forked from transmission-remote-gui/transgui
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathvargrid.pas
1471 lines (1360 loc) · 41.9 KB
/
vargrid.pas
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
{*************************************************************************************
This file is part of Transmission Remote GUI.
Copyright (c) 2008-2019 by Yury Sidorov and Transmission Remote GUI working group.
Transmission Remote GUI is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Transmission Remote GUI is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Transmission Remote GUI; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*************************************************************************************}
unit VarGrid;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Grids, VarList, Graphics, Controls, LMessages, Forms, StdCtrls, LCLType, ExtCtrls,LazUTF8, LCLVersion;
type
TVarGrid = class;
TCellOption = (coDrawCheckBox, coDrawTreeButton);
TCellOptions = set of TCellOption;
TCellAttributes = record
Text: string;
ImageIndex: integer;
Indent: integer;
Options: TCellOptions;
State: TCheckBoxState;
Expanded: boolean;
end;
TOnCellAttributes = procedure (Sender: TVarGrid; ACol, ARow, ADataCol: integer; AState: TGridDrawState; var CellAttribs: TCellAttributes) of object;
TOnDrawCellEvent = procedure (Sender: TVarGrid; ACol, ARow, ADataCol: integer; AState: TGridDrawState; const R: TRect; var ADefaultDrawing: boolean) of object;
TOnSortColumnEvent = procedure (Sender: TVarGrid; var ASortCol: integer) of object;
TCellNotifyEvent = procedure (Sender: TVarGrid; ACol, ARow, ADataCol: integer) of object;
TOnQuickSearch = procedure (Sender: TVarGrid; var SearchText: string; var ARow: integer) of object;
{ TVarGridStringEditor }
TVarGridStringEditor = class(TStringCellEditor)
protected
procedure msg_SetGrid(var Msg: TGridMessage); message GM_SETGRID;
procedure msg_SetBounds(var Msg: TGridMessage); message GM_SETBOUNDS;
end;
{ TVarGrid }
TVarGrid = class(TCustomDrawGrid)
private
FFirstVisibleColumn: integer;
FHideSelection: boolean;
FImages: TImageList;
FItems: TVarList;
FItemsChanging: boolean;
FColumnsMap: array of integer;
FMultiSelect: boolean;
FOnAfterSort: TNotifyEvent;
FOnCellAttributes: TOnCellAttributes;
FOnCheckBoxClick: TCellNotifyEvent;
FOnDrawCell: TOnDrawCellEvent;
FOnEditorHide: TNotifyEvent;
FOnEditorShow: TNotifyEvent;
FOnQuickSearch: TOnQuickSearch;
FOnTreeButtonClick: TCellNotifyEvent;
FSelCount: integer;
FAnchor: integer;
FSortColumn: integer;
FOnSortColumn: TOnSortColumnEvent;
FRow: integer;
FHintCell: TPoint;
FCurSearch: string;
FSearchTimer: TTimer;
FOldOpt: TGridOptions;
FNoDblClick: boolean;
FStrEditor: TVarGridStringEditor;
function GetRow: integer;
function GetRowSelected(RowIndex: integer): boolean;
function GetRowVisible(RowIndex: integer): boolean;
function GetSortOrder: TSortOrder;
procedure ItemsChanged(Sender: TObject);
procedure SetHideSelection(const AValue: boolean);
procedure SetRow(const AValue: integer);
procedure SetRowSelected(RowIndex: integer; const AValue: boolean);
procedure SetRowVisible(RowIndex: integer; const AValue: boolean);
procedure SetSortColumn(const AValue: integer);
procedure SetSortOrder(const AValue: TSortOrder);
procedure UpdateColumnsMap;
procedure UpdateSelCount;
