15 |
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* |
16 |
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* The Initial Developer of the Original Code is Tony Whyman. |
17 |
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* |
18 |
< |
* The Original Code is (C) 2011 Tony Whyman, MWA Software |
18 |
> |
* The Original Code is (C) 2015 Tony Whyman, MWA Software |
19 |
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* (http://www.mwasoftware.co.uk). |
20 |
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* |
21 |
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* All Rights Reserved. |
23 |
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* Contributor(s): ______________________________________. |
24 |
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* |
25 |
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*) |
26 |
+ |
|
27 |
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unit IBDynamicGrid; |
28 |
|
|
29 |
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{$mode objfpc}{$H+} |
32 |
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|
33 |
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uses |
34 |
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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 |
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type |
39 |
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{ |
57 |
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TOnUpdateSortOrder = procedure (Sender: TObject; ColIndex: integer; var OrderBy: string) of Object; |
58 |
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TKeyDownHandler = procedure (Sender: TObject; var Key: Word; Shift: TShiftState; var Done: boolean) of object; |
59 |
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|
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 |
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{ TDBDynamicGridColumn } |
61 |
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|
62 |
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TDBDynamicGridColumn = class(TColumn) |
92 |
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FListSource: TDataSource; |
93 |
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FOnAutoInsert: TAutoInsert; |
94 |
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FOnCanAutoInsert: TCanAutoInsert; |
95 |
+ |
FOnCloseUp: TNotifyEvent; |
96 |
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FOnDrawItem: TDrawItemEvent; |
97 |
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FOwner: TIBDynamicGridColumn; |
98 |
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FRelationName: string; |
119 |
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property Style: TComboBoxStyle read FStyle write FStyle default csDropDown; |
120 |
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property OnAutoInsert: TAutoInsert read FOnAutoInsert write FOnAutoInsert; |
121 |
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property OnCanAutoInsert: TCanAutoInsert read FOnCanAutoInsert write FOnCanAutoInsert; |
122 |
+ |
property OnCloseUp: TNotifyEvent read FOnCloseUp write FOnCloseUp; |
123 |
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property OnDrawItem: TDrawItemEvent read FOnDrawItem write FOnDrawItem; |
