778 lines
20 KiB
Groff
778 lines
20 KiB
Groff
.\"
|
|
.\" Copyright (c) 1995, Jordan Hubbard
|
|
.\"
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This manual page may be used, modified, copied, distributed, and
|
|
.\" sold, in both source and binary form provided that the above
|
|
.\" copyright and these terms are retained, verbatim, as the first
|
|
.\" lines of this file. Under no circumstances is the author
|
|
.\" responsible for the proper functioning of the software described herein
|
|
.\" nor does the author assume any responsibility for damages incurred with
|
|
.\" its use.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd January 1, 2000
|
|
.Dt DIALOG 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm draw_shadow ,
|
|
.Nm draw_box ,
|
|
.Nm line_edit ,
|
|
.Nm strheight ,
|
|
.Nm strwidth ,
|
|
.Nm dialog_create_rc ,
|
|
.Nm dialog_yesno ,
|
|
.Nm dialog_noyes ,
|
|
.Nm dialog_prgbox ,
|
|
.Nm dialog_msgbox ,
|
|
.Nm dialog_textbox ,
|
|
.Nm dialog_menu ,
|
|
.Nm dialog_checklist ,
|
|
.Nm dialog_radiolist ,
|
|
.Nm dialog_inputbox ,
|
|
.Nm dialog_clear_norefresh ,
|
|
.Nm dialog_clear ,
|
|
.Nm dialog_update ,
|
|
.Nm dialog_fselect ,
|
|
.Nm dialog_notify ,
|
|
.Nm dialog_mesgbox ,
|
|
.Nm dialog_gauge ,
|
|
.Nm init_dialog ,
|
|
.Nm end_dialog ,
|
|
.Nm use_helpfile ,
|
|
.Nm use_helpline ,
|
|
.Nm get_helpline ,
|
|
.Nm restore_helpline ,
|
|
.Nm dialog_ftree ,
|
|
.Nm dialog_tree
|
|
.Nd provide a simple ncurses-based GUI interface
|
|
.Sh SYNOPSIS
|
|
.In dialog.h
|
|
.Ft "void"
|
|
.Fn draw_shadow "WINDOW *win" "int y" "int x" "int height" "int width"
|
|
.Ft "void"
|
|
.Fn draw_box "WINDOW *win" "int y" "int x" "int height" "int width" "chtype box" "chtype border"
|
|
.Ft "int"
|
|
.Fo line_edit
|
|
.Fa "WINDOW *dialog"
|
|
.Fa "int box_y"
|
|
.Fa "int box_x"
|
|
.Fa "int flen"
|
|
.Fa "int box_width"
|
|
.Fa "chtype attr"
|
|
.Fa "int first"
|
|
.Fa "unsigned char *result"
|
|
.Fa "int attr_mask"
|
|
.Fc
|
|
.Ft "int"
|
|
.Fn strheight "const char *p"
|
|
.Ft "int"
|
|
.Fn strwidth "const char *p"
|
|
.Ft "void"
|
|
.Fn dialog_create_rc "unsigned char *filename"
|
|
.Ft "int"
|
|
.Fn dialog_yesno "unsigned char *title" "unsigned char *prompt" "int height" "int width"
|
|
.Ft "int"
|
|
.Fn dialog_noyes "unsigned char *title" "unsigned char *prompt" "int height" "int width"
|
|
.Ft "int"
|
|
.Fn dialog_prgbox "unsigned char *title" "const unsigned char *line" "int height" "int width" "int pause" "int use_shell"
|
|
.Ft "int"
|
|
.Fn dialog_textbox "unsigned char *title" "unsigned char *file" "int height" "int width"
|
|
.Ft "int"
|
|
.Fo dialog_menu
|
|
.Fa "unsigned char *title"
|
|
.Fa "unsigned char *prompt"
|
|
.Fa "int height"
|
|
.Fa "int width"
|
|
.Fa "int menu_height"
|
|
.Fa "int cnt"
|
|
.Fa "void *it"
|
|
.Fa "unsigned char *result"
|
|
.Fa "int *ch"
|
|
.Fa "int *sc"
|
|
.Fc
|
|
.Ft "int"
|
|
.Fn dialog_checklist "unsigned char *title" "unsigned char *prompt" "int height" "int width" "int list_height" "int cnt" "void *it" "unsigned char *result"
|
|
.Ft "int"
|
|
.Fn dialog_radiolist "unsigned char *title" "unsigned char *prompt" "int height" "int width" "int list_height" "int cnt" "void *it" "unsigned char *result"
|
|
.Ft "int"
|
|
.Fn dialog_inputbox "unsigned char *title" "unsigned char *prompt" "int height" "int width" "unsigned char *result"
