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root/public/ibx/branches/journaling/ibcontrols/IBDynamicGrid.pas

Comparing ibx/trunk/ibcontrols/IBDynamicGrid.pas (file contents):
Revision 35 by tony, Tue Jan 26 14:38:47 2016 UTC vs.
Revision 49 by tony, Thu Feb 2 16:20:12 2017 UTC

#	Line 150 | 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;
#	Line 166 | 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 176 | Line 179 | end;
179		FOnEditorPanelHide: TNotifyEvent;
180		FOnEditorPanelShow: TNotifyEvent;
181		FOnKeyDownHander: TKeyDownHandler;
182	+	FOnSelectPanelEditor: TOnSelectPanelEditor;
183		FResizing: boolean;
184		FWeHaveFocus: boolean;
185		FHidingEditorPanel: boolean;
#	Line 223 | Line 227 | end;
227		property OnEditorPanelShow: TNotifyEvent read FOnEditorPanelShow write FOnEditorPanelShow;
228		property OnEditorPanelHide: TNotifyEvent read FOnEditorPanelHide write FOnEditorPanelHide;
229		property OnKeyDownHander: TKeyDownHandler read FOnKeyDownHander write FOnKeyDownHander;
230	+	property OnSelectPanelEditor: TOnSelectPanelEditor read FOnSelectPanelEditor
231	+	write FOnSelectPanelEditor;
232		end;
233
234		{TIBGridControlLink}
#	Line 259 | Line 265 | end;
265		FBookmark: TLocationArray;
266		FDBLookupCellEditor: TDBLookupCellEditor;
267		FActive: boolean;
268	+	FFieldPosition: integer;
269		procedure ColumnHeaderClick(Index: integer);
270		function GetDataSource: TDataSource;
271		function GetEditorBorderStyle: TBorderStyle;
#	Line 304 | Line 311 | end;
311
312		implementation
313
314	<	uses Math, IBQuery, LCLType;
314	>	uses LCLType, Variants, EditBtn;
315
316		{ TIBGridControlLink }
317
#	Line 370 | Line 377 | begin
377		else
378		begin
379		for I := 0 to  ColCount - 1 do
380	+	if (I < FixedCols) or Columns[I - FixedCols].Visible then
381		ColSum := ColSum + ColWidths[I];
382
383		if Colsum <> ClientWidth then
384		begin
385		ResizeColCount := 0;
386		for I := 0 to Columns.Count -1 do
387	<	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn then
387	>	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn and Columns[I].Visible then
388		begin
389		Inc(ResizeColCount);
390		Colsum := Colsum + TDBDynamicGridColumn(Columns[I]).DesignWidth - Columns[I].Width;
#	Line 389 | Line 397 | begin
397		n := (ClientWidth - ColSum) mod ResizeColCount;
398
399		for I := 0 to Columns.Count -1 do
400	<	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn then
400	>	if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn and Columns[I].Visible then
401		begin
402		if I = 0 then
403		Columns[I].Width := Columns[I].Width + adjustment + n
#	Line 560 | Line 568 | begin
568		Exit; {ignore these keys if we are in a  combobox}
569
570		if (AControl <> nil) and (AControl is TCustomMemo)
571	<	and (Key in [VK_RETURN,VK_UP,VK_DOWN]) then Exit; {Ignore Return in a CustomMemo}
571	>	and (Key in [VK_RETURN,VK_UP,VK_DOWN]) then Exit; {Ignore keys in a CustomMemo}
572
573		if (AControl <> nil) and (AControl is TCustomGrid)
574	<	and (Key in [VK_RETURN,VK_UP,VK_DOWN,VK_TAB]) then Exit; {Ignore Return in a CustomMemo}
574	>	and (Key in [VK_RETURN,VK_UP,VK_DOWN,VK_TAB]) then Exit; {Ignore keys in a Custom Grid}
575	>
576	>	if (AControl <> nil) and (AControl is TEBEdit) and (AControl.Owner is TDateEdit) then
577	>	begin
578	>	if (Key in [VK_LEFT,VK_RIGHT]) then Exit; {Ignore navigation keys}
579	>	if TDateEdit(AControl.Owner).DroppedDown and
580	>	(Key in [VK_RETURN,VK_UP,VK_DOWN,VK_ESCAPE]) then Exit; {Ignore TCalender navigation keys in a Data edit}
581	>	end;
582
583		if assigned(FOnKeyDownHander) then
584		OnKeyDownHander(Sender,Key,Shift,Done);
