forked from epezent/implot
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathimplot.cpp
5723 lines (5181 loc) · 259 KB
/
implot.cpp
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
// MIT License
// Copyright (c) 2022 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.14
/*
API BREAKING CHANGES
====================
Occasionally introducing changes that are breaking the API. We try to make the breakage minor and easy to fix.
Below is a change-log of API breaking changes only. If you are using one of the functions listed, expect to have to fix some code.
When you are not sure about a old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all implot files.
You can read releases logs https://github.com/epezent/implot/releases for more details.
- 2022/06/19 (0.14) - The signature of ColormapScale has changed to accommodate a new ImPlotColormapScaleFlags parameter
- 2022/06/17 (0.14) - **IMPORTANT** All PlotX functions now take an ImPlotX_Flags `flags` parameter. Where applicable, it is located before the existing `offset` and `stride` parameters.
If you were providing offset and stride values, you will need to update your function call to include a `flags` value. If you fail to do this, you will likely see
unexpected results or crashes without a compiler warning since these three are all default args. We apologize for the inconvenience, but this was a necessary evil.
- PlotBarsH has been removed; use PlotBars + ImPlotBarsFlags_Horizontal instead
- PlotErrorBarsH has been removed; use PlotErrorBars + ImPlotErrorBarsFlags_Horizontal
- PlotHistogram/PlotHistogram2D signatures changed; `cumulative`, `density`, and `outliers` options now specified via ImPlotHistogramFlags
- PlotPieChart signature changed; `normalize` option now specified via ImPlotPieChartFlags
- PlotText signature changes; `vertical` option now specified via `ImPlotTextFlags_Vertical`
- `PlotVLines` and `PlotHLines` replaced with `PlotInfLines` (+ ImPlotInfLinesFlags_Horizontal )
- arguments of ImPlotGetter have been reversed to be consistent with other API callbacks
- SetupAxisScale + ImPlotScale have replaced ImPlotAxisFlags_LogScale and ImPlotAxisFlags_Time flags
- ImPlotFormatters should now return an int indicating the size written
- the signature of ImPlotGetter has been reversed so that void* user_data is the last argument and consistent with other callbacks
- 2021/10/19 (0.13) - MAJOR API OVERHAUL! See #168 and #272
- TRIVIAL RENAME:
- ImPlotLimits -> ImPlotRect
- ImPlotYAxis_ -> ImAxis_
- SetPlotYAxis -> SetAxis
- BeginDragDropTarget -> BeginDragDropTargetPlot
- BeginDragDropSource -> BeginDragDropSourcePlot
- ImPlotFlags_NoMousePos -> ImPlotFlags_NoMouseText
- SetNextPlotLimits -> SetNextAxesLimits
- SetMouseTextLocation -> SetupMouseText
- SIGNATURE MODIFIED:
- PixelsToPlot/PlotToPixels -> added optional X-Axis arg
- GetPlotMousePos -> added optional X-Axis arg
- GetPlotLimits -> added optional X-Axis arg
- GetPlotSelection -> added optional X-Axis arg
- DragLineX/Y/DragPoint -> now takes int id; removed labels (render with Annotation/Tag instead)
- REPLACED:
- IsPlotXAxisHovered/IsPlotXYAxisHovered -> IsAxisHovered(ImAxis)
- BeginDragDropTargetX/BeginDragDropTargetY -> BeginDragDropTargetAxis(ImAxis)
- BeginDragDropSourceX/BeginDragDropSourceY -> BeginDragDropSourceAxis(ImAxis)
- ImPlotCol_XAxis, ImPlotCol_YAxis1, etc. -> ImPlotCol_AxisText (push/pop this around SetupAxis to style individual axes)
- ImPlotCol_XAxisGrid, ImPlotCol_Y1AxisGrid -> ImPlotCol_AxisGrid (push/pop this around SetupAxis to style individual axes)
- SetNextPlotLimitsX/Y -> SetNextAxisLimits(ImAxis)
- LinkNextPlotLimits -> SetNextAxisLinks(ImAxis)
- FitNextPlotAxes -> SetNextAxisToFit(ImAxis)/SetNextAxesToFit
- SetLegendLocation -> SetupLegend
- ImPlotFlags_NoHighlight -> ImPlotLegendFlags_NoHighlight
- ImPlotOrientation -> ImPlotLegendFlags_Horizontal
- Annotate -> Annotation
- REMOVED:
- GetPlotQuery, SetPlotQuery, IsPlotQueried -> use DragRect
- SetNextPlotTicksX, SetNextPlotTicksY -> use SetupAxisTicks
- SetNextPlotFormatX, SetNextPlotFormatY -> use SetupAxisFormat
- AnnotateClamped -> use Annotation(bool clamp = true)
- OBSOLETED:
- BeginPlot (original signature) -> use simplified signature + Setup API
- 2021/07/30 (0.12) - The offset argument of `PlotXG` functions was been removed. Implement offsetting in your getter callback instead.
- 2021/03/08 (0.9) - SetColormap and PushColormap(ImVec4*) were removed. Use AddColormap for custom colormap support. LerpColormap was changed to SampleColormap.
ShowColormapScale was changed to ColormapScale and requires additional arguments.
- 2021/03/07 (0.9) - The signature of ShowColormapScale was modified to accept a ImVec2 size.
- 2021/02/28 (0.9) - BeginLegendDragDropSource was changed to BeginDragDropSourceItem with a number of other drag and drop improvements.
- 2021/01/18 (0.9) - The default behavior for opening context menus was change from double right-click to single right-click. ImPlotInputMap and related functions were moved
to implot_internal.h due to its immaturity.
- 2020/10/16 (0.8) - ImPlotStyleVar_InfoPadding was changed to ImPlotStyleVar_MousePosPadding
- 2020/09/10 (0.8) - The single array versions of PlotLine, PlotScatter, PlotStems, and PlotShaded were given additional arguments for x-scale and x0.
