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Comparing ibx/trunk/ibcontrols/IBDynamicGrid.pas (file contents):
Revision 23 by tony, Fri Mar 13 10:26:52 2015 UTC vs.
Revision 315 by tony, Thu Feb 25 11:56:36 2021 UTC

#	Line 23 | Line 23
23		*  Contributor(s): ______________________________________.
24		*
25		*)
26	+
27		unit IBDynamicGrid;
28
29		{$mode objfpc}{$H+}
#	Line 31 | Line 32 | interface
32
33		uses
34		Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, DBGrids, DB,
35	<	IBSqlParser, Grids, IBLookupComboEditBox, LMessages, StdCtrls, ExtCtrls;
35	>	IBSQLParser, Grids, IBLookupComboEditBox, LMessages, StdCtrls, ExtCtrls,
36	>	IBCustomDataSet;
37
38		type
39		{
#	Line 39 | Line 41 | type
41		- automatic resizing of selected columns to fill the available row length
42		- automatic positioning and sizing of a "totals" control, typically at the
43		column footer, on a per column basis.
44	<	- DataSet resorting on header row click, sorting the dataset by the selected column.
44	>	- DataSet re-sorting on header row click, sorting the dataset by the selected column.
45		A second click on the same header cell reversed the sort order.
46		- Reselection of the same row following resorting.
47		- A new cell editor that provides the same functionality as TIBLookupComboEditBox.
#	Line 55 | Line 57 | type
57		TOnUpdateSortOrder = procedure (Sender: TObject; ColIndex: integer; var OrderBy: string) of Object;
58		TKeyDownHandler = procedure (Sender: TObject; var Key: Word;  Shift: TShiftState; var Done: boolean) of object;
59
58	–	{ TDynamicGridDataLink }
59	–
60	–	TDynamicGridDataLink = class(TDataLink)
61	–	private
62	–	FOwner: TIBDynamicGrid;
63	–	protected
64	–	procedure DataEvent(Event: TDataEvent; Info: Ptrint); override;
65	–	procedure DataSetScrolled(Distance: Integer); override;
66	–	public
67	–	constructor Create(AOwner: TIBDynamicGrid);
68	–	end;
69	–
60		{ TDBDynamicGridColumn }
61
62		TDBDynamicGridColumn = class(TColumn)
#	Line 102 | Line 92 | type
92		FListSource: TDataSource;
93		FOnAutoInsert: TAutoInsert;
94		FOnCanAutoInsert: TCanAutoInsert;
95	+	FOnCloseUp: TNotifyEvent;
96		FOnDrawItem: TDrawItemEvent;
97		FOwner: TIBDynamicGridColumn;
98		FRelationName: string;
#	Line 128 | Line 119 | type
119		property Style: TComboBoxStyle read FStyle write FStyle default csDropDown;
120		property OnAutoInsert: TAutoInsert read FOnAutoInsert write FOnAutoInsert;
121		property OnCanAutoInsert: TCanAutoInsert read FOnCanAutoInsert write FOnCanAutoInsert;
122	+	property OnCloseUp: TNotifyEvent read FOnCloseUp write FOnCloseUp;
123		property OnDrawItem: TDrawItemEvent read FOnDrawItem write FOnDrawItem;
124		end;
125
#	Line 158 | Line 150 | end;
150		FGrid: TCustomGrid;
151		FCol,FRow: Integer;
152		FEditText: string;
153	+	function EditingKeyField: boolean;
154		protected
155		procedure WndProc(var TheMessage : TLMessage); override;
156		procedure CloseUp; override;
157		procedure KeyDown(var Key : Word; Shift : TShiftState); override;
158	+	procedure Loaded; override;
159		procedure msg_GetValue(var Msg: TGridMessage); message GM_GETVALUE;
160		procedure msg_SetGrid(var Msg: TGridMessage); message GM_SETGRID;
161		procedure msg_SetValue(var Msg: TGridMessage); message GM_SETVALUE;
#	Line 173 | Line 167 | end;
167		property OnEditingDone;
168		end;
169
170	+	TOnSelectPanelEditor = procedure(Sender: TObject; var aEditorPanel: TWinControl) of object;
171	+
172		TDBDynamicGrid = class(TDBGrid)
173		private
174		{ Private declarations }
#	Line 183 | Line 179 | end;
179		FOnEditorPanelHide: TNotifyEvent;
180		FOnEditorPanelShow: TNotifyEvent;
181		FOnKeyDownHander: TKeyDownHandler;
182	+	FOnSelectPanelEditor: TOnSelectPanelEditor;
