summaryrefslogtreecommitdiff
path: root/Source/CursesDialog/cmCursesMainForm.cxx
blob: dbd024da61b9260446210070dd53f0b34cb644e0 (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#include "cmCursesMainForm.h"

#include "cmAlgorithms.h"
#include "cmCursesCacheEntryComposite.h"
#include "cmCursesDummyWidget.h"
#include "cmCursesForm.h"
#include "cmCursesLabelWidget.h"
#include "cmCursesLongMessageForm.h"
#include "cmCursesStandardIncludes.h"
#include "cmCursesStringWidget.h"
#include "cmCursesWidget.h"
#include "cmState.h"
#include "cmStateTypes.h"
#include "cmSystemTools.h"
#include "cmVersion.h"
#include "cmake.h"

#include <algorithm>
#include <stdio.h>
#include <string.h>

inline int ctrl(int z)
{
  return (z & 037);
}

cmCursesMainForm::cmCursesMainForm(std::vector<std::string> const& args,
                                   int initWidth)
  : Args(args)
  , InitialWidth(initWidth)
{
  this->NumberOfPages = 0;
  this->Fields = nullptr;
  this->Entries = nullptr;
  this->AdvancedMode = false;
  this->NumberOfVisibleEntries = 0;
  this->OkToGenerate = false;
  this->HelpMessage.push_back(
    "Welcome to ccmake, curses based user interface for CMake.");
  this->HelpMessage.push_back("");
  this->HelpMessage.push_back(s_ConstHelpMessage);
  this->CMakeInstance = new cmake(cmake::RoleProject);
  this->CMakeInstance->SetCMakeEditCommand(
    cmSystemTools::GetCMakeCursesCommand());

  // create the arguments for the cmake object
  std::string whereCMake = cmSystemTools::GetProgramPath(this->Args[0]);
  whereCMake += "/cmake";
  this->Args[0] = whereCMake;
  this->CMakeInstance->SetArgs(this->Args);
  this->SearchString = "";
  this->OldSearchString = "";
  this->SearchMode = false;
}

cmCursesMainForm::~cmCursesMainForm()
{
  if (this->Form) {
    unpost_form(this->Form);
    free_form(this->Form);
    this->Form = nullptr;
  }
  delete[] this->Fields;

  // Clean-up composites
  if (this->Entries) {
    cmDeleteAll(*this->Entries);
  }
  delete this->Entries;
  if (this->CMakeInstance) {
    delete this->CMakeInstance;
    this->CMakeInstance = nullptr;
  }
}

// See if a cache entry is in the list of entries in the ui.
bool cmCursesMainForm::LookForCacheEntry(const std::string& key)
{
  if (!this->Entries) {
    return false;
  }

  std::vector<cmCursesCacheEntryComposite*>::iterator it;
  for (it = this->Entries->begin(); it != this->Entries->end(); ++it) {
    if (key == (*it)->Key) {
      return true;
    }
  }

  return false;
}

// Create new cmCursesCacheEntryComposite entries from the cache
void cmCursesMainForm::InitializeUI()
{
  // Create a vector of cmCursesCacheEntryComposite's
  // which contain labels, entries and new entry markers
  std::vector<cmCursesCacheEntryComposite*>* newEntries =
    new std::vector<cmCursesCacheEntryComposite*>;
  std::vector<std::string> cacheKeys =
    this->CMakeInstance->GetState()->GetCacheEntryKeys();
  newEntries->reserve(cacheKeys.size());

  // Count non-internal and non-static entries
  int count = 0;

  for (std::vector<std::string>::const_iterator it = cacheKeys.begin();
       it != cacheKeys.end(); ++it) {
    cmStateEnums::CacheEntryType t =
      this->CMakeInstance->GetState()->GetCacheEntryType(*it);
    if (t != cmStateEnums::INTERNAL && t != cmStateEnums::STATIC &&
        t != cmStateEnums::UNINITIALIZED) {
      ++count;
    }
  }

  int entrywidth = this->InitialWidth - 35;

  cmCursesCacheEntryComposite* comp;
  if (count == 0) {
    // If cache is empty, display a label saying so and a
    // dummy entry widget (does not respond to input)
    comp = new cmCursesCacheEntryComposite("EMPTY CACHE", 30, 30);
    comp->Entry = new cmCursesDummyWidget(1, 1, 1, 1);
    newEntries->push_back(comp);
  } else {
    // Create the composites.