|
|
.Ft "char *"
|
|
.Fn dialog_fselect "char *dir" "char *fmask"
|
|
.Ft "int"
|
|
.Fn dialog_dselect "char *dir" "char *fmask"
|
|
.Ft "void"
|
|
.Fn dialog_notify "char *msg"
|
|
.Ft "int"
|
|
.Fn dialog_mesgbox "unsigned char *title" "unsigned char *prompt" "int height" "int width"
|
|
.Ft "void"
|
|
.Fn dialog_gauge "char *title" "char *prompt" "int y" "int x" "int height" "int width" "int perc"
|
|
.Ft "void"
|
|
.Fn use_helpfile "char *hfile"
|
|
.Ft "void"
|
|
.Fn use_helpline "char *hline"
|
|
.Ft "char *"
|
|
.Fn get_helpline "void"
|
|
.Ft "void"
|
|
.Fn dialog_clear_norefresh "void"
|
|
.Ft "void"
|
|
.Fn dialog_clear "void"
|
|
.Ft "void"
|
|
.Fn dialog_update "void"
|
|
.Ft "void"
|
|
.Fn init_dialog "void"
|
|
.Ft "void"
|
|
.Fn end_dialog "void"
|
|
.Ft "int"
|
|
.Fn dialog_ftree "unsigned char *filename" "unsigned char FS" "unsigned char *title" "unsigned char *prompt" "int height" "int width" "int menu_height" "unsigned char **result"
|
|
.Ft "int"
|
|
.Fo dialog_tree
|
|
.Fa "unsigned char **names"
|
|
.Fa "int size"
|
|
.Fa "unsigned char FS"
|
|
.Fa "unsigned char *title"
|
|
.Fa "unsigned char *prompt"
|
|
.Fa "int height"
|
|
.Fa "int width"
|
|
.Fa "int menu_height"
|
|
.Fa "unsigned char **result"
|
|
.Fc
|
|
.Sh DESCRIPTION
|
|
The dialog library attempts to provide a fairly simplistic set of
|
|
fixed-presentation menus, input boxes, gauges, file requestors and
|
|
other general purpose GUI (a bit of a stretch, since it uses
|
|
ncurses) objects. Since the library also had its roots in a
|
|
shell-script writer's utility (see the
|
|
.Xr dialog 1
|
|
command), the
|
|
early API was somewhat primitively based on strings being passed in or
|
|
out and parsed. This API was later extended to take either the
|
|
original arguments or arrays of
|
|
.Va dialogMenuItem
|
|
structures,
|
|
giving the user much more control over the internal behavior of each
|
|
control. The
|
|
.Va dialogMenuItem
|
|
structure internals are public:
|
|
.Bd -literal -offset indent
|
|
typedef struct _dmenu_item {
|
|
char *prompt;
|
|
char *title;
|
|
int (*checked)(struct _dmenu_item *self);
|
|
int (*fire)(struct _dmenu_item *self);
|
|
int (*selected)(struct _dmenu_item *self, int is_selected);
|
|
void *data;
|
|
char lbra, mark, rbra;
|
|
long aux;
|
|
} dialogMenuItem;
|
|
.Ed
|
|
.Pp
|
|
The
|
|
.Dv prompt
|
|
and
|
|
.Dv title
|
|
strings are pretty much self-explanatory,
|
|
and the
|
|
.Va checked
|
|
and
|
|
.Va fire
|
|
function pointers provide optional
|
|
display and action hooks (the
|
|
.Dv data
|
|
variable being available for
|
|
the convenience of those hooks) when more tightly coupled feedback between
|
|
a menu object and user code is required. The
|
|
.Va selected
|
|
hook also
|
|
allows you to verify whether or not a given item is selected (the cursor is
|
|
over it) for implementing pretty much any possible context-sensitive
|
|
behavior. A number of clever tricks for simulating various kinds of item
|
|
types can also be done by adjusting the values of
|
|
.Va lbra
|
|
(default: '['),
|
|
.Va mark
|
|
(default: '*' for radio menus, 'X' for check menus)
|
|
and
|
|
.Va rbra
|
|
(default: ']') and declaring a reasonable
|
|
.Va checked
|
|
hook,
|
|
which should return TRUE for the
|
|
.Dq marked
|
|
state and FALSE for
|
|
.Dq unmarked .
