Move #_setProperties() and #set() from Item to Base, rename it to #_set and use it for Tool too.

src/core/Base.js

@@ -50,6 +50,30 @@ this.Base = Base.inject(/** @lends Base# */{
 		return Base.toJson(this, options);
 	},
 
+	/**
+	 * Sets all the properties of the passed object literal to their values on
+	 * the item it is called on, and returns the item itself.
+	 */
+	set: function(props) {
+		if (props) {
+			for (var key in props)
+				if (props.hasOwnProperty(key))
+					this[key] = props[key];
+		}
+		return this;
+	},
+
+	/**
+	 * #_set() is part of the mechanism for constructors which take one object
+	 * literal describing all the properties to be set on the created instance.
+	 * It behaves the same as #set(), but only if the provided object is a plain
+	 * object. It returns undefined otherwise.
+	 */
+	_set: function(props) {
+		if (Base.isPlainObject(props))
+			return this.set(props);
+	},
+
 	statics: /** @lends Base */{
 
 		_types: {},

src/item/Group.js

@@ -69,7 +69,7 @@ var Group = this.Group = Item.extend(/** @lends Group# */{
 		// Allow Group to have children and named children
 		this._children = [];
 		this._namedChildren = {};
-		if (!this._setProperties(arg))
+		if (!this._set(arg))
 			this.addChildren(Array.isArray(arg) ? arg : arguments);
 	},
 

src/item/Item.js

@@ -133,27 +133,6 @@ var Item = this.Item = Base.extend(Callback, {
 		);
 	},
 
-	// #_setProperties is part of the mechanism for Item constructors which take
-	// one object literal describing all the properties to be set on the created
-	// instance.
-	_setProperties: function(props) {
-		if (Base.isPlainObject(props))
-			return this.set(props);
-	},
-
-	/**
-	 * Sets all the properties of the passed object literal to their values on
-	 * the item it is called on, and returns the item itself.
-	 */
-	set: function(props) {
-		if (props) {
-			for (var key in props)
-				if (props.hasOwnProperty(key))
-					this[key] = props[key];
-		}
-		return this;
-	},
-
 	_serialize: function(options, dictionary) {
 		var props = {},
 			that = this;

src/item/PlacedSymbol.js

@@ -66,7 +66,7 @@ var PlacedSymbol = this.PlacedSymbol = PlacedItem.extend(/** @lends PlacedSymbol
 		this.base(arg1 !== undefined && Point.read(arguments, 1));
 		// If we can handle setting properties through object literal, we're all
 		// set. Otherwise we need to set symbol.
-		if (!this._setProperties(arg0))
+		if (!this._set(arg0))
 			this.setSymbol(arg0 instanceof Symbol ? arg0 : new Symbol(arg0));
 	},
 

src/item/Raster.js

@@ -45,7 +45,7 @@ var Raster = this.Raster = PlacedItem.extend(/** @lends Raster# */{
 		this.base(point !== undefined && Point.read(arguments, 1));
 		// If we can handle setting properties through object literal, we're all
 		// set. Otherwise we need to check the type of object:
-		if (!this._setProperties(object)) {
+		if (!this._set(object)) {
 			if (object.getContext) {
 				this.setCanvas(object);
 			} else if (typeof object === 'string') {

src/path/CompoundPath.js

@@ -42,7 +42,7 @@ var CompoundPath = this.CompoundPath = PathItem.extend(/** @lends CompoundPath#
 		// CompoundPath has children and supports named children.
 		this._children = [];
 		this._namedChildren = {};
-		if (!this._setProperties(arg))
+		if (!this._set(arg))
 			this.addChildren(Array.isArray(arg) ? arg : arguments);
 	},
 

src/path/Path.js

@@ -54,7 +54,7 @@ var Path = this.Path = PathItem.extend(/** @lends Path# */{
 		// If it is an array, it can also be a description of a point, so
 		// check its first entry for object as well.
 		// But first see if segments are directly passed at all. If not, try
-		// _setProperties(arg).
+		// _set(arg).
 		var segments = Array.isArray(arg)
 			? typeof arg[0] === 'object'
 				? arg
@@ -64,7 +64,7 @@ var Path = this.Path = PathItem.extend(/** @lends Path# */{
 				: null;
 		this.setSegments(segments || []);
 		if (!segments)
-			this._setProperties(arg);
+			this._set(arg);
 	},
 
 	clone: function() {

src/text/TextItem.js

@@ -49,7 +49,7 @@ var TextItem = this.TextItem = Item.extend(/** @lends TextItem# */{
 		this._content = '';
 		this._lines = [];
 		if (hasProperties) {
-			this._setProperties(arg);
+			this._set(arg);
 		}
 	},
 

src/tool/Tool.js

@@ -50,11 +50,12 @@ var Tool = this.Tool = PaperScopeItem.extend(/** @lends Tool# */{
 			'onKeyDown', 'onKeyUp' ],
 
 	// DOCS: rewrite Tool constructor explanation
-	initialize: function() {
+	initialize: function(props) {
 		this.base();
 		this._firstMove = true;
 		this._count = 0;
 		this._downCount = 0;
+		this._set(props);
 	},
 
 	/**