    // First add entries which are new
    for (std::vector<std::string>::const_iterator it = cacheKeys.begin();
         it != cacheKeys.end(); ++it) {
      std::string key = *it;
      cmStateEnums::CacheEntryType t =
        this->CMakeInstance->GetState()->GetCacheEntryType(*it);
      if (t == cmStateEnums::INTERNAL || t == cmStateEnums::STATIC ||
          t == cmStateEnums::UNINITIALIZED) {
        continue;
      }

      if (!this->LookForCacheEntry(key)) {
        newEntries->push_back(new cmCursesCacheEntryComposite(
          key, this->CMakeInstance, true, 30, entrywidth));
        this->OkToGenerate = false;
      }
    }

    // then add entries which are old
    for (std::vector<std::string>::const_iterator it = cacheKeys.begin();
         it != cacheKeys.end(); ++it) {
      std::string key = *it;
      cmStateEnums::CacheEntryType t =
        this->CMakeInstance->GetState()->GetCacheEntryType(*it);
      if (t == cmStateEnums::INTERNAL || t == cmStateEnums::STATIC ||
          t == cmStateEnums::UNINITIALIZED) {
        continue;
      }

      if (this->LookForCacheEntry(key)) {
        newEntries->push_back(new cmCursesCacheEntryComposite(
          key, this->CMakeInstance, false, 30, entrywidth));
      }
    }
  }

  // Clean old entries
  if (this->Entries) {
    cmDeleteAll(*this->Entries);
  }
  delete this->Entries;
  this->Entries = newEntries;

  // Compute fields from composites
  this->RePost();
}

void cmCursesMainForm::RePost()
{
  // Create the fields to be passed to the form.
  if (this->Form) {
    unpost_form(this->Form);
    free_form(this->Form);
    this->Form = nullptr;
  }
  delete[] this->Fields;
  if (this->AdvancedMode) {
    this->NumberOfVisibleEntries = this->Entries->size();
  } else {
    // If normal mode, count only non-advanced entries
    this->NumberOfVisibleEntries = 0;
    std::vector<cmCursesCacheEntryComposite*>::iterator it;
    for (it = this->Entries->begin(); it != this->Entries->end(); ++it) {
      const char* existingValue =
        this->CMakeInstance->GetState()->GetCacheEntryValue((*it)->GetValue());
      bool advanced =
        this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
          (*it)->GetValue(), "ADVANCED");
      if (!existingValue || (!this->AdvancedMode && advanced)) {
        continue;
      }
      this->NumberOfVisibleEntries++;
    }
  }
  // there is always one even if it is the dummy one
  if (this->NumberOfVisibleEntries == 0) {
    this->NumberOfVisibleEntries = 1;
  }
  // Assign the fields: 3 for each entry: label, new entry marker
  // ('*' or ' ') and entry widget
  this->Fields = new FIELD*[3 * this->NumberOfVisibleEntries + 1];
  size_t cc;
  for (cc = 0; cc < 3 * this->NumberOfVisibleEntries + 1; cc++) {
    this->Fields[cc] = nullptr;
  }

  // Assign fields
  int j = 0;
  std::vector<cmCursesCacheEntryComposite*>::iterator it;
  for (it = this->Entries->begin(); it != this->Entries->end(); ++it) {
    const char* existingValue =
      this->CMakeInstance->GetState()->GetCacheEntryValue((*it)->GetValue());
    bool advanced =
      this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
        (*it)->GetValue(), "ADVANCED");
    if (!existingValue || (!this->AdvancedMode && advanced)) {
      continue;
    }
    this->Fields[3 * j] = (*it)->Label->Field;
    this->Fields[3 * j + 1] = (*it)->IsNewLabel->Field;
    this->Fields[3 * j + 2] = (*it)->Entry->Field;
    j++;
  }
  // if no cache entries there should still be one dummy field
  if (j == 0) {
    it = this->Entries->begin();
    this->Fields[0] = (*it)->Label->Field;
    this->Fields[1] = (*it)->IsNewLabel->Field;
    this->Fields[2] = (*it)->Entry->Field;
    this->NumberOfVisibleEntries = 1;
  }
  // Has to be null terminated.
  this->Fields[3 * this->NumberOfVisibleEntries] = nullptr;
}

void cmCursesMainForm::Render(int left, int top, int width, int height)
{

  if (this->Form) {
    FIELD* currentField = current_field(this->Form);
    cmCursesWidget* cw =
      reinterpret_cast<cmCursesWidget*>(field_userptr(currentField));
    // If in edit mode, get out of it
    if (cw->GetType() == cmStateEnums::STRING ||
        cw->GetType() == cmStateEnums::PATH ||
        cw->GetType() == cmStateEnums::FILEPATH) {
      cmCursesStringWidget* sw = static_cast<cmCursesStringWidget*>(cw);
      sw->SetInEdit(false);
    }
    // Delete the previous form
    unpost_form(this->Form);
    free_form(this->Form);
    this->Form = nullptr;
  }

  // Wrong window size
  if (width < cmCursesMainForm::MIN_WIDTH || width < this->InitialWidth ||
      height < cmCursesMainForm::MIN_HEIGHT) {
    return;
  }

