defaultsedit.c

操作系统SunOS 4.1.3版本的源码

}				


/*
 * Initialize panel items for program names panel subwindow,  progpanel
 * This panel contains all names of programs which have been specified
 * in the master defaults file
 * Also set initial value of cur_progitem to an appropriate value
 * "SunView" is selected if present, otherwise the first one.
 */
static int
prog_swinit()
{
	char		full_name[DE_FULLNAME_MAX_LENGTH];	/* Full name of node */
	int		i;
	char		*attrs[DE_MAX_SCREENS];
	
	cur_progvalue = NULL;
	deflt_get_fullchild("/", full_name);

	attrs[0] = (char *)PANEL_CHOICE_STRINGS;
	i = 1;
	while (full_name !=NULL && strlen(full_name) != 0) {
	    prog_names[i] = (caddr_t) strcpy(getchars(strlen(full_name)),
		full_name);
	    attrs[i] = &prog_names[i][1]; /* strip leading / */
	    if (strequal(full_name,"/SunView")) cur_progvalue = i;
	    deflt_get_fullsibling("/", full_name, full_name);
	    i++;
	}
	attrs[i++] = 0;
	attrs[i] = 0;

	(void)panel_create_item(menupanel, PANEL_CYCLE,
		  ATTR_LIST,		attrs,
		  PANEL_VALUE,		cur_progvalue ? cur_progvalue-1 : 0,
		  PANEL_LABEL_STRING, 	"Category", 
		  PANEL_NOTIFY_PROC,	 prog_notifyproc,
		      0);
}



/*
 * Initialize panel items for tree panel subwindow,  treepanel.
 * This subwindow displays part of the defaults database pertaining to
 * any selected program which have entry in the master defaults database.
 * The treepanel actually displays the text and choice items to which the
 * user inputs his parameters.
 * Also initialize the 2-line help window with a message
 */
static int
tree_swinit(height)
    int	    height;
{
	treepanel = panel_begin(tool,
	    PANEL_VERTICAL_SCROLLBAR,   
 	    scrollbar_build((caddr_t)0),
	    PANEL_HEIGHT, height, 
	    0);
	if (treepanel == NULL) deferror("Can't create tree panel", True);
	cur_ylinenr = 0;
	if (get_cur_progname()==NULL) {
	    show_message((char *)NULL,
              "No entries in master defaults database directory (/usr/lib/defaults)", "");
	} else {
	    subtree_show();
	    show_message((char *)NULL,
	    "Get HELP by clicking the left button on the appropriate label or string",
	    "" );
	}
	return (int)panel_get(treepanel, PANEL_HEIGHT);
}


/*
 * Initialize a text subwindow of height pixels
 */
static int
text_swinit(height)
    int	    height;
{
    textwindow=textsw_build(tool, 
	TEXTSW_HEIGHT, height, 
        0);
    return height;
}    



/*
 * Initilize panel help subwindow  helppanel
 * The help subwindow contains essentially one text item,  which labels and
 * values (= helpmessages or other messages)
 */
static int
help_swinit()
{
	char	dummyname[DE_FULLNAME_MAX_LENGTH];
	int	i;
	Defobj	defobjptr;


	helppanel = panel_begin(tool,
		PANEL_HEIGHT, PANEL_CU(2)+2,
	 	   0);
	if (helppanel == NULL) deferror("Can't create tree panel", True);

	/* Create a dummy node name of length DE_FULLNAME_MAX_LENGTH-1 */
	for(i=0;i<DE_FULLNAME_MAX_LENGTH-1;i++){
	    dummyname[i]=' ';
	}
	dummyname[DE_FULLNAME_MAX_LENGTH-1]='\0';

	defobjptr = create_defobj(dummyname, Helpstring);
	(void)strcpy(defobjptr->nodename, "");
	
	helpdisplayitem = panel_create_item(helppanel, PANEL_TEXT,
		PANEL_LABEL_STRING,	"Helplabel",
		PANEL_LABEL_BOLD,	True,
		PANEL_VALUE_STORED_LENGTH,	DE_HELP_TEXT_ALLOC_LENGTH-1,
		PANEL_VALUE_DISPLAY_LENGTH,	DE_HELP_TEXT_ALLOC_LENGTH-1,
		PANEL_VALUE,	"",
		PANEL_LAYOUT, PANEL_VERTICAL,
		PANEL_EVENT_PROC, help_text_eventproc, 
		PANEL_CLIENT_DATA, defobjptr, 
	0);
	defobjptr->ilabel = helpdisplayitem;
	defobjptr->ivalue = helpdisplayitem;

	return (int)panel_get(helppanel, PANEL_HEIGHT);
	}


/*
 * Return the defaults database full name (like "/Scrollbar") from the
 * currently selected button item in the progpanel.
 */
static char*
get_cur_progname()
{
	return (prog_names[cur_progvalue]);
}



static char
confirm_category_switch_msg[] =
"You have not saved your changes. If you switch categories without \
saving your changes, the changes will be lost.  Press the left  \
mouse button to switch categories and discard the changes you  \
have made.  Press the right button to remain in this category.";


