+#include "lib/video_content.h"
+#include "lib/ffmpeg_content.h"
+#include "lib/content_factory.h"
+#include "lib/image_content.h"
+#include "lib/dcp_content.h"
+#include "lib/case_insensitive_sorter.h"
+#include "lib/playlist.h"
+#include "lib/config.h"
+#include "lib/log.h"
+#include "lib/compose.hpp"
+#include "lib/string_text_file_content.h"
+#include "lib/string_text_file.h"
+#include "lib/dcpomatic_log.h"
 #include <wx/wx.h>
 #include <wx/notebook.h>
 #include <wx/listctrl.h>
+#include <wx/display.h>
 #include <boost/filesystem.hpp>
-
-#include "lib/image_filename_sorter.cc"
+#include <boost/foreach.hpp>
+#include <iostream>
 
 using std::list;
 using std::string;
 using std::cout;
 using std::vector;
+using std::max;
+using std::exception;
 using boost::shared_ptr;
 using boost::weak_ptr;
 using boost::dynamic_pointer_cast;
+using boost::optional;
+using namespace dcpomatic;
+
+class LimitedSplitter : public wxSplitterWindow
+{
+public:
+       LimitedSplitter (wxWindow* parent)
+               : wxSplitterWindow (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxSP_NOBORDER | wxSP_3DSASH | wxSP_LIVE_UPDATE)
+       {
+               /* This value doesn't really mean much but we just want to stop double-click on the
+                  divider from shrinking the bottom panel (#1601).
+               */
+               SetMinimumPaneSize (64);
+       }
+
+       bool OnSashPositionChange (int new_position)
+       {
+               /* Try to stop the top bit of the splitter getting so small that buttons disappear */
+               return new_position > 220;
+       }
+};
 
-ContentPanel::ContentPanel (wxNotebook* n, boost::shared_ptr<Film> film, FilmViewer* viewer)
-       : _timeline_dialog (0)
+ContentPanel::ContentPanel (wxNotebook* n, shared_ptr<Film> film, weak_ptr<FilmViewer> viewer)
+       : _video_panel (0)
+       , _audio_panel (0)
+       , _timeline_dialog (0)
        , _parent (n)
+       , _last_selected_tab (0)
        , _film (film)
+       , _film_viewer (viewer)
        , _generally_sensitive (true)
+       , _ignore_deselect (false)
+       , _no_check_selection (false)
 {
-       _panel = new wxPanel (n);
-       _sizer = new wxBoxSizer (wxVERTICAL);
-       _panel->SetSizer (_sizer);
+       for (int i = 0; i < TEXT_COUNT; ++i) {
+               _text_panel[i] = 0;
+       }
+
+       _splitter = new LimitedSplitter (n);
+       optional<wxRect> screen;
+       int const sn = wxDisplay::GetFromWindow(_splitter);
+       if (sn >= 0) {
+               screen = wxDisplay(sn).GetClientArea();
+       }
+       wxPanel* top = new wxPanel (_splitter);
+
+       _menu = new ContentMenu (_splitter);
 
-       _menu = new ContentMenu (_panel);
 
        {
                wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 
-               _content = new wxListCtrl (_panel, wxID_ANY, wxDefaultPosition, wxSize (320, 160), wxLC_REPORT | wxLC_NO_HEADER);
+               _content = new wxListCtrl (top, wxID_ANY, wxDefaultPosition, wxSize (320, 160), wxLC_REPORT | wxLC_NO_HEADER);
                _content->DragAcceptFiles (true);
                s->Add (_content, 1, wxEXPAND | wxTOP | wxBOTTOM, 6);
 
@@ -72,57 +121,61 @@ ContentPanel::ContentPanel (wxNotebook* n, boost::shared_ptr<Film> film, FilmVie
 
                wxBoxSizer* b = new wxBoxSizer (wxVERTICAL);
 