#	Line 608 | Line 623 | begin
623		if FEditorPanel <> nil then
624		RemoveFreeNotification(FEditorPanel);
625		FEditorPanel := AValue;
626	<	FreeNotification(FEditorPanel);
626	>	if FEditorPanel <> nil then
627	>	FreeNotification(FEditorPanel);
628		end;
629
630		procedure TDBDynamicGrid.ChangeBounds(ALeft, ATop, AWidth, AHeight: integer;
#	Line 675 | Line 691 | end;
691
692		procedure TDBDynamicGrid.Notification(AComponent: TComponent;
693		Operation: TOperation);
694	+	var i: integer;
695		begin
696		inherited Notification(AComponent, Operation);
697	<	if (Operation = opRemove) and
698	<	(AComponent = FEditorPanel) then FEditorPanel := nil;
697	>	if (Operation = opRemove) and not (csDestroying in ComponentState) then
698	>	begin
699	>	if AComponent = FEditorPanel then
700	>	FEditorPanel := nil
701	>	else
702	>	if AComponent is TControl then
703	>	begin
704	>	for i := 0 to Columns.Count - 1 do
705	>	if TDBDynamicGridColumn(Columns[I]).ColumnTotalsControl = AComponent then
706	>	TDBDynamicGridColumn(Columns[I]).ColumnTotalsControl := nil;
707	>	end;
708	>	end
709		end;
710
711		procedure TDBDynamicGrid.TopLeftChanged;
#	Line 691 | Line 718 | procedure TDBDynamicGrid.UpdateActive;
718		begin
719		inherited UpdateActive;
720
721	+	if not (csLoading in ComponentState) and assigned(DataLink)
722	+	and assigned(DataLink.DataSet) and DataLink.DataSet.Active then
723	+	DoGridResize;
724	+
725		if not (csLoading in ComponentState) and assigned(DataLink) and
726		assigned(FEditorPanel) and not FEditorPanel.Visible and
727		assigned(DataLink.DataSet) and (DataLink.DataSet.State = dsInsert) then
#	Line 729 | Line 760 | begin
760		end;
761
762		procedure TDBDynamicGrid.ShowEditorPanel;
763	+	var aEditor: TWinControl;
764		begin
765		if (csDesigning in ComponentState) or
766		(DataSource = nil) or (DataSource.DataSet = nil)
767		or ((DataSource.DataSet.RecordCount = 0) and (DataSource.DataSet.State <> dsInsert)) then
768		Exit;
769	<	Editor := FEditorPanel;
769	>	aEditor := FEditorPanel;
770	>	if assigned(FOnSelectPanelEditor) then
771	>	OnSelectPanelEditor(self,aEditor);
772	>	if FEditorPanel <> aEditor then
773	>	SetEditorPanel(aEditor);
774	>	Editor := aEditor;
775		EditorMode := true;
776		end;
777
#	Line 773 | Line 810 | begin
810		Result := inherited Width
811		end;
812
813	+	type
814	+	THackedGrid = class(TIBDynamicGrid)
815	+	public
816	+	property FixedCols;
817	+	end;
818	+
819		{ TDBLookupCellEditor }
820
821	+	function TDBLookupCellEditor.EditingKeyField: boolean;
822	+	begin
823	+	with TIBDynamicGridColumn(TDBGrid(FGrid).Columns[FCol - THackedGrid(FGrid).FixedCols]) do
824	+	Result := CompareText(FieldName, DBLookupProperties.DataFieldName) = 0;
825	+	end;
826	+
827		procedure TDBLookupCellEditor.WndProc(var TheMessage: TLMessage);
828		begin
829		if TheMessage.msg=LM_KILLFOCUS then begin
#	Line 793 | Line 842 | begin
842		UpdateData(nil); {Force Record Update}
843		if FGrid<>nil then
844		Begin
845	<	(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, Trim(Text));
845	>	if EditingKeyField then
846	>	begin
847	>	if not VarIsNull(KeyValue) then
848	>	(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, KeyValue)
849	>	end
850	>	else
851	>	(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, Trim(Text));
852		(FGrid as TIBDynamicGrid).UpdateData;
853		end;
854		inherited CloseUp;
#	Line 818 | Line 873 | begin
873		CheckAndInsert;
874		Msg.Col := FCol;
875		Msg.Row := FRow;
876	<	Msg.Value:= Trim(Text);
876	>	if EditingKeyField then
877	>	begin
878	>	if not VarIsNull(KeyValue) then
879	>	Msg.Value:= KeyValue
880	>	else
881	>	Msg.Value:= ''
882	>	end
883	>	else
