Unity DF-GUI 中文输入以及自动换行

       在使用Daikon Forge GUI过程中，发现dfTextbox编辑框无法输入中文，dfLabel和dfRichTextLabel文本控件中文无法自动换行。对源代码进行了更改，以便支持中文。不同版本可能更改的地方会不同，这边的版本为Daikon Forge GUI 1.0.15，Unity 4.3.1。

dfTextbox中文输入

当前无法输入中文，是因为没有开启Input.imeCompositionMode IME组合方式。打开 dfTextbox.cs文件，添加以下方法：

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protected  internal  override  void OnGotFocus( dfFocusEventArgs args )     {         Input.imeCompositionMode = IMECompositionMode.On;          base.OnGotFocus( args );     }      protected  internal  override  void OnLostFocus( dfFocusEventArgs args )     {          base.OnLostFocus( args );         Input.imeCompositionMode = IMECompositionMode.Auto;     }

效果图：

dfLabel和dfRichTextLabel中文自动换行

文本控件中文无法自动换行，是因为DF-GUI只把英文进行分词，方式是遇到空格就分词，这边要加上中文的处理，即遇到中文就要进行分词。打开 dfMarkupTokenizer.cs文件，添加一个扩展方法，用来判断是否中文，代码如下：

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public  static  class CharExtensions {      public  static  bool IsChinese( this Char ch)     {         var low =  '\u4E00';         var high =  '\u9FA5';          return ch.CompareTo(low) * ch.CompareTo(high) <=  0;     } }

修改以下方法：

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public class dfMarkupTokenizer {     private dfMarkupToken parseNonWhitespace()     {         var startOffset = index;         var endOffset = index;         while( index < source.Length )         {              // 中文每个字单独分开             if ( Peek().IsChinese() )             {                 Advance();                 break;             }             var next = Advance();             if( char.IsWhiteSpace( next ) || AtTagPosition() )             {                 break;             }             endOffset += 1;         }         var token = dfMarkupToken.Obtain( source, dfMarkupTokenType.Text, startOffset, endOffset );         return token;     } } public class dfPlainTextTokenizer {     private List tokenize( string source )     {         // Flush the object pools         dfMarkupToken.Reset();         dfMarkupTokenAttribute.Reset();         tokens.Clear();         var i = 0;         var x = 0;         var length = source.Length;         while( i < length )         {             // Skip carriage returns altogether             if( source[ i ] == '\r' )             {                 i += 1;                 x = i;                 continue;             }             #region Extract non-whitespace text             while( i < length && !char.IsWhiteSpace( source[ i ] ) )             {                  // 中文每个字单独分开                 if ( source[ i ].IsChinese() )                 {                     i += 1;                     break;                 }                 i += 1;             }             if( i > x )             {                 tokens.Add( dfMarkupToken.Obtain(                     source,                     dfMarkupTokenType.Text,                     x,                     i - 1                 ) );                 x = i;             }             #endregion             // ……         }         return this.tokens;     } }

打开 dfDynamicFont.cs文件，修改以下方法：

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public class dfDynamicFont : dfFontBase {     public class DynamicFontRenderer : dfFontRendererBase     {         private dfList calculateLinebreaks()         {             try             {                 //@Profiler.BeginSample( "Calculate line breaks" );                 if( lines != null )                 {                     return lines;                 }                 lines = dfList.Obtain();                 var font = (dfDynamicFont)Font;                 var lastBreak = 0;                 var startIndex = 0;                 var index = 0;                 var lineWidth = 0;                 var lineHeight = font.Baseline * TextScale;                 while( index < tokens.Count && lines.Count * lineHeight <= MaxSize.y + lineHeight )                 {                     var token = tokens[ index ];                     var type = token.TokenType;                     if( type == dfMarkupTokenType.Newline )                     {                         lines.Add( LineRenderInfo.Obtain( startIndex, index ) );                         startIndex = lastBreak = ++index;                         lineWidth = 0;                         continue;                     }                     var tokenWidth = Mathf.CeilToInt( token.Width );                     var canWrap =                         WordWrap &&                         lastBreak > startIndex &&                         (                             type == dfMarkupTokenType.Text ||                             ( type == dfMarkupTokenType.StartTag && token.Matches( "sprite" ) )                         );                     if( canWrap && lineWidth + tokenWidth >= MaxSize.x )                     {                         if( lastBreak > startIndex )                         {                              //lines.Add( LineRenderInfo.Obtain( startIndex, lastBreak - 1 ) );                             // 中文不要减1，不然会缺字                             lines.Add( LineRenderInfo.Obtain( startIndex, lastBreak ) );                             startIndex = index = ++lastBreak;                             lineWidth = 0;                         }                         else                         {                             lines.Add( LineRenderInfo.Obtain( startIndex, lastBreak - 1 ) );                             startIndex = lastBreak = ++index;                             lineWidth = 0;                         }                         continue;                     }                     if( type == dfMarkupTokenType.Whitespace )                     {                         lastBreak = index;                     }                      // 增加中文换行                     else if ( type == dfMarkupTokenType.Text && token.Length == 1 && token.Value[0].IsChinese() )                     {                         lastBreak = index;                     }                     lineWidth += tokenWidth;                     index += 1;                 }                 if( startIndex < tokens.Count )                 {                     lines.Add( LineRenderInfo.Obtain( startIndex, tokens.Count - 1 ) );                 }                 for( int i = 0; i < lines.Count; i++ )                 {                     calculateLineSize( lines[ i ] );                 }                 return lines;             }             finally             {                 //@Profiler.EndSample();             }         }     ｝ ｝

打开 dfMarkupElement.cs文件，修改以下方法：

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public class dfMarkupString : dfMarkupElement {     internal dfMarkupElement SplitWords()     {         //@Profiler.BeginSample( "dfMarkupString.SplitWords()" );         var tag = dfMarkupTagSpan.Obtain();         var i = 0;         var x = 0;         var length = Text.Length;         while( i < length )         {             #region Words             while( i < length && !char.IsWhiteSpace( Text[ i ] ) )             {                  // 中文每个字单独分开                 if ( Text[ i ].IsChinese() )                 {                     i += 1;                     break;                 }                 i += 1;             }             if( i > x )             {                 tag.AddChildNode( dfMarkupString.Obtain( Text.Substring( x, i - x ) ) );                 x = i;             }             #endregion             // ……         }         //@Profiler.EndSample();         return tag;     } ｝

效果图：