Upgrade to ExtJS 4.0.0 - Released 04/26/2011

[extjs.git] / src / util / Offset.js

diff --git a/src/util/Offset.js b/src/util/Offset.js
new file mode 100644 (file)
index 0000000..9034040
--- /dev/null
+++ b/src/util/Offset.js
@@ -0,0 +1,61 @@
+/**
+ * @class Ext.util.Offset
+ * @ignore
+ */
+Ext.define('Ext.util.Offset', {
+
+    /* Begin Definitions */
+
+    statics: {
+        fromObject: function(obj) {
+            return new this(obj.x, obj.y);
+        }
+    },
+
+    /* End Definitions */
+
+    constructor: function(x, y) {
+        this.x = (x != null && !isNaN(x)) ? x : 0;
+        this.y = (y != null && !isNaN(y)) ? y : 0;
+
+        return this;
+    },
+
+    copy: function() {
+        return new Ext.util.Offset(this.x, this.y);
+    },
+
+    copyFrom: function(p) {
+        this.x = p.x;
+        this.y = p.y;
+    },
+
+    toString: function() {
+        return "Offset[" + this.x + "," + this.y + "]";
+    },
+
+    equals: function(offset) {
+        //<debug>
+        if(!(offset instanceof this.statics())) {
+            Ext.Error.raise('Offset must be an instance of Ext.util.Offset');
+        }
+        //</debug>
+
+        return (this.x == offset.x && this.y == offset.y);
+    },
+
+    round: function(to) {
+        if (!isNaN(to)) {
+            var factor = Math.pow(10, to);
+            this.x = Math.round(this.x * factor) / factor;
+            this.y = Math.round(this.y * factor) / factor;
+        } else {
+            this.x = Math.round(this.x);
+            this.y = Math.round(this.y);
+        }
+    },
+
+    isZero: function() {
+        return this.x == 0 && this.y == 0;
+    }
+});