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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. 

  22. #if defined USE_NCURSES

  23. 

  24. #if defined HAVE_NCURSESW_NCURSES_H

  25. #   include <ncursesw/ncurses.h>

  26. #elif defined HAVE_NCURSES_NCURSES_H

  27. #   include <ncurses/ncurses.h>

  28. #elif defined HAVE_NCURSES_H

  29. #   include <ncurses.h>

  30. #else

  31. #   include <curses.h>

  32. #endif

  33. 

  34. #include <stdlib.h>

  35. #include <string.h>

  36. 

  37. #if defined HAVE_UNISTD_H

  38. #   include <unistd.h>

  39. #endif

  40. #if defined HAVE_SIGNAL_H

  41. #   include <signal.h>

  42. #endif

  43. #if defined HAVE_SYS_IOCTL_H

  44. #   include <sys/ioctl.h>

  45. #endif

  46. #if defined HAVE_LOCALE_H

  47. #   include <locale.h>

  48. #endif

  49. #if defined HAVE_TERMIOS_H

  50. #   include <termios.h>

  51. #endif

  52. 

  53. #include "cucul.h"

  54. #include "caca.h"

  55. #include "caca_internals.h"

  56. 

  57. /*

  58.  * Emulation for missing ACS_* in older curses

  59.  */

  60. 

  61. #ifndef ACS_BLOCK

  62. #define ACS_BLOCK '#'

  63. #endif

  64. 

  65. #ifndef ACS_BOARD

  66. #define ACS_BOARD '#'

  67. #endif

  68. 

  69. #ifndef ACS_BTEE

  70. #define ACS_BTEE '+'

  71. #endif

  72. 

  73. #ifndef ACS_BULLET

  74. #define ACS_BULLET '.'

  75. #endif

  76. 

  77. #ifndef ACS_CKBOARD

  78. #define ACS_CKBOARD ':'

  79. #endif

  80. 

  81. #ifndef ACS_DARROW

  82. #define ACS_DARROW 'v'

  83. #endif

  84. 

  85. #ifndef ACS_DEGREE

  86. #define ACS_DEGREE '\''

  87. #endif

  88. 

  89. #ifndef ACS_DIAMOND

  90. #define ACS_DIAMOND '+'

  91. #endif

  92. 

  93. #ifndef ACS_GEQUAL

  94. #define ACS_GEQUAL '>'

  95. #endif

  96. 

  97. #ifndef ACS_HLINE

  98. #define ACS_HLINE '-'

  99. #endif

  100. 

  101. #ifndef ACS_LANTERN

  102. #define ACS_LANTERN '#'

  103. #endif

  104. 

  105. #ifndef ACS_LARROW

  106. #define ACS_LARROW '<'

  107. #endif

  108. 

  109. #ifndef ACS_LEQUAL

  110. #define ACS_LEQUAL '<'

  111. #endif

  112. 

  113. #ifndef ACS_LLCORNER

  114. #define ACS_LLCORNER '+'

  115. #endif

  116. 

  117. #ifndef ACS_LRCORNER

  118. #define ACS_LRCORNER '+'

  119. #endif

  120. 

  121. #ifndef ACS_LTEE

  122. #define ACS_LTEE '+'

  123. #endif

  124. 

  125. #ifndef ACS_NEQUAL

  126. #define ACS_NEQUAL '!'

  127. #endif

  128. 

  129. #ifndef ACS_PI

  130. #define ACS_PI '*'

  131. #endif

  132. 

  133. #ifndef ACS_STERLING

  134. #define ACS_STERLING 'f'

  135. #endif

  136. 

  137. #ifndef ACS_PLMINUS

  138. #define ACS_PLMINUS '#'

  139. #endif

  140. 

  141. #ifndef ACS_PLUS

  142. #define ACS_PLUS '+'

  143. #endif

  144. 

  145. #ifndef ACS_RARROW

  146. #define ACS_RARROW '>'

  147. #endif

  148. 

  149. #ifndef ACS_RTEE

  150. #define ACS_RTEE '+'

  151. #endif

  152. 

  153. #ifndef ACS_S1

  154. #define ACS_S1 '-'

  155. #endif

  156. 

  157. #ifndef ACS_S3

  158. #define ACS_S3 '-'

  159. #endif

  160. 

  161. #ifndef ACS_S7

  162. #define ACS_S7 '-'

  163. #endif

  164. 

