forked from ocornut/imgui
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathimgui_demo.cpp
8590 lines (7799 loc) · 431 KB
/
imgui_demo.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
// dear imgui, v1.90.6 WIP
// (demo code)
// Help:
// - Read FAQ at http://dearimgui.com/faq
// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
// - Need help integrating Dear ImGui in your codebase?
// - Read Getting Started https://github.com/ocornut/imgui/wiki/Getting-Started
// - Read 'Programmer guide' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
// Read top of imgui.cpp and imgui.h for many details, documentation, comments, links.
// Get the latest version at https://github.com/ocornut/imgui
//---------------------------------------------------
// PLEASE DO NOT REMOVE THIS FILE FROM YOUR PROJECT!
//---------------------------------------------------
// Message to the person tempted to delete this file when integrating Dear ImGui into their codebase:
// Think again! It is the most useful reference code that you and other coders will want to refer to and call.
// Have the ImGui::ShowDemoWindow() function wired in an always-available debug menu of your game/app!
// Also include Metrics! ItemPicker! DebugLog! and other debug features.
// Removing this file from your project is hindering access to documentation for everyone in your team,
// likely leading you to poorer usage of the library.
// Everything in this file will be stripped out by the linker if you don't call ImGui::ShowDemoWindow().
// If you want to link core Dear ImGui in your shipped builds but want a thorough guarantee that the demo will not be
// linked, you can setup your imconfig.h with #define IMGUI_DISABLE_DEMO_WINDOWS and those functions will be empty.
// In another situation, whenever you have Dear ImGui available you probably want this to be available for reference.
// Thank you,
// -Your beloved friend, imgui_demo.cpp (which you won't delete)
//--------------------------------------------
// ABOUT THE MEANING OF THE 'static' KEYWORD:
//--------------------------------------------
// In this demo code, we frequently use 'static' variables inside functions.
// A static variable persists across calls. It is essentially a global variable but declared inside the scope of the function.
// Think of "static int n = 0;" as "global int n = 0;" !
// We do this IN THE DEMO because we want:
// - to gather code and data in the same place.
// - to make the demo source code faster to read, faster to change, smaller in size.
// - it is also a convenient way of storing simple UI related information as long as your function
// doesn't need to be reentrant or used in multiple threads.
// This might be a pattern you will want to use in your code, but most of the data you would be working
// with in a complex codebase is likely going to be stored outside your functions.
//-----------------------------------------
// ABOUT THE CODING STYLE OF OUR DEMO CODE
//-----------------------------------------
// The Demo code in this file is designed to be easy to copy-and-paste into your application!
// Because of this:
// - We never omit the ImGui:: prefix when calling functions, even though most code here is in the same namespace.
// - We try to declare static variables in the local scope, as close as possible to the code using them.
// - We never use any of the helpers/facilities used internally by Dear ImGui, unless available in the public API.
// - We never use maths operators on ImVec2/ImVec4. For our other sources files we use them, and they are provided
// by imgui.h using the IMGUI_DEFINE_MATH_OPERATORS define. For your own sources file they are optional
// and require you either enable those, either provide your own via IM_VEC2_CLASS_EXTRA in imconfig.h.
// Because we can't assume anything about your support of maths operators, we cannot use them in imgui_demo.cpp.
// Navigating this file:
// - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
// - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
/*
Index of this file:
// [SECTION] Forward Declarations
// [SECTION] Helpers
// [SECTION] Demo Window / ShowDemoWindow()
// - ShowDemoWindow()
// - sub section: ShowDemoWindowWidgets()
// - sub section: ShowDemoWindowLayout()
// - sub section: ShowDemoWindowPopups()
// - sub section: ShowDemoWindowTables()
// - sub section: ShowDemoWindowInputs()
// [SECTION] About Window / ShowAboutWindow()
// [SECTION] Style Editor / ShowStyleEditor()
// [SECTION] User Guide / ShowUserGuide()
// [SECTION] Example App: Main Menu Bar / ShowExampleAppMainMenuBar()
// [SECTION] Example App: Debug Console / ShowExampleAppConsole()
// [SECTION] Example App: Debug Log / ShowExampleAppLog()
// [SECTION] Example App: Simple Layout / ShowExampleAppLayout()
// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
// [SECTION] Example App: Long Text / ShowExampleAppLongText()
// [SECTION] Example App: Auto Resize / ShowExampleAppAutoResize()
// [SECTION] Example App: Constrained Resize / ShowExampleAppConstrainedResize()
// [SECTION] Example App: Simple overlay / ShowExampleAppSimpleOverlay()
// [SECTION] Example App: Fullscreen window / ShowExampleAppFullscreen()
// [SECTION] Example App: Manipulating window titles / ShowExampleAppWindowTitles()
// [SECTION] Example App: Custom Rendering using ImDrawList API / ShowExampleAppCustomRendering()
// [SECTION] Example App: Documents Handling / ShowExampleAppDocuments()
*/
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
// System includes
#include <ctype.h> // toupper
#include <limits.h> // INT_MIN, INT_MAX
#include <math.h> // sqrtf, powf, cosf, sinf, floorf, ceilf
#include <stdio.h> // vsnprintf, sscanf, printf
#include <stdlib.h> // NULL, malloc, free, atoi
#include <stdint.h> // intptr_t
#if !defined(_MSC_VER) || _MSC_VER >= 1800
#include <inttypes.h> // PRId64/PRIu64, not avail in some MinGW headers.
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to an 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wdeprecated-declarations" // warning: 'xx' is deprecated: The POSIX name for this.. // for strdup used in demo code (so user can copy & paste the code)
#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast" // warning: cast to 'void *' from smaller integer type
#pragma clang diagnostic ignored "-Wformat-security" // warning: format string is not a string literal
#pragma clang diagnostic ignored "-Wexit-time-destructors" // warning: declaration requires an exit-time destructor // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
#pragma clang diagnostic ignored "-Wunused-macros" // warning: macro is not used // we define snprintf/vsnprintf on Windows so they are available, but not always used.