124 |
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end; |
125 |
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|
154 |
|
procedure WndProc(var TheMessage : TLMessage); override; |
155 |
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procedure CloseUp; override; |
156 |
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procedure KeyDown(var Key : Word; Shift : TShiftState); override; |
157 |
+ |
procedure Loaded; override; |
158 |
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procedure msg_GetValue(var Msg: TGridMessage); message GM_GETVALUE; |
159 |
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procedure msg_SetGrid(var Msg: TGridMessage); message GM_SETGRID; |
160 |
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procedure msg_SetValue(var Msg: TGridMessage); message GM_SETVALUE; |
180 |
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FWeHaveFocus: boolean; |
181 |
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FHidingEditorPanel: boolean; |
182 |
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FAllowHide: boolean; |
183 |
+ |
FMouseDown: boolean; |
184 |
+ |
function ActiveControl: TControl; |
185 |
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procedure DoShowEditorPanel(Data: PtrInt); |
186 |
|
procedure PositionTotals; |
187 |
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procedure KeyDownHandler(Sender: TObject; var Key: Word; Shift: TShiftState); |
188 |
+ |
procedure PerformEditorHide(Data: PtrInt); |
189 |
|
procedure SetEditorPanel(AValue: TWinControl); |
190 |
|
protected |
191 |
|
procedure ChangeBounds(ALeft, ATop, AWidth, AHeight: integer; KeepBase: boolean); override; |
215 |
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constructor Create(TheComponent: TComponent); override; |
216 |
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destructor Destroy ;override; |
217 |
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procedure ResizeColumns; |
218 |
+ |
property VisibleRowCount; |
219 |
|
published |
220 |
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property EditorPanel: TWinControl read FEditorPanel write SetEditorPanel; |
221 |
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property ExpandEditorPanelBelowRow: boolean read FExpandEditorPanelBelowRow write FExpandEditorPanelBelowRow; |
225 |
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property OnKeyDownHander: TKeyDownHandler read FOnKeyDownHander write FOnKeyDownHander; |
226 |
|
end; |
227 |
|
|
228 |
+ |
{TIBGridControlLink} |
229 |
+ |
|
230 |
+ |
TIBGridControlLink = class(TIBControlLink) |
231 |
+ |
private |
232 |
+ |
FOwner: TIBDynamicGrid; |
233 |
+ |
protected |
234 |
+ |
procedure UpdateSQL(Sender: TObject); override; |
235 |
+ |
public |
236 |
+ |
constructor Create(AOwner: TIBDynamicGrid); |
237 |
+ |
end; |
238 |
+ |
|
239 |
+ |
TLocationArray = array of variant; |
240 |
+ |
PLocationArray = ^TLocationArray; |
241 |
+ |
TOnRestorePosition = procedure(Sender: TObject; Location: PLocationArray) of object; |
242 |
+ |
|
243 |
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{ TIBDynamicGrid } |
244 |