  165. #ifndef ACS_S9

  166. #define ACS_S9 '-'

  167. #endif

  168. 

  169. #ifndef ACS_TTEE

  170. #define ACS_TTEE '+'

  171. #endif

  172. 

  173. #ifndef ACS_UARROW

  174. #define ACS_UARROW '^'

  175. #endif

  176. 

  177. #ifndef ACS_ULCORNER

  178. #define ACS_ULCORNER '+'

  179. #endif

  180. 

  181. #ifndef ACS_URCORNER

  182. #define ACS_URCORNER '+'

  183. #endif

  184. 

  185. #ifndef ACS_VLINE

  186. #define ACS_VLINE '|'

  187. #endif

  188. 

  189. /*

  190.  * Local functions

  191.  */

  192. 

  193. #if defined HAVE_SIGNAL

  194. static RETSIGTYPE sigwinch_handler(int);

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

  196. #endif

  197. #if defined HAVE_GETENV && defined HAVE_PUTENV

  198. static void ncurses_install_terminal(caca_display_t *);

  199. static void ncurses_uninstall_terminal(caca_display_t *);

  200. #endif

  201. static void ncurses_write_utf32(uint32_t);

  202. 

  203. struct driver_private

  204. {

  205.     int attr[16*16];

  206.     mmask_t oldmask;

  207.     char *term;

  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_install_terminal(dp);

  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.     dp->resize.allow = 1;

  305.     cucul_set_canvas_size(dp->cv, COLS, LINES);

  306.     dp->resize.allow = 0;

  307. 

  308.     return 0;

  309. }

  310. 

  311. static int ncurses_end_graphics(caca_display_t *dp)

  312. {

  313.     _caca_set_term_title("");

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

  315.     curs_set(1);

  316.     noraw();

  317.     endwin();

  318. 

  319. #if defined HAVE_GETENV && defined HAVE_PUTENV

  320.     ncurses_uninstall_terminal(dp);

  321. #endif

  322. 

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

  324. 

  325.     return 0;

  326. }

  327. 

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

  329. {

  330.     _caca_set_term_title(title);

  331. 

  332.     return 0;

  333. }

  334. 

  335. static int ncurses_get_display_width(caca_display_t const *dp)

  336. {

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

  338.     return cucul_get_canvas_width(dp->cv) * 6;

  339. }

  340. 

  341. static int ncurses_get_display_height(caca_display_t const *dp)

  342. {

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

  344.     return cucul_get_canvas_height(dp->cv) * 10;

  345. }

  346. 

  347. static void ncurses_display(caca_display_t *dp)

  348. {

  349.     uint32_t const *cvchars = (uint32_t const *)cucul_get_canvas_chars(dp->cv);

  350.     uint32_t const *cvattrs = (uint32_t const *)cucul_get_canvas_attrs(dp->cv);

  351.     int width = cucul_get_canvas_width(dp->cv);

  352.     int height = cucul_get_canvas_height(dp->cv);

  353.     int x, y;

  354. 

  355.     for(y = 0; y < (int)height; y++)

  356.     {

  357.         move(y, 0);

  358.         for(x = width; x--; )

  359.         {

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

  361.             ncurses_write_utf32(*cvchars++);

  362.         }

  363.     }

  364.     

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

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

  367.     move(y, x);

  368. 

  369.     refresh();

  370. }

  371. 

  372. static void ncurses_handle_resize(caca_display_t *dp)

  373. {

  374.     struct winsize size;

  375. 

  376. #if defined HAVE_SYS_IOCTL_H

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

  378.     {

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

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

  381. #if defined HAVE_RESIZE_TERM

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

  383. #else

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

  385. #endif

  386.         wrefresh(curscr);

  387.         return;

  388.     }

  389. #endif

  390. 

  391.     /* Fallback */

  392.     dp->resize.w = cucul_get_canvas_width(dp->cv);

  393.     dp->resize.h = cucul_get_canvas_height(dp->cv);

  394. }

  395. 

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

  397. {

  398.     int intkey;

  399. 

  400.     intkey = getch();

  401.     if(intkey == ERR)

  402.     {

  403.         ev->type = CACA_EVENT_NONE;

  404.         return 0;

  405.     }

  406. 

