init.c

Mrxvt是一个小巧

#endif
			DEFAULT_DISPLAY_TAB_TXT;

	if( rs[Rs_minVisibleTabs] )
	{
		register int	n = atoi( rs[Rs_minVisibleTabs] );
		r->TermWin.minVisibleTabs = (n >= 2 && n <= MAX_PAGES) ?
			n : DEFAULT_MIN_VISIBLE_TABS;
	}
	else r->TermWin.minVisibleTabs = DEFAULT_MIN_VISIBLE_TABS;

#ifndef NO_FRILLS
	if (rs[Rs_int_bwidth])
	{
		register int	tmp = atoi( rs[Rs_int_bwidth] );
		r->TermWin.int_bwidth =( tmp >= 0 && tmp <= MAX_INTERNALBORDERWIDTH ) ?
										tmp : DEFAULT_INTERNALBORDERWIDTH;
	}

	if (rs[Rs_ext_bwidth])
	{
		register int	tmp = atoi( rs[Rs_ext_bwidth] );
		r->TermWin.ext_bwidth = (tmp >= 0 && tmp <= MAX_EXTERNALBORDERWIDTH) ?
										tmp : DEFAULT_EXTERNALBORDERWIDTH;
	}
#endif

#ifndef NO_LINESPACE
	if (rs[Rs_lineSpace])
	{
		register int	tmp = atoi( rs[Rs_lineSpace] );
		r->TermWin.lineSpace = (tmp >= 0 && tmp <= MAX_LINESPACE) ?
										tmp : DEFAULT_LINESPACE;
	}
#endif

#ifdef POINTER_BLANK
	if (rs[Rs_pointerBlankDelay])
	{
		register int	tmp = atoi( rs[Rs_pointerBlankDelay] );
		r->h->pointerBlankDelay = (tmp >= 0 && tmp <= MAX_BLANKDELAY) ?
										tmp : DEFAULT_BLANKDELAY;
	}
#endif

	/* Handle opacity of translucent window */
	if (rs[Rs_opacity])	
	{
		register int	tmp = atoi( rs[Rs_opacity] );
		r->TermWin.opacity = (tmp >= 0 && tmp <= 100) ? 100 - tmp : 0;

#ifdef TRANSPARENT
		if (
			  None != r->h->xa[XA_NET_WM_WINDOW_OPACITY]
			  && r->Options & Opt_transparent
		   )
		{
			/* Override pseudo-transparent */
			r->Options &= ~Opt_transparent;
		}
#endif
	}
	if (rs[Rs_opacityDegree])	
	{
		register int	tmp = atoi (rs[Rs_opacityDegree]);
		r->TermWin.opacity_degree = (tmp > 0 && tmp <= 100) ? tmp : 1;
	}

#ifdef TINTING_SUPPORT
	if (rs[Rs_shade])
	{
		register int	shade;
		shade = atoi( rs[Rs_shade] );
		if (shade < 0 || shade > 100)
			shade = 100;
		r->TermWin.shade = 100 - shade;
	}
#endif

#ifdef TRANSPARENT
	if (rs[Rs_bgRefreshInterval])
	{
		register unsigned long interval = atol( rs[Rs_bgRefreshInterval] );

		if( interval > 1000 ) interval = 1000;
		r->h->bgRefreshInterval = interval * 1000L; /* convert to micro-sec */
	}
#endif

#ifdef OFF_FOCUS_FADING
	if (rs[Rs_fade])
	{
		register int	fade;
		fade = atoi (rs[Rs_fade]);
		if (fade < 0 || fade > 100)
			fade = 100;
		r->TermWin.fade = 100 - fade;
	}
#endif

#ifdef CURSOR_BLINK
	if (rs[Rs_cursorBlinkInterval])
	{
		register long	tmp = atol( rs[Rs_cursorBlinkInterval] );
		r->h->blinkInterval = (tmp >= MIN_BLINK_TIME && tmp <= MAX_BLINK_TIME) ? tmp : DEFAULT_BLINK_TIME;
	}
	/* convert msec to usec */
	r->h->blinkInterval *= 1000;
#endif