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#pragma clang diagnostic ignored "-Wunsafe-buffer-usage" // warning: 'xxx' is an unsafe pointer used for buffer access
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wint-to-pointer-cast" // warning: cast to pointer from integer of different size
#pragma GCC diagnostic ignored "-Wformat-security" // warning: format string is not a string literal (potentially insecure)
#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
#pragma GCC diagnostic ignored "-Wmisleading-indentation" // [__GNUC__ >= 6] warning: this 'if' clause does not guard this statement // GCC 6.0+ only. See #883 on GitHub.
#endif
// Play it nice with Windows users (Update: May 2018, Notepad now supports Unix-style carriage returns!)
#ifdef _WIN32
#define IM_NEWLINE "\r\n"
#else
#define IM_NEWLINE "\n"
#endif
// Helpers
#if defined(_MSC_VER) && !defined(snprintf)
#define snprintf _snprintf
#endif
#if defined(_MSC_VER) && !defined(vsnprintf)
#define vsnprintf _vsnprintf
#endif
// Format specifiers for 64-bit values (hasn't been decently standardized before VS2013)
#if !defined(PRId64) && defined(_MSC_VER)
#define PRId64 "I64d"
#define PRIu64 "I64u"
#elif !defined(PRId64)
#define PRId64 "lld"
#define PRIu64 "llu"
#endif
// Helpers macros
// We normally try to not use many helpers in imgui_demo.cpp in order to make code easier to copy and paste,
// but making an exception here as those are largely simplifying code...
// In other imgui sources we can use nicer internal functions from imgui_internal.h (ImMin/ImMax) but not in the demo.
#define IM_MIN(A, B) (((A) < (B)) ? (A) : (B))
#define IM_MAX(A, B) (((A) >= (B)) ? (A) : (B))
#define IM_CLAMP(V, MN, MX) ((V) < (MN) ? (MN) : (V) > (MX) ? (MX) : (V))
// Enforce cdecl calling convention for functions called by the standard library,
// in case compilation settings changed the default to e.g. __vectorcall
#ifndef IMGUI_CDECL
#ifdef _MSC_VER
#define IMGUI_CDECL __cdecl
#else
#define IMGUI_CDECL
#endif
#endif
//-----------------------------------------------------------------------------
// [SECTION] Forward Declarations, Helpers
//-----------------------------------------------------------------------------
#if !defined(IMGUI_DISABLE_DEMO_WINDOWS)
// Forward Declarations
static void ShowExampleAppMainMenuBar();
static void ShowExampleAppConsole(bool* p_open);
static void ShowExampleAppCustomRendering(bool* p_open);
static void ShowExampleAppDocuments(bool* p_open);
static void ShowExampleAppLog(bool* p_open);
static void ShowExampleAppLayout(bool* p_open);
static void ShowExampleAppPropertyEditor(bool* p_open);
static void ShowExampleAppSimpleOverlay(bool* p_open);
static void ShowExampleAppAutoResize(bool* p_open);
static void ShowExampleAppConstrainedResize(bool* p_open);
static void ShowExampleAppFullscreen(bool* p_open);
static void ShowExampleAppLongText(bool* p_open);
static void ShowExampleAppWindowTitles(bool* p_open);
static void ShowExampleMenuFile();
// We split the contents of the big ShowDemoWindow() function into smaller functions
// (because the link time of very large functions grow non-linearly)
static void ShowDemoWindowWidgets();
static void ShowDemoWindowLayout();
static void ShowDemoWindowPopups();
static void ShowDemoWindowTables();
static void ShowDemoWindowColumns();
static void ShowDemoWindowInputs();
//-----------------------------------------------------------------------------
// [SECTION] Helpers
//-----------------------------------------------------------------------------
// Helper to display a little (?) mark which shows a tooltip when hovered.
// In your own code you may want to display an actual icon if you are using a merged icon fonts (see docs/FONTS.md)
static void HelpMarker(const char* desc)
{
ImGui::TextDisabled("(?)");
if (ImGui::BeginItemTooltip())
{
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
// Helper to wire demo markers located in code to an interactive browser
typedef void (*ImGuiDemoMarkerCallback)(const char* file, int line, const char* section, void* user_data);
extern ImGuiDemoMarkerCallback GImGuiDemoMarkerCallback;
extern void* GImGuiDemoMarkerCallbackUserData;
ImGuiDemoMarkerCallback GImGuiDemoMarkerCallback = NULL;
void* GImGuiDemoMarkerCallbackUserData = NULL;
#define IMGUI_DEMO_MARKER(section) do { if (GImGuiDemoMarkerCallback != NULL) GImGuiDemoMarkerCallback(__FILE__, __LINE__, section, GImGuiDemoMarkerCallbackUserData); } while (0)
//-----------------------------------------------------------------------------
// [SECTION] Demo Window / ShowDemoWindow()
//-----------------------------------------------------------------------------
// - ShowDemoWindow()
// - ShowDemoWindowWidgets()
// - ShowDemoWindowLayout()
// - ShowDemoWindowPopups()
// - ShowDemoWindowTables()
// - ShowDemoWindowColumns()
// - ShowDemoWindowInputs()
//-----------------------------------------------------------------------------
// Demonstrate most Dear ImGui features (this is big function!)
// You may execute this function to experiment with the UI and understand what it does.
// You may then search for keywords in the code when you are interested by a specific feature.
void ImGui::ShowDemoWindow(bool* p_open)
{
// Exceptionally add an extra assert here for people confused about initial Dear ImGui setup
// Most functions would normally just assert/crash if the context is missing.
