本文主要是介绍Flex中的TextInput （4）：控件化，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
让前面的代码形成TextInput控件。
TextInputComponent.as
package {
import Component.MyTextInput;
import flash.display.Sprite;
public class TextInputComponent extends Sprite
{
public function TextInputComponent()
{
var txt1:MyTextInput = new MyTextInput(100,100,200,20);
addChild(txt1);
var txt2:MyTextInput = new MyTextInput(100,130,300,15);
addChild(txt2);
}
}
}
MyTextInput.as
package Component
{
import flash.display.Sprite;
import flash.text.TextField;
import flash.text.TextFieldType;
import skins.Border;
public class MyTextInput extends Sprite
{
private var _w:int;
private var _h:int;
private var _x:int;
private var _y:int;
public function MyTextInput(x:int,y:int,width:int,height:int)
{
_x = x;
_y = y;
_w = width;
_h = height;
CreateChild();
}
public function CreateChild():void{
//添加3D边框
var border:Border = new Border(_x,_y,_w,_h);
addChild(border);
//添加TextField
var txt:TextField = new TextField();
txt.type = TextFieldType.INPUT;
txt.x = _x + 1;
txt.y = _y + 1;
txt.width = _w-2;
txt.height = _h-2;
txt.background = true;
txt.backgroundColor = 0xffffff;
addChild(txt);
}
}
}
Border.as
注意：由于边框是背景效果，所以基类改为Shape，保证永远位于文本框的后面。
package skins
{
import flash.display.Graphics;
import flash.display.Shape;
import mx.utils.ColorUtil;
public class Border extends Shape
{
//定义高度和宽度
private var _w:int;
private var _h:int;
private var _x:int;
private var _y:int;
public function Border(x:int,y:int,width:int,height:int)
{
_x = x;
_y = y;
_w = width;
_h = height;
drawBorder();
}
public function drawBorder():void
{
//定义边框颜色
var borderColor:uint;
var borderColorDrk1:uint
var borderColorDrk2:uint
var borderColorLt1:uint
var borderInnerColor:uint;
//设定边框颜色
borderColor = 0xb7babc;
borderColorDrk1 =
ColorUtil.adjustBrightness2(borderColor, -40);
borderColorDrk2 =
ColorUtil.adjustBrightness2(borderColor, +25);
borderColorLt1 =
ColorUtil.adjustBrightness2(borderColor, +40);
borderInnerColor = 0xffffff;
//画出3D边框效果
draw3dBorder(borderColorDrk2, borderColorDrk1, borderColorLt1,
Number(borderInnerColor),
Number(borderInnerColor),
Number(borderInnerColor));
}
public function draw3dBorder(c1:Number, c2:Number, c3:Number,
c4:Number, c5:Number, c6:Number):void
{
var g:Graphics = graphics;
g.clear();
// outside sides
g.beginFill(c1);
g.drawRect(_x, _y, _w, _h);
g.drawRect(_x+1, _y, _w - 2, _h);
g.endFill();
// outside top
g.beginFill(c2);
g.drawRect(_x+1, _y, _w - 2, 1);
g.endFill();
// outside bottom
g.beginFill(c3);
g.drawRect(_x+1, _y + _h - 1, _w - 2, 1);
g.endFill();
// inside top
g.beginFill(c4);
g.drawRect(_x+1, _y+1, _w - 2, 1);
g.endFill();
// inside bottom
g.beginFill(c5);
g.drawRect(_x+1, _y + _h - 2, _w - 2, 1);
g.endFill();
// inside sides
g.beginFill(c6);
g.drawRect(_x+1, _y+2, _w - 2, _h - 4);
g.drawRect(_x+2, _y+2, _w - 4, _h - 4);
g.endFill();
}
}
}
效果图：
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