private static FigletLayout NextLayout(FigletLayout layout)
{
return(layout switch
{
FigletLayout.Smush => FigletLayout.Kerning,
FigletLayout.Kerning => FigletLayout.FullWidth,
FigletLayout.FullWidth => FigletLayout.Smush,
_ => layout
});
/// <summary>
/// Renders an ASCII art from a multi-line text.
/// The number of lines is equal to the <see cref="linesRendered"/> times the <see cref="FigletFont.Height"/> property of the <see cref="font"/>.
/// </summary>
/// <param name="text">The text to render.</param>
/// <param name="font">The <see cref="FigletFont"/> to render.</param>
/// <param name="layout">The <see cref="FigletLayout"/> to render.</param>
/// <param name="linesRendered">How many lines were rendered.</param>
/// <returns>The multi-line string with rendered ASCII art.</returns>
public static string RenderAsciiArt(string text, FigletFont font, FigletLayout layout, out int linesRendered)
{
var lines = text.Split(Separators, StringSplitOptions.None);
linesRendered = lines.Length;
if (linesRendered < 2)
{
return(RenderAsciiArtLine(text, font, layout));
}
var stringBuilder = new StringBuilder();
foreach (var line in lines)
{
stringBuilder.Append(RenderAsciiArtLine(line, font, layout));
}
return(stringBuilder.ToString());
}
/// <summary>
/// Renders an ASCII art from a single-line text.
/// The number of rendered lines is equal to the <see cref="FigletFont.Height"/> property of the <see cref="font"/>.
/// </summary>
/// <param name="text">The text to render.</param>
/// <param name="font">The <see cref="FigletFont"/> to render.</param>
/// <param name="layout">The <see cref="FigletLayout"/> to render.</param>
/// <returns>The multi-line string with rendered ASCII art.</returns>
// ReSharper disable once MemberCanBePrivate.Global
public static string RenderAsciiArtLine(string text, FigletFont font, FigletLayout layout)
{
var height = font.Height;
var stringBuilder = new StringBuilder();
if (text.Length == 0)
{
while (height-- > 0)
{
stringBuilder.AppendLine(String.Empty);
}
return(stringBuilder.ToString());
}
if (Encoding.UTF8.GetByteCount(text) != text.Length)
{
throw new ArgumentException($"Text to render [{text}] contains non-ascii characters", nameof(text));
}
if (text.Contains(Environment.NewLine))
{
throw new ArgumentException("Text to render cannot contain multiple lines.", nameof(text));
}
var result = new string[height];
switch (layout)
{
case FigletLayout.FullWidth:
for (int currentLine = 0; currentLine < height; ++currentLine)
{
stringBuilder.Clear();
foreach (char currentChar in text)
{
stringBuilder.Append(font.GetCharacter(currentChar, currentLine));
stringBuilder.Append(' ');
}
result[currentLine] = stringBuilder.ToString();
}
break;
case FigletLayout.Kerning:
for (int currentLine = 0; currentLine < height; ++currentLine)
{
stringBuilder.Clear();
foreach (char currentChar in text)
{
stringBuilder.Append(font.GetCharacter(currentChar, currentLine));
}
result[currentLine] = stringBuilder.ToString();
}
break;
case FigletLayout.Smush:
for (int currentLine = 0; currentLine < height; currentLine++)
{
stringBuilder.Clear();
stringBuilder.Append(font.GetCharacter(text[0], currentLine));
char lastChar = text[0];
var length = text.Length;
for (int currentCharIndex = 1; currentCharIndex < length; currentCharIndex++)
{
char currentChar = text[currentCharIndex];
string currentCharacterLine = font.GetCharacter(currentChar, currentLine);
if (lastChar != ' ' && currentChar != ' ' && currentCharacterLine.Length > 0)
{
if (stringBuilder[^ 1] == ' ')