- 2020/09/07 (0.8) - Plotting functions which accept a custom getter function pointer have been post-fixed with a G (e.g. PlotLineG)
- 2020/09/06 (0.7) - Several flags under ImPlotFlags and ImPlotAxisFlags were inverted (e.g. ImPlotFlags_Legend -> ImPlotFlags_NoLegend) so that the default flagset
is simply 0. This more closely matches ImGui's style and makes it easier to enable non-default but commonly used flags (e.g. ImPlotAxisFlags_Time).
- 2020/08/28 (0.5) - ImPlotMarker_ can no longer be combined with bitwise OR, |. This features caused unecessary slow-down, and almost no one used it.
- 2020/08/25 (0.5) - ImPlotAxisFlags_Scientific was removed. Logarithmic axes automatically uses scientific notation.
- 2020/08/17 (0.5) - PlotText was changed so that text is centered horizontally and vertically about the desired point.
- 2020/08/16 (0.5) - An ImPlotContext must be explicitly created and destroyed now with `CreateContext` and `DestroyContext`. Previously, the context was statically initialized in this source file.
- 2020/06/13 (0.4) - The flags `ImPlotAxisFlag_Adaptive` and `ImPlotFlags_Cull` were removed. Both are now done internally by default.
- 2020/06/03 (0.3) - The signature and behavior of PlotPieChart was changed so that data with sum less than 1 can optionally be normalized. The label format can now be specified as well.
- 2020/06/01 (0.3) - SetPalette was changed to `SetColormap` for consistency with other plotting libraries. `RestorePalette` was removed. Use `SetColormap(ImPlotColormap_Default)`.
- 2020/05/31 (0.3) - Plot functions taking custom ImVec2* getters were removed. Use the ImPlotPoint* getter versions instead.
- 2020/05/29 (0.3) - The signature of ImPlotLimits::Contains was changed to take two doubles instead of ImVec2
- 2020/05/16 (0.2) - All plotting functions were reverted to being prefixed with "Plot" to maintain a consistent VerbNoun style. `Plot` was split into `PlotLine`
and `PlotScatter` (however, `PlotLine` can still be used to plot scatter points as `Plot` did before.). `Bar` is not `PlotBars`, to indicate
that multiple bars will be plotted.
- 2020/05/13 (0.2) - `ImMarker` was change to `ImPlotMarker` and `ImAxisFlags` was changed to `ImPlotAxisFlags`.
- 2020/05/11 (0.2) - `ImPlotFlags_Selection` was changed to `ImPlotFlags_BoxSelect`
- 2020/05/11 (0.2) - The namespace ImGui:: was replaced with ImPlot::. As a result, the following additional changes were made:
- Functions that were prefixed or decorated with the word "Plot" have been truncated. E.g., `ImGui::PlotBars` is now just `ImPlot::Bar`.
It should be fairly obvious what was what.
- Some functions have been given names that would have otherwise collided with the ImGui namespace. This has been done to maintain a consistent
style with ImGui. E.g., 'ImGui::PushPlotStyleVar` is now 'ImPlot::PushStyleVar'.
- 2020/05/10 (0.2) - The following function/struct names were changes:
- ImPlotRange -> ImPlotLimits
- GetPlotRange() -> GetPlotLimits()
- SetNextPlotRange -> SetNextPlotLimits
- SetNextPlotRangeX -> SetNextPlotLimitsX
- SetNextPlotRangeY -> SetNextPlotLimitsY
- 2020/05/10 (0.2) - Plot queries are pixel based by default. Query rects that maintain relative plot position have been removed. This was done to support multi-y-axis.
*/
#include "implot.h"
#include "implot_internal.h"
#include <stdlib.h>
// Support for pre-1.82 versions. Users on 1.82+ can use 0 (default) flags to mean "all corners" but in order to support older versions we are more explicit.
#if (IMGUI_VERSION_NUM < 18102) && !defined(ImDrawFlags_RoundCornersAll)
#define ImDrawFlags_RoundCornersAll ImDrawCornerFlags_All
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wformat-nonliteral" // warning: format string is not a string literal
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wformat-nonliteral" // warning: format not a string literal, format string not checked
#endif
// Global plot context
#ifndef GImPlot
ImPlotContext* GImPlot = NULL;
#endif
//-----------------------------------------------------------------------------
// Struct Implementations
//-----------------------------------------------------------------------------
ImPlotInputMap::ImPlotInputMap() {
ImPlot::MapInputDefault(this);
}
ImPlotStyle::ImPlotStyle() {
LineWeight = 1;
Marker = ImPlotMarker_None;
MarkerSize = 4;
MarkerWeight = 1;
FillAlpha = 1;
ErrorBarSize = 5;
ErrorBarWeight = 1.5f;
DigitalBitHeight = 8;
DigitalBitGap = 4;
PlotBorderSize = 1;
MinorAlpha = 0.25f;
MajorTickLen = ImVec2(10,10);
MinorTickLen = ImVec2(5,5);
MajorTickSize = ImVec2(1,1);
MinorTickSize = ImVec2(1,1);
MajorGridSize = ImVec2(1,1);
MinorGridSize = ImVec2(1,1);
PlotPadding = ImVec2(10,10);
LabelPadding = ImVec2(5,5);
LegendPadding = ImVec2(10,10);
LegendInnerPadding = ImVec2(5,5);
LegendSpacing = ImVec2(5,0);
MousePosPadding = ImVec2(10,10);
AnnotationPadding = ImVec2(2,2);
FitPadding = ImVec2(0,0);
PlotDefaultSize = ImVec2(400,300);
PlotMinSize = ImVec2(200,150);
ImPlot::StyleColorsAuto(this);
Colormap = ImPlotColormap_Deep;
UseLocalTime = false;
Use24HourClock = false;
UseISO8601 = false;
}
//-----------------------------------------------------------------------------
// Style
//-----------------------------------------------------------------------------
namespace ImPlot {
const char* GetStyleColorName(ImPlotCol col) {
static const char* col_names[ImPlotCol_COUNT] = {
"Line",
"Fill",
"MarkerOutline",
"MarkerFill",
"ErrorBar",
"FrameBg",
"PlotBg",
"PlotBorder",
"LegendBg",
"LegendBorder",
"LegendText",
"TitleText",
"InlayText",
"AxisText",
"AxisGrid",
"AxisTick",
"AxisBg",
"AxisBgHovered",
"AxisBgActive",
"Selection",
"Crosshairs"
};
return col_names[col];
}
const char* GetMarkerName(ImPlotMarker marker) {
switch (marker) {
case ImPlotMarker_None: return "None";
case ImPlotMarker_Circle: return "Circle";
case ImPlotMarker_Square: return "Square";
case ImPlotMarker_Diamond: return "Diamond";
case ImPlotMarker_Up: return "Up";
case ImPlotMarker_Down: return "Down";
case ImPlotMarker_Left: return "Left";
case ImPlotMarker_Right: return "Right";
case ImPlotMarker_Cross: return "Cross";
case ImPlotMarker_Plus: return "Plus";
case ImPlotMarker_Asterisk: return "Asterisk";
default: return "";
}
}
ImVec4 GetAutoColor(ImPlotCol idx) {
ImVec4 col(0,0,0,1);
switch(idx) {
case ImPlotCol_Line: return col; // these are plot dependent!
