Add a "Share brush config" buttons to BaseTool

src/Autoload/Tools.gd

@@ -1,6 +1,8 @@
 extends Node
 
 signal color_changed(color, button)
+signal flip_rotate(flip_x, flip_y, rotate_90, rotate_180, rotate_270)
+signal share_brush_config(_brush, _size, _flip_x, _flip_y, _rotate_90, _rotate_180, _rotate_270)
 
 enum Dynamics { NONE, PRESSURE, VELOCITY }
 

src/Tools/BaseDraw.gd

@@ -3,6 +3,13 @@ extends BaseTool
 var _brush := Brushes.get_default_brush()
 var _brush_size := 1
 var _brush_size_dynamics := 1
+var _brush_flip_x := false
+var _brush_flip_y := false
+var _brush_rotate_90 := false
+var _brush_rotate_180 := false
+var _brush_rotate_270 := false
+var _i_shared_my_brush := false
+var _brush_sharing_check := false
 var _cache_limit := 3
 var _brush_interpolate := 0
 var _brush_image := Image.new()
@@ -37,6 +44,7 @@ func _ready() -> void:
 	Global.global_tool_options.dynamics_changed.connect(_reset_dynamics)
 	Tools.color_changed.connect(_on_Color_changed)
 	Global.brushes_popup.brush_removed.connect(_on_Brush_removed)
+	Tools.share_brush_config.connect(_update_brush_config)
 
 
 func _on_BrushType_pressed() -> void:
@@ -54,17 +62,24 @@ func _on_BrushType_pressed() -> void:
 		if child is GridContainer:
 			child.columns = columns
 	Global.brushes_popup.popup(Rect2(pop_position, Vector2(size_x, size_y)))
+	Tools.flip_rotate.emit(
+		_brush_flip_x, _brush_flip_y, _brush_rotate_90, _brush_rotate_180, _brush_rotate_270
+	)
 
 
 func _on_Brush_selected(brush: Brushes.Brush) -> void:
 	_brush = brush
+	if _brush_sharing_check == true:
+		_sharing_brush()
 	update_brush()
 	save_config()
 
 
 func _on_BrushSize_value_changed(value: float) -> void:
 	if _brush_size != int(value):
 		_brush_size = int(value)
+		if _brush_sharing_check == true:
+			_sharing_brush()
 		_brush_size_dynamics = _brush_size
 		if Tools.dynamics_size != Tools.Dynamics.NONE:
 			_brush_size_dynamics = Tools.brush_size_min
@@ -122,9 +137,43 @@ func set_config(config: Dictionary) -> void:
 func update_config() -> void:
 	$Brush/BrushSize.value = _brush_size
 	$ColorInterpolation.value = _brush_interpolate
+	$Flip/FlipX.button_pressed = _brush_flip_x
+	$Flip/FlipY.button_pressed = _brush_flip_y
+	$Rotate/Rotate90.button_pressed = _brush_rotate_90
+	$Rotate/Rotate180.button_pressed = _brush_rotate_180
+	$Rotate/Rotate270.button_pressed = _brush_rotate_270
 	update_brush()
 
