Be a little more careful to handle exceptions from boost::filesystem::file_size
[dcpomatic.git] / src / wx / config_dialog.cc
index 30585f4e341ece1af0cb9441a98dc9d0c98d3554..e0effec53eafb90a25d2ff2e966f9d92f90406d7 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
 */
 
 #include "config_dialog.h"
+#include "static_text.h"
+#include "check_box.h"
 #include "nag_dialog.h"
-
+#include "dcpomatic_button.h"
+#include "audio_mapping_view.h"
+#include <dcp/raw_convert.h>
+#include <iostream>
+
+using std::string;
+using std::vector;
+using std::pair;
+using std::make_pair;
+using std::map;
+using std::make_shared;
 using boost::bind;
+using boost::optional;
+using std::shared_ptr;
+using std::function;
+#if BOOST_VERSION >= 106100
+using namespace boost::placeholders;
+#endif
 
 static
-void
+bool
 do_nothing ()
 {
-
+       return false;
 }
 
 Page::Page (wxSize panel_size, int border)
@@ -36,21 +54,29 @@ Page::Page (wxSize panel_size, int border)
        , _panel_size (panel_size)
        , _window_exists (false)
 {
-       _config_connection = Config::instance()->Changed.connect (boost::bind (&Page::config_changed_wrapper, this));
+       _config_connection = Config::instance()->Changed.connect (bind (&Page::config_changed_wrapper, this));
 }
 
+
+wxWindow*
+Page::CreateWindow (wxWindow* parent)
+{
+       return create_window (parent);
+}
+
+
 wxWindow*
 Page::create_window (wxWindow* parent)
 {
        _panel = new wxPanel (parent, wxID_ANY, wxDefaultPosition, _panel_size);
-       wxBoxSizer* s = new wxBoxSizer (wxVERTICAL);
+       auto s = new wxBoxSizer (wxVERTICAL);
        _panel->SetSizer (s);
 
        setup ();
        _window_exists = true;
        config_changed ();
 
-       _panel->Bind (wxEVT_DESTROY, boost::bind (&Page::window_destroyed, this));
+       _panel->Bind (wxEVT_DESTROY, bind (&Page::window_destroyed, this));
 
        return _panel;
 }
@@ -70,65 +96,49 @@ Page::window_destroyed ()
 }
 
 
-StockPage::StockPage (Kind kind, wxSize panel_size, int border)
-       : wxStockPreferencesPage (kind)
-       , Page (panel_size, border)
-{
-
-}
-
-wxWindow*
-StockPage::CreateWindow (wxWindow* parent)
-{
-       return create_window (parent);
-}
-
-StandardPage::StandardPage (wxSize panel_size, int border)
+GeneralPage::GeneralPage (wxSize panel_size, int border)
        : Page (panel_size, border)
 {
 
 }
 
-wxWindow*
-StandardPage::CreateWindow (wxWindow* parent)
-{
-       return create_window (parent);
-}
 
-GeneralPage::GeneralPage (wxSize panel_size, int border)
-       : StockPage (Kind_General, panel_size, border)
+wxString
+GeneralPage::GetName () const
 {
-
+       return _("General");
 }
 
+
 void
 GeneralPage::add_language_controls (wxGridBagSizer* table, int& r)
 {
-       _set_language = new wxCheckBox (_panel, wxID_ANY, _("Set language"));
-       table->Add (_set_language, wxGBPosition (r, 0));
+       _set_language = new CheckBox (_panel, _("Set language"));
+       table->Add (_set_language, wxGBPosition (r, 0), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
        _language = new wxChoice (_panel, wxID_ANY);
-       std::vector<std::pair<std::string, std::string> > languages;
-       languages.push_back (std::make_pair ("Čeština", "cs_CZ"));
-       languages.push_back (std::make_pair ("汉语/漢語", "zh_CN"));
-       languages.push_back (std::make_pair ("Dansk", "da_DK"));
-       languages.push_back (std::make_pair ("Deutsch", "de_DE"));
-       languages.push_back (std::make_pair ("English", "en_GB"));
-       languages.push_back (std::make_pair ("Español", "es_ES"));
-       languages.push_back (std::make_pair ("Français", "fr_FR"));
-       languages.push_back (std::make_pair ("Italiano", "it_IT"));
-       languages.push_back (std::make_pair ("Nederlands", "nl_NL"));
-       languages.push_back (std::make_pair ("Русский", "ru_RU"));
-       languages.push_back (std::make_pair ("Polski", "pl_PL"));
-       languages.push_back (std::make_pair ("Português europeu", "pt_PT"));
-       languages.push_back (std::make_pair ("Português do Brasil", "pt_BR"));
-       languages.push_back (std::make_pair ("Svenska", "sv_SE"));
-       languages.push_back (std::make_pair ("Slovenský jazyk", "sk_SK"));
-       languages.push_back (std::make_pair ("українська мова", "uk_UA"));
+       vector<pair<string, string>> languages;
+       languages.push_back (make_pair("Čeština", "cs_CZ"));
+       languages.push_back (make_pair("汉语/漢語", "zh_CN"));
+       languages.push_back (make_pair("Dansk", "da_DK"));
+       languages.push_back (make_pair("Deutsch", "de_DE"));
+       languages.push_back (make_pair("English", "en_GB"));
+       languages.push_back (make_pair("Español", "es_ES"));
+       languages.push_back (make_pair("Français", "fr_FR"));
+       languages.push_back (make_pair("Italiano", "it_IT"));
+       languages.push_back (make_pair("Nederlands", "nl_NL"));
+       languages.push_back (make_pair("Русский", "ru_RU"));
+       languages.push_back (make_pair("Polski", "pl_PL"));
+       languages.push_back (make_pair("Português europeu", "pt_PT"));
+       languages.push_back (make_pair("Português do Brasil", "pt_BR"));
+       languages.push_back (make_pair("Svenska", "sv_SE"));
+       languages.push_back (make_pair("Slovenský jazyk", "sk_SK"));
+       languages.push_back (make_pair("Türkçe", "tr_TR"));
+       languages.push_back (make_pair("українська мова", "uk_UA"));
        checked_set (_language, languages);
        table->Add (_language, wxGBPosition (r, 1));
        ++r;
 
-       wxStaticText* restart = add_label_to_sizer (
+       auto restart = add_label_to_sizer (
                table, _panel, _("(restart DCP-o-matic to see language changes)"), false, wxGBPosition (r, 0), wxGBSpan (1, 2)
                );
        wxFont font = restart->GetFont();
@@ -137,56 +147,35 @@ GeneralPage::add_language_controls (wxGridBagSizer* table, int& r)
        restart->SetFont (font);
        ++r;
 
