How do I implement word wrap?

Question

XNA has Spritefont class, which has a MeasureString method, which can return the Width and Height of a string. I\'m trying to understand how to create a method

Answer 1

To handle a block of text with carriage returns you need to modify the code as below:

  public static string WrapText(SpriteFont font, string text, float maxLineWidth)
    {
        string[] words = text.Split(' ');
        StringBuilder sb = new StringBuilder();
        float lineWidth = 0f;
        float spaceWidth = font.MeasureString(" ").X;

        foreach (string word in words)
        {
            Vector2 size = font.MeasureString(word);

            if (word.Contains("\r"))
            {
                lineWidth = 0f;
                sb.Append("\r \r" );
            }

            if (lineWidth + size.X < maxLineWidth )
            {
                sb.Append(word + " ");
                lineWidth += size.X + spaceWidth;
            }

            else
            {
                if (size.X > maxLineWidth )
                {
                    if (sb.ToString() == " ")
                    {
                        sb.Append(WrapText(font, word.Insert(word.Length / 2, " ") + " ", maxLineWidth));
                    }
                    else
                    {
                        sb.Append("\n" + WrapText(font, word.Insert(word.Length / 2, " ") + " ", maxLineWidth));
                    }
                }
                else
                {
                    sb.Append("\n" + word + " ");
                    lineWidth = size.X + spaceWidth;
                }
            }
        }

        return sb.ToString();
    }