-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathAn4logGauge.pas
1192 lines (1019 loc) · 33.1 KB
/
An4logGauge.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
unit An4logGauge;
//{$DEFINE TICKER}
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls;
type
TGaugeStyle = ( gsLeft, gsRight, gsCenter );
TFaceOption = ( foShowFrame, foShowMargin, foShowCaption, foShowCircles,
foShow3D, foShowValues, foValuesOutside, foShowMainTicks,
foShowSubTicks, foShowIndicatorMin, foShowIndicatorMid,
foShowIndicatorMax, foShowCenter, foChangeArrowColor,
foChangeValuesColor, foChangeCirclesColor, foAutoUpdate );
TFaceOptions = set of TFaceOption;
TAntialiased = (aaNone, aaBiline, aaTriline, aaQuadral);
TCoord = record
W, H, M, X, Y, JW, JH, dK: Integer;
A, C, dF: Double;
end;
TAn4logGauge = class(TCustomControl)
private
// face elements colors
FMinColor : TColor;
FMidColor : TColor;
FMaxColor : TColor;
FFaceColor : TColor;
FTicksColor : TColor;
FValueColor : TColor;
FCaptionColor : TColor;
FArrowColor : TColor;
FMarginColor : TColor;
FCenterColor : TColor;
FCircleColor : TColor;
// face elements sizes, etc.
FCoord : TCoord;
FCenterRadius : Integer;
FCircleRadius : Integer;
FScaleAngle : Integer;
FMargin : Integer;
FStyle : TGaugeStyle;
FArrowWidth : Integer;
FNumMainTicks : Integer;
FNumSubTicks : Integer;
FLengthMainTicks : Integer;
FLengthSubTicks : Integer;
FFaceOptions : TFaceOptions;
FValuesFormat : array[0..4] of Char;
FAutoUpdate : Boolean;
// values
FScaleValue : Integer; // internal = 100%
FPosition : Double;
FValueDecimals : Byte;
FMinimum : Double;
FMaximum : Double;
FMinMid : Double;
FMidMax : Double;
FCaption : string;
// event handlers
FOverMax : TNotifyEvent;
FOverMin : TNotifyEvent;
// anti-aliasing mode
FAntiAliased : TAntialiased;
// internal bitmaps
FBackBitmap : TBitmap;
FFaceBitmap : TBitmap;
FAABitmap : TBitmap;
{$IFDEF TICKER}
// performance tracking
FTicker : Int64;
FPeriod : Int64;
FFrames : Integer;
FOnFrames : TNotifyEvent;
{$ENDIF}
// set properties
procedure SetFMinColor(C: TColor);
procedure SetFMidColor(C: TColor);
procedure SetFMaxColor(C: TColor);
procedure SetFFaceColor(C: TColor);
procedure SetFTicksColor(C: TColor);
procedure SetFValueColor(C: TColor);
procedure SetFCaptionColor(C: TColor);
procedure SetFArrowColor(C: TColor);
procedure SetFMarginColor(C: TColor);
procedure SetFCenterColor(C: TColor);
procedure SetFCircleColor(C: TColor);
procedure SetFCenterRadius(I: Integer);
procedure SetFCircleRadius(I: Integer);
procedure SetFScaleAngle(I: Integer);
procedure SetFMargin(I: Integer);
procedure SetFStyle(S: TGaugeStyle);
procedure SetFArrowWidth(I: Integer);
procedure SetFNumMainTicks(I: Integer);
procedure SetFNumSubTicks(I: Integer);
procedure SetFLengthMainTicks(I: Integer);
procedure SetFLengthSubTicks(I: Integer);
procedure SetFFaceOptions(O: TFaceOptions);
procedure SetFPosition(F: Double);
// procedure SetFScaleValue(I: Integer);
procedure SetFValueDecimals(I: Byte);
procedure SetFMaximum(I: Double);
procedure SetFMinimum(I: Double);
procedure SetFMinMid(I: Double);
procedure SetFMidMax(I: Double);
