From e120bec4f04c982b285c085b9d24793351dfff45 Mon Sep 17 00:00:00 2001
From: Thomas Goyne <plorkyeran@aegisub.org>
Date: Sun, 25 Mar 2012 04:05:25 +0000
Subject: [PATCH] Clean up AegisubLocale a bit

Don't let the user cancel the language selection dialog on first
startup, and don't bother with the dialog at all if there's only one
language available.

Originally committed to SVN as r6602.
---
 aegisub/src/aegisublocale.cpp | 86 +++++++++++++----------------------
 aegisub/src/aegisublocale.h   | 17 +------
 aegisub/src/command/app.cpp   |  5 +-
 3 files changed, 36 insertions(+), 72 deletions(-)

diff --git a/aegisub/src/aegisublocale.cpp b/aegisub/src/aegisublocale.cpp
index 42fb2a5f7..da5c6e0b8 100644
--- a/aegisub/src/aegisublocale.cpp
+++ b/aegisub/src/aegisublocale.cpp
@@ -34,9 +34,6 @@
 /// @ingroup utility
 ///
 
-
-///////////
-// Headers
 #include "config.h"
 
 #ifndef AGI_PRE
@@ -52,34 +49,17 @@
 #include "aegisublocale.h"
 #include "standard_paths.h"
 
-/// @brief Constructor
-///
-AegisubLocale::AegisubLocale () {
-	locale = NULL;
-	curCode = -1;
-}
-
-
-/// @brief DOCME
-///
 AegisubLocale::~AegisubLocale() {
-	delete locale;
 }
 
-
-/// @brief Initialize
-/// @param language
-///
 void AegisubLocale::Init(int language) {
-	if (language == -1) language = wxLANGUAGE_ENGLISH;
-	if (locale) delete locale;
+	if (language == -1)
+		language = wxLANGUAGE_ENGLISH;
 
-	if (!wxLocale::IsAvailable(language)) {
+	if (!wxLocale::IsAvailable(language))
 		language = wxLANGUAGE_UNKNOWN;
-	}
 
-	curCode = language;
-	locale = new wxLocale(language);
+	locale.reset(new wxLocale(language));
 
 #ifdef __WINDOWS__
 	locale->AddCatalogLookupPathPrefix(StandardPaths::DecodePath("?data/locale/"));
@@ -93,52 +73,52 @@ void AegisubLocale::Init(int language) {
 	setlocale(LC_CTYPE, "C");
 }
 
-
-
-/// @brief Pick a language
-/// @return
-///
 int AegisubLocale::PickLanguage() {
-	// Get list
 	wxArrayInt langs = GetAvailableLanguages();
 
 	// Check if english is in it, else add it
 	if (langs.Index(wxLANGUAGE_ENGLISH) == wxNOT_FOUND) {
-		langs.Insert(wxLANGUAGE_ENGLISH,0);
+		langs.Insert(wxLANGUAGE_ENGLISH, 0);
 	}
 
 	// Check if user local language is available, if so, make it first
 	int user = wxLocale::GetSystemLanguage();
 	if (langs.Index(user) != wxNOT_FOUND) {
 		langs.Remove(user);
-		langs.Insert(user,0);
-	}
-
-	// Generate names
-	wxArrayString langNames;
-	for (size_t i=0;i<langs.Count();i++) {
-		langNames.Add(wxLocale::GetLanguageName(langs[i]));
+		langs.Insert(user, 0);
 	}
 
 	// Nothing to pick
-	if (langs.Count() == 0) return -1;
+	if (langs.empty()) return -1;
 