  // Leave room for toolbar
  height -= 7;

  if (this->AdvancedMode) {
    this->NumberOfVisibleEntries = this->Entries->size();
  } else {
    // If normal, display only non-advanced entries
    this->NumberOfVisibleEntries = 0;
    std::vector<cmCursesCacheEntryComposite*>::iterator it;
    for (it = this->Entries->begin(); it != this->Entries->end(); ++it) {
      const char* existingValue =
        this->CMakeInstance->GetState()->GetCacheEntryValue((*it)->GetValue());
      bool advanced =
        this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
          (*it)->GetValue(), "ADVANCED");
      if (!existingValue || (!this->AdvancedMode && advanced)) {
        continue;
      }
      this->NumberOfVisibleEntries++;
    }
  }

  // Re-adjust the fields according to their place
  this->NumberOfPages = 1;
  if (height > 0) {
    bool isNewPage;
    int i = 0;
    std::vector<cmCursesCacheEntryComposite*>::iterator it;
    for (it = this->Entries->begin(); it != this->Entries->end(); ++it) {
      const char* existingValue =
        this->CMakeInstance->GetState()->GetCacheEntryValue((*it)->GetValue());
      bool advanced =
        this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
          (*it)->GetValue(), "ADVANCED");
      if (!existingValue || (!this->AdvancedMode && advanced)) {
        continue;
      }
      int row = (i % height) + 1;
      int page = (i / height) + 1;
      isNewPage = (page > 1) && (row == 1);

      if (isNewPage) {
        this->NumberOfPages++;
      }
      (*it)->Label->Move(left, top + row - 1, isNewPage);
      (*it)->IsNewLabel->Move(left + 32, top + row - 1, false);
      (*it)->Entry->Move(left + 33, top + row - 1, false);
      (*it)->Entry->SetPage(this->NumberOfPages);
      i++;
    }
  }

  // Post the form
  this->Form = new_form(this->Fields);
  post_form(this->Form);
  // Update toolbar
  this->UpdateStatusBar();
  this->PrintKeys();

  touchwin(stdscr);
  refresh();
}

void cmCursesMainForm::PrintKeys(int process /* = 0 */)
{
  int x, y;
  getmaxyx(stdscr, y, x);
  if (x < cmCursesMainForm::MIN_WIDTH || x < this->InitialWidth ||
      y < cmCursesMainForm::MIN_HEIGHT) {
    return;
  }

  // Give the current widget (if it exists), a chance to print keys
  cmCursesWidget* cw = nullptr;
  if (this->Form) {
    FIELD* currentField = current_field(this->Form);
    cw = reinterpret_cast<cmCursesWidget*>(field_userptr(currentField));
  }

  char fmt_s[] = "%s";
  if (cw == nullptr || !cw->PrintKeys()) {
    char firstLine[512] = "";
    char secondLine[512] = "";
    char thirdLine[512] = "";
    if (process) {
      memset(firstLine, ' ', 68);
      memset(secondLine, ' ', 68);
      memset(thirdLine, ' ', 68);
    } else {
      if (this->OkToGenerate) {
        sprintf(firstLine,
                "Press [c] to configure       Press [g] to generate and exit");
      } else {
        sprintf(firstLine,
                "Press [c] to configure                                     ");
      }
      {
        const char* toggleKeyInstruction =
          "Press [t] to toggle advanced mode (Currently %s)";
        sprintf(thirdLine, toggleKeyInstruction,
                this->AdvancedMode ? "On" : "Off");
      }
      sprintf(secondLine, "Press [h] for help           "
                          "Press [q] to quit without generating");
    }

    curses_move(y - 4, 0);
    char fmt[512] =
      "Press [enter] to edit option Press [d] to delete an entry";
    if (process) {
      memset(fmt, ' ', 27);
    }
    printw(fmt_s, fmt);
    curses_move(y - 3, 0);
    printw(fmt_s, firstLine);
    curses_move(y - 2, 0);
    printw(fmt_s, secondLine);
    curses_move(y - 1, 0);
    printw(fmt_s, thirdLine);
  }

  if (cw) {
    char pageLine[512] = "";
    sprintf(pageLine, "Page %d of %d", cw->GetPage(), this->NumberOfPages);
    curses_move(0, 65 - static_cast<unsigned int>(strlen(pageLine)) - 1);
    printw(fmt_s, pageLine);
  }

  pos_form_cursor(this->Form);
}

// Print the key of the current entry and the CMake version
// on the status bar. Designed for a width of 80 chars.
void cmCursesMainForm::UpdateStatusBar(const char* message)
{
  int x, y;
  getmaxyx(stdscr, y, x);
  // If window size is too small, display error and return
  if (x < cmCursesMainForm::MIN_WIDTH || x < this->InitialWidth ||
      y < cmCursesMainForm::MIN_HEIGHT) {
    curses_clear();
    curses_move(0, 0);
    char fmt[] = "Window is too small. A size of at least %dx%d is required.";
    printw(fmt, (cmCursesMainForm::MIN_WIDTH < this->InitialWidth
                   ? this->InitialWidth
                   : cmCursesMainForm::MIN_WIDTH),
           cmCursesMainForm::MIN_HEIGHT);
    touchwin(stdscr);
    wrefresh(stdscr);
    return;
  }

