Partial localization support - Greek Language

Also added a Preferences window, where the user can change Pixelorama's language. Note that the .csv's delimiter is Tab and not comma.

Main.tscn

@@ -1294,7 +1294,7 @@ margin_bottom = 42.0
 margin_top = 5.0
 margin_right = 46.0
 margin_bottom = 19.0
-text = "Width: "
+text = "Width:"
 
 [node name="WidthValue" type="SpinBox" parent="CreateNewImage/VBoxContainer/WidthCont"]
 margin_left = 50.0
@@ -1402,7 +1402,6 @@ margin_right = 200.0
 margin_bottom = 114.0
 
 [node name="VBoxContainer" type="VBoxContainer" parent="ScaleImage"]
-editor/display_folded = true
 margin_left = 8.0
 margin_top = 8.0
 margin_right = 192.0
@@ -1414,7 +1413,6 @@ margin_bottom = 14.0
 text = "Image Size"
 
 [node name="WidthCont" type="HBoxContainer" parent="ScaleImage/VBoxContainer"]
-editor/display_folded = true
 margin_top = 18.0
 margin_right = 184.0
 margin_bottom = 42.0
@@ -1423,7 +1421,7 @@ margin_bottom = 42.0
 margin_top = 5.0
 margin_right = 46.0
 margin_bottom = 19.0
-text = "Width: "
+text = "Width:"
 
 [node name="WidthValue" type="SpinBox" parent="ScaleImage/VBoxContainer/WidthCont"]
 margin_left = 50.0
@@ -1474,6 +1472,30 @@ text = "Nearest"
 items = [ "Nearest", null, false, 0, null, "Bilinear", null, false, 1, null, "Cubic", null, false, 2, null, "Trilinear", null, false, 3, null, "Lanczos", null, true, 4, null ]
 selected = 0
 
+[node name="PreferencesDialog" type="AcceptDialog" parent="."]
+editor/display_folded = true
+margin_right = 200.0
+margin_bottom = 70.0
+window_title = "Preferences"
+
+[node name="LanguageContainer" type="HBoxContainer" parent="PreferencesDialog"]
+margin_right = 40.0
+margin_bottom = 40.0
+
+[node name="LanguageLabel" type="Label" parent="PreferencesDialog/LanguageContainer"]
+margin_top = 12.0
+margin_right = 57.0
+margin_bottom = 27.0
+text = "Language:"
+
+[node name="LanguageOption" type="OptionButton" parent="PreferencesDialog/LanguageContainer"]
+margin_left = 61.0
+margin_right = 142.0
+margin_bottom = 40.0
+text = "English"
+items = [ "System Language", null, false, 0, null, "Greek", null, false, 1, null, "English", null, false, 2, null ]
+selected = 0
+
 [node name="AboutDialog" type="AcceptDialog" parent="."]
 editor/display_folded = true
 margin_right = 284.0
@@ -1610,6 +1632,8 @@ dialog_text = "Are you sure you want to exit Pixelorama?"
 [connection signal="popup_hide" from="ExportSprites" to="." method="_can_draw_true"]
 [connection signal="confirmed" from="ScaleImage" to="." method="_on_ScaleImage_confirmed"]
 [connection signal="popup_hide" from="ScaleImage" to="." method="_can_draw_true"]
+[connection signal="popup_hide" from="PreferencesDialog" to="." method="_can_draw_true"]
+[connection signal="item_selected" from="PreferencesDialog/LanguageContainer/LanguageOption" to="." method="_on_LanguageOption_item_selected"]
 [connection signal="popup_hide" from="AboutDialog" to="." method="_can_draw_true"]
 [connection signal="pressed" from="AboutDialog/AboutUI/Links/LinkButtons/Website" to="AboutDialog" method="_on_Website_pressed"]
 [connection signal="pressed" from="AboutDialog/AboutUI/Links/LinkButtons/GitHub" to="AboutDialog" method="_on_GitHub_pressed"]

Scripts/Main.gd

@@ -1,6 +1,7 @@
 extends Control
 
-var config_cache : ConfigFile = ConfigFile.new()
+var config_cache := ConfigFile.new()
+var loaded_locales : Array
 var current_save_path := ""
 var current_export_path := ""
 var opensprite_file_selected := false
@@ -23,9 +24,25 @@ func _ready() -> void:
 	# This property is only available in 3.2alpha or later, so use `set()` to fail gracefully if it doesn't exist.
 	OS.set("min_window_size", Vector2(1152, 648))
 