 
+func _update_brush_config(
+	b_brush, b_size, b_flip_x, b_flip_y, b_rotate_90, b_rotate_180, b_rotate_270
+) -> void:
+	if _i_shared_my_brush == false:
+		_brush = b_brush
+		_brush_size = b_size
+		_brush_flip_x = b_flip_x
+		_brush_flip_y = b_flip_y
+		_brush_rotate_90 = b_rotate_90
+		_brush_rotate_180 = b_rotate_180
+		_brush_rotate_270 = b_rotate_270
+		update_config()
+	else:
+		_i_shared_my_brush = false
+
+
+func _sharing_brush() -> void:
+	_i_shared_my_brush = true
+	Tools.share_brush_config.emit(
+		_brush,
+		_brush_size,
+		_brush_flip_x,
+		_brush_flip_y,
+		_brush_rotate_90,
+		_brush_rotate_180,
+		_brush_rotate_270
+	)
+
+
 func update_brush() -> void:
 	$Brush/BrushSize.suffix = "px"  # Assume we are using default brushes
 	match _brush.type:
@@ -151,6 +200,7 @@ func update_brush() -> void:
 				var random := randi() % _brush.random.size()
 				_orignal_brush_image = _brush.random[random]
 			_brush_image = _create_blended_brush_image(_orignal_brush_image)
+			update_brush_image_flip_and_rotate()
 			_brush_texture = ImageTexture.create_from_image(_brush_image)
 			update_mirror_brush()
 			_stroke_dimensions = _brush_image.get_size()
@@ -166,6 +216,7 @@ func update_random_image() -> void:
 	var random := randi() % _brush.random.size()
 	_brush_image = _create_blended_brush_image(_brush.random[random])
 	_orignal_brush_image = _brush_image
+	update_brush_image_flip_and_rotate()
 	_brush_texture = ImageTexture.create_from_image(_brush_image)
 	_indicator = _create_brush_indicator()
 	update_mirror_brush()
@@ -180,6 +231,19 @@ func update_mirror_brush() -> void:
 	_mirror_brushes.xy.flip_y()
 
 
+func update_brush_image_flip_and_rotate() -> void:
+	if _brush_flip_x == true:
+		_brush_image.flip_x()
+	if _brush_flip_y == true:
+		_brush_image.flip_y()
+	if _brush_rotate_90 == true:
+		_brush_image.rotate_90(CLOCKWISE)
+	if _brush_rotate_180 == true:
+		_brush_image.rotate_180()
+	if _brush_rotate_270 == true:
+		_brush_image.rotate_90(COUNTERCLOCKWISE)
+
+
 func update_mask(can_skip := true) -> void:
 	if can_skip and Tools.dynamics_alpha == Tools.Dynamics.NONE:
 		if _mask:
@@ -241,6 +305,7 @@ func draw_end(pos: Vector2i) -> void:
 	match _brush.type:
 		Brushes.FILE, Brushes.RANDOM_FILE, Brushes.CUSTOM:
 			_brush_image = _create_blended_brush_image(_orignal_brush_image)
+			update_brush_image_flip_and_rotate()
 			_brush_texture = ImageTexture.create_from_image(_brush_image)
 			update_mirror_brush()
 			_stroke_dimensions = _brush_image.get_size()
@@ -279,6 +344,7 @@ func _prepare_tool() -> void:
 		Brushes.FILE, Brushes.RANDOM_FILE, Brushes.CUSTOM:
 			# save _brush_image for safe keeping
 			_brush_image = _create_blended_brush_image(_orignal_brush_image)
+			update_brush_image_flip_and_rotate()
 			_brush_texture = ImageTexture.create_from_image(_brush_image)
 			update_mirror_brush()
 			_stroke_dimensions = _brush_image.get_size()
@@ -707,3 +773,44 @@ func _pick_color(pos: Vector2i) -> void:
 		else MOUSE_BUTTON_RIGHT
 	)
 	Tools.assign_color(color, button, false)
+
+
+func _on_flip_x_toggled(button_pressed: bool) -> void:
+	_brush_flip_x = button_pressed
+	if _brush_sharing_check == true:
+		_sharing_brush()
+	update_brush()
+
+
+func _on_flip_y_toggled(button_pressed: bool) -> void:
+	_brush_flip_y = button_pressed
+	if _brush_sharing_check == true:
+		_sharing_brush()
+	update_brush()
+
+
+func _on_rotate_90_toggled(button_pressed: bool) -> void:
+	_brush_rotate_90 = button_pressed
+	if _brush_sharing_check == true:
+		_sharing_brush()
+	update_brush()
+
+
+func _on_rotate_180_toggled(button_pressed: bool) -> void:
+	_brush_rotate_180 = button_pressed
+	if _brush_sharing_check == true:
+		_sharing_brush()
+	update_brush()
+
+
+func _on_rotate_270_toggled(button_pressed: bool) -> void:
+	_brush_rotate_270 = button_pressed
+	if _brush_sharing_check == true:
+		_sharing_brush()
+	update_brush()
+
+
+func _on_share_brush_config_toggled(button_pressed: bool) -> void:
+	_brush_sharing_check = button_pressed
+	if _brush_sharing_check == true:
+		_sharing_brush()

