release/src/router/libncurses/c++/demo.cc

   1 // * This makes emacs happy -*-Mode: C++;-*-
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  29
  30 /*
  31  *   Silly demo program for the NCursesPanel class.
  32  *
  33  *   written by Anatoly Ivasyuk (anatoly@nick.csh.rit.edu)
  34  *
  35  *   Demo code for NCursesMenu and NCursesForm written by
  36  *   Juergen Pfeifer
  37  *
  38  * $Id: demo.cc,v 1.41 2012/02/23 10:41:56 tom Exp $
  39  */
  40
  41 #include "internal.h"
  42 #include "cursesapp.h"
  43 #include "cursesm.h"
  44 #include "cursesf.h"
  45
  46 #ifdef __MINGW32__
  47 #undef KEY_EVENT
  48 #endif
  49
  50 #ifndef __MINGW32__
  51 extern "C" unsigned int sleep(unsigned int);
  52 #endif
  53
  54 #undef index // needed for NeXT
  55
  56 //
  57 // -------------------------------------------------------------------------
  58 //
  59 class SillyDemo
  60 {
  61   public:
  62   void run(int sleeptime) {
  63
  64     NCursesPanel *mystd = new NCursesPanel();
  65
  66     //  Make a few small demo panels
  67
  68     NCursesPanel *u = new NCursesPanel(8, 20, 12, 4);
  69     NCursesPanel *v = new NCursesPanel(8, 20, 10, 6);
  70     NCursesPanel *w = new NCursesPanel(8, 20, 8, 8);
  71     NCursesPanel *x = new NCursesPanel(8, 20, 6, 10);
  72     NCursesPanel *y = new NCursesPanel(8, 20, 4, 12);
  73     NCursesPanel *z = new NCursesPanel(8, 30, 2, 14);
  74
  75     //  Draw something on the main screen, so we can see what happens
  76     //  when panels get moved or deleted.
  77
  78     mystd->box();
  79     mystd->move(mystd->height()/2, 1);
  80     mystd->hline(mystd->width()-2);
  81     mystd->move(1, mystd->width()/2);
  82     mystd->vline(mystd->height()-2);
  83     mystd->addch(0, mystd->width()/2, ACS_TTEE);
  84     mystd->addch(mystd->height()-1, mystd->width()/2, ACS_BTEE);
  85     mystd->addch(mystd->height()/2, 0, ACS_LTEE);
  86     mystd->addch(mystd->height()/2, mystd->width()-1, ACS_RTEE);
  87     mystd->addch(mystd->height()/2, mystd->width()/2, ACS_PLUS);
  88
  89     //  Draw frames with titles around panels so that we can see where
  90     //  the panels are located.
  91     u->boldframe("Win U");
  92     v->frame("Win V");
  93     w->boldframe("Win W");
  94     x->frame("Win X");
  95     y->boldframe("Win Y");
  96     z->frame("Win Z");
  97     if (NCursesApplication::getApplication()->useColors()) {
  98       u->bkgd(' '|COLOR_PAIR(1));
  99       w->bkgd(' '|COLOR_PAIR(1));
 100       y->bkgd(' '|COLOR_PAIR(1));
 101       v->bkgd(' '|COLOR_PAIR(2));
 102       x->bkgd(' '|COLOR_PAIR(2));
 103       z->bkgd(' '|COLOR_PAIR(2));
 104     }
 105
 106     //  A refresh to any valid panel updates all panels and refreshes
 107     //  the screen.  Using mystd is just convenient - We know it's always
 108     //  valid until the end of the program.
 109
 110     mystd->refresh();
 111     sleep(sleeptime);
 112
 113     //  Show what happens when panels are deleted and moved.
 114
 115     sleep(sleeptime);
 116     delete u;
 117     mystd->refresh();
 118
 119     sleep(sleeptime);
 120     delete z;
 121     mystd->refresh();
 122
 123     sleep(sleeptime);
 124     delete v;
 125     mystd->refresh();
 126
 127     // show how it looks when a panel moves
 128     sleep(sleeptime);
 129     y->mvwin(5, 30);
 130     mystd->refresh();
 131
 132     sleep(sleeptime);
 133     delete y;
 134     mystd->refresh();
 135
 136     // show how it looks when you raise a panel
 137     sleep(sleeptime);
 138     w->top();
 139     mystd->refresh();
 140
 141     sleep(sleeptime);
 142     delete w;
 143     mystd->refresh();
 144
 145     sleep(sleeptime);
 146     delete x;
 147
 148     mystd->clear();
 149     mystd->refresh();
 150
 151     //  Don't forget to clean up the main screen.  Since this is the
 152     //  last thing using NCursesWindow, this has the effect of
 153     //  shutting down ncurses and restoring the terminal state.
