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gdyrrahitis/DrawRectangleCommand.cs Secret

Created November 10, 2018 22:13
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DrawRectangleCommand.cs
// Setting each pixel that was drawn
// back to its previous color
public void Undo()
{
var points = 0;
for (int i = _point.X; i < _point.X + Width; i++)
{
for (int j = _point.Y; j < _point.Y + Height; j++)
{
_bitmap.SetPixel(i, j, _previousState[points++]);
}
}
}
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