IM_ASSERT(ImGui::GetCurrentContext() != NULL && "Missing Dear ImGui context. Refer to examples app!");
// Examples Apps (accessible from the "Examples" menu)
static bool show_app_main_menu_bar = false;
static bool show_app_console = false;
static bool show_app_custom_rendering = false;
static bool show_app_documents = false;
static bool show_app_log = false;
static bool show_app_layout = false;
static bool show_app_property_editor = false;
static bool show_app_simple_overlay = false;
static bool show_app_auto_resize = false;
static bool show_app_constrained_resize = false;
static bool show_app_fullscreen = false;
static bool show_app_long_text = false;
static bool show_app_window_titles = false;
if (show_app_main_menu_bar) ShowExampleAppMainMenuBar();
if (show_app_documents) ShowExampleAppDocuments(&show_app_documents);
if (show_app_console) ShowExampleAppConsole(&show_app_console);
if (show_app_custom_rendering) ShowExampleAppCustomRendering(&show_app_custom_rendering);
if (show_app_log) ShowExampleAppLog(&show_app_log);
if (show_app_layout) ShowExampleAppLayout(&show_app_layout);
if (show_app_property_editor) ShowExampleAppPropertyEditor(&show_app_property_editor);
if (show_app_simple_overlay) ShowExampleAppSimpleOverlay(&show_app_simple_overlay);
if (show_app_auto_resize) ShowExampleAppAutoResize(&show_app_auto_resize);
if (show_app_constrained_resize) ShowExampleAppConstrainedResize(&show_app_constrained_resize);
if (show_app_fullscreen) ShowExampleAppFullscreen(&show_app_fullscreen);
if (show_app_long_text) ShowExampleAppLongText(&show_app_long_text);
if (show_app_window_titles) ShowExampleAppWindowTitles(&show_app_window_titles);
// Dear ImGui Tools (accessible from the "Tools" menu)
static bool show_tool_metrics = false;
static bool show_tool_debug_log = false;
static bool show_tool_id_stack_tool = false;
static bool show_tool_style_editor = false;
static bool show_tool_about = false;
if (show_tool_metrics)
ImGui::ShowMetricsWindow(&show_tool_metrics);
if (show_tool_debug_log)
ImGui::ShowDebugLogWindow(&show_tool_debug_log);
if (show_tool_id_stack_tool)
ImGui::ShowIDStackToolWindow(&show_tool_id_stack_tool);
if (show_tool_style_editor)
{
ImGui::Begin("Dear ImGui Style Editor", &show_tool_style_editor);
ImGui::ShowStyleEditor();
ImGui::End();
}
if (show_tool_about)
ImGui::ShowAboutWindow(&show_tool_about);
// Demonstrate the various window flags. Typically you would just use the default!
static bool no_titlebar = false;
static bool no_scrollbar = false;
static bool no_menu = false;
static bool no_move = false;
static bool no_resize = false;
static bool no_collapse = false;
static bool no_close = false;
static bool no_nav = false;
static bool no_background = false;
static bool no_bring_to_front = false;
static bool unsaved_document = false;
ImGuiWindowFlags window_flags = 0;
if (no_titlebar) window_flags |= ImGuiWindowFlags_NoTitleBar;
if (no_scrollbar) window_flags |= ImGuiWindowFlags_NoScrollbar;
if (!no_menu) window_flags |= ImGuiWindowFlags_MenuBar;
if (no_move) window_flags |= ImGuiWindowFlags_NoMove;
if (no_resize) window_flags |= ImGuiWindowFlags_NoResize;
if (no_collapse) window_flags |= ImGuiWindowFlags_NoCollapse;
if (no_nav) window_flags |= ImGuiWindowFlags_NoNav;
if (no_background) window_flags |= ImGuiWindowFlags_NoBackground;
if (no_bring_to_front) window_flags |= ImGuiWindowFlags_NoBringToFrontOnFocus;
if (unsaved_document) window_flags |= ImGuiWindowFlags_UnsavedDocument;
if (no_close) p_open = NULL; // Don't pass our bool* to Begin
// We specify a default position/size in case there's no data in the .ini file.
// We only do it to make the demo applications a little more welcoming, but typically this isn't required.
const ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui::SetNextWindowPos(ImVec2(main_viewport->WorkPos.x + 650, main_viewport->WorkPos.y + 20), ImGuiCond_FirstUseEver);
ImGui::SetNextWindowSize(ImVec2(550, 680), ImGuiCond_FirstUseEver);
// Main body of the Demo window starts here.
if (!ImGui::Begin("Dear ImGui Demo", p_open, window_flags))
{
// Early out if the window is collapsed, as an optimization.
ImGui::End();
return;
}
// Most "big" widgets share a common width settings by default. See 'Demo->Layout->Widgets Width' for details.
// e.g. Use 2/3 of the space for widgets and 1/3 for labels (right align)
//ImGui::PushItemWidth(-ImGui::GetWindowWidth() * 0.35f);
// e.g. Leave a fixed amount of width for labels (by passing a negative value), the rest goes to widgets.
ImGui::PushItemWidth(ImGui::GetFontSize() * -12);
// Menu Bar
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("Menu"))
{
IMGUI_DEMO_MARKER("Menu/File");
ShowExampleMenuFile();
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Examples"))
{
IMGUI_DEMO_MARKER("Menu/Examples");
ImGui::MenuItem("Main menu bar", NULL, &show_app_main_menu_bar);
ImGui::SeparatorText("Mini apps");
ImGui::MenuItem("Console", NULL, &show_app_console);
ImGui::MenuItem("Custom rendering", NULL, &show_app_custom_rendering);
ImGui::MenuItem("Documents", NULL, &show_app_documents);
ImGui::MenuItem("Log", NULL, &show_app_log);
ImGui::MenuItem("Property editor", NULL, &show_app_property_editor);
ImGui::MenuItem("Simple layout", NULL, &show_app_layout);
ImGui::MenuItem("Simple overlay", NULL, &show_app_simple_overlay);
ImGui::SeparatorText("Concepts");
ImGui::MenuItem("Auto-resizing window", NULL, &show_app_auto_resize);
ImGui::MenuItem("Constrained-resizing window", NULL, &show_app_constrained_resize);
ImGui::MenuItem("Fullscreen window", NULL, &show_app_fullscreen);
ImGui::MenuItem("Long text display", NULL, &show_app_long_text);
ImGui::MenuItem("Manipulating window titles", NULL, &show_app_window_titles);
ImGui::EndMenu();
}
//if (ImGui::MenuItem("MenuItem")) {} // You can also use MenuItem() inside a menu bar!