case ImPlotCol_Fill: return col; // these are plot dependent!
case ImPlotCol_MarkerOutline: return col; // these are plot dependent!
case ImPlotCol_MarkerFill: return col; // these are plot dependent!
case ImPlotCol_ErrorBar: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_FrameBg: return ImGui::GetStyleColorVec4(ImGuiCol_FrameBg);
case ImPlotCol_PlotBg: return ImGui::GetStyleColorVec4(ImGuiCol_WindowBg);
case ImPlotCol_PlotBorder: return ImGui::GetStyleColorVec4(ImGuiCol_Border);
case ImPlotCol_LegendBg: return ImGui::GetStyleColorVec4(ImGuiCol_PopupBg);
case ImPlotCol_LegendBorder: return GetStyleColorVec4(ImPlotCol_PlotBorder);
case ImPlotCol_LegendText: return GetStyleColorVec4(ImPlotCol_InlayText);
case ImPlotCol_TitleText: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_InlayText: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_AxisText: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_AxisGrid: return GetStyleColorVec4(ImPlotCol_AxisText) * ImVec4(1,1,1,0.25f);
case ImPlotCol_AxisTick: return GetStyleColorVec4(ImPlotCol_AxisGrid);
case ImPlotCol_AxisBg: return ImVec4(0,0,0,0);
case ImPlotCol_AxisBgHovered: return ImGui::GetStyleColorVec4(ImGuiCol_ButtonHovered);
case ImPlotCol_AxisBgActive: return ImGui::GetStyleColorVec4(ImGuiCol_ButtonActive);
case ImPlotCol_Selection: return ImVec4(1,1,0,1);
case ImPlotCol_Crosshairs: return GetStyleColorVec4(ImPlotCol_PlotBorder);
default: return col;
}
}
struct ImPlotStyleVarInfo {
ImGuiDataType Type;
ImU32 Count;
ImU32 Offset;
void* GetVarPtr(ImPlotStyle* style) const { return (void*)((unsigned char*)style + Offset); }
};
static const ImPlotStyleVarInfo GPlotStyleVarInfo[] =
{
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, LineWeight) }, // ImPlotStyleVar_LineWeight
{ ImGuiDataType_S32, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, Marker) }, // ImPlotStyleVar_Marker
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MarkerSize) }, // ImPlotStyleVar_MarkerSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MarkerWeight) }, // ImPlotStyleVar_MarkerWeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, FillAlpha) }, // ImPlotStyleVar_FillAlpha
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, ErrorBarSize) }, // ImPlotStyleVar_ErrorBarSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, ErrorBarWeight) }, // ImPlotStyleVar_ErrorBarWeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, DigitalBitHeight) }, // ImPlotStyleVar_DigitalBitHeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, DigitalBitGap) }, // ImPlotStyleVar_DigitalBitGap
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotBorderSize) }, // ImPlotStyleVar_PlotBorderSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorAlpha) }, // ImPlotStyleVar_MinorAlpha
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MajorTickLen) }, // ImPlotStyleVar_MajorTickLen
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorTickLen) }, // ImPlotStyleVar_MinorTickLen
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MajorTickSize) }, // ImPlotStyleVar_MajorTickSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorTickSize) }, // ImPlotStyleVar_MinorTickSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MajorGridSize) }, // ImPlotStyleVar_MajorGridSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorGridSize) }, // ImPlotStyleVar_MinorGridSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotPadding) }, // ImPlotStyleVar_PlotPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LabelPadding) }, // ImPlotStyleVar_LabelPaddine
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LegendPadding) }, // ImPlotStyleVar_LegendPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LegendInnerPadding) }, // ImPlotStyleVar_LegendInnerPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LegendSpacing) }, // ImPlotStyleVar_LegendSpacing
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MousePosPadding) }, // ImPlotStyleVar_MousePosPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, AnnotationPadding) }, // ImPlotStyleVar_AnnotationPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, FitPadding) }, // ImPlotStyleVar_FitPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotDefaultSize) }, // ImPlotStyleVar_PlotDefaultSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotMinSize) } // ImPlotStyleVar_PlotMinSize
};
static const ImPlotStyleVarInfo* GetPlotStyleVarInfo(ImPlotStyleVar idx) {
IM_ASSERT(idx >= 0 && idx < ImPlotStyleVar_COUNT);
IM_ASSERT(IM_ARRAYSIZE(GPlotStyleVarInfo) == ImPlotStyleVar_COUNT);
return &GPlotStyleVarInfo[idx];
}
//-----------------------------------------------------------------------------
// Generic Helpers
//-----------------------------------------------------------------------------
void AddTextVertical(ImDrawList *DrawList, ImVec2 pos, ImU32 col, const char *text_begin, const char* text_end) {
// the code below is based loosely on ImFont::RenderText
if (!text_end)
text_end = text_begin + strlen(text_begin);
ImGuiContext& g = *GImGui;
ImFont* font = g.Font;
// Align to be pixel perfect
pos.x = IM_FLOOR(pos.x);
pos.y = IM_FLOOR(pos.y);
const float scale = g.FontSize / font->FontSize;
const char* s = text_begin;
int chars_exp = (int)(text_end - s);
int chars_rnd = 0;
const int vtx_count_max = chars_exp * 4;
const int idx_count_max = chars_exp * 6;
DrawList->PrimReserve(idx_count_max, vtx_count_max);
while (s < text_end) {
unsigned int c = (unsigned int)*s;
if (c < 0x80) {
s += 1;
}
else {
s += ImTextCharFromUtf8(&c, s, text_end);
if (c == 0) // Malformed UTF-8?
