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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 "cucul.h"

  55. #include "caca.h"

  56. #include "caca_internals.h"

  57. 

  58. /*

  59.  * Emulation for missing ACS_* in older curses

  60.  */

  61. 

  62. #ifndef ACS_BLOCK

  63. #define ACS_BLOCK '#'

  64. #endif

  65. 

  66. #ifndef ACS_BOARD

  67. #define ACS_BOARD '#'

  68. #endif

  69. 

  70. #ifndef ACS_BTEE

  71. #define ACS_BTEE '+'

  72. #endif

  73. 

  74. #ifndef ACS_BULLET

  75. #define ACS_BULLET '.'

  76. #endif

  77. 

  78. #ifndef ACS_CKBOARD

  79. #define ACS_CKBOARD ':'

  80. #endif

  81. 

  82. #ifndef ACS_DARROW

  83. #define ACS_DARROW 'v'

  84. #endif

  85. 

  86. #ifndef ACS_DEGREE

  87. #define ACS_DEGREE '\''

  88. #endif

  89. 

  90. #ifndef ACS_DIAMOND

  91. #define ACS_DIAMOND '+'

  92. #endif

  93. 

  94. #ifndef ACS_GEQUAL

  95. #define ACS_GEQUAL '>'

  96. #endif

  97. 

  98. #ifndef ACS_HLINE

  99. #define ACS_HLINE '-'

  100. #endif

  101. 

  102. #ifndef ACS_LANTERN

  103. #define ACS_LANTERN '#'

  104. #endif

  105. 

  106. #ifndef ACS_LARROW

  107. #define ACS_LARROW '<'

  108. #endif

  109. 

  110. #ifndef ACS_LEQUAL

  111. #define ACS_LEQUAL '<'

  112. #endif

  113. 

  114. #ifndef ACS_LLCORNER

  115. #define ACS_LLCORNER '+'

  116. #endif

  117. 

  118. #ifndef ACS_LRCORNER

  119. #define ACS_LRCORNER '+'

  120. #endif

  121. 

  122. #ifndef ACS_LTEE

  123. #define ACS_LTEE '+'

  124. #endif

  125. 

  126. #ifndef ACS_NEQUAL

  127. #define ACS_NEQUAL '!'

  128. #endif

  129. 

  130. #ifndef ACS_PI

  131. #define ACS_PI '*'

  132. #endif

  133. 

  134. #ifndef ACS_STERLING

  135. #define ACS_STERLING 'f'

  136. #endif

  137. 

  138. #ifndef ACS_PLMINUS

  139. #define ACS_PLMINUS '#'

  140. #endif

  141. 

  142. #ifndef ACS_PLUS

  143. #define ACS_PLUS '+'

  144. #endif

  145. 

  146. #ifndef ACS_RARROW

  147. #define ACS_RARROW '>'

  148. #endif

  149. 

  150. #ifndef ACS_RTEE

  151. #define ACS_RTEE '+'

  152. #endif

  153. 

  154. #ifndef ACS_S1

  155. #define ACS_S1 '-'

  156. #endif

  157. 

  158. #ifndef ACS_S3

  159. #define ACS_S3 '-'

  160. #endif

  161. 

  162. #ifndef ACS_S7

  163. #define ACS_S7 '-'

  164. #endif

  165. 

  166. #ifndef ACS_S9

  167. #define ACS_S9 '-'

  168. #endif

  169. 

  170. #ifndef ACS_TTEE

  171. #define ACS_TTEE '+'

  172. #endif

  173. 

  174. #ifndef ACS_UARROW

  175. #define ACS_UARROW '^'

  176. #endif

  177. 

  178. #ifndef ACS_ULCORNER

  179. #define ACS_ULCORNER '+'

  180. #endif

  181. 

  182. #ifndef ACS_URCORNER

  183. #define ACS_URCORNER '+'

  184. #endif

  185. 

  186. #ifndef ACS_VLINE

  187. #define ACS_VLINE '|'

  188. #endif

  189. 

  190. /*

  191.  * Local functions

  192.  */

  193. 

  194. #if defined HAVE_SIGNAL

  195. static RETSIGTYPE sigwinch_handler(int);

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

  197. #endif

  198. #if defined HAVE_GETENV && defined HAVE_PUTENV

  199. static void ncurses_check_terminal(void);

  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. };

  208. 

