User:Koevanuda

<style type="text/css">

   .dragPanel { position: relative; background-color: #eeeeee; top: 0px; left: 20px; width: 320px; height: 180px; }
   .dragPanel h4 { background-color: #bbbbbb; height: 10px; margin: 0px; cursor: move; }
   input { font-size: 85%} .thumb { cursor:default; width:18px; height:18px; z-index: 9; position: absolute; left: 0px; }
   .bg { position:absolute; left:10px; height:18px; width:146px; border: 0px solid #aaaaaa; } 
   .bg span, .bg p { cursor:default; position: relative; font-size: 2px; overflow: hidden; color: #aaaaaa; top: 4px; height: 10px; width: 4px; display: block; float:left; }
   .bg span { border-top:1px solid #cccccc; border-bottom:1px solid #cccccc; }
   .bg .lb { border-left:1px solid #cccccc; }
   .bg .rb { border-right:1px solid #cccccc; }
   #valdiv { position:absolute; top: 100px; left:10px; } 
   #rBG {-moz-outline: none; outline:0px none;top:30px}
   #gBG {-moz-outline: none; outline:0px none;top:50px}
   #bBG {-moz-outline: none; outline:0px none;top:70px}
   #swatch { position:absolute; left:160px; top:34px; height:50px; width:50px; border:1px solid #aaaaaa; }

</style>

<img src="assets/thumb-rgb.png" />

<img src="assets/thumb-rgb.png" />

<img src="assets/thumb-rgb.png" />

   <form name="rgbform">

RGB	<input autocomplete="off" tabindex="3" name="rval" id="rval" type="text" value="0" size="4" maxlength="4" /> <input autocomplete="off" tabindex="4" name="gval" id="gval" type="text" value="0" size="4" maxlength="4" /> <input autocomplete="off" tabindex="5" name="bval" id="bval" type="text" value="0" size="4" maxlength="4" />	<input tabindex="6" id="rgbSubmit" type="button" value="Update" />
Hex: #	<input autocomplete="off" tabindex="7" name="hexval" id="hexval" type="text" value="" size="6" maxlength="6" />	<input tabindex="8" id="hexSubmit" type="button" value="Update" />
<input tabindex="9" id="resetButton" type="button" value="Reset" />

   </form>

<script type="text/javascript" src="assets/color.js"></script>

<script type="text/javascript">

YAHOO.example.RGBSlider = function() {

   var Event = YAHOO.util.Event,
       Dom = YAHOO.util.Dom,
       Color = YAHOO.util.Color,
       Slider = YAHOO.widget.Slider,
       r, g, b, dd;

   function updateSliderColors() {

       var curr, curg, curb;

       curr = Math.min(r.getValue() * 2, 255);
       curg = Math.min(g.getValue() * 2, 255);
       curb = Math.min(b.getValue() * 2, 255);

       YAHOO.log("updateSliderColor " + curr + ", " + curg + ", " + curb);

       for (var i=0; i<34; i++) {
           Dom.setStyle("rBG" + i, "background-color", 
               "rgb(" + (i*8) + "," + curg + "," + curb + ")");

           Dom.setStyle("gBG" + i, "background-color", 
               "rgb(" + curr + "," + (i*8) + "," + curb + ")");

           Dom.setStyle("bBG" + i, "background-color", 
               "rgb(" + curr + "," + curg + "," + (i*8) + ")");
       }

       Dom.setStyle("swatch", "background-color", 
           "rgb(" + curr + "," + curg + "," + curb + ")");

       Dom.get("hexval").value = Color.rgb2hex(curr, curg, curb);
   }

   function isValidRGB(a) { 
       if ((!a[0] && a[0] !=0) || isNaN(a[0]) || a[0] < 0 || a[0] > 255) return false;
       if ((!a[1] && a[1] !=0) || isNaN(a[1]) || a[1] < 0 || a[1] > 255) return false;
       if ((!a[2] && a[2] !=0) || isNaN(a[2]) || a[2] < 0 || a[2] > 255) return false;

       return true;
   }

   function listenerUpdate(whichSlider, newVal) {
       newVal = Math.min(255, newVal);
       Dom.get(whichSlider + "val").value = newVal;
       updateSliderColors();
   }