  407.     if(intkey < 0x7f)

  408.     {

  409.         ev->type = CACA_EVENT_KEY_PRESS;

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

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

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

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

  414.         return 1;

  415.     }

  416. 

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

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

  419.     {

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

  421.         char utf8[7];

  422.         uint32_t utf32;

  423.         size_t i, bytes = 0;

  424. 

  425.         keys[0] = intkey;

  426.         utf8[0] = intkey;

  427. 

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

  429.         {

  430.             keys[i] = getch();

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

  432.         }

  433. 

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

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

  436. 

  437.         while(i > bytes)

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

  439. 

  440.         if(bytes)

  441.         {

  442.             ev->type = CACA_EVENT_KEY_PRESS;

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

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

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

  446.             return 1;

  447.         }

  448.     }

  449. 

  450.     if(intkey == KEY_MOUSE)

  451.     {

  452.         MEVENT mevent;

  453.         getmouse(&mevent);

  454. 

  455.         switch(mevent.bstate)

  456.         {

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

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

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

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

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

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

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

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

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

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

  467.             case BUTTON1_RESERVED_EVENT: break;

  468. 

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

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

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

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

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

  474.             case BUTTON2_RESERVED_EVENT: break;

  475. 

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

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

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

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

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

  481.             case BUTTON3_RESERVED_EVENT: break;

  482. 

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

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

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

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

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

  488.             case BUTTON4_RESERVED_EVENT: break;

  489. 

  490.             default:

  491.                 break;

  492. #undef PRESS

  493. #undef RELEASE

  494. #undef CLICK

  495.         }

  496. 

  497.         if(dp->mouse.x == mevent.x && dp->mouse.y == mevent.y)

  498.             return _pop_event(dp, ev);

  499. 

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

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

  502. 

  503.         ev->type = CACA_EVENT_MOUSE_MOTION;

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

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

  506.         return 1;

  507.     }

  508. 

  509.     switch(intkey)

  510.     {

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

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

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

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

  515. 

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

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

  518.         case 0x7f:

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

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

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

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

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

  524. 

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

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

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

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

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

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

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

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

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

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

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

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

  537. 

  538.         default:

  539.             /* Unknown key */

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

  541.     }

  542. 

  543.     ev->type = CACA_EVENT_KEY_PRESS;

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

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

  546.     return 1;

  547. }

  548. 

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

  550. {

  551.     curs_set(flags ? 2 : 0);

  552. }

  553. 

  554. /*

  555.  * XXX: following functions are local

  556.  */

  557. 

  558. #if defined HAVE_SIGNAL

  559. static RETSIGTYPE sigwinch_handler(int sig)

  560. {

  561.     sigwinch_d->resize.resized = 1;

  562. 

  563.     signal(SIGWINCH, sigwinch_handler);

  564. }

  565. #endif

  566. 

  567. #if defined HAVE_GETENV && defined HAVE_PUTENV

  568. static void ncurses_install_terminal(caca_display_t *dp)

  569. {

  570.     char *term, *colorterm;

  571. 

  572.     dp->drv.p->term = NULL;

  573. 

  574.     term = getenv("TERM");

  575.     colorterm = getenv("COLORTERM");

  576. 

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

  578.         return;

  579. 

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

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

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

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

  584.          || getenv("KONSOLE_DCOP_SESSION"))

  585.     {

  586.         SCREEN *screen;

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

  588.         if(screen == NULL)

  589.             return;

  590.         endwin();

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

  592.         dp->drv.p->term = strdup(term);

  593.         return;

  594.     }

  595. }

  596. 

  597. static void ncurses_uninstall_terminal(caca_display_t *dp)

  598. {

  599.     /* Needs to be persistent because we use putenv() */

  600.     static char termenv[1024];

  601. 

  602.     if(!dp->drv.p->term)

  603.         return;

  604. 

  605.     snprintf(termenv, 1023, "TERM=%s", dp->drv.p->term);

  606.     free(dp->drv.p->term);

  607.     (void)putenv(termenv);

  608. }

  609. #endif

  610. 

  611. static void ncurses_write_utf32(uint32_t ch)

  612. {

  613. #if defined HAVE_NCURSESW_NCURSES_H

  614.     char buf[10];

  615.     int bytes;

  616. #endif

  617. 

  618.     if(ch == CUCUL_MAGIC_FULLWIDTH)

  619.         return;

  620. 

