Add some logging to the KDM creator.
[dcpomatic.git] / src / tools / dcpomatic_kdm.cc
index 9f1c28c990f9992f1a42a297313bb5a557c27fb2..7a8d7cf349d532749ba69b8cfaf217d7bc232d41 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2015-2019 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2015-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
 
 */
 
-#include "wx/full_config_dialog.h"
+
 #include "wx/about_dialog.h"
-#include "wx/report_problem_dialog.h"
+#include "wx/dcpomatic_button.h"
+#include "wx/editable_list.h"
 #include "wx/file_picker_ctrl.h"
-#include "wx/wx_util.h"
-#include "wx/wx_signal_manager.h"
-#include "wx/screens_panel.h"
-#include "wx/kdm_timing_panel.h"
-#include "wx/kdm_output_panel.h"
+#include "wx/full_config_dialog.h"
 #include "wx/job_view_dialog.h"
-#include "wx/file_dialog_wrapper.h"
+#include "wx/kdm_output_panel.h"
+#include "wx/kdm_timing_panel.h"
+#include "wx/nag_dialog.h"
 #include "wx/new_dkdm_folder_dialog.h"
-#include "wx/editable_list.h"
+#include "wx/report_problem_dialog.h"
+#include "wx/screens_panel.h"
 #include "wx/static_text.h"
-#include "wx/dcpomatic_button.h"
-#include "wx/nag_dialog.h"
+#include "wx/wx_signal_manager.h"
+#include "wx/wx_util.h"
+#include "lib/cinema.h"
+#include "lib/compose.hpp"
 #include "lib/config.h"
-#include "lib/util.h"
-#include "lib/screen.h"
-#include "lib/job_manager.h"
-#include "lib/screen_kdm.h"
+#include "lib/cross.h"
+#include "lib/dcpomatic_log.h"
+#include "lib/dkdm_wrapper.h"
 #include "lib/exceptions.h"
-#include "lib/cinema_kdms.h"
+#include "lib/file_log.h"
+#include "lib/job_manager.h"
+#include "lib/kdm_with_metadata.h"
+#include "lib/screen.h"
 #include "lib/send_kdm_email_job.h"
-#include "lib/compose.hpp"
-#include "lib/cinema.h"
-#include "lib/dkdm_wrapper.h"
-#include "lib/cross.h"
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-#include "lib/decrypted_ecinema_kdm.h"
-#endif
+#include "lib/util.h"
 #include <dcp/encrypted_kdm.h>
 #include <dcp/decrypted_kdm.h>
 #include <dcp/exceptions.h>
-#include <wx/wx.h>
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
+#include <wx/filepicker.h>
 #include <wx/preferences.h>
 #include <wx/splash.h>
-#include <wx/filepicker.h>
+#include <wx/treectrl.h>
+#include <wx/wx.h>
+LIBDCP_ENABLE_WARNINGS
 #ifdef __WXOSX__
 #include <ApplicationServices/ApplicationServices.h>
 #endif
-#include <boost/bind.hpp>
-#include <boost/foreach.hpp>
+#include <boost/bind/bind.hpp>
 
 #ifdef check
 #undef check
 #endif
 
+
 using std::exception;
 using std::list;
+using std::make_shared;
+using std::map;
+using std::pair;
+using std::shared_ptr;
 using std::string;
 using std::vector;
-using std::pair;
-using std::map;
-using boost::shared_ptr;
 using boost::bind;
 using boost::optional;
 using boost::ref;
-using boost::dynamic_pointer_cast;
+using std::dynamic_pointer_cast;
+#if BOOST_VERSION >= 106100
+using namespace boost::placeholders;
+#endif
 using namespace dcpomatic;
 
+
 enum {
        ID_help_report_a_problem = 1,
 };
 
+
 class DOMFrame : public wxFrame
 {
 public:
        explicit DOMFrame (wxString const & title)
-               : wxFrame (0, -1, title)
-               , _config_dialog (0)
-               , _job_view (0)
+               : wxFrame (nullptr, -1, title)
+               , _config_dialog (nullptr)
+               , _job_view (nullptr)
        {
 #if defined(DCPOMATIC_WINDOWS)
                if (Config::instance()->win32_console ()) {
@@ -111,7 +119,7 @@ public:
                }
 #endif
 