   return {

       userReset: function() {
           var v;
           var f = document.forms['rgbform'];

           r.setValue(0);
           g.setValue(0);
           b.setValue(0);
       },

       rgbInit: function() {

           r = Slider.getHorizSlider("rBG", "rthumb", 0, 128);
           r.subscribe("change", function(newVal) { listenerUpdate("r", newVal*2); });

           g = Slider.getHorizSlider("gBG", "gthumb", 0, 128);
           g.subscribe("change", function(newVal) { listenerUpdate("g", newVal*2); });

           b = Slider.getHorizSlider("bBG", "bthumb", 0, 128);
           b.subscribe("change", function(newVal) { listenerUpdate("b", newVal*2); });

           this.initColor();

           dd = new YAHOO.util.DD("ddRGB");
           dd.setHandleElId("pickerHandle");
       },

       initColor: function() {
           var ch = " ";

           d = document.createElement("P");
           d.className = "rb";
           r.getEl().appendChild(d);
           d = document.createElement("P");
           d.className = "rb";
           g.getEl().appendChild(d);
           d = document.createElement("P");
           d.className = "rb";
           b.getEl().appendChild(d);

           for (var i=0; i<34; i++) {
               d = document.createElement("SPAN");
               d.id = "rBG" + i
               // d.innerHTML = ch;
               r.getEl().appendChild(d);

               d = document.createElement("SPAN");
               d.id = "gBG" + i
               // d.innerHTML = ch;
               g.getEl().appendChild(d);

               d = document.createElement("SPAN");
               d.id = "bBG" + i
               // d.innerHTML = ch;
               b.getEl().appendChild(d);
           }

           d = document.createElement("P");
           d.className = "lb";
           r.getEl().appendChild(d);
           d = document.createElement("P");
           d.className = "lb";
           g.getEl().appendChild(d);
           d = document.createElement("P");
           d.className = "lb";
           b.getEl().appendChild(d);

           this.userUpdate();
       },

       hexUpdate: function(e) {
           return this.userUpdate(e, true);
       },

       userUpdate: function(e, isHex) {
           var v;
           var f = document.forms['rgbform'];

           if (isHex) {
               var hexval = f["hexval"].value;
               // shorthand #369
               if (hexval.length == 3) {
                   var newval = "";
                   for (var i=0;i<3;i++) {
                       var a = hexval.substr(i, 1);
                       newval += a + a;
                   }

                   hexval = newval;
               }

               YAHOO.log("hexval:" + hexval);

               if (hexval.length != 6) {
                   alert("illegal hex code: " + hexval);
               } else {
                   var rgb = Color.hex2rgb(hexval);
                   // alert(rgb.toString());
                   if (isValidRGB(rgb)) {
                       f['rval'].value = rgb[0];
                       f['gval'].value = rgb[1];
                       f['bval'].value = rgb[2];
                   }
               }
           }

           // red
           v = parseFloat(f['rval'].value);
           v = ( isNaN(v) ) ? 0 : Math.round(v);
           YAHOO.log("setValue, r: " + v);
           r.setValue(Math.round(v) / 2);

           v = parseFloat(f['gval'].value);
           v = ( isNaN(v) ) ? 0 : Math.round(v);
           YAHOO.log("setValue, g: " + g);
           g.setValue(Math.round(v) / 2);

           v = parseFloat(f['bval'].value);
           v = ( isNaN(v) ) ? 0 : Math.round(v);
           YAHOO.log("setValue, b: " + b);
           b.setValue(Math.round(v) / 2);

           updateSliderColors();

           if (e) {
               Event.stopEvent(e);
           }
       },

       init: function() {
           this.rgbInit();
           Event.on("rgbForm", "submit", this.userUpdate);
           Event.on("rgbSubmit", "click", this.userUpdate);
           Event.on("hexSubmit", "click", this.hexUpdate, this, true);
           Event.on("resetButton", "click", this.userReset);
       }
   };

}();

YAHOO.util.Event.onDOMReady(YAHOO.example.RGBSlider.init,

                           YAHOO.example.RGBSlider, true);

</script>