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libcaca/caca/driver_ncurses.c

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  1. /*

  2.  *  libcaca       Colour ASCII-Art library

  3.  *  Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>

  4.  *                2007 Ben Wiley Sittler <bsittler@gmail.com>

  5.  *                All Rights Reserved

  6.  *

  7.  *  $Id$

  8.  *

  9.  *  This library is free software. It comes without any warranty, to

  10.  *  the extent permitted by applicable law. You can redistribute it

  11.  *  and/or modify it under the terms of the Do What The Fuck You Want

  12.  *  To Public License, Version 2, as published by Sam Hocevar. See

  13.  *  http://sam.zoy.org/wtfpl/COPYING for more details.

  14.  */

  15. 

  16. /*

  17.  *  This file contains the libcaca Ncurses input and output driver

  18.  */

  19. 

  20. #include "config.h"

  21. #include "common.h"

  22. 

  23. #if defined USE_NCURSES

  24. 

  25. #if defined HAVE_NCURSESW_NCURSES_H

  26. #   include <ncursesw/ncurses.h>

  27. #elif defined HAVE_NCURSES_NCURSES_H

  28. #   include <ncurses/ncurses.h>

  29. #elif defined HAVE_NCURSES_H

  30. #   include <ncurses.h>

  31. #else

  32. #   include <curses.h>

  33. #endif

  34. 

  35. #include <stdlib.h>

  36. #include <string.h>

  37. 

  38. #if defined HAVE_UNISTD_H

  39. #   include <unistd.h>

  40. #endif

  41. #if defined HAVE_SIGNAL_H

  42. #   include <signal.h>

  43. #endif

  44. #if defined HAVE_SYS_IOCTL_H

  45. #   include <sys/ioctl.h>

  46. #endif

  47. #if defined HAVE_LOCALE_H

  48. #   include <locale.h>

  49. #endif

  50. #if defined HAVE_TERMIOS_H

  51. #   include <termios.h>

  52. #endif

  53. 

  54. #include "caca.h"

  55. #include "caca_internals.h"

  56. #include "cucul.h"

  57. #include "cucul_internals.h"

  58. 

  59. /*

  60.  * Emulation for missing ACS_* in older curses

  61.  */

  62. 

  63. #ifndef ACS_BLOCK

  64. #define ACS_BLOCK '#'

  65. #endif

  66. 

  67. #ifndef ACS_BOARD

  68. #define ACS_BOARD '#'

  69. #endif

  70. 

  71. #ifndef ACS_BTEE

  72. #define ACS_BTEE '+'

  73. #endif

  74. 

  75. #ifndef ACS_BULLET

  76. #define ACS_BULLET '.'

  77. #endif

  78. 

  79. #ifndef ACS_CKBOARD

  80. #define ACS_CKBOARD ':'

  81. #endif

  82. 

  83. #ifndef ACS_DARROW

  84. #define ACS_DARROW 'v'

  85. #endif

  86. 

  87. #ifndef ACS_DEGREE

  88. #define ACS_DEGREE '\''

  89. #endif

  90. 

  91. #ifndef ACS_DIAMOND

  92. #define ACS_DIAMOND '+'

  93. #endif

  94. 

  95. #ifndef ACS_GEQUAL

  96. #define ACS_GEQUAL '>'

  97. #endif

  98. 

  99. #ifndef ACS_HLINE

  100. #define ACS_HLINE '-'

  101. #endif

  102. 

  103. #ifndef ACS_LANTERN

  104. #define ACS_LANTERN '#'

  105. #endif

  106. 

  107. #ifndef ACS_LARROW

  108. #define ACS_LARROW '<'

  109. #endif

  110. 

  111. #ifndef ACS_LEQUAL

  112. #define ACS_LEQUAL '<'

  113. #endif

  114. 

  115. #ifndef ACS_LLCORNER

  116. #define ACS_LLCORNER '+'

  117. #endif

  118. 

  119. #ifndef ACS_LRCORNER

  120. #define ACS_LRCORNER '+'

  121. #endif

  122. 

