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/*
* Licensed under the Apache License, Version 2.0 (the "License"):
*    http://www.apache.org/licenses/LICENSE-2.0
*/
package com.google.maps.examples {
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Point;
import flash.display.DisplayObject;
import flash.display.Sprite;
import flash.display.Shape;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import com.google.maps.MapEvent;
import com.google.maps.Map;
import com.google.maps.MapType;
import com.google.maps.LatLng;
import com.google.maps.LatLngBounds;
import com.google.maps.ProjectionBase;
import com.google.maps.controls.MapTypeControl;
import com.google.maps.controls.ZoomControl;
import com.google.maps.controls.PositionControl;
import com.google.maps.controls.ControlPosition;
import com.google.maps.controls.ControlBase;
import com.google.maps.interfaces.IMap;

public class TextualZoomControl extends ControlBase {
	 
  /**
   * Constructor of custom control.
   * @constructor.
   * @param controlColour  Colour transform applied to control's black buttons.
   */
  public function TextualZoomControl() {
    // Control will be placed at the top left corner of the map,
    // 10 pixels from the edges.
    super(new ControlPosition(ControlPosition.ANCHOR_TOP_LEFT, 7, 7));
  }


  public override function initControlWithMap(map:IMap):void {
    createButton("Zoom in", 0, 0, 
                 function(event:Event):void
                 { map.zoomIn(); });
    createButton("Zoom out", 0, 20, 
                 function(event:Event):void
                 { map.zoomOut(); });
  }
	
  private function createButton(text:String,
				x:Number, 
                                y:Number,
                                callback:Function):void {
    var button:Sprite = new Sprite();
    button.x = x;
    button.y = y;
		
    var label:TextField = new TextField();
    label.text = text;
    label.x = 2;
    label.selectable = false;
    label.autoSize = TextFieldAutoSize.CENTER;
    var format:TextFormat = new TextFormat("Verdana");
    label.setTextFormat(format);
        
    var buttonWidth:Number = 100;
    var background:Shape = new Shape();
    background.graphics.beginFill(0xFFFFFF);
    background.graphics.lineStyle(1, 0x000000);
    background.graphics.drawRoundRect(0, 0, buttonWidth, 18, 4);

    button.addChild(background);
    button.addChild(label);
    button.addEventListener(MouseEvent.CLICK, callback);
		
    addChild(button);
  }
}
}