refactor: OnBuildFonts -> BuildFonts

Dalamud/Interface/Internal/InterfaceManager.cs

@@ -48,7 +48,7 @@ namespace Dalamud.Interface.Internal
 
         private readonly ManualResetEvent fontBuildSignal;
         private readonly ISwapChainAddressResolver address;
-        private RawDX11Scene scene;
+        private RawDX11Scene? scene;
 
         // can't access imgui IO before first present call
         private bool lastWantCapture = false;
@@ -136,6 +136,11 @@ namespace Dalamud.Interface.Internal
         /// </summary>
         public event RawDX11Scene.BuildUIDelegate Draw;
 
+        /// <summary>
+        /// Gets or sets an action that is executed when fonts are rebuilt.
+        /// </summary>
+        public event Action BuildFonts;
+
         /// <summary>
         /// Gets the default ImGui font.
         /// </summary>
@@ -151,11 +156,6 @@ namespace Dalamud.Interface.Internal
         /// </summary>
         public static ImFontPtr MonoFont { get; private set; }
 
-        /// <summary>
-        /// Gets or sets an action that is exexuted when fonts are rebuilt.
-        /// </summary>
-        public Action OnBuildFonts { get; set; }
-
         /// <summary>
         /// Gets or sets the pointer to ImGui.IO(), when it was last used.
         /// </summary>
@@ -164,7 +164,7 @@ namespace Dalamud.Interface.Internal
         /// <summary>
         /// Gets the D3D11 device instance.
         /// </summary>
-        public Device Device => this.scene.Device;
+        public Device? Device => this.scene?.Device;
 
         /// <summary>
         /// Gets the address handle to the main process window.
@@ -494,7 +494,7 @@ namespace Dalamud.Interface.Internal
             MonoFont = ImGui.GetIO().Fonts.AddFontFromFileTTF(fontPathMono, 16.0f);
 
             Log.Verbose("[FONT] Invoke OnBuildFonts");
-            this.OnBuildFonts?.Invoke();
+            this.BuildFonts?.Invoke();
             Log.Verbose("[FONT] OnBuildFonts OK!");
 
             for (var i = 0; i < ImGui.GetIO().Fonts.Fonts.Size; i++)

Dalamud/Interface/UiBuilder.cs

@@ -35,7 +35,9 @@ namespace Dalamud.Interface
             this.stopwatch = new Stopwatch();
             this.namespaceName = namespaceName;
 
-            Service<InterfaceManager>.Get().Draw += this.OnDraw;
+            var interfaceManager = Service<InterfaceManager>.Get();
+            interfaceManager.Draw += this.OnDraw;
+            interfaceManager.BuildFonts += this.OnBuildFonts;
         }
 
         /// <summary>
@@ -49,6 +51,15 @@ namespace Dalamud.Interface
         /// </summary>
         public event EventHandler OpenConfigUi;
 
+        /// <summary>
+        /// Gets or sets an action that is called any time ImGui fonts need to be rebuilt.<br/>
+        /// Any ImFontPtr objects that you store <strong>can be invalidated</strong> when fonts are rebuilt
+        /// (at any time), so you should both reload your custom fonts and restore those
+        /// pointers inside this handler.<br/>
+        /// <strong>PLEASE remove this handler inside Dispose, or when you no longer need your fonts!</strong>
+        /// </summary>
+        public event Action BuildFonts;
+
         /// <summary>
         /// Gets the default Dalamud font based on Noto Sans CJK Medium in 17pt - supporting all game languages and icons.
         /// </summary>
@@ -103,19 +114,6 @@ namespace Dalamud.Interface
             set => Service<InterfaceManager>.Get().OverrideGameCursor = value;
         }
 
-        /// <summary>
-        /// Gets or sets an action that is called any time ImGui fonts need to be rebuilt.<br/>
-        /// Any ImFontPtr objects that you store <strong>can be invalidated</strong> when fonts are rebuilt
-        /// (at any time), so you should both reload your custom fonts and restore those
-        /// pointers inside this handler.<br/>
-        /// <strong>PLEASE remove this handler inside Dispose, or when you no longer need your fonts!</strong>
-        /// </summary>
-        public Action OnBuildFonts
-        {
-            get => Service<InterfaceManager>.Get().OnBuildFonts;
-            set => Service<InterfaceManager>.Get().OnBuildFonts = value;
-        }
-
         /// <summary>
         /// Gets or sets a value indicating whether statistics about UI draw time should be collected.
         /// </summary>
@@ -218,7 +216,10 @@ namespace Dalamud.Interface
         /// </summary>
         public void Dispose()
         {
-            Service<InterfaceManager>.Get().Draw -= this.OnDraw;
+            var interfaceManager = Service<InterfaceManager>.Get();
+
+            interfaceManager.Draw -= this.OnDraw;
+            interfaceManager.BuildFonts -= this.BuildFonts;
         }
 
         /// <summary>
@@ -286,5 +287,10 @@ namespace Dalamud.Interface
 
             ImGui.PopID();
         }
+
+        private void OnBuildFonts()
+        {
+            this.BuildFonts.Invoke();
+        }
     }
 }