tkgen.c

fsmlabs的real time linux的内核

    /*
     * Now that the whole window is in place, we need to wait for an "update"
     * so we can tell the canvas what its virtual size should be.
     *
     * Unfortunately, this causes some ugly screen-flashing because the whole
     * window is drawn, and then it is immediately resized.  It seems
     * unavoidable, though, since "frame" objects won't tell us their size
     * until after an update, and "canvas" objects can't automatically pack
     * around frames.  Sigh.
     */
    printf( "\tupdate idletasks\n" );
    printf( "\t$w.config.canvas create window 0 0 -anchor nw -window $w.config.f\n\n" );
    printf( "\t$w.config.canvas configure \\\n" );
    printf( "\t\t-width [expr [winfo reqwidth $w.config.f] + 1]\\\n" );
    printf( "\t\t-scrollregion \"-1 -1 [expr [winfo reqwidth $w.config.f] + 1] \\\n" );
    printf( "\t\t\t [expr [winfo reqheight $w.config.f] + 1]\"\n\n" );
	 
    /*
     * If the whole canvas will fit in 3/4 of the screen height, do it;
     * otherwise, resize to around 1/2 the screen and let us scroll.
     */
    printf( "\tset winy [expr [winfo reqh $w] - [winfo reqh $w.config.canvas]]\n" );
    printf( "\tset scry [expr [winfo screenh $w] / 2]\n" );
    printf( "\tset maxy [expr [winfo screenh $w] * 3 / 4]\n" );
    printf( "\tset canvtotal [expr [winfo reqh $w.config.f] + 2]\n" );
    printf( "\tif [expr $winy + $canvtotal < $maxy] {\n" );
    printf( "\t\t$w.config.canvas configure -height $canvtotal\n" );
    printf( "\t} else {\n" );
    printf( "\t\t$w.config.canvas configure -height [expr $scry - $winy]\n" );
    printf( "\t}\n" );

    /*
     * Limit the min/max window size.  Height can vary, but not width,
     * because of the limitations of canvas and our laziness.
     */
    printf( "\tupdate idletasks\n" );
    printf( "\twm maxsize $w [winfo width $w] [winfo screenheight $w]\n" );
    printf( "\twm minsize $w [winfo width $w] 100\n\n" );
    printf( "\twm deiconify $w\n" );
    printf( "}\n\n\n" );

    /*
     * Now we generate the companion procedure for the menu we just
     * generated.  This procedure contains all of the code to
     * disable/enable widgets based upon the settings of the other
     * widgets, and will be called first when the window is mapped,
     * and each time one of the buttons in the window are clicked.
     */
    printf( "proc update_menu%d {} {\n", menu_num );

    /*
     * Clear all of the booleans that are defined in this menu.
     */
    clear_globalflags();
    for ( cfg = scfg; cfg != NULL; cfg = cfg->next )
    {
	if ( cfg->menu_number == menu_num
	&&   cfg->token != token_mainmenu_option
	&&   cfg->token != token_choice_item )
	{
	    if ( cfg->cond != NULL )
	    {
		int i;
		if ( (cfg->token == token_tristate || cfg->token == token_dep_tristate)
		&& ! vartable[i = get_varnum( "CONFIG_MODULES" )].global_written )
		{
		    global( "CONFIG_MODULES" );
		    vartable[i].global_written = 1;
		}
		generate_if( cfg, cfg->cond, cfg->menu_number, cfg->menu_line );
	    }
	    else
	    {
		if ( cfg->token == token_tristate )
		{
		    if ( ! vartable[cfg->nameindex].global_written )
		    {
			vartable[cfg->nameindex].global_written = 1;
			printf( "\tglobal %s\n", vartable[cfg->nameindex].name );
		    }
		    if ( ! vartable[i = get_varnum( "CONFIG_MODULES" )].global_written )
		    {
			global( "CONFIG_MODULES" );
			vartable[i].global_written = 1;
		    }
		    printf( "\n\tif {($CONFIG_MODULES == 1)} then {configure_entry .menu%d.config.f.x%d normal {m}} else {configure_entry .menu%d.config.f.x%d disabled {m}}\n",
			menu_num, cfg->menu_line,
			menu_num, cfg->menu_line );
		}
	    }
	}
	else if ( cfg->token == token_mainmenu_option
	     &&   cfg->menu_number == menu_num
	     &&   cfg->cond != NULL )
	{
	    generate_if( cfg, cfg->cond, menu_num, cfg->menu_line );
	}
    }
    printf("}\n\n\n");