  621. #if defined HAVE_NCURSESW_NCURSES_H

  622.     bytes = cucul_utf32_to_utf8(buf, ch);

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

  624.     addstr(buf);

  625. #else

  626.     if(ch < 0x80)

  627.     {

  628.         addch(ch);

  629.     }

  630.     else

  631.     {

  632.         chtype cch;

  633.         chtype cch2;

  634. 

  635.         cch = '?';

  636.         cch2 = ' ';

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

  638.         {

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

  640.         }

  641.         switch (ch)

  642.         {

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

  644.         case 0x00003000: /* 　 */

  645.             cch = ' ';

  646.             break;

  647.         case 0x000000a3: /* £ */

  648.             cch = ACS_STERLING;

  649.             break;

  650.         case 0x000000b0: /* ° */

  651.             cch = ACS_DEGREE;

  652.             break;

  653.         case 0x000000b1: /* ± */

  654.             cch = ACS_PLMINUS;

  655.             break;

  656.         case 0x000000b7: /* · */

  657.         case 0x00002219: /* ∙ */

  658.         case 0x000030fb: /* ・ */

  659.             cch = ACS_BULLET;

  660.             break;

  661.         case 0x000003c0: /* π */

  662.             cch = ACS_PI;

  663.             break;

  664.         case 0x00002018: /* ‘ */

  665.         case 0x00002019: /* ’ */

  666.             cch = '\'';

  667.             break;

  668.         case 0x0000201c: /* “ */

  669.         case 0x0000201d: /* ” */

  670.             cch = '"';

  671.             break;

  672.         case 0x00002190: /* ← */

  673.             cch = ACS_LARROW;

  674.             break;

  675.         case 0x00002191: /* ↑ */

  676.             cch = ACS_UARROW;

  677.             break;

  678.         case 0x00002192: /* → */

  679.             cch = ACS_RARROW;

  680.             break;

  681.         case 0x00002193: /* ↓ */

  682.             cch = ACS_DARROW;

  683.             break;

  684.         case 0x00002260: /* ≠ */

  685.             cch = ACS_NEQUAL;

  686.             break;

  687.         case 0x00002261: /* ≡ */

  688.             cch = '=';

  689.             break;

  690.         case 0x00002264: /* ≤ */

  691.             cch = ACS_LEQUAL;

  692.             break;

  693.         case 0x00002265: /* ≥ */

  694.             cch = ACS_GEQUAL;

  695.             break;

  696.         case 0x000023ba: /* ⎺ */

  697.             cch = ACS_S1;

  698.             cch2 = cch;

  699.             break;

  700.         case 0x000023bb: /* ⎻ */

  701.             cch = ACS_S3;

  702.             cch2 = cch;

  703.             break;

  704.         case 0x000023bc: /* ⎼ */

  705.             cch = ACS_S7;

  706.             cch2 = cch;

  707.             break;

  708.         case 0x000023bd: /* ⎽ */

  709.             cch = ACS_S9;

  710.             cch2 = cch;

  711.             break;

  712.         case 0x00002500: /* ─ */

  713.         case 0x00002550: /* ═ */

  714.             cch = ACS_HLINE;

  715.             cch2 = cch;

  716.             break;

  717.         case 0x00002502: /* │ */

  718.         case 0x00002551: /* ║ */

  719.             cch = ACS_VLINE;

  720.             break;

  721.         case 0x0000250c: /* ┌ */

  722.         case 0x00002552: /* ╒ */

  723.         case 0x00002553: /* ╓ */

  724.         case 0x00002554: /* ╔ */

  725.             cch = ACS_ULCORNER;

  726.             cch2 = ACS_HLINE;

  727.             break;

  728.         case 0x00002510: /* ┐ */

  729.         case 0x00002555: /* ╕ */

  730.         case 0x00002556: /* ╖ */

  731.         case 0x00002557: /* ╗ */

  732.             cch = ACS_URCORNER;

  733.             break;

  734.         case 0x00002514: /* └ */

  735.         case 0x00002558: /* ╘ */

  736.         case 0x00002559: /* ╙ */

  737.         case 0x0000255a: /* ╚ */

  738.             cch = ACS_LLCORNER;

  739.             cch2 = ACS_HLINE;

  740.             break;

  741.         case 0x00002518: /* ┘ */

  742.         case 0x0000255b: /* ╛ */

  743.         case 0x0000255c: /* ╜ */

  744.         case 0x0000255d: /* ╝ */

  745.             cch = ACS_LRCORNER;

