flash mx 2004 自定义滚动条代码

最新推荐文章于 2011-09-21 17:57:47 发布

原创最新推荐文章于 2011-09-21 17:57:47 发布 · 1.1k 阅读

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文章标签：

#flash #function #scroll #border #up #delete

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本文介绍了一个使用ActionScript实现的Flash滚动条组件。该组件通过定义滚动区域的长度和位置来控制文本滚动，并且能够根据文本的最大滚动距离调整滚动条的位置。文章详细描述了滚动条的初始化设置、绘制边界、开始及停止滚动等功能。

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//定义scroll的总长
var totalDist = Math.floor((myText._height-myText._y)-down_btn._height-scrollBar_mc._height);
var target = "text.txt";
var target1="aa.htm";

//设置按钮和滑块的位置
up_btn._x = myText._x+myText._width;
up_btn._y = myText._y+up_btn._height;
down_btn._x = myText._x+myText._width;
down_btn._y = myText._y+myText._height-down_btn._height;
scrollBar_mc._x = myText._x+myText._width;
scrollBar_mc._y = myText._y+up_btn._height;

//绘制边
drawBorder = function (depth, pos_x, pos_y, par1, par2) {
border = createEmptyMovieClip("border", depth);
with (border) {
  lineStyle(1, 0xcccccc, 100);
  moveTo(pos_x, pos_y);
  lineTo(pos_x+par1, pos_y);
  lineTo(pos_x+par1, pos_y+par2);

  //lineTo(pos_x, pos_y+par2);
  //lineTo(pos_x, pos_y);
  trace(pos_x);
  trace(pos_y);
}
};
//创建scroll函数
startScroll = function (texto, direction) {
this.createEmptyMovieClip("loop", this.getNextHighestDepth());
loop.onEnterFrame = function() {
  myText.scroll += direction;
  var percent = Math.floor((myText.scroll/myText.maxscroll)*100);
  var position = Math.floor((totalDist/100)*percent);
  scrollBar_mc.txte.percenty=percent+"%";

  if (myText.scroll == 1) {
   scrollBar_mc._y = myText._y+up_btn._height;
   scrollBar_mc.txte._visible=false;

  } else {
   scrollBar_mc.txte._visible=true;
   scrollBar_mc._y = position;
  }
};
};
//停止SCROLL
stopScroll = function () {
delete loop.onEnterFrame;
};
down_btn.onPress = function() {
startScroll(texto, 1);
};
up_btn.onPress = function() {
startScroll(texto, -1);
};
down_btn.onRelease = down_btn.onReleaseOutside=function () {
stopScroll();
};
up_btn.onRelease = up_btn.onReleaseOutside=function () {
stopScroll();
};
var myLoadText = new LoadVars();
myLoadText.onLoad = function(success) {
if (success) {
  myText.html = true;
  myText.htmlText=myLoadText.texto;
  drawBorder(100, myText._x, myText._y, myText._width, myText._height);
  scrollBar_mc.txte._visible=false;
  if (myText.maxscroll == 1) {
   up_btn._visible = false;
   down_btn._visible = false;
   scrollBar_mc._visible = false;
   } else {
   drawBorder(200, myText._x+myText._width, myText._y, 15, myText._height);
  }
} else {
  myText.html = "不能载入文本";
}
};
myLoadText.load(target);