-               _add_file = new wxButton (_panel, wxID_ANY, _("Add file(s)..."));
-               _add_file->SetToolTip (_("Add video, image or sound files to the film."));
+               _add_file = new Button (top, _("Add file(s)..."));
+               _add_file->SetToolTip (_("Add video, image, sound or subtitle files to the film."));
                b->Add (_add_file, 0, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
 
-               _add_folder = new wxButton (_panel, wxID_ANY, _("Add folder..."));
-               _add_folder->SetToolTip (_("Add a folder of image files (which will be used as a moving image sequence) or a DCP."));
+               _add_folder = new Button (top, _("Add folder..."));
+               _add_folder->SetToolTip (_("Add a folder of image files (which will be used as a moving image sequence) or a folder of sound files."));
                b->Add (_add_folder, 1, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
 
-               _remove = new wxButton (_panel, wxID_ANY, _("Remove"));
+               _add_dcp = new Button (top, _("Add DCP..."));
+               _add_dcp->SetToolTip (_("Add a DCP."));
+               b->Add (_add_dcp, 1, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
+
+               _remove = new Button (top, _("Remove"));
                _remove->SetToolTip (_("Remove the selected piece of content from the film."));
                b->Add (_remove, 0, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
 
-               _earlier = new wxButton (_panel, wxID_ANY, _("Up"));
+               _earlier = new Button (top, _("Earlier"));
                _earlier->SetToolTip (_("Move the selected piece of content earlier in the film."));
                b->Add (_earlier, 0, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
 
-               _later = new wxButton (_panel, wxID_ANY, _("Down"));
+               _later = new Button (top, _("Later"));
                _later->SetToolTip (_("Move the selected piece of content later in the film."));
                b->Add (_later, 0, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
 
-               _timeline = new wxButton (_panel, wxID_ANY, _("Timeline..."));
+               _timeline = new Button (top, _("Timeline..."));
                _timeline->SetToolTip (_("Open the timeline for the film."));
                b->Add (_timeline, 0, wxEXPAND | wxALL, DCPOMATIC_BUTTON_STACK_GAP);
 
                s->Add (b, 0, wxALL, 4);
-
-               _sizer->Add (s, 0, wxEXPAND | wxALL, 6);
+               top->SetSizer (s);
        }
 
-       _notebook = new wxNotebook (_panel, wxID_ANY);
-       _sizer->Add (_notebook, 1, wxEXPAND | wxTOP, 6);
+       _notebook = new wxNotebook (_splitter, wxID_ANY);
 
-       _video_panel = new VideoPanel (this);
-       _panels.push_back (_video_panel);
-       _audio_panel = new AudioPanel (this);
-       _panels.push_back (_audio_panel);
-       _subtitle_panel = new SubtitlePanel (this);
-       _panels.push_back (_subtitle_panel);
-       _timing_panel = new TimingPanel (this, viewer);
-       _panels.push_back (_timing_panel);
+       /* This is a hack to try and make the content notebook a sensible size; large on big displays but small
+          enough on small displays to leave space for the content area.
+       */
+       if (screen) {
+               _splitter->SplitHorizontally (top, _notebook, screen->height > 800 ? -600 : -150);
+       }
+
+       _timing_panel = new TimingPanel (this, _film_viewer);
+       _notebook->AddPage (_timing_panel, _("Timing"), false);
 
