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root/public/ibx/trunk/ibcontrols/IBTreeView.pas
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Comparing ibx/trunk/ibcontrols/IBTreeView.pas (file contents):
Revision 26 by tony, Fri Mar 13 10:26:52 2015 UTC vs.
Revision 27 by tony, Tue Apr 14 13:10:23 2015 UTC

# Line 31 | Line 31 | interface
31  
32   uses
33    Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, ComCtrls,
34 <  DB, IBSQLParser;
34 >  DB, IBSQLParser, IBCustomDataSet;
35  
36   type
37    {
# Line 52 | Line 52 | type
52      FOwner: TIBTreeView;
53    protected
54      procedure ActiveChanged; override;
55 –    procedure DataEvent(Event: TDataEvent; Info: Ptrint); override;
55      procedure DataSetChanged; override;
56      procedure RecordChanged(Field: TField); override;
57      procedure UpdateData; override;
# Line 60 | Line 59 | type
59      constructor Create(AOwner: TIBTreeView);
60    end;
61  
62 +  { TIBTreeViewControlLink }
63 +
64 +  TIBTreeViewControlLink = class(TIBControlLink)
65 +  private
66 +    FOwner: TIBTreeView;
67 +  protected
68 +    procedure UpdateSQL(Sender: TObject); override;
69 +    procedure UpdateParams(Sender: TObject); override;
70 +  public
71 +    constructor Create(AOwner: TIBTreeView);
72 +  end;
73 +
74    { TIBTreeNode }
75  
76    TIBTreeNode = class(TTreeNode)
# Line 74 | Line 85 | type
85    private
86      { Private declarations }
87      FDataLink: TIBTreeViewDatalink;
88 +    FIBTreeViewControlLink: TIBTreeViewControlLink;
89      FHasChildField: string;
90      FKeyField: string;
91      FTextField: string;
# Line 93 | Line 105 | type
105      function GetDataSource: TDataSource;
106      function GetRelationNameQualifier: string;
107      function GetSelectedKeyValue: variant;
108 +    procedure IBControlLinkChanged;
109      procedure NodeMoved(Node: TTreeNode);
110      procedure NodeUpdated(Node: TTreeNode);
111      procedure RecordChanged(Sender: TObject; Field: TField);
# Line 232 | Line 245 | type
245  
246   implementation
247  
248 < uses IBQuery,IBCustomDataSet, Variants;
248 > uses IBQuery,Variants;
249  
250   function StrIntListToVar(s: string): TVariantArray;
251   var i, idx: integer;
# Line 268 | Line 281 | begin
281          raise Exception.Create('Ordinal Type Expected when converting to integer string');
282   end;
283  
284 + { TIBTreeViewControlLink }
285 +
286 + constructor TIBTreeViewControlLink.Create(AOwner: TIBTreeView);
287 + begin
288 +  inherited Create;
289 +  FOwner := AOwner;
290 + end;
291 +
292 + procedure TIBTreeViewControlLink.UpdateParams(Sender: TObject);
293 + begin
294 +  FOwner.UpdateParams(self,TIBParserDataSet(Sender).Parser)
295 + end;
296 +
297 + procedure TIBTreeViewControlLink.UpdateSQL(Sender: TObject);
298 + begin
299 +  FOwner.UpdateSQL(self,TIBParserDataSet(Sender).Parser)
300 + end;
301 +
302   { TIBTreeNode }
303  
304   procedure TIBTreeNode.DeleteAll;
# Line 290 | Line 321 | procedure TIBTreeView.ActiveChanged(Send
321   var AtTopLevel: boolean;
322   begin
323    if (csDesigning in ComponentState) then Exit;
324 +  IBControlLinkChanged;
325    if assigned(DataSet) and not DataSet.Active then
326    begin
327      if not assigned(FExpandNode) and not assigned(FUpdateNode) then {must really be closing}
# Line 391 | Line 423 | procedure TIBTreeView.RecordChanged(Send
423   var Node: TIBTreeNode;
424      Destination: TIBTreeNode;
425   begin
426 +  if DataSet.State = dsInsert then Exit;
427 +
428    if assigned(Field) and (Field.FieldName = TextField) then
429    begin
430      Node := FindNode(DataSet.FieldByName(KeyField).AsVariant);
# Line 450 | Line 484 | end;
484  
485   procedure TIBTreeView.SetDataSource(AValue: TDataSource);
486   begin
487 <  FDataLink.DataSource := AValue
487 >  FDataLink.DataSource := AValue;
488 >  IBControlLinkChanged;
489   end;
490  
491   procedure TIBTreeView.SetParentField(AValue: string);
# Line 496 | Line 531 | procedure TIBTreeView.UpdateParams(Sende
531   begin