procedure SelectRange(OldRow, NewRow: integer);
procedure CMHintShow(var Message: TCMHintShow); message CM_HINTSHOW;
function CellNeedsCheckboxBitmaps(const aCol,aRow: Integer): boolean;
procedure DrawCellCheckboxBitmaps(const aCol,aRow: Integer; const aRect: TRect);
function FindRow(const SearchStr: string; StartRow: integer): integer;
procedure DoSearchTimer(Sender: TObject);
protected
procedure SizeChanged(OldColCount, OldRowCount: Integer); override;
procedure DrawCell(aCol,aRow: Integer; aRect: TRect; aState:TGridDrawState); override;
procedure ColRowMoved(IsColumn: Boolean; FromIndex,ToIndex: Integer); override;
procedure PrepareCanvas(aCol,aRow: Integer; aState:TGridDrawState); override;
procedure MouseDown(Button: TMouseButton; Shift:TShiftState; X,Y:Integer); override;
procedure MouseMove(Shift: TShiftState; X,Y: Integer);override;
procedure KeyDown(var Key : Word; Shift : TShiftState); override;
procedure UTF8KeyPress(var UTF8Key: TUTF8Char); override;
procedure DoOnCellAttributes(ACol, ARow, ADataCol: integer; AState: TGridDrawState; var CellAttribs: TCellAttributes);
procedure HeaderClick(IsColumn: Boolean; index: Integer); override;
procedure AutoAdjustColumn(aCol: Integer); override;
procedure VisualChange; override;
procedure DrawColumnText(aCol,aRow: Integer; aRect: TRect; aState:TGridDrawState); override;
procedure DblClick; override;
procedure Click; override;
procedure GetCheckBoxState(const aCol, aRow:Integer; var aState:TCheckboxState); override;
procedure SetCheckboxState(const aCol, aRow:Integer; const aState: TCheckboxState); override;
procedure SetupCell(ACol, ARow: integer; AState: TGridDrawState; out CellAttribs: TCellAttributes);
procedure DoOnCheckBoxClick(ACol, ARow: integer);
procedure DoOnTreeButtonClick(ACol, ARow: integer);
function DoMouseWheelDown(Shift: TShiftState; MousePos: TPoint): Boolean; override;
function DoMouseWheelUp(Shift: TShiftState; MousePos: TPoint): Boolean; override;
function DoMouseWheel(Shift: TShiftState; WheelDelta: Integer; MousePos: TPoint): Boolean; override;
procedure DrawRow(aRow: Integer); override;
function GetCells(ACol, ARow: Integer): string; override;
function GetEditText(ACol, ARow: Longint): string; override;
procedure SetEditText(ACol, ARow: Longint; const Value: string); override;
procedure DoEditorShow; override;
procedure DoEditorHide; override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
function EditorByStyle(Style: TColumnButtonStyle): TWinControl; override;
procedure RemoveSelection;
procedure SelectAll;
procedure Sort; reintroduce;
function ColToDataCol(ACol: integer): integer;
function DataColToCol(ADataCol: integer): integer;
procedure EnsureSelectionVisible;
procedure EnsureRowVisible(ARow: integer);
procedure BeginUpdate; reintroduce;
procedure EndUpdate(aRefresh: boolean = true); reintroduce;
procedure EditCell(ACol, ARow: integer);
property Items: TVarList read FItems;
property RowSelected[RowIndex: integer]: boolean read GetRowSelected write SetRowSelected;
property RowVisible[RowIndex: integer]: boolean read GetRowVisible write SetRowVisible;
property SelCount: integer read FSelCount;
property Row: integer read GetRow write SetRow;
property FirstVisibleColumn: integer read FFirstVisibleColumn;
published
property Align;