    generate_update_var( scfg, menu_num );
}

/*
 * This is the top level function for generating the tk script.
 */
void dump_tk_script( struct kconfig * scfg )
{
    int menu_depth;
    int menu_num [64];
    int imenu, i;
    int top_level_num = 0;
    struct kconfig * cfg;
    struct kconfig * cfg1 = NULL;
    const char * name = "No Name";

    /*
     * Mark begin and end of each menu so I can omit submenus when walking
     * over a parent menu.
     */
    tot_menu_num = 0;
    menu_depth   = 0;
    menu_num [0] = 0;

    for ( cfg = scfg; cfg != NULL; cfg = cfg->next )
    {
	switch ( cfg->token )
	{
	default:
	    break;

	case token_mainmenu_name:
	    name = cfg->label;
	    break;

	case token_mainmenu_option:
	    if ( ++menu_depth >= 64 )
		{ fprintf( stderr, "menus too deep\n" ); exit( 1 ); }
	    if ( ++tot_menu_num >= 100 )
		{ fprintf( stderr, "too many menus\n" ); exit( 1 ); }
	    menu_num   [menu_depth]   = tot_menu_num;
	    menu_first [tot_menu_num] = cfg;
	    menu_last  [tot_menu_num] = cfg;
	    /*
	     * Note, that menu_number is set to the number of parent 
	     * (upper level) menu.
	     */
	    cfg->menu_number = menu_num[menu_depth - 1];
	    if ( menu_depth == 1 )
		++top_level_num;
	    break;

	case token_endmenu:
	    menu_last [menu_num [menu_depth]] = cfg;
	    /* flatten menus with proper scoping */
	    if ( --menu_depth < 0 )
		{ fprintf( stderr, "unmatched endmenu\n" ); exit( 1 ); }
	    break;

	case token_bool:
	case token_choice_header:
	case token_choice_item:
	case token_dep_bool:
	case token_dep_tristate:
	case token_dep_mbool:
	case token_hex:
	case token_int:
	case token_string:
	case token_tristate:
	    cfg->menu_number = menu_num[menu_depth];
	    if ( menu_depth == 0 )
		{ fprintf( stderr, "statement not in menu\n" ); exit( 1 ); }
	    break;

	case token_define_bool:
	case token_define_hex:
	case token_define_int:
	case token_define_string:
	case token_define_tristate:
	case token_unset:
	    cfg->menu_number = menu_num[menu_depth];
	    break;
	}
    }

    /*
     * Generate menus per column setting.
     * There are:
     *   four extra buttons for save/quit/load/store;
     *   one blank button
     *   add two to round up for division
     */
    printf( "set menus_per_column %d\n", (top_level_num + 4 + 1 + 2) / 3 );
    printf( "set total_menus %d\n\n", tot_menu_num );

    printf( "proc toplevel_menu {num} {\n" );
    for ( imenu = 1; imenu <= tot_menu_num; ++imenu )
    {
	int parent = 1;

	if ( menu_first[imenu]->menu_number == 0 )
	    parent = menu_first[imenu]->menu_number;
	else
	    printf( "\tif {$num == %d} then {return %d}\n",
		imenu, menu_first[imenu]->menu_number );
    }
    printf( "\treturn $num\n}\n\n" );

