public void PreSelect(PtSelectContext sltCtx)
{
#if DEBUG// Test Performance
DateTime StartTime = DateTime.Now;
Console.WriteLine("Start time -" + StartTime.ToString());
#endif// End Test
PtApp.ActiveView.Select(sltCtx);
#if DEBUG// Test Performance
DateTime EndTime = DateTime.Now;
Console.WriteLine("End time -" + EndTime.ToString());
TimeSpan Span = EndTime - StartTime;
Console.WriteLine("Use time -" + Span.ToString());
#endif // End Test
FRList<Selection> Selections =
sltCtx.CurrentSelectionSet.Selections;
if (!Selections.Empty())
{
//PtApp.ActiveView.UpdateView();
Debug.WriteLine("Preselect successfully.");
}
}
public void CreateSelection(PtSelectContext SltCtx, DisplayItem SelectedItem)
{
Debug.Assert(SltCtx != null && SelectedItem != null);
if (SltCtx.CurrentSelectionSet != null && SelectedItem != null)
{
m_SelectTolerance = SltCtx.SelectTolerance;
Selection Slt = GetSelection();
Slt.SetManipulator(GetManipulator(SelectedItem));
SltCtx.CurrentSelectionSet.AddSelection(Slt);
}
}
public static SnapContext InitalizeSnapContextFromPreSelection(GePoint mousePoint)
{
Debug.Assert(mousePoint != null);
SnapContext snapCtx = new SnapContext(PtApp.ActiveDocument.Database);
PtSelectContext sltCtx = new PtSelectContext();
sltCtx.WorldPoint = mousePoint;
SelectionSet tempSet =
PtApp.ActiveView.SelectionMgr.CreateSelectionSet("SnapTemporarySet");
tempSet.Clear();
sltCtx.CurrentSelectionSet = tempSet;
PtApp.ActiveView.Select(sltCtx);
// Set selection set.
SelectionSet PreSet = PtApp.ActiveView.SelectionMgr.GetPreviewSelectionSet();
PreSet.Clear();
if (!tempSet.Empty())
{
foreach (Selection selection in tempSet.Selections)
{
SymbolConstraint instance = selection.GetInstance();
Debug.Assert(instance != null);
SymbolGeometryConstraint constr = instance.GetGeometryConstraint(
mousePoint, snapCtx.SnapTolerance);
if (constr != null)
{
// We just highlight the snapped nodes.
snapCtx.CandidateProxies.Add(constr);
PreSet.AddSelection(selection);
}
}
}
PtApp.ActiveView.UpdateView();
return snapCtx;
}
public void Select(PtSelectContext sltCtx)
{
PtDocument doc = PtApp.GetActiveDocument();
FRList<GraphicNode> NodeList = doc.GetGraphicNodes();
// Find
foreach (GraphicNode NodeItem in NodeList)
{
sltCtx.ResetSelectionFlag();
NodeItem.Qualify(sltCtx);
if (!sltCtx.CurrentSelectionSet.Empty() && !sltCtx.MultiSelect)
break;
}
}
// For selecting
public void Qualify(PtSelectContext selectCtx)
{
Debug.Assert(selectCtx != null);
if (null == selectCtx) return;
if (!m_CanBeSelected) return;
SelectionCreator Creator = GetCreator();
if (null == Creator) return;
if (m_ItemList != null)
{
m_ItemList.Qualify(selectCtx, null);
//SelectionCreator Creator = selectCtx.Creator;
if (selectCtx.IsHitted && selectCtx.CurrentSelectionSet != null)
{
Creator.CreateSelection(selectCtx, selectCtx.GetHittedItem());
}
}
}
protected override EventResult OnMouseMove(EventContext Context)
{
// Drag and translation the view.
if(true == m_IsMiddleButtonDown)
{
PtApp.GetActiveView().GetTranslationManipulator().Drag(Context);
SetCursorShape(PtApp.GetActiveView().GetTranslationManipulator().GetCursorShape());
return EventResult.eContinue;
}
if (true == m_bIsDragging)
{
SelectionSet SelectedSet = PtApp.ActiveView.SelectionMgr.GetSelectedSelectionSet();
// We just support drag a selection
FRList<Selection> Selections = SelectedSet.Selections;
if (Selections.Count == 1)
{
if (Selections[0].GetManipulator() != null)
{
Selections[0].GetManipulator().Drag(Context);
SetCursorShape(Selections[0].GetManipulator().GetCursorShape());
}
}
}
else
{
// We do preselect when the mouse move but not drag.
PtApp.GetActiveView().UpdateView();
GePoint mousPoint = Context.MouseWorldPoint;
PtSelectContext sltCtx = new PtSelectContext();
sltCtx.WorldPoint = mousPoint;
// Set selection set.
SelectionSet PreSet = PtApp.ActiveView.SelectionMgr.GetPreviewSelectionSet();
PreSet.Clear();
sltCtx.CurrentSelectionSet = PreSet;
PreSelect(sltCtx);
//bool bAfterSelect = PreSet.Empty();
//// We just update the preview when need.
//if (!bAfterSelect)
// PtApp.ActiveView.UpdateView();
// We just support drag a selection
FRList<Selection> Selections = PreSet.Selections;
if (Selections.Count == 1)
{
if (Selections[0].GetManipulator() != null)
{
SetCursorShape(Selections[0].GetManipulator().GetCursorShape());
}
else
{
SetCursorShape("SelectArrow.cur");
}
}
else
{
SetCursorShape("SelectArrow.cur");
}
}
return EventResult.eContinue;
}