-       _content->Bind (wxEVT_COMMAND_LIST_ITEM_SELECTED, boost::bind (&ContentPanel::selection_changed, this));
-       _content->Bind (wxEVT_COMMAND_LIST_ITEM_DESELECTED, boost::bind (&ContentPanel::selection_changed, this));
-       _content->Bind (wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK, boost::bind (&ContentPanel::right_click, this, _1));
+       _content->Bind (wxEVT_LIST_ITEM_SELECTED, boost::bind (&ContentPanel::item_selected, this));
+       _content->Bind (wxEVT_LIST_ITEM_DESELECTED, boost::bind (&ContentPanel::item_deselected, this));
+       _content->Bind (wxEVT_LIST_ITEM_RIGHT_CLICK, boost::bind (&ContentPanel::right_click, this, _1));
        _content->Bind (wxEVT_DROP_FILES, boost::bind (&ContentPanel::files_dropped, this, _1));
-       _add_file->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentPanel::add_file_clicked, this));
-       _add_folder->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentPanel::add_folder_clicked, this));
-       _remove->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentPanel::remove_clicked, this));
-       _earlier->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentPanel::earlier_clicked, this));
-       _later->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentPanel::later_clicked, this));
-       _timeline->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentPanel::timeline_clicked, this));
+       _add_file->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::add_file_clicked, this));
+       _add_folder->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::add_folder_clicked, this));
+       _add_dcp->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::add_dcp_clicked, this));
+       _remove->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::remove_clicked, this, false));
+       _earlier->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::earlier_clicked, this));
+       _later->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::later_clicked, this));
+       _timeline->Bind (wxEVT_BUTTON, boost::bind (&ContentPanel::timeline_clicked, this));
 }
 
 ContentList
@@ -136,56 +189,51 @@ ContentPanel::selected ()
                        break;
                }
 
-               if (s < int (_film->content().size ())) {
-                       sel.push_back (_film->content()[s]);
+               ContentList cl = _film->content();
+               if (s < int (cl.size())) {
+                       sel.push_back (cl[s]);
                }
        }
 
        return sel;
 }
 
-VideoContentList
+ContentList
 ContentPanel::selected_video ()
 {
-       ContentList c = selected ();
-       VideoContentList vc;
+       ContentList vc;
 
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               shared_ptr<VideoContent> t = dynamic_pointer_cast<VideoContent> (*i);
-               if (t) {
-                       vc.push_back (t);
+       BOOST_FOREACH (shared_ptr<Content> i, selected ()) {
+               if (i->video) {
+                       vc.push_back (i);
                }
        }
 
        return vc;
 }
 
-AudioContentList
+ContentList
 ContentPanel::selected_audio ()
 {
-       ContentList c = selected ();
-       AudioContentList ac;
+       ContentList ac;
 
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               shared_ptr<AudioContent> t = dynamic_pointer_cast<AudioContent> (*i);
-               if (t) {
-                       ac.push_back (t);
+       BOOST_FOREACH (shared_ptr<Content> i, selected ()) {
+               if (i->audio) {
+                       ac.push_back (i);
                }
        }
 
        return ac;
 }
 
-SubtitleContentList
-ContentPanel::selected_subtitle ()
+ContentList
+ContentPanel::selected_text ()
 {
-       ContentList c = selected ();
-       SubtitleContentList sc;
+       ContentList sc;
 
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               shared_ptr<SubtitleContent> t = dynamic_pointer_cast<SubtitleContent> (*i);
-               if (t) {
-                       sc.push_back (t);
+       BOOST_FOREACH (shared_ptr<Content> i, selected ()) {
+               if (!i->text.empty()) {
+                       sc.push_back (i);
                }
        }
 
@@ -195,11 +243,10 @@ ContentPanel::selected_subtitle ()
 FFmpegContentList
 ContentPanel::selected_ffmpeg ()
 {
-       ContentList c = selected ();
        FFmpegContentList sc;
 
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               shared_ptr<FFmpegContent> t = dynamic_pointer_cast<FFmpegContent> (*i);
+       BOOST_FOREACH (shared_ptr<Content> i, selected ()) {
+               shared_ptr<FFmpegContent> t = dynamic_pointer_cast<FFmpegContent> (i);
                if (t) {
                        sc.push_back (t);
                }
@@ -213,25 +260,166 @@ ContentPanel::film_changed (Film::Property p)
 {
        switch (p) {
        case Film::CONTENT:
+       case Film::CONTENT_ORDER:
                setup ();
                break;
        default:
                break;
        }
 