    /*
     * Generate the menus.
     */
    printf( "mainmenu_name \"%s\"\n", name );
    for ( imenu = 1; imenu <= tot_menu_num; ++imenu )
    {
	int menu_line = 0;
	int nr_submenu = imenu;

	clear_globalflags();
	start_proc( menu_first[imenu]->label, imenu, 
		!menu_first[imenu]->menu_number );

	for ( cfg = menu_first[imenu]->next; cfg != NULL && cfg != menu_last[imenu]; cfg = cfg->next )
	{
	    switch ( cfg->token )
	    {
	    default:
		break;

	    case token_mainmenu_option:
		while ( menu_first[++nr_submenu]->menu_number > imenu )
		    ;
		cfg->menu_line = menu_line++;
		printf( "\tsubmenu $w.config.f %d %d \"%s\" %d\n",
		    cfg->menu_number, cfg->menu_line, cfg->label, nr_submenu );
		cfg = menu_last[nr_submenu];
		break;

	    case token_bool:
		cfg->menu_line = menu_line++;
		printf( "\tbool $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;

	    case token_choice_header:
		/*
		 * I need the first token_choice_item to pick out the right
		 * help text from doc/Configure.help.
		 */
		cfg->menu_line = menu_line++;
		printf( "\tglobal tmpvar_%d\n", -(cfg->nameindex) );
		printf( "\tminimenu $w.config.f %d %d \"%s\" tmpvar_%d %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    -(cfg->nameindex), vartable[cfg->next->nameindex].name );
		printf( "\tmenu $w.config.f.x%d.x.menu\n", cfg->menu_line );
		cfg1 = cfg;
		break;

	    case token_choice_item:
		/* note: no menu line; uses choice header menu line */
		printf( "\t$w.config.f.x%d.x.menu add radiobutton -label \"%s\" -variable tmpvar_%d -value \"%s\" -command \"update_active\"\n",
		    cfg1->menu_line, cfg->label, -(cfg1->nameindex),
		    cfg->label );
		break;

	    case token_dep_bool:
	    case token_dep_mbool:
		cfg->menu_line = menu_line++;
		printf( "\tdep_bool $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;

	    case token_dep_tristate:
		cfg->menu_line = menu_line++;
		printf( "\tdep_tristate $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;

	    case token_hex:
		cfg->menu_line = menu_line++;
		printf( "\thex $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;

	    case token_int:
		cfg->menu_line = menu_line++;
		printf( "\tint $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;

	    case token_string:
		cfg->menu_line = menu_line++;
		printf( "\tistring $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;

	    case token_tristate:
		cfg->menu_line = menu_line++;
		printf( "\ttristate $w.config.f %d %d \"%s\" %s\n",
		    cfg->menu_number, cfg->menu_line, cfg->label,
		    vartable[cfg->nameindex].name );
		break;
	    }
	}

	end_proc( scfg, imenu );
    }

    /*
     * The top level menu also needs an update function.  When we update a
     * submenu, we may need to disable one or more of the submenus on
     * the top level menu, and this procedure will ensure that things are
     * correct.
     */
    clear_globalflags();
    printf( "proc update_mainmenu {}  {\n" );
    for ( imenu = 1; imenu <= tot_menu_num; imenu++ )
    {
	if ( menu_first[imenu]->cond != NULL && menu_first[imenu]->menu_number == 0 )
	    generate_if( menu_first[imenu], menu_first[imenu]->cond, imenu, -1 );
    }
    printf( "}\n\n\n" );

    clear_globalflags();
    /*
     * Generate code to load the default settings into the variables.
     * The script in tail.tk will attempt to load .config,
     * which may override these settings, but that's OK.
     */
    for ( cfg = scfg; cfg != NULL; cfg = cfg->next )
    {
	switch ( cfg->token )
	{
	default:
	    break;

	case token_bool:
	case token_choice_item:
	case token_dep_bool:
	case token_dep_tristate:
	case token_dep_mbool:
	case token_tristate:
	    if ( ! vartable[cfg->nameindex].global_written )
	    {
		printf( "set %s 0\n", vartable[cfg->nameindex].name );
		vartable[cfg->nameindex].global_written = 1;
	    }
	    break;

	case token_choice_header:
	    printf( "set tmpvar_%d \"(not set)\"\n", -(cfg->nameindex) );
	    break;

	case token_hex:
	case token_int:
	    if ( ! vartable[cfg->nameindex].global_written )
	    {
		printf( "set %s %s\n", vartable[cfg->nameindex].name, cfg->value ? cfg->value : "0" );
		vartable[cfg->nameindex].global_written = 1;
	    }
	    break;

	case token_string:
	    if ( ! vartable[cfg->nameindex].global_written )
	    {
		printf( "set %s \"%s\"\n", vartable[cfg->nameindex].name, cfg->value );
		vartable[cfg->nameindex].global_written = 1;
	    }
	    break;
	}
    }