  123. #ifndef ACS_LTEE

  124. #define ACS_LTEE '+'

  125. #endif

  126. 

  127. #ifndef ACS_NEQUAL

  128. #define ACS_NEQUAL '!'

  129. #endif

  130. 

  131. #ifndef ACS_PI

  132. #define ACS_PI '*'

  133. #endif

  134. 

  135. #ifndef ACS_STERLING

  136. #define ACS_STERLING 'f'

  137. #endif

  138. 

  139. #ifndef ACS_PLMINUS

  140. #define ACS_PLMINUS '#'

  141. #endif

  142. 

  143. #ifndef ACS_PLUS

  144. #define ACS_PLUS '+'

  145. #endif

  146. 

  147. #ifndef ACS_RARROW

  148. #define ACS_RARROW '>'

  149. #endif

  150. 

  151. #ifndef ACS_RTEE

  152. #define ACS_RTEE '+'

  153. #endif

  154. 

  155. #ifndef ACS_S1

  156. #define ACS_S1 '-'

  157. #endif

  158. 

  159. #ifndef ACS_S3

  160. #define ACS_S3 '-'

  161. #endif

  162. 

  163. #ifndef ACS_S7

  164. #define ACS_S7 '-'

  165. #endif

  166. 

  167. #ifndef ACS_S9

  168. #define ACS_S9 '-'

  169. #endif

  170. 

  171. #ifndef ACS_TTEE

  172. #define ACS_TTEE '+'

  173. #endif

  174. 

  175. #ifndef ACS_UARROW

  176. #define ACS_UARROW '^'

  177. #endif

  178. 

  179. #ifndef ACS_ULCORNER

  180. #define ACS_ULCORNER '+'

  181. #endif

  182. 

  183. #ifndef ACS_URCORNER

  184. #define ACS_URCORNER '+'

  185. #endif

  186. 

  187. #ifndef ACS_VLINE

  188. #define ACS_VLINE '|'

  189. #endif

  190. 

  191. /*

  192.  * Local functions

  193.  */

  194. 

  195. #if defined HAVE_SIGNAL

  196. static RETSIGTYPE sigwinch_handler(int);

  197. static caca_display_t *sigwinch_d; /* FIXME: we ought to get rid of this */

  198. #endif

  199. #if defined HAVE_GETENV && defined HAVE_PUTENV

  200. static void ncurses_check_terminal(void);

  201. #endif

  202. static void ncurses_write_utf32(uint32_t);

  203. 

  204. struct driver_private

  205. {

  206.     int attr[16*16];

  207.     mmask_t oldmask;

  208. };

  209. 

  210. static int ncurses_init_graphics(caca_display_t *dp)

  211. {

  212.     static int curses_colors[] =

  213.     {

  214.         /* Standard curses colours */

  215.         COLOR_BLACK,

  216.         COLOR_BLUE,

  217.         COLOR_GREEN,

  218.         COLOR_CYAN,

  219.         COLOR_RED,

  220.         COLOR_MAGENTA,

  221.         COLOR_YELLOW,

  222.         COLOR_WHITE,

  223.         /* Extra values for xterm-16color */

  224.         COLOR_BLACK + 8,

  225.         COLOR_BLUE + 8,

  226.         COLOR_GREEN + 8,

  227.         COLOR_CYAN + 8,

  228.         COLOR_RED + 8,

  229.         COLOR_MAGENTA + 8,

  230.         COLOR_YELLOW + 8,

  231.         COLOR_WHITE + 8

  232.     };

  233. 

  234.     mmask_t newmask;

  235.     int fg, bg, max;

  236. 

  237.     dp->drv.p = malloc(sizeof(struct driver_private));

  238. 

  239. #if defined HAVE_GETENV && defined HAVE_PUTENV

  240.     ncurses_check_terminal();

  241. #endif

  242. 

  243. #if defined HAVE_SIGNAL

  244.     sigwinch_d = dp;

  245.     signal(SIGWINCH, sigwinch_handler);

  246. #endif

  247. 

  248. #if defined HAVE_LOCALE_H

  249.     setlocale(LC_ALL, "");

  250. #endif

  251. 