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|
245 |
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TIBDynamicGrid = class(TDBDynamicGrid) |
246 |
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private |
247 |
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{ Private declarations } |
248 |
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FAllowColumnSort: boolean; |
249 |
< |
FDataLink: TDynamicGridDataLink; |
249 |
> |
FIBControlLink: TIBGridControlLink; |
250 |
|
FOnColumnHeaderClick: TOnColumnHeaderClick; |
251 |
+ |
FOnRestorePosition: TOnRestorePosition; |
252 |
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FOnUpdateSortOrder: TOnUpdateSortOrder; |
253 |
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FDefaultPositionAtEnd: boolean; |
254 |
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FDescending: boolean; |
256 |
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FLastColIndex: integer; |
257 |
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FIndexFieldNames: string; |
258 |
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FIndexFieldsList: TStringList; |
259 |
< |
FBookmark: array of variant; |
259 |
> |
FBookmark: TLocationArray; |
260 |
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FDBLookupCellEditor: TDBLookupCellEditor; |
261 |
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FActive: boolean; |
262 |
|
procedure ColumnHeaderClick(Index: integer); |
263 |
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function GetDataSource: TDataSource; |
264 |
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function GetEditorBorderStyle: TBorderStyle; |
265 |
+ |
procedure IBControlLinkChanged; |
266 |
|
procedure SetDataSource(AValue: TDataSource); |
267 |
|
procedure SetEditorBorderStyle(AValue: TBorderStyle); |
268 |
|
procedure ProcessColumns; |
269 |
|
procedure SetIndexFieldNames(AValue: string); |
270 |
|
procedure UpdateSQL(Sender: TObject; Parser: TSelectSQLParser); |
271 |
|
procedure UpdateSortColumn(Sender: TObject); |
272 |
< |
procedure DataSetScrolled(Sender: TObject); |
273 |
< |
procedure RestorePosition(Data: PtrInt); |
272 |
> |
procedure RestorePosition; |
273 |
> |
procedure SavePosition; |
274 |
|
procedure DoReOpen(Data: PtrInt); |
275 |
|
procedure SetupEditor(aEditor: TDBLookupCellEditor; aCol: integer); |
276 |
|
protected |
280 |
|
function CreateColumns: TGridColumns; override; |
281 |
|
procedure MouseDown(Button: TMouseButton; Shift:TShiftState; X,Y:Integer); override; |
282 |
|
procedure LinkActive(Value: Boolean); override; |
283 |
+ |
procedure MoveSelection; override; |
284 |
|
procedure Notification(AComponent: TComponent; Operation: TOperation); override; |
285 |
|
procedure UpdateActive; override; |
286 |
|
public |
298 |
|
property DefaultPositionAtEnd: boolean read FDefaultPositionAtEnd write FDefaultPositionAtEnd; |
299 |
|
property IndexFieldNames: string read FIndexFieldNames write SetIndexFieldNames; |
300 |
|
property OnColumnHeaderClick: TOnColumnHeaderClick read FOnColumnHeaderClick write FOnColumnHeaderClick; |
301 |
+ |
property OnRestorePosition: TOnRestorePosition read FOnRestorePosition write FOnRestorePosition; |
302 |
|