-               wxMenuBar* bar = new wxMenuBar;
+               auto bar = new wxMenuBar;
                setup_menu (bar);
                SetMenuBar (bar);
 
@@ -123,12 +131,12 @@ public:
                /* Use a panel as the only child of the Frame so that we avoid
                   the dark-grey background on Windows.
                */
-               wxPanel* overall_panel = new wxPanel (this, wxID_ANY);
-               wxBoxSizer* main_sizer = new wxBoxSizer (wxHORIZONTAL);
+               auto overall_panel = new wxPanel (this, wxID_ANY);
+               auto main_sizer = new wxBoxSizer (wxHORIZONTAL);
 
-               wxBoxSizer* horizontal = new wxBoxSizer (wxHORIZONTAL);
-               wxBoxSizer* left = new wxBoxSizer (wxVERTICAL);
-               wxBoxSizer* right = new wxBoxSizer (wxVERTICAL);
+               auto horizontal = new wxBoxSizer (wxHORIZONTAL);
+               auto left = new wxBoxSizer (wxVERTICAL);
+               auto right = new wxBoxSizer (wxVERTICAL);
 
                horizontal->Add (left, 1, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_X_GAP * 2);
                horizontal->Add (right, 1, wxEXPAND);
@@ -136,23 +144,23 @@ public:
                wxFont subheading_font (*wxNORMAL_FONT);
                subheading_font.SetWeight (wxFONTWEIGHT_BOLD);
 
-               wxStaticText* h = new StaticText (overall_panel, _("Screens"));
+               auto h = new StaticText (overall_panel, _("Screens"));
                h->SetFont (subheading_font);
-               left->Add (h, 0, wxALIGN_CENTER_VERTICAL | wxBOTTOM, DCPOMATIC_SIZER_Y_GAP);
+               left->Add (h, 0, wxBOTTOM, DCPOMATIC_SIZER_Y_GAP);
                _screens = new ScreensPanel (overall_panel);
                left->Add (_screens, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_SIZER_Y_GAP);
 
                /// TRANSLATORS: translate the word "Timing" here; do not include the "KDM|" prefix
                h = new StaticText (overall_panel, S_("KDM|Timing"));
                h->SetFont (subheading_font);
-               right->Add (h, 0, wxALIGN_CENTER_VERTICAL, DCPOMATIC_SIZER_Y_GAP * 2);
+               right->Add (h);
                _timing = new KDMTimingPanel (overall_panel);
                right->Add (_timing, 0, wxALL, DCPOMATIC_SIZER_Y_GAP);
 
                h = new StaticText (overall_panel, _("DKDM"));
                h->SetFont (subheading_font);
-               right->Add (h, 0, wxALIGN_CENTER_VERTICAL | wxTOP, DCPOMATIC_SIZER_Y_GAP * 2);
-               wxBoxSizer* dkdm_sizer = new wxBoxSizer (wxHORIZONTAL);
+               right->Add (h, 0, wxTOP, DCPOMATIC_SIZER_Y_GAP * 2);
+               auto dkdm_sizer = new wxBoxSizer (wxHORIZONTAL);
                _dkdm = new wxTreeCtrl (
                        overall_panel, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTR_HIDE_ROOT | wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT
                );
@@ -173,9 +181,8 @@ public:
 
                h = new StaticText (overall_panel, _("Output"));
                h->SetFont (subheading_font);
-               right->Add (h, 0, wxALIGN_CENTER_VERTICAL | wxTOP, DCPOMATIC_SIZER_Y_GAP * 2);
-               /* XXX: hard-coded non-interop here */
-               _output = new KDMOutputPanel (overall_panel, false);
+               right->Add (h, 0, wxTOP, DCPOMATIC_SIZER_Y_GAP * 2);
+               _output = new KDMOutputPanel (overall_panel);
                right->Add (_output, 0, wxALL, DCPOMATIC_SIZER_Y_GAP);
 