|
|
The
|
|
.Va aux
|
|
field is not used internally, and is available for miscellaneous usage.
|
|
If an item has a
|
|
.Va fire
|
|
hook associated with it, it will also be called
|
|
whenever the item is "toggled" in some way and should return one of the
|
|
following codes:
|
|
.Bd -literal -offset 4n
|
|
#define DITEM_SUCCESS 0 /* Successful completion */
|
|
#define DITEM_FAILURE 1 /* Failed to "fire" */
|
|
.Ed
|
|
.Pp
|
|
The following flags are in the upper 16 bits of return status:
|
|
.Bd -literal -offset 4n
|
|
#define DITEM_LEAVE_MENU (1 << 16)
|
|
#define DITEM_REDRAW (1 << 17)
|
|
#define DITEM_RECREATE (1 << 18)
|
|
#define DITEM_RESTORE (1 << 19)
|
|
#define DITEM_CONTINUE (1 << 20)
|
|
.Ed
|
|
.Pp
|
|
Two special globals also exist for putting a dialog at any arbitrary
|
|
X,Y location (the early designers rather short-sightedly made no provisions
|
|
for this). If set to zero, the default centering behavior will be in
|
|
effect.
|
|
.Pp
|
|
Below is a short description of the various functions:
|
|
.Pp
|
|
.Fn draw_shadow
|
|
draws a shadow in curses window
|
|
.Va win
|
|
using the dimensions of
|
|
.Va x , y , width
|
|
and
|
|
.Va height .
|
|
.Pp
|
|
.Fn draw_box
|
|
draws a bordered box using the dimensions of
|
|
.Va x , y , width
|
|
and
|
|
.Va height .
|
|
The attributes from
|
|
.Va box
|
|
and
|
|
.Va border
|
|
are used, if specified, while painting the box and border regions of the
|
|
object.
|
|
.Pp
|
|
.Fn line_edit
|
|
invoke a simple line editor with an edit box of dimensions
|
|
.Va box_x , box_y
|
|
and
|
|
.Va box_width .
|
|
The field length is constrained by
|
|
.Va flen ,
|
|
starting at the
|
|
.Va first
|
|
character specified and
|
|
optionally displayed with character attributes
|
|
.Va attr .
|
|
The string being edited is stored in
|
|
.Va result .
|
|
Returns 0 on success, 1 on Cancel, and -1 on failure or ESC.
|
|
.Pp
|
|
.Fn strheight
|
|
returns the height of string in
|
|
.Va p ,
|
|
counting newlines.
|
|
.Pp
|
|
.Fn strwidth
|
|
returns the width of string in
|
|
.Va p ,
|
|
counting newlines.
|
|
.Pp
|
|
.Fn dialog_create_rc
|
|
dump dialog library settings into
|
|
.Pa filename
|
|
for later retrieval as defaults. Returns 0 on success, -1 on failure.
|
|
.Pp
|
|
.Fn dialog_yesno
|
|
display a text box using
|
|
.Va title
|
|
and
|
|
.Va prompt
|
|
strings of dimensions
|
|
.Va height
|
|
and
|
|
.Va width .
|
|
Also paint a pair of
|
|
.Em Yes
|
|
and
|
|
.Em \&No
|
|
buttons at the bottom.
|
|
The default selection is
|
|
.Em Yes .
|
|
If the
|
|
.Em Yes
|
|
button is chosen, return FALSE. If
|
|
.Em \&No ,
|
|
return TRUE.
|
|
.Pp
|
|
.Fn dialog_noyes
|
|
is the same as
|
|
.Fn dialog_yesno ,
|
|
except the default selection is
|
|
.Em \&No .
|
|
.Pp
|
|
.Fn dialog_prgbox
|
|
display a text box of dimensions
|
|
.Va height
|
|
and
|
|
.Va width
|
|
containing the output of command
|
|
.Va line .
|
|
If
|
|
.Va use_shell
|
|
is TRUE,
|
|
.Va line
|
|
is passed as an argument to
|
|
.Xr sh 1 ,
|
|
otherwise it is simply passed to
|
|
.Xr exec 3 .