-       _set_language->Bind (wxEVT_CHECKBOX, boost::bind (&GeneralPage::set_language_changed, this));
-       _language->Bind     (wxEVT_CHOICE,   boost::bind (&GeneralPage::language_changed,     this));
-}
-
-void
-GeneralPage::add_play_sound_controls (wxGridBagSizer* table, int& r)
-{
-       _sound = new wxCheckBox (_panel, wxID_ANY, _("Play sound via"));
-       table->Add (_sound, wxGBPosition (r, 0));
-       _sound_output = new wxChoice (_panel, wxID_ANY);
-       table->Add (_sound_output, wxGBPosition (r, 1));
-       ++r;
-
-       RtAudio audio (DCPOMATIC_RTAUDIO_API);
-       for (unsigned int i = 0; i < audio.getDeviceCount(); ++i) {
-               RtAudio::DeviceInfo dev = audio.getDeviceInfo (i);
-               if (dev.probed && dev.outputChannels > 0) {
-                       _sound_output->Append (std_to_wx (dev.name));
-               }
-       }
-
-       _sound->Bind        (wxEVT_CHECKBOX, boost::bind (&GeneralPage::sound_changed, this));
-       _sound_output->Bind (wxEVT_CHOICE,   boost::bind (&GeneralPage::sound_output_changed, this));
+       _set_language->Bind (wxEVT_CHECKBOX, bind (&GeneralPage::set_language_changed, this));
+       _language->Bind     (wxEVT_CHOICE,   bind (&GeneralPage::language_changed,     this));
 }
 
 void
 GeneralPage::add_update_controls (wxGridBagSizer* table, int& r)
 {
-       _check_for_updates = new wxCheckBox (_panel, wxID_ANY, _("Check for updates on startup"));
+       _check_for_updates = new CheckBox (_panel, _("Check for updates on startup"));
        table->Add (_check_for_updates, wxGBPosition (r, 0), wxGBSpan (1, 2));
        ++r;
 
-       _check_for_test_updates = new wxCheckBox (_panel, wxID_ANY, _("Check for testing updates on startup"));
+       _check_for_test_updates = new CheckBox (_panel, _("Check for testing updates on startup"));
        table->Add (_check_for_test_updates, wxGBPosition (r, 0), wxGBSpan (1, 2));
        ++r;
 
-       _check_for_updates->Bind (wxEVT_CHECKBOX, boost::bind (&GeneralPage::check_for_updates_changed, this));
-       _check_for_test_updates->Bind (wxEVT_CHECKBOX, boost::bind (&GeneralPage::check_for_test_updates_changed, this));
+       _check_for_updates->Bind (wxEVT_CHECKBOX, bind (&GeneralPage::check_for_updates_changed, this));
+       _check_for_test_updates->Bind (wxEVT_CHECKBOX, bind (&GeneralPage::check_for_test_updates_changed, this));
 }
 
 void
 GeneralPage::config_changed ()
 {
-       Config* config = Config::instance ();
+       auto config = Config::instance ();
 
        checked_set (_set_language, static_cast<bool>(config->language()));
 
        /* Backwards compatibility of config file */
 
-       std::map<std::string, std::string> compat_map;
+       map<string, string> compat_map;
        compat_map["fr"] = "fr_FR";
        compat_map["it"] = "it_IT";
        compat_map["es"] = "es_ES";
@@ -201,8 +190,8 @@ GeneralPage::config_changed ()
        compat_map["cs"] = "cs_CZ";
        compat_map["uk"] = "uk_UA";
 
-       std::string lang = config->language().get_value_or ("en_GB");
-       if (compat_map.find (lang) != compat_map.end ()) {
+       auto lang = config->language().get_value_or("en_GB");
+       if (compat_map.find(lang) != compat_map.end ()) {
                lang = compat_map[lang];
        }
 
@@ -211,35 +200,6 @@ GeneralPage::config_changed ()
        checked_set (_check_for_updates, config->check_for_updates ());
        checked_set (_check_for_test_updates, config->check_for_test_updates ());
 
-       checked_set (_sound, config->sound ());
-
-       boost::optional<std::string> const current_so = get_sound_output ();
-       boost::optional<std::string> configured_so;
-
-       if (config->sound_output()) {
-               configured_so = config->sound_output().get();
-       } else {
-               /* No configured output means we should use the default */
-               RtAudio audio (DCPOMATIC_RTAUDIO_API);
-               try {
-                       configured_so = audio.getDeviceInfo(audio.getDefaultOutputDevice()).name;
-               } catch (RtAudioError& e) {
-                       /* Probably no audio devices at all */
-               }
-       }
-
-       if (configured_so && current_so != configured_so) {
-               /* Update _sound_output with the configured value */
-               unsigned int i = 0;
-               while (i < _sound_output->GetCount()) {
-                       if (_sound_output->GetString(i) == std_to_wx(*configured_so)) {
-                               _sound_output->SetSelection (i);
-                               break;
-                       }
-                       ++i;
-               }
-       }
-
        setup_sensitivity ();
 }
 
@@ -248,19 +208,6 @@ GeneralPage::setup_sensitivity ()
 {
        _language->Enable (_set_language->GetValue ());
        _check_for_test_updates->Enable (_check_for_updates->GetValue ());
-       _sound_output->Enable (_sound->GetValue ());
-}
-
-/** @return Currently-selected preview sound output in the dialogue */
-boost::optional<std::string>
-GeneralPage::get_sound_output ()
-{
-       int const sel = _sound_output->GetSelection ();
-       if (sel == wxNOT_FOUND) {
-               return boost::optional<std::string> ();
-       }
-
-       return wx_to_std (_sound_output->GetString (sel));
 }
 
 void
@@ -297,50 +244,23 @@ GeneralPage::check_for_test_updates_changed ()
        Config::instance()->set_check_for_test_updates (_check_for_test_updates->GetValue ());
 }
 
-void
-GeneralPage::sound_changed ()
-{
-       Config::instance()->set_sound (_sound->GetValue ());
-}
-
-void
-GeneralPage::sound_output_changed ()
-{
-       RtAudio audio (DCPOMATIC_RTAUDIO_API);
-       boost::optional<std::string> const so = get_sound_output();
-       if (!so || *so == audio.getDeviceInfo(audio.getDefaultOutputDevice()).name) {
-               Config::instance()->unset_sound_output ();
-       } else {
-               Config::instance()->set_sound_output (*so);
-       }
-}
-
 CertificateChainEditor::CertificateChainEditor (
        wxWindow* parent,
        wxString title,
        int border,
-       boost::function<void (boost::shared_ptr<dcp::CertificateChain>)> set,
-       boost::function<boost::shared_ptr<const dcp::CertificateChain> (void)> get,
-       boost::function<void (void)> nag_remake
+       function<void (shared_ptr<dcp::CertificateChain>)> set,
+       function<shared_ptr<const dcp::CertificateChain> (void)> get,
+       function<bool (void)> nag_alter
        )
-       : wxPanel (parent)
+       : wxDialog (parent, wxID_ANY, title)
        , _set (set)
        , _get (get)
-       , _nag_remake (nag_remake)
+       , _nag_alter (nag_alter)
 {
-       wxFont subheading_font (*wxNORMAL_FONT);
-       subheading_font.SetWeight (wxFONTWEIGHT_BOLD);
-
        _sizer = new wxBoxSizer (wxVERTICAL);
 
