Пример #1
0
        /// <summary>
        /// Dequeues an UIElement from the specified renderer.
        /// </summary>
        /// <param name="renderer">
        /// Specifies the corresponding renderer to dequeue the UIElement
        /// </param>
        /// <returns>
        /// Returns the UIelement.
        /// </returns>
        public T Dequeue(GridCellRendererBase renderer)
        {
            if (!ContainsKey(renderer))
            {
                return(default(T));
            }

            Queue <WeakReference> queue = base[renderer];

            if (queue.Count == 0)
            {
                return(default(T));
            }

            var el = queue.Dequeue().Target as T;

            if (el == null)
            {
                return(default(T));
            }

            el.Visibility = Visibility.Visible;

            return(el);
        }
Пример #2
0
        /// <summary>
        /// Gets the <see cref="System.Collections.Generic.Queue{WeakReference}"/> for the specified Renderer.
        /// </summary>
        /// <value></value>
        public new Queue <WeakReference> this[GridCellRendererBase renderer]
        {
            get
            {
                if (ContainsKey(renderer))
                {
                    return(base[renderer]);
                }

                Queue <WeakReference> queue = base[renderer] = new Queue <WeakReference>();
                return(queue);
            }
        }
Пример #3
0
 /// <summary>
 /// Cheks whether the Render Dictionary contains the corresponding renderer.
 /// </summary>
 /// <param name="cellRenderer"></param>
 /// <returns></returns>
 /// <remarks></remarks>
 public bool ContainsValue(GridCellRendererBase cellRenderer)
 {
     return(this.content.ContainsValue(cellRenderer));
 }
Пример #4
0
 /// <summary>
 /// Enqueues the UI element to the specified renderer.
 /// </summary>
 /// <param name="renderer">
 /// The corresponding renderer to enqueue the UIElement in it.
 /// </param>
 /// <param name="uiElement">
 /// The corresponding UIElement to perform enqueue operation.
 /// </param>
 public void Enqueue(GridCellRendererBase renderer, T uiElement)
 {
     this[renderer].Enqueue(new WeakReference(uiElement));
     uiElement.Visibility = Visibility.Collapsed;
 }