property AlternateColor;
property Anchors;
property BorderSpacing;
property BorderStyle;
property Color;
property Columns;
property Constraints;
property DragCursor;
property DragKind;
property DragMode;
property Enabled;
property FixedCols;
property FixedRows;
property Font;
property GridLineWidth;
property Options;
property ParentColor default false;
property ParentFont;
property ParentShowHint default false;
property PopupMenu;
property RowCount;
property ScrollBars;
property ShowHint default True;
property TabOrder;
property TabStop;
property TitleFont;
property TitleImageList;
property TitleStyle default tsNative;
property Visible;
property OnClick;
property OnDblClick;
property OnEnter;
property OnExit;
property OnHeaderClick;
property OnHeaderSized;
property OnKeyDown;
property OnKeyPress;
property OnKeyUp;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnMouseWheelDown;
property OnMouseWheelUp;
property OnContextPopup;
property OnDragDrop;
property OnDragOver;
property OnEndDock;
property OnEndDrag;
property OnStartDock;
property OnStartDrag;
property OnUTF8KeyPress;
property OnResize;
property OnGetEditText;
property OnSetEditText;
property Images: TImageList read FImages write FImages;
property MultiSelect: boolean read FMultiSelect write FMultiSelect default False;
property SortColumn: integer read FSortColumn write SetSortColumn default -1;
property SortOrder: TSortOrder read GetSortOrder write SetSortOrder default soAscending;
property HideSelection: boolean read FHideSelection write SetHideSelection default False;
property OnCellAttributes: TOnCellAttributes read FOnCellAttributes write FOnCellAttributes;
property OnDrawCell: TOnDrawCellEvent read FOnDrawCell write FOnDrawCell;
property OnSortColumn: TOnSortColumnEvent read FOnSortColumn write FOnSortColumn;
property OnAfterSort: TNotifyEvent read FOnAfterSort write FOnAfterSort;
property OnCheckBoxClick: TCellNotifyEvent read FOnCheckBoxClick write FOnCheckBoxClick;
property OnTreeButtonClick: TCellNotifyEvent read FOnTreeButtonClick write FOnTreeButtonClick;
property OnQuickSearch: TOnQuickSearch read FOnQuickSearch write FOnQuickSearch;
property OnEditorShow: TNotifyEvent read FOnEditorShow write FOnEditorShow;
property OnEditorHide: TNotifyEvent read FOnEditorHide write FOnEditorHide;
end;
procedure Register;
implementation
uses Variants, Math, GraphType, lclintf, Themes, types, lclproc
{$ifdef LCLcarbon} , carbonproc {$endif LCLcarbon};
const
roSelected = 1;
roCurRow = 2;
procedure Register;
begin
RegisterComponents('TransGUI', [TVarGrid]);
end;
{ TVarGridStringEditor }
procedure TVarGridStringEditor.msg_SetGrid(var Msg: TGridMessage);
begin
inherited;
Msg.Options:=Msg.Options and not EO_AUTOSIZE;
end;
procedure TVarGridStringEditor.msg_SetBounds(var Msg: TGridMessage);
var
ca: TCellAttributes;
begin
with Msg do begin
TVarGrid(Grid).SetupCell(Col, Row, [], ca);
with CellRect do begin
Inc(Left, ca.Indent);
if coDrawTreeButton in ca.Options then
Inc(Left, Bottom - Top);
if coDrawCheckBox in ca.Options then
Inc(Left, Bottom - Top);
if (ca.ImageIndex <> -1) and Assigned(TVarGrid(Grid).Images) then
Inc(Left, TVarGrid(Grid).Images.Width + 2);
Dec(Left, 3);
Dec(Top, 1);
SetBounds(Left, Top, Right-Left, Bottom-Top);
end;
end;
end;
{ TVarGrid }
procedure TVarGrid.ItemsChanged(Sender: TObject);