-       {
-               wxStaticText* m = new wxStaticText (this, wxID_ANY, title);
-               m->SetFont (subheading_font);
-               _sizer->Add (m, 0, wxALL, border);
-       }
-
-       wxBoxSizer* certificates_sizer = new wxBoxSizer (wxHORIZONTAL);
-       _sizer->Add (certificates_sizer, 0, wxLEFT | wxRIGHT, border);
+       auto certificates_sizer = new wxBoxSizer (wxHORIZONTAL);
+       _sizer->Add (certificates_sizer, 0, wxALL, border);
 
        _certificates = new wxListCtrl (this, wxID_ANY, wxDefaultPosition, wxSize (440, 150), wxLC_REPORT | wxLC_SINGLE_SEL);
 
@@ -368,62 +288,63 @@ CertificateChainEditor::CertificateChainEditor (
        certificates_sizer->Add (_certificates, 1, wxEXPAND);
 
        {
-               wxSizer* s = new wxBoxSizer (wxVERTICAL);
-               _add_certificate = new wxButton (this, wxID_ANY, _("Add..."));
-               s->Add (_add_certificate, 0, wxTOP | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
-               _remove_certificate = new wxButton (this, wxID_ANY, _("Remove"));
-               s->Add (_remove_certificate, 0, wxTOP | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
-               _export_certificate = new wxButton (this, wxID_ANY, _("Export"));
-               s->Add (_export_certificate, 0, wxTOP | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
+               auto s = new wxBoxSizer (wxVERTICAL);
+               _add_certificate = new Button (this, _("Add..."));
+               s->Add (_add_certificate, 1, wxTOP | wxBOTTOM | wxEXPAND, DCPOMATIC_BUTTON_STACK_GAP);
+               _remove_certificate = new Button (this, _("Remove"));
+               s->Add (_remove_certificate, 1, wxTOP | wxBOTTOM | wxEXPAND, DCPOMATIC_BUTTON_STACK_GAP);
+               _export_certificate = new Button (this, _("Export certificate..."));
+               s->Add (_export_certificate, 1, wxTOP | wxBOTTOM | wxEXPAND, DCPOMATIC_BUTTON_STACK_GAP);
+               _export_chain = new Button (this, _("Export chain..."));
+               s->Add (_export_chain, 1, wxTOP | wxBOTTOM | wxEXPAND, DCPOMATIC_BUTTON_STACK_GAP);
                certificates_sizer->Add (s, 0, wxLEFT, DCPOMATIC_SIZER_X_GAP);
        }
 
-       wxGridBagSizer* table = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
+       auto table = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
        _sizer->Add (table, 1, wxALL | wxEXPAND, border);
        int r = 0;
 
        add_label_to_sizer (table, this, _("Leaf private key"), true, wxGBPosition (r, 0));
-       _private_key = new wxStaticText (this, wxID_ANY, wxT (""));
+       _private_key = new StaticText (this, wxT(""));
        wxFont font = _private_key->GetFont ();
        font.SetFamily (wxFONTFAMILY_TELETYPE);
        _private_key->SetFont (font);
        table->Add (_private_key, wxGBPosition (r, 1), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
-       _load_private_key = new wxButton (this, wxID_ANY, _("Load..."));
-       table->Add (_load_private_key, wxGBPosition (r, 2));
-       _export_private_key = new wxButton (this, wxID_ANY, _("Export..."));
+       _import_private_key = new Button (this, _("Import..."));
+       table->Add (_import_private_key, wxGBPosition (r, 2));
+       _export_private_key = new Button (this, _("Export..."));
        table->Add (_export_private_key, wxGBPosition (r, 3));
        ++r;
 
        _button_sizer = new wxBoxSizer (wxHORIZONTAL);
-       _remake_certificates = new wxButton (this, wxID_ANY, _("Re-make certificates\nand key..."));
+       _remake_certificates = new Button (this, _("Re-make certificates and key..."));
        _button_sizer->Add (_remake_certificates, 1, wxRIGHT, border);
        table->Add (_button_sizer, wxGBPosition (r, 0), wxGBSpan (1, 4));
        ++r;
 
-       _private_key_bad = new wxStaticText (this, wxID_ANY, _("Leaf private key does not match leaf certificate!"));
+       _private_key_bad = new StaticText (this, _("Leaf private key does not match leaf certificate!"));
        font = *wxSMALL_FONT;
        font.SetWeight (wxFONTWEIGHT_BOLD);
        _private_key_bad->SetFont (font);
        table->Add (_private_key_bad, wxGBPosition (r, 0), wxGBSpan (1, 3));
        ++r;
 
-       _add_certificate->Bind     (wxEVT_BUTTON,       boost::bind (&CertificateChainEditor::add_certificate, this));
-       _remove_certificate->Bind  (wxEVT_BUTTON,       boost::bind (&CertificateChainEditor::remove_certificate, this));
-       _export_certificate->Bind  (wxEVT_BUTTON,       boost::bind (&CertificateChainEditor::export_certificate, this));
-       _certificates->Bind        (wxEVT_LIST_ITEM_SELECTED,   boost::bind (&CertificateChainEditor::update_sensitivity, this));
-       _certificates->Bind        (wxEVT_LIST_ITEM_DESELECTED, boost::bind (&CertificateChainEditor::update_sensitivity, this));
-       _remake_certificates->Bind (wxEVT_BUTTON,       boost::bind (&CertificateChainEditor::remake_certificates, this));
-       _load_private_key->Bind    (wxEVT_BUTTON,       boost::bind (&CertificateChainEditor::load_private_key, this));
-       _export_private_key->Bind  (wxEVT_BUTTON,       boost::bind (&CertificateChainEditor::export_private_key, this));
+       _add_certificate->Bind     (wxEVT_BUTTON,       bind (&CertificateChainEditor::add_certificate, this));
+       _remove_certificate->Bind  (wxEVT_BUTTON,       bind (&CertificateChainEditor::remove_certificate, this));
+       _export_certificate->Bind  (wxEVT_BUTTON,       bind (&CertificateChainEditor::export_certificate, this));
+       _certificates->Bind        (wxEVT_LIST_ITEM_SELECTED,   bind (&CertificateChainEditor::update_sensitivity, this));
+       _certificates->Bind        (wxEVT_LIST_ITEM_DESELECTED, bind (&CertificateChainEditor::update_sensitivity, this));
+       _remake_certificates->Bind (wxEVT_BUTTON,       bind (&CertificateChainEditor::remake_certificates, this));
+       _export_chain->Bind        (wxEVT_BUTTON,       bind (&CertificateChainEditor::export_chain, this));
+       _import_private_key->Bind  (wxEVT_BUTTON,       bind (&CertificateChainEditor::import_private_key, this));
+       _export_private_key->Bind  (wxEVT_BUTTON,       bind (&CertificateChainEditor::export_private_key, this));
+
+       auto buttons = CreateSeparatedButtonSizer (wxCLOSE);
+       if (buttons) {
+               _sizer->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
+       }
 