break;
}
const ImFontGlyph * glyph = font->FindGlyph((ImWchar)c);
if (glyph == NULL) {
continue;
}
DrawList->PrimQuadUV(pos + ImVec2(glyph->Y0, -glyph->X0) * scale, pos + ImVec2(glyph->Y0, -glyph->X1) * scale,
pos + ImVec2(glyph->Y1, -glyph->X1) * scale, pos + ImVec2(glyph->Y1, -glyph->X0) * scale,
ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V0),
ImVec2(glyph->U1, glyph->V1), ImVec2(glyph->U0, glyph->V1),
col);
pos.y -= glyph->AdvanceX * scale;
chars_rnd++;
}
// Give back unused vertices
int chars_skp = chars_exp-chars_rnd;
DrawList->PrimUnreserve(chars_skp*6, chars_skp*4);
}
void AddTextCentered(ImDrawList* DrawList, ImVec2 top_center, ImU32 col, const char* text_begin, const char* text_end) {
float txt_ht = ImGui::GetTextLineHeight();
const char* title_end = ImGui::FindRenderedTextEnd(text_begin, text_end);
ImVec2 text_size;
float y = 0;
while (const char* tmp = (const char*)memchr(text_begin, '\n', title_end-text_begin)) {
text_size = ImGui::CalcTextSize(text_begin,tmp,true);
DrawList->AddText(ImVec2(top_center.x - text_size.x * 0.5f, top_center.y+y),col,text_begin,tmp);
text_begin = tmp + 1;
y += txt_ht;
}
text_size = ImGui::CalcTextSize(text_begin,title_end,true);
DrawList->AddText(ImVec2(top_center.x - text_size.x * 0.5f, top_center.y+y),col,text_begin,title_end);
}
double NiceNum(double x, bool round) {
double f;
double nf;
int expv = (int)floor(ImLog10(x));
f = x / ImPow(10.0, (double)expv);
if (round)
if (f < 1.5)
nf = 1;
else if (f < 3)
nf = 2;
else if (f < 7)
nf = 5;
else
nf = 10;
else if (f <= 1)
nf = 1;
else if (f <= 2)
nf = 2;
else if (f <= 5)
nf = 5;
else
nf = 10;
return nf * ImPow(10.0, expv);
}
//-----------------------------------------------------------------------------
// Context Utils
//-----------------------------------------------------------------------------
void SetImGuiContext(ImGuiContext* ctx) {
ImGui::SetCurrentContext(ctx);
}
ImPlotContext* CreateContext() {
ImPlotContext* ctx = IM_NEW(ImPlotContext)();
Initialize(ctx);
if (GImPlot == NULL)
SetCurrentContext(ctx);
return ctx;
}
void DestroyContext(ImPlotContext* ctx) {
if (ctx == NULL)
ctx = GImPlot;
if (GImPlot == ctx)
SetCurrentContext(NULL);
IM_DELETE(ctx);
}
ImPlotContext* GetCurrentContext() {
return GImPlot;
}
void SetCurrentContext(ImPlotContext* ctx) {
GImPlot = ctx;
}
#define IMPLOT_APPEND_CMAP(name, qual) ctx->ColormapData.Append(#name, name, sizeof(name)/sizeof(ImU32), qual)
#define IM_RGB(r,g,b) IM_COL32(r,g,b,255)
void Initialize(ImPlotContext* ctx) {
ResetCtxForNextPlot(ctx);
ResetCtxForNextAlignedPlots(ctx);
ResetCtxForNextSubplot(ctx);
const ImU32 Deep[] = {4289753676, 4283598045, 4285048917, 4283584196, 4289950337, 4284512403, 4291005402, 4287401100, 4285839820, 4291671396 };
const ImU32 Dark[] = {4280031972, 4290281015, 4283084621, 4288892568, 4278222847, 4281597951, 4280833702, 4290740727, 4288256409 };
const ImU32 Pastel[] = {4289639675, 4293119411, 4291161036, 4293184478, 4289124862, 4291624959, 4290631909, 4293712637, 4294111986 };
const ImU32 Paired[] = {4293119554, 4290017311, 4287291314, 4281114675, 4288256763, 4280031971, 4285513725, 4278222847, 4292260554, 4288298346, 4288282623, 4280834481};
const ImU32 Viridis[] = {4283695428, 4285867080, 4287054913, 4287455029, 4287526954, 4287402273, 4286883874, 4285579076, 4283552122, 4280737725, 4280674301 };
const ImU32 Plasma[] = {4287039501, 4288480321, 4289200234, 4288941455, 4287638193, 4286072780, 4284638433, 4283139314, 4281771772, 4280667900, 4280416752 };
const ImU32 Hot[] = {4278190144, 4278190208, 4278190271, 4278190335, 4278206719, 4278223103, 4278239231, 4278255615, 4283826175, 4289396735, 4294967295 };
const ImU32 Cool[] = {4294967040, 4294960666, 4294954035, 4294947661, 4294941030, 4294934656, 4294928025, 4294921651, 4294915020, 4294908646, 4294902015 };
const ImU32 Pink[] = {4278190154, 4282532475, 4284308894, 4285690554, 4286879686, 4287870160, 4288794330, 4289651940, 4291685869, 4293392118, 4294967295 };
const ImU32 Jet[] = {4289331200, 4294901760, 4294923520, 4294945280, 4294967040, 4289396565, 4283826090, 4278255615, 4278233855, 4278212095, 4278190335 };
const ImU32 Twilight[] = {IM_RGB(226,217,226),IM_RGB(166,191,202),IM_RGB(109,144,192),IM_RGB(95,88,176),IM_RGB(83,30,124),IM_RGB(47,20,54),IM_RGB(100,25,75),IM_RGB(159,60,80),IM_RGB(192,117,94),IM_RGB(208,179,158),IM_RGB(226,217,226)};