  // Get the key of the current entry
  FIELD* cur = current_field(this->Form);
  int findex = field_index(cur);
  cmCursesWidget* lbl = nullptr;
  if (findex >= 0) {
    lbl = reinterpret_cast<cmCursesWidget*>(
      field_userptr(this->Fields[findex - 2]));
  }
  char help[128] = "";
  const char* curField = "";
  if (lbl) {
    curField = lbl->GetValue();

    // Get the help string of the current entry
    // and add it to the help string
    const char* existingValue =
      this->CMakeInstance->GetState()->GetCacheEntryValue(curField);
    if (existingValue) {
      const char* hs = this->CMakeInstance->GetState()->GetCacheEntryProperty(
        curField, "HELPSTRING");
      if (hs) {
        strncpy(help, hs, 127);
        help[127] = '\0';
      } else {
        help[0] = 0;
      }
    } else {
      sprintf(help, " ");
    }
  }

  // Join the key, help string and pad with spaces
  // (or truncate) as necessary
  char bar[cmCursesMainForm::MAX_WIDTH];
  size_t curFieldLen = strlen(curField);
  size_t helpLen = strlen(help);

  size_t width = std::min<size_t>(x, cmCursesMainForm::MAX_WIDTH);

  if (message) {
    curField = message;
    curFieldLen = strlen(message);
    strncpy(bar, curField, width);
    if (curFieldLen < width) {
      memset(bar + curFieldLen, ' ', width - curFieldLen);
    }
  } else {
    strncpy(bar, curField, width);
    if (curFieldLen < width) {
      bar[curFieldLen] = ':';
      bar[curFieldLen + 1] = ' ';
      strncpy(bar + curFieldLen + 2, help, width - curFieldLen - 2);
      if (curFieldLen + helpLen + 2 < width) {
        memset(bar + curFieldLen + helpLen + 2, ' ',
               width - curFieldLen + helpLen + 2);
      }
    }
  }

  bar[width] = '\0';

  // Display CMake version info on the next line
  // We want to display this on the right
  char version[cmCursesMainForm::MAX_WIDTH];
  char vertmp[128];
  sprintf(vertmp, "CMake Version %s", cmVersion::GetCMakeVersion());
  size_t sideSpace = (width - strlen(vertmp));
  memset(version, ' ', sideSpace);
  sprintf(version + sideSpace, "%s", vertmp);
  version[width] = '\0';

  // Now print both lines
  char fmt_s[] = "%s";
  curses_move(y - 5, 0);
  attron(A_STANDOUT);
  printw(fmt_s, bar);
  attroff(A_STANDOUT);
  curses_move(y - 4, 0);
  printw(fmt_s, version);
  pos_form_cursor(this->Form);
}

void cmCursesMainForm::UpdateProgress(const char* msg, float prog, void* vp)
{
  cmCursesMainForm* cm = static_cast<cmCursesMainForm*>(vp);
  if (!cm) {
    return;
  }
  char tmp[1024];
  const char* cmsg = tmp;
  if (prog >= 0) {
    sprintf(tmp, "%s %i%%", msg, static_cast<int>(100 * prog));
  } else {
    cmsg = msg;
  }
  cm->UpdateStatusBar(cmsg);
  cm->PrintKeys(1);
  curses_move(1, 1);
  touchwin(stdscr);
  refresh();
}

int cmCursesMainForm::Configure(int noconfigure)
{
  int xi, yi;
  getmaxyx(stdscr, yi, xi);

  curses_move(1, 1);
  this->UpdateStatusBar("Configuring, please wait...");
  this->PrintKeys(1);
  touchwin(stdscr);
  refresh();
  this->CMakeInstance->SetProgressCallback(cmCursesMainForm::UpdateProgress,
                                           this);

  // always save the current gui values to disk
  this->FillCacheManagerFromUI();
  this->CMakeInstance->SaveCache(
    this->CMakeInstance->GetHomeOutputDirectory());
  this->LoadCache(nullptr);

  // Get rid of previous errors
  this->Errors = std::vector<std::string>();