                _create = new Button (overall_panel, _("Create KDMs"));
@@ -198,6 +205,8 @@ public:
                _export_dkdm->Bind (wxEVT_BUTTON, bind (&DOMFrame::export_dkdm_clicked, this));
 
                setup_sensitivity ();
+
+               dcpomatic_log = make_shared<FileLog>(State::write_path("kdm.log"));
        }
 
 private:
@@ -217,14 +226,14 @@ private:
 
        void help_about ()
        {
-               AboutDialog* d = new AboutDialog (this);
+               auto d = new AboutDialog (this);
                d->ShowModal ();
                d->Destroy ();
        }
 
        void help_report_a_problem ()
        {
-               ReportProblemDialog* d = new ReportProblemDialog (this, shared_ptr<Film> ());
+               auto d = new ReportProblemDialog (this, shared_ptr<Film>());
                if (d->ShowModal () == wxID_OK) {
                        d->report ();
                }
@@ -233,7 +242,7 @@ private:
 
        void setup_menu (wxMenuBar* m)
        {
-               wxMenu* file = new wxMenu;
+               auto file = new wxMenu;
 
 #ifdef __WXOSX__
                file->Append (wxID_EXIT, _("&Exit"));
@@ -287,7 +296,7 @@ private:
                        *id = selections[0];
                }
 
-               DKDMMap::const_iterator i = _dkdm_id.find (selections[0]);
+               auto i = _dkdm_id.find (selections[0]);
                if (i == _dkdm_id.end()) {
                        return shared_ptr<DKDMBase> ();
                }
@@ -298,39 +307,15 @@ private:
        void create_kdms ()
        {
                try {
-                       shared_ptr<DKDMBase> dkdm_base = selected_dkdm ();
+                       auto dkdm_base = selected_dkdm ();
                        if (!dkdm_base) {
                                return;
                        }
 
-                       list<shared_ptr<ScreenKDM> > screen_kdms;
+                       list<KDMWithMetadataPtr> kdms;
                        string title;
 
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-                       shared_ptr<ECinemaDKDM> ecinema_dkdm = boost::dynamic_pointer_cast<ECinemaDKDM> (dkdm_base);
-                       if (ecinema_dkdm) {
-                               DecryptedECinemaKDM decrypted (ecinema_dkdm->dkdm(), Config::instance()->decryption_chain()->key().get());
-                               title = decrypted.name ();
-
-                               BOOST_FOREACH (shared_ptr<Screen> i, _screens->screens()) {
-
-                                       if (!i->recipient) {
-                                               continue;
-                                       }
-
-                                       DecryptedECinemaKDM kdm (decrypted.id(), decrypted.name(), decrypted.key());
-
-                                       /* Encrypt */
-                                       screen_kdms.push_back (
-                                               shared_ptr<ScreenKDM>(
-                                                       new ECinemaScreenKDM(i, kdm.encrypt(i->recipient.get()))
-                                                       )
-                                               );
-                               }
-                       }
-#endif
-
-                       shared_ptr<DKDM> dkdm = boost::dynamic_pointer_cast<DKDM> (dkdm_base);
+                       auto dkdm = std::dynamic_pointer_cast<DKDM>(dkdm_base);
                        if (dkdm) {
 
                                /* Decrypt the DKDM */
@@ -338,52 +323,58 @@ private:
                                title = decrypted.content_title_text ();
 
                                /* This is the signer for our new KDMs */
-                               shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
+                               auto signer = Config::instance()->signer_chain ();
                                if (!signer->valid ()) {
                                        throw InvalidSignerError ();
                                }
 
-                               BOOST_FOREACH (shared_ptr<Screen> i, _screens->screens()) {
+                               for (auto i: _screens->screens()) {
 
                                        if (!i->recipient) {
                                                continue;
                                        }
 
+                                       dcp::LocalTime begin(_timing->from(), i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute());
+                                       dcp::LocalTime end(_timing->until(), i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute());
+
                                        /* Make an empty KDM */
                                        dcp::DecryptedKDM kdm (
-                                               dcp::LocalTime (_timing->from(), i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute()),
-                                               dcp::LocalTime (_timing->until(), i->cinema->utc_offset_hour(), i->cinema->utc_offset_minute()),
+                                               begin,
+                                               end,
                                                decrypted.annotation_text().get_value_or (""),
-                                               decrypted.content_title_text(),
+                                               title,
                                                dcp::LocalTime().as_string()
                                                );
 
                                        /* Add keys from the DKDM */
-                                       BOOST_FOREACH (dcp::DecryptedKDMKey const & j, decrypted.keys()) {
+                                       for (auto const& j: decrypted.keys()) {
                                                kdm.add_key (j);
                                        }
 