if (ImGui::BeginMenu("Tools"))
{
IMGUI_DEMO_MARKER("Menu/Tools");
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
const bool has_debug_tools = true;
#else
const bool has_debug_tools = false;
#endif
ImGui::MenuItem("Metrics/Debugger", NULL, &show_tool_metrics, has_debug_tools);
ImGui::MenuItem("Debug Log", NULL, &show_tool_debug_log, has_debug_tools);
ImGui::MenuItem("ID Stack Tool", NULL, &show_tool_id_stack_tool, has_debug_tools);
ImGui::MenuItem("Style Editor", NULL, &show_tool_style_editor);
bool is_debugger_present = ImGui::GetIO().ConfigDebugIsDebuggerPresent;
if (ImGui::MenuItem("Item Picker", NULL, false, has_debug_tools && is_debugger_present))
ImGui::DebugStartItemPicker();
if (!is_debugger_present)
ImGui::SetItemTooltip("Requires io.ConfigDebugIsDebuggerPresent=true to be set.\n\nWe otherwise disable the menu option to avoid casual users crashing the application.\n\nYou can however always access the Item Picker in Metrics->Tools.");
ImGui::Separator();
ImGui::MenuItem("About Dear ImGui", NULL, &show_tool_about);
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
ImGui::Text("dear imgui says hello! (%s) (%d)", IMGUI_VERSION, IMGUI_VERSION_NUM);
ImGui::Spacing();
IMGUI_DEMO_MARKER("Help");
if (ImGui::CollapsingHeader("Help"))
{
ImGui::SeparatorText("ABOUT THIS DEMO:");
ImGui::BulletText("Sections below are demonstrating many aspects of the library.");
ImGui::BulletText("The \"Examples\" menu above leads to more demo contents.");
ImGui::BulletText("The \"Tools\" menu above gives access to: About Box, Style Editor,\n"
"and Metrics/Debugger (general purpose Dear ImGui debugging tool).");
ImGui::SeparatorText("PROGRAMMER GUIDE:");
ImGui::BulletText("See the ShowDemoWindow() code in imgui_demo.cpp. <- you are here!");
ImGui::BulletText("See comments in imgui.cpp.");
ImGui::BulletText("See example applications in the examples/ folder.");
ImGui::BulletText("Read the FAQ at https://www.dearimgui.com/faq/");
ImGui::BulletText("Set 'io.ConfigFlags |= NavEnableKeyboard' for keyboard controls.");
ImGui::BulletText("Set 'io.ConfigFlags |= NavEnableGamepad' for gamepad controls.");
ImGui::SeparatorText("USER GUIDE:");
ImGui::ShowUserGuide();
}
IMGUI_DEMO_MARKER("Configuration");
if (ImGui::CollapsingHeader("Configuration"))
{
ImGuiIO& io = ImGui::GetIO();
if (ImGui::TreeNode("Configuration##2"))
{
ImGui::SeparatorText("General");
ImGui::CheckboxFlags("io.ConfigFlags: NavEnableKeyboard", &io.ConfigFlags, ImGuiConfigFlags_NavEnableKeyboard);
ImGui::SameLine(); HelpMarker("Enable keyboard controls.");
ImGui::CheckboxFlags("io.ConfigFlags: NavEnableGamepad", &io.ConfigFlags, ImGuiConfigFlags_NavEnableGamepad);
ImGui::SameLine(); HelpMarker("Enable gamepad controls. Require backend to set io.BackendFlags |= ImGuiBackendFlags_HasGamepad.\n\nRead instructions in imgui.cpp for details.");
ImGui::CheckboxFlags("io.ConfigFlags: NavEnableSetMousePos", &io.ConfigFlags, ImGuiConfigFlags_NavEnableSetMousePos);
ImGui::SameLine(); HelpMarker("Instruct navigation to move the mouse cursor. See comment for ImGuiConfigFlags_NavEnableSetMousePos.");
ImGui::CheckboxFlags("io.ConfigFlags: NoMouse", &io.ConfigFlags, ImGuiConfigFlags_NoMouse);
if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)
{
// The "NoMouse" option can get us stuck with a disabled mouse! Let's provide an alternative way to fix it:
if (fmodf((float)ImGui::GetTime(), 0.40f) < 0.20f)
{
ImGui::SameLine();
ImGui::Text("<<PRESS SPACE TO DISABLE>>");
}
if (ImGui::IsKeyPressed(ImGuiKey_Space))
io.ConfigFlags &= ~ImGuiConfigFlags_NoMouse;
}
ImGui::CheckboxFlags("io.ConfigFlags: NoMouseCursorChange", &io.ConfigFlags, ImGuiConfigFlags_NoMouseCursorChange);
ImGui::SameLine(); HelpMarker("Instruct backend to not alter mouse cursor shape and visibility.");
ImGui::Checkbox("io.ConfigInputTrickleEventQueue", &io.ConfigInputTrickleEventQueue);
ImGui::SameLine(); HelpMarker("Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.");
ImGui::Checkbox("io.MouseDrawCursor", &io.MouseDrawCursor);
ImGui::SameLine(); HelpMarker("Instruct Dear ImGui to render a mouse cursor itself. Note that a mouse cursor rendered via your application GPU rendering path will feel more laggy than hardware cursor, but will be more in sync with your other visuals.\n\nSome desktop applications may use both kinds of cursors (e.g. enable software cursor only when resizing/dragging something).");
ImGui::SeparatorText("Widgets");
ImGui::Checkbox("io.ConfigInputTextCursorBlink", &io.ConfigInputTextCursorBlink);
ImGui::SameLine(); HelpMarker("Enable blinking cursor (optional as some users consider it to be distracting).");
ImGui::Checkbox("io.ConfigInputTextEnterKeepActive", &io.ConfigInputTextEnterKeepActive);
ImGui::SameLine(); HelpMarker("Pressing Enter will keep item active and select contents (single-line only).");
ImGui::Checkbox("io.ConfigDragClickToInputText", &io.ConfigDragClickToInputText);
ImGui::SameLine(); HelpMarker("Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving).");
ImGui::Checkbox("io.ConfigWindowsResizeFromEdges", &io.ConfigWindowsResizeFromEdges);
ImGui::SameLine(); HelpMarker("Enable resizing of windows from their edges and from the lower-left corner.\nThis requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback.");
ImGui::Checkbox("io.ConfigWindowsMoveFromTitleBarOnly", &io.ConfigWindowsMoveFromTitleBarOnly);
ImGui::Checkbox("io.ConfigMacOSXBehaviors", &io.ConfigMacOSXBehaviors);
ImGui::Text("Also see Style->Rendering for rendering options.");
ImGui::SeparatorText("Debug");
ImGui::Checkbox("io.ConfigDebugIsDebuggerPresent", &io.ConfigDebugIsDebuggerPresent);
ImGui::SameLine(); HelpMarker("Enable various tools calling IM_DEBUG_BREAK().\n\nRequires a debugger being attached, otherwise IM_DEBUG_BREAK() options will appear to crash your application.");
ImGui::BeginDisabled();
ImGui::Checkbox("io.ConfigDebugBeginReturnValueOnce", &io.ConfigDebugBeginReturnValueOnce); // .