property OnUpdateSortOrder: TOnUpdateSortOrder read FOnUpdateSortOrder write FOnUpdateSortOrder; |
303 |
|
end; |
304 |
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|
305 |
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implementation |
306 |
|
|
307 |
< |
uses Math, IBQuery, IBCustomDataSet, LCLType; |
307 |
> |
uses Math, IBQuery, LCLType; |
308 |
> |
|
309 |
> |
{ TIBGridControlLink } |
310 |
> |
|
311 |
> |
constructor TIBGridControlLink.Create(AOwner: TIBDynamicGrid); |
312 |
> |
begin |
313 |
> |
inherited Create; |
314 |
> |
FOwner := AOwner; |
315 |
> |
end; |
316 |
> |
|
317 |
> |
procedure TIBGridControlLink.UpdateSQL(Sender: TObject); |
318 |
> |
begin |
319 |
> |
FOwner.UpdateSQL(self,TIBParserDataSet(Sender).Parser) |
320 |
> |
end; |
321 |
|
|
322 |
|
{ TDBLookupProperties } |
323 |
|
|
364 |
|
FResizing := true; |
365 |
|
try |
366 |
|
ColSum := 0; |
338 |
– |
for I := 0 to ColCount - 1 do |
339 |
– |
ColSum := ColSum + ColWidths[I]; |
367 |
|
|
368 |
< |
if Colsum <> ClientWidth then |
368 |
> |
if (ColCount = 1) and TDBDynamicGridColumn(Columns[0]).AutoSizeColumn then |
369 |
> |
Columns[0].Width := ClientWidth |
370 |
> |
else |
371 |
|
begin |
372 |
< |
ResizeColCount := 0; |
373 |
< |
for I := 0 to Columns.Count -1 do |
374 |
< |
if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn then |
375 |
< |
begin |
376 |
< |
Inc(ResizeColCount); |
377 |
< |
Colsum := Colsum + TDBDynamicGridColumn(Columns[I]).DesignWidth - Columns[I].Width; |
378 |
< |
Columns[I].Width := TDBDynamicGridColumn(Columns[I]).DesignWidth; |
379 |
< |
end; |
380 |
< |
|
381 |
< |
if (Colsum < ClientWidth) and (ResizeColCount > 0) then |
382 |
< |
begin |
383 |
< |
adjustment := (ClientWidth - ColSum) div ResizeColCount; |
384 |
< |
n := (ClientWidth - ColSum) mod ResizeColCount; |
385 |
< |
|
386 |
< |
for I := 0 to Columns.Count -1 do |
387 |
< |
if TDBDynamicGridColumn(Columns[I]).AutoSizeColumn then |
388 |
< |
begin |
389 |
< |
if I = 0 then |
390 |
< |
Columns[I].Width := Columns[I].Width + adjustment + n |
391 |
< |
else |
392 |
< |
Columns[I].Width := Columns[I].Width + adjustment; |
393 |
< |
end; |
394 |
< |
end; |
372 |
> |
for I := 0 to ColCount - 1 do |
373 |
> |
ColSum := ColSum + ColWidths[I]; |
374 |
> |
|
375 |
> |
if Colsum <> ClientWidth then |
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; |
400 |
> |
end; |
401 |
|
end; |
402 |
|
PositionTotals; |
403 |
|
UpdateEditorPanelBounds; |
409 |
|
procedure TDBDynamicGrid.DoEditorHide; |
410 |
|
begin |
411 |
|
inherited DoEditorHide; |
412 |
< |
if (FExpandedRow >= 0) and (FExpandedRow < RowCount) then |
413 |
< |
RowHeights[FExpandedRow] := DefaultRowHeight; |
414 |
< |
FExpandedRow := -1; |
415 |
< |
if CanFocus then SetFocus; |
416 |
< |
if assigned(FOnEditorPanelHide) then |
417 |
< |
OnEditorPanelHide(self); |
418 |
< |
DoOnResize; |
412 |
> |
if Editor = FEditorPanel then |
413 |
> |
begin |
414 |
> |
if FMouseDown then |
415 |
> |
Application.QueueAsyncCall(@PerformEditorHide,FExpandedRow) |
416 |
> |
else |
417 |
> |
PerformEditorHide(FExpandedRow); |
418 |
> |
FExpandedRow := -1; |
419 |
> |
end; |
420 |
|
end; |
421 |
|
|
422 |
|
procedure TDBDynamicGrid.DoEditorShow; |
423 |
|
begin |
424 |
+ |
if assigned(DataSource) and assigned(DataSource.DataSet) and |