183		FResizing: boolean;
184		FWeHaveFocus: boolean;
185	<	FHidingEditorPanel: boolean;
186	<	FAllowHide: boolean;
185	>	FMouseDown: boolean;
186	>	function ActiveControl: TControl;
187		procedure DoShowEditorPanel(Data: PtrInt);
188		procedure PositionTotals;
189		procedure KeyDownHandler(Sender: TObject; var Key: Word; Shift: TShiftState);
190	+	procedure PerformEditorHide(Data: PtrInt);
191		procedure SetEditorPanel(AValue: TWinControl);
192		protected
193		procedure ChangeBounds(ALeft, ATop, AWidth, AHeight: integer; KeepBase: boolean); override;
#	Line 219 | Line 217 | end;
217		constructor Create(TheComponent: TComponent); override;
218		destructor Destroy ;override;
219		procedure ResizeColumns;
220	+	property VisibleRowCount;
221		published
222		property EditorPanel: TWinControl read FEditorPanel write SetEditorPanel;
223		property ExpandEditorPanelBelowRow: boolean read FExpandEditorPanelBelowRow write FExpandEditorPanelBelowRow;
#	Line 226 | Line 225 | end;
225		property OnEditorPanelShow: TNotifyEvent read FOnEditorPanelShow write FOnEditorPanelShow;
226		property OnEditorPanelHide: TNotifyEvent read FOnEditorPanelHide write FOnEditorPanelHide;
227		property OnKeyDownHander: TKeyDownHandler read FOnKeyDownHander write FOnKeyDownHander;
228	+	property OnSelectPanelEditor: TOnSelectPanelEditor read FOnSelectPanelEditor
229	+	write FOnSelectPanelEditor;
230		end;
231
232	+	{TIBGridControlLink}
233	+
234	+	TIBGridControlLink = class(TIBControlLink)
235	+	private
236	+	FOwner: TIBDynamicGrid;
237	+	protected
238	+	procedure UpdateSQL(Sender: TObject); override;
239	+	public
240	+	constructor Create(AOwner: TIBDynamicGrid);
241	+	end;
242	+
243	+	TLocationArray = array of variant;
244	+	PLocationArray = ^TLocationArray;
245	+	TOnRestorePosition = procedure(Sender: TObject; Location: PLocationArray) of object;
246	+
247		{ TIBDynamicGrid }
248
249		TIBDynamicGrid = class(TDBDynamicGrid)
250		private
251		{ Private declarations }
252		FAllowColumnSort: boolean;
253	<	FDataLink: TDynamicGridDataLink;
253	>	FIBControlLink: TIBGridControlLink;
254		FOnColumnHeaderClick: TOnColumnHeaderClick;
255	+	FOnRestorePosition: TOnRestorePosition;
256		FOnUpdateSortOrder: TOnUpdateSortOrder;
257		FDefaultPositionAtEnd: boolean;
258		FDescending: boolean;
#	Line 243 | Line 260 | end;
260		FLastColIndex: integer;
261		FIndexFieldNames: string;
262		FIndexFieldsList: TStringList;
263	<	FBookmark: array of variant;
263	>	FBookmark: TLocationArray;
264		FDBLookupCellEditor: TDBLookupCellEditor;
265		FActive: boolean;
266	+	FFieldPosition: integer;
267		procedure ColumnHeaderClick(Index: integer);
268		function GetDataSource: TDataSource;
269		function GetEditorBorderStyle: TBorderStyle;
270	+	procedure IBControlLinkChanged;
271		procedure SetDataSource(AValue: TDataSource);
272		procedure SetEditorBorderStyle(AValue: TBorderStyle);
273		procedure ProcessColumns;
274		procedure SetIndexFieldNames(AValue: string);
275		procedure UpdateSQL(Sender: TObject; Parser: TSelectSQLParser);
276		procedure UpdateSortColumn(Sender: TObject);
277	<	procedure DataSetScrolled(Sender: TObject);
278	<	procedure RestorePosition(Data: PtrInt);
277	>	procedure RestorePosition;
278	>	procedure SavePosition;
279		procedure DoReOpen(Data: PtrInt);
280		procedure SetupEditor(aEditor: TDBLookupCellEditor; aCol: integer);
281		protected
#	Line 266 | Line 285 | end;
285		function  CreateColumns: TGridColumns; override;
286		procedure MouseDown(Button: TMouseButton; Shift:TShiftState; X,Y:Integer); override;
287		procedure LinkActive(Value: Boolean); override;
288	+	procedure MoveSelection; override;
289		procedure Notification(AComponent: TComponent; Operation: TOperation); override;
