1 private const int maximumSingleLineTooltipLength = 120;
2
3 private static string AddNewLinesForTooltip(string text)
4 {
5 if (text.Length < maximumSingleLineTooltipLength)
6 return text;
7
8 StringBuilder sb = new StringBuilder();
9
10 int currentLinePosition = 0;
11 for (int textIndex = 0; textIndex < text.Length; textIndex++)
12 {
13 sb.Append(text[textIndex]);
14
15 // if reach the original new line in the text
16 // just recount
17 if (text[textIndex].Equals(Environment.NewLine)
18 || (text[textIndex].Equals('\n') && textIndex >= 1 && text[textIndex - 1].Equals('\r')))
19 {
20 currentLinePosition = 0;
21 continue;
22 }
23
24 // If we have reached the target line length
25 // and the nextcharacter is whitespace
26 // and don't break \r\n
27 // then begin a new line.
28 if (currentLinePosition >= maximumSingleLineTooltipLength
29 && char.IsWhiteSpace(text[textIndex])
30 && !(text[textIndex].Equals('\r') && textIndex < text.Length && text[textIndex + 1].Equals('\n')))
31 {
32 sb.Append(Environment.NewLine);
33 currentLinePosition = 0;
34 continue;
35 }
36
37 // Append the next character.
38 if (textIndex < text.Length)
39 {
40 currentLinePosition++;
41 }
42 }
43
44 return sb.ToString();
45 }
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