  // run the generate process
  this->OkToGenerate = true;
  int retVal;
  if (noconfigure) {
    retVal = this->CMakeInstance->DoPreConfigureChecks();
    this->OkToGenerate = false;
    if (retVal > 0) {
      retVal = 0;
    }
  } else {
    retVal = this->CMakeInstance->Configure();
  }
  this->CMakeInstance->SetProgressCallback(nullptr, nullptr);

  keypad(stdscr, true); /* Use key symbols as KEY_DOWN */

  if (retVal != 0 || !this->Errors.empty()) {
    // see if there was an error
    if (cmSystemTools::GetErrorOccuredFlag()) {
      this->OkToGenerate = false;
    }
    int xx, yy;
    getmaxyx(stdscr, yy, xx);
    cmCursesLongMessageForm* msgs = new cmCursesLongMessageForm(
      this->Errors, cmSystemTools::GetErrorOccuredFlag()
        ? "Errors occurred during the last pass."
        : "CMake produced the following output.");
    // reset error condition
    cmSystemTools::ResetErrorOccuredFlag();
    CurrentForm = msgs;
    msgs->Render(1, 1, xx, yy);
    msgs->HandleInput();
    // If they typed the wrong source directory, we report
    // an error and exit
    if (retVal == -2) {
      return retVal;
    }
    CurrentForm = this;
    this->Render(1, 1, xx, yy);
  }

  this->InitializeUI();
  this->Render(1, 1, xi, yi);

  return 0;
}

int cmCursesMainForm::Generate()
{
  int xi, yi;
  getmaxyx(stdscr, yi, xi);

  curses_move(1, 1);
  this->UpdateStatusBar("Generating, please wait...");
  this->PrintKeys(1);
  touchwin(stdscr);
  refresh();
  this->CMakeInstance->SetProgressCallback(cmCursesMainForm::UpdateProgress,
                                           this);

  // Get rid of previous errors
  this->Errors = std::vector<std::string>();

  // run the generate process
  int retVal = this->CMakeInstance->Generate();

  this->CMakeInstance->SetProgressCallback(nullptr, nullptr);
  keypad(stdscr, true); /* Use key symbols as KEY_DOWN */

  if (retVal != 0 || !this->Errors.empty()) {
    // see if there was an error
    if (cmSystemTools::GetErrorOccuredFlag()) {
      this->OkToGenerate = false;
    }
    // reset error condition
    cmSystemTools::ResetErrorOccuredFlag();
    int xx, yy;
    getmaxyx(stdscr, yy, xx);
    const char* title = "Messages during last pass.";
    if (cmSystemTools::GetErrorOccuredFlag()) {
      title = "Errors occurred during the last pass.";
    }
    cmCursesLongMessageForm* msgs =
      new cmCursesLongMessageForm(this->Errors, title);
    CurrentForm = msgs;
    msgs->Render(1, 1, xx, yy);
    msgs->HandleInput();
    // If they typed the wrong source directory, we report
    // an error and exit
    if (retVal == -2) {
      return retVal;
    }
    CurrentForm = this;
    this->Render(1, 1, xx, yy);
  }

  this->InitializeUI();
  this->Render(1, 1, xi, yi);

  return 0;
}

void cmCursesMainForm::AddError(const char* message, const char* /*unused*/)
{
  this->Errors.push_back(message);
}

void cmCursesMainForm::RemoveEntry(const char* value)
{
  if (!value) {
    return;
  }

  std::vector<cmCursesCacheEntryComposite*>::iterator it;
  for (it = this->Entries->begin(); it != this->Entries->end(); ++it) {
    const char* val = (*it)->GetValue();
    if (val && !strcmp(value, val)) {
      this->CMakeInstance->UnwatchUnusedCli(value);
      this->Entries->erase(it);
      break;
    }
  }
}

// copy from the list box to the cache manager
void cmCursesMainForm::FillCacheManagerFromUI()
{
  size_t size = this->Entries->size();
  for (size_t i = 0; i < size; i++) {
    std::string cacheKey = (*this->Entries)[i]->Key;
    const char* existingValue =
      this->CMakeInstance->GetState()->GetCacheEntryValue(cacheKey);
    if (existingValue) {
      std::string oldValue = existingValue;
      std::string newValue = (*this->Entries)[i]->Entry->GetValue();
      std::string fixedOldValue;
      std::string fixedNewValue;
      cmStateEnums::CacheEntryType t =
        this->CMakeInstance->GetState()->GetCacheEntryType(cacheKey);
      this->FixValue(t, oldValue, fixedOldValue);
      this->FixValue(t, newValue, fixedNewValue);

      if (!(fixedOldValue == fixedNewValue)) {
        // The user has changed the value.  Mark it as modified.
        this->CMakeInstance->GetState()->SetCacheEntryBoolProperty(
          cacheKey, "MODIFIED", true);
        this->CMakeInstance->GetState()->SetCacheEntryValue(cacheKey,
                                                            fixedNewValue);
      }
    }
  }
}