290		procedure UpdateActive; override;
291		public
#	Line 283 | Line 303 | end;
303		property DefaultPositionAtEnd: boolean read  FDefaultPositionAtEnd write FDefaultPositionAtEnd;
304		property IndexFieldNames: string read FIndexFieldNames write SetIndexFieldNames;
305		property OnColumnHeaderClick: TOnColumnHeaderClick read FOnColumnHeaderClick write FOnColumnHeaderClick;
306	+	property OnRestorePosition: TOnRestorePosition read FOnRestorePosition write FOnRestorePosition;
307		property OnUpdateSortOrder: TOnUpdateSortOrder read FOnUpdateSortOrder write FOnUpdateSortOrder;
308		end;
309
310		implementation
311
312	<	uses Math, IBQuery, IBCustomDataSet, LCLType;
312	>	uses LCLType, Variants, EditBtn;
313	>
314	>	{ TIBGridControlLink }
315	>
316	>	constructor TIBGridControlLink.Create(AOwner: TIBDynamicGrid);
317	>	begin
318	>	inherited Create;
319	>	FOwner := AOwner;
320	>	end;
321	>
322	>	procedure TIBGridControlLink.UpdateSQL(Sender: TObject);
323	>	begin
324	>	FOwner.UpdateSQL(self,TIBParserDataSet(Sender).Parser)
325	>	end;
326
327		{ TDBLookupProperties }
328
#	Line 335 | Line 369 | begin
369		FResizing := true;
370		try
371		ColSum := 0;
338	–	for I := 0 to  ColCount - 1 do
339	–	ColSum := ColSum + ColWidths[I];
372
373	<	if Colsum <> ClientWidth then
373	>	if (ColCount = 1) and TDBDynamicGridColumn(Columns[0]).AutoSizeColumn then
374	>	Columns[0].Width := ClientWidth
375	>	else
376		begin
377	<	ResizeColCount := 0;
378	<	for I := 0 to Columns.Count -1 do
379	<	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn then
380	<	begin
381	<	Inc(ResizeColCount);
382	<	Colsum := Colsum + TDBDynamicGridColumn(Columns[I]).DesignWidth - Columns[I].Width;
383	<	Columns[I].Width := TDBDynamicGridColumn(Columns[I]).DesignWidth;
384	<	end;
385	<
386	<	if (Colsum < ClientWidth) and (ResizeColCount > 0) then
387	<	begin
388	<	adjustment := (ClientWidth - ColSum) div ResizeColCount;
389	<	n := (ClientWidth - ColSum) mod ResizeColCount;
390	<
391	<	for I := 0 to Columns.Count -1 do
392	<	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn then
393	<	begin
394	<	if I = 0 then
395	<	Columns[I].Width := Columns[I].Width + adjustment + n
396	<	else
397	<	Columns[I].Width := Columns[I].Width + adjustment;
398	<	end;
399	<	end;
377	>	for I := 0 to  ColCount - 1 do
378	>	if (I < FixedCols) or Columns[I - FixedCols].Visible then
379	>	ColSum := ColSum + ColWidths[I];
380	>
381	>	if Colsum <> ClientWidth then
382	>	begin
383	>	ResizeColCount := 0;
384	>	for I := 0 to Columns.Count -1 do
385	>	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn and Columns[I].Visible then
386	>	begin
387	>	Inc(ResizeColCount);
388	>	Colsum := Colsum + TDBDynamicGridColumn(Columns[I]).DesignWidth - Columns[I].Width;
389	>	Columns[I].Width := TDBDynamicGridColumn(Columns[I]).DesignWidth;
390	>	end;
391	>
392	>	if (Colsum < ClientWidth) and (ResizeColCount > 0) then
393	>	begin
394	>	adjustment := (ClientWidth - ColSum) div ResizeColCount;
395	>	n := (ClientWidth - ColSum) mod ResizeColCount;
396	>
397	>	for I := 0 to Columns.Count -1 do
398	>	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn and Columns[I].Visible then
399	>	begin
400	>	if I = 0 then
401	>	Columns[I].Width := Columns[I].Width + adjustment + n
402	>	else
403	>	Columns[I].Width := Columns[I].Width + adjustment;
404	>	end;
405	>	end;
406	>	end;
407		end;
408		PositionTotals;
409		UpdateEditorPanelBounds;
#	Line 374 | Line 415 | end;
415		procedure TDBDynamicGrid.DoEditorHide;
416		begin
417		inherited DoEditorHide;
418	<	if (FExpandedRow >= 0) and (FExpandedRow < RowCount) then
419	<	RowHeights[FExpandedRow] := DefaultRowHeight;
420	<	FExpandedRow := -1;
421	<	if CanFocus then SetFocus;
422	<	if assigned(FOnEditorPanelHide) then