  209. static int ncurses_init_graphics(caca_display_t *dp)

  210. {

  211.     static int curses_colors[] =

  212.     {

  213.         /* Standard curses colours */

  214.         COLOR_BLACK,

  215.         COLOR_BLUE,

  216.         COLOR_GREEN,

  217.         COLOR_CYAN,

  218.         COLOR_RED,

  219.         COLOR_MAGENTA,

  220.         COLOR_YELLOW,

  221.         COLOR_WHITE,

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

  223.         COLOR_BLACK + 8,

  224.         COLOR_BLUE + 8,

  225.         COLOR_GREEN + 8,

  226.         COLOR_CYAN + 8,

  227.         COLOR_RED + 8,

  228.         COLOR_MAGENTA + 8,

  229.         COLOR_YELLOW + 8,

  230.         COLOR_WHITE + 8

  231.     };

  232. 

  233.     mmask_t newmask;

  234.     int fg, bg, max;

  235. 

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

  237. 

  238. #if defined HAVE_GETENV && defined HAVE_PUTENV

  239.     ncurses_check_terminal();

  240. #endif

  241. 

  242. #if defined HAVE_SIGNAL

  243.     sigwinch_d = dp;

  244.     signal(SIGWINCH, sigwinch_handler);

  245. #endif

  246. 

  247. #if defined HAVE_LOCALE_H

  248.     setlocale(LC_ALL, "");

  249. #endif

  250. 

  251.     _caca_set_term_title("caca for ncurses");

  252. 

  253.     initscr();

  254.     keypad(stdscr, TRUE);

  255.     nonl();

  256.     raw();

  257.     noecho();

  258.     nodelay(stdscr, TRUE);

  259.     curs_set(0);

  260. 

  261.     /* Activate mouse */

  262.     newmask = REPORT_MOUSE_POSITION | ALL_MOUSE_EVENTS;

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

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

  265. 

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

  267.     ESCDELAY = 10;

  268. 

  269.     /* Activate colour */

  270.     start_color();

  271. 

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

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

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

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

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

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

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

  279. 

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

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

  282.         {

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

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

  285.              * colour pair to be redefined. */

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

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

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

  289. 

  290.             if(max == 8)

  291.             {

  292.                 /* Bright fg on simple bg */

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

  294.                 /* Simple fg on bright bg */

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

  296.                                                     | COLOR_PAIR(col);

  297.                 /* Bright fg on bright bg */

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

  299.                                                         | COLOR_PAIR(col);

  300.             }

  301.         }

  302. 

  303.     dp->resize.allow = 1;

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

  305.     dp->resize.allow = 0;

  306. 

  307.     return 0;

  308. }

  309. 

  310. static int ncurses_end_graphics(caca_display_t *dp)

  311. {

  312.     _caca_set_term_title("");

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

  314.     curs_set(1);

  315.     noraw();

  316.     endwin();

  317. 

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

  319. 

  320.     return 0;

  321. }

  322. 

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

  324. {

  325.     _caca_set_term_title(title);

  326. 

  327.     return 0;

  328. }

  329. 

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

  331. {

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

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

  334. }

  335. 

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

  337. {

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

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

  340. }

  341. 

  342. static void ncurses_display(caca_display_t *dp)

  343. {

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

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

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

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

  348.     int x, y;

  349. 

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

  351.     {

  352.         move(y, 0);

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

  354.         {

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

  356.             ncurses_write_utf32(*cvchars++);

  357.         }

  358.     }

  359.     

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

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

  362.     move(y, x);

  363. 

  364.     refresh();

  365. }

  366. 

  367. static void ncurses_handle_resize(caca_display_t *dp)

  368. {

  369.     struct winsize size;

  370. 

  371. #if defined HAVE_SYS_IOCTL_H

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

  373.     {

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

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

  376. #if defined HAVE_RESIZE_TERM

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

  378. #else

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

  380. #endif

  381.         wrefresh(curscr);

  382.         return;

  383.     }

  384. #endif

  385. 

  386.     /* Fallback */

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

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

  389. }

  390. 