425 |
+ |
DataSource.DataSet.Active then |
426 |
+ |
begin |
427 |
+ |
if (DataSource.DataSet.RecordCount = 0) and (DataSource.DataSet.State <> dsInsert) then |
428 |
+ |
DataSource.DataSet.Append |
429 |
+ |
end; |
430 |
|
if Editor = FEditorPanel then |
431 |
|
begin |
432 |
|
if ExpandEditorPanelBelowRow then |
439 |
|
FEditorPanel.PerformTab(true); {Select First Control} |
440 |
|
if assigned(FOnEditorPanelShow) then |
441 |
|
OnEditorPanelShow(self); |
442 |
+ |
if assigned(Editor) and Editor.Visible then |
443 |
+ |
Editor.SetFocus; |
444 |
|
end |
445 |
|
else |
446 |
|
inherited DoEditorShow; |
505 |
|
inherited KeyDown(Key, Shift); |
506 |
|
end; |
507 |
|
|
508 |
+ |
function TDBDynamicGrid.ActiveControl: TControl; |
509 |
+ |
var AParent: TWinControl; |
510 |
+ |
begin |
511 |
+ |
Result := nil; |
512 |
+ |
AParent := Parent; |
513 |
+ |
while (AParent <> nil) and not (AParent is TCustomForm) do |
514 |
+ |
AParent := AParent.Parent; |
515 |
+ |
if (AParent <> nil) and (AParent is TCustomForm)then |
516 |
+ |
Result := TCustomForm(AParent).ActiveControl; |
517 |
+ |
end; |
518 |
+ |
|
519 |
|
procedure TDBDynamicGrid.DoShowEditorPanel(Data: PtrInt); |
520 |
|
begin |
521 |
|
if AppDestroying in Application.Flags then Exit; |
547 |
|
procedure TDBDynamicGrid.KeyDownHandler(Sender: TObject; var Key: Word; |
548 |
|
Shift: TShiftState); |
549 |
|
var Done: boolean; |
550 |
+ |
AControl: TControl; |
551 |
|
begin |
552 |
|
if Visible and assigned(FEditorPanel) and FEditorPanel.Visible and FWeHaveFocus then |
553 |
|
begin |
554 |
|
Done := false; |
555 |
+ |
AControl := ActiveControl; |
556 |
+ |
if (AControl <> nil) and (AControl is TCustomComboBox) |
557 |
+ |
and ((Key in [VK_UP,VK_DOWN]) or |
558 |
+ |
(TCustomComboBox(AControl).DroppedDown and (Key = VK_RETURN)) or |
559 |
+ |
((TCustomComboBox(AControl).Text <> '') and (Key = VK_ESCAPE))) then |
560 |
+ |
Exit; {ignore these keys if we are in a combobox} |
561 |
+ |
|
562 |
+ |
if (AControl <> nil) and (AControl is TCustomMemo) |
563 |
+ |
and (Key in [VK_RETURN,VK_UP,VK_DOWN]) then Exit; {Ignore Return in a CustomMemo} |
564 |
+ |
|
565 |
+ |
if (AControl <> nil) and (AControl is TCustomGrid) |
566 |
+ |
and (Key in [VK_RETURN,VK_UP,VK_DOWN,VK_TAB]) then Exit; {Ignore Return in a CustomMemo} |
567 |
+ |
|
568 |
|
if assigned(FOnKeyDownHander) then |
569 |
|
OnKeyDownHander(Sender,Key,Shift,Done); |
570 |
|
if Done then Exit; |
587 |
|
end |
588 |
|
end; |
589 |
|
|
590 |
+ |
procedure TDBDynamicGrid.PerformEditorHide(Data: PtrInt); |
591 |
+ |
var ExpandedRow: integer; |
592 |
+ |
begin |
593 |
+ |
if AppDestroying in Application.Flags then Exit; |
594 |
+ |
ExpandedRow := integer(Data); |
595 |
+ |
if (ExpandedRow >= 0) and (ExpandedRow < RowCount) then |
596 |
+ |
RowHeights[ExpandedRow] := DefaultRowHeight; |
597 |
+ |
if CanFocus then SetFocus; |
598 |
+ |
DoOnResize; |
599 |
+ |
ResetSizes; |
600 |
+ |
DoOnChangeBounds; |
601 |
+ |
if assigned(FOnEditorPanelHide) then |
602 |
+ |
OnEditorPanelHide(self); |
603 |
+ |
end; |
604 |
+ |
|
605 |
|
procedure TDBDynamicGrid.SetEditorPanel(AValue: TWinControl); |
606 |
|
begin |
607 |
|
if FEditorPanel = AValue then Exit; |
636 |
|