        SetSizerAndFit (_sizer);
-}
-
-
-void
-CertificateChainEditor::config_changed ()
-{
-       _chain.reset (new dcp::CertificateChain (*_get().get ()));
 
        update_certificate_list ();
        update_private_key ();
@@ -440,16 +361,16 @@ CertificateChainEditor::add_button (wxWindow* button)
 void
 CertificateChainEditor::add_certificate ()
 {
-       wxFileDialog* d = new wxFileDialog (this, _("Select Certificate File"));
+       auto d = new wxFileDialog (this, _("Select Certificate File"));
 
        if (d->ShowModal() == wxID_OK) {
                try {
                        dcp::Certificate c;
-                       std::string extra;
+                       string extra;
                        try {
                                extra = c.read_string (dcp::file_to_string (wx_to_std (d->GetPath ())));
                        } catch (boost::filesystem::filesystem_error& e) {
-                               error_dialog (this, wxString::Format (_("Could not load certificate (%s)"), d->GetPath().data()));
+                               error_dialog (this, _("Could not import certificate (%s)"), d->GetPath());
                                d->Destroy ();
                                return;
                        }
@@ -461,20 +382,21 @@ CertificateChainEditor::add_certificate ()
                                          "Only the first certificate will be used.")
                                        );
                        }
-                       _chain->add (c);
-                       if (!_chain->chain_valid ()) {
+                       auto chain = make_shared<dcp::CertificateChain>(*_get().get());
+                       chain->add (c);
+                       if (!chain->chain_valid ()) {
                                error_dialog (
                                        this,
                                        _("Adding this certificate would make the chain inconsistent, so it will not be added. "
                                          "Add certificates in order from root to intermediate to leaf.")
                                        );
-                               _chain->remove (c);
+                               chain->remove (c);
                        } else {
-                               _set (_chain);
+                               _set (chain);
                                update_certificate_list ();
                        }
                } catch (dcp::MiscError& e) {
-                       error_dialog (this, wxString::Format (_("Could not read certificate file (%s)"), e.what ()));
+                       error_dialog (this, _("Could not read certificate file."), std_to_wx(e.what()));
                }
        }
 
@@ -486,16 +408,23 @@ CertificateChainEditor::add_certificate ()
 void
 CertificateChainEditor::remove_certificate ()
 {
+       if (_nag_alter()) {
+               /* Cancel was clicked */
+               return;
+       }
+
        int i = _certificates->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
        if (i == -1) {
                return;
        }
 
        _certificates->DeleteItem (i);
-       _chain->remove (i);
-       _set (_chain);
+       auto chain = make_shared<dcp::CertificateChain>(*_get().get());
+       chain->remove (i);
+       _set (chain);
 
        update_sensitivity ();
+       update_certificate_list ();
 }
 
 void
@@ -506,37 +435,77 @@ CertificateChainEditor::export_certificate ()
                return;
        }
 
-       wxFileDialog* d = new wxFileDialog (
-               this, _("Select Certificate File"), wxEmptyString, wxEmptyString, wxT ("PEM files (*.pem)|*.pem"),
+       auto all = _get()->root_to_leaf();
+
+       wxString default_name;
+       if (i == 0) {
+               default_name = "root.pem";
+       } else if (i == static_cast<int>(all.size() - 1)) {
+               default_name = "leaf.pem";
+       } else {
+               default_name = "intermediate.pem";
+       }
+
+       auto d = new wxFileDialog(
+               this, _("Select Certificate File"), wxEmptyString, default_name, wxT ("PEM files (*.pem)|*.pem"),
                wxFD_SAVE | wxFD_OVERWRITE_PROMPT
                );
 
-       dcp::CertificateChain::List all = _chain->root_to_leaf ();
-       dcp::CertificateChain::List::iterator j = all.begin ();
+       auto j = all.begin ();
        for (int k = 0; k < i; ++k) {
                ++j;
        }
 
        if (d->ShowModal () == wxID_OK) {
-               FILE* f = fopen_boost (wx_to_std (d->GetPath ()), "w");
+               boost::filesystem::path path (wx_to_std(d->GetPath()));
+               if (path.extension() != ".pem") {
+                       path += ".pem";
+               }
+               auto f = fopen_boost (path, "w");
                if (!f) {
-                       throw OpenFileError (wx_to_std (d->GetPath ()), errno, false);
+                       throw OpenFileError (path, errno, OpenFileError::WRITE);
                }
 
-               std::string const s = j->certificate (true);
-               fwrite (s.c_str(), 1, s.length(), f);
+               string const s = j->certificate (true);
+               checked_fwrite (s.c_str(), s.length(), f, path);
                fclose (f);
        }
        d->Destroy ();
 }
 
+void
+CertificateChainEditor::export_chain ()
+{
+       auto d = new wxFileDialog (
+               this, _("Select Chain File"), wxEmptyString, wxT("certificate_chain.pem"), wxT("PEM files (*.pem)|*.pem"),
+               wxFD_SAVE | wxFD_OVERWRITE_PROMPT
+               );
+
+       if (d->ShowModal () == wxID_OK) {
+               boost::filesystem::path path (wx_to_std(d->GetPath()));
+               if (path.extension() != ".pem") {
+                       path += ".pem";
+               }
+               auto f = fopen_boost (path, "w");
+               if (!f) {
+                       throw OpenFileError (path, errno, OpenFileError::WRITE);
+               }
+
+               auto const s = _get()->chain();
+               checked_fwrite (s.c_str(), s.length(), f, path);
+               fclose (f);
+       }
+
+       d->Destroy ();
+}
+
 void
 CertificateChainEditor::update_certificate_list ()
 {
        _certificates->DeleteAllItems ();
        size_t n = 0;
-       dcp::CertificateChain::List certs = _chain->root_to_leaf ();
-       BOOST_FOREACH (dcp::Certificate const & i, certs) {
+       auto certs = _get()->root_to_leaf();
+       for (auto const& i: certs) {
                wxListItem item;
                item.SetId (n);
                _certificates->InsertItem (item);
@@ -555,7 +524,7 @@ CertificateChainEditor::update_certificate_list ()
 
        static wxColour normal = _private_key_bad->GetForegroundColour ();
 
