/// <summary>
/// Draw the text onto a new bitmap at the specified point, with the specified font and text colours
/// </summary>
/// <param name="text">The text to be drawn</param>
/// <param name="font">The font to use</param>
/// <param name="textColor">The colour of the text</param>
/// <param name="backgroundColor">The colour of the background</param>
/// <param name="offset">The amount by which to offset the text</param>
/// <returns>A new bitmap containing the text</returns>
public static Bitmap Convert(string text, Font font, Color textColor, Color backgroundColor, Point offset)
{
Size size = FontFunctions.MeasureText(text, font);
Bitmap result = new Bitmap(size.Width, size.Height);
using (Graphics g = Graphics.FromImage(result))
{
g.Clear(backgroundColor);
TextRenderer.DrawText(
g,
text,
font,
offset,
textColor,
backgroundColor,
TextFormatFlags.NoPadding | TextFormatFlags.NoPrefix);
}
return(result);
}
/// <summary>
/// Draw the text onto a new bitmap with the specified font and colours
/// </summary>
/// <param name="text">The text to be drawn</param>
/// <param name="font">Font to use</param>
/// <param name="textColors">2d array of colours to use (must have one for each character)</param>
/// <param name="backgroundColor">Color to use behind the text</param>
/// <param name="scale">Percentage scale of the image, 1.0-100.0</param>
/// <returns>Image containing the coloured text</returns>
public static Image Convert(string[] text, Font font, Color[][] textColors, Color backgroundColor, float scale)
{
if (!FontFunctions.IsFixedWidth(font) || text == null || textColors == null)
{
return(null);
}
// size the output image must be to fit the text
Size size = FontFunctions.MeasureText(FontFunctions.StringArrayToString(text), font);
// size of one character in the font
Size characterSize = FontFunctions.GetFixedPitchFontSize(font);
Bitmap fullSize = new Bitmap(size.Width, size.Height);
using (Graphics g = Graphics.FromImage(fullSize))
{
g.Clear(backgroundColor);
int width = textColors[0].Length;
int height = textColors.Length;
for (int y = 0; y < height; y++)
{
string line = text[y];
for (int x = 0; x < width; x++)
{
if (textColors[y][x] == backgroundColor)
{
continue;
}
Point offset = new Point(x * characterSize.Width, y * characterSize.Height);
using (SolidBrush brush = new SolidBrush(textColors[y][x]))
{
g.DrawString(
line[x].ToString(),
font,
brush,
offset,
StringFormat.GenericTypographic);
}
}
}
}
if (scale == 100f)
{
return(fullSize);
}
float magnification = scale / 100f;
Size newSize = new Size(
(int)((fullSize.Width * magnification) + 0.5),
(int)((fullSize.Height * magnification) + 0.5));
newSize.Width = Math.Max(newSize.Width, 1);
newSize.Height = Math.Max(newSize.Height, 1);
Bitmap resized = new Bitmap(newSize.Width, newSize.Height);
using (Graphics g = Graphics.FromImage(resized))
{
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.DrawImage(fullSize, new Rectangle(0, 0, newSize.Width, newSize.Height));
}
fullSize.Dispose();
return(resized);
}