procedure SetFCaption(const S: string);
procedure SetFAntiAliased(V: TAntialiased);
function GetAAMultipler: Integer;
function GetPositionColor(F: Double): TColor;
procedure CalcCoords(const Bitmap: TBitmap; const K: Integer);
protected
procedure DrawScale(Bitmap: TBitmap; K: Integer);
procedure DrawArrow(Bitmap: TBitmap; K: Integer);
procedure RedrawScale(bDraw: Boolean = False);
procedure RedrawArrow;
procedure FastAntiAliasPicture;
procedure Paint; override;
procedure WMSize(var Message: TWMSize); message WM_SIZE;
procedure CMFontChanged(var Msg: TMessage); message CM_FontChanged;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure ReDraw;
published
property Font;
// face elements colors
property MinColor : TColor read FMinColor write SetFMinColor;
property MidColor : TColor read FMidColor write SetFMidColor;
property MaxColor : TColor read FMaxColor write SetFMaxColor;
property FaceColor : TColor read FFaceColor write SetFFaceColor;
property TicksColor : TColor read FTicksColor write SetFTicksColor;
property ValueColor : TColor read FValueColor write SetFValueColor;
property CaptionColor : TColor read FCaptionColor write SetFCaptionColor;
property ArrowColor : TColor read FArrowColor write SetFArrowColor;
property MarginColor : TColor read FMarginColor write SetFMarginColor;
property CenterColor : TColor read FCenterColor write SetFCenterColor;
property CircleColor : TColor read FCircleColor write SetFCircleColor;
// face elements sizes, etc.
property CenterRadius : Integer read FCenterRadius write SetFCenterRadius;
property CircleRadius : Integer read FCircleRadius write SetFCircleRadius;
property Angle : Integer read FScaleAngle write SetFScaleAngle;
property Margin : Integer read FMargin write SetFMargin;
property Style : TGaugeStyle read FStyle write SetFStyle;
property ArrowWidth : Integer read FArrowWidth write SetFArrowWidth;
property NumberMainTicks : Integer read FNumMainTicks write SetFNumMainTicks;
property NumberSubTicks : Integer read FNumSubTicks write SetFNumSubTicks;
property LengthMainTicks : Integer read FLengthMainTicks write SetFLengthMainTicks;
property LengthSubTicks : Integer read FLengthSubTicks write SetFLengthSubTicks;
property FaceOptions : TFaceOptions read FFaceOptions write SetFFaceOptions;
// values
property Position: Double read FPosition write SetFPosition;
// property Scale: Integer read FScaleValue write SetFScaleValue;
property Maximum : Double read FMaximum write SetFMaximum;
property Minimum : Double read FMinimum write SetFMinimum;
property MiddleMin : Double read FMinMid write SetFMinMid;
property MiddleMax : Double read FMidMax write SetFMidMax;
property Caption : string read FCaption write SetFCaption;
property ValueDecimals : Byte read FValueDecimals write SetFValueDecimals;
// anti-aliasing mode
property AntiAliased: TAntialiased read FAntiAliased write SetFAntiAliased;
// event handlers
property OnOverMax : TNotifyEvent read FOverMax write FOverMax;
property OnOverMin : TNotifyEvent read FOverMin write FOverMin;
{$IFDEF TICKER}
// ticker