-       for (list<ContentSubPanel*>::iterator i = _panels.begin(); i != _panels.end(); ++i) {
-               (*i)->film_changed (p);
+       BOOST_FOREACH (ContentSubPanel* i, panels()) {
+               i->film_changed (p);
        }
 }
 
 void
-ContentPanel::selection_changed ()
+ContentPanel::item_deselected ()
 {
+       /* Maybe this is just a re-click on the same item; if not, _ignore_deselect will stay
+          false and item_deselected_foo will handle the deselection.
+       */
+       _ignore_deselect = false;
+       signal_manager->when_idle (boost::bind (&ContentPanel::item_deselected_idle, this));
+}
+
+void
+ContentPanel::item_deselected_idle ()
+{
+       if (!_ignore_deselect) {
+               check_selection ();
+       }
+}
+
+void
+ContentPanel::item_selected ()
+{
+       _ignore_deselect = true;
+       check_selection ();
+}
+
+void
+ContentPanel::check_selection ()
+{
+       if (_no_check_selection) {
+               return;
+       }
+
        setup_sensitivity ();
 
-       for (list<ContentSubPanel*>::iterator i = _panels.begin(); i != _panels.end(); ++i) {
-               (*i)->content_selection_changed ();
+       BOOST_FOREACH (ContentSubPanel* i, panels()) {
+               i->content_selection_changed ();
+       }
+
+       optional<DCPTime> go_to;
+       BOOST_FOREACH (shared_ptr<Content> i, selected()) {
+               DCPTime p;
+               p = i->position();
+               if (dynamic_pointer_cast<StringTextFileContent>(i) && i->paths_valid()) {
+                       /* Rather special case; if we select a text subtitle file jump to its
+                          first subtitle.
+                       */
+                       StringTextFile ts (dynamic_pointer_cast<StringTextFileContent>(i));
+                       if (ts.first()) {
+                               p += DCPTime(ts.first().get(), _film->active_frame_rate_change(i->position()));
+                       }
+               }
+               if (!go_to || p < go_to.get()) {
+                       go_to = p;
+               }
+       }
+
+       if (go_to && Config::instance()->jump_to_selected() && signal_manager) {
+               shared_ptr<FilmViewer> fv = _film_viewer.lock ();
+               DCPOMATIC_ASSERT (fv);
+               signal_manager->when_idle(boost::bind(&FilmViewer::seek, fv.get(), go_to.get().ceil(_film->video_frame_rate()), true));
+       }
+
+       if (_timeline_dialog) {
+               _timeline_dialog->set_selection (selected());
+       }
+
+       /* Make required tabs visible */
+
+       if (_notebook->GetPageCount() > 1) {
+               /* There's more than one tab in the notebook so the current selection could be meaningful
+                  to the user; store it so that we can try to restore it later.
+               */
+               _last_selected_tab = 0;
+               if (_notebook->GetSelection() != wxNOT_FOUND) {
+                       _last_selected_tab = _notebook->GetPage(_notebook->GetSelection());
+               }
+       }
+
+       bool have_video = false;
+       bool have_audio = false;
+       bool have_text[TEXT_COUNT] = { false, false };
+       BOOST_FOREACH (shared_ptr<Content> i, selected()) {
+               if (i->video) {
+                       have_video = true;
+               }
+               if (i->audio) {
+                       have_audio = true;
+               }
+               BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
+                       have_text[j->original_type()] = true;
+               }
+       }
+
+       int off = 0;
+
+       if (have_video && !_video_panel) {
+               _video_panel = new VideoPanel (this);
+               _notebook->InsertPage (off, _video_panel, _video_panel->name());
+       } else if (!have_video && _video_panel) {
+               _notebook->DeletePage (off);
+               _video_panel = 0;
+       }
+
+       if (have_video) {
+               ++off;
+       }
+
+       if (have_audio && !_audio_panel) {
+               _audio_panel = new AudioPanel (this);
+               _notebook->InsertPage (off, _audio_panel, _audio_panel->name());
+       } else if (!have_audio && _audio_panel) {
+               _notebook->DeletePage (off);
+               _audio_panel = 0;
        }
+
+       if (have_audio) {
+               ++off;
+       }
+
+       for (int i = 0; i < TEXT_COUNT; ++i) {
+               if (have_text[i] && !_text_panel[i]) {
+                       _text_panel[i] = new TextPanel (this, static_cast<TextType>(i));
+                       _notebook->InsertPage (off, _text_panel[i], _text_panel[i]->name());
+               } else if (!have_text[i] && _text_panel[i]) {
+                       _notebook->DeletePage (off);
+                       _text_panel[i] = 0;
+               }
+               if (have_text[i]) {
+                       ++off;
+               }
+       }
+
+       /* Set up the tab selection */
+
+       bool done = false;
+       for (size_t i = 0; i < _notebook->GetPageCount(); ++i) {
+               if (_notebook->GetPage(i) == _last_selected_tab) {
+                       _notebook->SetSelection (i);
+                       done = true;
+               }
+       }
+
+       if (!done && _notebook->GetPageCount() > 0) {
+               _notebook->SetSelection (0);
+       }
+
+       setup_sensitivity ();
+       SelectionChanged ();
 }
 