var
i, OldRows, OldCols: integer;
pt: TPoint;
begin
FItemsChanging:=True;
try
Perform(CM_MouseLeave, 0, 0); // Hack to call ResetHotCell to workaround a bug
OldRows:=RowCount;
OldCols:=Columns.Count;
i:=FItems.RowCnt + FixedRows;
if (FRow = -1) and (inherited Row >= i) and (i > FixedRows) then
inherited Row:=i - 1;
RowCount:=i;
if FRow <> -1 then begin
Row:=FRow;
FRow:=-1;
end;
UpdateSelCount;
while Columns.Count > FItems.ColCnt do
Columns.Delete(Columns.Count - 1);
if Columns.Count <> FItems.ColCnt then begin
Columns.BeginUpdate;
try
for i:=Columns.Count to FItems.ColCnt - 1 do
Columns.Add;
finally
Columns.EndUpdate;
end;
end;
if (OldRows <> RowCount) or (OldCols <> Columns.Count) then begin
if Parent <> nil then
HandleNeeded;
ResetSizes;
end
else
Invalidate;
pt:=ScreenToClient(Mouse.CursorPos);
if PtInRect(ClientRect, pt) then
MouseMove([], pt.x, pt.y);
finally
FItemsChanging:=False;
end;
end;
procedure TVarGrid.SetHideSelection(const AValue: boolean);
begin
if FHideSelection=AValue then exit;
FHideSelection:=AValue;
Invalidate;
end;
procedure TVarGrid.SetRow(const AValue: integer);
var
i, r: integer;
begin
if FItems.IsUpdating then
FRow:=AValue
else begin
r:=AValue + FixedRows;
if r <> inherited Row then begin
i:=LeftCol;
inherited Row:=r;
LeftCol:=i;
end;
end;
end;
function TVarGrid.GetRowSelected(RowIndex: integer): boolean;
begin
Result:=LongBool(FItems.RowOptions[RowIndex] and roSelected);
end;
function TVarGrid.GetRowVisible(RowIndex: integer): boolean;
begin
Result:=RowHeights[RowIndex + FixedRows] > 0;
end;
function TVarGrid.GetSortOrder: TSortOrder;
begin
Result:=inherited SortOrder;
end;
function TVarGrid.GetRow: integer;
begin
if FItems.IsUpdating and (FRow <> -1) then
Result:=FRow
else begin
Result:=inherited Row - FixedRows;
end;
end;
procedure TVarGrid.SetRowSelected(RowIndex: integer; const AValue: boolean);
var
i, j: integer;
begin
i:=FItems.RowOptions[RowIndex];
if AValue then begin
j:=i or roSelected;
if j <> i then
Inc(FSelCount);
end
else begin
j:=i and not roSelected;
if j <> i then
Dec(FSelCount);
end;
FItems.RowOptions[RowIndex]:=j;
InvalidateRow(RowIndex + FixedRows);
if FSelCount <= 1 then
InvalidateRow(inherited Row);
end;
procedure TVarGrid.SetRowVisible(RowIndex: integer; const AValue: boolean);
begin
if AValue then
RowHeights[RowIndex + FixedRows]:=DefaultRowHeight
else
RowHeights[RowIndex + FixedRows]:=0;
end;
procedure TVarGrid.SetSortColumn(const AValue: integer);
begin
if FSortColumn=AValue then exit;
FSortColumn:=AValue;
if FSortColumn >= 0 then
Options:=Options + [goHeaderPushedLook, goHeaderHotTracking]
else
Options:=Options - [goHeaderPushedLook, goHeaderHotTracking];
Sort;
end;
procedure TVarGrid.SetSortOrder(const AValue: TSortOrder);
begin
if SortOrder = AValue then exit;
inherited SortOrder:=AValue;
Sort;
end;
procedure TVarGrid.UpdateColumnsMap;
var
i, j: integer;
begin
FFirstVisibleColumn:=-1;
SetLength(FColumnsMap, Columns.Count);
j:=0;
for i:=0 to Columns.Count - 1 do
with Columns[i] do begin
if (FFirstVisibleColumn < 0) and Visible then
FFirstVisibleColumn:=i;
FColumnsMap[j]:=ID - 1;
Inc(j);
end;
SetLength(FColumnsMap, j);
end;
procedure TVarGrid.UpdateSelCount;
var
i: integer;
begin
FSelCount:=0;
for i:=0 to FItems.Count - 1 do
if RowSelected[i] then
Inc(FSelCount);
end;