  252.     _caca_set_term_title("caca for ncurses");

  253. 

  254.     initscr();

  255.     keypad(stdscr, TRUE);

  256.     nonl();

  257.     raw();

  258.     noecho();

  259.     nodelay(stdscr, TRUE);

  260.     curs_set(0);

  261. 

  262.     /* Activate mouse */

  263.     newmask = REPORT_MOUSE_POSITION | ALL_MOUSE_EVENTS;

  264.     mousemask(newmask, &dp->drv.p->oldmask);

  265.     mouseinterval(-1); /* No click emulation */

  266. 

  267.     /* Set the escape delay to a ridiculously low value */

  268.     ESCDELAY = 10;

  269. 

  270.     /* Activate colour */

  271.     start_color();

  272. 

  273.     /* If COLORS == 16, it means the terminal supports full bright colours

  274.      * using setab and setaf (will use \e[90m \e[91m etc. for colours >= 8),

  275.      * we can build 16*16 colour pairs.

  276.      * If COLORS == 8, it means the terminal does not know about bright

  277.      * colours and we need to get them through A_BOLD and A_BLINK (\e[1m

  278.      * and \e[5m). We can only build 8*8 colour pairs. */

  279.     max = COLORS >= 16 ? 16 : 8;

  280. 

  281.     for(bg = 0; bg < max; bg++)

  282.         for(fg = 0; fg < max; fg++)

  283.         {

  284.             /* Use ((max + 7 - fg) % max) instead of fg so that colour 0

  285.              * is light gray on black. Some terminals don't like this

  286.              * colour pair to be redefined. */

  287.             int col = ((max + 7 - fg) % max) + max * bg;

  288.             init_pair(col, curses_colors[fg], curses_colors[bg]);

  289.             dp->drv.p->attr[fg + 16 * bg] = COLOR_PAIR(col);

  290. 

  291.             if(max == 8)

  292.             {

  293.                 /* Bright fg on simple bg */

  294.                 dp->drv.p->attr[fg + 8 + 16 * bg] = A_BOLD | COLOR_PAIR(col);

  295.                 /* Simple fg on bright bg */

  296.                 dp->drv.p->attr[fg + 16 * (bg + 8)] = A_BLINK

  297.                                                     | COLOR_PAIR(col);

  298.                 /* Bright fg on bright bg */

  299.                 dp->drv.p->attr[fg + 8 + 16 * (bg + 8)] = A_BLINK | A_BOLD

  300.                                                         | COLOR_PAIR(col);

  301.             }

  302.         }

  303. 

  304.     __cucul_set_canvas_size(dp->cv, COLS, LINES);

  305. 

  306.     return 0;

  307. }

  308. 

  309. static int ncurses_end_graphics(caca_display_t *dp)

  310. {

  311.     _caca_set_term_title("");

  312.     mousemask(dp->drv.p->oldmask, NULL);

  313.     curs_set(1);

  314.     noraw();

  315.     endwin();

  316. 

  317.     free(dp->drv.p);

  318. 

  319.     return 0;

  320. }

  321. 

  322. static int ncurses_set_display_title(caca_display_t *dp, char const *title)

  323. {

  324.     _caca_set_term_title(title);

  325. 

  326.     return 0;

  327. }

  328. 

  329. static unsigned int ncurses_get_display_width(caca_display_t const *dp)

  330. {

  331.     /* Fallback to a 6x10 font */

  332.     return dp->cv->width * 6;

  333. }

  334. 

  335. static unsigned int ncurses_get_display_height(caca_display_t const *dp)

  336. {

  337.     /* Fallback to a 6x10 font */

  338.     return dp->cv->height * 10;

  339. }

  340. 

  341. static void ncurses_display(caca_display_t *dp)

  342. {

  343.     int x, y;

  344.     uint32_t *attrs = dp->cv->attrs;

  345.     uint32_t *chars = dp->cv->chars;

  346.     for(y = 0; y < (int)dp->cv->height; y++)

  347.     {

  348.         move(y, 0);

  349.         for(x = dp->cv->width; x--; )

  350.         {

  351.             attrset(dp->drv.p->attr[cucul_attr_to_ansi(*attrs++)]);

  352.             ncurses_write_utf32(*chars++);

  353.         }

  354.     }

  355.     