|
|
If
|
|
.Va pause
|
|
is TRUE, a final confirmation requestor will be put up when execution
|
|
terminates. Returns 0 on success, -1 on failure.
|
|
.Pp
|
|
.Fn dialog_textbox
|
|
display a text box containing the contents of
|
|
.Va file
|
|
with dimensions of
|
|
.Va height
|
|
and
|
|
.Va width .
|
|
.Pp
|
|
.Fn dialog_menu
|
|
display a menu of dimensions
|
|
.Va height
|
|
and
|
|
.Va width
|
|
with an optional internal menu height of
|
|
.Va menu_height .
|
|
The
|
|
.Va cnt
|
|
and
|
|
.Va it
|
|
arguments are of particular importance since they,
|
|
together, determine which of the 2 available APIs to use. To use the
|
|
older and traditional interface,
|
|
.Va cnt
|
|
should be a positive
|
|
integer representing the number of string pointer pairs to find in
|
|
.Va it
|
|
(which should be of type
|
|
.Ft char "**" ) ,
|
|
the strings are
|
|
expected to be in prompt and title order for each item and the
|
|
.Va result
|
|
parameter is expected to point to an array where the
|
|
prompt string of the item selected will be copied. To use the newer
|
|
interface,
|
|
.Va cnt
|
|
should be a
|
|
.Va negative
|
|
integer representing the number of
|
|
.Va dialogMenuItem
|
|
structures pointed to by
|
|
.Va it
|
|
(which should be of type
|
|
.Vt dialogMenuItem "*" ) ,
|
|
one structure per item. In the new interface, the
|
|
.Va result
|
|
variable is used as a simple boolean (not a pointer) and should be NULL if
|
|
.Va it
|
|
only points to menu items and the default OK and Cancel buttons are desired. If
|
|
.Va result
|
|
is non-NULL, then
|
|
.Va it
|
|
is actually expected to point 2 locations
|
|
.Va past
|
|
the start of the menu item list.
|
|
.Va it
|
|
is then expected to
|
|
point to an item representing the Cancel button, from which the
|
|
.Va prompt
|
|
and
|
|
.Va fire
|
|
actions are used to override the default behavior, and
|
|
.Va it
|
|
to the same for the OK button.
|
|
.Pp
|
|
Using either API behavior, the
|
|
.Va ch
|
|
and
|
|
.Va sc
|
|
values may be passed in to preserve current
|
|
item selection and scroll position values across calls.
|
|
.Pp
|
|
.Fn dialog_checklist
|
|
display a menu of dimensions
|
|
.Va height
|
|
and
|
|
.Va width
|
|
with an
|
|
optional internal menu height of
|
|
.Va list_height .
|
|
The
|
|
.Va cnt
|
|
and
|
|
.Va it
|
|
arguments are of particular importance since they,
|
|
together, determine which of the 2 available APIs to use. To use the
|
|
older and traditional interface,
|
|
.Va cnt
|
|
should be a positive
|
|
integer representing the number of string pointer tuples to find in
|
|
.Va it
|
|
(which should be of type
|
|
.Ft "char **" ) ,
|
|
the strings are
|
|
expected to be in prompt, title and state ("on" or "off") order for
|
|
each item and the
|
|
.Va result
|
|
parameter is expected to point to an
|
|
array where the prompt string of the item(s) selected will be
|
|
copied. To use the newer interface,
|
|
.Va cnt
|
|
should be a
|
|
.Em negative
|
|
integer representing the number of
|
|
.Ft dialogMenuItem
|
|
structures pointed to by
|
|
.Va it
|
|
(which should be of type
|
|
.Ft "dialogMenuItem *" ) ,
|
|
one structure per item. In the new interface,
|
|
the
|
|
.Va result
|
|
variable is used as a simple boolean (not a pointer)
|
|
and should be NULL if
|
|
.Va it
|
|
only points to menu items and the default OK and Cancel
|
|
buttons are desired. If
|
|
.Va result
|
|
is non-NULL, then
|
|
.Va it
|
|
is actually expected to
|
|
point 2 locations
|
|
.Va past
|
|
the start of the menu item list.
|
|
.Va it
|
|
is then expected to point to an item representing the Cancel
|
|
button, from which the
|
|
.Va prompt
|
|
and
|
|
.Va fire
|
|
actions are used to override the default behavior, and
|
|
.Va it
|
|
to the same for the OK button.