-       if (_chain->private_key_valid ()) {
+       if (_get()->private_key_valid()) {
                _private_key_bad->Hide ();
                _private_key_bad->SetForegroundColour (normal);
        } else {
@@ -567,15 +536,15 @@ CertificateChainEditor::update_certificate_list ()
 void
 CertificateChainEditor::remake_certificates ()
 {
-       boost::shared_ptr<const dcp::CertificateChain> chain = _get ();
+       auto chain = _get();
 
-       std::string subject_organization_name;
-       std::string subject_organizational_unit_name;
-       std::string root_common_name;
-       std::string intermediate_common_name;
-       std::string leaf_common_name;
+       string subject_organization_name;
+       string subject_organizational_unit_name;
+       string root_common_name;
+       string intermediate_common_name;
+       string leaf_common_name;
 
-       dcp::CertificateChain::List all = chain->root_to_leaf ();
+       auto all = chain->root_to_leaf ();
 
        if (all.size() >= 1) {
                /* Have a root */
@@ -596,9 +565,12 @@ CertificateChainEditor::remake_certificates ()
                intermediate_common_name = i->subject_common_name ();
        }
 
-       _nag_remake ();
+       if (_nag_alter()) {
+               /* Cancel was clicked */
+               return;
+       }
 
-       MakeChainDialog* d = new MakeChainDialog (
+       auto d = new MakeChainDialog (
                this,
                subject_organization_name,
                subject_organizational_unit_name,
@@ -608,8 +580,8 @@ CertificateChainEditor::remake_certificates ()
                );
 
        if (d->ShowModal () == wxID_OK) {
-               _chain.reset (
-                       new dcp::CertificateChain (
+               _set (
+                       make_shared<dcp::CertificateChain> (
                                openssl_path (),
                                d->organisation (),
                                d->organisational_unit (),
@@ -619,7 +591,6 @@ CertificateChainEditor::remake_certificates ()
                                )
                        );
 
-               _set (_chain);
                update_certificate_list ();
                update_private_key ();
        }
@@ -631,21 +602,21 @@ void
 CertificateChainEditor::update_sensitivity ()
 {
        /* We can only remove the leaf certificate */
-       _remove_certificate->Enable (_certificates->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED) == (_certificates->GetItemCount() - 1));
-       _export_certificate->Enable (_certificates->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED) != -1);
+       _remove_certificate->Enable (_certificates->GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED) == (_certificates->GetItemCount() - 1));
+       _export_certificate->Enable (_certificates->GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED) != -1);
 }
 
 void
 CertificateChainEditor::update_private_key ()
 {
-       checked_set (_private_key, dcp::private_key_fingerprint (_chain->key().get ()));
+       checked_set (_private_key, dcp::private_key_fingerprint (_get()->key().get()));
        _sizer->Layout ();
 }
 
 void
-CertificateChainEditor::load_private_key ()
+CertificateChainEditor::import_private_key ()
 {
-       wxFileDialog* d = new wxFileDialog (this, _("Select Key File"));
+       auto d = new wxFileDialog (this, _("Select Key File"));
 
        if (d->ShowModal() == wxID_OK) {
                try {
@@ -658,11 +629,12 @@ CertificateChainEditor::load_private_key ()
                                return;
                        }
 
-                       _chain->set_key (dcp::file_to_string (p));
-                       _set (_chain);
+                       auto chain = make_shared<dcp::CertificateChain>(*_get().get());
+                       chain->set_key (dcp::file_to_string (p));
+                       _set (chain);
                        update_private_key ();
-               } catch (dcp::MiscError& e) {
-                       error_dialog (this, wxString::Format (_("Could not read certificate file (%s)"), e.what ()));
+               } catch (std::exception& e) {
+                       error_dialog (this, _("Could not read certificate file."), std_to_wx(e.what()));
                }
        }
 
@@ -674,24 +646,28 @@ CertificateChainEditor::load_private_key ()
 void
 CertificateChainEditor::export_private_key ()
 {
-       boost::optional<std::string> key = _chain->key ();
+       auto key = _get()->key();
        if (!key) {
                return;
        }
 
-       wxFileDialog* d = new wxFileDialog (
-               this, _("Select Key File"), wxEmptyString, wxEmptyString, wxT ("PEM files (*.pem)|*.pem"),
+       auto d = new wxFileDialog (
+               this, _("Select Key File"), wxEmptyString, wxT("private_key.pem"), wxT("PEM files (*.pem)|*.pem"),
                wxFD_SAVE | wxFD_OVERWRITE_PROMPT
                );
 
        if (d->ShowModal () == wxID_OK) {
-               FILE* f = fopen_boost (wx_to_std (d->GetPath ()), "w");
+               boost::filesystem::path path (wx_to_std(d->GetPath()));
+               if (path.extension() != ".pem") {
+                       path += ".pem";
+               }
+               auto f = fopen_boost (path, "w");
                if (!f) {
-                       throw OpenFileError (wx_to_std (d->GetPath ()), errno, false);
+                       throw OpenFileError (path, errno, OpenFileError::WRITE);
                }
 
-               std::string const s = _chain->key().get ();
-               fwrite (s.c_str(), 1, s.length(), f);
+               auto const s = _get()->key().get ();
+               checked_fwrite (s.c_str(), s.length(), f, path);
                fclose (f);
        }
        d->Destroy ();
@@ -706,92 +682,467 @@ KeysPage::GetName () const
 void
 KeysPage::setup ()
 {
-       if (_sign) {
-               _signer = new CertificateChainEditor (
-                       _panel, _("Signing DCPs and KDMs"), _border,
-                       bind (&Config::set_signer_chain, Config::instance (), _1),
-                       bind (&Config::signer_chain, Config::instance ()),
-                       bind (&do_nothing)
-                       );
+       wxFont subheading_font (*wxNORMAL_FONT);
+       subheading_font.SetWeight (wxFONTWEIGHT_BOLD);
+
+       auto sizer = _panel->GetSizer();
 
-               _panel->GetSizer()->Add (_signer);
+       {
+               auto m = new StaticText (_panel, _("Decrypting KDMs"));
+               m->SetFont (subheading_font);
+               sizer->Add (m, 0, wxALL | wxEXPAND, _border);
        }
 