  356.     x = cucul_get_cursor_x(dp->cv);

  357.     y = cucul_get_cursor_y(dp->cv);

  358.     move(y, x);

  359. 

  360.     refresh();

  361. }

  362. 

  363. static void ncurses_handle_resize(caca_display_t *dp)

  364. {

  365.     struct winsize size;

  366. 

  367. #if defined HAVE_SYS_IOCTL_H

  368.     if(ioctl(fileno(stdout), TIOCGWINSZ, &size) == 0)

  369.     {

  370.         dp->resize.w = size.ws_col;

  371.         dp->resize.h = size.ws_row;

  372. #if defined HAVE_RESIZE_TERM

  373.         resize_term(dp->resize.h, dp->resize.w);

  374. #else

  375.         resizeterm(dp->resize.h, dp->resize.w);

  376. #endif

  377.         wrefresh(curscr);

  378.         return;

  379.     }

  380. #endif

  381. 

  382.     /* Fallback */

  383.     dp->resize.w = dp->cv->width;

  384.     dp->resize.h = dp->cv->height;

  385. }

  386. 

  387. static int ncurses_get_event(caca_display_t *dp, caca_privevent_t *ev)

  388. {

  389.     int intkey;

  390. 

  391.     intkey = getch();

  392.     if(intkey == ERR)

  393.     {

  394.         ev->type = CACA_EVENT_NONE;

  395.         return 0;

  396.     }

  397. 

  398.     if(intkey < 0x7f)

  399.     {

  400.         ev->type = CACA_EVENT_KEY_PRESS;

  401.         ev->data.key.ch = intkey;

  402.         ev->data.key.utf32 = intkey;

  403.         ev->data.key.utf8[0] = intkey;

  404.         ev->data.key.utf8[1] = '\0';

  405.         return 1;

  406.     }

  407. 

  408.     /* If the key was UTF-8, parse the whole sequence */

  409.     if(intkey >= 0x80 && intkey < 0x100)

  410.     {

  411.         int keys[7]; /* Necessary for ungetch(); */

  412.         char utf8[7];

  413.         uint32_t utf32;

  414.         unsigned int i, bytes = 0;

  415. 

  416.         keys[0] = intkey;

  417.         utf8[0] = intkey;

  418. 

  419.         for(i = 1; i < 6; i++)

  420.         {

  421.             keys[i] = getch();

  422.             utf8[i] = (unsigned char)keys[i];

  423.         }

  424. 

  425.         utf8[i] = '\0';

  426.         utf32 = cucul_utf8_to_utf32(utf8, &bytes);

  427. 

  428.         while(i > bytes)

  429.             ungetch(keys[--i]);

  430. 

  431.         if(bytes)

  432.         {

  433.             ev->type = CACA_EVENT_KEY_PRESS;

  434.             ev->data.key.ch = 0;

  435.             ev->data.key.utf32 = utf32;

  436.             strcpy(ev->data.key.utf8, utf8);

  437.             return 1;

  438.         }

  439.     }

  440. 

  441.     if(intkey == KEY_MOUSE)

  442.     {

  443.         MEVENT mevent;

  444.         getmouse(&mevent);

  445. 

  446.         switch(mevent.bstate)

  447.         {

  448. #define PRESS(x) ev->data.mouse.button = x; \

  449.                  ev->type = CACA_EVENT_MOUSE_PRESS; _push_event(dp, ev)

  450. #define RELEASE(x) ev->data.mouse.button = x; \

  451.                    ev->type = CACA_EVENT_MOUSE_RELEASE; _push_event(dp, ev)

  452. #define CLICK(x) PRESS(x); RELEASE(x)

  453.             case BUTTON1_PRESSED: PRESS(1); break;

  454.             case BUTTON1_RELEASED: RELEASE(1); break;

  455.             case BUTTON1_CLICKED: CLICK(1); break;

  456.             case BUTTON1_DOUBLE_CLICKED: CLICK(1); CLICK(1); break;

  457.             case BUTTON1_TRIPLE_CLICKED: CLICK(1); CLICK(1); CLICK(1); break;

  458.             case BUTTON1_RESERVED_EVENT: break;

  459. 

