as3 抠图

最新推荐文章于 2018-05-04 20:39:45 发布

原创最新推荐文章于 2018-05-04 20:39:45 发布 · 932 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#image #null #encoding #扩展 #up #c

flex&amp 同时被 3 个专栏收录

47 篇文章

订阅专栏

46 篇文章

订阅专栏

amp

3 篇文章

订阅专栏

view plain

import flash.display.*;
import flash.events.*;
import flash.filters.*;
import flash.geom.*;
import mx.controls.Image;
import mx.core.UIComponent;
/** * @author CYPL * 设置图片元件实例名为Image */
public class CutImageTest extends UIComponent {
private var _imageBitmapData : BitmapData;
private var _imageHotAreaData:BitmapData;
private var _imageBitmap : Bitmap;
private var _mouseRectContainer:Sprite;
private var _mouseRectStartX:Number;
private var _mouseRectStartY:Number;
private var _imageClipDraging:Boolean;
private var _currentDragClip:Sprite;
[Bindable]
public var clibImg:Bitmap;// 剪切图片
public function CutImageTest( image:Image ) {
_mouseRectContainer=new Sprite;
image.visible=false;
_imageBitmapData=new BitmapData(image.width,image.height,true,0),_imageBitmapData.draw(image); _imageBitmap=Bitmap(addChild(new Bitmap(_imageBitmapData)))
_imageBitmap.x=30
_imageBitmap.y=30
configMouseEvent();
//----------hitTestArea------------------------
var c:ColorTransform=new ColorTransform;
c.color=0xff0000;
_imageHotAreaData=_imageBitmapData.clone();
_imageHotAreaData.draw(_imageHotAreaData,null,c); }
private function configMouseEvent():void {
this.addEventListener(MouseEvent.MOUSE_DOWN,mouseDownHandler,false,0,true);
this.addEventListener(MouseEvent.MOUSE_UP,mouseUpHandler,false,0,true); }
/**************************drawRect handler*******************************/
private function mouseDownHandler(evt:MouseEvent):void {//mouse_down
if (_imageClipDraging) { return; }
addChild(_mouseRectContainer);
_mouseRectStartX=evt.stageX;
_mouseRectStartY=evt.stageY;
this.addEventListener(MouseEvent.MOUSE_MOVE,mouseMoveHandler); }
private function mouseUpHandler(evt:MouseEvent):void {//mouse_up
//_currentDragClip&&();
_imageClipDraging&&(_currentDragClip.stopDrag(),_imageClipDraging=false,_currentDragClip.alpha=1)
||(cutImage(checkIntersection()),_mouseRectContainer.graphics.clear(),this.removeEventListener(MouseEvent.MOUSE_MOVE,mouseMoveHandler)) }
private function mouseMoveHandler(evt:MouseEvent):void {//mouse_move
evt.updateAfterEvent();
var minX:Number=Math.min(evt.stageX,_mouseRectStartX)
var minY:Number=Math.min(evt.stageY,_mouseRectStartY)
var maxX:Number=Math.max(evt.stageX,_mouseRectStartX)
var maxY:Number=Math.max(evt.stageY,_mouseRectStartY)
with(_mouseRectContainer.graphics){
clear();
lineStyle(0);
beginFill(0xffff00,.5);
drawCircle( (maxX-minX)/2, (maxY-minY)/2, (maxX-minX)/2 );
//drawRect(0,0,maxX-minX,maxY-minY);
}
_mouseRectContainer.x=minX;
_mouseRectContainer.y=minY;
}
/************************************************************************/
/**************************drag handler*******************************/
private function clipMouseDownHandler(evt:MouseEvent):void {//mouse_down
var target:Sprite=evt.target as Sprite;
_currentDragClip=target;
_currentDragClip.alpha=.5;
_imageClipDraging=true;
addChild(target);
_currentDragClip.startDrag(false);
}
/************************************************************************/
private function checkIntersection():Rectangle {
var intersectRect:Rectangle=_imageBitmapData.rect.intersection(new Rectangle(_mouseRectContainer.x-_imageBitmap.x,_mouseRectContainer.y-_imageBitmap.y,_mouseRectContainer.width,_mouseRectContainer.height)); //trace("与源图BitmapData相交范围:"+intersectRect);
if (intersectRect.width==0 || intersectRect.height==0) { return null; }