#ifdef PRINTPIPE
	if (!rs[Rs_print_pipe])
		rs[Rs_print_pipe] = PRINTPIPE;
#endif
	if (!rs[Rs_cutchars])
		rs[Rs_cutchars] = CUTCHARS;

#ifdef ACS_ASCII
	if( !rs[Rs_acs_chars] )
		rs[Rs_acs_chars] = ACS_CHARS;
	if( (i = STRLEN(rs[Rs_acs_chars])) < 0x20 )
	{
		val = rxvt_realloc( (void*) rs[Rs_acs_chars], 0x20 );
		for( ; i < 0x20; )
			val[i++] = ' ';
		rs[Rs_acs_chars] = val;
	}
#endif

#ifndef NO_BACKSPACE_KEY
	if( !rs[Rs_backspace_key] )
# ifdef DEFAULT_BACKSPACE
		r->h->key_backspace = DEFAULT_BACKSPACE;
# else
		r->h->key_backspace = "DEC";	/* can toggle between \010 or \177 */
# endif
	else
	{
		char*	val = STRDUP(rs[Rs_backspace_key]);
		rxvt_str_trim( val );
		rxvt_str_escaped( val );
		r->h->key_backspace = val;
	}
#endif
#ifndef NO_DELETE_KEY
	if( !rs[Rs_delete_key] )
# ifdef DEFAULT_DELETE
		r->h->key_delete = DEFAULT_DELETE;
# else
		r->h->key_delete = "\033[3~";
# endif
	else
	{
		char *val = STRDUP( rs[Rs_delete_key] );
		rxvt_str_trim( val );
		rxvt_str_escaped( val );
		r->h->key_delete = val;
	}
#endif
	if( rs[Rs_answerbackstring] )
	{
		rxvt_str_trim( (char*) rs[Rs_answerbackstring] );
		rxvt_str_escaped( (char*) rs[Rs_answerbackstring] );
	}

	if( rs[Rs_selectstyle] )
	{
		if( STRNCASECMP( rs[Rs_selectstyle], "oldword", 7 ) == 0 )
			r->selection_style = OLD_WORD_SELECT;
#ifndef NO_OLD_SELECTION
		else if( STRNCASECMP( rs[Rs_selectstyle], "old", 3 ) == 0 )
			r->selection_style = OLD_SELECT;
#endif
	}


	/* Set default X11 fonts */
	rxvt_set_default_font_x11( r );
#ifdef XFT_SUPPORT
	if( rs[Rs_xftsz] )
	{
		int		sz = atoi( rs[Rs_xftsz] );
		r->TermWin.xftsize = (sz >= MIN_XFT_FONT_SIZE) ? sz : MIN_XFT_FONT_SIZE;
	}
	else /* default xft font size */
		r->TermWin.xftsize = DEFAULT_XFT_FONT_SIZE;

	if (rs[Rs_xftpsz])
	{
		int		sz = atoi (rs[Rs_xftpsz]);
		r->TermWin.xftpsize  =  (sz >= MIN_XFT_FONT_SIZE) ?
										sz : MIN_XFT_FONT_SIZE;
	}
	else /* default xft Pfont size */
		r->TermWin.xftpsize = DEFAULT_XFT_PFONT_SIZE;

# ifdef MULTICHAR_SET
	if (rs[Rs_xftmsz])
	{
		int		sz = (int) atof (rs[Rs_xftmsz]);
		r->TermWin.xftmsize = (sz >= MIN_XFT_FONT_SIZE) ?
										sz : MIN_XFT_FONT_SIZE;
	}
	else /* default xft font size */
		r->TermWin.xftmsize = DEFAULT_XFT_FONT_SIZE;
# endif	/* MULTICHAR_SET */

	/* Set default Freetype fonts */
	rxvt_set_default_font_xft (r);
#endif	/* XFT_SUPPORT */


