import js directory from jsrrdgraph for client side graph rendering

Source: https://github.com/manuelluis/jsrrdgraph@276b880

1 files changed, 76 insertions, 0 deletions

diff --git a/js/Color.js b/js/Color.js
new file mode 100644
index 0000000..e294f65
--- /dev/null
+++ b/js/Color.js
@@ -0,0 +1,76 @@
+/**
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ **/
+
+"use strict";
+
+/**
+ * ColorError
+ * @constructor
+ */
+var ColorError = function (message)
+{
+    this.prototype = Error.prototype;
+    this.name = "ColorError";
+    this.message = (message) ? message : "Error";
+};
+
+/**
+ * Color
+ * @constructor
+ */
+function Color(str)
+{
+  var bits;
+
+        this.r = 0;
+        this.g = 0;
+        this.b = 0;
+        this.a = 1.0;
+
+  if ((bits = /^#?([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])$/.exec(str))) {
+    this.r = parseInt(bits[1]+bits[1], 16);
+                this.g = parseInt(bits[2]+bits[2], 16);
+                this.b = parseInt(bits[3]+bits[3], 16);
+  } else if ((bits = /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/.exec(str))) {
+    this.r = parseInt(bits[1], 16);
+                this.g = parseInt(bits[2], 16);
+                this.b = parseInt(bits[3], 16);
+  } else if ((bits = /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/.exec(str))) {
+    this.r = parseInt(bits[1], 16);
+                this.g = parseInt(bits[2], 16);
+                this.b = parseInt(bits[3], 16);
+                this.a = parseInt(bits[4], 16)/255;
+  } else if ((bits = /^rgb\((\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\)$/.exec(str))) {
+    this.r = parseInt(bits[1], 10);
+                this.g = parseInt(bits[2], 10); 
+                this.b = parseInt(bits[3], 10);
+  } else if ((bits = /^rgba\((\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*([0-9.]+)\)$/.exec(str))) {
+    this.r = parseInt(bits[1], 10);
+                this.g = parseInt(bits[2], 10);
+                this.b = parseInt(bits[3], 10);
+                this.a = parseFloat(bits[4], 10);
+  } else {
+    throw new ColorError("Unknow color format '"+str+"'");
+  }
+};
+
+Color.prototype.torgba = function ()
+{
+  return 'rgba('+this.r+','+this.g+','+this.b+','+this.a+')';
+};
+