/// <summary>
/// Draw a rectangle on the inky buffer
/// </summary>
/// <param name="inky">Inky driver</param>
/// <param name="x1">The x pixel position of one corner</param>
/// <param name="y1">The y pixel position of one corner</param>
/// <param name="x2">The x pixel position of the opposite corner</param>
/// <param name="y2">The y pixel position of the opposite corner</param>
/// <param name="borderColour">The border colour of the rectangle</param>
/// <param name="fillColour">The fill colour of the rectangle (optional)</param>
public static void DrawRectangle(this IInkyDriver inky, int x1, int y1, int x2, int y2, InkyPixelColour borderColour, InkyPixelColour?fillColour = null)
{
if (inky is null)
{
throw new ArgumentNullException(nameof(inky));
}
for (var i = Math.Min(x1, x2); i <= Math.Max(x1, x2); i++)
{
inky.SetPixel(i, y1, borderColour);
if (y1 != y2)
{
inky.SetPixel(i, y2, borderColour);
}
}
for (var i = Math.Min(y1, y2); i <= Math.Max(y1, y2); i++)
{
inky.SetPixel(x1, i, borderColour);
if (x1 != x2)
{
inky.SetPixel(x2, i, borderColour);
}
}
if (fillColour.HasValue && Math.Abs(x2 - x1) > 1 && Math.Abs(y2 - y1) > 1)
{
for (var i = Math.Min(x1, x2) + 1; i < Math.Max(x1, x2); i++)
{
for (var j = Math.Min(y1, y2) + 1; j < Math.Max(y1, y2); j++)
{
inky.SetPixel(i, j, fillColour.Value);
}
}
}
}
/// <summary>
/// Try set the inky buffer pixel, as long as it's within the bounds of the screen
/// </summary>
/// <param name="inky">Inky driver</param>
/// <param name="x">The x pixel position</param>
/// <param name="y">The y pixel position</param>
/// <param name="colour">The colour to set the pixel to</param>
/// <returns>True if the pixel coordinates were within the bounds of the screen</returns>
public static bool TrySetPixel(this IInkyDriver inky, int x, int y, InkyPixelColour colour)
{
if (inky is null)
{
throw new ArgumentNullException(nameof(inky));
}
if (x < 0 || y < 0 || x >= inky.Width || y >= inky.Height)
{
return(false);
}
inky.SetPixel(x, y, colour);
return(true);
}