423	<	OnEditorPanelHide(self);
424	<	DoOnResize;
418	>	if Editor = FEditorPanel then
419	>	begin
420	>	if FMouseDown then
421	>	Application.QueueAsyncCall(@PerformEditorHide,FExpandedRow)
422	>	else
423	>	PerformEditorHide(FExpandedRow);
424	>	FExpandedRow := -1;
425	>	end;
426		end;
427
428		procedure TDBDynamicGrid.DoEditorShow;
429		begin
430	+	if assigned(DataSource) and assigned(DataSource.DataSet) and
431	+	DataSource.DataSet.Active then
432	+	begin
433	+	if (DataSource.DataSet.RecordCount = 0) and (DataSource.DataSet.State <> dsInsert) then
434	+	DataSource.DataSet.Append
435	+	end;
436		if Editor = FEditorPanel then
437		begin
438		if ExpandEditorPanelBelowRow then
#	Line 397 | Line 445 | begin
445		FEditorPanel.PerformTab(true);  {Select First Control}
446		if assigned(FOnEditorPanelShow) then
447		OnEditorPanelShow(self);
448	+	if assigned(Editor) and Editor.Visible then
449	+	Editor.SetFocus;
450		end
451		else
452		inherited DoEditorShow;
#	Line 461 | Line 511 | begin
511		inherited KeyDown(Key, Shift);
512		end;
513
514	+	function TDBDynamicGrid.ActiveControl: TControl;
515	+	var AParent: TWinControl;
516	+	begin
517	+	Result := nil;
518	+	AParent := Parent;
519	+	while (AParent <> nil) and  not (AParent is TCustomForm) do
520	+	AParent := AParent.Parent;
521	+	if (AParent <> nil) and (AParent is TCustomForm)then
522	+	Result := TCustomForm(AParent).ActiveControl;
523	+	end;
524	+
525		procedure TDBDynamicGrid.DoShowEditorPanel(Data: PtrInt);
526		begin
527		if AppDestroying in Application.Flags then Exit;
#	Line 492 | Line 553 | end;
553		procedure TDBDynamicGrid.KeyDownHandler(Sender: TObject; var Key: Word;
554		Shift: TShiftState);
555		var Done: boolean;
556	+	AControl: TControl;
557		begin
558		if Visible and assigned(FEditorPanel) and FEditorPanel.Visible and FWeHaveFocus then
559		begin
560		Done := false;
561	+	AControl := ActiveControl;
562	+	if (AControl <> nil) and (AControl is TCustomComboBox)
563	+	and ((Key in [VK_UP,VK_DOWN]) or
564	+	(TCustomComboBox(AControl).DroppedDown and (Key = VK_RETURN)) or
565	+	((TCustomComboBox(AControl).Text <> '') and (Key =  VK_ESCAPE))) then
566	+	Exit; {ignore these keys if we are in a  combobox}
567	+
568	+	if (AControl <> nil) and (AControl is TCustomMemo)
569	+	and (Key in [VK_RETURN,VK_UP,VK_DOWN]) then Exit; {Ignore keys in a CustomMemo}
570	+
571	+	if (AControl <> nil) and (AControl is TCustomGrid)
572	+	and (Key in [VK_RETURN,VK_UP,VK_DOWN,VK_TAB]) then Exit; {Ignore keys in a Custom Grid}
573	+
574	+	if (AControl <> nil) and (AControl is TEBEdit) and (AControl.Owner is TDateEdit) then
575	+	begin
576	+	if (Key in [VK_LEFT,VK_RIGHT]) then Exit; {Ignore navigation keys}
577	+	if TDateEdit(AControl.Owner).DroppedDown and
578	+	(Key in [VK_RETURN,VK_UP,VK_DOWN,VK_ESCAPE]) then Exit; {Ignore TCalender navigation keys in a Data edit}
579	+	end;
580	+
581		if assigned(FOnKeyDownHander) then
582		OnKeyDownHander(Sender,Key,Shift,Done);
583		if Done then Exit;
#	Line 518 | Line 600 | begin
600		end
601		end;
602
603	+	procedure TDBDynamicGrid.PerformEditorHide(Data: PtrInt);
604	+	var ExpandedRow: integer;
605	+	begin
606	+	if AppDestroying in Application.Flags then Exit;
607	+	ExpandedRow := integer(Data);
608	+	if (ExpandedRow >= 0) and (ExpandedRow < RowCount) then
609	+	RowHeights[ExpandedRow] := DefaultRowHeight;
610	+	if CanFocus then SetFocus;
611	+	DoOnResize;
612	+	ResetSizes;
613	+	DoOnChangeBounds;
614	+	if assigned(FOnEditorPanelHide) then
615	+	OnEditorPanelHide(self);
616	+	end;
617	+
618		procedure TDBDynamicGrid.SetEditorPanel(AValue: TWinControl);
619		begin
620		if FEditorPanel = AValue then Exit;
621		if FEditorPanel <> nil then
622		RemoveFreeNotification(FEditorPanel);
