| 1 | /** |
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| 2 | * Simple class that handles stretching of displayelements. |
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| 3 | **/ |
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| 4 | package com.jeroenwijering.utils { |
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| 5 | |
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| 6 | |
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| 7 | import flash.display.DisplayObject; |
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| 8 | |
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| 9 | |
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| 10 | public class Stretcher { |
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| 11 | |
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| 12 | |
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| 13 | /** Stretches the clip nonuniform to fit the container. **/ |
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| 14 | public static var EXACTFIT:String = "exactfit"; |
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| 15 | /** Stretches the clip uniform to fill the container, with parts being cut off. **/ |
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| 16 | public static var FILL:String = "fill"; |
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| 17 | /** No stretching, but the clip is placed in the center of the container. **/ |
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| 18 | public static var NONE:String = "none"; |
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| 19 | /** Stretches the clip uniform to fit the container, with bars added. **/ |
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| 20 | public static var UNIFORM:String = "uniform"; |
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| 21 | |
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| 22 | |
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| 23 | /** |
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| 24 | * Resize a displayobject to the display, depending on the stretching. |
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| 25 | * |
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| 26 | * @param clp The display element to resize. |
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| 27 | * @param wid The target width. |
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| 28 | * @param hei The target height. |
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| 29 | * @param typ The stretching type. |
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| 30 | * **/ |
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| 31 | public static function stretch(clp:DisplayObject,wid:Number,hei:Number,typ:String='uniform'):void { |
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| 32 | var xsc:Number = wid/clp.width; |
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| 33 | var ysc:Number = hei/clp.height; |
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| 34 | switch(typ.toLowerCase()) { |
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| 35 | case 'exactfit': |
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| 36 | clp.width = wid; |
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| 37 | clp.height = hei; |
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| 38 | break; |
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| 39 | case 'fill': |
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| 40 | if(xsc > ysc) { |
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| 41 | clp.width *= xsc; |
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| 42 | clp.height *= xsc; |
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| 43 | } else { |
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| 44 | clp.width *= ysc; |
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| 45 | clp.height *= ysc; |
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| 46 | } |
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| 47 | break; |
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| 48 | case 'none': |
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| 49 | clp.scaleX = 1; |
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| 50 | clp.scaleY = 1; |
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| 51 | break; |
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| 52 | case 'uniform': |
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| 53 | default: |
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| 54 | if(xsc > ysc) { |
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| 55 | clp.width *= ysc; |
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| 56 | clp.height *= ysc; |
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| 57 | } else { |
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| 58 | clp.width *= xsc; |
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| 59 | clp.height *= xsc; |
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| 60 | } |
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| 61 | break; |
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| 62 | } |
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| 63 | clp.x = Math.round(wid/2 - clp.width/2); |
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| 64 | clp.y = Math.round(hei/2 - clp.height/2); |
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| 65 | clp.width = Math.ceil(clp.width); |
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| 66 | clp.height = Math.ceil(clp.height); |
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| 67 | }; |
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| 68 | |
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| 69 | } |
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| 70 | |
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| 71 | |
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| 72 | } |
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