const ImU32 RdBu[] = {IM_RGB(103,0,31),IM_RGB(178,24,43),IM_RGB(214,96,77),IM_RGB(244,165,130),IM_RGB(253,219,199),IM_RGB(247,247,247),IM_RGB(209,229,240),IM_RGB(146,197,222),IM_RGB(67,147,195),IM_RGB(33,102,172),IM_RGB(5,48,97)};
const ImU32 BrBG[] = {IM_RGB(84,48,5),IM_RGB(140,81,10),IM_RGB(191,129,45),IM_RGB(223,194,125),IM_RGB(246,232,195),IM_RGB(245,245,245),IM_RGB(199,234,229),IM_RGB(128,205,193),IM_RGB(53,151,143),IM_RGB(1,102,94),IM_RGB(0,60,48)};
const ImU32 PiYG[] = {IM_RGB(142,1,82),IM_RGB(197,27,125),IM_RGB(222,119,174),IM_RGB(241,182,218),IM_RGB(253,224,239),IM_RGB(247,247,247),IM_RGB(230,245,208),IM_RGB(184,225,134),IM_RGB(127,188,65),IM_RGB(77,146,33),IM_RGB(39,100,25)};
const ImU32 Spectral[] = {IM_RGB(158,1,66),IM_RGB(213,62,79),IM_RGB(244,109,67),IM_RGB(253,174,97),IM_RGB(254,224,139),IM_RGB(255,255,191),IM_RGB(230,245,152),IM_RGB(171,221,164),IM_RGB(102,194,165),IM_RGB(50,136,189),IM_RGB(94,79,162)};
const ImU32 Greys[] = {IM_COL32_WHITE, IM_COL32_BLACK };
IMPLOT_APPEND_CMAP(Deep, true);
IMPLOT_APPEND_CMAP(Dark, true);
IMPLOT_APPEND_CMAP(Pastel, true);
IMPLOT_APPEND_CMAP(Paired, true);
IMPLOT_APPEND_CMAP(Viridis, false);
IMPLOT_APPEND_CMAP(Plasma, false);
IMPLOT_APPEND_CMAP(Hot, false);
IMPLOT_APPEND_CMAP(Cool, false);
IMPLOT_APPEND_CMAP(Pink, false);
IMPLOT_APPEND_CMAP(Jet, false);
IMPLOT_APPEND_CMAP(Twilight, false);
IMPLOT_APPEND_CMAP(RdBu, false);
IMPLOT_APPEND_CMAP(BrBG, false);
IMPLOT_APPEND_CMAP(PiYG, false);
IMPLOT_APPEND_CMAP(Spectral, false);
IMPLOT_APPEND_CMAP(Greys, false);
}
void ResetCtxForNextPlot(ImPlotContext* ctx) {
// end child window if it was made
if (ctx->ChildWindowMade)
ImGui::EndChild();
ctx->ChildWindowMade = false;
// reset the next plot/item data
ctx->NextPlotData.Reset();
ctx->NextItemData.Reset();
// reset labels
ctx->Annotations.Reset();
ctx->Tags.Reset();
// reset extents/fit
ctx->OpenContextThisFrame = false;
// reset digital plot items count
ctx->DigitalPlotItemCnt = 0;
ctx->DigitalPlotOffset = 0;
// nullify plot
ctx->CurrentPlot = NULL;
ctx->CurrentItem = NULL;
ctx->PreviousItem = NULL;
}
void ResetCtxForNextAlignedPlots(ImPlotContext* ctx) {
ctx->CurrentAlignmentH = NULL;
ctx->CurrentAlignmentV = NULL;
}
void ResetCtxForNextSubplot(ImPlotContext* ctx) {
ctx->CurrentSubplot = NULL;
ctx->CurrentAlignmentH = NULL;
ctx->CurrentAlignmentV = NULL;
}
//-----------------------------------------------------------------------------
// Plot Utils
//-----------------------------------------------------------------------------
ImPlotPlot* GetPlot(const char* title) {
ImGuiWindow* Window = GImGui->CurrentWindow;
const ImGuiID ID = Window->GetID(title);
return GImPlot->Plots.GetByKey(ID);
}
ImPlotPlot* GetCurrentPlot() {
return GImPlot->CurrentPlot;
}
void BustPlotCache() {
GImPlot->Plots.Clear();
GImPlot->Subplots.Clear();
}
//-----------------------------------------------------------------------------
// Legend Utils
//-----------------------------------------------------------------------------
ImVec2 GetLocationPos(const ImRect& outer_rect, const ImVec2& inner_size, ImPlotLocation loc, const ImVec2& pad) {
ImVec2 pos;
if (ImHasFlag(loc, ImPlotLocation_West) && !ImHasFlag(loc, ImPlotLocation_East))
pos.x = outer_rect.Min.x + pad.x;
else if (!ImHasFlag(loc, ImPlotLocation_West) && ImHasFlag(loc, ImPlotLocation_East))
pos.x = outer_rect.Max.x - pad.x - inner_size.x;
else
pos.x = outer_rect.GetCenter().x - inner_size.x * 0.5f;
// legend reference point y
if (ImHasFlag(loc, ImPlotLocation_North) && !ImHasFlag(loc, ImPlotLocation_South))
pos.y = outer_rect.Min.y + pad.y;
else if (!ImHasFlag(loc, ImPlotLocation_North) && ImHasFlag(loc, ImPlotLocation_South))
pos.y = outer_rect.Max.y - pad.y - inner_size.y;
else
pos.y = outer_rect.GetCenter().y - inner_size.y * 0.5f;
pos.x = IM_ROUND(pos.x);
pos.y = IM_ROUND(pos.y);
return pos;
}
ImVec2 CalcLegendSize(ImPlotItemGroup& items, const ImVec2& pad, const ImVec2& spacing, bool vertical) {
// vars
const int nItems = items.GetLegendCount();
const float txt_ht = ImGui::GetTextLineHeight();
const float icon_size = txt_ht;
// get label max width
float max_label_width = 0;
float sum_label_width = 0;
for (int i = 0; i < nItems; ++i) {
const char* label = items.GetLegendLabel(i);
const float label_width = ImGui::CalcTextSize(label, NULL, true).x;
max_label_width = label_width > max_label_width ? label_width : max_label_width;
sum_label_width += label_width;
}
// calc legend size
const ImVec2 legend_size = vertical ?