 void
@@ -240,14 +428,22 @@ ContentPanel::add_file_clicked ()
        /* This method is also called when Ctrl-A is pressed, so check that our notebook page
           is visible.
        */
-       if (_parent->GetCurrentPage() != _panel) {
+       if (_parent->GetCurrentPage() != _splitter || !_film) {
                return;
        }
 
        /* The wxFD_CHANGE_DIR here prevents a `could not set working directory' error 123 on Windows when using
           non-Latin filenames or paths.
        */
-       wxFileDialog* d = new wxFileDialog (_panel, _("Choose a file or files"), wxT (""), wxT (""), wxT ("*.*"), wxFD_MULTIPLE | wxFD_CHANGE_DIR);
+       wxFileDialog* d = new wxFileDialog (
+               _splitter,
+               _("Choose a file or files"),
+               wxT (""),
+               wxT (""),
+               wxT ("All files|*.*|Subtitle files|*.srt;*.xml|Audio files|*.wav;*.w64;*.flac;*.aif;*.aiff"),
+               wxFD_MULTIPLE | wxFD_CHANGE_DIR
+               );
+
        int const r = d->ShowModal ();
 
        if (r != wxID_OK) {
@@ -269,7 +465,7 @@ ContentPanel::add_file_clicked ()
 void
 ContentPanel::add_folder_clicked ()
 {
-       wxDirDialog* d = new wxDirDialog (_panel, _("Choose a folder"), wxT (""), wxDD_DIR_MUST_EXIST);
+       wxDirDialog* d = new wxDirDialog (_splitter, _("Choose a folder"), wxT(""), wxDD_DIR_MUST_EXIST);
        int r = d->ShowModal ();
        boost::filesystem::path const path (wx_to_std (d->GetPath ()));
        d->Destroy ();
@@ -278,45 +474,91 @@ ContentPanel::add_folder_clicked ()
                return;
        }
 
-       shared_ptr<Content> content = content_factory (_film, path);
+       list<shared_ptr<Content> > content;
+
+       try {
+               content = content_factory (path);
+       } catch (exception& e) {
+               error_dialog (_parent, e.what());
+               return;
+       }
+
+       if (content.empty ()) {
+               error_dialog (_parent, _("No content found in this folder."));
+               return;
+       }
+
+       BOOST_FOREACH (shared_ptr<Content> i, content) {
+               shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (i);
+               if (ic) {
+                       ImageSequenceDialog* e = new ImageSequenceDialog (_splitter);
+                       r = e->ShowModal ();
+                       float const frame_rate = e->frame_rate ();
+                       e->Destroy ();
 
-       shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (content);
-       if (ic) {
-               ImageSequenceDialog* e = new ImageSequenceDialog (_panel);
-               r = e->ShowModal ();
-               float const frame_rate = e->frame_rate ();
-               e->Destroy ();
+                       if (r != wxID_OK) {
+                               return;
+                       }
 
-               if (r != wxID_OK) {
-                       return;
+                       ic->set_video_frame_rate (frame_rate);
                }
 
