protected virtual void RaiseOnEntityRemoved(EntityEventArgs e)
{
EventHandler <EntityEventArgs> handler = OnEntityRemoved;
if (handler != null)
{
handler(this, e);
}
}
void mDefaultPage_OnEntityAdded(object sender, EntityEventArgs e)
{
//don't add it if it's already there or if it's a group (unless you want to deploy something special to emphasize a group shape).
if (!mPaintables.Contains(e.Entity) && !(e.Entity is IGroup))
{
//set the new entity on top of the stack
e.Entity.SceneIndex = mPaintables.Count;
mPaintables.Add(e.Entity);
}
RaiseOnEntityAdded(e);
}
void mDefaultPage_OnEntityRemoved(object sender, EntityEventArgs e)
{
if (mPaintables.Contains(e.Entity))
{
//shift the entities above the one to be removed
int index = e.Entity.SceneIndex;
foreach (IDiagramEntity entity in mPaintables)
{
if (entity.SceneIndex > index)
{
entity.SceneIndex--;
}
}
mPaintables.Remove(e.Entity);
}
//if the selection contains the shape we have to remove it from the selection
if (Selection.SelectedItems.Contains(e.Entity))
{
Selection.SelectedItems.Remove(e.Entity);
}
RaiseOnEntityRemoved(e);
}
void mModel_OnEntityAdded(object sender, EntityEventArgs e)
{
RaiseOnEntityAdded(e);
}
