private void AdjustVisibility(bool diagramVisible, bool deferRebuildWatermark)
{
DiagramView diagramView = myDiagramView;
if (!diagramVisible)
{
Diagram diagram = diagramView.Diagram;
if (diagram != null)
{
myDisassociating = true;
try
{
MultiDiagramDocView.DeactivateMouseActions(diagramView);
diagram.Disassociate(diagramView);
}
finally
{
myDisassociating = false;
}
SetSelectedComponents(null);
}
if (!deferRebuildWatermark)
{
RebuildWatermark();
}
}
diagramView.Visible = diagramVisible;
myWatermarkLabel.Visible = !diagramVisible;
}
private void Disassociate()
{
DiagramView diagramView = myDiagramView;
Diagram diagram = diagramView.Diagram;
if (diagram != null)
{
myDisassociating = true;
try
{
MultiDiagramDocView.DeactivateMouseActions(diagramView);
diagram.Disassociate(diagramView);
}
finally
{
myDisassociating = false;
}
}
}
/// <summary>
/// Activate the specified <paramref name="diagram"/>
/// </summary>
/// <param name="diagram">The <see cref="Diagram"/> to activate</param>
/// <returns>true if the diagram is successfully activated</returns>
public bool ActivateDiagram(Diagram diagram)
{
if (diagram != null) // Sanity check
{
bool calledShow = false;
Store spyOnStore = myStore;
Store testStore = diagram.Store;
if (spyOnStore == null)
{
// Either the window has never been shown, or it is not currently
// active. Pre-check the store against the current selection to
// see if showing the window will actually initialize to the correct store.
IMonitorSelectionService selectionService;
ModelingDocData docData;
if (null != (selectionService = (IMonitorSelectionService)ExternalServiceProvider.GetService(typeof(IMonitorSelectionService))) &&
null != (docData = selectionService.CurrentDocument as ModelingDocData) &&
testStore == (spyOnStore = docData.Store))
{
calledShow = true;
Show();
spyOnStore = myStore; // Sanity check in case something went wrong
}
else
{
return(false);
}
}
if (testStore == spyOnStore)
{
DiagramView diagramView = myDiagramView;
Diagram oldDiagram = diagramView.Diagram;
bool reselectOldDiagram = false;
if (oldDiagram != null)
{
reselectOldDiagram = oldDiagram == diagram;
if (!reselectOldDiagram)
{
myDisassociating = true;
try
{
oldDiagram.Disassociate(diagramView);
}
finally
{
myDisassociating = false;
}
}
}
if (!reselectOldDiagram)
{
MultiDiagramDocView.DeactivateMouseActions(diagram.ActiveDiagramView);
diagram.Associate(diagramView);
}
AdjustVisibility(true, false);
if (!calledShow)
{
calledShow = true;
Show();
}
if (reselectOldDiagram && diagramView.Selection.PrimaryItem != null)
{
OnSelectionChanging(EventArgs.Empty);
OnSelectionChanged(EventArgs.Empty);
}
else
{
SetSelectedComponents(new object[] { diagram });
}
DiagramClientView clientView;
if (calledShow &&
!(clientView = diagramView.DiagramClientView).Focused)
{
clientView.Focus();
}
return(true);
}
}
return(false);
}