inherited Loaded; |
637 |
|
if assigned(FEditorPanel) and not (csDesigning in ComponentState)then |
638 |
|
FEditorPanel.Visible := false; |
639 |
< |
DoGridResize |
639 |
> |
if Visible then |
640 |
> |
DoGridResize |
641 |
|
end; |
642 |
|
|
643 |
|
procedure TDBDynamicGrid.DoOnResize; |
661 |
|
Y: Integer); |
662 |
|
var Coord: TGridCoord; |
663 |
|
begin |
664 |
< |
inherited MouseDown(Button, Shift, X, Y); |
664 |
> |
FMouseDown := true; |
665 |
> |
try |
666 |
> |
inherited MouseDown(Button, Shift, X, Y); |
667 |
> |
finally |
668 |
> |
FMouseDown := false; |
669 |
> |
end; |
670 |
|
|
671 |
|
Coord := MouseCoord(X,Y); |
672 |
|
if (Coord.X = 0) and (Coord.Y > 0) then |
692 |
|
inherited UpdateActive; |
693 |
|
|
694 |
|
if not (csLoading in ComponentState) and assigned(DataLink) and |
695 |
+ |
assigned(FEditorPanel) and not FEditorPanel.Visible and |
696 |
|
assigned(DataLink.DataSet) and (DataLink.DataSet.State = dsInsert) then |
697 |
|
Application.QueueAsyncCall(@DoShowEditorPanel,0); |
698 |
|
end; |
725 |
|
procedure TDBDynamicGrid.HideEditorPanel; |
726 |
|
begin |
727 |
|
if Editor = FEditorPanel then |
728 |
< |
EditorMode := false; |
728 |
> |
EditorMode := false; |
729 |
|
end; |
730 |
|
|
731 |
|
procedure TDBDynamicGrid.ShowEditorPanel; |
732 |
|
begin |
733 |
< |
if csDesigning in ComponentState then Exit; |
733 |
> |
if (csDesigning in ComponentState) or |
734 |
> |
(DataSource = nil) or (DataSource.DataSet = nil) |
735 |
> |
or ((DataSource.DataSet.RecordCount = 0) and (DataSource.DataSet.State <> dsInsert)) then |
736 |
> |
Exit; |
737 |
|
Editor := FEditorPanel; |
738 |
|
EditorMode := true; |
739 |
|
end; |
792 |
|
begin |
793 |
|
UpdateData(nil); {Force Record Update} |
794 |
|
if FGrid<>nil then |
795 |
< |
(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, Text); |
795 |
> |
Begin |
796 |
> |
(FGrid as TIBDynamicGrid).EditorTextChanged(FCol, FRow, Trim(Text)); |
797 |
> |
(FGrid as TIBDynamicGrid).UpdateData; |
798 |
> |
end; |
799 |
|
inherited CloseUp; |
800 |
|
end; |
801 |
|
|
807 |
|
inherited KeyDown(Key, Shift); |
808 |
|
end; |
809 |
|
|
810 |
+ |
procedure TDBLookupCellEditor.Loaded; |
811 |
+ |
begin |
812 |
+ |
inherited Loaded; |
813 |
+ |
Text := ''; |
814 |
+ |
end; |
815 |
+ |
|
816 |
|
procedure TDBLookupCellEditor.msg_GetValue(var Msg: TGridMessage); |
817 |
|
begin |
818 |
|
CheckAndInsert; |
833 |
|
FCol := Msg.Col; |
834 |
|
FRow := Msg.Row; |
835 |
|
FEditText := Msg.Value; |
733 |
– |
SelStart := Length(Text); |
836 |
|
TIBDynamicGrid(FGrid).SetupEditor(self,FCol); |
837 |
|
end; |
838 |
|
|
881 |
|
Editor.OnAutoInsert := OnAutoInsert; |
882 |
|
Editor.OnCanAutoInsert := OnCanAutoInsert; |
883 |
|
Editor.OnDrawItem := OnDrawItem; |
884 |
+ |
Editor.OnCloseUp := OnCloseUp; |
885 |
|
|
886 |
|
{Setup Data Links} |
887 |
|
if KeyField <> '' then |
907 |
|
Editor.DataSource := TDBGrid(Grid).DataSource; |
908 |
|
end; |
909 |
|
Editor.Text := Editor.FEditText; |
910 |
+ |
Editor.SelStart := Length(Editor.Text); |
911 |
|
end; |
912 |
|
|
913 |
|
procedure TIBDynamicGridColumn.SetInitialSortColumn(AValue: boolean); |
934 |
|
inherited Destroy; |
935 |
|
end; |
936 |
|
|
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 |
– |
