Add ol.style.Stroke constructor

src/ol/style/strokestyle.js

@@ -0,0 +1,54 @@
+goog.provide('ol.style.Stroke');
+
+goog.require('ol.color');
+
+
+/**
+ * @typedef {{color: (ol.Color|string),
+ *            width: number}}
+ */
+ol.style.StrokeOptions;
+
+
+
+/**
+ * @constructor
+ * @param {ol.style.StrokeOptions} options Options.
+ */
+ol.style.Stroke = function(options) {
+
+  /**
+   * @type {ol.Color|string}
+   */
+  this.color = options.color;
+
+  /**
+   * @type {number}
+   */
+  this.width = options.width;
+};
+
+
+/**
+ * @param {ol.style.Stroke} strokeStyle1 Stroke style 1.
+ * @param {ol.style.Stroke} strokeStyle2 Stroke style 2.
+ * @return {boolean} Equals.
+ */
+ol.style.Stroke.equals = function(strokeStyle1, strokeStyle2) {
+  if (!goog.isNull(strokeStyle1)) {
+    if (!goog.isNull(strokeStyle2)) {
+      return strokeStyle1 === strokeStyle2 ||
+          (ol.color.stringOrColorEquals(strokeStyle1.color,
+                                        strokeStyle2.color) &&
+           strokeStyle1.width == strokeStyle2.width);
+    } else {
+      return false;
+    }
+  } else {
+    if (!goog.isNull(strokeStyle2)) {
+      return false;
+    } else {
+      return true;
+    }
+  }
+};