-	# Restore the window position/size if values are present in the configuration cache
+	#Make sure locales are always sorted, in the same order
+	loaded_locales = TranslationServer.get_loaded_locales()
+	loaded_locales.sort()
+
+	# Load settings from the config file
 	config_cache.load("user://cache.ini")
 
+	# Load language
+	if config_cache.has_section_key("preferences", "locale"):
+		var saved_locale : String = config_cache.get_value("preferences", "locale")
+		TranslationServer.set_locale(saved_locale)
+
+		# Set the language option menu's default selected option to the loaded locale
+		var locale_index := loaded_locales.find(saved_locale)
+		$PreferencesDialog/LanguageContainer/LanguageOption.selected = locale_index + 1
+	else: # If the user doesn't have a language preference, set it to their OS' locale
+		TranslationServer.set_locale(OS.get_locale())
+
+	# Restore the window position/size if values are present in the configuration cache
 	if config_cache.has_section_key("window", "screen"):
 		OS.current_screen = config_cache.get_value("window", "screen")
 	if config_cache.has_section_key("window", "maximized"):
@@ -38,32 +55,33 @@ func _ready() -> void:
 			OS.window_size = config_cache.get_value("window", "size")
 
 	var file_menu_items := {
-		"New..." : KEY_MASK_CTRL + KEY_N,
-		"Open..." : KEY_MASK_CTRL + KEY_O,
-		"Save..." : KEY_MASK_CTRL + KEY_S,
-		"Save as..." : KEY_MASK_SHIFT + KEY_MASK_CTRL + KEY_S,
-		"Import..." : KEY_MASK_CTRL + KEY_I,
-		"Export PNG..." : KEY_MASK_CTRL + KEY_E,
-		"Export PNG as..." : KEY_MASK_SHIFT + KEY_MASK_CTRL + KEY_E,
-		"Quit" : KEY_MASK_CTRL + KEY_Q
+		tr("New...") : KEY_MASK_CTRL + KEY_N,
+		tr("Open...") : KEY_MASK_CTRL + KEY_O,
+		tr("Save...") : KEY_MASK_CTRL + KEY_S,
+		tr("Save as...") : KEY_MASK_SHIFT + KEY_MASK_CTRL + KEY_S,
+		tr("Import PNG...") : KEY_MASK_CTRL + KEY_I,
+		tr("Export PNG...") : KEY_MASK_CTRL + KEY_E,
+		tr("Export PNG as...") : KEY_MASK_SHIFT + KEY_MASK_CTRL + KEY_E,
+		tr("Quit") : KEY_MASK_CTRL + KEY_Q
 		}
 	var edit_menu_items := {
-		"Undo" : KEY_MASK_CTRL + KEY_Z,
-		"Redo" : KEY_MASK_SHIFT + KEY_MASK_CTRL + KEY_Z,
-		"Scale Image" : 0,
-		"Crop Image" : 0,
-		"Clear Selection" : 0,
-		"Flip Horizontal": KEY_MASK_SHIFT + KEY_H,
-		"Flip Vertical": KEY_MASK_SHIFT + KEY_V
+		tr("Undo") : KEY_MASK_CTRL + KEY_Z,
+		tr("Redo") : KEY_MASK_SHIFT + KEY_MASK_CTRL + KEY_Z,
+		tr("Scale Image") : 0,
+		tr("Crop Image") : 0,
+		tr("Clear Selection") : 0,
+		tr("Flip Horizontal") : KEY_MASK_SHIFT + KEY_H,
+		tr("Flip Vertical") : KEY_MASK_SHIFT + KEY_V,
+		tr("Preferences") : 0
 		}
 	var view_menu_items := {
-		"Tile Mode" : KEY_MASK_CTRL + KEY_T,
-		"Show Grid" : KEY_MASK_CTRL + KEY_G,
-		"Show Rulers": KEY_MASK_CTRL + KEY_R,
-		"Show Guides": KEY_MASK_CTRL + KEY_Y
+		tr("Tile Mode") : KEY_MASK_CTRL + KEY_T,
+		tr("Show Grid") : KEY_MASK_CTRL + KEY_G,
+		tr("Show Rulers") : KEY_MASK_CTRL + KEY_R,
+		tr("Show Guides") : KEY_MASK_CTRL + KEY_Y
 		}
 	var help_menu_items := {
-		"About Pixelorama" : 0
+		tr("About Pixelorama") : 0
 		}
 	var file_menu : PopupMenu = Global.file_menu.get_popup()
 	var edit_menu : PopupMenu = Global.edit_menu.get_popup()
@@ -259,6 +277,9 @@ func edit_menu_id_pressed(id : int) -> void:
 			canvas.layers[canvas.current_layer_index][0].flip_y()
 			canvas.layers[canvas.current_layer_index][0].lock()
 			canvas.handle_redo("Draw")
+		7: #Preferences
+			$PreferencesDialog.popup_centered()
+			Global.can_draw = false
 
 func view_menu_id_pressed(id : int) -> void:
 	match id:
@@ -588,6 +609,15 @@ func _on_ScaleImage_confirmed() -> void:
 	Global.undo_redo.add_do_method(Global, "redo", [Global.canvas])
 	Global.undo_redo.commit_action()
 