  460.             case BUTTON2_PRESSED: PRESS(2); break;

  461.             case BUTTON2_RELEASED: RELEASE(2); break;

  462.             case BUTTON2_CLICKED: CLICK(2); break;

  463.             case BUTTON2_DOUBLE_CLICKED: CLICK(2); CLICK(2); break;

  464.             case BUTTON2_TRIPLE_CLICKED: CLICK(2); CLICK(2); CLICK(2); break;

  465.             case BUTTON2_RESERVED_EVENT: break;

  466. 

  467.             case BUTTON3_PRESSED: PRESS(3); break;

  468.             case BUTTON3_RELEASED: RELEASE(3); break;

  469.             case BUTTON3_CLICKED: CLICK(3); break;

  470.             case BUTTON3_DOUBLE_CLICKED: CLICK(3); CLICK(3); break;

  471.             case BUTTON3_TRIPLE_CLICKED: CLICK(3); CLICK(3); CLICK(3); break;

  472.             case BUTTON3_RESERVED_EVENT: break;

  473. 

  474.             case BUTTON4_PRESSED: PRESS(4); break;

  475.             case BUTTON4_RELEASED: RELEASE(4); break;

  476.             case BUTTON4_CLICKED: CLICK(4); break;

  477.             case BUTTON4_DOUBLE_CLICKED: CLICK(4); CLICK(4); break;

  478.             case BUTTON4_TRIPLE_CLICKED: CLICK(4); CLICK(4); CLICK(4); break;

  479.             case BUTTON4_RESERVED_EVENT: break;

  480. 

  481.             default:

  482.                 break;

  483. #undef PRESS

  484. #undef RELEASE

  485. #undef CLICK

  486.         }

  487. 

  488.         if(dp->mouse.x == (unsigned int)mevent.x &&

  489.            dp->mouse.y == (unsigned int)mevent.y)

  490.             return _pop_event(dp, ev);

  491. 

  492.         dp->mouse.x = mevent.x;

  493.         dp->mouse.y = mevent.y;

  494. 

  495.         ev->type = CACA_EVENT_MOUSE_MOTION;

  496.         ev->data.mouse.x = dp->mouse.x;

  497.         ev->data.mouse.y = dp->mouse.y;

  498.         return 1;

  499.     }

  500. 

  501.     switch(intkey)

  502.     {

  503.         case KEY_UP: ev->data.key.ch = CACA_KEY_UP; break;

  504.         case KEY_DOWN: ev->data.key.ch = CACA_KEY_DOWN; break;

  505.         case KEY_LEFT: ev->data.key.ch = CACA_KEY_LEFT; break;

  506.         case KEY_RIGHT: ev->data.key.ch = CACA_KEY_RIGHT; break;

  507. 

  508.         case KEY_IC: ev->data.key.ch = CACA_KEY_INSERT; break;

  509.         case KEY_DC: ev->data.key.ch = CACA_KEY_DELETE; break;

  510.         case 0x7f:

  511.         case KEY_BACKSPACE: ev->data.key.ch = CACA_KEY_BACKSPACE; break;

  512.         case KEY_HOME: ev->data.key.ch = CACA_KEY_HOME; break;

  513.         case KEY_END: ev->data.key.ch = CACA_KEY_END; break;

  514.         case KEY_PPAGE: ev->data.key.ch = CACA_KEY_PAGEUP; break;

  515.         case KEY_NPAGE: ev->data.key.ch = CACA_KEY_PAGEDOWN; break;

  516. 