|
937 |
|
|
938 |
|
{ TIBDynamicGrid } |
939 |
|
|
977 |
|
procedure TIBDynamicGrid.SetDataSource(AValue: TDataSource); |
978 |
|
begin |
979 |
|
inherited DataSource := AValue; |
980 |
< |
FDataLink.DataSource := AValue; |
980 |
> |
IBControlLinkChanged; |
981 |
|
end; |
982 |
|
|
983 |
|
procedure TIBDynamicGrid.SetEditorBorderStyle(AValue: TBorderStyle); |
1016 |
|
var OrderBy: string; |
1017 |
|
FieldPosition: integer; |
1018 |
|
begin |
1019 |
< |
if (Sender = TObject(FDataLink)) and assigned(DataSource) and assigned(DataSource.DataSet) |
1019 |
> |
if assigned(DataSource) and assigned(DataSource.DataSet) |
1020 |
|
and (DataSource.DataSet is TIBCustomDataSet) then |
1021 |
|
begin |
1022 |
+ |
if (FLastColIndex < 0) or (FLastColIndex >= Columns.Count) then Exit; |
1023 |
|
FieldPosition := Parser.GetFieldPosition(Columns[FLastColIndex].FieldName); |
1024 |
< |
if FieldPosition = 0 then Exit; |
1025 |
< |
|
1026 |
< |
if Descending then |
1027 |
< |
Parser.OrderByClause := IntToStr(FieldPosition) + ' desc' |
1028 |
< |
else |
1029 |
< |
Parser.OrderByClause := IntToStr(FieldPosition) + ' asc'; |
1024 |
> |
if FieldPosition > 0 then |
1025 |
> |
begin |
1026 |
> |
if Descending then |
1027 |
> |
Parser.OrderByClause := IntToStr(FieldPosition) + ' desc' |
1028 |
> |
else |
1029 |
> |
Parser.OrderByClause := IntToStr(FieldPosition) + ' asc'; |
1030 |
> |
end; |
1031 |
|
|
1032 |
|
if assigned(FOnUpdateSortOrder) then |
1033 |
|
begin |
1050 |
|
|
1051 |
|
end; |
1052 |
|
|
1053 |
< |
procedure TIBDynamicGrid.DataSetScrolled(Sender: TObject); |
976 |
< |
var i: integer; |
977 |
< |
F: TField; |
1053 |
> |
procedure TIBDynamicGrid.RestorePosition; |
1054 |
|
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); |
989 |
– |
begin |
990 |
– |
if AppDestroying in Application.Flags then Exit; |
991 |
– |
|
1055 |
|
if assigned(DataSource) and assigned(DataSource.DataSet) and DataSource.DataSet.Active then |
1056 |
|
begin |
1057 |
+ |
if assigned(FOnRestorePosition) then |
1058 |
+ |
OnRestorePosition(self,@FBookmark); |
1059 |
|
if (Length(FBookmark) > 0) and |
1060 |
|
DataSource.DataSet.Locate(FIndexFieldNames,FBookmark,[]) then Exit; |
1061 |
|
|
1064 |
|
end; |
1065 |
|
end; |
1066 |
|
|
1067 |
+ |
procedure TIBDynamicGrid.SavePosition; |
1068 |
+ |
var i: integer; |
1069 |
+ |
F: TField; |
1070 |
+ |
begin |
1071 |
+ |
if FIndexFieldsList = nil then Exit; |
1072 |
+ |
|
1073 |
+ |
SetLength(FBookmark,FIndexFieldsList.Count); |
1074 |
+ |
for i := 0 to FIndexFieldsList.Count - 1 do |
1075 |
+ |
begin |
1076 |
+ |
F := DataSource.DataSet.FindField(FIndexFieldsList[i]); |
1077 |
+ |
if assigned(F) then |
1078 |
+ |
FBookmark[i] := F.AsVariant; |
1079 |
+ |
end; |
1080 |
+ |
end; |
1081 |
+ |
|
1082 |
|
procedure TIBDynamicGrid.DoReOpen(Data: PtrInt); |
1083 |
|
begin |
1084 |
|
DataSource.DataSet.Active := true; |
1085 |
|
end; |
1086 |
|
|
1087 |
+ |
procedure TIBDynamicGrid.IBControlLinkChanged; |
1088 |
+ |
begin |
1089 |
+ |
if (DataSource <> nil) and (DataSource.DataSet <> nil) and (DataSource.DataSet is TIBParserDataSet) then |
1090 |
+ |
FIBControlLink.IBDataSet := TIBCustomDataSet(DataSource.DataSet) |
1091 |
+ |
else |
1092 |
+ |
FIBControlLink.IBDataSet := nil; |