623		FEditorPanel := AValue;
624	<	FreeNotification(FEditorPanel);
624	>	if FEditorPanel <> nil then
625	>	FreeNotification(FEditorPanel);
626		end;
627
628		procedure TDBDynamicGrid.ChangeBounds(ALeft, ATop, AWidth, AHeight: integer;
#	Line 552 | Line 650 | begin
650		inherited Loaded;
651		if assigned(FEditorPanel) and not (csDesigning in ComponentState)then
652		FEditorPanel.Visible := false;
653	<	DoGridResize
653	>	if Visible then
654	>	DoGridResize
655		end;
656
657		procedure TDBDynamicGrid.DoOnResize;
#	Line 576 | Line 675 | procedure TDBDynamicGrid.MouseDown(Butto
675		Y: Integer);
676		var Coord: TGridCoord;
677		begin
678	<	inherited MouseDown(Button, Shift, X, Y);
678	>	FMouseDown := true;
679	>	try
680	>	inherited MouseDown(Button, Shift, X, Y);
681	>	finally
682	>	FMouseDown := false;
683	>	end;
684
685		Coord := MouseCoord(X,Y);
686		if (Coord.X = 0) and (Coord.Y > 0) then
#	Line 585 | Line 689 | end;
689
690		procedure TDBDynamicGrid.Notification(AComponent: TComponent;
691		Operation: TOperation);
692	+	var i: integer;
693		begin
694		inherited Notification(AComponent, Operation);
695	<	if (Operation = opRemove) and
696	<	(AComponent = FEditorPanel) then FEditorPanel := nil;
695	>	if (Operation = opRemove) and not (csDestroying in ComponentState) then
696	>	begin
697	>	if AComponent = FEditorPanel then
698	>	FEditorPanel := nil
699	>	else
700	>	if AComponent is TControl then
701	>	begin
702	>	for i := 0 to Columns.Count - 1 do
703	>	if TDBDynamicGridColumn(Columns[I]).ColumnTotalsControl = AComponent then
704	>	TDBDynamicGridColumn(Columns[I]).ColumnTotalsControl := nil;
705	>	end;
706	>	end
707		end;
708
709		procedure TDBDynamicGrid.TopLeftChanged;
#	Line 601 | Line 716 | procedure TDBDynamicGrid.UpdateActive;
716		begin
717		inherited UpdateActive;
718
719	+	if not (csLoading in ComponentState) and assigned(DataLink)
720	+	and assigned(DataLink.DataSet) and DataLink.DataSet.Active then
721	+	DoGridResize;
722	+
723		if not (csLoading in ComponentState) and assigned(DataLink) and
724	+	assigned(FEditorPanel) and not FEditorPanel.Visible and
725		assigned(DataLink.DataSet) and (DataLink.DataSet.State = dsInsert) then
726		Application.QueueAsyncCall(@DoShowEditorPanel,0);
727		end;
#	Line 634 | Line 754 | end;
754		procedure TDBDynamicGrid.HideEditorPanel;
755		begin
756		if Editor = FEditorPanel then
757	<	EditorMode := false;
757	>	EditorMode := false;
758		end;
759
760		procedure TDBDynamicGrid.ShowEditorPanel;
761	+	var aEditor: TWinControl;
762		begin
763	<	if csDesigning in ComponentState then Exit;
764	<	Editor := FEditorPanel;
763	>	if (csDesigning in ComponentState) or
764	>	(DataSource = nil) or (DataSource.DataSet = nil)
765	>	or ((DataSource.DataSet.RecordCount = 0) and (DataSource.DataSet.State <> dsInsert)) then
766	>	Exit;
767	>	aEditor := FEditorPanel;
768	>	if assigned(FOnSelectPanelEditor) then
769	>	OnSelectPanelEditor(self,aEditor);
770	>	if FEditorPanel <> aEditor then
771	>	SetEditorPanel(aEditor);
772	>	Editor := aEditor;
773		EditorMode := true;
774		end;
775
#	Line 679 | Line 808 | begin
808		Result := inherited Width
809		end;
810
811	+	type
812	+	THackedGrid = class(TIBDynamicGrid)
813	+	public
814	+	property FixedCols;
815	+	end;
816	+
817		{ TDBLookupCellEditor }
818
819	+	function TDBLookupCellEditor.EditingKeyField: boolean;
820	+	begin
821	+	with TIBDynamicGridColumn(TDBGrid(FGrid).Columns[FCol - THackedGrid(FGrid).FixedCols]) do
822	+	Result := CompareText(FieldName, DBLookupProperties.DataFieldName) = 0;
823	+	end;
824	+
825		procedure TDBLookupCellEditor.WndProc(var TheMessage: TLMessage);
826		begin
827		if TheMessage.msg=LM_KILLFOCUS then begin
