public static LinearBitmap operator +(LinearBitmap b, LinearBitmap c)
{
int width = b.Width + c.Width;
LinearBitmap result = new LinearBitmap(width);
foreach (var item in b.LinearBrushs)
{
result.LinearBrushs.Add(item);
}
foreach (var item in c.LinearBrushs)
{
LinearBrush linearBrush = item.Clone();
linearBrush.Start = linearBrush.Start + b.Width;
linearBrush.End = linearBrush.End + b.Width;
result.LinearBrushs.Add(linearBrush);
}
result.Draw();
return(result);
}
public static LinearBitmap operator -(LinearBitmap b, LinearBitmap c)
{
int width = b.Width - c.Width;
LinearBitmap result = new LinearBitmap(width);
var collection = b.LinearBrushs.Take(b.LinearBrushs.Count - c.LinearBrushs.Count);
foreach (var item in collection)
{
result.LinearBrushs.Add(item);
}
result.Draw();
return(result);
}
public LinearBitmap RemoveLast()
{
var last = this.LinearBrushs.LastOrDefault();
if (last == null || this.LinearBrushs.Count == 1)
{
return(null);
}
int width = this.Width - last.End + last.Start;
LinearBitmap result = new LinearBitmap(width);
var collection = this.LinearBrushs.Take(this.LinearBrushs.Count - 1);
foreach (var item in collection)
{
result.LinearBrushs.Add(item);
}
result.Draw();
return(result);
}