ImGui::EndDisabled();
ImGui::SameLine(); HelpMarker("First calls to Begin()/BeginChild() will return false.\n\nTHIS OPTION IS DISABLED because it needs to be set at application boot-time to make sense. Showing the disabled option is a way to make this feature easier to discover.");
ImGui::Checkbox("io.ConfigDebugBeginReturnValueLoop", &io.ConfigDebugBeginReturnValueLoop);
ImGui::SameLine(); HelpMarker("Some calls to Begin()/BeginChild() will return false.\n\nWill cycle through window depths then repeat. Windows should be flickering while running.");
ImGui::Checkbox("io.ConfigDebugIgnoreFocusLoss", &io.ConfigDebugIgnoreFocusLoss);
ImGui::SameLine(); HelpMarker("Option to deactivate io.AddFocusEvent(false) handling. May facilitate interactions with a debugger when focus loss leads to clearing inputs data.");
ImGui::Checkbox("io.ConfigDebugIniSettings", &io.ConfigDebugIniSettings);
ImGui::SameLine(); HelpMarker("Option to save .ini data with extra comments (particularly helpful for Docking, but makes saving slower).");
ImGui::TreePop();
ImGui::Spacing();
}
IMGUI_DEMO_MARKER("Configuration/Backend Flags");
if (ImGui::TreeNode("Backend Flags"))
{
HelpMarker(
"Those flags are set by the backends (imgui_impl_xxx files) to specify their capabilities.\n"
"Here we expose them as read-only fields to avoid breaking interactions with your backend.");
// FIXME: Maybe we need a BeginReadonly() equivalent to keep label bright?
ImGui::BeginDisabled();
ImGui::CheckboxFlags("io.BackendFlags: HasGamepad", &io.BackendFlags, ImGuiBackendFlags_HasGamepad);
ImGui::CheckboxFlags("io.BackendFlags: HasMouseCursors", &io.BackendFlags, ImGuiBackendFlags_HasMouseCursors);
ImGui::CheckboxFlags("io.BackendFlags: HasSetMousePos", &io.BackendFlags, ImGuiBackendFlags_HasSetMousePos);
ImGui::CheckboxFlags("io.BackendFlags: RendererHasVtxOffset", &io.BackendFlags, ImGuiBackendFlags_RendererHasVtxOffset);
ImGui::EndDisabled();
ImGui::TreePop();
ImGui::Spacing();
}
IMGUI_DEMO_MARKER("Configuration/Style");
if (ImGui::TreeNode("Style"))
{
HelpMarker("The same contents can be accessed in 'Tools->Style Editor' or by calling the ShowStyleEditor() function.");
ImGui::ShowStyleEditor();
ImGui::TreePop();
ImGui::Spacing();
}
IMGUI_DEMO_MARKER("Configuration/Capture, Logging");
if (ImGui::TreeNode("Capture/Logging"))
{
HelpMarker(
"The logging API redirects all text output so you can easily capture the content of "
"a window or a block. Tree nodes can be automatically expanded.\n"
"Try opening any of the contents below in this window and then click one of the \"Log To\" button.");
ImGui::LogButtons();
HelpMarker("You can also call ImGui::LogText() to output directly to the log without a visual output.");
if (ImGui::Button("Copy \"Hello, world!\" to clipboard"))
{
ImGui::LogToClipboard();
ImGui::LogText("Hello, world!");
ImGui::LogFinish();
}
ImGui::TreePop();
}
}
IMGUI_DEMO_MARKER("Window options");
if (ImGui::CollapsingHeader("Window options"))
{
if (ImGui::BeginTable("split", 3))
{
ImGui::TableNextColumn(); ImGui::Checkbox("No titlebar", &no_titlebar);
ImGui::TableNextColumn(); ImGui::Checkbox("No scrollbar", &no_scrollbar);
ImGui::TableNextColumn(); ImGui::Checkbox("No menu", &no_menu);
ImGui::TableNextColumn(); ImGui::Checkbox("No move", &no_move);
ImGui::TableNextColumn(); ImGui::Checkbox("No resize", &no_resize);
ImGui::TableNextColumn(); ImGui::Checkbox("No collapse", &no_collapse);
ImGui::TableNextColumn(); ImGui::Checkbox("No close", &no_close);
ImGui::TableNextColumn(); ImGui::Checkbox("No nav", &no_nav);
ImGui::TableNextColumn(); ImGui::Checkbox("No background", &no_background);
ImGui::TableNextColumn(); ImGui::Checkbox("No bring to front", &no_bring_to_front);
ImGui::TableNextColumn(); ImGui::Checkbox("Unsaved document", &unsaved_document);
ImGui::EndTable();
}
}
// All demo contents
ShowDemoWindowWidgets();
ShowDemoWindowLayout();
ShowDemoWindowPopups();
ShowDemoWindowTables();
ShowDemoWindowInputs();
// End of ShowDemoWindow()
ImGui::PopItemWidth();
ImGui::End();
}
static void ShowDemoWindowWidgets()
{
IMGUI_DEMO_MARKER("Widgets");
if (!ImGui::CollapsingHeader("Widgets"))
return;
static bool disable_all = false; // The Checkbox for that is inside the "Disabled" section at the bottom
if (disable_all)
ImGui::BeginDisabled();
IMGUI_DEMO_MARKER("Widgets/Basic");
if (ImGui::TreeNode("Basic"))
{
ImGui::SeparatorText("General");
IMGUI_DEMO_MARKER("Widgets/Basic/Button");
static int clicked = 0;
if (ImGui::Button("Button"))
clicked++;
if (clicked & 1)
{
ImGui::SameLine();
ImGui::Text("Thanks for clicking me!");
}
IMGUI_DEMO_MARKER("Widgets/Basic/Checkbox");
static bool check = true;
ImGui::Checkbox("checkbox", &check);
IMGUI_DEMO_MARKER("Widgets/Basic/RadioButton");
static int e = 0;
ImGui::RadioButton("radio a", &e, 0); ImGui::SameLine();
ImGui::RadioButton("radio b", &e, 1); ImGui::SameLine();
ImGui::RadioButton("radio c", &e, 2);
// Color buttons, demonstrate using PushID() to add unique identifier in the ID stack, and changing style.
