[ADD] : add a function for define locale to use beofre and after the dialog display

Author: aiekick

ImGuiFileDialog.cpp

@@ -3293,9 +3293,12 @@ namespace IGFD
 
 	bool IGFD::FileDialog::Display(const std::string& vKey, ImGuiWindowFlags vFlags, ImVec2 vMinSize, ImVec2 vMaxSize)
 	{
+		bool res = false;
+
 		if (prFileDialogInternal.puShowDialog && prFileDialogInternal.puDLGkey == vKey)
 		{
-			bool res = false;
+			if (prFileDialogInternal.puUseCustomLocale)
+				setlocale(prFileDialogInternal.puLocaleCategory, prFileDialogInternal.puLocaleBegin.c_str());
 
 			auto& fdFile = prFileDialogInternal.puFileManager;
 			auto& fdFilter = prFileDialogInternal.puFilterManager;
@@ -3405,10 +3408,13 @@ namespace IGFD
 				ImGui::End();
 
 			// confirm the result and show the confirm to overwrite dialog if needed
-			return prConfirm_Or_OpenOverWriteFileDialog_IfNeeded(res, vFlags);
+			res =  prConfirm_Or_OpenOverWriteFileDialog_IfNeeded(res, vFlags);
+			
+			if (prFileDialogInternal.puUseCustomLocale)
+				setlocale(prFileDialogInternal.puLocaleCategory, prFileDialogInternal.puLocaleEnd.c_str());
 		}
 
-		return false;
+		return res;
 	}
 
 	void IGFD::FileDialog::NewFrame()
@@ -4088,6 +4094,13 @@ namespace IGFD
 		prFileDialogInternal.puFilterManager.ClearExtentionInfos();
 	}
 
+	void IGFD::FileDialog::SetLocales(const int& vLocaleCategory, const std::string& vLocaleBegin, const std::string& vLocaleEnd)
+	{
+		prFileDialogInternal.puUseCustomLocale = true;
+		prFileDialogInternal.puLocaleBegin = vLocaleBegin;
+		prFileDialogInternal.puLocaleEnd = vLocaleEnd;
+	}
+
 	//////////////////////////////////////////////////////////////////////////////
 	//// OVERWRITE DIALOG ////////////////////////////////////////////////////////
 	//////////////////////////////////////////////////////////////////////////////
@@ -4677,6 +4690,13 @@ IMGUIFILEDIALOG_API void IGFD_ClearExtentionInfos(ImGuiFileDialog* vContext)
 		vContext->ClearExtentionInfos();
 	}
 }
+IMGUIFILEDIALOG_API void SetLocales(ImGuiFileDialog* vContext, const int vCategory, const char* vBeginLocale, const char* vEndLocale)
+{
+	if (vContext)
+	{
+		vContext->SetLocales(vCategory, (vBeginLocale ? vBeginLocale : ""), (vEndLocale ? vEndLocale : ""));
+	}
+}
 
 #ifdef USE_EXPLORATION_BY_KEYS
 IMGUIFILEDIALOG_API void IGFD_SetFlashingAttenuationInSeconds(ImGuiFileDialog* vContext, float vAttenValue)

ImGuiFileDialog.h

@@ -1042,6 +1042,11 @@ namespace IGFD
 		bool puDLGmodal = false;
 		bool puNeedToExitDialog = false;
 
+		bool puUseCustomLocale = false;
+		int puLocaleCategory = LC_ALL;	// locale category to use
+		std::string puLocaleBegin; // the locale who will be applied at start of the display dialog
+		std::string puLocaleEnd; // the locale who will be applaied at end of the display dialog
+
 	public:
 		void NewFrame();			// new frame, so maybe neded to do somethings, like reset events
 		void EndFrame();			// end frame, so maybe neded to do somethings fater all
@@ -1201,6 +1206,11 @@ namespace IGFD
 			std::string* vOutIcon = 0);								// icon or text to retrieve
 		void ClearExtentionInfos();									// clear extentions setttings
 
+		void SetLocales(											// set locales to use before and after the dialog display
+			const int& vLocaleCategory,									// set local category
+			const std::string& vLocaleBegin,						// locale to use at begining of the dialog display
+			const std::string& vLocaleEnd);							// locale to use at the end of the dialog display
+
 	protected:
 		void NewFrame();											// new frame just at begining of display
 		void EndFrame();											// end frame just at end of display
@@ -1451,6 +1461,12 @@ IMGUIFILEDIALOG_API bool IGFD_GetExtentionInfos(
 IMGUIFILEDIALOG_API void IGFD_ClearExtentionInfos(			// clear extentions setttings
 	ImGuiFileDialog* vContext);								// ImGuiFileDialog context
 
+IMGUIFILEDIALOG_API void SetLocales(						// set locales to use before and after display
+	ImGuiFileDialog* vContext,								// ImGuiFileDialog context 
+	const int vCategory,									// set local category
+	const char* vBeginLocale,								// locale to use at begining of the dialog display
+	const char* vEndLocale);								// locale to set at end of the dialog display
+
 #ifdef USE_EXPLORATION_BY_KEYS
 IMGUIFILEDIALOG_API void IGFD_SetFlashingAttenuationInSeconds(	// set the flashing time of the line in file list when use exploration keys
 	ImGuiFileDialog* vContext,									// ImGuiFileDialog context