884	>	Msg.Value:= Trim(Text);
885		end;
886
887		procedure TDBLookupCellEditor.msg_SetGrid(var Msg: TGridMessage);
#	Line 906 | Line 969 | begin
969		if DataFieldName <> '' then
970		Editor.DataSource := TDBGrid(Grid).DataSource;
971		end;
972	<	Editor.Text := Editor.FEditText;
972	>	if Editor.EditingKeyField then
973	>	begin
974	>	if not Field.IsNull then
975	>	Editor.KeyValue := Editor.FEditText
976	>	end
977	>	else
978	>	Editor.Text := Editor.FEditText;
979		Editor.SelStart := Length(Editor.Text);
980		end;
981
#	Line 948 | Line 1017 | begin
1017		OnColumnHeaderClick(self,Index);
1018
1019		FLastColIndex := Index;
1020	<	if assigned(DataSource) and assigned(DataSource.DataSet) and DataSource.DataSet.Active then
1020	>	FFieldPosition := 0;
1021	>	if assigned(DataSource) and assigned(DataSource.DataSet) and DataSource.DataSet.Active
1022	>	and (DataSource.DataSet is TIBParserDataSet) then
1023		begin
1024	+	if FLastColIndex < Columns.Count then
1025	+	{try and cache field position while dataset still open}
1026	+	FFieldPosition := TIBParserDataSet(DataSource.DataSet).Parser.GetFieldPosition(Columns[FLastColIndex].FieldName);
1027		DataSource.DataSet.Active := false;
1028		Application.QueueAsyncCall(@DoReopen,0)
1029		end;
#	Line 997 | Line 1071 | begin
1071		for i := 0 to Columns.Count - 1 do
1072		begin
1073		if TIBDynamicGridColumn(columns[i]).InitialSortColumn then
1074	+	begin
1075	+	FFieldPosition := 0;
1076		FLastColIndex := i
1077	+	end
1078		end
1079		end;
1080
#	Line 1014 | Line 1091 | end;
1091
1092		procedure TIBDynamicGrid.UpdateSQL(Sender: TObject; Parser: TSelectSQLParser);
1093		var OrderBy: string;
1017	–	FieldPosition: integer;
1094		begin
1095		if assigned(DataSource) and assigned(DataSource.DataSet)
1096		and (DataSource.DataSet is TIBCustomDataSet) then
1097		begin
1098	<	if (FLastColIndex < 0) or (FLastColIndex >= Columns.Count) then Exit;
1099	<	FieldPosition := Parser.GetFieldPosition(Columns[FLastColIndex].FieldName);
1100	<	if FieldPosition > 0 then
1098	>	if (FFieldPosition = 0) and (FLastColIndex >= 0) and (FLastColIndex < Columns.Count) then
1099	>	{Not cached - let's hope we can find it before the dataset is opened.
1100	>	Won't work if dynamic columns}
1101	>	FFieldPosition := Parser.GetFieldPosition(Columns[FLastColIndex].FieldName);
1102	>	if FFieldPosition > 0 then
1103		begin
1104		if Descending then
1105	<	Parser.OrderByClause := IntToStr(FieldPosition) + ' desc'
1105	>	Parser.OrderByClause := IntToStr(FFieldPosition) + ' desc'
1106		else
1107	<	Parser.OrderByClause := IntToStr(FieldPosition) + ' asc';
1107	>	Parser.OrderByClause := IntToStr(FFieldPosition) + ' asc';
1108		end;
1109
1110		if assigned(FOnUpdateSortOrder) then
#	Line 1170 | Line 1248 | end;
1248
1249		procedure TIBDynamicGrid.Notification(AComponent: TComponent;
1250		Operation: TOperation);
1251	+	var i: integer;
1252		begin
1253		inherited Notification(AComponent, Operation);
1254	<	if (Operation = opRemove) and
1255	<	(FIBControlLink <> nil) and (AComponent = DataSource) then FIBControlLink.IBDataSet := nil;
1254	>	if (Operation = opRemove) then
1255	>	begin
1256	>	if (FIBControlLink <> nil) and (AComponent = DataSource) then
1257	>	FIBControlLink.IBDataSet := nil
1258	>	else
1259	>	if AComponent is TDataSource then
1260	>	begin
1261	>	for i := 0 to Columns.Count - 1 do
1262	>	if TIBDynamicGridColumn(Columns[I]).DBLookupProperties.ListSource = AComponent then
1263	>	TIBDynamicGridColumn(Columns[I]).DBLookupProperties.ListSource := nil;
1264	>	end
1265	>	end
1266		end;
1267
1268		procedure TIBDynamicGrid.UpdateActive;

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