  746.             break;

  747.         case 0x0000251c: /* ├ */

  748.         case 0x0000255e: /* ╞ */

  749.         case 0x0000255f: /* ╟ */

  750.         case 0x00002560: /* ╠ */

  751.             cch = ACS_LTEE;

  752.             cch2 = ACS_HLINE;

  753.             break;

  754.         case 0x00002524: /* ┤ */

  755.         case 0x00002561: /* ╡ */

  756.         case 0x00002562: /* ╢ */

  757.         case 0x00002563: /* ╣ */

  758.             cch = ACS_RTEE;

  759.             break;

  760.         case 0x0000252c: /* ┬ */

  761.         case 0x00002564: /* ╤ */

  762.         case 0x00002565: /* ╥ */

  763.         case 0x00002566: /* ╦ */

  764.             cch = ACS_TTEE;

  765.             cch2 = ACS_HLINE;

  766.             break;

  767.         case 0x00002534: /* ┴ */

  768.         case 0x00002567: /* ╧ */

  769.         case 0x00002568: /* ╨ */

  770.         case 0x00002569: /* ╩ */

  771.             cch = ACS_BTEE;

  772.             cch2 = ACS_HLINE;

  773.             break;

  774.         case 0x0000253c: /* ┼ */

  775.         case 0x0000256a: /* ╪ */

  776.         case 0x0000256b: /* ╫ */

  777.         case 0x0000256c: /* ╬ */

  778.             cch = ACS_PLUS;

  779.             cch2 = ACS_HLINE;

  780.             break;

  781.         case 0x00002591: /* ░ */

  782.             cch = ACS_BOARD;

  783.             cch2 = cch;

  784.             break;

  785.         case 0x00002592: /* ▒ */

  786.         case 0x00002593: /* ▓ */

  787.             cch = ACS_CKBOARD;

  788.             cch2 = cch;

  789.             break;

  790.         case 0x00002580: /* ▀ */

  791.         case 0x00002584: /* ▄ */

  792.         case 0x00002588: /* █ */

  793.         case 0x0000258c: /* ▌ */

  794.         case 0x00002590: /* ▐ */

  795.         case 0x000025a0: /* ■ */

  796.         case 0x000025ac: /* ▬ */

  797.         case 0x000025ae: /* ▮ */

  798.             cch = ACS_BLOCK;

  799.             cch2 = cch;

  800.             break;

  801.         case 0x000025c6: /* ◆ */

  802.         case 0x00002666: /* ♦ */

  803.             cch = ACS_DIAMOND;

  804.             break;

  805.         case 0x00002022: /* • */

  806.         case 0x000025cb: /* ○ */

  807.         case 0x000025cf: /* ● */

  808.         case 0x00002603: /* ☃ */

  809.         case 0x0000263c: /* ☼ */

  810.             cch = ACS_LANTERN;

  811.             break;

  812.         case 0x0000301c: /* 〜 */

  813.             cch = '~';

  814.             break;

  815.         }

  816.         addch(cch);

  817.         if(cucul_utf32_is_fullwidth(ch))

  818.         {

  819.             addch(cch2);

  820.         }

  821.     }

  822. #endif

  823. }

  824. 

  825. /*

  826.  * Driver initialisation

  827.  */

  828. 

  829. int ncurses_install(caca_display_t *dp)

  830. {

  831.     dp->drv.id = CACA_DRIVER_NCURSES;

  832.     dp->drv.driver = "ncurses";

  833. 

  834.     dp->drv.init_graphics = ncurses_init_graphics;

  835.     dp->drv.end_graphics = ncurses_end_graphics;

  836.     dp->drv.set_display_title = ncurses_set_display_title;

  837.     dp->drv.get_display_width = ncurses_get_display_width;

  838.     dp->drv.get_display_height = ncurses_get_display_height;

  839.     dp->drv.display = ncurses_display;

  840.     dp->drv.handle_resize = ncurses_handle_resize;

  841.     dp->drv.get_event = ncurses_get_event;

  842.     dp->drv.set_mouse = NULL;

  843.     dp->drv.set_cursor = ncurses_set_cursor;

  844. 

  845.     return 0;

  846. }

  847. 

  848. #endif /* USE_NCURSES */