Guide de reference du langage ActionScript 2.0 - PowWeb

Exemple
L'exemple suivant modifie la propriété hors limites alpha pour la mettre à 0x00FF00 sur le
clip existant filteredMc quand un utilisateur clique sur celui-ci.
import flash.filters.DisplacementMapFilter;
import flash.display.BitmapData;
import flash.geom.Point;
import flash.geom.Matrix;
import flash.geom.ColorTransform;
var filteredMc:MovieClip = createDisplacementMapRectangle();
filteredMc.onPress = function() {
var filter:DisplacementMapFilter = this.filters[0];
filter.scaleY = 25;
filter.mode = "color";
filter.alpha = .25;
this.filters = new Array(filter);
}
function createDisplacementMapRectangle():MovieClip {
var mapBitmap:BitmapData = createGradientBitmap(300, 80, 0xFF000000,
"radial");
var filter:DisplacementMapFilter = new DisplacementMapFilter(mapBitmap,
new Point(-30, -30), 1, 1, 10, 10, "wrap", 0x000000, 0x000000);
}
var txtBlock:MovieClip = createTextBlock();
txtBlock._x = 30;
txtBlock._y = 30;
txtBlock.filters = new Array(filter);
return txtBlock;
function createGradientBitmap(w:Number, h:Number, bgColor:Number,
type:String, hide:Boolean):BitmapData {
var mc:MovieClip = this.createEmptyMovieClip("mc", 1);
var matrix:Matrix = new Matrix();
matrix.createGradientBox(w, h, 0, 0, 0);
mc.beginGradientFill(type, [0xFF0000, 0x0000FF], [100, 100], [0x55,
0x99], matrix, "pad");
mc.lineTo(w, 0);
mc.lineTo(w, h);
mc.lineTo(0, h);
mc.lineTo(0, 0);
mc.endFill();
(hide == true) ? mc._alpha = 0 : mc._alpha = 100;
528 Chapitre 2: Classes ActionScript