Written by I just finished writing my first AS3 application. Part of its functionality allowed a color code to be passed in as a variable. The problem I ran into was that the color code was being passed by web developers. Instead of “0xFFCC00″ they would pass “#FFCC00″. Understandable mistake, but garbage to Flash, so the custom color would never be applied.
Rather than require the RGB code to be passed in, I wrote a short function to check for the HTML Hex format and convert it if necessary. It uses a regular expression to delete any occurrence of ‘#’ and it adds “0x” to the beginning of the color code if it doesn’t already exist.
To see how it works, paste the following code into a blank Flash document and preview it:
//Create a text field and populate it
var myTextField:TextField = new TextField();
myTextField.text = "Hello World";
addChild(myTextField);
//Convert incorrectly formatted color string
var passedColor:String = "#FFCC00";
var newColor:String = fixColorCode(passedColor);
trace(newColor); //0xFFCC00 will be returned
//change color
var newFormat:TextFormat = new TextFormat();
newFormat.color = newColor;
myTextField.setTextFormat(newFormat);
function fixColorCode($color:String) :String
{
var submittedColor:String = $color;
var validColor:String;
var pattern:RegExp = /#/;
submittedColor = $color.replace(pattern,"");
pattern = /0x/;
if (submittedColor.substring(0,2) != "0x") {
validColor = "0x"+submittedColor;
} else {
validColor = submittedColor;
}
return validColor;
}
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