  517.         case KEY_F(1): ev->data.key.ch = CACA_KEY_F1; break;

  518.         case KEY_F(2): ev->data.key.ch = CACA_KEY_F2; break;

  519.         case KEY_F(3): ev->data.key.ch = CACA_KEY_F3; break;

  520.         case KEY_F(4): ev->data.key.ch = CACA_KEY_F4; break;

  521.         case KEY_F(5): ev->data.key.ch = CACA_KEY_F5; break;

  522.         case KEY_F(6): ev->data.key.ch = CACA_KEY_F6; break;

  523.         case KEY_F(7): ev->data.key.ch = CACA_KEY_F7; break;

  524.         case KEY_F(8): ev->data.key.ch = CACA_KEY_F8; break;

  525.         case KEY_F(9): ev->data.key.ch = CACA_KEY_F9; break;

  526.         case KEY_F(10): ev->data.key.ch = CACA_KEY_F10; break;

  527.         case KEY_F(11): ev->data.key.ch = CACA_KEY_F11; break;

  528.         case KEY_F(12): ev->data.key.ch = CACA_KEY_F12; break;

  529. 

  530.         default:

  531.             /* Unknown key */

  532.             ev->type = CACA_EVENT_NONE; return 0;

  533.     }

  534. 

  535.     ev->type = CACA_EVENT_KEY_PRESS;

  536.     ev->data.key.utf32 = 0;

  537.     ev->data.key.utf8[0] = '\0';

  538.     return 1;

  539. }

  540. 

  541. static void ncurses_set_cursor(caca_display_t *dp, int flags)

  542. {

  543.     curs_set(flags ? 2 : 0);

  544. }

  545. 

  546. /*

  547.  * XXX: following functions are local

  548.  */

  549. 

  550. #if defined HAVE_SIGNAL

  551. static RETSIGTYPE sigwinch_handler(int sig)

  552. {

  553.     sigwinch_d->resize.resized = 1;

  554. 

  555.     signal(SIGWINCH, sigwinch_handler);

  556. }

  557. #endif

  558. 

  559. #if defined HAVE_GETENV && defined HAVE_PUTENV

  560. static void ncurses_check_terminal(void)

  561. {

  562.     char *term, *colorterm;

  563. 

  564.     term = getenv("TERM");

  565.     colorterm = getenv("COLORTERM");

  566. 

  567.     if(!term || strcmp(term, "xterm"))

  568.         return;

  569. 

  570.     /* If we are using gnome-terminal, it's really a 16 colour terminal.

  571.      * Ditto if we are using xfce4-terminal, or Konsole. */

  572.     if((colorterm && (!strcmp(colorterm, "gnome-terminal")

  573.                        || !strcmp(colorterm, "Terminal")))

  574.          || getenv("KONSOLE_DCOP_SESSION"))

  575.     {

  576.         SCREEN *screen;

  577.         screen = newterm("xterm-16color", stdout, stdin);

  578.         if(screen == NULL)

  579.             return;

  580.         endwin();

  581.         (void)putenv("TERM=xterm-16color");

  582.         return;

  583.     }

  584. }

  585. #endif

  586. 

  587. static void ncurses_write_utf32(uint32_t ch)

  588. {

  589. #if defined HAVE_NCURSESW_NCURSES_H

  590.     char buf[10];

  591.     int bytes;

  592. #endif

  593. 

  594.     if(ch == CUCUL_MAGIC_FULLWIDTH)

  595.         return;

  596. 

  597. #if defined HAVE_NCURSESW_NCURSES_H

  598.     bytes = cucul_utf32_to_utf8(buf, ch);

  599.     buf[bytes] = '\0';

  600.     addstr(buf);

  601. #else

  602.     if(ch < 0x80)

  603.     {

  604.         addch(ch);

  605.     }

  606.     else

  607.     {

  608.         chtype cch;

  609.         chtype cch2;

  610. 