+                                       auto const encrypted = kdm.encrypt(
+                                                       signer, i->recipient.get(), i->trusted_device_thumbprints(), _output->formulation(),
+                                                       !_output->forensic_mark_video(), _output->forensic_mark_audio() ? boost::optional<int>() : 0
+                                                       );
+
+                                       dcp::NameFormat::Map name_values;
+                                       name_values['c'] = i->cinema->name;
+                                       name_values['s'] = i->name;
+                                       name_values['f'] = title;
+                                       name_values['b'] = begin.date() + " " + begin.time_of_day(true, false);
+                                       name_values['e'] = end.date() + " " + end.time_of_day(true, false);
+                                       name_values['i'] = encrypted.cpl_id ();
+
                                        /* Encrypt */
-                                       screen_kdms.push_back (
-                                               shared_ptr<ScreenKDM>(
-                                                       new DCPScreenKDM(
-                                                               i,
-                                                               kdm.encrypt(
-                                                                       signer, i->recipient.get(), i->trusted_device_thumbprints(), _output->formulation(),
-                                                                       !_output->forensic_mark_video(), _output->forensic_mark_audio() ? boost::optional<int>() : 0
-                                                                       )
-                                                               )
-                                                       )
-                                               );
+                                       kdms.push_back (make_shared<KDMWithMetadata>(name_values, i->cinema.get(), i->cinema->emails, encrypted));
                                }
                        }
 
-                       if (screen_kdms.empty()) {
+                       if (kdms.empty()) {
                                return;
                        }
 
-                       pair<shared_ptr<Job>, int> result = _output->make (
-                               screen_kdms, title, _timing, bind (&DOMFrame::confirm_overwrite, this, _1)
+                       auto result = _output->make (
+                               kdms, title, bind (&DOMFrame::confirm_overwrite, this, _1)
                                );
 
                        if (result.first) {
@@ -419,9 +410,9 @@ private:
                _output->setup_sensitivity ();
                wxArrayTreeItemIds sel;
                _dkdm->GetSelections (sel);
-               shared_ptr<DKDMGroup> group = dynamic_pointer_cast<DKDMGroup>(selected_dkdm());
-               shared_ptr<DKDM> dkdm = dynamic_pointer_cast<DKDM>(selected_dkdm());
-               _create->Enable (!_screens->screens().empty() && sel.GetCount() > 0);
+               auto group = dynamic_pointer_cast<DKDMGroup>(selected_dkdm());
+               auto dkdm = dynamic_pointer_cast<DKDM>(selected_dkdm());
+               _create->Enable (!_screens->screens().empty() && sel.GetCount() > 0 && dkdm);
                _remove_dkdm->Enable (sel.GetCount() > 0 && (!group || group->name() != "root"));
                _export_dkdm->Enable (sel.GetCount() > 0 && dkdm);
        }
@@ -433,13 +424,13 @@ private:
 
        void dkdm_end_drag (wxTreeEvent& ev)
        {
-               DKDMMap::iterator from = _dkdm_id.find (_dkdm->GetSelection ());
-               DKDMMap::iterator to = _dkdm_id.find (ev.GetItem ());
+               auto from = _dkdm_id.find (_dkdm->GetSelection ());
+               auto to = _dkdm_id.find (ev.GetItem ());
                if (from == _dkdm_id.end() || to == _dkdm_id.end() || from->first == to->first) {
                        return;
                }
 
-               shared_ptr<DKDMGroup> group = dynamic_pointer_cast<DKDMGroup> (to->second);
+               auto group = dynamic_pointer_cast<DKDMGroup> (to->second);
                if (!group) {
                        group = to->second->parent();
                }
@@ -457,56 +448,18 @@ private:
 
        void add_dkdm_clicked ()
        {
-               wxFileDialog* d = new wxFileDialog (this, _("Select DKDM file"));
+               auto d = new wxFileDialog (this, _("Select DKDM file"));
                if (d->ShowModal() == wxID_OK) {
-                       shared_ptr<const dcp::CertificateChain> chain = Config::instance()->decryption_chain();
+                       auto chain = Config::instance()->decryption_chain();
                        DCPOMATIC_ASSERT (chain->key());
 