#ifdef TEXT_SHADOW
	rxvt_init_shadow_mode (r, rs[Rs_textShadowMode]);
#endif

#ifdef XTERM_REVERSE_VIDEO
	/* this is how xterm implements reverseVideo */
	if (r->Options & Opt_reverseVideo)
	{
		if (!rs[Rs_color + Color_fg])
			rs[Rs_color + Color_fg] = def_colorName[Color_bg];

		if (!rs[Rs_color + Color_bg])
			rs[Rs_color + Color_bg] = def_colorName[Color_fg];

		for (i = 0; i < MAX_PROFILES; i++)
		{
			int		vtfg = Rs_foreground + i;
			int		vtbg = Rs_background + i;

			char*	fg = (char*) rs[vtfg];
			char*	bg = (char*) rs[vtbg];

			/* foreground color of i terminal */
			if (ISSET_VTFG(r, i))
				rs[vtfg] = ISSET_VTBG(r, i) ? bg :
								def_colorName[Color_bg];
			/* background color of i terminal */
			if (ISSET_VTBG(r, i))
				rs[vtbg] = ISSET_VTFG(r, i) ? fg :
							def_colorName[Color_fg];
		}
	}
#endif

	for (i = 0; i < NRS_COLORS; i++)
		if (!rs[Rs_color + i])
			rs[Rs_color + i] = def_colorName[i];

#ifndef XTERM_REVERSE_VIDEO
	/* this is how we implement reverseVideo */
	if (r->Options & Opt_reverseVideo)
	{
		SWAP_IT(rs[Rs_color + Color_fg], rs[Rs_color + Color_bg], const char *);

		for (i = 0; i < MAX_PROFILES; i++)
		{
			int		vtfg = Rs_foreground + i;
			int		vtbg = Rs_background + i;
			SWAP_IT(rs[vtfg], rs[vtbg], const char*);
		}
	}
#endif

	/* convenient aliases for setting fg/bg to colors */
	rxvt_color_aliases(r, Color_fg);
	rxvt_color_aliases(r, Color_bg);
#ifndef NO_CURSORCOLOR
	rxvt_color_aliases(r, Color_cursor);
	rxvt_color_aliases(r, Color_cursor2);
#endif				/* NO_CURSORCOLOR */
	rxvt_color_aliases(r, Color_pointer);
	rxvt_color_aliases(r, Color_border);
#ifndef NO_BOLD_UNDERLINE_REVERSE
	rxvt_color_aliases(r, Color_BD);
	rxvt_color_aliases(r, Color_UL);
	rxvt_color_aliases(r, Color_RV);
#endif				/* ! NO_BOLD_UNDERLINE_REVERSE */

	/*
	 * On startup, use autohideTabbar to override hideTabbar. Thus on startup,
	 * using autohideTabbar will only display the tabbar if there are multiple
	 * tabs. The user can hide / show the tabbar using a macro at will.
	 */
	if( r->Options2 & Opt2_autohideTabbar )
		r->Options2 |= Opt2_hideTabbar;

	/* Cleanup the macro list */
	rxvt_cleanup_macros( r );


	/*
	 * Profile settings.
	 */
	for( i=0; i < MAX_PROFILES; i++ )
	{
		/* Set saveLines */
		if( r->h->rs[Rs_saveLines + i] )
		{
			int tmp = atoi( r->h->rs[Rs_saveLines + i] );

			r->profile[i].saveLines = ( tmp >= 0 && tmp <= MAX_SAVELINES ) ?
					tmp : DEFAULT_SAVELINES;
		}
		else
			r->profile[i].saveLines = ( i > 0 ) ? r->profile[0].saveLines :
															DEFAULT_SAVELINES;
	}

#ifdef OS_LINUX
	if( !r->h->rs[Rs_cwd] )
		r->h->rs[Rs_cwd] = ".";
#endif

	return cmd_argv;
}

/*----------------------------------------------------------------------*/
/* EXTPROTO */
void
rxvt_init_env(rxvt_t *r)
{
	int				i;
	unsigned int	u;
	char*			val;


