git.r.bdr.sh - rbdr/super-polarity/blob - SuperPolarity/Widget.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Linq;
   4 using System.Text;
   5 using Microsoft.Xna.Framework;
   6 using Microsoft.Xna.Framework.Graphics;
   7
   8 namespace SuperPolarity
   9 {
  10     class Widget
  11     {
  12         public List<Widget> Children;
  13         public Dictionary<string, List<Action<float>>> Listeners;
  14
  15         public Vector2 Position;
  16         public SuperPolarity Game;
  17
  18         protected bool Active;
  19
  20         public Widget(SuperPolarity game, Vector2 position)
  21         {
  22             Game = game;
  23             Position = position;
  24             Active = false;
  25             Children = new List<Widget>();
  26             Listeners = new Dictionary<string, List<Action<float>>>();
  27         }
  28
  29         public void Activate()
  30         {
  31             Active = true;
  32         }
  33
  34         public void Deactivate()
  35         {
  36             Active = false;
  37         }
  38
  39         public virtual void AppendChild(Widget widget)
  40         {
  41             Children.Add(widget);
  42         }
  43
  44         public virtual void Bind(string eventName, Action<float> eventListener)
  45         {
  46             List<Action<float>> newListenerList;
  47             List<Action<float>> listenerList;
  48             bool foundListeners;
  49
  50             if (!Listeners.ContainsKey(eventName))
  51             {
  52                 newListenerList = new List<Action<float>>();
  53                 Listeners.Add(eventName, newListenerList);
  54             }
  55
  56             foundListeners = Listeners.TryGetValue(eventName, out listenerList);
  57
  58             listenerList.Add(eventListener);
  59         }
  60
  61         public virtual void Unbind(string eventName, Action<float> eventListener)
  62         {
  63             // NOT YET IMPLEMENTED;
  64         }
  65
  66         public virtual void Dispatch(string eventName, float value)
  67         {
  68             List<Action<float>> listenerList;
  69             bool foundListeners;
  70
  71             foundListeners = Listeners.TryGetValue(eventName, out listenerList);
  72
  73             if (!foundListeners)
  74             {
  75                 return;
  76             }
  77
  78             foreach (Action<float> method in listenerList)
  79             {
  80                 method(value);
  81             }
  82         }
  83
  84         public virtual void Update(GameTime gameTime)
  85         {
  86         }
  87
  88         public virtual void Draw(SpriteBatch spriteBatch)
  89         {
  90         }
  91     }
  92 }