-       _decryption = new CertificateChainEditor (
-               _panel, _("Decrypting KDMs"), _border,
-               bind (&Config::set_decryption_chain, Config::instance (), _1),
-               bind (&Config::decryption_chain, Config::instance ()),
-               bind (&KeysPage::nag_remake_decryption_chain, this)
-               );
+       auto buttons = new wxBoxSizer (wxVERTICAL);
+
+       auto export_decryption_certificate = new Button (_panel, _("Export KDM decryption leaf certificate..."));
+       buttons->Add (export_decryption_certificate, 0, wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
+       auto export_settings = new Button (_panel, _("Export all KDM decryption settings..."));
+       buttons->Add (export_settings, 0, wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
+       auto import_settings = new Button (_panel, _("Import all KDM decryption settings..."));
+       buttons->Add (import_settings, 0, wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
+       auto decryption_advanced = new Button (_panel, _("Advanced..."));
+       buttons->Add (decryption_advanced, 0);
 
-       _panel->GetSizer()->Add (_decryption);
+       sizer->Add (buttons, 0, wxLEFT, _border);
 
-       _export_decryption_certificate = new wxButton (_decryption, wxID_ANY, _("Export KDM decryption\ncertificate..."));
-       _decryption->add_button (_export_decryption_certificate);
-       _export_decryption_chain = new wxButton (_decryption, wxID_ANY, _("Export KDM decryption\nchain..."));
-       _decryption->add_button (_export_decryption_chain);
+       export_decryption_certificate->Bind (wxEVT_BUTTON, bind (&KeysPage::export_decryption_certificate, this));
+       export_settings->Bind (wxEVT_BUTTON, bind (&KeysPage::export_decryption_chain_and_key, this));
+       import_settings->Bind (wxEVT_BUTTON, bind (&KeysPage::import_decryption_chain_and_key, this));
+       decryption_advanced->Bind (wxEVT_BUTTON, bind (&KeysPage::decryption_advanced, this));
 
-       _export_decryption_certificate->Bind (wxEVT_BUTTON, bind (&KeysPage::export_decryption_certificate, this));
-       _export_decryption_chain->Bind (wxEVT_BUTTON, bind (&KeysPage::export_decryption_chain, this));
+       {
+               auto m = new StaticText (_panel, _("Signing DCPs and KDMs"));
+               m->SetFont (subheading_font);
+               sizer->Add (m, 0, wxALL | wxEXPAND, _border);
+       }
+
+       auto signing_advanced = new Button (_panel, _("Advanced..."));
+       sizer->Add (signing_advanced, 0, wxLEFT | wxBOTTOM, _border);
+       signing_advanced->Bind (wxEVT_BUTTON, bind (&KeysPage::signing_advanced, this));
 }
 
 void
-KeysPage::config_changed ()
+KeysPage::decryption_advanced ()
 {
-       if (_sign) {
-               _signer->config_changed ();
-       }
-       _decryption->config_changed ();
+       auto c = new CertificateChainEditor (
+               _panel, _("Decrypting KDMs"), _border,
+               bind(&Config::set_decryption_chain, Config::instance(), _1),
+               bind(&Config::decryption_chain, Config::instance()),
+               bind(&KeysPage::nag_alter_decryption_chain, this)
+               );
+
+       c->ShowModal();
 }
 
 void
-KeysPage::nag_remake_decryption_chain ()
+KeysPage::signing_advanced ()
 {
-       NagDialog::maybe_nag (
-               _panel,
-               Config::NAG_REMAKE_DECRYPTION_CHAIN,
-               _("If you continue with this operation you will no longer be able to use any DKDMs that you have created.  Also, any KDMs that have been sent to you will become useless.  Proceed with caution!")
+       auto c = new CertificateChainEditor (
+               _panel, _("Signing DCPs and KDMs"), _border,
+               bind(&Config::set_signer_chain, Config::instance(), _1),
+               bind(&Config::signer_chain, Config::instance()),
+               bind(&do_nothing)
                );
+
+       c->ShowModal();
 }
 
 void
-KeysPage::export_decryption_chain ()
+KeysPage::export_decryption_chain_and_key ()
 {
-       wxFileDialog* d = new wxFileDialog (
-               _panel, _("Select Chain File"), wxEmptyString, wxEmptyString, wxT ("PEM files (*.pem)|*.pem"),
+       auto d = new wxFileDialog (
+               _panel, _("Select Export File"), wxEmptyString, wxEmptyString, wxT ("DOM files (*.dom)|*.dom"),
                wxFD_SAVE | wxFD_OVERWRITE_PROMPT
                );
 
        if (d->ShowModal () == wxID_OK) {
-               FILE* f = fopen_boost (wx_to_std (d->GetPath ()), "w");
+               boost::filesystem::path path (wx_to_std(d->GetPath()));
+               auto f = fopen_boost (path, "w");
                if (!f) {
-                       throw OpenFileError (wx_to_std (d->GetPath ()), errno, false);
+                       throw OpenFileError (path, errno, OpenFileError::WRITE);
                }
 
-               std::string const s = Config::instance()->decryption_chain()->chain();
-               fwrite (s.c_str(), 1, s.length(), f);
+               auto const chain = Config::instance()->decryption_chain()->chain();
+               checked_fwrite (chain.c_str(), chain.length(), f, path);
+               optional<string> const key = Config::instance()->decryption_chain()->key();
+               DCPOMATIC_ASSERT (key);
+               checked_fwrite (key->c_str(), key->length(), f, path);
                fclose (f);
        }
        d->Destroy ();
+
+}
+
+void
+KeysPage::import_decryption_chain_and_key ()
+{
+       if (NagDialog::maybe_nag (
+                   _panel,
+                   Config::NAG_IMPORT_DECRYPTION_CHAIN,
+                   _("If you continue with this operation you will no longer be able to use any DKDMs that you have created with the current certificates and key.  Also, any KDMs that have been sent to you for those certificates will become useless.  Proceed with caution!"),
+                   true
+                   )) {
+               return;
+       }
+
+       auto d = new wxFileDialog (
+               _panel, _("Select File To Import"), wxEmptyString, wxEmptyString, wxT ("DOM files (*.dom)|*.dom")
+               );
+
+       if (d->ShowModal () == wxID_OK) {
+               auto new_chain = make_shared<dcp::CertificateChain>();
+
+               FILE* f = fopen_boost (wx_to_std (d->GetPath ()), "r");
+               if (!f) {
+                       throw OpenFileError (wx_to_std (d->GetPath ()), errno, OpenFileError::WRITE);
+               }
+
+               string current;
+               while (!feof (f)) {
+                       char buffer[128];
+                       if (fgets (buffer, 128, f) == 0) {
+                               break;
+                       }
+                       current += buffer;
+                       if (strncmp (buffer, "-----END CERTIFICATE-----", 25) == 0) {
+                               new_chain->add (dcp::Certificate (current));
+                               current = "";
+                       } else if (strncmp (buffer, "-----END RSA PRIVATE KEY-----", 29) == 0) {
+                               new_chain->set_key (current);
+                               current = "";
+                       }
+               }
+               fclose (f);
+
+               if (new_chain->chain_valid() && new_chain->private_key_valid()) {
+                       Config::instance()->set_decryption_chain (new_chain);
+               } else {
+                       error_dialog (_panel, _("Invalid DCP-o-matic export file"));
+               }
+       }
+       d->Destroy ();
+}
+
+bool
+KeysPage::nag_alter_decryption_chain ()
+{
+       return NagDialog::maybe_nag (
+               _panel,
+               Config::NAG_ALTER_DECRYPTION_CHAIN,
+               _("If you continue with this operation you will no longer be able to use any DKDMs that you have created.  Also, any KDMs that have been sent to you will become useless.  Proceed with caution!"),
+               true
+               );
 }
 
