Add border selection, fix some missing translation strings

Translations/Translations.pot

@@ -205,6 +205,43 @@ msgstr ""
 msgid "Invert"
 msgstr ""
 
+msgid "Modify"
+msgstr ""
+
+#. Found under the Select menu, in the Modify submenu. When selected, it shows a window that lets users expand the active selection.
+msgid "Expand"
+msgstr ""
+
+#. Title of a window that lets users expand the active selection.
+msgid "Expand Selection"
+msgstr ""
+
+#. Found under the Select menu, in the Modify submenu. When selected, it shows a window that lets users shrink the active selection.
+msgid "Shrink"
+msgstr ""
+
+#. Title of a window that lets users shrink the active selection.
+msgid "Shrink Selection"
+msgstr ""
+
+#. Found under the Select menu, in the Modify submenu. When selected, it shows a window that lets users create a border of the active selection.
+msgid "Border"
+msgstr ""
+
+#. Title of a window that lets users create a border of the active selection.
+msgid "Border Selection"
+msgstr ""
+
+#. Refers to a diamond-like shape.
+msgid "Diamond"
+msgstr ""
+
+msgid "Circle"
+msgstr ""
+
+msgid "Square"
+msgstr ""
+
 msgid "Grayscale View"
 msgstr ""
 

src/Classes/SelectionMap.gd

@@ -185,22 +185,34 @@ func resize_bitmap_values(
 	blit_rect(smaller_image, Rect2i(Vector2i.ZERO, new_bitmap_size), dst)
 
 
-func expand(width: int, pattern: int) -> void:
+func expand(width: int, brush: int) -> void:
 	var params := {
 		"color": Color(1, 1, 1, 1),
 		"width": width,
-		"pattern": pattern,
+		"brush": brush,
 	}
 	var gen := ShaderImageEffect.new()
 	gen.generate_image(self, OUTLINE_INLINE_SHADER, params, get_size())
 
 
-func shrink(width: int, pattern: int) -> void:
+func shrink(width: int, brush: int) -> void:
 	var params := {
 		"color": Color(0),
-		"inside": true,
 		"width": width,
-		"pattern": pattern,
+		"brush": brush,
+		"inside": true,
+	}
+	var gen := ShaderImageEffect.new()
+	gen.generate_image(self, OUTLINE_INLINE_SHADER, params, get_size())
+
+
+func border(width: int, brush: int) -> void:
+	var params := {
+		"color": Color(1, 1, 1, 1),
+		"width": width,
+		"brush": brush,
+		"inside": true,
+		"keep_border_only": true,
 	}
 	var gen := ShaderImageEffect.new()
 	gen.generate_image(self, OUTLINE_INLINE_SHADER, params, get_size())

src/Shaders/Effects/OutlineInline.gdshader

@@ -4,9 +4,10 @@ render_mode unshaded;
 
 uniform vec4 color : source_color = vec4(1.0);
 uniform float width : hint_range(0, 10, 1) = 1.0;
-// uniform_data pattern type:: OptionButton [Diamond||Circle||Square]
-uniform int pattern : hint_range(0, 2) = 0;
+// uniform_data brush type:: OptionButton [Diamond||Circle||Square]
+uniform int brush : hint_range(0, 2) = 0;
 uniform bool inside = false;
+uniform bool keep_border_only = false;
 uniform sampler2D selection : filter_nearest;
 
 bool is_zero_approx(float num) {
@@ -17,11 +18,11 @@ bool has_contrary_neighbour(vec2 uv, vec2 texture_pixel_size, sampler2D tex) {
 	for (float i = -ceil(width); i <= ceil(width); i++) {
 		float offset;
 
-		if (pattern == 0) {
+		if (brush == 0) {
 			offset = width - abs(i);
-		} else if (pattern == 1) {
+		} else if (brush == 1) {
 			offset = floor(sqrt(pow(width + 0.5, 2) - i * i));
-		} else if (pattern == 2) {
+		} else if (brush == 2) {
 			offset = width;
 		}
 
@@ -51,6 +52,9 @@ void fragment() {
 			output.a += (1.0 - output.a) * color.a;
 		}
 	}
+	else if (keep_border_only) {
+		output.a = 0.0;
+	}
 
 	COLOR = mix(original_color, output, selection_color.a);
 }

src/UI/Dialogs/ImageEffects/OutlineDialog.gd

@@ -31,7 +31,7 @@ func commit_action(cel: Image, project := Global.current_project) -> void:
 	var params := {
 		"color": color,
 		"width": anim_thickness,
-		"pattern": pattern,
+		"brush": pattern,
 		"inside": inside_image,
 		"selection": selection_tex
 	}

src/UI/Dialogs/ImageEffects/OutlineDialog.tscn

@@ -51,16 +51,15 @@ size_flags_horizontal = 3
 [node name="PatternLabel" type="Label" parent="VBoxContainer/OutlineOptions" index="4"]
 layout_mode = 2
 size_flags_horizontal = 3
-text = "Pattern:"
+text = "Brush:"
 
 [node name="PatternOptionButton" type="OptionButton" parent="VBoxContainer/OutlineOptions" index="5"]
 layout_mode = 2
 size_flags_horizontal = 3
 mouse_default_cursor_shape = 2
-item_count = 3
 selected = 0
+item_count = 3
 popup/item_0/text = "Diamond"
-popup/item_0/id = 0
 popup/item_1/text = "Circle"
 popup/item_1/id = 1
 popup/item_2/text = "Square"

src/UI/Dialogs/ModifySelection.gd

@@ -1,14 +1,16 @@
 extends ConfirmationDialog
 
-enum Types { EXPAND, SHRINK }
+enum Types { EXPAND, SHRINK, BORDER }
 
 @export var type := Types.EXPAND:
 	set(value):
 		type = value
 		if type == Types.EXPAND:
 			title = "Expand Selection"
-		else:
+		elif type == Types.SHRINK:
 			title = "Shrink Selection"
+		else:
+			title = "Border Selection"
 
 @onready var width_slider: ValueSlider = $GridContainer/WidthSlider
 @onready var brush_option_button: OptionButton = $GridContainer/BrushOptionButton
@@ -31,8 +33,10 @@ func _on_confirmed() -> void:
 	project.selection_map.crop(project.size.x, project.size.y)
 	if type == Types.EXPAND:
 		project.selection_map.expand(width, brush)
-	else:
+	elif type == Types.SHRINK:
 		project.selection_map.shrink(width, brush)
+	else:
+		project.selection_map.border(width, brush)
 	selection_node.big_bounding_rectangle = project.selection_map.get_used_rect()
 	project.selection_offset = Vector2.ZERO
 	selection_node.commit_undo("Modify Selection", undo_data_tmp)

src/UI/TopMenuContainer/TopMenuContainer.gd

@@ -460,6 +460,7 @@ func _setup_selection_modify_submenu(item: String) -> void:
 	selection_modify_submenu.set_name("selection_modify_submenu")
 	selection_modify_submenu.add_item("Expand")
 	selection_modify_submenu.add_item("Shrink")
+	selection_modify_submenu.add_item("Border")
 	selection_modify_submenu.id_pressed.connect(_selection_modify_submenu_id_pressed)
 	select_menu.add_child(selection_modify_submenu)
 	select_menu.add_submenu_item(item, selection_modify_submenu.get_name())