 154
 155     sleep(sleeptime);
 156     delete mystd;
 157   }
 158 };
 159
 160 class UserData
 161 {
 162 private:
 163   int u;
 164 public:
 165   UserData(int x) : u(x) {}
 166   int sleeptime() const { return u; }
 167 };
 168 //
 169 // -------------------------------------------------------------------------
 170 //
 171 template<class T> class MyAction : public NCursesUserItem<T>
 172 {
 173 public:
 174   MyAction (const char* p_name,
 175             const T* p_UserData)
 176     : NCursesUserItem<T>(p_name, static_cast<const char*>(0), p_UserData)
 177   {}
 178
 179   virtual ~MyAction() {}
 180
 181   bool action() {
 182     SillyDemo a;
 183     a.run(NCursesUserItem<T>::UserData()->sleeptime());
 184     return FALSE;
 185   }
 186 };
 187
 188 template class MyAction<UserData>;
 189 template class NCURSES_IMPEXP NCursesUserItem<UserData>;
 190
 191 class QuitItem : public NCursesMenuItem
 192 {
 193 public:
 194   QuitItem() : NCursesMenuItem("Quit") {
 195   }
 196
 197   bool action() {
 198     return TRUE;
 199   }
 200 };
 201 //
 202 // -------------------------------------------------------------------------
 203 //
 204 class Label : public NCursesFormField
 205 {
 206 public:
 207   Label(const char* title,
 208         int row, int col)
 209     : NCursesFormField(1, static_cast<int>(::strlen(title)), row, col) {
 210       set_value(title);
 211       options_off(O_EDIT|O_ACTIVE);
 212   }
 213 };
 214 //
 215 // -------------------------------------------------------------------------
 216 //
 217 class MyFieldType : public UserDefinedFieldType
 218 {
 219 private:
 220   int chk;
 221 protected:
 222   bool field_check(NCursesFormField& f) {
 223     (void) f;
 224     return TRUE;
 225   }
 226   bool char_check(int c) {
 227     return (c==chk?TRUE:FALSE);
 228   }
 229 public:
 230   MyFieldType(int x) : chk(x) {
 231   }
 232 };
 233 //
 234 // -------------------------------------------------------------------------
 235 //
 236 class TestForm : public NCursesForm
 237 {
 238 private:
 239   NCursesFormField** F;
 240   MyFieldType* mft;
 241   Integer_Field *ift;
 242   Enumeration_Field *eft;
 243
 244   static const char *weekdays[];
 245
 246 public:
 247   TestForm()
 248     : NCursesForm(13, 51, (lines() - 15)/2, (cols() - 53)/2),
 249       F(0),
 250       mft(0),
 251       ift(0),
 252       eft(0)
 253   {
 254
 255     F     = new NCursesFormField*[10];
 256     mft   = new MyFieldType('X');
 257     ift   = new Integer_Field(0, 1, 10);
 258     eft   = new Enumeration_Field(weekdays);
 259
 260     F[0]  = new Label("Demo Entry Form", 0, 16);
 261     F[1]  = new Label("Weekday Enum", 2, 1);
 262     F[2]  = new Label("Number(1-10)", 2, 21);
 263     F[3]  = new Label("Only 'X'", 2, 35);
 264     F[4]  = new Label("Multiline Field (Dynamic and Scrollable)", 5, 1);
 265     F[5]  = new NCursesFormField(1, 18, 3, 1);
 266     F[6]  = new NCursesFormField(1, 12, 3, 21);
 267     F[7]  = new NCursesFormField(1, 12, 3, 35);
 268     F[8]  = new NCursesFormField(4, 46, 6, 1, 2);
 269     F[9]  = new NCursesFormField();
 270
 271     InitForm(F, TRUE, TRUE);
 272     boldframe();
 273
 274     F[5]->set_fieldtype(*eft);
 275     F[6]->set_fieldtype(*ift);
 276
 277     F[7]->set_fieldtype(*mft);
 278     F[7]->set_maximum_growth(20); // max. 20 characters
 279     F[7]->options_off(O_STATIC);  // make field dynamic
 280
 281     F[8]->set_maximum_growth(10); // max. 10 lines
 282     F[8]->options_off(O_STATIC);  // make field dynamic
 283   }
 284
 285   TestForm& operator=(const TestForm& rhs)
 286   {
 287     if (this != &rhs) {
 288       *this = rhs;
 289     }
 290     return *this;
 291   }
 292
 293   TestForm(const TestForm& rhs)