src/Tools/BaseDraw.tscn

@@ -25,7 +25,33 @@ anti_aliasing = false
 [node name="ToolOptions" instance=ExtResource("2")]
 script = ExtResource("3")
 
-[node name="Brush" type="HBoxContainer" parent="." index="2"]
+[node name="Flip" type="HBoxContainer" parent="." index="2"]
+layout_mode = 2
+
+[node name="FlipX" type="CheckBox" parent="Flip" index="0"]
+layout_mode = 2
+text = "Flip X"
+
+[node name="FlipY" type="CheckBox" parent="Flip" index="1"]
+layout_mode = 2
+text = "Flip Y"
+
+[node name="Rotate" type="HBoxContainer" parent="." index="3"]
+layout_mode = 2
+
+[node name="Rotate90" type="CheckBox" parent="Rotate" index="0"]
+layout_mode = 2
+text = "R 90"
+
+[node name="Rotate180" type="CheckBox" parent="Rotate" index="1"]
+layout_mode = 2
+text = "R 180"
+
+[node name="Rotate270" type="CheckBox" parent="Rotate" index="2"]
+layout_mode = 2
+text = "R 270"
+
+[node name="Brush" type="HBoxContainer" parent="." index="4"]
 layout_mode = 2
 alignment = 1
 
@@ -59,12 +85,22 @@ suffix = "px"
 global_increment_action = "brush_size_increment"
 global_decrement_action = "brush_size_decrement"
 
-[node name="ColorInterpolation" parent="." index="3" instance=ExtResource("1")]
+[node name="ColorInterpolation" parent="." index="5" instance=ExtResource("1")]
 visible = false
 layout_mode = 2
 tooltip_text = "0: Color from the brush itself, 100: the currently selected color"
 prefix = "Brush color from:"
 
+[node name="ShareBrushConfig" type="CheckBox" parent="." index="6"]
+layout_mode = 2
+text = "Share Brush Config"
+
+[connection signal="toggled" from="Flip/FlipX" to="." method="_on_flip_x_toggled"]
+[connection signal="toggled" from="Flip/FlipY" to="." method="_on_flip_y_toggled"]
+[connection signal="toggled" from="Rotate/Rotate90" to="." method="_on_rotate_90_toggled"]
+[connection signal="toggled" from="Rotate/Rotate180" to="." method="_on_rotate_180_toggled"]
+[connection signal="toggled" from="Rotate/Rotate270" to="." method="_on_rotate_270_toggled"]
 [connection signal="pressed" from="Brush/Type" to="." method="_on_BrushType_pressed"]
 [connection signal="value_changed" from="Brush/BrushSize" to="." method="_on_BrushSize_value_changed"]
 [connection signal="value_changed" from="ColorInterpolation" to="." method="_on_InterpolateFactor_value_changed"]
+[connection signal="toggled" from="ShareBrushConfig" to="." method="_on_share_brush_config_toggled"]

src/Tools/DesignTools/EllipseTool.tscn

@@ -5,3 +5,12 @@
 
 [node name="ToolOptions" instance=ExtResource("1")]
 script = ExtResource("2")
+
+[node name="Flip" parent="." index="4"]
+visible = false
+
+[node name="Rotate" parent="." index="5"]
+visible = false
+
+[node name="ShareBrushConfig" parent="." index="8"]
+visible = false

src/Tools/DesignTools/LineTool.tscn

@@ -16,7 +16,16 @@ suffix = "px"
 global_increment_action = "brush_size_increment"
 global_decrement_action = "brush_size_decrement"
 