  611.         cch = '?';

  612.         cch2 = ' ';

  613.         if ((ch > 0x0000ff00) && (ch < 0x0000ff5f))

  614.         {

  615.             cch = ch - 0x0000ff00 + ' ';

  616.         }

  617.         switch (ch)

  618.         {

  619.         case 0x000000a0: /* <nbsp> */

  620.         case 0x00003000: /* 　 */

  621.             cch = ' ';

  622.             break;

  623.         case 0x000000a3: /* £ */

  624.             cch = ACS_STERLING;

  625.             break;

  626.         case 0x000000b0: /* ° */

  627.             cch = ACS_DEGREE;

  628.             break;

  629.         case 0x000000b1: /* ± */

  630.             cch = ACS_PLMINUS;

  631.             break;

  632.         case 0x000000b7: /* · */

  633.         case 0x00002219: /* ∙ */

  634.         case 0x000030fb: /* ・ */

  635.             cch = ACS_BULLET;

  636.             break;

  637.         case 0x000003c0: /* π */

  638.             cch = ACS_PI;

  639.             break;

  640.         case 0x00002018: /* ‘ */

  641.         case 0x00002019: /* ’ */

  642.             cch = '\'';

  643.             break;

  644.         case 0x0000201c: /* “ */

  645.         case 0x0000201d: /* ” */

  646.             cch = '"';

  647.             break;

  648.         case 0x00002190: /* ← */

  649.             cch = ACS_LARROW;

  650.             break;

  651.         case 0x00002191: /* ↑ */

  652.             cch = ACS_UARROW;

  653.             break;

  654.         case 0x00002192: /* → */

  655.             cch = ACS_RARROW;

  656.             break;

  657.         case 0x00002193: /* ↓ */

  658.             cch = ACS_DARROW;

  659.             break;

  660.         case 0x00002260: /* ≠ */

  661.             cch = ACS_NEQUAL;

  662.             break;

  663.         case 0x00002261: /* ≡ */

  664.             cch = '=';

  665.             break;

  666.         case 0x00002264: /* ≤ */

  667.             cch = ACS_LEQUAL;

  668.             break;

  669.         case 0x00002265: /* ≥ */

  670.             cch = ACS_GEQUAL;

  671.             break;

  672.         case 0x000023ba: /* ⎺ */

  673.             cch = ACS_S1;

  674.             cch2 = cch;

  675.             break;

  676.         case 0x000023bb: /* ⎻ */

  677.             cch = ACS_S3;

  678.             cch2 = cch;

  679.             break;

  680.         case 0x000023bc: /* ⎼ */

  681.             cch = ACS_S7;

  682.             cch2 = cch;

  683.             break;

  684.         case 0x000023bd: /* ⎽ */

  685.             cch = ACS_S9;

  686.             cch2 = cch;

  687.             break;

  688.         case 0x00002500: /* ─ */

  689.         case 0x00002550: /* ═ */

  690.             cch = ACS_HLINE;

  691.             cch2 = cch;

  692.             break;

  693.         case 0x00002502: /* │ */

  694.         case 0x00002551: /* ║ */

  695.             cch = ACS_VLINE;

  696.             break;

  697.         case 0x0000250c: /* ┌ */

  698.         case 0x00002552: /* ╒ */

  699.         case 0x00002553: /* ╓ */

  700.         case 0x00002554: /* ╔ */

  701.             cch = ACS_ULCORNER;

  702.             cch2 = ACS_HLINE;

  703.             break;

  704.         case 0x00002510: /* ┐ */

  705.         case 0x00002555: /* ╕ */

  706.         case 0x00002556: /* ╖ */

  707.         case 0x00002557: /* ╗ */

  708.             cch = ACS_URCORNER;

  709.             break;

  710.         case 0x00002514: /* └ */

  711.         case 0x00002558: /* ╘ */

  712.         case 0x00002559: /* ╙ */

  713.         case 0x0000255a: /* ╚ */

  714.             cch = ACS_LLCORNER;

  715.             cch2 = ACS_HLINE;

  716.             break;

  717.         case 0x00002518: /* ┘ */

  718.         case 0x0000255b: /* ╛ */

  719.         case 0x0000255c: /* ╜ */

  720.         case 0x0000255d: /* ╝ */

  721.             cch = ACS_LRCORNER;

  722.             break;