procedure TVarGrid.SelectRange(OldRow, NewRow: integer);
var
dir: integer;
sel: boolean;
begin
if OldRow = NewRow then
exit;
if FAnchor = -1 then
FAnchor:=OldRow;
dir:=Sign(NewRow - OldRow);
if Sign(FAnchor - OldRow) <> Sign(FAnchor - NewRow) then
while OldRow <> FAnchor do begin
RowSelected[OldRow]:=False;
Inc(OldRow, dir);
end;
sel:=Abs(FAnchor - OldRow) < Abs(FAnchor - NewRow);
while OldRow <> NewRow do begin
RowSelected[OldRow]:=sel;
Inc(OldRow, dir);
end;
RowSelected[NewRow]:=True;
end;
procedure TVarGrid.CMHintShow(var Message: TCMHintShow);
var
ca: TCellAttributes;
pt: TPoint;
wd: integer;
R: TRect;
begin
with Message.HintInfo^ do begin
pt:=MouseToCell(CursorPos);
if (pt.x >= FixedCols) and (pt.y >= 0) then begin
R:=CellRect(pt.x, pt.y);
if PtInRect(R, CursorPos) then begin
SetupCell(pt.x, pt.y, [], ca);
if ca.Text <> '' then begin
wd:=Canvas.TextWidth(ca.Text);
Inc(R.Left, ca.Indent);
if coDrawTreeButton in ca.Options then
Inc(R.Left, R.Bottom - R.Top);
if coDrawCheckBox in ca.Options then
Inc(R.Left, R.Bottom - R.Top);
if (ca.ImageIndex <> -1) and Assigned(FImages) then
Inc(R.Left, FImages.Width + 2);
if (R.Right <= R.Left) or (R.Right - R.Left < wd + 5) then begin
HintStr:=ca.Text;
R.Top:=(R.Top + R.Bottom - Canvas.TextHeight(ca.Text)) div 2 - 4;
Dec(R.Left);
HintPos:=ClientToScreen(R.TopLeft);
end;
FHintCell:=pt;
end
else
Message.Result:=1;
end
else
Message.Result:=1;
end;
end;
end;
function TVarGrid.CellNeedsCheckboxBitmaps(const aCol, aRow: Integer): boolean;
var
C: TGridColumn;
begin
Result := false;
if (aRow>=FixedRows) and Columns.Enabled then begin
C := ColumnFromGridColumn(aCol);
result := (C<>nil) and (C.ButtonStyle=cbsCheckboxColumn)
end;
end;
procedure TVarGrid.DrawCellCheckboxBitmaps(const aCol, aRow: Integer; const aRect: TRect);
var
AState: TCheckboxState;
begin
AState := cbUnchecked;
GetCheckBoxState(aCol, aRow, aState);
DrawGridCheckboxBitmaps(aCol, aRow, aRect, aState);
end;
function TVarGrid.FindRow(const SearchStr: string; StartRow: integer): integer;
var
i, c: integer;
s, ss: string;
v: variant;
begin
Result:=-1;
if Columns.Count = 0 then
exit;
c:=SortColumn;
if (c < 0) or (c >= Items.ColCnt) then
c:=0;
ss:= LazUTF8.UTF8UpperCase(SearchStr);
for i:=StartRow to Items.Count - 1 do begin
v:=Items[c, i];
if VarIsNull(v) or VarIsEmpty(v) then
s:= ''
else
s:= LazUTF8.UTF8UpperCase(UTF8Encode(widestring(v)));
if Copy(s, 1, Length(ss)) = ss then begin
Result:=i;
break;
end;
end;
end;
procedure TVarGrid.DoSearchTimer(Sender: TObject);
begin
FSearchTimer.Enabled:=False;
FCurSearch:='';
end;
procedure TVarGrid.SizeChanged(OldColCount, OldRowCount: Integer);
begin
if not FItemsChanging and (FItems <> nil) then begin
FItems.ColCnt:=Columns.Count;
FItems.RowCnt:=RowCount - FixedRows;
UpdateColumnsMap;
end;
inherited;
end;
procedure TVarGrid.DrawCell(aCol, aRow: Integer; aRect: TRect; aState: TGridDrawState);
var
ca: TCellAttributes;
// ts: TTextStyle;
dd, IsHeader: boolean;
R, RR: TRect;
det: TThemedElementDetails;
sz: TSize;
i: integer;
begin
RR:=aRect;
IsHeader:=(gdFixed in aState) and (aRow=0) and (aCol>=FirstGridColumn);
if not IsHeader and MultiSelect and (FSelCount > 0) then
if (aRow >= FixedRows) and (aCol >= FixedCols) and RowSelected[aRow - FixedRows] then
Include(aState, gdSelected)
else
Exclude(aState, gdSelected);