1093 |
+ |
end; |
1094 |
+ |
|
1095 |
|
procedure TIBDynamicGrid.SetupEditor(aEditor: TDBLookupCellEditor; aCol: integer |
1096 |
|
); |
1097 |
|
var C: TIBDynamicGridColumn; |
1098 |
|
begin |
1099 |
|
C := ColumnFromGridColumn(aCol) as TIBDynamicGridColumn; |
1100 |
< |
C.SetupEditor(aEditor); |
1100 |
> |
if (c <> nil) then |
1101 |
> |
C.SetupEditor(aEditor); |
1102 |
|
end; |
1103 |
|
|
1104 |
|
procedure TIBDynamicGrid.DoEditorHide; |
1114 |
|
procedure TIBDynamicGrid.Loaded; |
1115 |
|
begin |
1116 |
|
inherited Loaded; |
1117 |
+ |
IBControlLinkChanged; |
1118 |
|
ProcessColumns; |
1119 |
|
end; |
1120 |
|
|
1144 |
|
AllowOutboundEvents := false; |
1145 |
|
try |
1146 |
|
Coord := MouseCoord(X,Y); |
1147 |
< |
if AllowColumnSort and (Coord.X <> -1) and |
1147 |
> |
if AllowColumnSort and (Coord.X <> -1) and (FixedRows > 0) and |
1148 |
|
(Coord.Y = 0) and (MouseCoord(X+5,Y).X = Coord.X) {not on boundary} |
1149 |
|
and (MouseCoord(X-5,Y).X = Coord.X) then |
1150 |
|
ColumnHeaderClick(Coord.X-1); |
1153 |
|
end; |
1154 |
|
end; |
1155 |
|
|
1156 |
+ |
procedure TIBDynamicGrid.MoveSelection; |
1157 |
+ |
begin |
1158 |
+ |
inherited MoveSelection; |
1159 |
+ |
SavePosition; |
1160 |
+ |
end; |
1161 |
+ |
|
1162 |
|
procedure TIBDynamicGrid.LinkActive(Value: Boolean); |
1163 |
|
begin |
1164 |
+ |
IBControlLinkChanged; |
1165 |
|
inherited LinkActive(Value); |
1166 |
|
if (FActive <> Value) and Value then |
1167 |
< |
Application.QueueAsyncCall(@RestorePosition,0); |
1167 |
> |
RestorePosition; |
1168 |
|
FActive := Value |
1169 |
|
end; |
1170 |
|
|
1173 |
|
begin |
1174 |
|
inherited Notification(AComponent, Operation); |
1175 |
|
if (Operation = opRemove) and |
1176 |
< |
(FDataLink <> nil) and (AComponent = DataSource) then DataSource := nil; |
1176 |
> |
(FIBControlLink <> nil) and (AComponent = DataSource) then FIBControlLink.IBDataSet := nil; |
1177 |
|
end; |
1178 |
|
|
1179 |
|
procedure TIBDynamicGrid.UpdateActive; |
1180 |
|
begin |
1181 |
|
inherited UpdateActive; |
1182 |
< |
if assigned(FDataLink) and assigned(FDataLink.DataSet) and |
1183 |
< |
FDataLink.DataSet.Active and (FDataLink.DataSet.State = dsInsert) then |
1184 |
< |
DataSetScrolled(nil); |
1182 |
> |
if assigned(DataLink) and assigned(DataLink.DataSet) and |
1183 |
> |
DataLink.DataSet.Active and (DataLink.DataSet.State = dsInsert) then |
1184 |
> |
SavePosition; |
1185 |
|
end; |
1186 |
|
|
1187 |
|
constructor TIBDynamicGrid.Create(TheComponent: TComponent); |
1188 |
|
begin |
1189 |
|
inherited Create(TheComponent); |
1190 |
|
FAllowColumnSort := true; |
1191 |
< |
FDataLink := TDynamicGridDataLink.Create(self); |
1191 |
> |
FIBControlLink := TIBGridControlLink.Create(self); |
1192 |
|
FIndexFieldsList := TStringList.Create; |
1193 |
|
FIndexFieldsList.Delimiter := ';'; |
1194 |
|
FIndexFieldsList.StrictDelimiter := true; |
1200 |
|
|
1201 |
|
destructor TIBDynamicGrid.Destroy; |
1202 |
|
begin |
1203 |
< |
if assigned(FDataLink) then FDataLink.Free; |
1203 |
> |
if assigned(FIBControlLink) then FIBControlLink.Free; |
1204 |
|
if assigned(FIndexFieldsList) then FIndexFieldsList.Free; |
1205 |
|
if assigned(FDBLookupCellEditor) then FDBLookupCellEditor.Free; |
1206 |
|
inherited Destroy; |