property OnFrames : TNotifyEvent read FOnFrames write FOnFrames;
property Frames : Integer read FFrames;
{$ENDIF}
end;
procedure Register;
implementation
uses Math;
{ ========================================================================= }
constructor TAn4logGauge.Create(AOwner: TComponent);
begin
inherited;
FBackBitmap := TBitmap.Create();
FFaceBitmap := TBitmap.Create();
FAABitmap := nil;
//*****************************defaults:****************************************
Width := 225;
Height := 180;
FBackBitmap.Width := Width;
FBackBitmap.Height := Height;
FFaceBitmap.Width := Width;
FFaceBitmap.Height := Height;
FBackBitmap.Canvas.Brush.Style := bsClear;
FBackBitmap.Canvas.Brush.Color := Self.Color;
FFaceColor := clBlack;
FTicksColor := clWhite;
FValueColor := clWhite;
FCaptionColor := clWhite;
FArrowColor := clWhite;
FMarginColor := clWhite;
FCenterColor := clWhite;
FCircleColor := clBlue;
FMinColor := clNavy;
FMidColor := clGreen;
FMaxColor := clRed;
FArrowWidth := 1;
// FLineWidth := 1;
FMargin := 10;
FStyle := gsCenter;
FScaleValue := 100;
FMaximum := 80;
FMinimum := 30;
FMinMid := 50;
FMidMax := 60;
FPosition := FMinimum;
FScaleAngle := 120;
FCircleRadius := 3;
FCenterRadius := 8;
FNumMainTicks := 10;
FNumSubTicks := 5;
FLengthMainTicks := 15;
FLengthSubTicks := 8;
FValueDecimals := 2;
FValuesFormat := '%1.2f';
FCaption := 'Gauge';
FFaceOptions := [foShowMargin, foShowMainTicks, foShowSubTicks, foShowIndicatorMax,
foShowValues, foShowCenter, foShowFrame, foShow3D, foShowCaption];
FAntiAliased := aaNone;
{$IFDEF TICKER}
FTicker := -1; FFrames := 0;
if not QueryPerformanceFrequency(FPeriod) then FPeriod := 0;
{$ENDIF}
end;
destructor TAn4logGauge.Destroy;
begin
FBackBitmap.Free();
FFaceBitmap.Free();
FAABitmap.Free();
inherited;
end;
{ ------------------------------------------------------------------------- }
procedure SetPenStyles(Pen: TPen; Width: Integer; Color: TColor);
var
HP : HPen;
LB : TLOGBRUSH;
begin
LB.lbStyle := BS_SOLID;
LB.lbColor := Color;
LB.lbHatch := 0;
HP := ExtCreatePen(PS_GEOMETRIC or PS_SOLID or PS_ENDCAP_FLAT or
PS_JOIN_ROUND, Width, LB, 0, nil);
if ( HP = 0 ) then
begin
Pen.Width := Width;
Pen.Color := Color;
end
else
Pen.Handle := HP;
end;
procedure TAn4logGauge.CalcCoords(const Bitmap: TBitmap; const K: Integer);
var
TW, TH, S, O : Integer;
dJ, A1 : Double;
begin
with FCoord do
begin
W := Bitmap.Width;
H := Bitmap.Height;
M := FMargin * K;
dK := K * FLengthMainTicks;
O := Ord( foValuesOutside in FFaceOptions );
if ( foShowValues in FFaceOptions ) and ( O > 0 ) then
begin
TW := ( Max(Bitmap.Canvas.TextWidth(Format(FValuesFormat, [RoundTo(FMaximum, -FValueDecimals)])),
Bitmap.Canvas.TextWidth(Format(FValuesFormat, [RoundTo(FMinimum, -FValueDecimals)]))) + 12)*K;
TH := ( Bitmap.Canvas.TextHeight(' ') + 12)*K;
TW := Max(TW, TH);
end
else
TW := 0;
TH := TW;
if ( FStyle <> gsCenter ) then
begin
FScaleAngle := EnsureRange(FScaleAngle, 0, 90);
Y := H - M - K;
S := Ord(FStyle = gsRight);
A1 :=(90 - FScaleAngle)/2;
A := ((1 - S)*90 + A1);
X := Round(W*S - Sign(2*S - 1)*(M + K));
C := X;
dJ := cos(DegToRad(A1));
