A patch to fix NGUI 2.6.4. dynamic font problem which cause randomly disappearing of fonts.

ngui-2.6.4-dynamic-fonts-fix.patch

diff -r 6e8e22fe6d82 Assets/NGUI/Scripts/Internal/UIWidget.cs
--- a/Assets/NGUI/Scripts/Internal/UIWidget.cs  Thu Aug 08 12:15:03 2013 +0900
+++ b/Assets/NGUI/Scripts/Internal/UIWidget.cs  Thu Aug 08 12:15:07 2013 +0900
@@ -7,6 +7,8 @@
 #define OLD_UNITY
 #endif
  
+#define DYNAMIC_FONT_BUG_FIX
+
 using UnityEngine;
 using System.Collections.Generic;
  
@@ -484,7 +486,11 @@
    /// Clear references.
    /// </summary>
  
+#if DYNAMIC_FONT_BUG_FIX
+   protected virtual void OnDisable ()
+#else
    void OnDisable ()
+#endif
    {
        if (!keepMaterial)
        {
diff -r 6e8e22fe6d82 Assets/NGUI/Scripts/UI/UIFont.cs
--- a/Assets/NGUI/Scripts/UI/UIFont.cs  Thu Aug 08 12:15:03 2013 +0900
+++ b/Assets/NGUI/Scripts/UI/UIFont.cs  Thu Aug 08 12:15:07 2013 +0900
@@ -10,6 +10,8 @@
 #define DYNAMIC_FONT
 #endif
  
+#define DYNAMIC_FONT_BUG_FIX
+
 using UnityEngine;
 using System.Collections.Generic;
 using System.Text;
@@ -672,13 +674,21 @@
 #endif
        {
            if (encoding) text = NGUITools.StripSymbols(text);
-#if DYNAMIC_FONT
+
+#if DYNAMIC_FONT_BUG_FIX
+           if (dynamic)
+           {
+               mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
+           }
+#else
+#  if DYNAMIC_FONT
            if (dynamic)
            {
                mDynamicFont.textureRebuildCallback = OnFontChanged;
                mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
                mDynamicFont.textureRebuildCallback = null;
            }
+#  endif
 #endif
            int length = text.Length;
            int maxX = 0;
@@ -777,13 +787,20 @@
        bool useSymbols = encoding && symbolStyle != SymbolStyle.None && hasSymbols;
        bool dynamic = isDynamic;
  
-#if DYNAMIC_FONT
+#if DYNAMIC_FONT_BUG_FIX
+       if (dynamic)
+       {
+           mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
+       }
+#else
+#  if DYNAMIC_FONT
        if (dynamic)
        {
            mDynamicFont.textureRebuildCallback = OnFontChanged;
            mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
            mDynamicFont.textureRebuildCallback = null;
        }
+#  endif
 #endif
        while (currentCharacterIndex > 0 && remainingWidth > 0)
        {
@@ -861,7 +878,15 @@
        bool useSymbols = encoding && symbolStyle != SymbolStyle.None && hasSymbols;
        bool dynamic = isDynamic;
  
-#if DYNAMIC_FONT
+#if DYNAMIC_FONT_BUG_FIX
+       // Make sure the characters are present in the dynamic font before printing them
+       if (dynamic)
+       {
+           mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
+       }
+
+#else
+#  if DYNAMIC_FONT
        // Make sure the characters are present in the dynamic font before printing them
        if (dynamic)
        {
@@ -869,6 +894,7 @@
            mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
            mDynamicFont.textureRebuildCallback = null;
        }
+#  endif
 #endif
  