-               ic->set_video_frame_rate (frame_rate);
+               _film->examine_and_add_content (i);
        }
-
-       _film->examine_and_add_content (content);
 }
 
 void
-ContentPanel::remove_clicked ()
+ContentPanel::add_dcp_clicked ()
+{
+       wxDirDialog* d = new wxDirDialog (_splitter, _("Choose a DCP folder"), wxT(""), wxDD_DIR_MUST_EXIST);
+       int r = d->ShowModal ();
+       boost::filesystem::path const path (wx_to_std (d->GetPath ()));
+       d->Destroy ();
+
+       if (r != wxID_OK) {
+               return;
+       }
+
+       try {
+               _film->examine_and_add_content (shared_ptr<Content> (new DCPContent (path)));
+       } catch (exception& e) {
+               error_dialog (_parent, e.what());
+       }
+}
+
+/** @return true if this remove "click" should be ignored */
+bool
+ContentPanel::remove_clicked (bool hotkey)
 {
-       ContentList c = selected ();
-       if (c.size() == 1) {
-               _film->remove_content (c.front ());
+       /* If the method was called because Delete was pressed check that our notebook page
+          is visible and that the content list is focussed.
+       */
+       if (hotkey && (_parent->GetCurrentPage() != _splitter || !_content->HasFocus())) {
+               return true;
+       }
+
+       BOOST_FOREACH (shared_ptr<Content> i, selected ()) {
+               _film->remove_content (i);
        }
 
-       selection_changed ();
+       check_selection ();
+       return false;
 }
 
 void
 ContentPanel::timeline_clicked ()
 {
+       if (!_film) {
+               return;
+       }
+
        if (_timeline_dialog) {
                _timeline_dialog->Destroy ();
                _timeline_dialog = 0;
        }
 
-       _timeline_dialog = new TimelineDialog (this, _film);
+       _timeline_dialog = new TimelineDialog (this, _film, _film_viewer);
+       _timeline_dialog->set_selection (selected());
        _timeline_dialog->Show ();
 }
 
@@ -332,49 +574,55 @@ ContentPanel::setup_sensitivity ()
 {
        _add_file->Enable (_generally_sensitive);
        _add_folder->Enable (_generally_sensitive);
+       _add_dcp->Enable (_generally_sensitive);
 
        ContentList selection = selected ();
-       VideoContentList video_selection = selected_video ();
-       AudioContentList audio_selection = selected_audio ();
-
-       _remove->Enable   (selection.size() == 1 && _generally_sensitive);
-       _earlier->Enable  (selection.size() == 1 && _generally_sensitive);
-       _later->Enable    (selection.size() == 1 && _generally_sensitive);
-       _timeline->Enable (!_film->content().empty() && _generally_sensitive);
-
-       _video_panel->Enable    (video_selection.size() > 0 && _generally_sensitive);
-       _audio_panel->Enable    (audio_selection.size() > 0 && _generally_sensitive);
-       _subtitle_panel->Enable (selection.size() == 1 && dynamic_pointer_cast<SubtitleContent> (selection.front()) && _generally_sensitive);
-       _timing_panel->Enable   (selection.size() == 1 && _generally_sensitive);
+       ContentList video_selection = selected_video ();
+       ContentList audio_selection = selected_audio ();
+
+       _remove->Enable   (_generally_sensitive && !selection.empty());
+       _earlier->Enable  (_generally_sensitive && selection.size() == 1);
+       _later->Enable    (_generally_sensitive && selection.size() == 1);
+       _timeline->Enable (_generally_sensitive && _film && !_film->content().empty());
+
+       if (_video_panel) {
+               _video_panel->Enable (_generally_sensitive && video_selection.size() > 0);
+       }
+       if (_audio_panel) {
+               _audio_panel->Enable (_generally_sensitive && audio_selection.size() > 0);
+       }
+       for (int i = 0; i < TEXT_COUNT; ++i) {
+               if (_text_panel[i]) {
+                       _text_panel[i]->Enable (_generally_sensitive && selection.size() == 1 && !selection.front()->text.empty());
+               }
+       }
+       _timing_panel->Enable (_generally_sensitive);
 }
 