JW := Round((W - 2*M)/dj - TW*O*(2-cos(DegToRad(A1))));
JH := Round((H - 2*M)/dj - TH*O);
end
else begin
X := W div 2;
A := (180 - FScaleAngle)/2;
C := W/2;
if ( fScaleAngle >= 180 ) then
begin
JW := (W - 2*M) div 2 - TW;
JH := (H - 2*M) div 2 - TH;
Y := Round((H + JH*(1 - Abs(Sin(DegToRad(A)))))/2);
end
else begin
TH := (Canvas.TextHeight(' '))*K*O;
JW := Min(Round((W/2 - M - TW)/Cos(DegToRad(A))),
Round((H/2 - M - TH)/Sin(DegToRad(A))));
JH := JW;
Y := (H + JH + TH - K*FCenterRadius) div 2;
end;
end;
JH := JH - K;
JW := JW - K;
dF := FScaleAngle/FScaleValue;
end;
end;
function TAn4logGauge.GetPositionColor(F: Double): TColor;
begin
if ( F < FMinMid ) then
Result := FMinColor
else if ( F > FMidMax ) then
Result := FMaxColor
else
Result := FMidColor;
end;
procedure TAn4logGauge.DrawScale(Bitmap: TBitmap; K: Integer);
var
I, II, N, R, TL, S, VX, VY, VXX, VYY : Integer;
A1, P, Max, Min : Double;
T : string;
//**********************
procedure DrawRange(P1, P2: TPoint; RC: TColor);
begin
if not ( (P1.X = P2.X) and (P1.Y = P2.Y) ) then with FCoord, Bitmap do
begin
SetPenStyles(Canvas.Pen, dK, RC);
Canvas.Arc(X - JW + dK div 2, Y - JH + dK div 2, X + JW - dK div 2, Y + JH - dK div 2, P1.X, P1.Y, P2.X, P2.Y);
end;
end;
//**********************
begin
Bitmap.Canvas.Font := Font;
CalcCoords(Bitmap, K);
Min := (FMinMid - FMinimum)*FScaleValue/(FMaximum - FMinimum);
Max := (FMidMax - FMinimum)*FScaleValue/(FMaximum - FMinimum);
N := (FNumMainTicks - 1)*(FNumSubTicks + 1);
with Bitmap, FCoord do
begin
R := FCircleRadius * K;
Canvas.Brush.Color := FFaceColor;
Canvas.FillRect(Canvas.ClipRect);
Canvas.Font.Height := Canvas.Font.Height * K;
// ***************************** Out Frame **************************
if ( foShowFrame in fFaceOptions ) then
begin
if ( foShow3D in fFaceOptions ) then
begin
Canvas.Pen.Width := 2*K;
Canvas.Pen.Color := clBtnShadow;
Canvas.MoveTo(W, 0); Canvas.LineTo(0, 0); Canvas.LineTo(0, H);
Canvas.Pen.Color := clBtnHighlight;
Canvas.LineTo(W, H); Canvas.LineTo(W, 0);
end
else begin
Canvas.Pen.Width := K;
Canvas.Pen.Color := clBtnText;
Canvas.Rectangle(0, 0, W, H);
end;
end;
//************************* Out Margins **************************
if ( foShowMargin in fFaceOptions ) then
begin
Canvas.Pen.Color := FMarginColor;
Canvas.Pen.Width := K;
Canvas.Rectangle(M, M, W - M, H - M);
end;
//******************************** Out Caption *******************
if ( foShowCaption in FFaceOptions ) then
begin
S := 1 - 2 * Ord( (FStyle <> gsCenter) or (FScaleAngle < 260) );
Canvas.Font.Color := FCaptionColor;
{
Canvas.TextOut(Round(C - JW/2 * Cos(DegToRad(A + FScaleAngle/2))) -
Canvas.TextWidth(FCaption) div 2,
Round(Y + S * JH/3 * Sin(DegToRad(A + FScaleAngle/2))),
FCaption);
{}
Canvas.TextOut(Round(C - JW/2 * Cos(DegToRad(A + FScaleAngle/2))) -
Canvas.TextWidth(FCaption) div 2,
Round(Y + S * (JH/2 + Canvas.TextHeight(' ') + K)),
FCaption);
end;
//********************************** Out MinMaxLines *************************************
if ( foShowIndicatorMax in FFaceOptions ) and ( FMinimum <= FMidMax ) and ( FMidMax < FMaximum ) then