#ifdef DISPLAY_IS_IP
	/* Fixup display_name for export over pty to any interested
	** terminal clients via "ESC[7n" (e.g. shells).  Note we use
	** the pure IP number (for the first non-loopback interface)
	** that we get from rxvt_network_display(). This is more
	** "name-resolution-portable", if you will, and probably allows
	** for faster x-client startup if your name server is beyond
	** a slow link or overloaded at client startup. Of course that
	** only helps the shell's child processes, not us.
	**
	** Giving out the display_name also affords a potential
	** security hole
	*/
	val = rxvt_network_display(r->h->rs[Rs_display_name]);
	r->h->rs[Rs_display_name] = (const char *)val;
	if (val == NULL)
#endif				/* DISPLAY_IS_IP */
	val = XDisplayString(r->Xdisplay);
	if (r->h->rs[Rs_display_name] == NULL)
		r->h->rs[Rs_display_name] = val;	/* use broken `:0' value */

	i = STRLEN(val) + 9;
	if (i <= 0 || i > 1024)	/* possible integer overflow */
		i = 1024;
	r->h->env_display = rxvt_malloc(i * sizeof(char));
	STRCPY (r->h->env_display, "DISPLAY=");
	STRNCAT (r->h->env_display, val, i-9);
	r->h->env_display[i-1] = (char) 0;

	/* avoiding the math library:
	 * i = (int)(ceil(log10((unsigned int)r->TermWin.parent))) */
	for (i = 0, u = (unsigned int)r->TermWin.parent; u; u /= 10, i++)
		;
	MAX_IT(i, 1);
	r->h->env_windowid = rxvt_malloc((i + 10) * sizeof(char));

	sprintf(r->h->env_windowid, "WINDOWID=%u",
		(unsigned int)r->TermWin.parent);

	/*
	** add entries to the environment:
	** @ DISPLAY:   in case we started with -display
	** @ WINDOWID:  X window id number of the window
	** @ COLORTERM: terminal sub-name and also indicates its color
	** @ TERM:		terminal name
	** @ TERMINFO:	path to terminfo directory
	*/
#ifdef HAVE_PUTENV
	putenv(r->h->env_display);
	putenv(r->h->env_windowid);

# ifdef RXVT_TERMINFO
	putenv("TERMINFO=" RXVT_TERMINFO);
# endif
	if (XDEPTH <= 2)
		putenv("COLORTERM=" COLORTERMENV "-mono");
	else
		putenv("COLORTERM=" COLORTERMENVFULL);
	if (r->h->rs[Rs_term_name] != NULL)
	{
		int		l = 6 + STRLEN(r->h->rs[Rs_term_name]);
		if (l <= 0 || l > 1024)	/* possible integer overflow */
			l = 1024;
		r->h->env_term = rxvt_malloc(l * sizeof(char));
		STRCPY (r->h->env_term, "TERM=");
		STRNCAT (r->h->env_term, r->h->rs[Rs_term_name], l-6);
		r->h->env_term[l-1] = (char) 0;
		putenv(r->h->env_term);
	}
	else
		putenv("TERM=" TERMENV);
#endif	/* HAVE_PUTENV */

#ifdef HAVE_UNSETENV
	/* avoid passing old settings and confusing term size */
	unsetenv("LINES");
	unsetenv("COLUMNS");
	unsetenv("TERMCAP");	/* terminfo should be okay */
#endif				/* HAVE_UNSETENV */

	/*
	** allocate environment variable for MRXVT_TABTITLE, we will
	** use it in rxvt_create_termwin later for each tab terminal
	*/
	r->h->env_tabtitle = rxvt_malloc(sizeof(TABTITLEENV) + MAX_TAB_TXT + 1);
}

