Prevent Direct Write being set if user uses RTL

Ref: notepad-plus-plus@975d29b#commitcomment-132946815

Close notepad-plus-plus#14374

PowerEditor/installer/nativeLang/english.xml

@@ -5,7 +5,7 @@ Translation note:
 2. All the comments are for explanation, they are not for translation.
 -->
 <NotepadPlus>
-	<Native-Langue name="English" filename="english.xml" version="8.5.9">
+	<Native-Langue name="English" filename="english.xml" version="8.6">
 		<Menu>
 			<Main>
 				<!-- Main Menu Entries -->
@@ -1505,6 +1505,7 @@ NOTE: Choosing not to create the placeholders or closing them later, your manual
 Would you like to create those placeholders?
 
 NOTE: Choosing not to create the placeholders or closing them later, your session WILL BE MODIFIED ON EXIT! We suggest you backup your &quot;session.xml&quot; now."/>
+			<RTLvsDirectWrite title="Cannot run RTL" message="RTL is not compatible with DirectWrite mode. Please disable DirectWrite mode in MISC. section of Preferences dialog, restart Notepad++, and try this command again."/>
 		</MessageBox>
 		<ClipboardHistory>
 			<PanelTitle name="Clipboard History"/>

PowerEditor/installer/nativeLang/english_customizable.xml

@@ -5,7 +5,7 @@ Translation note:
 2. All the comments are for explanation, they are not for translation.
 -->
 <NotepadPlus>
-	<Native-Langue name="English" filename="english_customizable.xml" version="8.5.9">
+	<Native-Langue name="English" filename="english_customizable.xml" version="8.6">
 		<Menu>
 			<Main>
 				<!-- Main Menu Entries -->
@@ -1505,6 +1505,7 @@ NOTE: Choosing not to create the placeholders or closing them later, your manual
 Would you like to create those placeholders?
 
 NOTE: Choosing not to create the placeholders or closing them later, your session WILL BE MODIFIED ON EXIT! We suggest you backup your &quot;session.xml&quot; now."/>
+			<RTLvsDirectWrite title="Cannot run RTL" message="RTL is not compatible with DirectWrite mode. Please disable DirectWrite mode in MISC. section of Preferences dialog, restart Notepad++, and try this command again."/>
 		</MessageBox>
 		<ClipboardHistory>
 			<PanelTitle name="Clipboard History"/>

PowerEditor/installer/nativeLang/french.xml

@@ -5,7 +5,7 @@ Translation note:
 2. All the comments are for explanation, they are not for translation.
 -->
 <NotepadPlus>
-	<Native-Langue name="français" filename="french.xml" version="8.5.9">
+	<Native-Langue name="français" filename="french.xml" version="8.6">
 		<Menu>
 			<Main>
 				<!-- Main Menu Entries -->
@@ -1505,6 +1505,7 @@ Notez que si vous choisissez de ne pas créer d'espaces réservés ou de les fer
 Voulez-vous créer des espaces réservés pour eux ?
 
 NOTE : Si vous choisissez de ne pas créer d'espaces réservés ou de les fermer plus tard, votre fichier de session sera modifié à la sortie. Nous vous suggérons de faire une sauvegarde du fichier de session &quot;session.xml&quot; maintenant."/>
+			<RTLvsDirectWrite title="Exécution de la commande &quot;Texte de droite à gauche&quot; impossible" message="&quot;Texte de droite à gauche&quot; n'est pas compatible avec le mode &quot;DirectWrite&quot;. Veuillez désactiver ce mode dans la section &quot;Divers&quot; du dialogue Préférences, redémarer Notepad++, pour exécuter la commande de nouveau."/>
 		</MessageBox>
 		<ClipboardHistory>
 			<PanelTitle name="Historique du presse-papier"/>