ImVec2(pad.x * 2 + icon_size + max_label_width, pad.y * 2 + nItems * txt_ht + (nItems - 1) * spacing.y) :
ImVec2(pad.x * 2 + icon_size * nItems + sum_label_width + (nItems - 1) * spacing.x, pad.y * 2 + txt_ht);
return legend_size;
}
int LegendSortingComp(const void* _a, const void* _b) {
ImPlotItemGroup* items = GImPlot->SortItems;
const int a = *(const int*)_a;
const int b = *(const int*)_b;
const char* label_a = items->GetLegendLabel(a);
const char* label_b = items->GetLegendLabel(b);
return strcmp(label_a,label_b);
}
bool ShowLegendEntries(ImPlotItemGroup& items, const ImRect& legend_bb, bool hovered, const ImVec2& pad, const ImVec2& spacing, bool vertical, ImDrawList& DrawList) {
// vars
const float txt_ht = ImGui::GetTextLineHeight();
const float icon_size = txt_ht;
const float icon_shrink = 2;
ImU32 col_txt = GetStyleColorU32(ImPlotCol_LegendText);
ImU32 col_txt_dis = ImAlphaU32(col_txt, 0.25f);
// render each legend item
float sum_label_width = 0;
bool any_item_hovered = false;
const int num_items = items.GetLegendCount();
if (num_items < 1)
return hovered;
// build render order
ImVector<int>& indices = GImPlot->TempInt1;
indices.resize(num_items);
for (int i = 0; i < num_items; ++i)
indices[i] = i;
if (ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_Sort) && num_items > 1) {
GImPlot->SortItems = &items;
qsort(indices.Data, num_items, sizeof(int), LegendSortingComp);
}
// render
for (int i = 0; i < num_items; ++i) {
const int idx = indices[i];
ImPlotItem* item = items.GetLegendItem(idx);
const char* label = items.GetLegendLabel(idx);
const float label_width = ImGui::CalcTextSize(label, NULL, true).x;
const ImVec2 top_left = vertical ?
legend_bb.Min + pad + ImVec2(0, i * (txt_ht + spacing.y)) :
legend_bb.Min + pad + ImVec2(i * (icon_size + spacing.x) + sum_label_width, 0);
sum_label_width += label_width;
ImRect icon_bb;
icon_bb.Min = top_left + ImVec2(icon_shrink,icon_shrink);
icon_bb.Max = top_left + ImVec2(icon_size - icon_shrink, icon_size - icon_shrink);
ImRect label_bb;
label_bb.Min = top_left;
label_bb.Max = top_left + ImVec2(label_width + icon_size, icon_size);
ImU32 col_txt_hl;
ImU32 col_item = ImAlphaU32(item->Color,1);
ImRect button_bb(icon_bb.Min, label_bb.Max);
ImGui::KeepAliveID(item->ID);
bool item_hov = false;
bool item_hld = false;
bool item_clk = ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_NoButtons)
? false
: ImGui::ButtonBehavior(button_bb, item->ID, &item_hov, &item_hld);
if (item_clk)
item->Show = !item->Show;
const bool can_hover = (item_hov)
&& (!ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_NoHighlightItem)
|| !ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_NoHighlightAxis));
if (can_hover) {
item->LegendHoverRect.Min = icon_bb.Min;
item->LegendHoverRect.Max = label_bb.Max;
item->LegendHovered = true;
col_txt_hl = ImMixU32(col_txt, col_item, 64);
any_item_hovered = true;
}
else {
col_txt_hl = ImGui::GetColorU32(col_txt);
}
ImU32 col_icon;
if (item_hld)
col_icon = item->Show ? ImAlphaU32(col_item,0.5f) : ImGui::GetColorU32(ImGuiCol_TextDisabled, 0.5f);
else if (item_hov)
col_icon = item->Show ? ImAlphaU32(col_item,0.75f) : ImGui::GetColorU32(ImGuiCol_TextDisabled, 0.75f);
else
col_icon = item->Show ? col_item : col_txt_dis;
DrawList.AddRectFilled(icon_bb.Min, icon_bb.Max, col_icon);
const char* text_display_end = ImGui::FindRenderedTextEnd(label, NULL);
if (label != text_display_end)
DrawList.AddText(top_left + ImVec2(icon_size, 0), item->Show ? col_txt_hl : col_txt_dis, label, text_display_end);
}
return hovered && !any_item_hovered;
}
//-----------------------------------------------------------------------------
// Locators
//-----------------------------------------------------------------------------
static const float TICK_FILL_X = 0.8f;
static const float TICK_FILL_Y = 1.0f;
void Locator_Default(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
if (range.Min == range.Max)
return;
const int nMinor = 10;
const int nMajor = ImMax(2, (int)IM_ROUND(pixels / (vertical ? 300.0f : 400.0f)));
const double nice_range = NiceNum(range.Size() * 0.99, false);
const double interval = NiceNum(nice_range / (nMajor - 1), true);
const double graphmin = floor(range.Min / interval) * interval;
const double graphmax = ceil(range.Max / interval) * interval;
bool first_major_set = false;
int first_major_idx = 0;
const int idx0 = ticker.TickCount(); // ticker may have user custom ticks
ImVec2 total_size(0,0);
for (double major = graphmin; major < graphmax + 0.5 * interval; major += interval) {
// is this zero? combat zero formatting issues
if (major-interval < 0 && major+interval > 0)
major = 0;
if (range.Contains(major)) {
if (!first_major_set) {
first_major_idx = ticker.TickCount();
