public void Draw()
{
InstantiateFields();
_graphicalObject.Draw();
// garbage collect heavy object
_graphicalObject = null;
}
private void InstantiateFields()
{
if (_graphicalObject is null)
{
Console.WriteLine("Graphical object is instantiated.");
_graphicalObject = new GraphicalObject(_imageFilePath);
_width = _graphicalObject.ImageWidth();
_height = _graphicalObject.ImageHeight();
}
}
public int ImageWidth()
{
if (_width is null)
{
InstantiateFields();
}
// garbage collect heavy object
_graphicalObject = null;
return(_width.Value);
}
public int ImageHeight()
{
if (_height is null)
{
InstantiateFields();
}
// garbage collect heavy object
_graphicalObject = null;
return(_height.Value);
}