IMGUI_DEMO_MARKER("Widgets/Basic/Buttons (Colored)");
for (int i = 0; i < 7; i++)
{
if (i > 0)
ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(i / 7.0f, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(i / 7.0f, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(i / 7.0f, 0.8f, 0.8f));
ImGui::Button("Click");
ImGui::PopStyleColor(3);
ImGui::PopID();
}
// Use AlignTextToFramePadding() to align text baseline to the baseline of framed widgets elements
// (otherwise a Text+SameLine+Button sequence will have the text a little too high by default!)
// See 'Demo->Layout->Text Baseline Alignment' for details.
ImGui::AlignTextToFramePadding();
ImGui::Text("Hold to repeat:");
ImGui::SameLine();
// Arrow buttons with Repeater
IMGUI_DEMO_MARKER("Widgets/Basic/Buttons (Repeating)");
static int counter = 0;
float spacing = ImGui::GetStyle().ItemInnerSpacing.x;
ImGui::PushButtonRepeat(true);
if (ImGui::ArrowButton("##left", ImGuiDir_Left)) { counter--; }
ImGui::SameLine(0.0f, spacing);
if (ImGui::ArrowButton("##right", ImGuiDir_Right)) { counter++; }
ImGui::PopButtonRepeat();
ImGui::SameLine();
ImGui::Text("%d", counter);
ImGui::Button("Tooltip");
ImGui::SetItemTooltip("I am a tooltip");
ImGui::LabelText("label", "Value");
ImGui::SeparatorText("Inputs");
{
// To wire InputText() with std::string or any other custom string type,
// see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
IMGUI_DEMO_MARKER("Widgets/Basic/InputText");
static char str0[128] = "Hello, world!";
ImGui::InputText("input text", str0, IM_ARRAYSIZE(str0));
ImGui::SameLine(); HelpMarker(
"USER:\n"
"Hold SHIFT or use mouse to select text.\n"
"CTRL+Left/Right to word jump.\n"
"CTRL+A or Double-Click to select all.\n"
"CTRL+X,CTRL+C,CTRL+V clipboard.\n"
"CTRL+Z,CTRL+Y undo/redo.\n"
"ESCAPE to revert.\n\n"
"PROGRAMMER:\n"
"You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputText() "
"to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example (this is not demonstrated "
"in imgui_demo.cpp).");
static char str1[128] = "";
ImGui::InputTextWithHint("input text (w/ hint)", "enter text here", str1, IM_ARRAYSIZE(str1));
IMGUI_DEMO_MARKER("Widgets/Basic/InputInt, InputFloat");
static int i0 = 123;
ImGui::InputInt("input int", &i0);
static float f0 = 0.001f;
ImGui::InputFloat("input float", &f0, 0.01f, 1.0f, "%.3f");
static double d0 = 999999.00000001;
ImGui::InputDouble("input double", &d0, 0.01f, 1.0f, "%.8f");
static float f1 = 1.e10f;
ImGui::InputFloat("input scientific", &f1, 0.0f, 0.0f, "%e");
ImGui::SameLine(); HelpMarker(
"You can input value using the scientific notation,\n"
" e.g. \"1e+8\" becomes \"100000000\".");
static float vec4a[4] = { 0.10f, 0.20f, 0.30f, 0.44f };
ImGui::InputFloat3("input float3", vec4a);
}
ImGui::SeparatorText("Drags");
{
IMGUI_DEMO_MARKER("Widgets/Basic/DragInt, DragFloat");
static int i1 = 50, i2 = 42;
ImGui::DragInt("drag int", &i1, 1);
ImGui::SameLine(); HelpMarker(
"Click and drag to edit value.\n"
"Hold SHIFT/ALT for faster/slower edit.\n"
"Double-click or CTRL+click to input value.");
ImGui::DragInt("drag int 0..100", &i2, 1, 0, 100, "%d%%", ImGuiSliderFlags_AlwaysClamp);
static float f1 = 1.00f, f2 = 0.0067f;
ImGui::DragFloat("drag float", &f1, 0.005f);
ImGui::DragFloat("drag small float", &f2, 0.0001f, 0.0f, 0.0f, "%.06f ns");
}
ImGui::SeparatorText("Sliders");
{
IMGUI_DEMO_MARKER("Widgets/Basic/SliderInt, SliderFloat");
static int i1 = 0;
ImGui::SliderInt("slider int", &i1, -1, 3);
ImGui::SameLine(); HelpMarker("CTRL+click to input value.");
static float f1 = 0.123f, f2 = 0.0f;
ImGui::SliderFloat("slider float", &f1, 0.0f, 1.0f, "ratio = %.3f");
ImGui::SliderFloat("slider float (log)", &f2, -10.0f, 10.0f, "%.4f", ImGuiSliderFlags_Logarithmic);
IMGUI_DEMO_MARKER("Widgets/Basic/SliderAngle");
static float angle = 0.0f;
ImGui::SliderAngle("slider angle", &angle);
// Using the format string to display a name instead of an integer.
// Here we completely omit '%d' from the format string, so it'll only display a name.
// This technique can also be used with DragInt().