first_major_set = true;
}
total_size += ticker.AddTick(major, true, 0, true, formatter, formatter_data).LabelSize;
}
for (int i = 1; i < nMinor; ++i) {
double minor = major + i * interval / nMinor;
if (range.Contains(minor)) {
total_size += ticker.AddTick(minor, false, 0, true, formatter, formatter_data).LabelSize;
}
}
}
// prune if necessary
if ((!vertical && total_size.x > pixels*TICK_FILL_X) || (vertical && total_size.y > pixels*TICK_FILL_Y)) {
for (int i = first_major_idx-1; i >= idx0; i -= 2)
ticker.Ticks[i].ShowLabel = false;
for (int i = first_major_idx+1; i < ticker.TickCount(); i += 2)
ticker.Ticks[i].ShowLabel = false;
}
}
bool CalcLogarithmicExponents(const ImPlotRange& range, float pix, bool vertical, int& exp_min, int& exp_max, int& exp_step) {
if (range.Min * range.Max > 0) {
const int nMajor = vertical ? ImMax(2, (int)IM_ROUND(pix * 0.02f)) : ImMax(2, (int)IM_ROUND(pix * 0.01f)); // TODO: magic numbers
double log_min = ImLog10(ImAbs(range.Min));
double log_max = ImLog10(ImAbs(range.Max));
double log_a = ImMin(log_min,log_max);
double log_b = ImMax(log_min,log_max);
exp_step = ImMax(1,(int)(log_b - log_a) / nMajor);
exp_min = (int)log_a;
exp_max = (int)log_b;
if (exp_step != 1) {
while(exp_step % 3 != 0) exp_step++; // make step size multiple of three
while(exp_min % exp_step != 0) exp_min--; // decrease exp_min until exp_min + N * exp_step will be 0
}
return true;
}
return false;
}
void AddTicksLogarithmic(const ImPlotRange& range, int exp_min, int exp_max, int exp_step, ImPlotTicker& ticker, ImPlotFormatter formatter, void* data) {
const double sign = ImSign(range.Max);
for (int e = exp_min - exp_step; e < (exp_max + exp_step); e += exp_step) {
double major1 = sign*ImPow(10, (double)(e));
double major2 = sign*ImPow(10, (double)(e + 1));
double interval = (major2 - major1) / 9;
if (major1 >= (range.Min - DBL_EPSILON) && major1 <= (range.Max + DBL_EPSILON))
ticker.AddTick(major1, true, 0, true, formatter, data);
for (int j = 0; j < exp_step; ++j) {
major1 = sign*ImPow(10, (double)(e+j));
major2 = sign*ImPow(10, (double)(e+j+1));
interval = (major2 - major1) / 9;
for (int i = 1; i < (9 + (int)(j < (exp_step - 1))); ++i) {
double minor = major1 + i * interval;
if (minor >= (range.Min - DBL_EPSILON) && minor <= (range.Max + DBL_EPSILON))
ticker.AddTick(minor, false, 0, false, formatter, data);
}
}
}
}
void Locator_Log10(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
int exp_min, exp_max, exp_step;
if (CalcLogarithmicExponents(range, pixels, vertical, exp_min, exp_max, exp_step))
AddTicksLogarithmic(range, exp_min, exp_max, exp_step, ticker, formatter, formatter_data);
}
float CalcSymLogPixel(double plt, const ImPlotRange& range, float pixels) {
double scaleToPixels = pixels / range.Size();
double scaleMin = TransformForward_SymLog(range.Min,NULL);
double scaleMax = TransformForward_SymLog(range.Max,NULL);
double s = TransformForward_SymLog(plt, NULL);
double t = (s - scaleMin) / (scaleMax - scaleMin);
plt = range.Min + range.Size() * t;
return (float)(0 + scaleToPixels * (plt - range.Min));
}
void Locator_SymLog(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
if (range.Min >= -1 && range.Max <= 1) {
Locator_Default(ticker, range, pixels, vertical, formatter, formatter_data);
}
else if (range.Min * range.Max < 0) { // cross zero
const float pix_min = 0;
const float pix_max = pixels;
const float pix_p1 = CalcSymLogPixel(1, range, pixels);
const float pix_n1 = CalcSymLogPixel(-1, range, pixels);
int exp_min_p, exp_max_p, exp_step_p;
int exp_min_n, exp_max_n, exp_step_n;
CalcLogarithmicExponents(ImPlotRange(1,range.Max), ImAbs(pix_max-pix_p1),vertical,exp_min_p,exp_max_p,exp_step_p);
CalcLogarithmicExponents(ImPlotRange(range.Min,-1),ImAbs(pix_n1-pix_min),vertical,exp_min_n,exp_max_n,exp_step_n);
int exp_step = ImMax(exp_step_n, exp_step_p);
ticker.AddTick(0,true,0,true,formatter,formatter_data);
AddTicksLogarithmic(ImPlotRange(1,range.Max), exp_min_p,exp_max_p,exp_step,ticker,formatter,formatter_data);
AddTicksLogarithmic(ImPlotRange(range.Min,-1),exp_min_n,exp_max_n,exp_step,ticker,formatter,formatter_data);
}
else {
Locator_Log10(ticker, range, pixels, vertical, formatter, formatter_data);
}
}
void AddTicksCustom(const double* values, const char* const labels[], int n, ImPlotTicker& ticker, ImPlotFormatter formatter, void* data) {
for (int i = 0; i < n; ++i) {
if (labels != NULL)
ticker.AddTick(values[i], false, 0, true, labels[i]);
else
ticker.AddTick(values[i], false, 0, true, formatter, data);
}
}
//-----------------------------------------------------------------------------
// Time Ticks and Utils
//-----------------------------------------------------------------------------
// this may not be thread safe?