 void
 ContentPanel::set_film (shared_ptr<Film> film)
 {
+       if (_audio_panel) {
+               _audio_panel->set_film (film);
+       }
+
        _film = film;
 
        film_changed (Film::CONTENT);
        film_changed (Film::AUDIO_CHANNELS);
-       selection_changed ();
+
+       if (_film) {
+               check_selection ();
+       }
+
+       setup_sensitivity ();
 }
 
 void
 ContentPanel::set_general_sensitivity (bool s)
 {
        _generally_sensitive = s;
-
-       _content->Enable (s);
-       _add_file->Enable (s);
-       _add_folder->Enable (s);
-       _remove->Enable (s);
-       _earlier->Enable (s);
-       _later->Enable (s);
-       _timeline->Enable (s);
-
-       /* Set the panels in the content notebook */
-       for (list<ContentSubPanel*>::iterator i = _panels.begin(); i != _panels.end(); ++i) {
-               (*i)->Enable (s);
-       }
+       setup_sensitivity ();
 }
 
 void
@@ -383,7 +631,7 @@ ContentPanel::earlier_clicked ()
        ContentList sel = selected ();
        if (sel.size() == 1) {
                _film->move_content_earlier (sel.front ());
-               selection_changed ();
+               check_selection ();
        }
 }
 
@@ -393,7 +641,7 @@ ContentPanel::later_clicked ()
        ContentList sel = selected ();
        if (sel.size() == 1) {
                _film->move_content_later (sel.front ());
-               selection_changed ();
+               check_selection ();
        }
 }
 
@@ -411,65 +659,73 @@ ContentPanel::set_selection (weak_ptr<Content> wc)
 }
 
 void
-ContentPanel::film_content_changed (int property)
+ContentPanel::set_selection (ContentList cl)
 {
-       if (property == ContentProperty::PATH || property == ContentProperty::POSITION || property == DCPContentProperty::CAN_BE_PLAYED) {
-               setup ();
-       }
+       _no_check_selection = true;
 
-       for (list<ContentSubPanel*>::iterator i = _panels.begin(); i != _panels.end(); ++i) {
-               (*i)->film_content_changed (property);
+       ContentList content = _film->content ();
+       for (size_t i = 0; i < content.size(); ++i) {
+               if (find(cl.begin(), cl.end(), content[i]) != cl.end()) {
+                       _content->SetItemState (i, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
+               } else {
+                       _content->SetItemState (i, 0, wxLIST_STATE_SELECTED);
+               }
        }
+
+       _no_check_selection = false;
+       check_selection ();
 }
 
 void
-ContentPanel::setup ()
+ContentPanel::film_content_changed (int property)
 {
-       ContentList content = _film->content ();
-       sort (content.begin(), content.end(), ContentSorter ());
-
-       /* First, check to see if anything has changed and bail if not; this avoids
-          flickering on OS X.
-       */
+       if (
+               property == ContentProperty::PATH ||
+               property == DCPContentProperty::NEEDS_ASSETS ||
+               property == DCPContentProperty::NEEDS_KDM ||
+               property == DCPContentProperty::NAME
+               ) {
 
-       vector<string> existing;
-       for (int i = 0; i < _content->GetItemCount(); ++i) {
-               existing.push_back (wx_to_std (_content->GetItemText (i)));
+               setup ();
        }
 
-       vector<string> proposed;
-       for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
-               bool const valid = (*i)->paths_valid ();
-
-               string s = (*i)->summary ();
-               if (!valid) {
-                       s = _("MISSING: ") + s;
-               }
-
-               proposed.push_back (s);
+       BOOST_FOREACH (ContentSubPanel* i, panels()) {
+               i->film_content_changed (property);
        }
+}
 
-       if (existing == proposed) {
+void
+ContentPanel::setup ()
+{
+       if (!_film) {
+               _content->DeleteAllItems ();
+               setup_sensitivity ();
                return;
        }
 
-       /* Something has changed: set up the control */
+       ContentList content = _film->content ();
 
