forked from: Rough Printed
click stage to select your image.
RoughPrinted
@author Test Dept
/**
* Copyright rickyhk ( http://wonderfl.net/user/rickyhk )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/an4I
*/
// forked from Test_Dept's Rough Printed
//
// click stage to select your image.
//
package {
import flash.display.Sprite;
/**
* RoughPrinted
* @author Test Dept
*/
[SWF(backgroundColor="#ffffff", width="465", height="465")]
public class RoughPrinted extends Sprite {
public function RoughPrinted() {
addChild(new RoughPrintedImpl() );
}
}
}
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.DisplayObject;
import flash.display.Graphics;
import flash.display.Loader;
import flash.display.LoaderInfo;
import flash.display.Sprite;
import flash.geom.ColorTransform;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.net.FileFilter;
import flash.net.FileReference;
import flash.net.URLRequest;
import flash.system.LoaderContext;
class RoughPrintedImpl extends Sprite {
private var _fileRef : FileReference;
public function RoughPrintedImpl() {
addEventListener(Event.ADDED_TO_STAGE, addedToStageHandler);
}
private function addedToStageHandler(event : Event) : void {
var url : String = "http://assets.wonderfl.net/images/related_images/8/83/8305/8305445b4e41f37856f0c9d0751937e30e21c496m";
var loader : Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loader_completeHandler);
loader.load(new URLRequest(url), new LoaderContext(true) );
stage.addEventListener(MouseEvent.MOUSE_DOWN, stage_mouseDownHandler);
}
private function loader_completeHandler(event : Event) : void {
var loaderInfo : LoaderInfo = event.target as LoaderInfo;
var bmp : Bitmap = loaderInfo.content as Bitmap;
var dstBmp : BitmapData = Util.createPrintedIndirect(
bmp, stage.stageWidth, stage.stageHeight, 8, 0xf0f0f0, 0.8);
while (numChildren > 0) {
removeChildAt(numChildren - 1);
}
addChild(new Bitmap(dstBmp) );
}
private function stage_mouseDownHandler(event : MouseEvent) : void {
_fileRef = new FileReference();
_fileRef.browse([
new FileFilter("Image Files", "*.jpg;*.png"),
new FileFilter("All Files", "*.*"),
]);
_fileRef.addEventListener(Event.SELECT, _fileRef_selectHandler);
}
private function _fileRef_selectHandler(event : Event) : void {
_fileRef.load();
_fileRef.addEventListener(Event.COMPLETE, _fileRef_load_completeHandler);
}
private function _fileRef_load_completeHandler(event : Event) : void {
var loader : Loader = new Loader();
loader.loadBytes(_fileRef.data);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loader_completeHandler);
}
}
class Util {
public static function createPrintedIndirect(
src : DisplayObject,
width : int,
height : int,
dotSize : Number,
paperColor : uint = 0xffffff,
vivid : Number = 1
) : BitmapData {
var srcBmp : BitmapData = new BitmapData(width, height);
var scale : Number = (src.width / src.height > width / height)?
height / src.height : width / src.width;
var mat : Matrix = new Matrix(
scale, 0, 0, scale,
(width - scale * src.width) / 2,
(height - scale * src.height) / 2);
srcBmp.draw(src, mat);
return createPrinted(srcBmp, dotSize, paperColor, vivid);
}
public static function createPrinted(
srcBmp : BitmapData, dotSize : Number,
paperColor : uint = 0xffffff,
vivid : Number = 1
) : BitmapData {
var dstBmp : BitmapData = new BitmapData(
srcBmp.width, srcBmp.height, false, paperColor);
var ct : ColorTransform = new ColorTransform(vivid, vivid, vivid);
// Y
dstBmp.draw(createHalftone(srcBmp, dotSize, 0xff, 0),
null, ct, BlendMode.SUBTRACT);
// M
dstBmp.draw(createHalftone(srcBmp, dotSize, 0xff << 8, 15),
null, ct, BlendMode.SUBTRACT);
// C
dstBmp.draw(createHalftone(srcBmp, dotSize, 0xff << 16, 30),
null, ct, BlendMode.SUBTRACT);
return dstBmp;
}
public static function createHalftone(
srcBmp : BitmapData, dotSize : Number,
mask : int, angle : Number
) : BitmapData {
var color : uint = 0xff000000 | mask;
//--------------------
// base
var dstBmp : BitmapData = new BitmapData(
srcBmp.width, srcBmp.height, false, 0);
dstBmp.threshold(srcBmp,
new Rectangle(0, 0, srcBmp.width, srcBmp.height),
new Point(0, 0), "<=", mask >>> 1, color, mask);
//--------------------
// create pattern
var pattern : Sprite = new Sprite();
var g : Graphics = pattern.graphics;
g.clear();
createPattern(dstBmp.width, dstBmp.height, dotSize, angle * Math.PI / 180,
function(x : Number, y : Number) : void {
var s : Number = (mask & srcBmp.getPixel(x, y) ) / mask;
var rev : Boolean = false;
if (s > 0.5) {
s = 1.0 - s;
rev = true;
}
var r : Number = Math.sqrt(s * dotSize * dotSize / Math.PI);
g.beginFill(rev? color : 0);
g.drawCircle(x, y, r);
g.endFill();
}
);
dstBmp.draw(pattern);
return dstBmp;
}
private static function createPattern(
width : Number,
height : Number,
dotPitch : Number,
angle : Number,
handler : Function
) : void {
if (angle < 0 || angle >= Math.PI / 2) {
throw new Error("bad angle:" + angle);
}
var mat : Matrix = new Matrix();
mat.rotate(angle);
var numDots : int = Math.max(width / dotPitch, height / dotPitch);
var dx : Point = mat.transformPoint(new Point(dotPitch, 0) );
for (var iy : int = -numDots; iy < numDots; iy++) {
var p : Point = mat.transformPoint(new Point(0, iy * dotPitch) );
while (p.x < 0) {
p = p.add(dx);
}
while (p.x < width && p.y < height) {
handler(p.x, p.y);
p = p.add(dx);
}
}
}
}