-	// Popup
-	int picked = wxGetSingleChoiceIndex("Please choose a language:","Language",langNames,NULL,-1,-1,true,300,400);
-	if (picked == -1) return -1;
-	return langs[picked];
+	// Only one language, so don't bother asking the user
+	if (langs.size() == 1 && !locale)
+		return langs[0];
+
+	// Generate names
+	wxArrayString langNames;
+	for (size_t i = 0; i < langs.size(); ++i)
+		langNames.Add(wxLocale::GetLanguageName(langs[i]));
+
+	long style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxOK | wxCENTRE;
+	if (locale)
+		style |= wxCANCEL;
+
+	wxSingleChoiceDialog dialog(NULL, "Please choose a language:", "Language", langNames, 0, style);
+	if (dialog.ShowModal() == wxID_OK) {
+		int picked = dialog.GetSelection();
+		if (locale && langs[picked] == locale->GetLanguage())
+			return -1;
+		return langs[picked];
+	}
+
+	return -1;
 }
 
-
-
-/// @brief Get list of available languages
-///
 wxArrayInt AegisubLocale::GetAvailableLanguages() {
 	wxArrayInt final;
 
 #ifdef __WINDOWS__
-	wxString temp1;
-
 	// Open directory
 	wxString folder = StandardPaths::DecodePath("?data/locale/");
 	wxDir dir;
@@ -146,19 +126,17 @@ wxArrayInt AegisubLocale::GetAvailableLanguages() {
 	if (!dir.Open(folder)) return final;
 
 	// Enumerate folders
-	for (bool cont = dir.GetFirst(&temp1,"",wxDIR_DIRS);cont;cont = dir.GetNext(&temp1)) {
+	wxString temp1;
+	for (bool cont = dir.GetFirst(&temp1, "", wxDIR_DIRS); cont; cont = dir.GetNext(&temp1)) {
 		// Check if .so exists inside folder
-		wxFileName file(folder + temp1 + "/aegisub.mo");
-		if (file.FileExists()) {
+		if (wxFileName::FileExists(folder + temp1 + "/aegisub.mo")) {
 			const wxLanguageInfo *lang = wxLocale::FindLanguageInfo(temp1);
 			if (lang) {
 				final.Add(lang->Language);
 			}
 		}
 	}
-
 #else
-
 	const char* langs[] = {
 		"ca",
 		"cs",
diff --git a/aegisub/src/aegisublocale.h b/aegisub/src/aegisublocale.h
index fc2a3f23e..fc8c2cecd 100644
--- a/aegisub/src/aegisublocale.h
+++ b/aegisub/src/aegisublocale.h
@@ -34,33 +34,20 @@
 /// @ingroup utility
 ///
 
+#include <libaegisub/scoped_ptr.h>
 
-
-
-//////////////
-// Prototypes
 class wxLocale;
 
-
-
 /// DOCME
 /// @class AegisubLocale
 /// @brief DOCME
 ///
 /// DOCME
 class AegisubLocale {
-private:
-
-	/// DOCME
-	wxLocale *locale;
+	agi::scoped_ptr<wxLocale> locale;
 	wxArrayInt GetAvailableLanguages();
 
 public:
-
-	/// DOCME
-	int curCode;
-
-	AegisubLocale();
 	~AegisubLocale();
 	void Init(int language);
 	int PickLanguage();
diff --git a/aegisub/src/command/app.cpp b/aegisub/src/command/app.cpp
index 23bc82c7f..9c4940b47 100644
--- a/aegisub/src/command/app.cpp
+++ b/aegisub/src/command/app.cpp
@@ -185,15 +185,14 @@ struct app_language : public Command {
 
 	void operator()(agi::Context *c) {
 		// Get language
-		int old = wxGetApp().locale.curCode;
 		int newCode = wxGetApp().locale.PickLanguage();
 		// Is OK?
-		if (newCode != -1 && newCode != old) {
+		if (newCode != -1) {
 			// Set code
 			OPT_SET("App/Locale")->SetInt(newCode);
 
 			// Ask to restart program
-			int result = wxMessageBox("Aegisub needs to be restarted so that the new language can be applied. Restart now?","Restart Aegisub?",wxICON_QUESTION | wxYES_NO);
+			int result = wxMessageBox("Aegisub needs to be restarted so that the new language can be applied. Restart now?", "Restart Aegisub?", wxICON_QUESTION | wxYES_NO);
 			if (result == wxYES) {
 				// Restart Aegisub
 				if (wxGetApp().frame->Close()) {