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

  392. {

  393.     int intkey;

  394. 

  395.     intkey = getch();

  396.     if(intkey == ERR)

  397.     {

  398.         ev->type = CACA_EVENT_NONE;

  399.         return 0;

  400.     }

  401. 

  402.     if(intkey < 0x7f)

  403.     {

  404.         ev->type = CACA_EVENT_KEY_PRESS;

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

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

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

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

  409.         return 1;

  410.     }

  411. 

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

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

  414.     {

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

  416.         char utf8[7];

  417.         uint32_t utf32;

  418.         unsigned int i, bytes = 0;

  419. 

  420.         keys[0] = intkey;

  421.         utf8[0] = intkey;

  422. 

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

  424.         {

  425.             keys[i] = getch();

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

  427.         }

  428. 

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

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

  431. 

  432.         while(i > bytes)

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

  434. 

  435.         if(bytes)

  436.         {

  437.             ev->type = CACA_EVENT_KEY_PRESS;

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

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

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

  441.             return 1;

  442.         }

  443.     }

  444. 

  445.     if(intkey == KEY_MOUSE)

  446.     {

  447.         MEVENT mevent;

  448.         getmouse(&mevent);

  449. 

  450.         switch(mevent.bstate)

  451.         {

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

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

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

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

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

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

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

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

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

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

  462.             case BUTTON1_RESERVED_EVENT: break;

  463. 

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

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

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

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

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

  469.             case BUTTON2_RESERVED_EVENT: break;

  470. 

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

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

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

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

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

  476.             case BUTTON3_RESERVED_EVENT: break;

  477. 

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

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

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

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

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

  483.             case BUTTON4_RESERVED_EVENT: break;

  484. 

  485.             default:

  486.                 break;

  487. #undef PRESS

  488. #undef RELEASE

  489. #undef CLICK

  490.         }

  491. 

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

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

  494.             return _pop_event(dp, ev);

  495. 

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

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

  498. 

  499.         ev->type = CACA_EVENT_MOUSE_MOTION;

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

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

  502.         return 1;

  503.     }

  504. 

  505.     switch(intkey)

  506.     {

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

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

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

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

  511. 

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

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

  514.         case 0x7f:

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

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

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

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

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

  520. 

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

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

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

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

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

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

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

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

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

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

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

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

  533. 

  534.         default:

  535.             /* Unknown key */

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

  537.     }

  538. 

  539.     ev->type = CACA_EVENT_KEY_PRESS;

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

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

  542.     return 1;

  543. }

  544. 

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

  546. {

  547.     curs_set(flags ? 2 : 0);

  548. }

  549. 

  550. /*

  551.  * XXX: following functions are local

  552.  */

  553. 

  554. #if defined HAVE_SIGNAL

  555. static RETSIGTYPE sigwinch_handler(int sig)

  556. {

  557.     sigwinch_d->resize.resized = 1;

  558. 

  559.     signal(SIGWINCH, sigwinch_handler);

  560. }

  561. #endif

  562. 

  563. #if defined HAVE_GETENV && defined HAVE_PUTENV

  564. static void ncurses_check_terminal(void)

  565. {

  566.     char *term, *colorterm;

  567. 

  568.     term = getenv("TERM");

  569.     colorterm = getenv("COLORTERM");

  570. 

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

  572.         return;

  573. 

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

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

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

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

  578.          || getenv("KONSOLE_DCOP_SESSION"))

  579.     {

  580.         SCREEN *screen;

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

  582.         if(screen == NULL)

  583.             return;

  584.         endwin();

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

  586.         return;

  587.     }

  588. }

  589. #endif

  590. 

  591. static void ncurses_write_utf32(uint32_t ch)

  592. {

  593. #if defined HAVE_NCURSESW_NCURSES_H

  594.     char buf[10];

  595.     int bytes;

  596. #endif

  597. 

  598.     if(ch == CUCUL_MAGIC_FULLWIDTH)

  599.         return;

  600. 

  601. #if defined HAVE_NCURSESW_NCURSES_H

  602.     bytes = cucul_utf32_to_utf8(buf, ch);

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

  604.     addstr(buf);

  605. #else

  606.     if(ch < 0x80)

  607.     {

  608.         addch(ch);

  609.     }

  610.     else

  611.     {

  612.         chtype cch;

  613.         chtype cch2;

  614. 