void cmCursesMainForm::FixValue(cmStateEnums::CacheEntryType type,
                                const std::string& in, std::string& out) const
{
  out = in.substr(0, in.find_last_not_of(' ') + 1);
  if (type == cmStateEnums::PATH || type == cmStateEnums::FILEPATH) {
    cmSystemTools::ConvertToUnixSlashes(out);
  }
  if (type == cmStateEnums::BOOL) {
    if (cmSystemTools::IsOff(out.c_str())) {
      out = "OFF";
    } else {
      out = "ON";
    }
  }
}

void cmCursesMainForm::HandleInput()
{
  int x = 0, y = 0;

  if (!this->Form) {
    return;
  }

  FIELD* currentField;
  cmCursesWidget* currentWidget;

  char debugMessage[128];

  for (;;) {
    this->UpdateStatusBar();
    this->PrintKeys();
    if (this->SearchMode) {
      std::string searchstr = "Search: " + this->SearchString;
      this->UpdateStatusBar(searchstr.c_str());
      this->PrintKeys(1);
      curses_move(y - 5, static_cast<unsigned int>(searchstr.size()));
      // curses_move(1,1);
      touchwin(stdscr);
      refresh();
    }
    int key = getch();

    getmaxyx(stdscr, y, x);
    // If window too small, handle 'q' only
    if (x < cmCursesMainForm::MIN_WIDTH || y < cmCursesMainForm::MIN_HEIGHT) {
      // quit
      if (key == 'q') {
        break;
      }
      continue;
    }

    currentField = current_field(this->Form);
    currentWidget =
      reinterpret_cast<cmCursesWidget*>(field_userptr(currentField));

    bool widgetHandled = false;

    if (this->SearchMode) {
      if (key == 10 || key == KEY_ENTER) {
        this->SearchMode = false;
        if (!this->SearchString.empty()) {
          this->JumpToCacheEntry(this->SearchString.c_str());
          this->OldSearchString = this->SearchString;
        }
        this->SearchString = "";
      }
      /*
      else if ( key == KEY_ESCAPE )
        {
        this->SearchMode = false;
        }
      */
      else if ((key >= 'a' && key <= 'z') || (key >= 'A' && key <= 'Z') ||
               (key >= '0' && key <= '9') || (key == '_')) {
        if (this->SearchString.size() <
            static_cast<std::string::size_type>(x - 10)) {
          this->SearchString += static_cast<char>(key);
        }
      } else if (key == ctrl('h') || key == KEY_BACKSPACE || key == KEY_DC) {
        if (!this->SearchString.empty()) {
          this->SearchString.resize(this->SearchString.size() - 1);
        }
      }
    } else if (currentWidget && !this->SearchMode) {
      // Ask the current widget if it wants to handle input
      widgetHandled = currentWidget->HandleInput(key, this, stdscr);
      if (widgetHandled) {
        this->OkToGenerate = false;
        this->UpdateStatusBar();
        this->PrintKeys();
      }
    }
    if ((!currentWidget || !widgetHandled) && !this->SearchMode) {
      // If the current widget does not want to handle input,
      // we handle it.
      sprintf(debugMessage, "Main form handling input, key: %d", key);
      cmCursesForm::LogMessage(debugMessage);
      // quit
      if (key == 'q') {
        break;
      }
      // if not end of page, next field otherwise next page
      // each entry consists of fields: label, isnew, value
      // therefore, the label field for the prev. entry is index-5
      // and the label field for the next entry is index+1
      // (index always corresponds to the value field)
      // scroll down with arrow down, ctrl+n (emacs binding), or j (vim
      // binding)
      if (key == KEY_DOWN || key == ctrl('n') || key == 'j') {
        FIELD* cur = current_field(this->Form);
        size_t findex = field_index(cur);
        if (findex == 3 * this->NumberOfVisibleEntries - 1) {
          continue;
        }
        if (new_page(this->Fields[findex + 1])) {
          form_driver(this->Form, REQ_NEXT_PAGE);
        } else {
          form_driver(this->Form, REQ_NEXT_FIELD);
        }
      }
      // if not beginning of page, previous field, otherwise previous page
      // each entry consists of fields: label, isnew, value
      // therefore, the label field for the prev. entry is index-5
      // and the label field for the next entry is index+1
      // (index always corresponds to the value field)
      // scroll down with arrow up, ctrl+p (emacs binding), or k (vim binding)
      else if (key == KEY_UP || key == ctrl('p') || key == 'k') {
        FIELD* cur = current_field(this->Form);
        int findex = field_index(cur);
        if (findex == 2) {
          continue;
        }
        if (new_page(this->Fields[findex - 2])) {
          form_driver(this->Form, REQ_PREV_PAGE);
          set_current_field(this->Form, this->Fields[findex - 3]);
        } else {
          form_driver(this->Form, REQ_PREV_FIELD);
        }
      }
      // pg down
      else if (key == KEY_NPAGE || key == ctrl('d')) {
        form_driver(this->Form, REQ_NEXT_PAGE);
      }
      // pg up
      else if (key == KEY_PPAGE || key == ctrl('u')) {
        form_driver(this->Form, REQ_PREV_PAGE);
      }
      // configure
      else if (key == 'c') {
        this->Configure();
      }
      // display help
      else if (key == 'h') {
        getmaxyx(stdscr, y, x);