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-                       try {
-                               cxml::Document test_doc;
-                               string const xml_string = dcp::file_to_string (wx_to_std(d->GetPath()), MAX_KDM_SIZE);
-                               test_doc.read_string (xml_string);
-                               if (test_doc.root_name() == "ECinemaSecurityMessage") {
-                                       EncryptedECinemaKDM ekdm(xml_string);
-                                       /* Decrypt the DKDM to make sure that we can */
-                                       DecryptedECinemaKDM dkdm(ekdm, chain->key().get());
-
-                                       shared_ptr<DKDMBase> new_dkdm(new ECinemaDKDM(ekdm));
-                                       shared_ptr<DKDMGroup> group = dynamic_pointer_cast<DKDMGroup> (selected_dkdm());
-                                       if (!group) {
-                                               group = Config::instance()->dkdms();
-                                       }
-                                       add_dkdm_model (new_dkdm, group);
-                                       add_dkdm_view (new_dkdm);
-                                       d->Destroy ();
-                                       return;
-                               }
-                       } catch (KDMError& e) {
-                               error_dialog (
-                                       this, "Could not read file as a KDM.  Perhaps it is badly formatted, created with the wrong certificate, or not a KDM at all.",
-                                       std_to_wx(e.what())
-                                       );
-                               d->Destroy ();
-                               return;
-                       } catch (dcp::MiscError& e) {
-                               error_dialog (
-                                       this,
-                                       _("Could not read file as a KDM.  It is much too large.  Make sure you are loading a DKDM (XML) file."),
-                                       std_to_wx(e.what())
-                                       );
-                               d->Destroy ();
-                               return;
-                       }
-#endif
-
                        try {
                                dcp::EncryptedKDM ekdm(dcp::file_to_string (wx_to_std (d->GetPath ()), MAX_KDM_SIZE));
                                /* Decrypt the DKDM to make sure that we can */
                                dcp::DecryptedKDM dkdm(ekdm, chain->key().get());
 
-                               shared_ptr<DKDMBase> new_dkdm(new DKDM(ekdm));
-                               shared_ptr<DKDMGroup> group = dynamic_pointer_cast<DKDMGroup> (selected_dkdm ());
+                               auto new_dkdm = make_shared<DKDM>(ekdm);
+                               auto group = dynamic_pointer_cast<DKDMGroup> (selected_dkdm());
                                if (!group) {
                                        group = Config::instance()->dkdms ();
                                }
@@ -537,10 +490,10 @@ private:
 
        void add_dkdm_folder_clicked ()
        {
-               NewDKDMFolderDialog* d = new NewDKDMFolderDialog (this);
+               auto d = new NewDKDMFolderDialog (this);
                if (d->ShowModal() == wxID_OK) {
-                       shared_ptr<DKDMBase> new_dkdm (new DKDMGroup (wx_to_std (d->get ())));
-                       shared_ptr<DKDMGroup> parent = dynamic_pointer_cast<DKDMGroup> (selected_dkdm ());
+                       auto new_dkdm = make_shared<DKDMGroup>(wx_to_std(d->get()));
+                       auto parent = dynamic_pointer_cast<DKDMGroup>(selected_dkdm());
                        if (!parent) {
                                parent = Config::instance()->dkdms ();
                        }
@@ -570,9 +523,9 @@ private:
                }
 
                /* Add children */
-               shared_ptr<DKDMGroup> g = dynamic_pointer_cast<DKDMGroup> (base);
+               auto g = dynamic_pointer_cast<DKDMGroup>(base);
                if (g) {
-                       BOOST_FOREACH (shared_ptr<DKDMBase> i, g->children()) {
+                       for (auto i: g->children()) {
                                add_dkdm_view (i);
                        }
                }
@@ -590,9 +543,9 @@ private:
 
        wxTreeItemId dkdm_to_id (shared_ptr<DKDMBase> dkdm)
        {
-               for (DKDMMap::iterator i = _dkdm_id.begin(); i != _dkdm_id.end(); ++i) {
-                       if (i->second == dkdm) {
-                               return i->first;
+               for (auto const& i: _dkdm_id) {
+                       if (i.second == dkdm) {
+                               return i.first;
                        }
                }
                DCPOMATIC_ASSERT (false);
@@ -600,7 +553,7 @@ private:
 
        void remove_dkdm_clicked ()
        {
-               shared_ptr<DKDMBase> removed = selected_dkdm ();
+               auto removed = selected_dkdm ();
                if (!removed) {
                        return;
                }
@@ -614,24 +567,24 @@ private:
                }
 