/*----------------------------------------------------------------------*/
/*
 * This is more or less stolen straight from XFree86 xterm.
 * This should support all European type languages.
 */
/* EXTPROTO */
void
rxvt_init_xlocale(rxvt_t *r)
{
#ifdef USE_XIM
	if (r->h->locale == NULL)
		rxvt_print_error("Setting locale failed.");
	else
	{
		XChangeProperty(r->Xdisplay, r->TermWin.parent,
			r->h->xa[XA_WM_LOCALE_NAME], XA_STRING, 8, PropModeReplace,
			(unsigned char *)r->h->locale, STRLEN(r->h->locale));

		if (XSupportsLocale() != True)
		{
			rxvt_print_error("The locale is not supported by Xlib");
			return;
		}
		rxvt_IM_set_fontset (r, 0);

		/* see if we can connect yet */
		rxvt_IM_init_callback (r->Xdisplay, NULL, NULL);

		/* To avoid Segmentation Fault in C locale: Solaris only? */
		if (STRCMP(r->h->locale, "C"))
			XRegisterIMInstantiateCallback(r->Xdisplay, NULL, NULL,
				NULL, rxvt_IM_init_callback, NULL);
	}
#endif
}

/*----------------------------------------------------------------------*/


/* EXTPROTO */
void
rxvt_init_command(rxvt_t* r, const char *const *argv)
{
	/*
	 * Initialize the command connection. This should be called after the X
	 * server connection is established.
	 */
	struct sigaction	act;


	/*
	 * Enable delete window protocol so that if the top-level window of the
	 * terminal is destroyed by the Session Manager, we can receive a
	 * ClientMessage event and do something gracefully.
	 */
	XSetWMProtocols (r->Xdisplay, r->TermWin.parent,
			&(r->h->xa[XA_WMDELETEWINDOW]), 1);

#ifdef META8_OPTION
	r->h->meta_char = (r->Options & Opt_meta8 ? 0x80 : C0_ESC);
#endif
	rxvt_get_ourmods(r);

#ifdef GREEK_SUPPORT
	greek_init();
#endif

	r->Xfd = XConnectionNumber(r->Xdisplay);

#ifdef CURSOR_BLINK
	if (r->Options & Opt_cursorBlink)
		(void)gettimeofday(&r->h->lastcursorchange, NULL);
#endif

	/*
	 * Gracefully exit on term signals.
	 */
	act.sa_handler	= rxvt_Exit_signal;
	act.sa_flags	= 0;
	sigemptyset (&act.sa_mask);

#ifndef OS_SVR4
	sigaction( SIGINT , &act, NULL);
#endif
	sigaction( SIGQUIT, &act, NULL);
	sigaction( SIGTERM, &act, NULL);

	/*
	 * 2006-04-28 gi1242: Ignore HUP signals. We sometimes receive this if bash
	 * is killed. Chances are that we don't have to exit ...
	 */
	act.sa_handler	= SIG_IGN;
	sigaction( SIGHUP, &act, NULL);

#ifdef PRINTPIPE
	/*
	 * 2006-04-28 gi1242: If there is an error opening the printer command, then
	 * we'll get SIGPIPE. If not handled, mrxvt will exit.
	 * 
	 * There's nothing we really need to do on broken pipes, so just ignore
	 * SIGPIPE for now.
	 */
	sigaction( SIGPIPE, &act, NULL);
#endif

	act.sa_handler	= rxvt_Child_signal;
	sigaction (SIGCHLD, &act, NULL);
}


#ifdef OFF_FOCUS_FADING
/* EXTPROTO */
unsigned long
rxvt_fade_color (rxvt_t* r, unsigned long pixel)
{
	if (r->h->rs[Rs_fade])
	{
		XColor	faded_xcol;

		faded_xcol.pixel = pixel;
		XQueryColor (r->Xdisplay, XCMAP, &faded_xcol);
		faded_xcol.red   = (faded_xcol.red / 100) * r->TermWin.fade;
		faded_xcol.green = (faded_xcol.green / 100) * r->TermWin.fade;
		faded_xcol.blue  = (faded_xcol.blue / 100) * r->TermWin.fade;

		rxvt_alloc_color (r, &faded_xcol, "Faded");
		return faded_xcol.pixel;
	}

	return pixel;
}
#endif


/*
 * rxvt_restore_ufbg_color should always be called before
 * rxvt_restore_pix_color.
 */