#	Line 698 | Line 839 | procedure TDBLookupCellEditor.CloseUp;
839		begin
840		UpdateData(nil); {Force Record Update}
841		if FGrid<>nil then
842	<	(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, Text);
842	>	Begin
843	>	if EditingKeyField then
844	>	begin
845	>	if not VarIsNull(KeyValue) then
846	>	(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, KeyValue)
847	>	end
848	>	else
849	>	(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, Trim(Text));
850	>	(FGrid as TIBDynamicGrid).UpdateData;
851	>	end;
852		inherited CloseUp;
853		end;
854
#	Line 710 | Line 860 | begin
860		inherited KeyDown(Key, Shift);
861		end;
862
863	+	procedure TDBLookupCellEditor.Loaded;
864	+	begin
865	+	inherited Loaded;
866	+	Text := '';
867	+	end;
868	+
869		procedure TDBLookupCellEditor.msg_GetValue(var Msg: TGridMessage);
870		begin
871		CheckAndInsert;
872		Msg.Col := FCol;
873		Msg.Row := FRow;
874	<	Msg.Value:= Trim(Text);
874	>	if EditingKeyField then
875	>	begin
876	>	if not VarIsNull(KeyValue) then
877	>	Msg.Value:= KeyValue
878	>	else
879	>	Msg.Value:= ''
880	>	end
881	>	else
882	>	Msg.Value:= Trim(Text);
883		end;
884
885		procedure TDBLookupCellEditor.msg_SetGrid(var Msg: TGridMessage);
#	Line 730 | Line 894 | begin
894		FCol := Msg.Col;
895		FRow := Msg.Row;
896		FEditText := Msg.Value;
733	–	SelStart := Length(Text);
897		TIBDynamicGrid(FGrid).SetupEditor(self,FCol);
898		end;
899
#	Line 779 | Line 942 | begin
942		Editor.OnAutoInsert := OnAutoInsert;
943		Editor.OnCanAutoInsert := OnCanAutoInsert;
944		Editor.OnDrawItem := OnDrawItem;
945	+	Editor.OnCloseUp := OnCloseUp;
946
947		{Setup Data Links}
948		if KeyField <> '' then
#	Line 803 | Line 967 | begin
967		if DataFieldName <> '' then
968		Editor.DataSource := TDBGrid(Grid).DataSource;
969		end;
970	<	Editor.Text := Editor.FEditText;
970	>	if Editor.EditingKeyField then
971	>	begin
972	>	if not Field.IsNull then
973	>	Editor.KeyValue := Editor.FEditText
974	>	end
975	>	else
976	>	Editor.Text := Editor.FEditText;
977	>	Editor.SelStart := Length(Editor.Text);
978		end;
979
980		procedure TIBDynamicGridColumn.SetInitialSortColumn(AValue: boolean);
#	Line 827 | Line 998 | end;
998		destructor TIBDynamicGridColumn.Destroy;
999		begin
1000		if assigned(FDBLookupProperties) then FDBLookupProperties.Free;
1001	+	Application.RemoveAsyncCalls(self);
1002		inherited Destroy;
1003		end;
1004
833	–	{ TDynamicGridDataLink }
834	–
835	–	procedure TDynamicGridDataLink.DataEvent(Event: TDataEvent; Info: Ptrint);
836	–	begin
837	–	if (Event = deCheckBrowseMode) and (Info = 1) and not DataSet.Active then
838	–	begin
839	–	if (DataSet is TIBDataSet) then
840	–	FOwner.UpdateSQL(self,TIBDataSet(DataSet).Parser)
841	–	else
842	–	if (DataSet is TIBQuery) then
843	–	FOwner.UpdateSQL(self,TIBQuery(DataSet).Parser)
844	–	end
845	–	else
846	–	inherited DataEvent(Event, Info);
847	–	end;
848	–
849	–	procedure TDynamicGridDataLink.DataSetScrolled(Distance: Integer);
850	–	begin
851	–	inherited DataSetScrolled(Distance);
852	–	FOwner.DataSetScrolled(self)
853	–	end;
854	–
855	–	constructor TDynamicGridDataLink.Create(AOwner: TIBDynamicGrid);
856	–	begin
857	–	inherited Create;
858	–	FOwner := AOwner
859	–	end;
860	–
1005
1006		{ TIBDynamicGrid }
1007
#	Line 872 | Line 1016 | begin
1016		OnColumnHeaderClick(self,Index);
1017
1018		FLastColIndex := Index;
1019	<	if assigned(DataSource) and assigned(DataSource.DataSet) and DataSource.DataSet.Active then
1019	>	FFieldPosition := 0;
1020	>	if assigned(DataSource) and assigned(DataSource.DataSet) and DataSource.DataSet.Active
1021	>	and (DataSource.DataSet is TIBParserDataSet) then
1022		begin
1023	+	if FLastColIndex < Columns.Count then
1024	+	{try and cache field position while dataset still open}