        FIELD* cur = current_field(this->Form);
        int findex = field_index(cur);
        cmCursesWidget* lbl = reinterpret_cast<cmCursesWidget*>(
          field_userptr(this->Fields[findex - 2]));
        const char* curField = lbl->GetValue();
        const char* helpString = nullptr;

        const char* existingValue =
          this->CMakeInstance->GetState()->GetCacheEntryValue(curField);
        if (existingValue) {
          helpString = this->CMakeInstance->GetState()->GetCacheEntryProperty(
            curField, "HELPSTRING");
        }
        if (helpString) {
          char* message = new char
            [strlen(curField) + strlen(helpString) +
             strlen(
               "Current option is: \n Help string for this option is: \n") +
             10];
          sprintf(
            message,
            "Current option is: %s\nHelp string for this option is: %s\n",
            curField, helpString);
          this->HelpMessage[1] = message;
          delete[] message;
        } else {
          this->HelpMessage[1] = "";
        }

        cmCursesLongMessageForm* msgs =
          new cmCursesLongMessageForm(this->HelpMessage, "Help.");
        CurrentForm = msgs;
        msgs->Render(1, 1, x, y);
        msgs->HandleInput();
        CurrentForm = this;
        this->Render(1, 1, x, y);
        set_current_field(this->Form, cur);
      }
      // display last errors
      else if (key == 'l') {
        getmaxyx(stdscr, y, x);
        cmCursesLongMessageForm* msgs = new cmCursesLongMessageForm(
          this->Errors, "Errors occurred during the last pass.");
        CurrentForm = msgs;
        msgs->Render(1, 1, x, y);
        msgs->HandleInput();
        CurrentForm = this;
        this->Render(1, 1, x, y);
      } else if (key == '/') {
        this->SearchMode = true;
        this->UpdateStatusBar("Search");
        this->PrintKeys(1);
        touchwin(stdscr);
        refresh();
      } else if (key == 'n') {
        if (!this->OldSearchString.empty()) {
          this->JumpToCacheEntry(this->OldSearchString.c_str());
        }
      }
      // switch advanced on/off
      else if (key == 't') {
        if (this->AdvancedMode) {
          this->AdvancedMode = false;
        } else {
          this->AdvancedMode = true;
        }
        getmaxyx(stdscr, y, x);
        this->RePost();
        this->Render(1, 1, x, y);
      }
      // generate and exit
      else if (key == 'g') {
        if (this->OkToGenerate) {
          this->Generate();
          break;
        }
      }
      // delete cache entry
      else if (key == 'd' && this->NumberOfVisibleEntries) {
        this->OkToGenerate = false;
        FIELD* cur = current_field(this->Form);
        size_t findex = field_index(cur);

        // make the next or prev. current field after deletion
        // each entry consists of fields: label, isnew, value
        // therefore, the label field for the prev. entry is findex-5
        // and the label field for the next entry is findex+1
        // (findex always corresponds to the value field)
        FIELD* nextCur;
        if (findex == 2) {
          nextCur = nullptr;
        } else if (findex == 3 * this->NumberOfVisibleEntries - 1) {
          nextCur = this->Fields[findex - 5];
        } else {
          nextCur = this->Fields[findex + 1];
        }

        // Get the label widget
        // each entry consists of fields: label, isnew, value
        // therefore, the label field for the is findex-2
        // (findex always corresponds to the value field)
        cmCursesWidget* lbl = reinterpret_cast<cmCursesWidget*>(
          field_userptr(this->Fields[findex - 2]));
        if (lbl) {
          this->CMakeInstance->GetState()->RemoveCacheEntry(lbl->GetValue());

          std::string nextVal;
          if (nextCur) {
            nextVal =
              (reinterpret_cast<cmCursesWidget*>(field_userptr(nextCur))
                 ->GetValue());
          }

          getmaxyx(stdscr, y, x);
          this->RemoveEntry(lbl->GetValue());
          this->RePost();
          this->Render(1, 1, x, y);

          if (nextCur) {
            // make the next or prev. current field after deletion
            nextCur = nullptr;
            std::vector<cmCursesCacheEntryComposite*>::iterator it;
            for (it = this->Entries->begin(); it != this->Entries->end();
                 ++it) {
              if (nextVal == (*it)->Key) {
                nextCur = (*it)->Entry->Field;
              }
            }

            if (nextCur) {
              set_current_field(this->Form, nextCur);
            }
          }
        }
      }
    }

    touchwin(stdscr);
    wrefresh(stdscr);
  }
}

int cmCursesMainForm::LoadCache(const char* /*unused*/)

