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Comparing ibx/trunk/ibcontrols/IBLookupComboEditBox.pas (file contents):
Revision 39 by tony, Tue May 17 08:14:52 2016 UTC vs.
Revision 225 by tony, Tue Apr 3 09:09:05 2018 UTC

# Line 54 | Line 54 | type
54      FOwner: TIBLookupComboEditBox;
55    protected
56      procedure ActiveChanged; override;
57 +    procedure DataEvent(Event: TDataEvent; Info: Ptrint); override;
58      procedure RecordChanged(Field: TField); override;
59      procedure UpdateData; override;
60    public
# Line 76 | Line 77 | type
77  
78    TIBLookupComboEditBox = class(TDBLookupComboBox)
79    private
79 –    FCanAutoInsert: TCanAutoInsert;
80      { Private declarations }
81      FDataLink: TIBLookupComboDataLink;
82      FIBLookupControlLink: TIBLookupControlLink;
# Line 95 | Line 95 | type
95      FForceAutoComplete: boolean;
96      FInCheckAndInsert: boolean;
97      FLastKeyValue: variant;
98 +    FCurText: string;
99 +    FModified: boolean;
100      procedure DoActiveChanged(Data: PtrInt);
101      function GetAutoCompleteText: TComboBoxAutoCompleteText;
102      function GetListSource: TDataSource;
# Line 121 | Line 123 | type
123      procedure SetItemIndex(const Val: integer); override;
124      function SQLSafe(aText: string): string;
125      procedure UpdateShowing; override;
126 <
126 >    procedure UpdateData(Sender: TObject); override;
127    public
128      { Public declarations }
129      constructor Create(TheComponent: TComponent); override;
# Line 145 | Line 147 | type
147  
148   implementation
149  
150 < uses IBQuery, LCLType, Variants, LCLProc;
150 > uses LCLType, Variants, LCLProc, LazUTF8;
151  
152   { TIBLookupControlLink }
153  
# Line 167 | Line 169 | begin
169    FOwner.ActiveChanged(self)
170   end;
171  
172 + procedure TIBLookupComboDataLink.DataEvent(Event: TDataEvent; Info: Ptrint);
173 + begin
174 +  inherited DataEvent(Event, Info);
175 +  if Event = deLayoutChange then
176 +   FOwner.LookupCache := FOwner.LookupCache; {sneaky way of calling UpdateLookup}
177 + end;
178 +
179   procedure TIBLookupComboDataLink.RecordChanged(Field: TField);
180   begin
181    FOwner.RecordChanged(self,Field);
# Line 186 | Line 195 | end;
195   { TIBLookupComboEditBox }
196  
197   procedure TIBLookupComboEditBox.HandleTimer(Sender: TObject);
189 – var ActiveState: boolean;
198   begin
199    FTimer.Interval := 0;
200    FFiltered := Text <> '';
# Line 315 | Line 323 | procedure TIBLookupComboEditBox.UpdateLi
323   var
324    iSelStart: Integer; // char position
325    sCompleteText, sPrefixText, sResultText: string;
318 –  curText: string;
326   begin
327    if assigned(ListSource) and assigned(ListSource.DataSet) and (ListSource.DataSet is TIBCustomDataSet)
328       and ListSource.DataSet.Active then
329    begin
330 +    FCurText := Text;
331      FUpdating := true;
332      try
333           iSelStart := SelStart;//Capture original cursor position
334           if ((iSelStart < UTF8Length(Text)) and
335             (cbactEndOfLineComplete in AutoCompleteText)) then
336                  Exit;
329 –         curText := Text;
337           sPrefixText := UTF8Copy(Text, 1, iSelStart);
338           ListSource.DataSet.Active := false;
339           ListSource.DataSet.Active :=  true;
340 <         Text := curText;
341 <         if not FExiting and (FForceAutoComplete or Focused) and (Text <> '')then
340 >         Text := FCurText;
341 >         if not FExiting and (FForceAutoComplete or Focused) and (FCurText <> '')then
342           begin
343             if ListSource.DataSet.Active and (ListSource.DataSet.RecordCount > 0) then
344             begin
345               sCompleteText := ListSource.DataSet.FieldByName(ListField).AsString;
346 <             if (sCompleteText <> Text) then
346 >             if (sCompleteText <> FCurText) then
347               begin
348 +               KeyValue := ListSource.DataSet.FieldByName(KeyField).AsVariant;
349                 sResultText := sCompleteText;
350                 if ((cbactEndOfLineComplete in AutoCompleteText) and
351                           (cbactRetainPrefixCase in AutoCompleteText)) then
# Line 347 | Line 355 | begin
355                 end;