PrepareCanvas(aCol, aRow, aState);
if DefaultDrawing then
SetupCell(aCol, aRow, aState, ca);
if not IsHeader or (TitleStyle<>tsNative) then
Canvas.FillRect(aRect);
if not IsHeader then begin
dd:=True;
if Assigned(FOnDrawCell) then begin
R:=CellRect(aCol, aRow);
if goVertLine in Options then
Dec(R.Right, 1);
if goHorzLine in Options then
Dec(R.Bottom, 1);
FOnDrawCell(Self, aCol, aRow - FixedRows, ColToDataCol(aCol), aState, R, dd);
end;
if DefaultDrawing and dd then begin
if CellNeedsCheckboxBitmaps(aCol,aRow) then
DrawCellCheckboxBitmaps(aCol,aRow,aRect)
else begin
Inc(aRect.Left, ca.Indent);
if coDrawTreeButton in ca.Options then begin
R:=aRect;
R.Right:=R.Left + (R.Bottom - R.Top);
aRect.Left:=R.Right;
if ThemeServices.ThemesEnabled then begin
if ca.Expanded then
det:=ThemeServices.GetElementDetails(ttGlyphOpened)
else
det:=ThemeServices.GetElementDetails(ttGlyphClosed);
sz:=ThemeServices.GetDetailSize(det);
with R do begin
Left:=(Left + Right - sz.cx) div 2;
Top:=(Top + Bottom - sz.cy) div 2;
R:=Bounds(Left, Top, sz.cx, sz.cy);
end;
ThemeServices.DrawElement(Canvas.Handle, det, R, nil);
end
else
with Canvas do begin
i:=(R.Bottom - R.Top) div 4;
InflateRect(R, -i, -i);
if (R.Right - R.Left) and 1 = 0 then
Dec(R.Right);
if (R.Bottom - R.Top) and 1 = 0 then
Dec(R.Bottom);
Pen.Color:=clWindowText;
Rectangle(R);
InflateRect(R, -1, -1);
Brush.Color:=clWindow;
FillRect(R);
InflateRect(R, -1, -1);
i:=(R.Top + R.Bottom) div 2;
MoveTo(R.Left, i);
LineTo(R.Right, i);
if not ca.Expanded then begin
i:=(R.Left + R.Right) div 2;
MoveTo(i, R.Top);
LineTo(i, R.Bottom);
end;
end;
end;
if coDrawCheckBox in ca.Options then begin
R:=aRect;
R.Right:=R.Left + (R.Bottom - R.Top);
aRect.Left:=R.Right;
DrawGridCheckboxBitmaps(aCol, aRow, R, ca.State);
end;
if (ca.ImageIndex <> -1) and Assigned(FImages) then begin
FImages.Draw(Canvas, aRect.Left + 2, (aRect.Bottom + aRect.Top - FImages.Height) div 2, ca.ImageIndex, gdeNormal);
Inc(aRect.Left, FImages.Width + 2);
end;
if ca.Text <> '' then begin
{
if Canvas.TextStyle.Alignment <> taLeftJustify then
if (aRect.Right <= aRect.Left) or (aRect.Right - aRect.Left < Canvas.TextWidth(ca.Text) + 9) then begin
ts:=Canvas.TextStyle;
ts.Alignment:=taLeftJustify;
Canvas.TextStyle:=ts;
end;
DrawCellText(aCol, aRow, aRect, aState, ca.Text);
}
with aRect do begin
Inc(Top, 2);
Inc(Left, constCellPadding);
Dec(Right, constCellPadding);
if Right<Left then
Right:=Left;
if Left>Right then
Left:=Right;
if Bottom<Top then
Bottom:=Top;
if Top>Bottom then
Top:=Bottom;
if (Left <> Right) and (Top <> Bottom) then begin
if Canvas.TextStyle.Alignment <> taLeftJustify then begin
i:=Canvas.TextWidth(ca.Text);
if i < Right - Left then
case Canvas.TextStyle.Alignment of
taRightJustify:
Left:=Right - i;
taCenter:
Left:=(Left + Right - i) div 2;
end;
end;
ExtUTF8Out(Canvas.Handle, Left, Top, ETO_OPAQUE or ETO_CLIPPED, @aRect, PChar(ca.Text), Length(ca.Text), nil);
end;
end;
end;
end;
end;
end;
if gdFixed in aState then
DefaultDrawCell(aCol, aRow, RR, aState)
else
DrawCellGrid(aCol, aRow, RR, aState);
end;
procedure TVarGrid.ColRowMoved(IsColumn: Boolean; FromIndex, ToIndex: Integer);
begin
inherited ColRowMoved(IsColumn, FromIndex, ToIndex);
UpdateColumnsMap;
end;
procedure TVarGrid.PrepareCanvas(aCol, aRow: Integer; aState: TGridDrawState);