 294     : NCursesForm(rhs), F(0), mft(0), ift(0), eft(0)
 295   {
 296   }
 297
 298   ~TestForm() {
 299     delete mft;
 300     delete ift;
 301     delete eft;
 302   }
 303 };
 304
 305 const char* TestForm::weekdays[] = {
 306     "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
 307     "Friday", "Saturday", NULL };
 308 //
 309 // -------------------------------------------------------------------------
 310 //
 311 class FormAction : public NCursesMenuItem
 312 {
 313 public:
 314   FormAction(const char *s) : NCursesMenuItem(s) {
 315   }
 316
 317   bool action() {
 318     TestForm F;
 319     Soft_Label_Key_Set* S = new Soft_Label_Key_Set;
 320     for(int i=1; i <= S->labels(); i++) {
 321       char buf[8];
 322       assert(i < 100);
 323       ::_nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf)) "Frm%02d", i);
 324       (*S)[i] = buf;                                      // Text
 325       (*S)[i] = Soft_Label_Key_Set::Soft_Label_Key::Left; // Justification
 326     }
 327     NCursesApplication::getApplication()->push(*S);
 328     F();
 329     NCursesApplication::getApplication()->pop();
 330     delete S;
 331     return FALSE;
 332   }
 333 };
 334 //
 335 // -------------------------------------------------------------------------
 336 //
 337 class PadAction : public NCursesMenuItem
 338 {
 339 public:
 340   PadAction(const char* s) : NCursesMenuItem(s) {
 341   }
 342
 343   bool action() {
 344     const int GRIDSIZE = 3;
 345     const int PADSIZE  = 200;
 346     unsigned gridcount = 0;
 347
 348     NCursesPanel mystd;
 349     NCursesPanel P(mystd.lines()-2, mystd.cols()-2, 1, 1);
 350     NCursesFramedPad FP(P, PADSIZE, PADSIZE);
 351
 352     for (int i=0; i < PADSIZE; i++) {
 353       for (int j=0; j < PADSIZE; j++) {
 354         if (i % GRIDSIZE == 0 && j % GRIDSIZE == 0) {
 355           if (i==0 || j==0)
 356             FP.addch('+');
 357           else
 358             FP.addch(static_cast<chtype>('A' + (gridcount++ % 26)));
 359         }
 360         else if (i % GRIDSIZE == 0)
 361           FP.addch('-');
 362         else if (j % GRIDSIZE == 0)
 363           FP.addch('|');
 364         else
 365           FP.addch(' ');
 366       }
 367     }
 368
 369     P.label("Pad Demo", NULL);
 370     FP();
 371     P.clear();
 372     return FALSE;
 373   }
 374 };
 375
 376 //
 377 // -------------------------------------------------------------------------
 378 //
 379 class PassiveItem : public NCursesMenuItem
 380 {
 381 public:
 382   PassiveItem(const char* text) : NCursesMenuItem(text) {
 383     options_off(O_SELECTABLE);
 384   }
 385 };
 386
 387 //
 388 // -------------------------------------------------------------------------
 389 //
 390 class ScanAction : public NCursesMenuItem
 391 {
 392 public:
 393   ScanAction(const char* s) : NCursesMenuItem(s) {
 394   }
 395
 396   bool action() {
 397     NCursesPanel *mystd = new NCursesPanel();
 398
 399     NCursesPanel *w = new NCursesPanel(mystd->lines() - 2, mystd->cols() - 2, 1, 1);
 400     w->box();
 401     w->refresh();
 402
 403     NCursesPanel *s = new NCursesPanel(w->lines() - 6, w->cols() - 6, 3, 3);
 404     s->scrollok(TRUE);
 405     ::echo();
 406
 407     s->printw("Enter decimal integers.  The running total will be shown\n");
 408     int nvalue = -1;
 409     int result = 0;
 410     while (nvalue != 0) {
 411       nvalue = 0;
 412       s->scanw("%d", &nvalue);
 413       if (nvalue != 0) {
 414         s->printw("%d: ", result += nvalue);
 415       }
 416       s->refresh();
 417     }
 418     s->printw("\nPress any key to continue...");
 419     s->getch();
 420
 421     delete s;
 422     delete w;
 423     delete mystd;
 424     ::noecho();
 425     return FALSE;