1025	+	FFieldPosition := TIBParserDataSet(DataSource.DataSet).Parser.GetFieldPosition(Columns[FLastColIndex].FieldName);
1026		DataSource.DataSet.Active := false;
1027		Application.QueueAsyncCall(@DoReopen,0)
1028		end;
#	Line 901 | Line 1050 | end;
1050		procedure TIBDynamicGrid.SetDataSource(AValue: TDataSource);
1051		begin
1052		inherited DataSource := AValue;
1053	<	FDataLink.DataSource := AValue;
1053	>	IBControlLinkChanged;
1054		end;
1055
1056		procedure TIBDynamicGrid.SetEditorBorderStyle(AValue: TBorderStyle);
#	Line 921 | Line 1070 | begin
1070		for i := 0 to Columns.Count - 1 do
1071		begin
1072		if TIBDynamicGridColumn(columns[i]).InitialSortColumn then
1073	+	begin
1074	+	FFieldPosition := 0;
1075		FLastColIndex := i
1076	+	end
1077		end
1078		end;
1079
#	Line 938 | Line 1090 | end;
1090
1091		procedure TIBDynamicGrid.UpdateSQL(Sender: TObject; Parser: TSelectSQLParser);
1092		var OrderBy: string;
941	–	FieldPosition: integer;
1093		begin
1094	<	if (Sender = TObject(FDataLink)) and assigned(DataSource) and assigned(DataSource.DataSet)
1094	>	if assigned(DataSource) and assigned(DataSource.DataSet)
1095		and (DataSource.DataSet is TIBCustomDataSet) then
1096		begin
1097	<	FieldPosition := Parser.GetFieldPosition(Columns[FLastColIndex].FieldName);
1098	<	if FieldPosition = 0 then Exit;
1099	<
1100	<	if Descending then
1101	<	Parser.OrderByClause := IntToStr(FieldPosition) + ' desc'
1102	<	else
1103	<	Parser.OrderByClause := IntToStr(FieldPosition) + ' asc';
1097	>	if (FFieldPosition = 0) and (FLastColIndex >= 0) and (FLastColIndex < Columns.Count) then
1098	>	{Not cached - let's hope we can find it before the dataset is opened.
1099	>	Won't work if dynamic columns}
1100	>	FFieldPosition := Parser.GetFieldPosition(Columns[FLastColIndex].FieldName);
1101	>	if FFieldPosition > 0 then
1102	>	begin
1103	>	if Descending then
1104	>	Parser.OrderByClause := IntToStr(FFieldPosition) + ' desc'
1105	>	else
1106	>	Parser.OrderByClause := IntToStr(FFieldPosition) + ' asc';
1107	>	end;
1108
1109		if assigned(FOnUpdateSortOrder) then
1110		begin
#	Line 972 | Line 1127 | begin
1127
1128		end;
1129
1130	<	procedure TIBDynamicGrid.DataSetScrolled(Sender: TObject);
976	<	var i: integer;
977	<	F: TField;
978	<	begin
979	<	SetLength(FBookmark,FIndexFieldsList.Count);
980	<	for i := 0 to FIndexFieldsList.Count - 1 do
981	<	begin
982	<	F := DataSource.DataSet.FindField(FIndexFieldsList[i]);
983	<	if assigned(F) then
984	<	FBookmark[i] := F.AsVariant;
985	<	end;
986	<	end;
987	<
988	<	procedure TIBDynamicGrid.RestorePosition(Data: PtrInt);
1130	>	procedure TIBDynamicGrid.RestorePosition;
1131		begin
990	–	if AppDestroying in Application.Flags then Exit;
991	–
1132		if assigned(DataSource) and assigned(DataSource.DataSet) and DataSource.DataSet.Active then
1133		begin
1134	+	if assigned(FOnRestorePosition) then
1135	+	OnRestorePosition(self,@FBookmark);
1136		if (Length(FBookmark) > 0) and
1137		DataSource.DataSet.Locate(FIndexFieldNames,FBookmark,[]) then Exit;
1138
#	Line 999 | Line 1141 | begin
1141		end;
1142		end;
1143
1144	+	procedure TIBDynamicGrid.SavePosition;
1145	+	var i: integer;
1146	+	F: TField;
1147	+	begin
1148	+	if FIndexFieldsList = nil then Exit;
1149	+
1150	+	SetLength(FBookmark,FIndexFieldsList.Count);
1151	+	for i := 0 to FIndexFieldsList.Count - 1 do
1152	+	begin
1153	+	F := DataSource.DataSet.FindField(FIndexFieldsList[i]);
1154	+	if assigned(F) then
1155	+	FBookmark[i] := F.AsVariant;
1156	+	end;
1157	+	end;
1158	+
1159		procedure TIBDynamicGrid.DoReOpen(Data: PtrInt);
1160		begin
1161		DataSource.DataSet.Active := true;
1162		end;
1163
1164	+	procedure TIBDynamicGrid.IBControlLinkChanged;
1165	+	begin