DrawRange(Point(Round(C - JW * Cos(DegToRad(A + FScaleAngle))),
Round(Y - JH * Sin(DegToRad(A + FScaleAngle)))),
Point(Round(C - JW * Cos(DegToRad(A + Max*dF))),
Round(Y - JH * Sin(DegToRad(A + Max*dF)))),
FMaxColor);
if ( foShowIndicatorMid in FFaceOptions ) and ( FMidMax > FMinMid ) and ( FMinMid >= FMinimum ) then
DrawRange(Point(Round(C - JW * Cos(DegToRad(A + Max*dF))),
Round(Y - JH * Sin(DegToRad(A + Max*dF)))),
Point(Round(C - JW * Cos(DegToRad(A + Min*dF))),
Round(Y - JH * Sin(DegToRad(A + Min*dF)))),
FMidColor);
if ( foShowIndicatorMin in FFaceOptions ) and ( FMinimum < FMinMid ) and ( FMinMid <= FMaximum ) then
DrawRange(Point(Round(C - JW * Cos(DegToRad(A + Min*dF))),
Round(Y - JH * Sin(DegToRad(A + Min*dF)))),
Point(Round(C - JW * Cos(DegToRad(A))),
Round(Y - JH * Sin(DegToRad(A)))),
FMinColor);
Canvas.Font.Color := FValueColor;
Canvas.Pen.Width := K;
I := 0;
Canvas.Pen.Color := FTicksColor;
while ( I <= N ) do
begin
// ********************************* Main Ticks Position *********************************
if ( I mod (FNumSubTicks + 1) = 0 ) then
begin
II := I div (FNumSubTicks + 1);
P := FMinimum + II*(FMaximum - FMinimum)/(FNumMainTicks - 1);
A1 := DegToRad(A + II*FScaleAngle/(FNumMainTicks - 1));
// ************************************* Out Values *************************************
if ( foShowMainTicks in fFaceOptions ) then
TL := FLengthMainTicks + 1;
if ( foShowValues in fFaceOptions ) then
begin
if ( foChangeValuesColor in FFaceOptions ) then
Canvas.Font.Color := GetPositionColor(P);
Canvas.Brush.Color := FFaceColor;
T := Format(FValuesFormat, [RoundTo(P, -FValueDecimals)]);
VX := -Canvas.TextWidth(T);
VY := -Canvas.TextHeight(T);
S := Ord(foValuesOutside in FFaceOptions);
if ( FStyle <> gsCenter ) then
begin
VYY := (VY - dK)*(1 - S) - 3*K*(1 - 2*S);
VXX := (VX - dK)*(1 - S) - 6*K*(1 - 2*S);
VX := VX *(Ord(FStyle = gsRight));
end
else begin
VX := VX div 2;
VY := VY div 2;
VYY := -(VY - 4*K)*sign(2*S - 1) - dK*(1 - S);
VXX := -(VX - 6*K)*sign(2*S - 1) - dK*(1 - S);
end;
Canvas.TextOut(Round(C - (JW + VXX)*cos(A1) + VX),
Round(Y - (JH + VYY)*sin(A1) + VY), T);
end;
// ************************************ Out Circles ************************************
if ( foShowCircles in FFaceOptions ) then
begin
TL := TL - FCircleRadius;
if ( foChangeCirclesColor in FFaceOptions ) then
Canvas.Brush.Color := GetPositionColor(P)
else
Canvas.Brush.Color := FCircleColor;
Canvas.Ellipse(Round(C - JW*Cos(A1)) - R,
Round(Y - JH*Sin(A1)) - R,
Round(C - JW*Cos(A1)) + R,
Round(Y - JH*Sin(A1)) + R);
end;
end
else if ( foShowSubTicks in fFaceOptions ) then begin
A1 := DegToRad(A + I*FScaleAngle/N);
TL := FLengthSubTicks;
end;
if ( foShowSubTicks in fFaceOptions ) then
Inc(I)
else
Inc(I, FNumSubTicks + 1);
//********************************** Out Ticks *************************************
if ( foShowMainTicks in fFaceOptions ) or ( foShowSubTicks in fFaceOptions ) then
begin
Canvas.MoveTo(Round(C - (JW - dK + K)*Cos(A1)),
Round(Y - (JH - dK + K)*Sin(A1)));
Canvas.LineTo(Round(C - (JW - (FLengthMainTicks + 1 - TL)*K)*Cos(A1)),
