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Assets/CoolapeFrame/3rd/NGUI_Enhance/Scripts/Editor/BMFontReader.cs

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+//----------------------------------------------
+//            NGUI: Next-Gen UI kit
+// Copyright © 2011-2015 Tasharen Entertainment
+//----------------------------------------------
+
+using UnityEngine;
+using UnityEditor;
+using System.Text;
+
+/// <summary>
+/// Helper class that takes care of loading BMFont's glyph information from the specified byte array.
+/// This functionality is not a part of BMFont anymore because Flash export option can't handle System.IO functions.
+/// </summary>
+
+public static class BMFontReader
+{
+	/// <summary>
+	/// Helper function that retrieves the string value of the key=value pair.
+	/// </summary>
+
+	static string GetString (string s)
+	{
+		int idx = s.IndexOf('=');
+		return (idx == -1) ? "" : s.Substring(idx + 1);
+	}
+
+	/// <summary>
+	/// Helper function that retrieves the integer value of the key=value pair.
+	/// </summary>
+
+	static int GetInt (string s)
+	{
+		int val = 0;
+		string text = GetString(s);
+#if UNITY_FLASH
+		try { val = int.Parse(text); } catch (System.Exception) { }
+#else
+		int.TryParse(text, out val);
+#endif
+		return val;
+	}
+
+	/// <summary>
+	/// Reload the font data.
+	/// </summary>
+
+	static public void Load (BMFont font, string name, byte[] bytes)
+	{
+		font.Clear();
+
+		if (bytes != null)
+		{
+			ByteReader reader = new ByteReader(bytes);
+			char[] separator = new char[] { ' ' };
+
+			while (reader.canRead)
+			{
+				string line = reader.ReadLine();
+				if (string.IsNullOrEmpty(line)) break;
+				string[] split = line.Split(separator, System.StringSplitOptions.RemoveEmptyEntries);
+				int len = split.Length;
+
+				if (split[0] == "char")
+				{
+					// Expected data style:
+					// char id=13 x=506 y=62 width=3 height=3 xoffset=-1 yoffset=50 xadvance=0 page=0 chnl=15
+
+					int channel = (len > 10) ? GetInt(split[10]) : 15;
+
+					if (len > 9 && GetInt(split[9]) > 0)
+					{
+						Debug.LogError("Your font was exported with more than one texture. Only one texture is supported by NGUI.\n" +
+							"You need to re-export your font, enlarging the texture's dimensions until everything fits into just one texture.");
+						break;
+					}
+
+					if (len > 8)
+					{
+						int id = GetInt(split[1]);
+						BMGlyph glyph = font.GetGlyph(id, true);
+
+						if (glyph != null)
+						{
+							glyph.x			= GetInt(split[2]);
+							glyph.y			= GetInt(split[3]);
+							glyph.width		= GetInt(split[4]);
+							glyph.height	= GetInt(split[5]);
+							glyph.offsetX	= GetInt(split[6]);
+							glyph.offsetY	= GetInt(split[7]);
+							glyph.advance	= GetInt(split[8]);
+							glyph.channel	= channel;
+						}
+						else Debug.Log("Char: " + split[1] + " (" + id + ") is NULL");
+					}
+					else
+					{
+						Debug.LogError("Unexpected number of entries for the 'char' field (" + name + ", " + split.Length + "):\n" + line);
+						break;
+					}
+				}
+				else if (split[0] == "kerning")
+				{
+					// Expected data style:
+					// kerning first=84 second=244 amount=-5 
+
+					if (len > 3)
+					{
+						int first  = GetInt(split[1]);
+						int second = GetInt(split[2]);
+						int amount = GetInt(split[3]);
+
+						BMGlyph glyph = font.GetGlyph(second, true);
+						if (glyph != null) glyph.SetKerning(first, amount);
+					}
+					else
+					{
+						Debug.LogError("Unexpected number of entries for the 'kerning' field (" +
+							name + ", " + split.Length + "):\n" + line);
+						break;
+					}
+				}
+				else if (split[0] == "common")
+				{
+					// Expected data style:
+					// common lineHeight=64 base=51 scaleW=512 scaleH=512 pages=1 packed=0 alphaChnl=1 redChnl=4 greenChnl=4 blueChnl=4
+
+					if (len > 5)
+					{
+						font.charSize	= GetInt(split[1]);
+						font.baseOffset = GetInt(split[2]);
+						font.texWidth	= GetInt(split[3]);
+						font.texHeight	= GetInt(split[4]);
+
+						int pages = GetInt(split[5]);
+
+						if (pages != 1)
+						{
+							Debug.LogError("Font '" + name + "' must be created with only 1 texture, not " + pages);
+							break;
+						}
+					}
+					else
+					{
+						Debug.LogError("Unexpected number of entries for the 'common' field (" +
+							name + ", " + split.Length + "):\n" + line);
+						break;
+					}
+				}
+				else if (split[0] == "page")
+				{
+					// Expected data style:
+					// page id=0 file="textureName.png"
+
+					if (len > 2)
+					{
+						font.spriteName = GetString(split[2]).Replace("\"", "");
+						font.spriteName = font.spriteName.Replace(".png", "");
+						font.spriteName = font.spriteName.Replace(".tga", "");
+					}
+				}
+			}
+		}
+	}
+}