var
F: TCustomForm;
begin
if FHideSelection and (FSelCount = 0) then begin
F:=GetParentForm(Self);
if (F <> nil) and (F.ActiveControl <> Self) then
aState:=aState - [gdSelected];
end;
inherited PrepareCanvas(aCol, aRow, aState);
with Canvas do
if (Font.Color = clWindow) and (Brush.Color = clHighlight) then begin
Font.Color:=clHighlightText;
{$ifdef LCLgtk2}
Brush.Color:=ColorToRGB(Brush.Color); // Workaround for LCL bug
{$endif LCLgtk2}
end;
end;
procedure TVarGrid.MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
var
pt: TPoint;
IsCtrl, CheckBoxClicked: boolean;
ca: TCellAttributes;
R, RR: TRect;
begin
{$ifdef LCLcarbon}
IsCtrl:=ssMeta in GetCarbonShiftState;
{$else}
IsCtrl:=ssCtrl in Shift;
{$endif LCLcarbon}
CheckBoxClicked:=False;
pt:=MouseToCell(Point(X,Y));
if ssLeft in Shift then begin
SetupCell(pt.x, pt.y, [], ca);
RR:=CellRect(pt.x, pt.y);
Inc(RR.Left, ca.Indent);
if (RR.Left <= RR.Right) and (coDrawTreeButton in ca.Options) then begin
R:=RR;
R.Right:=R.Left + (R.Bottom - R.Top);
if R.Right > RR.Right then
R.Right:=RR.Right;
if PtInRect(R, Point(X,Y)) then begin
DoOnTreeButtonClick(pt.x, pt.y);
InvalidateCell(pt.x, pt.y);
if Assigned(OnDblClick) and (ssDouble in Shift) then
FNoDblClick:=True;
end;
Inc(RR.Left, RR.Bottom - RR.Top);
end;
if (RR.Left <= RR.Right) and (coDrawCheckBox in ca.Options) then begin
R:=RR;
R.Right:=R.Left + (R.Bottom - R.Top);
if R.Right > RR.Right then
R.Right:=RR.Right;
if PtInRect(R, Point(X,Y)) then begin
DoOnCheckBoxClick(pt.x, pt.y);
InvalidateCell(pt.x, pt.y);
CheckBoxClicked:=True;
if Assigned(OnDblClick) and (ssDouble in Shift) then
FNoDblClick:=True;
end;
end;
end;
if (ssRight in Shift) {$ifdef darwin} or (Shift*[ssLeft, ssCtrl] = [ssLeft, ssCtrl]) {$endif} then begin
SetFocus;
if (pt.x >= FixedCols) and (pt.y >= FixedRows) then begin
if MultiSelect and (SelCount > 0) and not RowSelected[pt.y - FixedRows] then
RemoveSelection;
Row:=pt.y - FixedRows;
end;
end
else
if MultiSelect and (ssLeft in Shift) and (pt.x >= FixedCols) and (pt.y >= FixedRows) then begin
if IsCtrl then begin
if SelCount = 0 then
RowSelected[Row]:=True;
RowSelected[pt.y - FixedRows]:=not RowSelected[pt.y - FixedRows];
FAnchor:=-1;
end
else
if ssShift in Shift then
SelectRange(Row, pt.y - FixedRows)
else begin
if (SelCount > 0) and not CheckBoxClicked then
RemoveSelection;
FAnchor:=-1;
end;
end;
inherited MouseDown(Button, Shift, X, Y);
end;
procedure TVarGrid.MouseMove(Shift: TShiftState; X, Y: Integer);
var
pt: TPoint;
begin
NullStrictConvert := False;
inherited MouseMove(Shift, X, Y);
pt:=MouseToCell(Point(x, y));
if (FHintCell.x <> -1) and ((FHintCell.x <> pt.x) or (FHintCell.y <> pt.y)) then begin
Application.CancelHint;
FHintCell.x:=-1;
end;
end;
procedure TVarGrid.KeyDown(var Key: Word; Shift: TShiftState);
var
r, k: integer;
ca: TCellAttributes;
begin
if EditorMode then begin
if Key = VK_ESCAPE then begin
EditorHide;
SetFocus;
end;
exit;
end;
r:=Row;
k:=Key;
if (Shift = []) and ( (k = VK_SPACE) or (k = VK_LEFT) or (k = VK_RIGHT) or (k = VK_ADD) or (k = VK_SUBTRACT) ) then begin
SetupCell(FixedCols, inherited Row, [], ca);
case k of
VK_SPACE:
if coDrawCheckBox in ca.Options then begin
DoOnCheckBoxClick(FixedCols, inherited Row);
Key:=0;
exit;
end;
VK_LEFT, VK_SUBTRACT:
if (coDrawTreeButton in ca.Options) and ca.Expanded then begin