 426   }
 427 };
 428
 429 //
 430 // -------------------------------------------------------------------------
 431 //
 432 class MyMenu : public NCursesMenu
 433 {
 434 private:
 435   NCursesPanel* P;
 436   NCursesMenuItem** I;
 437   UserData *u;
 438   #define n_items 7
 439
 440 public:
 441   MyMenu ()
 442     : NCursesMenu (n_items+2, 8, (lines()-10)/2, (cols()-10)/2),
 443       P(0), I(0), u(0)
 444   {
 445     u = new UserData(1);
 446     I = new NCursesMenuItem*[1+n_items];
 447     I[0] = new PassiveItem("One");
 448     I[1] = new PassiveItem("Two");
 449     I[2] = new MyAction<UserData> ("Silly", u);
 450     I[3] = new FormAction("Form");
 451     I[4] = new PadAction("Pad");
 452     I[5] = new ScanAction("Scan");
 453     I[6] = new QuitItem();
 454     I[7] = new NCursesMenuItem(); // Terminating empty item
 455
 456     InitMenu(I, TRUE, TRUE);
 457
 458     P = new NCursesPanel(1, n_items, LINES-1, 1);
 459     boldframe("Demo", "Silly");
 460     P->show();
 461   }
 462
 463   MyMenu& operator=(const MyMenu& rhs)
 464   {
 465     if (this != &rhs) {
 466       *this = rhs;
 467     }
 468     return *this;
 469   }
 470
 471   MyMenu(const MyMenu& rhs)
 472     : NCursesMenu(rhs), P(0), I(0), u(0)
 473   {
 474   }
 475
 476   ~MyMenu()
 477   {
 478     P->hide();
 479     delete P;
 480     delete u;
 481   }
 482
 483   virtual void On_Menu_Init()
 484   {
 485     NCursesWindow W(::stdscr);
 486     P->move(0, 0);
 487     P->clrtoeol();
 488     for(int i=1; i<=count(); i++)
 489       P->addch('0' + i);
 490     P->bkgd(W.getbkgd());
 491     refresh();
 492   }
 493
 494   virtual void On_Menu_Termination()
 495   {
 496     P->move(0, 0);
 497     P->clrtoeol();
 498     refresh();
 499   }
 500
 501   virtual void On_Item_Init(NCursesMenuItem& item)
 502   {
 503     P->move(0, item.index());
 504     P->attron(A_REVERSE);
 505     P->printw("%1d", 1+item.index());
 506     P->attroff(A_REVERSE);
 507     refresh();
 508   }
 509
 510   virtual void On_Item_Termination(NCursesMenuItem& item)
 511   {
 512     P->move(0, item.index());
 513     P->attroff(A_REVERSE);
 514     P->printw("%1d", 1+item.index());
 515     refresh();
 516   }
 517 };
 518 //
 519 // -------------------------------------------------------------------------
 520 //
 521 class TestApplication : public NCursesApplication
 522 {
 523 protected:
 524   int titlesize() const { return 1; }
 525   void title();
 526   Soft_Label_Key_Set::Label_Layout useSLKs() const {
 527     return Soft_Label_Key_Set::PC_Style_With_Index;
 528   }
 529   void init_labels(Soft_Label_Key_Set& S) const;
 530
 531 public:
 532   TestApplication() : NCursesApplication(TRUE) {
 533   }
 534
 535   int run();
 536 };
 537
 538 void TestApplication::init_labels(Soft_Label_Key_Set& S) const
 539 {
 540   for(int i=1; i <= S.labels(); i++) {
 541     char buf[8];
 542     assert(i < 100);
 543     ::_nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf)) "Key%02d", i);
 544     S[i] = buf;                                      // Text
 545     S[i] = Soft_Label_Key_Set::Soft_Label_Key::Left; // Justification
 546   }
 547 }
 548
 549 void TestApplication::title()
 550 {
 551   const char * const titleText = "Simple C++ Binding Demo";
 552   const int len = ::strlen(titleText);
 553
 554   titleWindow->bkgd(screen_titles());
 555   titleWindow->addstr(0, (titleWindow->cols() - len)/2, titleText);
 556   titleWindow->noutrefresh();
 557 }
 558
 559
 560 int TestApplication::run()
 561 {
 562   MyMenu M;
 563   M();
 564   return 0;
 565 }
 566
 567 //
 568 // -------------------------------------------------------------------------
 569 //
 570 static TestApplication *Demo = new TestApplication();