  723.         case 0x0000251c: /* ├ */

  724.         case 0x0000255e: /* ╞ */

  725.         case 0x0000255f: /* ╟ */

  726.         case 0x00002560: /* ╠ */

  727.             cch = ACS_LTEE;

  728.             cch2 = ACS_HLINE;

  729.             break;

  730.         case 0x00002524: /* ┤ */

  731.         case 0x00002561: /* ╡ */

  732.         case 0x00002562: /* ╢ */

  733.         case 0x00002563: /* ╣ */

  734.             cch = ACS_RTEE;

  735.             break;

  736.         case 0x0000252c: /* ┬ */

  737.         case 0x00002564: /* ╤ */

  738.         case 0x00002565: /* ╥ */

  739.         case 0x00002566: /* ╦ */

  740.             cch = ACS_TTEE;

  741.             cch2 = ACS_HLINE;

  742.             break;

  743.         case 0x00002534: /* ┴ */

  744.         case 0x00002567: /* ╧ */

  745.         case 0x00002568: /* ╨ */

  746.         case 0x00002569: /* ╩ */

  747.             cch = ACS_BTEE;

  748.             cch2 = ACS_HLINE;

  749.             break;

  750.         case 0x0000253c: /* ┼ */

  751.         case 0x0000256a: /* ╪ */

  752.         case 0x0000256b: /* ╫ */

  753.         case 0x0000256c: /* ╬ */

  754.             cch = ACS_PLUS;

  755.             cch2 = ACS_HLINE;

  756.             break;

  757.         case 0x00002591: /* ░ */

  758.             cch = ACS_BOARD;

  759.             cch2 = cch;

  760.             break;

  761.         case 0x00002592: /* ▒ */

  762.         case 0x00002593: /* ▓ */

  763.             cch = ACS_CKBOARD;

  764.             cch2 = cch;

  765.             break;

  766.         case 0x00002580: /* ▀ */

  767.         case 0x00002584: /* ▄ */

  768.         case 0x00002588: /* █ */

  769.         case 0x0000258c: /* ▌ */

  770.         case 0x00002590: /* ▐ */

  771.         case 0x000025a0: /* ■ */

  772.         case 0x000025ac: /* ▬ */

  773.         case 0x000025ae: /* ▮ */

  774.             cch = ACS_BLOCK;

  775.             cch2 = cch;

  776.             break;

  777.         case 0x000025c6: /* ◆ */

  778.         case 0x00002666: /* ♦ */

  779.             cch = ACS_DIAMOND;

  780.             break;

  781.         case 0x00002022: /* • */

  782.         case 0x000025cb: /* ○ */

  783.         case 0x000025cf: /* ● */

  784.         case 0x00002603: /* ☃ */

  785.         case 0x0000263c: /* ☼ */

  786.             cch = ACS_LANTERN;

  787.             break;

  788.         case 0x0000301c: /* 〜 */

  789.             cch = '~';

  790.             break;

  791.         }

  792.         addch(cch);

  793.         if(cucul_utf32_is_fullwidth(ch))

  794.         {

  795.             addch(cch2);

  796.         }

  797.     }

  798. #endif

  799. }

  800. 

  801. /*

  802.  * Driver initialisation

  803.  */

  804. 

  805. int ncurses_install(caca_display_t *dp)

  806. {

  807.     dp->drv.driver = CACA_DRIVER_NCURSES;

  808. 

  809.     dp->drv.init_graphics = ncurses_init_graphics;

  810.     dp->drv.end_graphics = ncurses_end_graphics;

  811.     dp->drv.set_display_title = ncurses_set_display_title;

  812.     dp->drv.get_display_width = ncurses_get_display_width;

  813.     dp->drv.get_display_height = ncurses_get_display_height;

  814.     dp->drv.display = ncurses_display;

  815.     dp->drv.handle_resize = ncurses_handle_resize;

  816.     dp->drv.get_event = ncurses_get_event;

  817.     dp->drv.set_mouse = NULL;

  818.     dp->drv.set_cursor = ncurses_set_cursor;

  819. 

  820.     return 0;

  821. }

  822. 

  823. #endif /* USE_NCURSES */