IMGUI_DEMO_MARKER("Widgets/Basic/Slider (enum)");
enum Element { Element_Fire, Element_Earth, Element_Air, Element_Water, Element_COUNT };
static int elem = Element_Fire;
const char* elems_names[Element_COUNT] = { "Fire", "Earth", "Air", "Water" };
const char* elem_name = (elem >= 0 && elem < Element_COUNT) ? elems_names[elem] : "Unknown";
ImGui::SliderInt("slider enum", &elem, 0, Element_COUNT - 1, elem_name); // Use ImGuiSliderFlags_NoInput flag to disable CTRL+Click here.
ImGui::SameLine(); HelpMarker("Using the format string parameter to display a name instead of the underlying integer.");
}
ImGui::SeparatorText("Selectors/Pickers");
{
IMGUI_DEMO_MARKER("Widgets/Basic/ColorEdit3, ColorEdit4");
static float col1[3] = { 1.0f, 0.0f, 0.2f };
static float col2[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
ImGui::ColorEdit3("color 1", col1);
ImGui::SameLine(); HelpMarker(
"Click on the color square to open a color picker.\n"
"Click and hold to use drag and drop.\n"
"Right-click on the color square to show options.\n"
"CTRL+click on individual component to input value.\n");
ImGui::ColorEdit4("color 2", col2);
}
{
// Using the _simplified_ one-liner Combo() api here
// See "Combo" section for examples of how to use the more flexible BeginCombo()/EndCombo() api.
IMGUI_DEMO_MARKER("Widgets/Basic/Combo");
const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIIIIII", "JJJJ", "KKKKKKK" };
static int item_current = 0;
ImGui::Combo("combo", &item_current, items, IM_ARRAYSIZE(items));
ImGui::SameLine(); HelpMarker(
"Using the simplified one-liner Combo API here.\n"
"Refer to the \"Combo\" section below for an explanation of how to use the more flexible and general BeginCombo/EndCombo API.");
}
{
// Using the _simplified_ one-liner ListBox() api here
// See "List boxes" section for examples of how to use the more flexible BeginListBox()/EndListBox() api.
IMGUI_DEMO_MARKER("Widgets/Basic/ListBox");
const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
static int item_current = 1;
ImGui::ListBox("listbox", &item_current, items, IM_ARRAYSIZE(items), 4);
ImGui::SameLine(); HelpMarker(
"Using the simplified one-liner ListBox API here.\n"
"Refer to the \"List boxes\" section below for an explanation of how to use the more flexible and general BeginListBox/EndListBox API.");
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Tooltips");
if (ImGui::TreeNode("Tooltips"))
{
// Tooltips are windows following the mouse. They do not take focus away.
ImGui::SeparatorText("General");
// Typical use cases:
// - Short-form (text only): SetItemTooltip("Hello");
// - Short-form (any contents): if (BeginItemTooltip()) { Text("Hello"); EndTooltip(); }
// - Full-form (text only): if (IsItemHovered(...)) { SetTooltip("Hello"); }
// - Full-form (any contents): if (IsItemHovered(...) && BeginTooltip()) { Text("Hello"); EndTooltip(); }
HelpMarker(
"Tooltip are typically created by using a IsItemHovered() + SetTooltip() sequence.\n\n"
"We provide a helper SetItemTooltip() function to perform the two with standards flags.");
ImVec2 sz = ImVec2(-FLT_MIN, 0.0f);
ImGui::Button("Basic", sz);
ImGui::SetItemTooltip("I am a tooltip");
ImGui::Button("Fancy", sz);
if (ImGui::BeginItemTooltip())
{
ImGui::Text("I am a fancy tooltip");
static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
ImGui::PlotLines("Curve", arr, IM_ARRAYSIZE(arr));
ImGui::Text("Sin(time) = %f", sinf((float)ImGui::GetTime()));
ImGui::EndTooltip();
}
ImGui::SeparatorText("Always On");
// Showcase NOT relying on a IsItemHovered() to emit a tooltip.
// Here the tooltip is always emitted when 'always_on == true'.
static int always_on = 0;
ImGui::RadioButton("Off", &always_on, 0);
ImGui::SameLine();
ImGui::RadioButton("Always On (Simple)", &always_on, 1);
ImGui::SameLine();
ImGui::RadioButton("Always On (Advanced)", &always_on, 2);
if (always_on == 1)
ImGui::SetTooltip("I am following you around.");
else if (always_on == 2 && ImGui::BeginTooltip())
{
ImGui::ProgressBar(sinf((float)ImGui::GetTime()) * 0.5f + 0.5f, ImVec2(ImGui::GetFontSize() * 25, 0.0f));
ImGui::EndTooltip();
}
ImGui::SeparatorText("Custom");
HelpMarker(
"Passing ImGuiHoveredFlags_ForTooltip to IsItemHovered() is the preferred way to standardize"
"tooltip activation details across your application. You may however decide to use custom"
"flags for a specific tooltip instance.");
// The following examples are passed for documentation purpose but may not be useful to most users.
// Passing ImGuiHoveredFlags_ForTooltip to IsItemHovered() will pull ImGuiHoveredFlags flags values from
// 'style.HoverFlagsForTooltipMouse' or 'style.HoverFlagsForTooltipNav' depending on whether mouse or gamepad/keyboard is being used.
// With default settings, ImGuiHoveredFlags_ForTooltip is equivalent to ImGuiHoveredFlags_DelayShort + ImGuiHoveredFlags_Stationary.
ImGui::Button("Manual", sz);
if (ImGui::IsItemHovered(ImGuiHoveredFlags_ForTooltip))
ImGui::SetTooltip("I am a manually emitted tooltip.");
ImGui::Button("DelayNone", sz);
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayNone))
ImGui::SetTooltip("I am a tooltip with no delay.");
ImGui::Button("DelayShort", sz);
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort | ImGuiHoveredFlags_NoSharedDelay))
ImGui::SetTooltip("I am a tooltip with a short delay (%0.2f sec).", ImGui::GetStyle().HoverDelayShort);
ImGui::Button("DelayLong", sz);
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayNormal | ImGuiHoveredFlags_NoSharedDelay))
ImGui::SetTooltip("I am a tooltip with a long delay (%0.2f sec).", ImGui::GetStyle().HoverDelayNormal);
ImGui::Button("Stationary", sz);
if (ImGui::IsItemHovered(ImGuiHoveredFlags_Stationary))
ImGui::SetTooltip("I am a tooltip requiring mouse to be stationary before activating.");
// Using ImGuiHoveredFlags_ForTooltip will pull flags from 'style.HoverFlagsForTooltipMouse' or 'style.HoverFlagsForTooltipNav',
// which default value include the ImGuiHoveredFlags_AllowWhenDisabled flag.