var bitmapData:BitmapData=new BitmapData(intersectRect.width,intersectRect.height,true,0); bitmapData.draw(_imageHotAreaData,new Matrix(1,0,0,1,-intersectRect.x,-intersectRect.y),null,null,new Rectangle(0,0,intersectRect.width,intersectRect.height));
var intersectHotAreaRect:Rectangle=bitmapData.getColorBoundsRect(0xFFFF0000, 0xFFFF0000,true);
trace("最终切图块的范围:"+intersectHotAreaRect);
if (intersectHotAreaRect.width==0 || intersectHotAreaRect.height==0) { return null; }
//扩展范围避免误差
intersectHotAreaRect.x-=1
intersectHotAreaRect.y-=1
intersectHotAreaRect.width+=2
intersectHotAreaRect.height+=2
return intersectHotAreaRect; }
private function cutImage(rect:Rectangle):void {//关键的切图部分
if (!rect) { return; }
var clipBitmapData:BitmapData=new BitmapData(rect.width,rect.height,true,0);
varcliptX:Number=(_mouseRectContainer.x=_mouseRectContainer.x<_imageBitmap.x?0:_mouseRectContainer.x-_imageBitmap.x)+rect.x; varcliptY:Number=(_mouseRectContainer.y=_mouseRectContainer.y<_imageBitmap.y?0:_mouseRectContainer.y-_imageBitmap.y)+rect.y; clipBitmapData.draw(_imageBitmapData,new Matrix(1,0,0,1,-cliptX,-cliptY),null,null,new Rectangle(0,0,rect.width,rect.height));//intersectHotAreaRect)
var clipBitmap:Bitmap=new Bitmap(clipBitmapData);
clibImg = clipBitmap;// 剪切图片
}
}
}
/*****************************************************MXML**********************************************/
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()"> <mx:Script> <![CDATA[
[Bindable]
private var cutImg:CutImageTest;
private function init():void {
cutImg = new CutImageTest( image );
this.addChild( cutImg );
}
]]>
</mx:Script>
<mx:Image left="60" top="50" right="520" bottom="220" id="image" source="../img/11.jpg"/>
<mx:Image id="clibImg" source="{cutImg.clibImg}" width="200" height="200" right="50" bottom="100"/>
</mx:Application>
/**************************************************************************************************************/
封装类 CutImageTest （抠图功能实现）
package {
import flash.display.*;
import flash.events.*;
import flash.filters.*;
import flash.geom.*;
import mx.controls.Image;
import mx.core.UIComponent;
/** * @author CYPL * 设置图片元件实例名为Image */
public class CutImageTest extends UIComponent {
private var _imageBitmapData : BitmapData;
private var _imageHotAreaData:BitmapData;
private var _imageBitmap : Bitmap;
private var _mouseRectContainer:Sprite;
private var _mouseRectStartX:Number;
private var _mouseRectStartY:Number;
private var _imageClipDraging:Boolean;
private var _currentDragClip:Sprite;
[Bindable]
public var clibImg:Bitmap;// 剪切图片
public function CutImageTest( image:Image ) {
_mouseRectContainer=new Sprite;
image.visible=false;
_imageBitmapData=new BitmapData(image.width,image.height,true,0),_imageBitmapData.draw(image); _imageBitmap=Bitmap(addChild(new Bitmap(_imageBitmapData)))
_imageBitmap.x=30 ;
_imageBitmap.y=30 ;
configMouseEvent();
//----------hitTestArea------------------------
var c:ColorTransform=new ColorTransform;
c.color=0xff0000;
_imageHotAreaData=_imageBitmapData.clone();
_imageHotAreaData.draw(_imageHotAreaData,null,c);
}
private function configMouseEvent():void {
this.addEventListener(MouseEvent.MOUSE_DOWN,mouseDownHandler,false,0,true);
this.addEventListener(MouseEvent.MOUSE_UP,mouseUpHandler,false,0,true);
}
/**************************drawRect handler*******************************/
private function mouseDownHandler(evt:MouseEvent):void {//mouse_down
if (_imageClipDraging) { return; }
addChild(_mouseRectContainer);
_mouseRectStartX=evt.stageX;
_mouseRectStartY=evt.stageY;
this.addEventListener(MouseEvent.MOUSE_MOVE,mouseMoveHandler);
} private function mouseUpHandler(evt:MouseEvent):void {//mouse_up
