1 files changed, 162 insertions, 0 deletions
diff --git a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/ColorUtil.js b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/ColorUtil.js
new file mode 100644
index 0000000000..3a8406f029
--- /dev/null
+++ b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/ColorUtil.js
@@ -0,0 +1,162 @@
+/* ************************************************************************
+
+   qooxdoo - the new era of web development
+
+   http://qooxdoo.org
+
+   Copyright:
+     2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org
+
+   License:
+     LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
+
+   Authors:
+     * Sebastian Werner (wpbasti)
+     * Andreas Ecker (ecker)
+
+************************************************************************ */
+
+/* ************************************************************************
+
+
+************************************************************************ */
+
+qx.OO.defineClass("qx.util.ColorUtil");
+
+qx.Class.rgb2hsb = function(vRed, vGreen, vBlue)
+{
+  var vHue, vSaturation, vBrightness;
+
+  vRed = parseFloat(vRed);
+  vGreen = parseFloat(vGreen);
+  vBlue = parseFloat(vBlue);
+
+  var cmax = (vRed > vGreen) ? vRed : vGreen;
+  if (vBlue > cmax) {
+    cmax = vBlue;
+  }
+
+  var cmin = (vRed < vGreen) ? vRed : vGreen;
+  if (vBlue < cmin) {
+    cmin = vBlue;
+  }
+
+  vBrightness = cmax / 255.0;
+
+  if (cmax != 0)
+  {
+    vSaturation = (cmax - cmin) / cmax;
+  }
+  else
+  {
+    vSaturation = 0;
+  }
+
+  if (vSaturation == 0)
+  {
+    vHue = 0;
+  }
+  else
+  {
+    var redc = (cmax - vRed) / (cmax - cmin);
+    var greenc = (cmax - vGreen) / (cmax - cmin);
+    var bluec = (cmax - vBlue) / (cmax - cmin);
+
+    if (vRed == cmax)
+    {
+      vHue = bluec - greenc;
+    }
+    else if (vGreen == cmax)
+    {
+      vHue = 2.0 + redc - bluec;
+    }
+    else
+    {
+      vHue = 4.0 + greenc - redc;
+    }
+
+    vHue = vHue / 6.0;
+    if (vHue < 0) vHue = vHue + 1.0;
+  }
+
+  return {
+    hue : Math.round(vHue * 360),
+    saturation : Math.round(vSaturation * 100),
+    brightness : Math.round(vBrightness * 100)
+  }
+}
+
+qx.Class.hsb2rgb = function(vHue, vSaturation, vBrightness)
+{
+  var i, f, p, q, t, vReturn;
+
+  vHue = parseFloat(vHue/360);
+  vSaturation = parseFloat(vSaturation/100);
+  vBrightness = parseFloat(vBrightness/100);
+
+  if(vHue >= 1.0) vHue %= 1.0;
+  if(vSaturation > 1.0) vSaturation = 1.0;
+  if(vBrightness > 1.0) vBrightness = 1.0;
+
+  var tov = Math.floor(255 * vBrightness);
+
+  var vReturn = {};
+
+  if(vSaturation == 0.0)
+  {
+    vReturn.red = vReturn.green = vReturn.blue = tov;
+  }
+  else
+  {
+    vHue *= 6.0;
+
+    i = Math.floor(vHue);
+
+    f = vHue - i;
+
+    p = Math.floor(tov * (1.0 - vSaturation));
+    q = Math.floor(tov * (1.0 - (vSaturation * f)));
+    t = Math.floor(tov * (1.0 - (vSaturation * (1.0  - f))));
+
+    switch(i)
+    {
+      case 0:
+        vReturn.red = tov;
+        vReturn.green = t;
+        vReturn.blue = p;
+        break;
+
+      case 1:
+        vReturn.red = q;
+        vReturn.green = tov;
+        vReturn.blue = p;
+        break;
+
+      case 2:
+        vReturn.red = p;
+        vReturn.green = tov;
+        vReturn.blue = t;
+        break;
+
+      case 3:
+        vReturn.red = p;
+        vReturn.green = q;
+        vReturn.blue = tov;
+        break;
+
+      case 4:
+        vReturn.red = t;
+        vReturn.green = p;
+        vReturn.blue = tov;
+        break;
+
+      case 5:
+        vReturn.red = tov;
+        vReturn.green = p;
+        vReturn.blue = q;
+        break;
+    }
+  }
+
+  return vReturn;
+}