Debug(
    Bool t_prog_notifyproc = False;
    )

#define NUMWINDOWS 5
static	Cursor	oldcursor[NUMWINDOWS];
static	char	*window[NUMWINDOWS];

/*
 * This event proc is called whenever one of the program name buttons
 * in the progpanel are clicked on.
 */
/* ARGSUSED */
static void
prog_notifyproc(item, value, event)
	Panel_item	item;
	struct inputevent *event;
{
        Bool 	any_change;
	int  	fd, i, result;
	static	first;
	Event	alert_event;

	if (first == 0) {
		window[0] = menupanel;
		window[1] = treepanel;
		window[2] = textwindow;
		window[3] = helppanel;
		window[4] = (char *)tool;
		first = 1;
		for (i = 0; i < NUMWINDOWS; i++)
			oldcursor[i] = cursor_create((char *)0);
	}
	for (i = 0; i < NUMWINDOWS; i++) {
		fd = win_get_fd(window[i]);
		win_getcursor(fd, oldcursor[i]);
		win_setcursor(fd, &defaultsedit_hourglass_cursor);
	}
	tool_set_attributes(tool, WIN_LABEL, "wait...", 0);

        any_change = subtree_extractinfo((Bool)FALSE);
	    /*
	     * pass False to subtree_extractinfo() to that 
             * it will onnly check for changed values and
	     * not actually read those changed values from
	     * the panel into memory.
	     */

        Debug(if (t_prog_notifyproc) printf("<prog_notifyproc: any_change=%d> ",
		any_change);)

	if (!any_change) {
	    result = 1;
	} else {
	    result = alert_prompt(
		    (Frame)0,
		    &alert_event,
		    ALERT_MESSAGE_STRINGS,
		        "You have not saved your changes.",
			"If you switch categories without saving",
			"your changes, the changes will be discarded.",
			"Please confirm.",
		        0,
		    ALERT_BUTTON_YES,	"Confirm, discard changes",
		    ALERT_BUTTON_NO,	"Cancel",
		    0);
	    if (result == ALERT_YES) {
		result = 1;
	    } else result = 0;
	}
	if (result == 0) {
	    (void)panel_set(item, PANEL_VALUE, cur_progvalue-1, 0);
	} else {
	    subtree_clearitems();

	    /* values are 1 base, not zero based */
	    cur_progvalue = value + 1;
	    subtree_show();
	}

	/* Remember to reset cursor and namestripe */

	for (i = 0; i < NUMWINDOWS; i++) {
		fd = win_get_fd(window[i]);
		win_setcursor(fd, oldcursor[i]);
	}
	tool_set_attributes(tool, WIN_LABEL, "defaultsedit", 0);
}



/*
 * Run a specialized setup program like Scrolldemo or Indenttool
 * in order to set parameters for the currently selected program.
 * The setup program name is stored under the node "/$Setup_program"
 */
static void
run_setup_prog()
{
	int	pid;	/* Process identification for child demo */
	char	childforkname[DE_FULLNAME_MAX_LENGTH];
	char	namenode[DE_FULLNAME_MAX_LENGTH];
	int	result;
	Event	alert_event;

	(void)strcpy(namenode, get_cur_progname());
	(void)strcat(namenode, "/$Setup_program");

	if (defaults_exists(namenode, (int *)NULL)) {
	    (void)strcpy(childforkname,
		defaults_get_string(namenode, "", (int *)NULL));
	    result = alert_prompt(
		    (Frame)0,
		    &alert_event,
		    ALERT_MESSAGE_STRINGS,
		        "Attempting to run Demo/Setup program.",
			"All changes done to default values will be",
			"saved before starting Demo program.",
			"Please confirm startup.",
		        0,
		    ALERT_BUTTON_YES,	"Confirm, start Demo",
		    ALERT_BUTTON_NO,	"Cancel",
		    0);
	    switch (result) {
		    case ALERT_YES: 
		        result = 1;
		        break;
		    case ALERT_NO:
		        return;
		    default: /* alert_failed */
			return;
	    }

	    show_message((char *)NULL, "Saving defaults parameters before calling demo program", "");
	    sleep(1);
	    (void) subtree_extractinfo(True);
	    dump_default_trees();
	    show_message((char *)NULL, "Starting child process with demo program, wait...", childforkname);
		  /* start child process to run setup in */
	    pid = start_child_proc(childforkname, False, False, (union wait *)NULL);
	     /* demo_child_wait3 is called when demo_child finish processing */
	    (void)notify_set_wait3_func(menupanel, demo_child_wait3, pid);
	}
	else
 	  show_message((char *)NULL, "Could not find any demo program name in defaults database, program: ", namenode);

