planned Queue<T> capacity set to INIT_QUEUE_CAPACITY constant in Interface

diff --git a/Crow/src/Interface.cs b/Crow/src/Interface.cs
index c54af96cd9f902d68042e6711dd0a19fd2e146b7..11417dec8e0832766add3e6e24ffe907633b46b1 100644 (file)
--- a/Crow/src/Interface.cs
+++ b/Crow/src/Interface.cs
@@ -252,10 +252,9 @@ namespace Crow
                        while (!Glfw3.WindowShouldClose (hWin)) {
                                Glfw3.PollEvents ();
                                UpdateFrame ();
-                               Thread.Sleep(1);
                        }
                }
-               public virtual void UpdateFrame () { }
+               public virtual void UpdateFrame () { Thread.Sleep (1); }
 
                public virtual void Quit () => Glfw3.SetWindowShouldClose (hWin, 1);
 
@@ -311,6 +310,8 @@ namespace Crow
                }*/
 
                #region Static and constants
+               //initial capacity for layouting and clipping queues.
+               const int INIT_QUEUE_CAPACITY = 512;
                /// <summary>Time interval in milisecond between Updates of the interface</summary>
                public static int UPDATE_INTERVAL = 5;
                /// <summary>Crow configuration root path</summary>
@@ -402,11 +403,11 @@ namespace Crow
                /// </summary>
                public Dictionary<string,object> Ressources = new Dictionary<string, object>();
                /// <summary>The Main layouting queue.</summary>
-               public Queue<LayoutingQueueItem> LayoutingQueue = new Queue<LayoutingQueueItem> ();
+               public Queue<LayoutingQueueItem> LayoutingQueue = new Queue<LayoutingQueueItem> (INIT_QUEUE_CAPACITY);
                /// <summary>Store discarded lqi between two updates</summary>
                public Queue<LayoutingQueueItem> DiscardQueue;
                /// <summary>Main drawing queue, holding layouted controls</summary>
-               public Queue<Widget> ClippingQueue = new Queue<Widget>();
+               public Queue<Widget> ClippingQueue = new Queue<Widget>(INIT_QUEUE_CAPACITY);
                //TODO:use object instead for complex copy paste
                public string Clipboard {
                        get => Glfw3.GetClipboardString (hWin);
@@ -710,6 +711,7 @@ namespace Crow
                /// Result: the Interface bitmap is drawn in memory (byte[] bmp) and a dirtyRect and bitmap are available
                /// </summary>
                public void Update(Context ctx = null){
+
                        CrowThread[] tmpThreads;
                        lock (CrowThreads) {
                                tmpThreads = new CrowThread[CrowThreads.Count];
@@ -763,7 +765,7 @@ namespace Crow
                                DbgLogger.StartEvent (DbgEvtType.Layouting);
                                PerformanceMeasure.Begin (PerformanceMeasure.Kind.Layouting);
 
-                               DiscardQueue = new Queue<LayoutingQueueItem> ();
+                               DiscardQueue = new Queue<LayoutingQueueItem> (LayoutingQueue.Count);
                                //Debug.WriteLine ("======= Layouting queue start =======");
                                LayoutingQueueItem lqi;
                                while (LayoutingQueue.Count > 0) {
@@ -1323,10 +1325,7 @@ namespace Crow
                        //                      keyboardRepeatThread.Start ();
                }
 
-               public bool IsKeyDown (Key key)
-               {
-                       return false;
-               }
+               public bool IsKeyDown (Key key) => Glfw3.GetKey (hWin, key) == InputAction.Press;
                #endregion
 
                #region Tooltip handling