PowerEditor/installer/nativeLang/taiwaneseMandarin.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <NotepadPlus>
-	<Native-Langue name="台灣繁體" filename="taiwaneseMandarin.xml" version="8.5.9">
+	<Native-Langue name="台灣繁體" filename="taiwaneseMandarin.xml" version="8.6">
 		<Menu>
 			<Main>
 				<!-- Main Menu Entries -->
@@ -1233,7 +1233,7 @@
 					<Item id="6324" name="文件切換器（Ctrl + TAB）"/>
 					<Item id="6331" name="在標題列僅顯示檔案名稱（隱藏資料夾路徑）"/>
 					<Item id="6334" name="自動偵測檔案編碼"/>
-					<Item id="6349" name="使用 DirectWrite（可改善特殊字符的呈現，需要重新啟動 Notepad++）"/>
+					<Item id="6349" name="使用「直接寫入」模式（可改善特殊字符的呈現，需要重新啟動 Notepad++）"/>
 					<Item id="6337" name="資料夾工作區檔案副檔名："/>
 					<Item id="6114" name="啟動"/>
 					<Item id="6117" name="開啟「最近使用的檔案」功能"/>
@@ -1390,6 +1390,7 @@
 你想為它們創建佔位欄嗎？
 
 請注意，如果你選擇不創建佔位欄或稍後關閉它們，工作階段檔案將在 Notepad++ 關閉時被修改。我們建議你現在備份工作階段檔案 &quot;session.xml&quot; 。"/>
+			<RTLvsDirectWrite title="無法執行「文字由右至左」指令" message="「文字由右至左」指令與「直接寫入」模式不相容。 請在偏好設定對話框的「其他」中停用「直接寫入」模式，然後重新​​啟動 Notepad++，重試此指令。"/>
 		</MessageBox>
 		<ClipboardHistory>
 			<PanelTitle name="剪貼簿記錄"/>

PowerEditor/src/NppCommands.cpp

@@ -3802,13 +3802,26 @@ void Notepad_plus::command(int id)
 		case IDM_EDIT_LTR :
 		{
 			bool toRTL = id == IDM_EDIT_RTL;
+
 			bool isRTL = _pEditView->isTextDirectionRTL();
 
 			if ((toRTL && isRTL) || (!toRTL && !isRTL))
 			{
 				if (! ((NppParameters::getInstance()).getNppGUI())._muteSounds)
 					::MessageBeep(MB_OK);
-				break;
+
+				return;
+			}
+
+			if (toRTL && (NppParameters::getInstance()).getNppGUI()._writeTechnologyEngine == directWriteTechnology)
+			{
+				_nativeLangSpeaker.messageBox("RTLvsDirectWrite",
+					_pPublicInterface->getHSelf(),
+					TEXT("RTL is not compatible with Direct Write mode. Please disable DirectWrite mode in MISC. section of Preferences dialog, restart Notepad++, and try this command again."),
+					TEXT("Cannot run RTL"),
+					MB_OK | MB_APPLMODAL);
+
+				return;
 			}
 
 			_pEditView->changeTextDirection(toRTL);

PowerEditor/src/ScintillaComponent/ScintillaEditView.cpp

@@ -312,10 +312,18 @@ void ScintillaEditView::init(HINSTANCE hInst, HWND hPere)
 	execute(SCI_INDICSETUNDER, SCE_UNIVERSAL_FOUND_STYLE_EXT4, true);
 	execute(SCI_INDICSETUNDER, SCE_UNIVERSAL_FOUND_STYLE_EXT5, true);
 
+	NppGUI& nppGui = (NppParameters::getInstance()).getNppGUI();
+
 	HMODULE hNtdllModule = ::GetModuleHandle(L"ntdll.dll");
-	FARPROC isWINE = ::GetProcAddress(hNtdllModule, "wine_get_version");
-	if ((NppParameters::getInstance()).getNppGUI()._writeTechnologyEngine == directWriteTechnology && !isWINE) // There is a performance issue under WINE when DirectWright is ON,
-	                                                                                                           // so we turn it off if user uses Notepad++ under WINE
+	FARPROC isWINE = nullptr;
+	if (hNtdllModule)
+		isWINE = ::GetProcAddress(hNtdllModule, "wine_get_version");
+
+	if (isWINE || // There is a performance issue under WINE when DirectWright is ON, so we turn it off if user uses Notepad++ under WINE
+		isTextDirectionRTL()) // RTL is not compatible with Direct Write Technology
+		nppGui._writeTechnologyEngine = defaultTechnology;
+
+	if (nppGui._writeTechnologyEngine == directWriteTechnology)
 	{
 		execute(SCI_SETTECHNOLOGY, SC_TECHNOLOGY_DIRECTWRITE);
 		// If useDirectWrite is turned off, leave the technology setting untouched,