356                 Text := sResultText;
357                 SelStart := iSelStart;
358 <               SelLength := UTF8Length(Text);
358 >               SelLength := UTF8Length(Text) - iSelStart;
359               end;
360 <             KeyValue := ListSource.DataSet.FieldByName(KeyField).AsVariant;
360 >           end
361 >           else
362 >           begin
363 >             SelStart := iSelStart;
364 >             SelLength := 0;
365             end;
366           end;
367      finally
368        FUpdating := false
369      end;
370 +    FModified := true;
371    end;
372   end;
373  
374   procedure TIBLookupComboEditBox.UpdateSQL(Sender: TObject;
375    Parser: TSelectSQLParser);
376   var FieldPosition: integer;
377 +    FilterText: string;
378   begin
379    if FFiltered then
380    begin
381 +    if FUpdating then
382 +      FilterText := FCurText
383 +    else
384 +      FilterText := Text;
385      if cbactSearchCaseSensitive in AutoCompleteText then
386        Parser.Add2WhereClause(GetRelationNameQualifier + '"' + ListField + '" Like ''' +
387 <                                  SQLSafe(Text) + '%''')
387 >                                  SQLSafe(FilterText) + '%''')
388      else
389        Parser.Add2WhereClause('Upper(' + GetRelationNameQualifier + '"' +  ListField + '") Like Upper(''' +
390 <                                  SQLSafe(Text) + '%'')');
390 >                                  SQLSafe(FilterText) + '%'')');
391  
392 <  end;
393 <  if cbactSearchAscending in AutoCompleteText then
394 <  begin
395 <    FieldPosition := Parser.GetFieldPosition(ListField);
378 <    if FieldPosition = 0 then Exit;
392 >    if cbactSearchAscending in AutoCompleteText then
393 >    begin
394 >      FieldPosition := Parser.GetFieldPosition(ListField);
395 >      if FieldPosition = 0 then Exit;
396  
397 <    Parser.OrderByClause := IntToStr(FieldPosition) + ' ascending';
397 >      Parser.OrderByClause := IntToStr(FieldPosition) + ' ascending';
398 >    end;
399    end;
400   end;
401  
# Line 494 | Line 512 | begin
512      SelectAll;
513    end
514    else
515 +  if AutoComplete and (Style <> csDropDownList) then
516    begin
517 <    FTimer.Interval := 0;
518 <    if (IsEditableTextKey(Key) or (Key = VK_BACK))
519 <       and AutoComplete and (Style <> csDropDownList) and
520 <       (not (cbactEndOfLineComplete in AutoCompleteText) or (SelStart = UTF8Length(Text))) then
517 >    if (Key = VK_BACK) or (Key = VK_DELETE) then
518 >    begin
519 >      if SelStart = 0 then
520 >      begin
521 >        SelStart := UTF8Length(Text);
522 >        SelLength := 0;
523 >      end;
524 >      FTimer.Interval := 0;
525 >    end
526 >    else
527 >    if IsEditableTextKey(Key) and
528 >     (not(cbactEndOfLineComplete in AutoCompleteText) or (SelStart = UTF8Length(Text))) then
529 >    begin
530 >      FTimer.Interval := 0;
531        FTimer.Interval := FKeyPressInterval;
532 +    end;
533    end;
534   end;
535  
# Line 519 | Line 549 | end;
549  
550   procedure TIBLookupComboEditBox.SetItemIndex(const Val: integer);
551   begin
552 +  if Val > 0 then
553 +    FCurText := '';
554    inherited SetItemIndex(Val);
555    FLastKeyValue := KeyValue;
556   end;
# Line 541 | Line 573 | begin
573      ActiveChanged(nil);
574   end;
575  
576 + procedure TIBLookupComboEditBox.UpdateData(Sender: TObject);
577 + begin
578 +  inherited UpdateData(Sender);
579 +  if FCurText <> '' then
580 +    Text := FCurText + Text;
581 +  FModified := false;
582 + end;
583 +
584   constructor TIBLookupComboEditBox.Create(TheComponent: TComponent);
585   begin
586    inherited Create(TheComponent);
# Line 559 | Line 599 | begin
599    if assigned(FDataLink) then FDataLink.Free;
600    if assigned(FIBLookupControlLink) then FIBLookupControlLink.Free;
601    if assigned(FTimer) then FTimer.Free;
602 +  Application.RemoveAsyncCalls(self);
603    inherited Destroy;
604   end;
605  
# Line 572 | Line 613 | begin
613      FForceAutoComplete := false;
614    end;
615    CheckAndInsert;
616 +  FCurText := '';
617 +  if FModified then
618 +    Change; {ensure Update}
619    inherited EditingDone;
620   end;
621  

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