static const double TimeUnitSpans[ImPlotTimeUnit_COUNT] = {
0.000001,
0.001,
1,
60,
3600,
86400,
2629800,
31557600
};
inline ImPlotTimeUnit GetUnitForRange(double range) {
static double cutoffs[ImPlotTimeUnit_COUNT] = {0.001, 1, 60, 3600, 86400, 2629800, 31557600, IMPLOT_MAX_TIME};
for (int i = 0; i < ImPlotTimeUnit_COUNT; ++i) {
if (range <= cutoffs[i])
return (ImPlotTimeUnit)i;
}
return ImPlotTimeUnit_Yr;
}
inline int LowerBoundStep(int max_divs, const int* divs, const int* step, int size) {
if (max_divs < divs[0])
return 0;
for (int i = 1; i < size; ++i) {
if (max_divs < divs[i])
return step[i-1];
}
return step[size-1];
}
inline int GetTimeStep(int max_divs, ImPlotTimeUnit unit) {
if (unit == ImPlotTimeUnit_Ms || unit == ImPlotTimeUnit_Us) {
static const int step[] = {500,250,200,100,50,25,20,10,5,2,1};
static const int divs[] = {2,4,5,10,20,40,50,100,200,500,1000};
return LowerBoundStep(max_divs, divs, step, 11);
}
if (unit == ImPlotTimeUnit_S || unit == ImPlotTimeUnit_Min) {
static const int step[] = {30,15,10,5,1};
static const int divs[] = {2,4,6,12,60};
return LowerBoundStep(max_divs, divs, step, 5);
}
else if (unit == ImPlotTimeUnit_Hr) {
static const int step[] = {12,6,3,2,1};
static const int divs[] = {2,4,8,12,24};
return LowerBoundStep(max_divs, divs, step, 5);
}
else if (unit == ImPlotTimeUnit_Day) {
static const int step[] = {14,7,2,1};
static const int divs[] = {2,4,14,28};
return LowerBoundStep(max_divs, divs, step, 4);
}
else if (unit == ImPlotTimeUnit_Mo) {
static const int step[] = {6,3,2,1};
static const int divs[] = {2,4,6,12};
return LowerBoundStep(max_divs, divs, step, 4);
}
return 0;
}
ImPlotTime MkGmtTime(struct tm *ptm) {
ImPlotTime t;
#ifdef _WIN32
t.S = _mkgmtime(ptm);
#else
t.S = timegm(ptm);
#endif
if (t.S < 0)
t.S = 0;
return t;
}
tm* GetGmtTime(const ImPlotTime& t, tm* ptm)
{
#ifdef _WIN32
if (gmtime_s(ptm, &t.S) == 0)
return ptm;
else
return NULL;
#else
return gmtime_r(&t.S, ptm);
#endif
}
ImPlotTime MkLocTime(struct tm *ptm) {
ImPlotTime t;
t.S = mktime(ptm);
if (t.S < 0)
t.S = 0;
return t;
}
tm* GetLocTime(const ImPlotTime& t, tm* ptm) {
#ifdef _WIN32
if (localtime_s(ptm, &t.S) == 0)
return ptm;
else
return NULL;
#else
return localtime_r(&t.S, ptm);
#endif
}
inline ImPlotTime MkTime(struct tm *ptm) {
if (GetStyle().UseLocalTime)
return MkLocTime(ptm);
else
return MkGmtTime(ptm);
}
inline tm* GetTime(const ImPlotTime& t, tm* ptm) {
if (GetStyle().UseLocalTime)
return GetLocTime(t,ptm);
else
return GetGmtTime(t,ptm);
}
ImPlotTime MakeTime(int year, int month, int day, int hour, int min, int sec, int us) {
tm& Tm = GImPlot->Tm;
int yr = year - 1900;
if (yr < 0)
yr = 0;
sec = sec + us / 1000000;
us = us % 1000000;
Tm.tm_sec = sec;
Tm.tm_min = min;
Tm.tm_hour = hour;
Tm.tm_mday = day;
Tm.tm_mon = month;
Tm.tm_year = yr;
ImPlotTime t = MkTime(&Tm);
t.Us = us;
return t;
}
int GetYear(const ImPlotTime& t) {
tm& Tm = GImPlot->Tm;
GetTime(t, &Tm);
return Tm.tm_year + 1900;
}
ImPlotTime AddTime(const ImPlotTime& t, ImPlotTimeUnit unit, int count) {
tm& Tm = GImPlot->Tm;
ImPlotTime t_out = t;
switch(unit) {
case ImPlotTimeUnit_Us: t_out.Us += count; break;
case ImPlotTimeUnit_Ms: t_out.Us += count * 1000; break;
case ImPlotTimeUnit_S: t_out.S += count; break;
case ImPlotTimeUnit_Min: t_out.S += count * 60; break;
case ImPlotTimeUnit_Hr: t_out.S += count * 3600; break;
case ImPlotTimeUnit_Day: t_out.S += count * 86400; break;
case ImPlotTimeUnit_Mo: for (int i = 0; i < abs(count); ++i) {
GetTime(t_out, &Tm);
if (count > 0)
t_out.S += 86400 * GetDaysInMonth(Tm.tm_year + 1900, Tm.tm_mon);
else if (count < 0)
t_out.S -= 86400 * GetDaysInMonth(Tm.tm_year + 1900 - (Tm.tm_mon == 0 ? 1 : 0), Tm.tm_mon == 0 ? 11 : Tm.tm_mon - 1); // NOT WORKING
}
break;
case ImPlotTimeUnit_Yr: for (int i = 0; i < abs(count); ++i) {
if (count > 0)
t_out.S += 86400 * (365 + (int)IsLeapYear(GetYear(t_out)));
else if (count < 0)
t_out.S -= 86400 * (365 + (int)IsLeapYear(GetYear(t_out) - 1));
// this is incorrect if leap year and we are past Feb 28
}
break;
default: break;
}
t_out.RollOver();
return t_out;
}
ImPlotTime FloorTime(const ImPlotTime& t, ImPlotTimeUnit unit) {
GetTime(t, &GImPlot->Tm);
switch (unit) {
case ImPlotTimeUnit_S: return ImPlotTime(t.S, 0);
case ImPlotTimeUnit_Ms: return ImPlotTime(t.S, (t.Us / 1000) * 1000);