//_currentDragClip&&();
_imageClipDraging&&(_currentDragClip.stopDrag(),_imageClipDraging=false,_currentDragClip.alpha=1)
||(cutImage(checkIntersection()),_mouseRectContainer.graphics.clear(),this.removeEventListener(MouseEvent.MOUSE_MOVE,mouseMoveHandler)) }
private function mouseMoveHandler(evt:MouseEvent):void {//mouse_move
evt.updateAfterEvent();
var minX:Number=Math.min(evt.stageX,_mouseRectStartX)
var minY:Number=Math.min(evt.stageY,_mouseRectStartY)
var maxX:Number=Math.max(evt.stageX,_mouseRectStartX)
var maxY:Number=Math.max(evt.stageY,_mouseRectStartY)
with(_mouseRectContainer.graphics){
clear();
lineStyle(0);
beginFill(0xffff00,.5);
drawRect(0,0,maxX-minX,maxY-minY);}
_mouseRectContainer.x=minX;
_mouseRectContainer.y=minY;
}
/************************************************************************/
/**************************drag handler*******************************/
private function clipMouseDownHandler(evt:MouseEvent):void {//mouse_down
var target:Sprite=evt.target as Sprite;
_currentDragClip=target;
_currentDragClip.alpha=.5;
_imageClipDraging=true;
addChild(target);
_currentDragClip.startDrag(false);
}
/************************************************************************/
private function checkIntersection():Rectangle {
var intersectRect:Rectangle=_imageBitmapData.rect.intersection(new Rectangle(_mouseRectContainer.x-_imageBitmap.x,_mouseRectContainer.y-_imageBitmap.y,_mouseRectContainer.width,_mouseRectContainer.height)); trace("与源图BitmapData相交范围:"+intersectRect);
if (intersectRect.width==0 || intersectRect.height==0) { return null; }
var bitmapData:BitmapData=new BitmapData(intersectRect.width,intersectRect.height,true,0); bitmapData.draw(_imageHotAreaData,new Matrix(1,0,0,1,-intersectRect.x,-intersectRect.y),null,null,new Rectangle(0,0,intersectRect.width,intersectRect.height));
var intersectHotAreaRect:Rectangle=bitmapData.getColorBoundsRect(0xFFFF0000, 0xFFFF0000,true);
trace("最终切图块的范围:"+intersectHotAreaRect);
if (intersectHotAreaRect.width==0 || intersectHotAreaRect.height==0) { return null; }
//扩展范围避免误差
intersectHotAreaRect.x-=1
intersectHotAreaRect.y-=1
intersectHotAreaRect.width+=2
intersectHotAreaRect.height+=2
return intersectHotAreaRect;
}
private function cutImage(rect:Rectangle):void {//关键的切图部分
if (!rect) { return; }
var clipBitmapData:BitmapData=new BitmapData(rect.width,rect.height,true,0);
varcliptX:Number=(_mouseRectContainer.x=_mouseRectContainer.x<_imageBitmap.x?0:_mouseRectContainer.x-_imageBitmap.x)+rect.x; varcliptY:Number=(_mouseRectContainer.y=_mouseRectContainer.y<_imageBitmap.y?0:_mouseRectContainer.y-_imageBitmap.y)+rect.y; clipBitmapData.draw(_imageBitmapData,new Matrix(1,0,0,1,-cliptX,-cliptY),null,null,new Rectangle(0,0,rect.width,rect.height));//intersectHotAreaRect)
var clipBitmap:Bitmap=new Bitmap(clipBitmapData);
clipBitmap.filters=[new GlowFilter(0,1,2,2,10,1)];
var sprite:Sprite=new Sprite
with(sprite.graphics){
lineStyle(0);
lineTo(rect.width,0);
lineTo(rect.width,rect.height);
lineTo(0,rect.height);
lineTo(0,0);}
sprite.x=_mouseRectContainer.x+rect.x+_imageBitmap.x
sprite.y=_mouseRectContainer.y+rect.y+_imageBitmap.y
sprite.addEventListener(MouseEvent.MOUSE_DOWN,clipMouseDownHandler);
Sprite(addChild(sprite)).addChild(clipBitmap)
var fillRect:Rectangle=new Rectangle(sprite.x-_imageBitmap.x,sprite.y-_imageBitmap.y,rect.width,rect.height); _imageBitmapData.fillRect(fillRect,0);
_imageHotAreaData.fillRect(fillRect,0);
clibImg = clipBitmap;// 剪切图片
}
}
}
/--------------------------------------------------------------结束------- ---------------------------------------------------------------------/