Round(Y - (JH - (FLengthMainTicks + 1 - TL)*K)*Sin(A1)));
end;
end;
end
end;
procedure TAn4logGauge.DrawArrow(Bitmap: TBitmap; K: Integer);
var
R, AW, PW : Integer;
P : Double;
L : TColor;
begin
CalcCoords(Bitmap, K);
P := (FPosition - FMinimum)*FScaleValue/(FMaximum - FMinimum);
with Bitmap, FCoord do
begin
R := FCenterRadius*K;
if ( foChangeArrowColor in FFaceOptions ) then
L := GetPositionColor(FPosition)
else
L := FArrowColor;
Canvas.Pen.Color := L;
Canvas.Brush.Color := L;
A := DegToRad(A + P*dF);
AW := (FArrowWidth - 1) * K;
Canvas.Polygon([Point(Round(X - (JW - dK)*Cos(A)), Round(Y - (JH - dK)*Sin(A))),
Point(Round(C - AW * Sin(A)), Round(Y + AW * Cos(A))),
Point(Round(C + AW * Sin(A)), Round(Y - AW * Cos(A)))]);
//********************************* Out Center ***************************************
if ( foShowCenter in FFaceOptions ) then
begin
Canvas.Pen.Width := FArrowWidth*k;
PW := Canvas.Pen.Width div 2;
Canvas.Brush.Color := FCenterColor;
Canvas.Ellipse(X - R + PW, Y - R + PW, X + R - PW, Y + R - PW);
Canvas.Pen.Width := 1;
end;
end;
end;
procedure TAn4logGauge.RedrawArrow;
{$IFDEF TICKER}
var
F: Integer;
Ticker: Int64;
begin
if ( FTicker < 0 ) then
if ( FPeriod = 0 ) then
FTicker := GetTickCount()
else
QueryPerformanceCounter(FTicker);
{$ELSE}
begin
{$ENDIF}
BitBlt(FFaceBitmap.Canvas.Handle, 0, 0, FBackBitmap.Width,
FBackBitmap.Height, FBackBitmap.Canvas.Handle, 0, 0, SRCCOPY);
DrawArrow(FFaceBitmap, GetAAMultipler);
if ( FAntialiased <> aaNone ) then
FastAntiAliasPicture();
Paint();
{$IFDEF TICKER}
if ( FPeriod = 0 ) then
begin
Ticker := GetTickCount();
if ( Ticker < FTicker ) then
Ticker := Ticker + $100000000;
F := 1000 div (Ticker - FTicker)
end
else begin
QueryPerformanceCounter(Ticker);
F := FPeriod div (Ticker - FTicker)
end;
if ( F <> FFrames ) then
begin
FFrames := F;
if Assigned(FOnFrames) then
FOnFrames(Self)
end;
FTicker := -1;
{$ENDIF}
end;
procedure TAn4logGauge.RedrawScale(bDraw: Boolean = False);
begin
if not ( bDraw or FAutoUpdate or (csDesigning in ComponentState) ) then
Exit;
{$IFDEF TICKER}
if ( FPeriod = 0 ) then
FTicker := GetTickCount()
else
QueryPerformanceCounter(FTicker);
{$ENDIF}
DrawScale(FBackBitmap, GetAAMultipler);
RedrawArrow();
end;
procedure TAn4logGauge.ReDraw;
begin
RedrawScale(True);
end;
const
MaxPixelCount = MaxInt div SizeOf(TRGBTriple);
type
PRGBArray = ^TRGBArray;
TRGBArray = array[0..MaxPixelCount-1] of TRGBTriple;
procedure TAn4logGauge.FastAntiAliasPicture;
var
i, k, x, y, cx, cy, cxi, totr, totg, totb : Integer;
Row1, Row2, Row3, Row4, DestRow : PRGBArray;
begin
// For each row
K := GetAAMultipler;
Row2 := nil;
Row3 := nil;
Row4 := nil;
for Y := 0 to FAABitmap.Height - 1 do
begin
// We compute samples of K x K pixels
cy := y*K;
// Get pointers to actual, previous and next rows in supersampled bitmap
Row1 := FFaceBitmap.ScanLine[cy];
if ( K > 1 ) then
Row2 := FFaceBitmap.ScanLine[cy+1];
if ( K > 2 ) then
Row3 := FFaceBitmap.ScanLine[cy+2];
if ( K > 3 ) then
Row4 := FFaceBitmap.ScanLine[cy+3];
// Get a pointer to destination row in output bitmap
DestRow := FAABitmap.ScanLine[y];
// For each column...
