Moving spaceHorizontally and spaceVertically to util.js

src/js/util.js

@@ -15,3 +15,58 @@ export function normalizeBBox(box) {
     ay: box.cy
   }, box);
 }
+
+export function spaceHorizontally(items, options) {
+  var verticalCenter = 0;
+
+  options = _.defaults(options || {}, {
+    padding: 0
+  });
+
+  _.reduce(items, (offset, item) => {
+    var box;
+
+    item.transform(Snap.matrix()
+      .translate(offset, 0));
+
+    box = normalizeBBox(item.getBBox());
+    verticalCenter = Math.max(verticalCenter, box.ay);
+
+    return offset + options.padding + box.width;
+  }, 0);
+
+  for (var item of items) {
+    let box = normalizeBBox(item.getBBox());
+
+    item.transform(Snap.matrix()
+      .add(item.transform().localMatrix)
+      .translate(0, verticalCenter - box.ay));
+  }
+}
+
+export function spaceVertically(items, options) {
+  var horizontalCenter = 0;
+
+  options = _.defaults(options || {}, {
+    padding: 0
+  });
+
+  _.reduce(items, (offset, item) => {
+    var box;
+
+    item.transform(Snap.matrix()
+      .translate(0, offset));
+
+    box = item.getBBox();
+
+    horizontalCenter = Math.max(horizontalCenter, box.cx);
+
+    return offset + options.padding + box.height;
+  }, 0);
+
+  for (var item of items) {
+    item.transform(Snap.matrix()
+      .add(item.transform().localMatrix)
+      .translate(horizontalCenter - item.getBBox().cx, 0));
+  }
+}