Build 130105

DrumKit/Managers/UIManager.cs

@@ -0,0 +1,183 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.System;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+
+namespace DrumKit
+{
+    static class UIManager
+    {
+        private static Dictionary<string, DrumUI> drums;
+        private static Dictionary<VirtualKey, string> keymap;
+
+        public static Canvas TheCanvas { get; private set; }
+
+        #region Initialization
+        /// <summary>
+        /// Initializes the ui manager
+        /// </summary>
+        public static void Initialize()
+        {
+            drums = new Dictionary<string, DrumUI>();
+            keymap = new Dictionary<VirtualKey, string>();
+            
+            TheCanvas = new Canvas();
+        }
+
+        /// <summary>
+        /// Loads the ui stuff for drumkit
+        /// </summary>
+        public static async Task ReloadDrumkit()
+        {
+            // Delete previous
+            drums.Clear();
+            keymap.Clear();
+
+            // Load drums
+            foreach (var i in DrumsManager.CurrentDrumkit.Drums)
+            {
+                DrumUI drumui = new DrumUI();
+                await drumui.InitializeDrum(i, DrumsManager.CurrentDrumkitLocation);
+                drumui.PointerPressed += HandlerDrumPointerPressed;
+                drumui.DragDelta += HandlerDrumMoved;
+
+                TheCanvas.Children.Add(drumui.Element);
+                drums.Add(i.Id, drumui);
+            }
+        }
+
+        /// <summary>
+        /// Updates the layout.
+        /// </summary>
+        public static void ReloadLayout()
+        {
+            DrumUI drum;
+
+            foreach (var i in DrumsManager.CurrentDrumkitLayout.Drums)
+                if (drums.TryGetValue(i.TargetId, out drum))
+                    drum.UpdateLayout(i, TheCanvas.ActualWidth, TheCanvas.ActualHeight);
+        }
+
+        /// <summary>
+        /// Updates the configuration.
+        /// </summary>
+        public static async Task ReloadConfig()
+        {
+            foreach (var i in DrumsManager.CurrentDrumkitConfig.Drums)
+            {
+                // Enabled and not loaded
+                if (i.IsEnabled && !drums.ContainsKey(i.TargetId))
+                {
+                    Drum drum = DrumsManager.CurrentDrumkit.Drums.FirstOrDefault(x => x.Id == i.TargetId);
+                    if (drum != null)
+                    {
+                        DrumUI drumui = new DrumUI();
+                        await drumui.InitializeDrum(drum, DrumsManager.CurrentDrumkitLocation);
+                        drumui.PointerPressed += HandlerDrumPointerPressed;
+                        drumui.DragDelta += HandlerDrumMoved;
+
+                        drums.Add(i.TargetId, drumui);
+                    }
+                }
+
+                // Disabled and loaded
+                else if (!i.IsEnabled && drums.ContainsKey(i.TargetId))
+                {
+                    TheCanvas.Children.Remove(drums[i.TargetId].Element);
+                    drums.Remove(i.TargetId);
+                }
+
+                // Keyboard mapping
+                if (!keymap.ContainsKey(i.Key))
+                    keymap.Add(i.Key, i.TargetId);
+            }
+        }
+
+        #endregion
+
+        #region Event handlers
+        /// <summary>
+        /// Handles drum hit using mouse/touchpad
+        /// </summary>
+        private static void HandlerDrumPointerPressed(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
+        {
+            var button = sender as FrameworkElement;
+            var tag = button.Tag as string;
+
+            if (tag != null)
+                HandlerDrumClickedCommon(tag);
+        }
+
+        /// <summary>
+        /// Handles drum hit using keyboard
+        /// </summary>
+        public static void HandlerKeyDown(Windows.UI.Core.CoreWindow sender, Windows.UI.Core.KeyEventArgs args)
+        {
+            string drum;
+
+            // Key repeat or something
+            if (args.KeyStatus.WasKeyDown)
+                return;
+
+            // If key in key map, perform "click"
+            if (keymap.TryGetValue(args.VirtualKey, out drum))
+                HandlerDrumClickedCommon(drum);
+        }
+
+        /// <summary>
+        /// Handles drum hit.
+        /// </summary>
+        private static void HandlerDrumClickedCommon(string drum_id)
+        {
+            SoundManager.Play(drum_id, 0);
+
+            if (DataManager.Settings.Animations)
+                drums[drum_id].Hit();
+        }
+
+        /// <summary>
+        /// Handles drum movement.
+        /// </summary>
+        private static void HandlerDrumMoved(object sender, Windows.UI.Xaml.Controls.Primitives.DragDeltaEventArgs e)
+        {
+            var thumb = sender as Thumb;
+            var tag = thumb.Tag as string;
+            int drum_index = -1;
+
+            if (tag != null)
+                drum_index = DrumsManager.CurrentDrumkitLayout.Drums.FindIndex(x => x.TargetId == tag);
+
+            if (drum_index >= 0)
+            {
+                double delta_x = e.HorizontalChange / TheCanvas.ActualWidth;
+                double delta_y = e.VerticalChange / TheCanvas.ActualHeight;
+
+                if (double.IsInfinity(delta_x) || double.IsInfinity(delta_y) || double.IsNaN(delta_x) || double.IsNaN(delta_y))
+                    return;
+
+                DrumsManager.CurrentDrumkitLayout.Drums[drum_index].X += delta_x;
+                DrumsManager.CurrentDrumkitLayout.Drums[drum_index].Y += delta_y;
+
+                drums[tag].UpdateLayout(DrumsManager.CurrentDrumkitLayout.Drums[drum_index], TheCanvas.ActualWidth, TheCanvas.ActualHeight);
+            }
+        }
+        #endregion
+
+        public static void EnterEdit()
+        {
+            foreach (var i in drums)
+                i.Value.EnableEdit();
+        }
+
+        public static void ExitEdit()
+        {
+            foreach (var i in drums)
+                i.Value.DisableEdit();
+        }
+    }
+}