        // Run through all characters
@@ -1098,13 +1124,21 @@
  
            // Make sure the characters are present in the dynamic font before printing them
            bool dynamic = isDynamic;
-#if DYNAMIC_FONT
+
+#if DYNAMIC_FONT_BUG_FIX
+           if (dynamic)
+           {
+               mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
+           }
+#else
+#  if DYNAMIC_FONT
            if (dynamic)
            {
                mDynamicFont.textureRebuildCallback = OnFontChanged;
                mDynamicFont.RequestCharactersInTexture(text, mDynamicFontSize, mDynamicFontStyle);
                mDynamicFont.textureRebuildCallback = null;
            }
+#  endif
 #endif
            mColors.Clear();
            mColors.Add(color);
diff -r 6e8e22fe6d82 Assets/NGUI/Scripts/UI/UILabel.cs
--- a/Assets/NGUI/Scripts/UI/UILabel.cs Thu Aug 08 12:15:03 2013 +0900
+++ b/Assets/NGUI/Scripts/UI/UILabel.cs Thu Aug 08 12:15:07 2013 +0900
@@ -2,9 +2,11 @@
 //            NGUI: Next-Gen UI kit
 // Copyright © 2011-2013 Tasharen Entertainment
 //----------------------------------------------
+#define DYNAMIC_FONT_BUG_FIX
  
 using UnityEngine;
 using System.Collections.Generic;
+using System.Collections;
 using System;
  
 [ExecuteInEditMode]
@@ -110,11 +112,26 @@
        {
            if (mFont != value)
            {
+#if DYNAMIC_FONT_BUG_FIX
+               if (mFont != null && mFont.dynamicFont != null) 
+               {
+                   Debug.Log ("remove_old_font_texture_event_handler");
+                   mFont.dynamicFont.textureRebuildCallback -= OnFontTextureUpdated;
+               }
+#endif
                mFont = value;
                material = (mFont != null) ? mFont.material : null;
                mChanged = true;
                hasChanged = true;
                MarkAsChanged();
+
+#if DYNAMIC_FONT_BUG_FIX
+               if (mFont != null && mFont.dynamicFont != null) 
+               {
+                   Debug.Log ("add_new_font_texture_event_handler");
+                   mFont.dynamicFont.textureRebuildCallback += OnFontTextureUpdated;
+               }
+#endif
            }
        }
    }
@@ -674,4 +691,33 @@
            }
        }
    }
+
+#if DYNAMIC_FONT_BUG_FIX
+   protected override void OnEnable ()
+   {
+       base.OnEnable ();
+
+       if (mFont != null && mFont.dynamicFont != null) 
+       {
+           Debug.Log ("add_font_texture_event_handler");
+           mFont.dynamicFont.textureRebuildCallback += OnFontTextureUpdated;
+       }
+   }
+
+   protected override void OnDisable ()
+   {
+       if (mFont != null && mFont.dynamicFont != null) 
+       {
+           Debug.Log ("remove_font_texture_event_handler");
+           mFont.dynamicFont.textureRebuildCallback -= OnFontTextureUpdated;
+       }
+       base.OnDisable ();
+   }
+
+   void OnFontTextureUpdated()
+   {
+       Debug.Log ("on_font_texture_updated:" + mText);
+       MarkAsChanged ();
+   }
+#endif
 }
diff -r 6e8e22fe6d82 Assets/NGUI/Scripts/UI/UIPanel.cs
--- a/Assets/NGUI/Scripts/UI/UIPanel.cs Thu Aug 08 12:15:03 2013 +0900
+++ b/Assets/NGUI/Scripts/UI/UIPanel.cs Thu Aug 08 12:15:07 2013 +0900
@@ -11,6 +11,8 @@
 #define OLD_UNITY
 #endif
  
+#define DYNAMIC_FONT_BUG_FIX
+
 using UnityEngine;
 using System.Collections.Generic;
  
@@ -1040,7 +1042,11 @@
    /// Main update function
    /// </summary>
  
+#if DYNAMIC_FONT_BUG_FIX
+   void OnGUI ()
+#else
    void LateUpdate ()
+#endif
    {
        mUpdateTime = Time.realtimeSinceStartup;
        UpdateTransformMatrix();
@@ -1111,7 +1117,13 @@
    {
        UIWidget[] wd = GetComponentsInChildren<UIWidget>();
        for (int i = 0, imax = wd.Length; i < imax; ++i) wd[i].Update();
+
+#if DYNAMIC_FONT_BUG_FIX
+       OnGUI();
+#else
        LateUpdate();
+#endif
+
    }
  
 #if UNITY_EDITOR

감사 합니다.