  615.         cch = '?';

  616.         cch2 = ' ';

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

  618.         {

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

  620.         }

  621.         switch (ch)

  622.         {

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

  624.         case 0x00003000: /* 　 */

  625.             cch = ' ';

  626.             break;

  627.         case 0x000000a3: /* £ */

  628.             cch = ACS_STERLING;

  629.             break;

  630.         case 0x000000b0: /* ° */

  631.             cch = ACS_DEGREE;

  632.             break;

  633.         case 0x000000b1: /* ± */

  634.             cch = ACS_PLMINUS;

  635.             break;

  636.         case 0x000000b7: /* · */

  637.         case 0x00002219: /* ∙ */

  638.         case 0x000030fb: /* ・ */

  639.             cch = ACS_BULLET;

  640.             break;

  641.         case 0x000003c0: /* π */

  642.             cch = ACS_PI;

  643.             break;

  644.         case 0x00002018: /* ‘ */

  645.         case 0x00002019: /* ’ */

  646.             cch = '\'';

  647.             break;

  648.         case 0x0000201c: /* “ */

  649.         case 0x0000201d: /* ” */

  650.             cch = '"';

  651.             break;

  652.         case 0x00002190: /* ← */

  653.             cch = ACS_LARROW;

  654.             break;

  655.         case 0x00002191: /* ↑ */

  656.             cch = ACS_UARROW;

  657.             break;

  658.         case 0x00002192: /* → */

  659.             cch = ACS_RARROW;

  660.             break;

  661.         case 0x00002193: /* ↓ */

  662.             cch = ACS_DARROW;

  663.             break;

  664.         case 0x00002260: /* ≠ */

  665.             cch = ACS_NEQUAL;

  666.             break;

  667.         case 0x00002261: /* ≡ */

  668.             cch = '=';

  669.             break;

  670.         case 0x00002264: /* ≤ */

  671.             cch = ACS_LEQUAL;

  672.             break;

  673.         case 0x00002265: /* ≥ */

  674.             cch = ACS_GEQUAL;

  675.             break;

  676.         case 0x000023ba: /* ⎺ */

  677.             cch = ACS_S1;

  678.             cch2 = cch;

  679.             break;

  680.         case 0x000023bb: /* ⎻ */

  681.             cch = ACS_S3;

  682.             cch2 = cch;

  683.             break;

  684.         case 0x000023bc: /* ⎼ */

  685.             cch = ACS_S7;

  686.             cch2 = cch;

  687.             break;

  688.         case 0x000023bd: /* ⎽ */

  689.             cch = ACS_S9;

  690.             cch2 = cch;

  691.             break;

  692.         case 0x00002500: /* ─ */

  693.         case 0x00002550: /* ═ */

  694.             cch = ACS_HLINE;

  695.             cch2 = cch;

  696.             break;

  697.         case 0x00002502: /* │ */

  698.         case 0x00002551: /* ║ */

  699.             cch = ACS_VLINE;

  700.             break;

  701.         case 0x0000250c: /* ┌ */

  702.         case 0x00002552: /* ╒ */

  703.         case 0x00002553: /* ╓ */

  704.         case 0x00002554: /* ╔ */

  705.             cch = ACS_ULCORNER;

  706.             cch2 = ACS_HLINE;

  707.             break;

  708.         case 0x00002510: /* ┐ */

  709.         case 0x00002555: /* ╕ */

  710.         case 0x00002556: /* ╖ */

  711.         case 0x00002557: /* ╗ */

  712.             cch = ACS_URCORNER;

  713.             break;

  714.         case 0x00002514: /* └ */

  715.         case 0x00002558: /* ╘ */

  716.         case 0x00002559: /* ╙ */

  717.         case 0x0000255a: /* ╚ */

  718.             cch = ACS_LLCORNER;

  719.             cch2 = ACS_HLINE;

  720.             break;

  721.         case 0x00002518: /* ┘ */

  722.         case 0x0000255b: /* ╛ */

  723.         case 0x0000255c: /* ╜ */

  724.         case 0x0000255d: /* ╝ */

  725.             cch = ACS_LRCORNER;