    /*
     * Define to an empty value all other variables (which are never defined)
     */
    for ( i = 1; i <= max_varnum; i++ )
    {
	if ( ! vartable[i].global_written
	&&   strncmp( vartable[i].name, "CONSTANT_", 9 ) )
	    printf( "set %s 4\n", vartable[i].name );
    }

    /*
     * Generate a function to write all of the variables to a file.
     */
    printf( "proc writeconfig {file1 file2} {\n" );
    printf( "\tset cfg [open $file1 w]\n" );
    printf( "\tset autocfg [open $file2 w]\n" );
    printf( "\tset notmod 1\n" );
    printf( "\tset notset 0\n" );
    printf( "\tputs $cfg \"#\"\n");
    printf( "\tputs $cfg \"# Automatically generated make config: don't edit\"\n");
    printf( "\tputs $cfg \"#\"\n" );

    printf( "\tputs $autocfg \"/*\"\n" );
    printf( "\tputs $autocfg \" * Automatically generated C config: don't edit\"\n" );
    printf( "\tputs $autocfg \" */\"\n" );
    printf( "\tputs $autocfg \"#define RTL_AUTOCONF_INCLUDED\"\n" );

    clear_globalflags();
    for ( cfg = scfg; cfg != NULL; cfg = cfg->next )
    {
	switch ( cfg->token )
	{
	default:
	    break;

	case token_bool:
	case token_choice_header:
	case token_comment:
	case token_define_bool:
	case token_define_hex:
	case token_define_int:
	case token_define_string:
	case token_define_tristate:
	case token_dep_bool:
	case token_dep_tristate:
	case token_dep_mbool:
	case token_hex:
	case token_int:
	case token_string:
	case token_tristate:
	    generate_writeconfig( cfg );
	    break;
	}
    }
    printf( "\tclose $cfg\n" );
    printf( "\tclose $autocfg\n" );
    printf( "}\n\n\n" );

    /*
     * Generate a simple function that updates the master choice
     * variable depending upon what values were loaded from a .config
     * file.  
     */
    printf( "proc clear_choices { } {\n" );
    for ( cfg = scfg; cfg != NULL; cfg = cfg->next )
    {
	if ( cfg->token == token_choice_header )
	{
	    for ( cfg1  = cfg->next; 
		  cfg1 != NULL && cfg1->token == token_choice_item;
		  cfg1  = cfg1->next )
	    {
		printf( "\tglobal %s; set %s 0\n",
		    vartable[cfg1->nameindex].name,
		    vartable[cfg1->nameindex].name );
	    }
	}
    }
    printf( "}\n\n\n" );

    printf( "proc update_choices { } {\n" );
    for ( cfg = scfg; cfg != NULL; cfg = cfg->next )
    {
	if ( cfg->token == token_choice_header )
	{
	    printf( "\tglobal tmpvar_%d\n", -(cfg->nameindex) );
	    printf("\tset tmpvar_%d \"%s\"\n", -(cfg->nameindex), cfg->value);
	    for ( cfg1  = cfg->next; 
		  cfg1 != NULL && cfg1->token == token_choice_item;
		  cfg1  = cfg1->next )
	    {
		printf( "\tglobal %s\n", vartable[cfg1->nameindex].name );
		printf( "\tif { $%s == 1 } then { set tmpvar_%d \"%s\" }\n",
		    vartable[cfg1->nameindex].name,
		    -(cfg->nameindex), cfg1->label );
	    }
	}
    }
    printf( "}\n\n\n" );

    generate_update_var( scfg, 0 );

    /*
     * That's it.  We are done.  The output of this file will have header.tk
     * prepended and tail.tk appended to create an executable wish script.
     */
}