{
  int r = this->CMakeInstance->LoadCache();
  if (r < 0) {
    return r;
  }
  this->CMakeInstance->SetCacheArgs(this->Args);
  this->CMakeInstance->PreLoadCMakeFiles();
  return r;
}

void cmCursesMainForm::JumpToCacheEntry(const char* astr)
{
  std::string str;
  if (astr) {
    str = cmSystemTools::LowerCase(astr);
  }

  if (str.empty()) {
    return;
  }
  FIELD* cur = current_field(this->Form);
  int start_index = field_index(cur);
  int findex = start_index;
  for (;;) {
    if (!str.empty()) {
      cmCursesWidget* lbl = nullptr;
      if (findex >= 0) {
        lbl = reinterpret_cast<cmCursesWidget*>(
          field_userptr(this->Fields[findex - 2]));
      }
      if (lbl) {
        const char* curField = lbl->GetValue();
        if (curField) {
          std::string cfld = cmSystemTools::LowerCase(curField);
          if (cfld.find(str) != std::string::npos && findex != start_index) {
            break;
          }
        }
      }
    }
    if (size_t(findex) >= 3 * this->NumberOfVisibleEntries - 1) {
      set_current_field(this->Form, this->Fields[2]);
    } else if (new_page(this->Fields[findex + 1])) {
      form_driver(this->Form, REQ_NEXT_PAGE);
    } else {
      form_driver(this->Form, REQ_NEXT_FIELD);
    }
    /*
    char buffer[1024];
    sprintf(buffer, "Line: %d != %d / %d\n", findex, idx,
    this->NumberOfVisibleEntries);
    touchwin(stdscr);
    refresh();
    this->UpdateStatusBar( buffer );
    usleep(100000);
    */
    cur = current_field(this->Form);
    findex = field_index(cur);
    if (findex == start_index) {
      break;
    }
  }
}

const char* cmCursesMainForm::s_ConstHelpMessage =
  "CMake is used to configure and generate build files for software projects. "
  "The basic steps for configuring a project with ccmake are as follows:\n\n"
  "1. Run ccmake in the directory where you want the object and executable "
  "files to be placed (build directory). If the source directory is not the "
  "same as this build directory, you have to specify it as an argument on the "
  "command line.\n\n"
  "2. When ccmake is run, it will read the configuration files and display "
  "the current build options. "
  "If you have run CMake before and have updated the configuration files "
  "since then, any new entries will be displayed on top and will be marked "
  "with a *. "
  "On the other hand, the first time you run ccmake, all build options will "
  "be new and will be marked as such. "
  "At this point, you can modify any options (see keys below) you want to "
  "change. "
  "When you are satisfied with your changes, press 'c' to have CMake process "
  "the configuration files. "
  "Please note that changing some options may cause new ones to appear. These "
  "will be shown on top and will be marked with *. "
  "Repeat this procedure until you are satisfied with all the options and "
  "there are no new entries. "
  "At this point, a new command will appear: G)enerate and Exit. You can now "
  "hit 'g' to have CMake generate all the build files (i.e. makefiles or "
  "project files) and exit. "
  "At any point during the process, you can exit ccmake with 'q'. However, "
  "this will not generate/change any build files.\n\n"
  "ccmake KEYS:\n\n"
  "Navigation: "
  "You can use the arrow keys and page up, down to navigate the options. "
  "Alternatively, you can use the following keys: \n"
  " C-n or j : next option\n"
  " C-p or k : previous options\n"
  " C-d : down one page\n"
  " C-u : up one page\n\n"
  "Editing options: "
  "To change an option  press enter or return. If the current options is a "
  "boolean, this will toggle its value. "
  "Otherwise, ccmake will enter edit mode. Alternatively, you can toggle "
  "a bool variable by pressing space, and enter edit mode with i."
  "In this mode you can edit an option using arrow keys and backspace. "
  "Alternatively, you can use the following keys:\n"
  " C-b : back one character\n"
  " C-f : forward one character\n"
  " C-a : go to the beginning of the field\n"
  " C-e : go to the end of the field\n"
  " C-d : delete previous character\n"
  " C-k : kill the rest of the field\n"
  " Esc : Restore field (discard last changes)\n"
  " Enter : Leave edit mode\n"
  "Commands:\n"
  " q : quit ccmake without generating build files\n"
  " h : help, shows this screen\n"
  " c : process the configuration files with the current options\n"
  " g : generate build files and exit, only available when there are no "
  "new options and no errors have been detected during last configuration.\n"
  " l : shows last errors\n"
  " d : delete an option\n"
  " t : toggles advanced mode. In normal mode, only the most important "
  "options are shown. In advanced mode, all options are shown. We recommend "
  "using normal mode unless you are an expert.\n"
  " / : search for a variable name.\n";