DragTest

Spriteを継承する方法で、TextFieldにドラッグ機能を付けました。

by lla 17 Jun 2012

Embed

/**
 * Copyright lla ( http://wonderfl.net/user/lla )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/t5K4
 */

package {

  import flash.display.Sprite;
  import flash.events.Event;
  public class DragTest extends Sprite{

      public function DragTest(){
        var s: Square = new Square();
        s.x = s.y = 50;
        addChild(s);

        var s2: Square = new Square();
        s2.x = s2.y = 100;
        addChild(s2);

      }
  }
}

import flash.events.MouseEvent;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.text.TextField;
import flash.geom.Rectangle;
import flash.display.DisplayObject;
class Square extends flash.display.Sprite {
  public var tf: flash.text.TextField;
  public var bounds: Rectangle;
  public function Square(){
    super();
    tf = new flash.text.TextField();
    tf.text = "";
    tf.border = true;
    tf.background = true;
    addChild(tf);
    
    //tf.selectable = false;
    this..mouseChildren = false;
    this.buttonMode = true;

    addEventListener(Event.ADDED_TO_STAGE, addEvents);
    
  }
  public function addEvents(e: Event): void {
    bounds = new Rectangle(0, 0, stage.stageWidth - width, stage.stageHeight - height);

    addEventListener(MouseEvent.MOUSE_DOWN, startDragging);
    stage.addEventListener(MouseEvent.MOUSE_UP, stopDragging);
    stage.addEventListener(Event.MOUSE_LEAVE, stopDragging);
  }
  
  public function startDragging(e: Event): void {
    //e.target.parent.addChildAt(e.target as DisplayObject);//square<-textField
    tf.text = String(e.target) + "\n" + String(e.currentTarget); 

    //parent.addChild(e.currentTarget as DisplayObject); //stage<-Square
    parent.addChild(this);  //stage<-Square
    startDrag(false, bounds);
  }
  
  public function stopDragging(e: Event): void{
    stopDrag();
  }
  
}