C# TextLine.Add方法代码示例

        FormattedText GetFunctionIntelliSense(FunctionInfo functionInfo, int currentArgIndex)
        {
            var nameLine = new TextLine { new TextRun { Text = functionInfo.Name, LinkAddress = FixHelpTopic(functionInfo.HelpTopic) } };
            nameLine.Add(new TextRun { Text = "(" });
            if (functionInfo.ArgumentList.Count > 0)
            {
                var argNames = functionInfo.ArgumentList.Take(currentArgIndex).Select(arg => arg.Name).ToArray();
                if (argNames.Length >= 1)
                {
                    nameLine.Add(new TextRun { Text = string.Join(_argumentSeparator, argNames) });
                }

                if (functionInfo.ArgumentList.Count > currentArgIndex)
                {
                    if (argNames.Length >= 1)
                    {
                        nameLine.Add(new TextRun
                        {
                            Text = _argumentSeparator
                        });
                    }

                    nameLine.Add(new TextRun
                    {
                        Text = functionInfo.ArgumentList[currentArgIndex].Name,
                        Style = System.Drawing.FontStyle.Bold
                    });

                    argNames = functionInfo.ArgumentList.Skip(currentArgIndex + 1).Select(arg => arg.Name).ToArray();
                    if (argNames.Length >= 1)
                    {
                        nameLine.Add(new TextRun {Text = _argumentSeparator + string.Join(_argumentSeparator, argNames)});
                    }
                }
            }
            nameLine.Add(new TextRun { Text = ")" });

            var descriptionLines = GetFunctionDescriptionOrNull(functionInfo);

            var formattedText = new FormattedText { nameLine, descriptionLines };
            if (functionInfo.ArgumentList.Count > currentArgIndex)
            {
                var description = GetArgumentDescriptionOrNull(functionInfo.ArgumentList[currentArgIndex]);
                if (description != null)
                    formattedText.Add(description);
            }

            return formattedText;
        }

    protected void Interpret(Graphics g)
    {
      this._isMeasureInSync = false; // if structure is changed, the measure is out of sync

      char[] searchchars = new Char[] { '\\', '\r', '\n', ')' };

      // Modification of StringFormat is necessary to avoid 
      // too big spaces between successive words
      StringFormat strfmt = (StringFormat)StringFormat.GenericTypographic.Clone();
      strfmt.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;

      strfmt.LineAlignment = StringAlignment.Far;
      strfmt.Alignment = StringAlignment.Near;

      // next statement is necessary to have a consistent string length both
      // on 0 degree rotated text and rotated text
      // without this statement, the text is fitted to the pixel grid, which
      // leads to "steps" during scaling
      g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

      MeasureFont(g, _font, out _cyBaseLineSpace, out _cyBaseAscent, out _cyBaseDescent);

      System.Collections.Stack itemstack = new System.Collections.Stack();

      Font currFont = (Font)_font.Clone();


      if(null!=_cachedTextLines)
        _cachedTextLines.Clear(); // delete old contents 
      else
        _cachedTextLines = new TextLine.TextLineCollection();


      TextLine currTextLine = new TextLine();
        
      // create a new text line first
      _cachedTextLines.Add(currTextLine);
      int currTxtIdx = 0;

      TextItem currTextItem = new TextItem(currFont);
      //      TextItem firstItem = currTextItem; // preserve the first item
      


      currTextLine.Add(currTextItem);


      while(currTxtIdx<_text.Length)
      {

        // search for the first occurence of a backslash
        int bi = _text.IndexOfAny(searchchars,currTxtIdx);

        if(bi<0) // nothing was found
        {
          // move the rest of the text to the current item
          currTextItem.Text += _text.Substring(currTxtIdx,_text.Length-currTxtIdx);
          currTxtIdx = _text.Length;
        }
        else // something was found
        {
          // first finish the current item by moving the text from
          // currTxtIdx to (bi-1) to the current text item
          currTextItem.Text += _text.Substring(currTxtIdx,bi-currTxtIdx);
          
          if('\r'==_text[bi]) // carriage return character : simply ignore it
          {
            // simply ignore this character, since we search for \n
            currTxtIdx=bi+1;
          }
          else if('\n'==_text[bi]) // newline character : create a new line
          {
            currTxtIdx = bi+1;
            // create a new line
            currTextLine = new TextLine();
            _cachedTextLines.Add(currTextLine);
            // create also a new text item
            currTextItem = new TextItem(currTextItem,null);
            currTextLine.Add(currTextItem);
          }
          else if('\\'==_text[bi]) // backslash : look what comes after
          {
            if(bi+1<_text.Length && (')'==_text[bi+1] || '\\'==_text[bi+1])) // if a closing brace or a backslash, take these as chars
            {
              currTextItem.Text += _text[bi+1];
              currTxtIdx = bi+2;
            }
              // if the backslash not followed by a symbol and than a (, 
            else if(bi+3<_text.Length && !char.IsSeparator(_text,bi+1) && '('==_text[bi+2])
            {
              switch(_text[bi+1])
              {
                case 'b':
                case 'B':
                {
                  itemstack.Push(currTextItem);
                  currTextItem = new TextItem(currTextItem, new Font(currTextItem.Font.FontFamily,currTextItem.Font.Size,currTextItem.Font.Style | FontStyle.Bold, GraphicsUnit.World));
                  currTextLine.Add(currTextItem);
                  currTxtIdx = bi+3;
                }
//.........这里部分代码省略.........

        FormattedText GetFunctionIntelliSense(IntelliSenseFunctionInfo functionInfo, int currentArgIndex)
        {
            var nameLine = new TextLine { new TextRun { Text = functionInfo.FunctionName + "(" } };
            if (functionInfo.ArgumentList.Count > 0)
            {
                var argNames = functionInfo.ArgumentList.Take(currentArgIndex).Select(arg => arg.ArgumentName).ToArray();
                if (argNames.Length >= 1)
                {
                    nameLine.Add(new TextRun { Text = string.Join(", ", argNames) });
                }

                if (functionInfo.ArgumentList.Count > currentArgIndex)
                {
                    if (argNames.Length >= 1)
                    {
                        nameLine.Add(new TextRun
                        {
                            Text = ", "
                        });
                    }

                    nameLine.Add(new TextRun
                    {
                        Text = functionInfo.ArgumentList[currentArgIndex].ArgumentName,
                        Style = System.Drawing.FontStyle.Bold
                    });

                    argNames = functionInfo.ArgumentList.Skip(currentArgIndex + 1).Select(arg => arg.ArgumentName).ToArray();
                    if (argNames.Length >= 1)
                    {
                        nameLine.Add(new TextRun {Text = ", " + string.Join(", ", argNames)});
                    }
                }
            }
            nameLine.Add(new TextRun { Text = ")" });

            var descriptionLines = GetFunctionDescription(functionInfo);

            var formattedText = new FormattedText { nameLine, descriptionLines };
            if (functionInfo.ArgumentList.Count > currentArgIndex)
            {
                formattedText.Add(GetArgumentDescription(functionInfo.ArgumentList[currentArgIndex]));
            }

            return formattedText;
        }