  726.             break;

  727.         case 0x0000251c: /* ├ */

  728.         case 0x0000255e: /* ╞ */

  729.         case 0x0000255f: /* ╟ */

  730.         case 0x00002560: /* ╠ */

  731.             cch = ACS_LTEE;

  732.             cch2 = ACS_HLINE;

  733.             break;

  734.         case 0x00002524: /* ┤ */

  735.         case 0x00002561: /* ╡ */

  736.         case 0x00002562: /* ╢ */

  737.         case 0x00002563: /* ╣ */

  738.             cch = ACS_RTEE;

  739.             break;

  740.         case 0x0000252c: /* ┬ */

  741.         case 0x00002564: /* ╤ */

  742.         case 0x00002565: /* ╥ */

  743.         case 0x00002566: /* ╦ */

  744.             cch = ACS_TTEE;

  745.             cch2 = ACS_HLINE;

  746.             break;

  747.         case 0x00002534: /* ┴ */

  748.         case 0x00002567: /* ╧ */

  749.         case 0x00002568: /* ╨ */

  750.         case 0x00002569: /* ╩ */

  751.             cch = ACS_BTEE;

  752.             cch2 = ACS_HLINE;

  753.             break;

  754.         case 0x0000253c: /* ┼ */

  755.         case 0x0000256a: /* ╪ */

  756.         case 0x0000256b: /* ╫ */

  757.         case 0x0000256c: /* ╬ */

  758.             cch = ACS_PLUS;

  759.             cch2 = ACS_HLINE;

  760.             break;

  761.         case 0x00002591: /* ░ */

  762.             cch = ACS_BOARD;

  763.             cch2 = cch;

  764.             break;

  765.         case 0x00002592: /* ▒ */

  766.         case 0x00002593: /* ▓ */

  767.             cch = ACS_CKBOARD;

  768.             cch2 = cch;

  769.             break;

  770.         case 0x00002580: /* ▀ */

  771.         case 0x00002584: /* ▄ */

  772.         case 0x00002588: /* █ */

  773.         case 0x0000258c: /* ▌ */

  774.         case 0x00002590: /* ▐ */

  775.         case 0x000025a0: /* ■ */

  776.         case 0x000025ac: /* ▬ */

  777.         case 0x000025ae: /* ▮ */

  778.             cch = ACS_BLOCK;

  779.             cch2 = cch;

  780.             break;

  781.         case 0x000025c6: /* ◆ */

  782.         case 0x00002666: /* ♦ */

  783.             cch = ACS_DIAMOND;

  784.             break;

  785.         case 0x00002022: /* • */

  786.         case 0x000025cb: /* ○ */

  787.         case 0x000025cf: /* ● */

  788.         case 0x00002603: /* ☃ */

  789.         case 0x0000263c: /* ☼ */

  790.             cch = ACS_LANTERN;

  791.             break;

  792.         case 0x0000301c: /* 〜 */

  793.             cch = '~';

  794.             break;

  795.         }

  796.         addch(cch);

  797.         if(cucul_utf32_is_fullwidth(ch))

  798.         {

  799.             addch(cch2);

  800.         }

  801.     }

  802. #endif

  803. }

  804. 

  805. /*

  806.  * Driver initialisation

  807.  */

  808. 

  809. int ncurses_install(caca_display_t *dp)

  810. {

  811.     dp->drv.driver = CACA_DRIVER_NCURSES;

  812. 

  813.     dp->drv.init_graphics = ncurses_init_graphics;

  814.     dp->drv.end_graphics = ncurses_end_graphics;

  815.     dp->drv.set_display_title = ncurses_set_display_title;

  816.     dp->drv.get_display_width = ncurses_get_display_width;

  817.     dp->drv.get_display_height = ncurses_get_display_height;

  818.     dp->drv.display = ncurses_display;

  819.     dp->drv.handle_resize = ncurses_handle_resize;

  820.     dp->drv.get_event = ncurses_get_event;

  821.     dp->drv.set_mouse = NULL;

  822.     dp->drv.set_cursor = ncurses_set_cursor;

  823. 

  824.     return 0;

  825. }

  826. 

  827. #endif /* USE_NCURSES */