Eliminate implicit std::string <-> wxString conversions

On Windows these don't use UTF-8 and so are broken.

src/aegisublocale.cpp

@@ -112,8 +112,9 @@ std::string AegisubLocale::PickLanguage() {
 			style);
 	if (dialog.ShowModal() == wxID_OK) {
 		int picked = dialog.GetSelection();
-		if (langs[picked] != active_language)
-			return from_wx(langs[picked]);
+		auto new_lang = from_wx(langs[picked]);
+		if (new_lang != active_language)
+			return new_lang;
 	}
 
 	return "";

src/auto4_lua_dialog.cpp

@@ -461,8 +461,8 @@ namespace Automation4 {
 		auto dialog = static_cast<wxDialog *>(parent);
 		auto bs = new wxStdDialogButtonSizer;
 
-		auto make_button = [&](wxWindowID id, int button_pushed, wxString const& text) -> wxButton *{
-			auto button = new wxButton(window, id, text);
+		auto make_button = [&](wxWindowID id, int button_pushed, std::string const& text) -> wxButton *{
+			auto button = new wxButton(window, id, to_wx(text));
 			button->Bind(wxEVT_BUTTON, [=](wxCommandEvent &evt) {
 				this->button_pushed = button_pushed;
 				dialog->TransferDataFromWindow();

src/command/app.cpp

@@ -159,10 +159,10 @@ struct app_language final : public Command {
 
 	void operator()(agi::Context *c) override {
 		// Get language
-		wxString new_language = wxGetApp().locale.PickLanguage();
-		if (!new_language) return;
+		auto new_language = wxGetApp().locale.PickLanguage();
+		if (new_language.empty()) return;
 
-		OPT_SET("App/Language")->SetString(from_wx(new_language));
+		OPT_SET("App/Language")->SetString(new_language);
 
 		// Ask to restart program
 		int result = wxMessageBox("Aegisub needs to be restarted so that the new language can be applied. Restart now?", "Restart Aegisub?", wxYES_NO | wxICON_QUESTION |  wxCENTER);

src/command/audio.cpp

@@ -37,6 +37,7 @@
 #include "../audio_controller.h"
 #include "../audio_karaoke.h"
 #include "../audio_timing.h"
+#include "../compat.h"
 #include "../include/aegisub/context.h"
 #include "../libresrc/libresrc.h"
 #include "../options.h"
@@ -79,9 +80,9 @@ struct audio_open final : public Command {
 	STR_HELP("Open an audio file")
 
 	void operator()(agi::Context *c) override {
-		wxString str = _("Audio Formats") + " (*.aac,*.ac3,*.ape,*.dts,*.flac,*.m4a,*.mka,*.mp3,*.mp4,*.ogg,*.w64,*.wav,*.wma)|*.aac;*.ac3;*.ape;*.dts;*.flac;*.m4a;*.mka;*.mp3;*.mp4;*.ogg;*.w64;*.wav;*.wma|"
+		auto str = from_wx(_("Audio Formats") + " (*.aac,*.ac3,*.ape,*.dts,*.flac,*.m4a,*.mka,*.mp3,*.mp4,*.ogg,*.w64,*.wav,*.wma)|*.aac;*.ac3;*.ape;*.dts;*.flac;*.m4a;*.mka;*.mp3;*.mp4;*.ogg;*.w64;*.wav;*.wma|"
 					+ _("Video Formats") + " (*.asf,*.avi,*.avs,*.d2v,*.m2ts,*.m4v,*.mkv,*.mov,*.mp4,*.mpeg,*.mpg,*.ogm,*.webm,*.wmv,*.ts)|*.asf;*.avi;*.avs;*.d2v;*.m2ts;*.m4v;*.mkv;*.mov;*.mp4;*.mpeg;*.mpg;*.ogm;*.webm;*.wmv;*.ts|"
-					+ _("All Files") + " (*.*)|*.*";
+					+ _("All Files") + " (*.*)|*.*");
 		auto filename = OpenFileSelector(_("Open Audio File"), "Path/Last/Audio", "", "", str, c->parent);
 		if (!filename.empty())
 			c->project->LoadAudio(filename);

src/command/keyframe.cpp

@@ -31,6 +31,7 @@
 
 #include "command.h"
 