                _dkdm->Delete (dkdm_to_id (removed));
-               shared_ptr<DKDMGroup> dkdms = Config::instance()->dkdms ();
+               auto dkdms = Config::instance()->dkdms ();
                dkdms->remove (removed);
                Config::instance()->changed ();
        }
 
        void export_dkdm_clicked ()
        {
-               shared_ptr<DKDMBase> removed = selected_dkdm ();
+               auto removed = selected_dkdm ();
                if (!removed) {
                        return;
                }
 
-               shared_ptr<DKDM> dkdm = dynamic_pointer_cast<DKDM>(removed);
+               auto dkdm = dynamic_pointer_cast<DKDM>(removed);
                if (!dkdm) {
                        return;
                }
 
-               wxFileDialog* d = new wxFileDialog (
+               auto d = new wxFileDialog (
                        this, _("Select DKDM File"), wxEmptyString, wxEmptyString, wxT("XML files (*.xml)|*.xml"),
                        wxFD_SAVE | wxFD_OVERWRITE_PROMPT
                        );
@@ -646,7 +599,7 @@ private:
        ScreensPanel* _screens;
        KDMTimingPanel* _timing;
        wxTreeCtrl* _dkdm;
-       typedef std::map<wxTreeItemId, boost::shared_ptr<DKDMBase> > DKDMMap;
+       typedef std::map<wxTreeItemId, std::shared_ptr<DKDMBase>> DKDMMap;
        DKDMMap _dkdm_id;
        wxButton* _add_dkdm;
        wxButton* _add_dkdm_folder;
@@ -657,6 +610,7 @@ private:
        JobViewDialog* _job_view;
 };
 
+
 /** @class App
  *  @brief The magic App class for wxWidgets.
  */
@@ -665,14 +619,14 @@ class App : public wxApp
 public:
        App ()
                : wxApp ()
-               , _frame (0)
+               , _frame (nullptr)
        {}
 
 private:
 
-       bool OnInit ()
+       bool OnInit () override
        {
-               wxSplashScreen* splash = 0;
+               wxSplashScreen* splash = nullptr;
 
                try {
                        wxInitAllImageHandlers ();
@@ -692,10 +646,8 @@ private:
                        unsetenv ("UBUNTU_MENUPROXY");
 #endif
 
-#ifdef __WXOSX__
-                       ProcessSerialNumber serial;
-                       GetCurrentProcess (&serial);
-                       TransformProcessType (&serial, kProcessTransformToForegroundApplication);
+#ifdef DCPOMATIC_OSX
+                       make_foreground_application ();
 #endif
 
                        dcpomatic_setup_path_encoding ();
@@ -723,7 +675,7 @@ private:
                        _frame->Maximize ();
                        if (splash) {
                                splash->Destroy ();
-                               splash = 0;
+                               splash = nullptr;
                        }
                        _frame->Show ();
 
@@ -742,7 +694,7 @@ private:
        }
 
        /* An unhandled exception has occurred inside the main event loop */
-       bool OnExceptionInMainLoop ()
+       bool OnExceptionInMainLoop () override
        {
                try {
                        throw;
@@ -757,10 +709,10 @@ private:
                                );
                } catch (exception& e) {
                        error_dialog (
-                               0,
+                               nullptr,
                                wxString::Format (
                                        _("An exception occurred: %s.\n\n") + " " + REPORT_PROBLEM,
-                                       std_to_wx (e.what ())
+                                       std_to_wx(e.what())
                                        )
                                );
                } catch (...) {
@@ -771,9 +723,9 @@ private:
                return false;
        }
 
-       void OnUnhandledException ()
+       void OnUnhandledException () override
        {
-               error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
+               error_dialog (nullptr, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
        }
 
        void idle ()
@@ -788,7 +740,7 @@ private:
 
        void config_warning (string m)
        {
-               message_dialog (_frame, std_to_wx (m));
+               message_dialog (_frame, std_to_wx(m));
        }
 
        DOMFrame* _frame;