532    if not assigned(FExpandNode) and assigned(FUpdateNode)  then {Scrolling dataset}
533     begin
534 <     if (Sender as TDataLink).DataSet is TIBQuery then
535 <       TIBQuery((Sender as TDataLink).DataSet).ParamByName('IBX_KEY_VALUE').Value :=
534 >     if DataSource.DataSet is TIBQuery then
535 >       TIBQuery(DataSource.DataSet).ParamByName('IBX_KEY_VALUE').Value :=
536           FUpdateNode.KeyValue
537       else
538 <     if (Sender as TDataLink).DataSet is TIBDataSet then
539 <       TIBDataSet((Sender as TDataLink).DataSet).ParamByName('IBX_KEY_VALUE').Value :=
538 >     if DataSource.DataSet is TIBDataSet then
539 >       TIBDataSet(DataSource.DataSet).ParamByName('IBX_KEY_VALUE').Value :=
540           FUpdateNode.KeyValue
541     end
542    else
543    if assigned(FExpandNode) then
544    begin
545 <    if (Sender as TDataLink).DataSet is TIBQuery then
546 <      TIBQuery((Sender as TDataLink).DataSet).ParamByName('IBX_PARENT_VALUE').Value :=
545 >    if DataSource.DataSet is TIBQuery then
546 >      TIBQuery(DataSource.DataSet).ParamByName('IBX_PARENT_VALUE').Value :=
547          TIBTreeNode(FExpandNode).KeyValue
548      else
549 <    if (Sender as TDataLink).DataSet is TIBDataSet then
550 <      TIBDataSet((Sender as TDataLink).DataSet).ParamByName('IBX_PARENT_VALUE').Value :=
549 >    if DataSource.DataSet is TIBDataSet then
550 >      TIBDataSet(DataSource.DataSet).ParamByName('IBX_PARENT_VALUE').Value :=
551          TIBTreeNode(FExpandNode).KeyValue
552    end;
553   end;
# Line 594 | Line 629 | begin
629    end;
630   end;
631  
632 + procedure TIBTreeView.IBControlLinkChanged;
633 + begin
634 +  if assigned(DataSource) and (DataSource.DataSet <> nil) and (DataSource.DataSet is TIBParserDataset) then
635 +    FIBTreeViewControllink.IBDataSet := TIBCustomDataSet(DataSource.DataSet)
636 +  else
637 +    FIBTreeViewControllink.IBDataSet := nil;
638 + end;
639 +
640   procedure TIBTreeView.Loaded;
641   begin
642    inherited Loaded;
# Line 618 | Line 661 | procedure TIBTreeView.Notification(AComp
661   begin
662    inherited Notification(AComponent, Operation);
663    if (Operation = opRemove) and
664 <     (FDataLink <> nil) and (AComponent = DataSource) then DataSource := nil;
664 >     (FDataLink <> nil) and (AComponent = DataSource) then
665 >     DataSource := nil;
666   end;
667  
668   procedure TIBTreeView.Reinitialise;
# Line 632 | Line 676 | constructor TIBTreeView.Create(TheCompon
676   begin
677    inherited Create(TheComponent);
678    FDataLink := TIBTreeViewDatalink.Create(self);
679 +  FIBTreeViewControlLink := TIBTreeViewControlLink.Create(self);
680   end;
681  
682   destructor TIBTreeView.Destroy;
683   begin
684    if assigned(FDataLink) then FDataLink.Free;
685 +  if assigned(FIBTreeViewControlLink) then FIBTreeViewControlLink.Free;
686    inherited Destroy;
687   end;
688  
# Line 733 | Line 779 | begin
779    FOwner.ActiveChanged(self)
780   end;
781  
736 – procedure TIBTreeViewDatalink.DataEvent(Event: TDataEvent; Info: Ptrint);
737 – begin
738 –  if (Event = deCheckBrowseMode) and (Info = 1) and not DataSet.Active then
739 –  begin
740 –    if (DataSet is TIBDataSet) then
741 –      FOwner.UpdateSQL(self,TIBDataSet(DataSet).Parser)
742 –    else
743 –    if (DataSet is TIBQuery) then
744 –      FOwner.UpdateSQL(self,TIBQuery(DataSet).Parser)
745 –  end
746 –  else
747 –  if (Event = deCheckBrowseMode) and (Info = 2) and not DataSet.Active then
748 –  begin
749 –    if (DataSet is TIBDataSet) then
750 –      FOwner.UpdateParams(self,TIBDataSet(DataSet).Parser)
751 –    else
752 –    if (DataSet is TIBQuery) then
753 –      FOwner.UpdateParams(self,TIBQuery(DataSet).Parser)
754 –  end
755 –  else
756 –    inherited DataEvent(Event, Info);
757 – end;
758 –
782   procedure TIBTreeViewDatalink.DataSetChanged;
783   begin
784    FOwner.DataSetChanged(self)

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