+#include "../compat.h"
 #include "../include/aegisub/context.h"
 #include "../libresrc/libresrc.h"
 #include "../options.h"
@@ -71,7 +72,9 @@ struct keyframe_open final : public Command {
 		auto filename = OpenFileSelector(
 			_("Open keyframes file"),
 			"Path/Last/Keyframes", "" ,".txt",
-			_("All Supported Formats") + " (*.txt, *.pass, *.stats, *.log)|*.txt;*.pass;*.stats;*.log|" + _("All Files") + " (*.*)|*.*",
+			from_wx(_("All Supported Formats") +
+				" (*.txt, *.pass, *.stats, *.log)|*.txt;*.pass;*.stats;*.log|" +
+				_("All Files") + " (*.*)|*.*"),
 			c->parent);
 
 		if (!filename.empty())

src/command/timecode.cpp

@@ -71,7 +71,7 @@ struct timecode_open final : public Command {
 	STR_HELP("Open a VFR timecodes v1 or v2 file")
 
 	void operator()(agi::Context *c) override {
-		auto str = _("All Supported Formats") + " (*.txt)|*.txt|" + _("All Files") + " (*.*)|*.*";
+		auto str = from_wx(_("All Supported Formats") + " (*.txt)|*.txt|" + _("All Files") + " (*.*)|*.*");
 		auto filename = OpenFileSelector(_("Open Timecodes File"), "Path/Last/Timecodes", "", "", str, c->parent);
 		if (!filename.empty())
 			c->project->LoadTimecodes(filename);
@@ -91,7 +91,7 @@ struct timecode_save final : public Command {
 	}
 
 	void operator()(agi::Context *c) override {
-		auto str = _("All Supported Formats") + " (*.txt)|*.txt|" + _("All Files") + " (*.*)|*.*";
+		auto str = from_wx(_("All Supported Formats") + " (*.txt)|*.txt|" + _("All Files") + " (*.*)|*.*");
 		auto filename = SaveFileSelector(_("Save Timecodes File"), "Path/Last/Timecodes", "", "", str, c->parent);
 		if (filename.empty()) return;
 

src/command/video.cpp

@@ -564,8 +564,8 @@ struct video_open final : public Command {
 	STR_HELP("Open a video file")
 
 	void operator()(agi::Context *c) override {
-		auto str = _("Video Formats") + " (*.asf,*.avi,*.avs,*.d2v,*.m2ts,*.m4v,*.mkv,*.mov,*.mp4,*.mpeg,*.mpg,*.ogm,*.webm,*.wmv,*.ts,*.y4m,*.yuv)|*.asf;*.avi;*.avs;*.d2v;*.m2ts;*.m4v;*.mkv;*.mov;*.mp4;*.mpeg;*.mpg;*.ogm;*.webm;*.wmv;*.ts;*.y4m;*.yuv|"
-		         + _("All Files") + " (*.*)|*.*";
+		auto str = from_wx(_("Video Formats") + " (*.asf,*.avi,*.avs,*.d2v,*.m2ts,*.m4v,*.mkv,*.mov,*.mp4,*.mpeg,*.mpg,*.ogm,*.webm,*.wmv,*.ts,*.y4m,*.yuv)|*.asf;*.avi;*.avs;*.d2v;*.m2ts;*.m4v;*.mkv;*.mov;*.mp4;*.mpeg;*.mpg;*.ogm;*.webm;*.wmv;*.ts;*.y4m;*.yuv|"
+		         + _("All Files") + " (*.*)|*.*");
 		auto filename = OpenFileSelector(_("Open video file"), "Path/Last/Video", "", "", str, c->parent);
 		if (!filename.empty())
 			c->project->LoadVideo(filename);

src/dialog_attachments.cpp

@@ -126,7 +126,7 @@ void DialogAttachments::AttachFile(wxFileDialog &diag, wxString const& commit_ms
 	diag.GetPaths(paths);
 
 	for (auto const& fn : paths)
-		ass->InsertAttachment(agi::fs::path(fn));
+		ass->InsertAttachment(agi::fs::path(fn.wx_str()));
 
 	ass->Commit(commit_msg, AssFile::COMMIT_ATTACHMENT);
 

src/dialog_automation.cpp

@@ -231,7 +231,7 @@ void DialogAutomation::OnAdd(wxCommandEvent &)
 	diag.GetPaths(fnames);
 
 	for (auto const& fname : fnames) {
-		agi::fs::path fnpath(fname);
+		agi::fs::path fnpath(fname.wx_str());
 		OPT_SET("Path/Last/Automation")->SetString(fnpath.parent_path().string());
 
 		if (has_file(local_manager->GetScripts(), fnpath) || has_file(global_manager->GetScripts(), fnpath)) {

src/dialog_export.cpp

@@ -186,7 +186,7 @@ DialogExport::~DialogExport() {
 void DialogExport::OnProcess(wxCommandEvent &) {
 	if (!d.TransferDataFromWindow()) return;
 
-	auto filename = SaveFileSelector(_("Export subtitles file"), "", "", "", to_wx(SubtitleFormat::GetWildcards(1)), &d);
+	auto filename = SaveFileSelector(_("Export subtitles file"), "", "", "", SubtitleFormat::GetWildcards(1), &d);
 	if (filename.empty()) return;
 
 	for (size_t i = 0; i < filter_list->GetCount(); ++i) {

src/dialog_properties.cpp

@@ -123,7 +123,7 @@ DialogProperties::DialogProperties(agi::Context *c)
 	res_sizer->Add(ResY, 1, wxRIGHT | wxALIGN_CENTER_VERTICAL, 5);
 	res_sizer->Add(FromVideo, 1, 0, 0);
 
