root/trunk/as3/com/jeroenwijering/utils/Draw.as @ 2

/**
* Functions for drawing commonly used elements.
**/
package com.jeroenwijering.utils {


import flash.display.DisplayObject;
import flash.display.Sprite;
import flash.geom.Rectangle;
import flash.text.TextField;
import flash.text.TextFormat;


public class Draw {


        /** 
        * Completely clear the contents of a displayobject.
        *
        * @param tgt    Displayobject to clear.
        **/
        public static function clear(tgt:Sprite) {
                var len = tgt.numChildren;
                for(var i=0; i<len; i++) {
                        tgt.removeChildAt(0);
                }
                tgt.scaleX = tgt.scaleY = 1;
        };


        /** 
        * Clone a displayobject.
        *
        * @param tgt    Displayobject to clone.
        *
        * @return               The clone; not yet added to the displaystack.
        **/
        public static function clone(tgt:DisplayObject):DisplayObject {
                var cls:Class = Object(tgt).constructor;
                var dup:DisplayObject = new cls();
                dup.transform = tgt.transform;
                dup.filters = tgt.filters;
                dup.cacheAsBitmap = tgt.cacheAsBitmap;
                dup.opaqueBackground = tgt.opaqueBackground;
                if(tgt.scale9Grid) {
                        var rct:Rectangle = tgt.scale9Grid;
                        rct.x /= 20, rct.y /= 20, rct.width /= 20, rct.height /= 20;
                        dup.scale9Grid = rct;
                }
            return dup;
        };


        /** 
        * Draw a rectangle on stage.
        *
        * @param tgt    Displayobject to add the rectangle to.
        * @param col    Color of the rectangle.
        * @param wid    Width of the rectangle.
        * @param hei    Height of the rectangle.
        * @param xps    X offset of the rectangle, defaults to 0.
        * @param yps    Y offset of the rectangle, defaults to 0.
        **/
        public static function rect(tgt:Sprite,col:String,wid:Number,hei:Number,xps:Number=0,yps:Number=0,alp:Number=1):Sprite {
                var rct = new Sprite();
                rct.x = xps;
                rct.y = yps;
                rct.graphics.beginFill(col,alp);
                rct.graphics.drawRect(0,0,wid,hei);
                tgt.addChild(rct);
                return rct;
        };


        /** 
        * Draw a textfield on stage.
        *
        * @param tgt    Displayobject to add the textfield to.
        * @param col    Color of the text.
        * @param xps    X offset of the rectangle.
        * @param yps    Y offset of the rectangle.
        * @param txt    Text string to print.
        * @param ats    Textfield autosize direction, defaults to left.
        * @param siz    Font size, defaults to 12.
        *
        * @return               A reference to the textfield.
        **/
        public static function text(tgt:Sprite,col:String,xps:Number,yps:Number,txt:String,ats:String='left',siz:Number=12,fnt:String='Arial'):TextField {
                var tfd = new TextField();
                var fmt = new TextFormat();
                tfd.autoSize = ats;
                tfd.selectable = false;
                fmt.font = fnt;
                fmt.color = col;
                fmt.size = siz;
                fmt.underline = false;
                tfd.defaultTextFormat = fmt;
                tfd.x = xps;
                tfd.y = yps;
                tfd.text = txt;
                tgt.addChild(tfd);
                return tfd;
        };


}


}