// As a result, Set
ImGui::BeginDisabled();
ImGui::Button("Disabled item", sz);
ImGui::EndDisabled();
if (ImGui::IsItemHovered(ImGuiHoveredFlags_ForTooltip))
ImGui::SetTooltip("I am a a tooltip for a disabled item.");
ImGui::TreePop();
}
// Testing ImGuiOnceUponAFrame helper.
//static ImGuiOnceUponAFrame once;
//for (int i = 0; i < 5; i++)
// if (once)
// ImGui::Text("This will be displayed only once.");
IMGUI_DEMO_MARKER("Widgets/Tree Nodes");
if (ImGui::TreeNode("Tree Nodes"))
{
IMGUI_DEMO_MARKER("Widgets/Tree Nodes/Basic trees");
if (ImGui::TreeNode("Basic trees"))
{
for (int i = 0; i < 5; i++)
{
// Use SetNextItemOpen() so set the default state of a node to be open. We could
// also use TreeNodeEx() with the ImGuiTreeNodeFlags_DefaultOpen flag to achieve the same thing!
if (i == 0)
ImGui::SetNextItemOpen(true, ImGuiCond_Once);
// Here we use PushID() to generate a unique base ID, and then the "" used as TreeNode id won't conflict.
// An alternative to using 'PushID() + TreeNode("", ...)' to generate a unique ID is to use 'TreeNode((void*)(intptr_t)i, ...)',
// aka generate a dummy pointer-sized value to be hashed. The demo below uses that technique. Both are fine.
ImGui::PushID(i);
if (ImGui::TreeNode("", "Child %d", i))
{
ImGui::Text("blah blah");
ImGui::SameLine();
if (ImGui::SmallButton("button")) {}
ImGui::TreePop();
}
ImGui::PopID();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Tree Nodes/Advanced, with Selectable nodes");
if (ImGui::TreeNode("Advanced, with Selectable nodes"))
{
HelpMarker(
"This is a more typical looking tree with selectable nodes.\n"
"Click to select, CTRL+Click to toggle, click on arrows or double-click to open.");
static ImGuiTreeNodeFlags base_flags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick | ImGuiTreeNodeFlags_SpanAvailWidth;
static bool align_label_with_current_x_position = false;
static bool test_drag_and_drop = false;
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnArrow", &base_flags, ImGuiTreeNodeFlags_OpenOnArrow);
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnDoubleClick", &base_flags, ImGuiTreeNodeFlags_OpenOnDoubleClick);
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAvailWidth", &base_flags, ImGuiTreeNodeFlags_SpanAvailWidth); ImGui::SameLine(); HelpMarker("Extend hit area to all available width instead of allowing more items to be laid out after the node.");
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth", &base_flags, ImGuiTreeNodeFlags_SpanFullWidth);
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanTextWidth", &base_flags, ImGuiTreeNodeFlags_SpanTextWidth); ImGui::SameLine(); HelpMarker("Reduce hit area to the text label and a bit of margin.");
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAllColumns", &base_flags, ImGuiTreeNodeFlags_SpanAllColumns); ImGui::SameLine(); HelpMarker("For use in Tables only.");
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_AllowOverlap", &base_flags, ImGuiTreeNodeFlags_AllowOverlap);
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_Framed", &base_flags, ImGuiTreeNodeFlags_Framed); ImGui::SameLine(); HelpMarker("Draw frame with background (e.g. for CollapsingHeader)");
ImGui::Checkbox("Align label with current X position", &align_label_with_current_x_position);
ImGui::Checkbox("Test tree node as drag source", &test_drag_and_drop);
ImGui::Text("Hello!");
if (align_label_with_current_x_position)
ImGui::Unindent(ImGui::GetTreeNodeToLabelSpacing());
// 'selection_mask' is dumb representation of what may be user-side selection state.
// You may retain selection state inside or outside your objects in whatever format you see fit.
// 'node_clicked' is temporary storage of what node we have clicked to process selection at the end
/// of the loop. May be a pointer to your own node type, etc.
static int selection_mask = (1 << 2);
int node_clicked = -1;
for (int i = 0; i < 6; i++)
{
// Disable the default "open on single-click behavior" + set Selected flag according to our selection.
// To alter selection we use IsItemClicked() && !IsItemToggledOpen(), so clicking on an arrow doesn't alter selection.
ImGuiTreeNodeFlags node_flags = base_flags;
const bool is_selected = (selection_mask & (1 << i)) != 0;
if (is_selected)
node_flags |= ImGuiTreeNodeFlags_Selected;
if (i < 3)
{
// Items 0..2 are Tree Node
bool node_open = ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Node %d", i);
if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
node_clicked = i;
if (test_drag_and_drop && ImGui::BeginDragDropSource())
{
ImGui::SetDragDropPayload("_TREENODE", NULL, 0);
ImGui::Text("This is a drag and drop source");
ImGui::EndDragDropSource();
}
if (i == 2)
{
// Item 2 has an additional inline button to help demonstrate SpanTextWidth.
ImGui::SameLine();
if (ImGui::SmallButton("button")) {}
}
if (node_open)
{
ImGui::BulletText("Blah blah\nBlah Blah");
ImGui::TreePop();
}
}
else
{
// Items 3..5 are Tree Leaves
// The only reason we use TreeNode at all is to allow selection of the leaf. Otherwise we can
// use BulletText() or advance the cursor by GetTreeNodeToLabelSpacing() and call Text().
node_flags |= ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen; // ImGuiTreeNodeFlags_Bullet
ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Leaf %d", i);
if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
node_clicked = i;
if (test_drag_and_drop && ImGui::BeginDragDropSource())
{
ImGui::SetDragDropPayload("_TREENODE", NULL, 0);
ImGui::Text("This is a drag and drop source");
ImGui::EndDragDropSource();
}
}
}
if (node_clicked != -1)
{
// Update selection state