 void
 KeysPage::export_decryption_certificate ()
 {
-       wxFileDialog* d = new wxFileDialog (
-               _panel, _("Select Certificate File"), wxEmptyString, wxEmptyString, wxT ("PEM files (*.pem)|*.pem"),
+       auto config = Config::instance();
+       wxString default_name = "dcpomatic";
+       if (!config->dcp_creator().empty()) {
+               default_name += "_" + std_to_wx(careful_string_filter(config->dcp_creator()));
+       }
+       if (!config->dcp_issuer().empty()) {
+               default_name += "_" + std_to_wx(careful_string_filter(config->dcp_issuer()));
+       }
+       default_name += wxT("_kdm_decryption_cert.pem");
+
+       auto d = new wxFileDialog (
+               _panel, _("Select Certificate File"), wxEmptyString, default_name, wxT("PEM files (*.pem)|*.pem"),
                wxFD_SAVE | wxFD_OVERWRITE_PROMPT
                );
 
        if (d->ShowModal () == wxID_OK) {
-               FILE* f = fopen_boost (wx_to_std (d->GetPath ()), "w");
+               boost::filesystem::path path (wx_to_std(d->GetPath()));
+               if (path.extension() != ".pem") {
+                       path += ".pem";
+               }
+               auto f = fopen_boost (path, "w");
                if (!f) {
-                       throw OpenFileError (wx_to_std (d->GetPath ()), errno, false);
+                       throw OpenFileError (path, errno, OpenFileError::WRITE);
                }
 