DoOnTreeButtonClick(FixedCols, inherited Row);
Key:=0;
exit;
end;
VK_RIGHT, VK_ADD:
if (coDrawTreeButton in ca.Options) and not ca.Expanded then begin
DoOnTreeButtonClick(FixedCols, inherited Row);
Key:=0;
exit;
end;
end;
end;
inherited KeyDown(Key, Shift);
if MultiSelect then begin
if ssCtrl in Shift then begin
if k = VK_SPACE then
RowSelected[Row]:=not RowSelected[Row];
FAnchor:=-1;
end
else
if ssShift in Shift then begin
SelectRange(r, Row);
end
else
if k in [VK_LEFT, VK_RIGHT, VK_UP, VK_DOWN, VK_HOME, VK_END, VK_NEXT, VK_PRIOR] then begin
if SelCount > 0 then
RemoveSelection;
FAnchor:=-1;
end;
end;
if (Key = VK_RETURN) and (Shift = []) and Assigned(OnDblClick) then
OnDblClick(Self);
end;
procedure TVarGrid.UTF8KeyPress(var UTF8Key: TUTF8Char);
var
i, r: integer;
begin
inherited UTF8KeyPress(UTF8Key);
if UTF8Key = #0 then
exit;
FSearchTimer.Enabled:=False;
FSearchTimer.Enabled:=True;
if FCurSearch = '' then
i:=0
else
i:=Row;
FCurSearch:=FCurSearch + UTF8Key;
if Assigned(FOnQuickSearch) then begin
r:=i;
FOnQuickSearch(Self, FCurSearch, r);
if r <> i then
Row:=r;
end
else begin
i:=FindRow(FCurSearch, i);
if i >= 0 then
Row:=i;
end;
end;
procedure TVarGrid.DoOnCellAttributes(ACol, ARow, ADataCol: integer; AState: TGridDrawState; var CellAttribs: TCellAttributes);
begin
if Assigned(FOnCellAttributes) then
FOnCellAttributes(Self, ACol, ARow, ADataCol, AState, CellAttribs);
end;
procedure TVarGrid.HeaderClick(IsColumn: Boolean; index: Integer);
var
i: integer;
begin
inherited HeaderClick(IsColumn, index);
if IsColumn and (FSortColumn >= 0) then begin
fGridState:=gsNormal;
i:=ColToDataCol(index);
if FSortColumn = i then begin
if SortOrder = soAscending then
SortOrder:=soDescending
else
SortOrder:=soAscending;
end
else begin
SortOrder:=soAscending;
SortColumn:=i;
end;
end;
end;
procedure TVarGrid.AutoAdjustColumn(aCol: Integer);
var
i, j, wd, h, fr: integer;
ca: TCellAttributes;
begin
wd:=4;
fr:=FixedRows;
for i:=0 to FItems.Count - 1 do begin
h:=RowHeights[i + fr];
if h > 0 then begin
SetupCell(aCol, i + fr, [], ca);
j:=Canvas.TextWidth(ca.Text) + 6;
Inc(j, ca.Indent);
if coDrawTreeButton in ca.Options then
Inc(j, h);
if coDrawCheckBox in ca.Options then
Inc(j, h);
if (ca.ImageIndex <> -1) and Assigned(FImages) then
Inc(j, FImages.Width + 2);
if j > wd then
wd:=j;
end;
end;
ColumnFromGridColumn(aCol).Width:=wd;
end;
procedure TVarGrid.VisualChange;
begin
inherited VisualChange;
if HandleAllocated then
DefaultRowHeight:=Canvas.TextHeight('Xy') + 5;
UpdateColumnsMap;
end;
procedure TVarGrid.DrawColumnText(aCol, aRow: Integer; aRect: TRect; aState: TGridDrawState);
var
R: TRect;
i: integer;
begin
if (gdFixed in aState) and (aRow=0) and (aCol>=FirstGridColumn) then begin
R:=aRect;
if FSortColumn = ColToDataCol(aCol) then begin
R.Right:=R.Left + R.Bottom - R.Top;
InflateRect(R, -5, -5);
OffsetRect(R, -3, 0);
Dec(R.Bottom, 2);
aRect.Left:=R.Right + 2;
end;
inherited DrawColumnText(aCol, aRow, aRect, aState);
if FSortColumn = ColToDataCol(aCol) then
with Canvas do begin
Pen.Color:=clGrayText;
i:=(R.Left + R.Right ) div 2;
if SortOrder = soAscending then begin
MoveTo(i + (i - R.Left) - 1, R.Bottom - 1);
LineTo(i, R.Top - 1);
MoveTo(i, R.Top);
LineTo(i - (R.Right - i) + 1, R.Bottom);
LineTo(R.Right, R.Bottom);
end
else begin