public void HideElem(GraphicsObject hidElem)
{
curr = hidElem;
int idx = elems.FindIndex(new Predicate<GraphicsObject>(FindElem));
if (idx >= 0)
elems[idx].Hide(cellsize, bmp);
}
public void RemoveElem(GraphicsObject remElem)
{
curr = remElem;
int idx = elems.FindIndex(new Predicate<GraphicsObject>(FindElem));
if (idx >= 0)
{
elems[idx].Hide(cellsize, bmp);
elems.RemoveAt(idx);
}
}
public void AddElem(GraphicsObject newElem)
{
elems.Add(newElem);
}
private bool FindElem(GraphicsObject elem)
{
try
{
Point2f p = (Point2f)elem;
Point2f c = (Point2f)curr;
return p == c;
}
catch(Exception exLvl1)
{
try
{
Line p = (Line)elem;
Line c = (Line)curr;
return p == c;
}
catch(Exception exLvl2)
{
try
{
Set p = (Set)elem;
Set c = (Set)elem;
return p == c;
}
catch(Exception exLvl3)
{
return false;
}
}
}
}