}



/* 
 * Called when clicked on the Save button in the menu window
 * Save current defaults
 */
/* ARGSUSED */
static void
menu_save_notifyproc(item,  event)
	Panel_item		item;
	Event			event;
{
	(void) subtree_extractinfo(True);
	dump_default_trees();
}



static char
confirm_quit_with_changes_msg[] =
"Press the left mouse button to Quit without saving changes.  \
Press the right mouse button to cancel.";

static char 
confirm_quit_msg[] =
"Press the left mouse button to confirm Quit.  \
Press the right mouse button now to cancel.";

/* 
 * Called when clicked on the Quit button in the menu window
 * Quits the program without saving anyting
 */


/* ARGSUSED */
static void
menu_quit_notifyproc(item,  event)
	Panel_item		item;
	Event			event;
{
        Bool any_change;
	int	result;
	Event	alert_event;

        any_change = subtree_extractinfo((Bool)FALSE);
	/*
	* pass False to subtree_extractinfo() to that 
	* it will onnly check for changed values and
	* not actually read those changed values from
	* the panel into memory.
	*/

	if (any_change) {
		result = alert_prompt(
		    (Frame)0,
		    &alert_event,
		    ALERT_MESSAGE_STRINGS,
			"Quiting will discard unsaved changes.",
			"Please confirm.",
			0,
		    ALERT_BUTTON_YES,	"Confirm, discard changes",
		    ALERT_BUTTON_NO,	"Cancel",
		    0);
		    if (result == ALERT_YES) /* confirmed */
			exit(0);
	} else {
		result = alert_prompt(
		    (Frame)0,
		    &alert_event,
		    ALERT_MESSAGE_STRINGS,
			"Are you sure you want to Quit?",
			0,
		    ALERT_BUTTON_YES,	"Confirm",
		    ALERT_BUTTON_NO,	"Cancel",
		    ALERT_OPTIONAL,	1,
		    ALERT_NO_BEEPING,	1,
		    0);
		    if (result == ALERT_YES) /* confirmed */
			exit(0);
	}
}

	
/* 
 * Called when clicked on the Reset button in the menu subwindow
 * Resets the current panel to its state when it was opened.
 */
/* ARGSUSED */
static void
menu_reset_notifyproc(item,  event)
	Panel_item		item;
	Event			event;
{
	subtree_clearitems();
	subtree_show();
	show_message((char *)NULL, "", "");
}




/*
 * Check if user has previously clicked on a valid text object item
 */
static Bool
check_clicked_defobj(allowenumflg)
    Bool    allowenumflg;
{
    if (last_clicked_defobj==NULL) {
	show_message((char *)NULL, "First click on an item which may contain text or numeric data!", "");
	return False;
    }
    allowenumflg = (Bool) (allowenumflg && (last_clicked_defobj->nodetype==Enumerate || last_clicked_defobj->nodetype==Editenumerate));
    
    if (! (allowenumflg   ||
	   last_clicked_defobj->nodetype==String     || 
	   last_clicked_defobj->nodetype==Editstring || 
	   last_clicked_defobj->nodetype==Helpstring)) {
	show_message((char *)NULL, "Last clicked object does not contain textdata or numeric data!", "");
	return False;
    }    
    return True;
}



/* 
 * Edit the label on the item last clicked
 */
/* ARGSUSED */
static void
menu_labeledit_notifyproc(it,  event)
	Panel_item	it;
	Event		event;
{
	Defobj		defobjptr;
	Panel_item	old;

	if (!check_clicked_defobj(True)) return;
	if (last_clicked_defobj->nodetype==Helpstring) {
	    show_message((char *)NULL, "Click on an item first!", "");
	    return;
	}
	defobjptr = last_clicked_defobj;
	if  (defobjptr->nodetype==Editstring ||
             defobjptr->nodetype==Editenumerate) {
		/* Label is already in an editable state */
		return;
		
	}

	old = defobjptr->ilabel;
	if (defobjptr->nodetype==Enumerate) {
	    defobjptr->nodetype=Editenumerate;
	    defobjptr->ilabel=panel_create_item(treepanel, PANEL_TEXT,
		PANEL_ITEM_X, PANEL_CU(0),
		PANEL_ITEM_Y, (int)panel_get(old, PANEL_ITEM_Y),