for x := 0 to FAABitmap.Width - 1 do
begin
// We compute samples of 3 x 3 pixels
cx := x*K;
// Initialize result color
totr := 0;
totg := 0;
totb := 0;
if ( K > 3 ) then
begin
for i := 0 to 3 do
begin
cxi := cx + i;
totr := totr + Row1[cxi].rgbtRed + Row2[cxi].rgbtRed + Row3[cxi].rgbtRed + Row4[cxi].rgbtRed;
totg := totg + Row1[cxi].rgbtGreen + Row2[cxi].rgbtGreen + Row3[cxi].rgbtGreen + Row4[cxi].rgbtGreen;
totb := totb + Row1[cxi].rgbtBlue + Row2[cxi].rgbtBlue + Row3[cxi].rgbtBlue + Row4[cxi].rgbtBlue;
end;
DestRow[x].rgbtRed := totr div 16;
DestRow[x].rgbtGreen := totg div 16;
DestRow[x].rgbtBlue := totb div 16;
end
else if ( K > 2 ) then
begin
for i := 0 to 2 do
begin
cxi := cx + i;
totr := totr + Row1[cxi].rgbtRed + Row2[cxi].rgbtRed + Row3[cxi].rgbtRed;
totg := totg + Row1[cxi].rgbtGreen + Row2[cxi].rgbtGreen + Row3[cxi].rgbtGreen;
totb := totb + Row1[cxi].rgbtBlue + Row2[cxi].rgbtBlue + Row3[cxi].rgbtBlue;
end;
DestRow[x].rgbtRed := totr div 9;
DestRow[x].rgbtGreen := totg div 9;
DestRow[x].rgbtBlue := totb div 9;
end
else if ( K > 1 ) then
begin
for i := 0 to 1 do
begin
cxi := cx + i;
totr := totr + Row1[cxi].rgbtRed + Row2[cxi].rgbtRed;
totg := totg + Row1[cxi].rgbtGreen + Row2[cxi].rgbtGreen;
totb := totb + Row1[cxi].rgbtBlue + Row2[cxi].rgbtBlue;
end;
DestRow[x].rgbtRed := totr div 4;
DestRow[x].rgbtGreen := totg div 4;
DestRow[x].rgbtBlue := totb div 4;
end
else begin
DestRow[x].rgbtRed := Row1[cx].rgbtRed;
DestRow[x].rgbtGreen := Row1[cx].rgbtGreen;
DestRow[x].rgbtBlue := Row1[cx].rgbtBlue;
end;
end;
end
end;
procedure TAn4logGauge.Paint;
begin
if ( FAntiAliased = aaNone ) then
BitBlt(Canvas.Handle, 0, 0, FFaceBitmap.Width,
FFaceBitmap.Height, FFaceBitmap.Canvas.Handle, 0, 0, SRCCOPY)
else
BitBlt(Canvas.Handle, 0, 0, FAABitmap.Width,
FAABitmap.Height, FAABitmap.Canvas.Handle, 0, 0, SRCCOPY);
end;
procedure TAn4logGauge.WMSize(var Message : TWMSize);
var
K : Integer;
begin
if ( Width < 60 ) then
Width := 60;
if ( Height < 50 ) then
Height := 50;
if ( FAntiAliased = aaNone ) then
begin
FBackBitmap.Width := Width; FBackBitmap.Height := Height;
FFaceBitmap.Width := Width; FFaceBitmap.Height := Height;
end
else begin
K := GetAAMultipler;
FBackBitmap.Width := Width * K; FBackBitmap.Height := Height * K;
FFaceBitmap.Width := Width * K; FFaceBitmap.Height := Height * K;
FAABitmap.Width := Width;
FAABitmap.Height := Height;
end;
RedrawScale();
inherited;
end;
procedure TAn4logGauge.CMFontChanged(var Msg:TMessage);
begin
RedrawScale();
end;
{ ------------------------------------------------------------------------- }
procedure TAn4logGauge.SetFMinColor(C: TColor);
begin
if ( C <> FMinColor ) then
begin
FMinColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFMidColor(C: TColor);
begin
if ( C <> FMidColor ) then
begin
FMidColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFMaxColor(C: TColor);
begin
if ( C <> FMaxColor ) then
begin
FMaxColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFFaceColor(C: TColor);
begin
if ( C <> FFaceColor ) then
begin
FFaceColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFTicksColor(C: TColor);
begin
if ( C <> FTicksColor ) then
begin
FTicksColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFValueColor(C: TColor);
begin
if ( C <> FValueColor ) then
begin
FValueColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFCaptionColor(C: TColor);
begin
if ( C <> FCaptionColor ) then
begin
FCaptionColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFArrowColor(C: TColor);
begin
if ( C <> FArrowColor ) then
begin
FArrowColor := C;
RedrawArrow();
end;
end;
procedure TAn4logGauge.SetFMarginColor(C: TColor);
begin
if ( C <> FMarginColor ) then
begin
FMarginColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFCenterColor(C: TColor);
begin
if ( C <> FCenterColor ) then
begin
FCenterColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFCircleColor(C: TColor);
begin
if ( C <> FCircleColor ) then
begin
FCircleColor := C;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFCenterRadius(I: Integer);
begin
if ( I <> FCenterRadius ) then
begin
if ( FStyle = gsCenter ) then
FCenterRadius := EnsureRange(I, 1, Min(Height div 4 - FMargin, Width div 4 - FMargin))
else
FCenterRadius := FMargin;
if ( FCenterRadius <= FArrowWidth ) then
FArrowWidth := FCenterRadius;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFCircleRadius(I: Integer);
begin
if ( I <> FCircleRadius ) then
begin
FCircleRadius := I;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFScaleAngle(I: Integer);
begin
if ( I <> FScaleAngle ) then
begin
if ( 10 <= I ) and ( I <= 360 ) then
FScaleAngle := I;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFMargin(I: Integer);
var
K : Integer;
begin
if ( I <> FMargin ) then
begin
K := GetAAMultipler()*2;
FMargin := EnsureRange(I, 1, Min(Height div 4 - K, Width div 4 - K));
I := FCenterRadius;
FCenterRadius := 1;
SetFCenterRadius(I);
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFStyle(S: TGaugeStyle);
begin
if ( S <> FStyle ) then
begin
FStyle := S;
if ( FStyle <> gsCenter ) and ( FCenterRadius > FMargin ) then
SetFCenterRadius(FMargin)
else
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFArrowWidth(I: Integer);
begin
if ( I <> FArrowWidth ) then
begin
FArrowWidth := EnsureRange(I, 1, FCenterRadius);
RedrawArrow();
end
end;
procedure TAn4logGauge.SetFNumMainTicks(I: Integer);
begin
if ( I <> FNumMainTicks ) and ( I > 1 ) then
begin
FNumMainTicks := I;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFNumSubTicks(I: Integer);
begin
if ( I <> FNumMainTicks ) and ( I > 0 ) then
begin
FNumSubTicks := I;
RedrawScale();
end;
end;
procedure TAn4logGauge.SetFLengthMainTicks(I: Integer);
begin
if ( I <> FLengthMainTicks ) then
begin
if ( I <= FLengthSubTicks ) then
FLengthMainTicks := FLengthSubTicks + 1
else
FLengthMainTicks := I;