-               std::string const s = Config::instance()->decryption_chain()->leaf().certificate (true);
-               fwrite (s.c_str(), 1, s.length(), f);
+               auto const s = Config::instance()->decryption_chain()->leaf().certificate (true);
+               checked_fwrite (s.c_str(), s.length(), f, path);
                fclose (f);
        }
+
        d->Destroy ();
 }
+
+wxString
+SoundPage::GetName () const
+{
+       return _("Sound");
+}
+
+void
+SoundPage::setup ()
+{
+       auto table = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
+       _panel->GetSizer()->Add (table, 1, wxALL | wxEXPAND, _border);
+
+       int r = 0;
+
+       _sound = new CheckBox (_panel, _("Play sound via"));
+       table->Add (_sound, wxGBPosition (r, 0), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
+       wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
+       _sound_output = new wxChoice (_panel, wxID_ANY);
+       s->Add (_sound_output, 0);
+       _sound_output_details = new wxStaticText (_panel, wxID_ANY, wxT(""));
+       s->Add (_sound_output_details, 1, wxALIGN_CENTER_VERTICAL | wxLEFT, DCPOMATIC_SIZER_X_GAP);
+       table->Add (s, wxGBPosition(r, 1));
+       ++r;
+
+       add_label_to_sizer (table, _panel, _("Mapping"), true, wxGBPosition(r, 0));
+       _map = new AudioMappingView (_panel, _("DCP"), _("DCP"), _("Output"), _("output"));
+       _map->SetSize (-1, 600);
+       table->Add (_map, wxGBPosition(r, 1), wxDefaultSpan, wxEXPAND);
+       ++r;
+
+       _reset_to_default = new Button (_panel, _("Reset to default"));
+       table->Add (_reset_to_default, wxGBPosition(r, 1));
+       ++r;
+
+       wxFont font = _sound_output_details->GetFont();
+       font.SetStyle (wxFONTSTYLE_ITALIC);
+       font.SetPointSize (font.GetPointSize() - 1);
+       _sound_output_details->SetFont (font);
+
+       RtAudio audio (DCPOMATIC_RTAUDIO_API);
+       for (unsigned int i = 0; i < audio.getDeviceCount(); ++i) {
+               try {
+                       auto dev = audio.getDeviceInfo (i);
+                       if (dev.probed && dev.outputChannels > 0) {
+                               _sound_output->Append (std_to_wx (dev.name));
+                       }
+               } catch (RtAudioError&) {
+                       /* Something went wrong so let's just ignore that device */
+               }
+       }
+
+       _sound->Bind        (wxEVT_CHECKBOX, bind(&SoundPage::sound_changed, this));
+       _sound_output->Bind (wxEVT_CHOICE,   bind(&SoundPage::sound_output_changed, this));
+       _map->Changed.connect (bind(&SoundPage::map_changed, this, _1));
+       _reset_to_default->Bind (wxEVT_BUTTON,   bind(&SoundPage::reset_to_default, this));
+}
+
+void
+SoundPage::reset_to_default ()
+{
+       Config::instance()->set_audio_mapping_to_default ();
+}
+
+void
+SoundPage::map_changed (AudioMapping m)
+{
+       Config::instance()->set_audio_mapping (m);
+}
+
+void
+SoundPage::sound_changed ()
+{
+       Config::instance()->set_sound (_sound->GetValue ());
+}
+
+void
+SoundPage::sound_output_changed ()
+{
+       RtAudio audio (DCPOMATIC_RTAUDIO_API);
+       auto const so = get_sound_output();
+       string default_device;
+       try {
+               default_device = audio.getDeviceInfo(audio.getDefaultOutputDevice()).name;
+       } catch (RtAudioError&) {
+               /* Never mind */
+       }
+       if (!so || *so == default_device) {
+               Config::instance()->unset_sound_output ();
+       } else {
+               Config::instance()->set_sound_output (*so);
+       }
+}
+
+void
+SoundPage::config_changed ()
+{
+       auto config = Config::instance ();
+
+       checked_set (_sound, config->sound ());
+
+       auto const current_so = get_sound_output ();
+       optional<string> configured_so;
+
+       if (config->sound_output()) {
+               configured_so = config->sound_output().get();
+       } else {
+               /* No configured output means we should use the default */
+               RtAudio audio (DCPOMATIC_RTAUDIO_API);
+               try {
+                       configured_so = audio.getDeviceInfo(audio.getDefaultOutputDevice()).name;
+               } catch (RtAudioError&) {
+                       /* Probably no audio devices at all */
+               }
+       }
+
+       if (configured_so && current_so != configured_so) {
+               /* Update _sound_output with the configured value */
+               unsigned int i = 0;
+               while (i < _sound_output->GetCount()) {
+                       if (_sound_output->GetString(i) == std_to_wx(*configured_so)) {
+                               _sound_output->SetSelection (i);
+                               break;
+                       }
+                       ++i;
+               }
+       }
+
+       RtAudio audio (DCPOMATIC_RTAUDIO_API);
+
+       map<int, wxString> apis;
+       apis[RtAudio::MACOSX_CORE]    = _("CoreAudio");
+       apis[RtAudio::WINDOWS_ASIO]   = _("ASIO");
+       apis[RtAudio::WINDOWS_DS]     = _("Direct Sound");
+       apis[RtAudio::WINDOWS_WASAPI] = _("WASAPI");
+       apis[RtAudio::UNIX_JACK]      = _("JACK");
+       apis[RtAudio::LINUX_ALSA]     = _("ALSA");
+       apis[RtAudio::LINUX_PULSE]    = _("PulseAudio");
+       apis[RtAudio::LINUX_OSS]      = _("OSS");
+       apis[RtAudio::RTAUDIO_DUMMY]  = _("Dummy");
+
+       int channels = 0;
+       if (configured_so) {
+               for (unsigned int i = 0; i < audio.getDeviceCount(); ++i) {
+                       try {
+                               auto info = audio.getDeviceInfo(i);
+                               if (info.name == *configured_so && info.outputChannels > 0) {
+                                       channels = info.outputChannels;
+                               }
+                       } catch (RtAudioError&) {
+                               /* Never mind */
+                       }
+               }
+       }
+
+       _sound_output_details->SetLabel (
+               wxString::Format(_("%d channels on %s"), channels, apis[audio.getCurrentApi()])
+               );
+
+       _map->set (Config::instance()->audio_mapping(channels));
+
+       vector<NamedChannel> input;
+       for (int i = 0; i < MAX_DCP_AUDIO_CHANNELS; ++i) {
+               input.push_back (NamedChannel(short_audio_channel_name(i), i));
+       }
+       _map->set_input_channels (input);
+
+       vector<NamedChannel> output;
+       for (int i = 0; i < channels; ++i) {
+               output.push_back (NamedChannel(dcp::raw_convert<string>(i), i));
+       }
+       _map->set_output_channels (output);
+
+       setup_sensitivity ();
+}
+
+void
+SoundPage::setup_sensitivity ()
+{
+       _sound_output->Enable (_sound->GetValue());
+}
+
+/** @return Currently-selected preview sound output in the dialogue */
+optional<string>
+SoundPage::get_sound_output ()
+{
+       int const sel = _sound_output->GetSelection ();
+       if (sel == wxNOT_FOUND) {
+               return optional<string> ();
+       }
+
+       return wx_to_std (_sound_output->GetString (sel));
+}
+
+
+LocationsPage::LocationsPage (wxSize panel_size, int border)
+       : Page (panel_size, border)
+{
+
+}
+
+wxString
+LocationsPage::GetName () const
+{
+       return _("Locations");
+}
+
+#ifdef DCPOMATIC_OSX
+wxBitmap
+LocationsPage::GetLargeIcon () const
+{
+       return wxBitmap(bitmap_path("locations"), wxBITMAP_TYPE_PNG);
+}
+#endif
+
+void
+LocationsPage::setup ()
+{
+       int r = 0;
+
+       auto table = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
+       _panel->GetSizer()->Add (table, 1, wxALL | wxEXPAND, _border);
+
+       add_label_to_sizer (table, _panel, _("Content directory"), true, wxGBPosition (r, 0));
+       _content_directory = new wxDirPickerCtrl (_panel, wxID_ANY, wxEmptyString, wxDirSelectorPromptStr, wxDefaultPosition, wxSize (300, -1));
+       table->Add (_content_directory, wxGBPosition (r, 1));
+       ++r;
+
+       add_label_to_sizer (table, _panel, _("Playlist directory"), true, wxGBPosition (r, 0));
+       _playlist_directory = new wxDirPickerCtrl (_panel, wxID_ANY, wxEmptyString, wxDirSelectorPromptStr, wxDefaultPosition, wxSize (300, -1));
+       table->Add (_playlist_directory, wxGBPosition (r, 1));
+       ++r;
+
+       add_label_to_sizer (table, _panel, _("KDM directory"), true, wxGBPosition (r, 0));
+       _kdm_directory = new wxDirPickerCtrl (_panel, wxID_ANY, wxEmptyString, wxDirSelectorPromptStr, wxDefaultPosition, wxSize (300, -1));
+       table->Add (_kdm_directory, wxGBPosition (r, 1));
+       ++r;
+
+       _content_directory->Bind (wxEVT_DIRPICKER_CHANGED, bind(&LocationsPage::content_directory_changed, this));
+       _playlist_directory->Bind (wxEVT_DIRPICKER_CHANGED, bind(&LocationsPage::playlist_directory_changed, this));
+       _kdm_directory->Bind (wxEVT_DIRPICKER_CHANGED, bind(&LocationsPage::kdm_directory_changed, this));
+}
+
+void
+LocationsPage::config_changed ()
+{
+       auto config = Config::instance ();
+
+       if (config->player_content_directory()) {
+               checked_set (_content_directory, *config->player_content_directory());
+       }
+       if (config->player_playlist_directory()) {
+               checked_set (_playlist_directory, *config->player_playlist_directory());
+       }
+       if (config->player_kdm_directory()) {
+               checked_set (_kdm_directory, *config->player_kdm_directory());
+       }
+}
+
+void
+LocationsPage::content_directory_changed ()
+{
+       Config::instance()->set_player_content_directory(wx_to_std(_content_directory->GetPath()));
+}
+
+void
+LocationsPage::playlist_directory_changed ()
+{
+       Config::instance()->set_player_playlist_directory(wx_to_std(_playlist_directory->GetPath()));
+}
+
+void
+LocationsPage::kdm_directory_changed ()
+{
+       Config::instance()->set_player_kdm_directory(wx_to_std(_kdm_directory->GetPath()));
+}