-       string selected_summary;
+       Content* selected_content = 0;
        int const s = _content->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
        if (s != -1) {
-               selected_summary = wx_to_std (_content->GetItemText (s));
+               wxListItem item;
+               item.SetId (s);
+               item.SetMask (wxLIST_MASK_DATA);
+               _content->GetItem (item);
+               selected_content = reinterpret_cast<Content*> (item.GetData ());
        }
 
        _content->DeleteAllItems ();
 
-       for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
+       BOOST_FOREACH (shared_ptr<Content> i, content) {
                int const t = _content->GetItemCount ();
-               bool const valid = (*i)->paths_valid ();
-               shared_ptr<DCPContent> dcp = dynamic_pointer_cast<DCPContent> (*i);
-               bool const needs_kdm = dcp && !dcp->can_be_played ();
+               bool const valid = i->paths_valid ();
 
-               string s = (*i)->summary ();
+               shared_ptr<DCPContent> dcp = dynamic_pointer_cast<DCPContent> (i);
+               bool const needs_kdm = dcp && dcp->needs_kdm ();
+               bool const needs_assets = dcp && dcp->needs_assets ();
+
+               wxString s = std_to_wx (i->summary ());
 
                if (!valid) {
                        s = _("MISSING: ") + s;
@@ -479,21 +735,31 @@ ContentPanel::setup ()
                        s = _("NEEDS KDM: ") + s;
                }
 
-               _content->InsertItem (t, std_to_wx (s));
+               if (needs_assets) {
+                       s = _("NEEDS OV: ") + s;
+               }
+
+               wxListItem item;
+               item.SetId (t);
+               item.SetText (s);
+               item.SetData (i.get ());
+               _content->InsertItem (item);
 
-               if ((*i)->summary() == selected_summary) {
+               if (i.get() == selected_content) {
                        _content->SetItemState (t, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
                }
 
-               if (!valid || needs_kdm) {
+               if (!valid || needs_kdm || needs_assets) {
                        _content->SetItemTextColour (t, *wxRED);
                }
        }
 
-       if (selected_summary.empty () && !content.empty ()) {
+       if (!selected_content && !content.empty ()) {
                /* Select the item of content if none was selected before */
                _content->SetItemState (0, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
        }
+
+       setup_sensitivity ();
 }
 
 void
@@ -516,19 +782,40 @@ void
 ContentPanel::add_files (list<boost::filesystem::path> paths)
 {
        /* It has been reported that the paths returned from e.g. wxFileDialog are not always sorted;
-          I can't reproduce that, but sort them anyway.
+          I can't reproduce that, but sort them anyway.  Don't use ImageFilenameSorter as a normal
+          alphabetical sort is expected here.
        */
 
-       paths.sort (ImageFilenameSorter ());
+       paths.sort (CaseInsensitiveSorter ());
 
        /* XXX: check for lots of files here and do something */
 
-       for (list<boost::filesystem::path>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
-               shared_ptr<Content> c = content_factory (_film, *i);
-               shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (c);
-               if (ic) {
-                       ic->set_video_frame_rate (24);
+       try {
+               BOOST_FOREACH (boost::filesystem::path i, paths) {
+                       BOOST_FOREACH (shared_ptr<Content> j, content_factory(i)) {
+                               _film->examine_and_add_content (j);
+                       }
+               }
+       } catch (exception& e) {
+               error_dialog (_parent, e.what());
+       }
+}
+
+list<ContentSubPanel*>
+ContentPanel::panels () const
+{
+       list<ContentSubPanel*> p;
+       if (_video_panel) {
+               p.push_back (_video_panel);
+       }
+       if (_audio_panel) {
+               p.push_back (_audio_panel);
+       }
+       for (int i = 0; i < TEXT_COUNT; ++i) {
+               if (_text_panel[i]) {
+                       p.push_back (_text_panel[i]);
                }
-               _film->examine_and_add_content (c);
        }
+       p.push_back (_timing_panel);
+       return p;
 }