最近在制作flash时需要制作一个可以随意设定宽度的按钮组件.为了保证按钮样式不变形,一般都会采用将按钮分成几个mc的方法来制作.但其实,如果对按钮的动态效果要求不多的话,完全可以使用Bitmap类来制作.下面是将按钮的一个状态分解开来.一般的思路是做为三个MC,然后在改变宽度是,动态改变中间mc的宽度就可以了。但是这样的话,对于元素的制作就比较麻烦.使用bitmap类可以直接将一张图片分为三个MC后生成.在批量使用时,效率提高了不少.
方法:
复制代码 代码如下:
/**
*date:2007.2.6
*author:Frank
*site:http://www.2solo.net/log
*/
importflash.display.*;
importflash.geom.Rectangle;
importflash.geom.Point;
install_img("mT_over_bmp",200,158,5,bmp_mc);
functioninstall_img(image_url,center_width,face_width,bar_left,tar_mc){
//image_url:目标图片路径
//center_width:整体宽度
//face_width:初始位图宽度
//bar_left:边侧mc宽度
//tar_mc:所要加载的容器地址
///定义原始
varlinkageId:String=image_url;
varmyBD:BitmapData=BitmapData.loadBitmap(linkageId);
if(tar_mc==undefined||tar_mc==""){
tar_mc=this;
}
//bmp_mc.attachBitmap(myBD,this.getNextHighestDepth());
face_width=face_width-2*bar_left;
///新建MC
tar_mc.center_mc.removeMovieClip();
tar_mc.left_mc.removeMovieClip();
tar_mc.right_mc.removeMovieClip();
varcenter_mc:MovieClip=tar_mc.createEmptyMovieClip("center_mc",tar_mc.getNextHighestDepth());
varleft_mc:MovieClip=tar_mc.createEmptyMovieClip("left_mc",tar_mc.getNextHighestDepth());
varright_mc:MovieClip=tar_mc.createEmptyMovieClip("right_mc",tar_mc.getNextHighestDepth());
center_mc._x=bar_left;
left_mc._x=0;
right_mc._x=center_width-bar_left;
///新建图片数据
varmyBD_C:BitmapData=newBitmapData(face_width,myBD.height,true,0x00FF0000);
varmyBD_L:BitmapData=newBitmapData(bar_left,myBD.height,true,0x00FF0000);
varmyBD_R:BitmapData=newBitmapData(bar_left,myBD.height,true,0x00FF0000);
///拷贝图片
myBD_C.copyPixels(myBD,newRectangle(bar_left,0,face_width,myBD.height),newPoint(0,0));
myBD_L.copyPixels(myBD,newRectangle(0,0,bar_left,myBD.height),newPoint(0,0));
myBD_R.copyPixels(myBD,newRectangle(myBD.width-bar_left,0,bar_left,myBD.height),newPoint(0,0));
//加载图片
center_mc.attachBitmap(myBD_C,this.getNextHighestDepth());
left_mc.attachBitmap(myBD_L,this.getNextHighestDepth());
right_mc.attachBitmap(myBD_R,this.getNextHighestDepth());
///调整距离
center_mc._width=center_width-2*bar_left;
}
stop();
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