+func _on_LanguageOption_item_selected(ID : int) -> void:
+	if ID == 0:
+		TranslationServer.set_locale(OS.get_locale())
+	else:
+		TranslationServer.set_locale(loaded_locales[ID - 1])
+
+	config_cache.set_value("preferences", "locale", TranslationServer.get_locale())
+	config_cache.save("user://cache.ini")
+
 func _on_ImportSprites_popup_hide() -> void:
 	if !opensprite_file_selected:
 		Global.can_draw = true
@@ -973,3 +1003,4 @@ func _exit_tree() -> void:
 	config_cache.set_value("window", "position", OS.window_position)
 	config_cache.set_value("window", "size", OS.window_size)
 	config_cache.save("user://cache.ini")
+

Translations/#Translations.csv

@@ -0,0 +1,41 @@
+id	en	el
+OK	OK	Εντάξει
+Cancel	Cancel	Άκυρο
+Open	Open	Άνοιγμα
+Please Confirm...	Please Confirm...	Παρακαλώ επιβεβαιώστε...
+Width:	Width:	Πλάτος:
+Height:	Height:	Ύψος:
+File	File	Αρχείο
+Edit	Edit	Επεξεργασία
+View	View	Προβολή
+Help	Help	Βοήθεια
+New...	New...	Νέο...
+Open...	Open...	Άνοιγμα...
+Save...	Save...	Αποθήκευση...
+Save as...	Save as...	Αποθήκευση ως...
+Import PNG...	Import PNG...	Εισαγωγή PNG...
+Export PNG...	Export PNG...	Εξαγωγή PNG...
+Export PNG as...	Export PNG as...	Εξαγωγή PNG ως...
+Quit	Quit	Έξοδος
+Undo	Undo	Αναίρεση
+Redo	Redo	Ακύρωση αναίρεσης
+Scale Image	Scale Image	Κλιμάκωση εικόνας
+Crop Image	Crop Image	Περικοπή
+Clear Selection	Clear Selection	Καθαρισμός επιλογής
+Flip Horizontal	Flip Horizontal	Οριζόντια αναστροφή
+Flip Vertical	Flip Vertical	Κάθετη αναστροφή
+Preferences	Preferences	Προτιμήσεις
+Language:	Language:	Γλώσσα:
+System Language	System Language	Γλώσσα Συστήματος
+English	English	Αγγλικά
+Greek	Greek	Ελληνικά
+Tile Mode	Tile Mode	Λειτουργία μοτίβου
+Show Grid	Show Grid	Εμφάνιση πλέγματος
+Show Rulers	Show Rulers	Εμφάνιση χαράκων
+Show Guides	Show Guides	Εμφάνιση οδηγών
+About Pixelorama	About Pixelorama	Σχετικά με το Pixelorama
+Utility Tools	Utility Tools	Βοηθητικά Εργαλεία
+Draw Tools	Draw Tools	Εργαλεία Ζωγραφικής
+Left tool options	Left tool options	Επιλογές αριστερού εργαλείου
+Right tool options	Right tool options	Επιλογές δεξιού εργαλείου
+Layers	Layers	Στρώσεις

Translations/#Translations.csv.import

@@ -0,0 +1,16 @@
+[remap]
+
+importer="csv_translation"
+type="Translation"
+
+[deps]
+
+files=[ "res://Translations/#Translations.en.translation", "res://Translations/#Translations.el.translation" ]
+
+source_file="res://Translations/#Translations.csv"
+dest_files=[ "res://Translations/#Translations.en.translation", "res://Translations/#Translations.el.translation" ]
+
+[params]
+
+compress=true
+delimiter=2

project.godot

@@ -178,6 +178,11 @@ right_colorpicker_tool={
  ]
 }
 
+[locale]
+
+translations=PoolStringArray( "res://Translations/#Translations.en.translation", "res://Translations/#Translations.el.translation" )
+locale_filter=[ 0, [  ] ]
+
 [rendering]
 
 quality/driver/driver_name="GLES2"