/// <summary>
/// Moves the connectors of the children to the central group connector location.
/// </summary>
internal void MoveConnectors(CollectionBase <IDiagramEntity> entities, Point point)
{
IConnection cnn;
foreach (IDiagramEntity entity in entities)
{
if (entity is IGroup)
{
continue; //since we use a flattened collection (the Leafs) we don't care about the groups here
//the inclusion of the subgroups in the Leafs is however important to make the subgroups
//(in)visible when collapsed/expanded.
}
if (entity is IShape)
{
foreach (IConnector cn in (entity as IShape).Connectors)
{
if (cn.AttachedConnectors.Count > 0)
{
foreach (IConnector cn2 in cn.AttachedConnectors)
{
if (cn2.Parent is IConnection)
{
cnn = cn2.Parent as IConnection;
//the ends have to be connected
if (cnn.From.AttachedTo.Parent is IShape && cnn.To.AttachedTo.Parent is IShape)
{
if (entities.Contains(cnn.From.AttachedTo.Parent as IShape) && entities.Contains(cnn.To.AttachedTo.Parent as IShape))
{
continue;//both endconnectors are internal
}
else//one of the connectors is external
{
if (entities.Contains(cnn.From.AttachedTo.Parent as IShape)) //the From is internal
{
MoveConnector(cnn.From, point);
}
else //the To is internal
{
MoveConnector(cnn.To, point);
}
}
}
}
}
}
}
}
}
}
/// <summary>
/// Attaches the given connector to this connector.
/// <remarks>The method will remove a previous binding, if any, before creating the attachment. This method prohibits mutliple identical connections;
/// you can attach a connector only once.
/// </remarks>
/// </summary>
/// <param name="connector"></param>
public void AttachConnector(IConnector connector)
{
if (connector == null || !Enabled)
{
return;
}
//only attach'm if not already present and not the parent
if (!attachedConnectors.Contains(connector) && connector != attachedTo)
{
connector.DetachFromParent();
attachedConnectors.Add(connector);
//make sure the attached connector is centered at this connector
connector.Point = this.mPoint;
connector.AttachedTo = this;
}
}
internal void SelectEntity(IDiagramEntity entity, Point surfacePoint)
{
// Groups are treated specially because we can drill-down
// into the group. The process of drilling is the first
// mouse hit will select the group. The second mouse hit
// will select a child, if there's a child at that point.
if (entity is IGroup)
{
if (entity.IsSelected == false)
{
entity.IsSelected = true;
mSelection.Add(entity);
}
else
{
IGroup group = entity as IGroup;
for (int j = group.Entities.Count - 1; j >= 0; j--)
{
IDiagramEntity child = group.Entities[j];
if (child.Hit(surfacePoint))
{
// Repeat the process because what if this
// child is too a group!
SelectEntity(child, surfacePoint);
group.IsSelected = false;
if (mSelection.Contains(group))
{
mSelection.Remove(group);
}
break;
}
}
}
}
//else if (entity.Group != null)
//{
// //entity.Group.IsSelected = true;
// //mSelection.Add(entity.Group);
//}
else
{
entity.IsSelected = true;
mSelection.Add(entity);
}
}
/// <summary>
/// Handles the OnEntityRemoved event of the DefaultPage.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="T:Netron.Diagramming.Core.EntityEventArgs"/> instance containing the event data.</param>
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);
}
/// <summary>
/// Handles the OnEntityRemoved event of the DefaultPage.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="T:Netron.Diagramming.Core.EntityEventArgs"/> instance containing the event data.</param>
void mDefaultPage_OnEntityRemoved(object sender, EntityEventArgs e)
{
//IShape sp = e.Entity as IShape;
//if(sp != null)
//{
// foreach(IConnector cr in sp.Connectors)
// mConnectorHolders.Remove(cr);
//}
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);
IConnection cn = e.Entity as IConnection;
if (cn != null)
{
mConnectorHolders.Remove(cn.From);
mConnectorHolders.Remove(cn.To);
}
}
/// <summary>
/// Collects the entities inside the given rectangle.
/// </summary>
/// <param name="surfaceRectangle">The surface rectangle.</param>
public static void CollectEntitiesInside(Rectangle surfaceRectangle)
{
if (surfaceRectangle == Rectangle.Empty)
{
return;
}
Selection.Clear();
foreach (IDiagramEntity entity in Selection.Controller.Model.Paintables)
{
//if the entity is part of a group we have to look at the bigger picture
if (mSelectionType == SelectionTypes.Inclusion)
{
if (entity.Group != null)
{
//the rectangle must contain the whole group
if (surfaceRectangle.Contains(entity.Group.Rectangle))
{
//add the group if not already present via another group member
if (!mSelection.Contains(entity.Group))
{
mSelection.Add(entity.Group);
}
continue;
}
}
else
{
if (surfaceRectangle.Contains(entity.Rectangle))
{
mSelection.Add(entity);
entity.IsSelected = true;
}
}
}
else //the selection requires only partial overlap with the rectangle
{
if (entity.Group != null)
{
if (surfaceRectangle.IntersectsWith(entity.Group.Rectangle))
{
if (!mSelection.Contains(entity.Group))
{
mSelection.Add(entity.Group);
}
continue;
}
}
else
{
if (surfaceRectangle.IntersectsWith(entity.Rectangle))
{
if (!mSelection.Contains(entity))//it could be a group which got already selected by one of its children
{
mSelection.Add(entity);
entity.IsSelected = true;
}
}
}
}
}
RaiseOnNewSelection();
}
