Hello!
Having problem databinding in my Flex/AS3 application. I´ve an image component and a button. When pressing the button it will add a ColorMatrixFilter to the image.
[AS]
<mx:Script>
<![CDATA[
private function applyNegative():void
{
var matrix:Array = new Array();
matrix.concat( [-1, 0, 0, 0, 255] ); // Red
matrix.concat( [0, -1, 0, 0, 255] ); // Green
matrix.concat( [0, 0, -1, 0, 255] ); // Blue
matrix.concat( [0, 0, 0, 1, 0] ); // Alpha
applyFilter( matrix );
}
private function applyFilter(_matrix:Array):void
{
var cmf:ColorMatrixFilter = new ColorMatrixFilter( _matrix );
image.filters = [cmf];
}
]]>
</mx:Script>
<mx:Image x=“48” y=“45” autoLoad=“true” id=“image” scaleContent=“true” />
<mx:Button x=“10” y=“40” label=“Negative” id=“btnNegative” click=“applyNegative();” width=“86”/>
I´ve tried data binding the button, image and parameters without success. This filter inverts the color and if I put the matrix filter array in a variable outside the applyNegative-method it will work. I´ve other image manipulation methods like contrast and it will be adjusted using a slider the same way as this. But it doesn´t work either. How can this be solved?
[Edit]
Ok, the problem was how the Matrix array was built. Instead of concatinating the values just built it using:
var matrix:Array = [ a, 0, 0, 0, b, // Red
0, a, 0, 0, b, // Gren
0, 0, a, 0, b, // Blue
0, 0, 0, 1, 0 ]; // Alpha