1166	+	if (DataSource <> nil) and (DataSource.DataSet <> nil) and (DataSource.DataSet is TIBParserDataSet) then
1167	+	FIBControlLink.IBDataSet := TIBCustomDataSet(DataSource.DataSet)
1168	+	else
1169	+	FIBControlLink.IBDataSet := nil;
1170	+	end;
1171	+
1172		procedure TIBDynamicGrid.SetupEditor(aEditor: TDBLookupCellEditor; aCol: integer
1173		);
1174		var C: TIBDynamicGridColumn;
1175		begin
1176		C := ColumnFromGridColumn(aCol) as TIBDynamicGridColumn;
1177	<	C.SetupEditor(aEditor);
1177	>	if (c <> nil) then
1178	>	C.SetupEditor(aEditor);
1179		end;
1180
1181		procedure TIBDynamicGrid.DoEditorHide;
#	Line 1025 | Line 1191 | end;
1191		procedure TIBDynamicGrid.Loaded;
1192		begin
1193		inherited Loaded;
1194	+	IBControlLinkChanged;
1195		ProcessColumns;
1196		end;
1197
#	Line 1054 | Line 1221 | begin
1221		AllowOutboundEvents := false;
1222		try
1223		Coord := MouseCoord(X,Y);
1224	<	if AllowColumnSort and  (Coord.X <> -1) and
1224	>	if AllowColumnSort and  (Coord.X <> -1) and (FixedRows > 0) and
1225		(Coord.Y = 0) and (MouseCoord(X+5,Y).X = Coord.X) {not on boundary}
1226		and (MouseCoord(X-5,Y).X = Coord.X) then
1227		ColumnHeaderClick(Coord.X-1);
#	Line 1063 | Line 1230 | begin
1230		end;
1231		end;
1232
1233	+	procedure TIBDynamicGrid.MoveSelection;
1234	+	begin
1235	+	inherited MoveSelection;
1236	+	SavePosition;
1237	+	end;
1238	+
1239		procedure TIBDynamicGrid.LinkActive(Value: Boolean);
1240		begin
1241	+	IBControlLinkChanged;
1242		inherited LinkActive(Value);
1243		if (FActive <> Value) and Value then
1244	<	Application.QueueAsyncCall(@RestorePosition,0);
1244	>	RestorePosition;
1245		FActive := Value
1246		end;
1247
1248		procedure TIBDynamicGrid.Notification(AComponent: TComponent;
1249		Operation: TOperation);
1250	+	var i: integer;
1251		begin
1252		inherited Notification(AComponent, Operation);
1253	<	if (Operation = opRemove) and
1254	<	(FDataLink <> nil) and (AComponent = DataSource) then DataSource := nil;
1253	>	if (Operation = opRemove) then
1254	>	begin
1255	>	if (FIBControlLink <> nil) and (AComponent = DataSource) then
1256	>	FIBControlLink.IBDataSet := nil
1257	>	else
1258	>	if AComponent is TDataSource then
1259	>	begin
1260	>	for i := 0 to Columns.Count - 1 do
1261	>	if TIBDynamicGridColumn(Columns[I]).DBLookupProperties.ListSource = AComponent then
1262	>	TIBDynamicGridColumn(Columns[I]).DBLookupProperties.ListSource := nil;
1263	>	end
1264	>	end
1265		end;
1266
1267		procedure TIBDynamicGrid.UpdateActive;
1268		begin
1269		inherited UpdateActive;
1270	<	if assigned(FDataLink) and assigned(FDataLink.DataSet) and
1271	<	FDataLink.DataSet.Active and (FDataLink.DataSet.State = dsInsert) then
1272	<	DataSetScrolled(nil);
1270	>	if assigned(DataLink) and assigned(DataLink.DataSet) and
1271	>	DataLink.DataSet.Active and (DataLink.DataSet.State = dsInsert) then
1272	>	SavePosition;
1273		end;
1274
1275		constructor TIBDynamicGrid.Create(TheComponent: TComponent);
1276		begin
1277		inherited Create(TheComponent);
1278		FAllowColumnSort := true;
1279	<	FDataLink := TDynamicGridDataLink.Create(self);
1279	>	FIBControlLink := TIBGridControlLink.Create(self);
1280		FIndexFieldsList := TStringList.Create;
1281		FIndexFieldsList.Delimiter := ';';
1282		FIndexFieldsList.StrictDelimiter := true;
#	Line 1103 | Line 1288 | end;
1288
1289		destructor TIBDynamicGrid.Destroy;
1290		begin
1291	<	if assigned(FDataLink) then FDataLink.Free;
1291	>	if assigned(FIBControlLink) then FIBControlLink.Free;
1292		if assigned(FIndexFieldsList) then FIndexFieldsList.Free;
1293		if assigned(FDBLookupCellEditor) then FDBLookupCellEditor.Free;
1294	+	Application.RemoveAsyncCalls(self);
1295		inherited Destroy;
1296		end;
1297

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