-	YCbCrMatrix = new wxComboBox(&d, -1, c->ass->GetScriptInfo("YCbCr Matrix"),
+	YCbCrMatrix = new wxComboBox(&d, -1, to_wx(c->ass->GetScriptInfo("YCbCr Matrix")),
 		 wxDefaultPosition, wxDefaultSize, to_wx(MatrixNames()), wxCB_READONLY);
 
 	auto matrix_sizer = new wxBoxSizer(wxHORIZONTAL);

src/dialog_style_manager.cpp

@@ -430,7 +430,7 @@ void DialogStyleManager::LoadCatalog() {
 	// Get saved style catalogs
 	auto catalogs = AssStyleStorage::GetCatalogs();
 	for (auto const& c : catalogs)
-		CatalogList->Append(c);
+		CatalogList->Append(to_wx(c));
 
 	// Create a default storage if there are none
 	if (CatalogList->IsListEmpty()) {

src/ffmpegsource_common.cpp

@@ -138,7 +138,7 @@ int FFmpegSourceProvider::AskForTrackSelection(const std::map<int, std::string>
 	wxArrayString Choices;
 
 	for (auto const& track : TrackList) {
-		Choices.Add(agi::format(_("Track %02d: %s"), track.first, to_wx(track.second)));
+		Choices.Add(agi::wxformat(_("Track %02d: %s"), track.first, track.second));
 		TrackNumbers.push_back(track.first);
 	}
 

src/main.cpp

@@ -446,5 +446,5 @@ int AegisubApp::OnRun() {
 
 void AegisubApp::MacOpenFile(const wxString &filename) {
 	if (frame && !filename.empty())
-		frame->context->project->LoadSubtitles(agi::fs::path(filename));
+		frame->context->project->LoadSubtitles(agi::fs::path(filename.wx_str()));
 }

src/utils.cpp

@@ -250,21 +250,21 @@ wxString FontFace(std::string opt_prefix) {
 	return to_wx(value);
 }
 
-static agi::fs::path FileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, int flags, wxWindow *parent) {
+static agi::fs::path FileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, std::string const& wildcard, int flags, wxWindow *parent) {
 	wxString path;
 	if (!option_name.empty())
 		path = to_wx(OPT_GET(option_name)->GetString());
-	agi::fs::path filename = wxFileSelector(message, path, to_wx(default_filename), to_wx(default_extension), wildcard, flags, parent).wx_str();
+	agi::fs::path filename = wxFileSelector(message, path, to_wx(default_filename), to_wx(default_extension), to_wx(wildcard), flags, parent).wx_str();
 	if (!filename.empty() && !option_name.empty())
 		OPT_SET(option_name)->SetString(filename.parent_path().string());
 	return filename;
 }
 
-agi::fs::path OpenFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent) {
+agi::fs::path OpenFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, std::string const& wildcard, wxWindow *parent) {
 	return FileSelector(message, option_name, default_filename, default_extension, wildcard, wxFD_OPEN | wxFD_FILE_MUST_EXIST, parent);
 }
 
-agi::fs::path SaveFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent) {
+agi::fs::path SaveFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, std::string const& wildcard, wxWindow *parent) {
 	return FileSelector(message, option_name, default_filename, default_extension, wildcard, wxFD_SAVE | wxFD_OVERWRITE_PROMPT, parent);
 }
 

src/utils.h

@@ -94,8 +94,8 @@ void SetClipboard(wxBitmap const& new_value);
 
 wxString FontFace(std::string opt_prefix);
 
-agi::fs::path OpenFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent);
-agi::fs::path SaveFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent);
+agi::fs::path OpenFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, std::string const& wildcard, wxWindow *parent);
+agi::fs::path SaveFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, std::string const& wildcard, wxWindow *parent);
 
 wxString LocalizedLanguageName(wxString const& lang);
 

src/validators.cpp

@@ -69,7 +69,7 @@ void IntValidator::OnChar(wxKeyEvent& event) {
 	auto ctrl = static_cast<wxTextCtrl *>(GetWindow());
 	auto str = new_value(ctrl, chr);
 	int parsed;
-	if (allow_negative && str == '-')
+	if (allow_negative && str == "-")
 		event.Skip();
 	else if (agi::util::try_parse(str, &parsed) && (allow_negative || parsed >= 0))
 		event.Skip();
@@ -121,7 +121,7 @@ void DoubleValidator::OnChar(wxKeyEvent& event) {
 
 	double parsed;
 	bool can_parse = agi::util::try_parse(str, &parsed);
-	if ((min < 0 && str == '-') || str == '.')
+	if ((min < 0 && str == "-") || str == ".")
 		event.Skip();
 	else if (can_parse && parsed >= min && parsed <= max)
 		event.Skip();