-[node name="Brush" parent="." index="3"]
+[node name="Flip" parent="." index="3"]
+visible = false
+
+[node name="Rotate" parent="." index="4"]
+visible = false
+
+[node name="Brush" parent="." index="5"]
+visible = false
+
+[node name="ShareBrushConfig" parent="." index="7"]
 visible = false
 
 [connection signal="value_changed" from="ThicknessSlider" to="." method="_on_Thickness_value_changed"]

src/Tools/DesignTools/Pencil.tscn

@@ -7,23 +7,23 @@
 [node name="ToolOptions" instance=ExtResource("1")]
 script = ExtResource("3")
 
-[node name="Overwrite" type="CheckBox" parent="." index="4"]
+[node name="Overwrite" type="CheckBox" parent="." index="6"]
 layout_mode = 2
 tooltip_text = "Overwrites color instead of blending it. This option is only relevant with colors that are not fully opaque"
 mouse_default_cursor_shape = 2
 text = "Overwrite color"
 
-[node name="FillInside" type="CheckBox" parent="." index="5"]
+[node name="FillInside" type="CheckBox" parent="." index="7"]
 layout_mode = 2
 mouse_default_cursor_shape = 2
 text = "Fill inside"
 
-[node name="SpacingMode" type="CheckBox" parent="." index="6"]
+[node name="SpacingMode" type="CheckBox" parent="." index="8"]
 layout_mode = 2
 mouse_default_cursor_shape = 2
 text = "Spacing"
 
-[node name="Spacing" parent="." index="7" instance=ExtResource("2")]
+[node name="Spacing" parent="." index="9" instance=ExtResource("2")]
 visible = false
 layout_mode = 2
 allow_greater = true

src/Tools/DesignTools/RectangleTool.tscn

@@ -5,3 +5,12 @@
 
 [node name="ToolOptions" instance=ExtResource("1")]
 script = ExtResource("2")
+
+[node name="Flip" parent="." index="4"]
+visible = false
+
+[node name="Rotate" parent="." index="5"]
+visible = false
+
+[node name="ShareBrushConfig" parent="." index="8"]
+visible = false

src/UI/Buttons/BrushButton.gd

@@ -3,6 +3,10 @@ extends BaseButton
 var brush = Global.brushes_popup.Brush.new()
 
 
+func _ready() -> void:
+	Tools.flip_rotate.connect(_flip_rotate_updated)
+
+
 func _on_BrushButton_pressed() -> void:
 	# Delete the brush on middle mouse press
 	if Input.is_action_just_released("middle_mouse"):
@@ -26,3 +30,18 @@ func _on_BrushButton_mouse_entered() -> void:
 func _on_BrushButton_mouse_exited() -> void:
 	if brush.type == Global.brushes_popup.CUSTOM:
 		$DeleteButton.visible = false
+
+
+func _flip_rotate_updated(
+	flip_x: bool, flip_y: bool, rotate_90: bool, rotate_180: bool, rotate_270: bool
+):
+	$BrushTexture.set_flip_h(flip_x)
+	$BrushTexture.set_flip_v(flip_y)
+	var brush_texture_rotation = 0
+	if rotate_90 == true:
+		brush_texture_rotation += 90
+	if rotate_180 == true:
+		brush_texture_rotation += 180
+	if rotate_270 == true:
+		brush_texture_rotation += 270
+	$BrushTexture.rotation_degrees = brush_texture_rotation

src/UI/Buttons/BrushButton.tscn

@@ -19,6 +19,7 @@ offset_left = 2.0
 offset_top = 2.0
 offset_right = -2.0
 offset_bottom = -2.0
+pivot_offset = Vector2(16, 16)
 expand_mode = 1
 stretch_mode = 6