]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/tty/tty_display.h
ncurses 5.0
[ncurses.git] / ncurses / tty / tty_display.h
diff --git a/ncurses/tty/tty_display.h b/ncurses/tty/tty_display.h
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+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ************************************************************************** */
+
+#ifndef TTY_DISPLAY_H
+#define TTY_DISPLAY_H 1
+
+extern bool _nc_tty_beep(void);
+extern bool _nc_tty_check_resize(void);
+extern bool _nc_tty_cursor(int);
+extern bool _nc_tty_flash(void);
+extern bool _nc_tty_init_color(int,int,int,int);
+extern bool _nc_tty_init_pair(int,int,int);
+extern bool _nc_tty_slk_hide(bool);
+extern bool _nc_tty_slk_update(int,const char *);
+extern bool _nc_tty_start_color(void);
+extern void _nc_tty_display_resume(void);
+extern void _nc_tty_display_suspend(void);
+extern void _nc_tty_dispose(void);     /* frees SP->_term */
+extern void _nc_tty_switch_to(void);
+extern void _nc_tty_update(void);
+
+struct tty_display_data {
+       int             _fifohold;      /* set if breakout marked           */
+       unsigned long   _current_attr;  /* terminal attribute current set   */
+       int             _cursrow;       /* physical cursor row (-1=unknown) */
+       int             _curscol;       /* physical cursor column           */
+
+       /* cursor movement costs; units are 10ths of milliseconds */
+       int             _char_padding;  /* cost of character put            */
+       int             _cr_cost;       /* cost of (carriage_return)        */
+       int             _cup_cost;      /* cost of (cursor_address)         */
+       int             _home_cost;     /* cost of (cursor_home)            */
+       int             _ll_cost;       /* cost of (cursor_to_ll)           */
+#if USE_HARD_TABS
+       int             _ht_cost;       /* cost of (tab)                    */
+       int             _cbt_cost;      /* cost of (backtab)                */
+#endif /* USE_HARD_TABS */
+       int             _cub1_cost;     /* cost of (cursor_left)            */
+       int             _cuf1_cost;     /* cost of (cursor_right)           */
+       int             _cud1_cost;     /* cost of (cursor_down)            */
+       int             _cuu1_cost;     /* cost of (cursor_up)              */
+       int             _cub_cost;      /* cost of (parm_cursor_left)       */
+       int             _cuf_cost;      /* cost of (parm_cursor_right)      */
+       int             _cud_cost;      /* cost of (parm_cursor_down)       */
+       int             _cuu_cost;      /* cost of (parm_cursor_up)         */
+       int             _hpa_cost;      /* cost of (column_address)         */
+       int             _vpa_cost;      /* cost of (row_address)            */
+       /* used in lib_doupdate.c, must be chars */
+       int             _ed_cost;       /* cost of (clr_eos)                */
+       int             _el_cost;       /* cost of (clr_eol)                */
+       int             _el1_cost;      /* cost of (clr_bol)                */
+       int             _dch1_cost;     /* cost of (delete_character)       */
+       int             _ich1_cost;     /* cost of (insert_character)       */
+       int             _dch_cost;      /* cost of (parm_dch)               */
+       int             _ich_cost;      /* cost of (parm_ich)               */
+       int             _ech_cost;      /* cost of (erase_chars)            */
+       int             _rep_cost;      /* cost of (repeat_char)            */
+       int             _hpa_ch_cost;   /* cost of (column_address)         */
+       int             _cup_ch_cost;   /* cost of (cursor_address)         */
+       int             _smir_cost;     /* cost of (enter_insert_mode)      */
+       int             _rmir_cost;     /* cost of (exit_insert_mode)       */
+       int             _ip_cost;       /* cost of (insert_padding)         */
+       /* used in lib_mvcur.c */
+       char *          _address_cursor;
+       int             _carriage_return_length;
+       int             _cursor_home_length;
+       int             _cursor_to_ll_length;
+
+       chtype          _xmc_suppress;  /* attributes to suppress if xmc     */
+       chtype          _xmc_triggers;  /* attributes to process if xmc      */
+
+       bool            _sig_winch;
+};
+
+
+#define DelCharCost(count) \
+               ((parm_dch != 0) \
+               ? D->_dch_cost \
+               : ((delete_character != 0) \
+                       ? (D->_dch1_cost * count) \
+                       : INFINITY))
+
+#define InsCharCost(count) \
+               ((parm_ich != 0) \
+               ? D->_ich_cost \
+               : ((enter_insert_mode && exit_insert_mode) \
+                 ? D->_smir_cost + D->_rmir_cost + (D->_ip_cost * count) \
+                 : ((insert_character != 0) \
+                   ? (D->_ich1_cost * count) \
+                   : INFINITY)))
+
+#if USE_XMC_SUPPORT
+#define UpdateAttrs(c) if (D->_current_attr != AttrOf(c)) { \
+                               attr_t chg = D->_current_attr; \
+                               vidattr(AttrOf(c)); \
+                               if (magic_cookie_glitch > 0 \
+                                && XMC_CHANGES((chg ^ D->_current_attr))) { \
+                                       T(("%s @%d before glitch %d,%d", \
+                                               __FILE__, __LINE__, \
+                                               D->_cursrow, \
+                                               D->_curscol)); \
+                                       _nc_do_xmc_glitch(chg); \
+                               } \
+                       }
+#else
+#define UpdateAttrs(c) if (D->_current_attr != AttrOf(c)) \
+                               vidattr(AttrOf(c));
+#endif
+
+/*
+ * Check whether the given character can be output by clearing commands.  This
+ * includes test for being a space and not including any 'bad' attributes, such
+ * as A_REVERSE.  All attribute flags which don't affect appearance of a space
+ * or can be output by clearing (A_COLOR in case of bce-terminal) are excluded.
+ */
+#define can_clear_with(ch) \
+       ((ch & ~(NONBLANK_ATTR|(back_color_erase ? A_COLOR:0))) == BLANK)
+
+#define XMC_CHANGES(c) ((c) & D->_xmc_suppress)
+
+#endif /* TTY_DISPLAY_H */