|
|
.Pp
|
|
In the standard API model, the menu supports the selection of multiple items,
|
|
each of which is marked with an `X' character to denote selection. When
|
|
the OK button is selected, the prompt values for all items selected are
|
|
concatenated into the
|
|
.Va result
|
|
string.
|
|
.Pp
|
|
In the new API model, it is not actually necessary to preserve
|
|
"checklist" semantics at all since practically everything about how
|
|
each item is displayed or marked as "selected" is fully configurable.
|
|
You could have a single checklist menu that actually contained a group
|
|
of items with "radio" behavior, "checklist" behavior and standard menu
|
|
item behavior. The only reason to call
|
|
.Fn dialog_checklist
|
|
over
|
|
.Fn dialog_radiolist
|
|
in the new API model is to inherit the base
|
|
behavior, you're no longer constrained by it.
|
|
.Pp
|
|
Returns 0 on success, 1 on Cancel, and -1 on failure or ESC.
|
|
.Pp
|
|
.Fn dialog_radiolist
|
|
display a menu of dimensions
|
|
.Va height
|
|
and
|
|
.Va width
|
|
with an
|
|
optional internal menu height of
|
|
.Va list_height .
|
|
The
|
|
.Va cnt
|
|
and
|
|
.Va it
|
|
arguments are of particular importance since they,
|
|
together, determine which of the 2 available APIs to use. To use the
|
|
older and traditional interface,
|
|
.Va cnt
|
|
should be a positive
|
|
integer representing the number of string pointer tuples to find in
|
|
.Va it
|
|
(which should be of type
|
|
.Ft "char **" ) ,
|
|
the strings are
|
|
expected to be in prompt, title and state ("on" or "off") order for
|
|
each item and the
|
|
.Va result
|
|
parameter is expected to point to an
|
|
array where the prompt string of the item(s) selected will be
|
|
copied. To use the newer interface,
|
|
.Va cnt
|
|
should be a
|
|
.Dv negative
|
|
integer representing the number of
|
|
.Ft dialogMenuItem
|
|
structures pointed to by
|
|
.Va it
|
|
(which should be of type
|
|
.Ft "dialogMenuItem *" ,
|
|
one structure per item. In the new interface,
|
|
the
|
|
.Va result
|
|
variable is used as a simple boolean (not a pointer)
|
|
and should be NULL if
|
|
.Va it
|
|
only points to menu items and the default OK and Cancel
|
|
buttons are desired. If
|
|
.Va result
|
|
is non-NULL, then
|
|
.Va it
|
|
is actually expected to point 2 locations
|
|
.Va past
|
|
the start of the menu item list.
|
|
.Va it
|
|
is then expected to point to an item representing the Cancel
|
|
button, from which the
|
|
.Va prompt
|
|
and
|
|
.Va fire
|
|
actions are used to override the default behavior, and
|
|
.Va it
|
|
does the same for the traditional OK button.
|
|
.Pp
|
|
In the standard API model, the menu supports the selection of only one
|
|
of multiple items, the currently active item marked with an `*'
|
|
character to denote selection. When the OK button is selected, the
|
|
prompt value for this item is copied into the
|
|
.Va result
|
|
string.
|
|
.Pp
|
|
In the new API model, it is not actually necessary to preserve
|
|
"radio button" semantics at all since practically everything about how
|
|
each item is displayed or marked as "selected" is fully configurable.
|
|
You could have a single radio menu that actually contained a group
|
|
of items with "checklist" behavior, "radio" behavior and standard menu
|
|
item behavior. The only reason to call
|
|
.Fn dialog_radiolist
|
|
over
|
|
.Fn dialog_checklistlist
|
|
in the new API model is to inherit the base
|
|
behavior.
|
|
.Pp
|
|
Returns 0 on success, 1 on Cancel and -1 on failure or ESC.
|
|
.Pp
|
|
.Fn dialog_inputbox
|
|
displays a single-line text input field in a box displaying
|
|
.Va title
|
|
and
|
|
.Va prompt
|
|
of dimensions
|
|
.Va height
|
|
and
|
|
.Va width .
|
|
The field entered is stored in
|
|
.Va result .
|
|
.Pp
|
|
Returns 0 on success, -1 on failure or ESC.
|
|
.Pp
|
|
.Fn dialog_fselect
|
|
brings up a file selector dialog starting at
|
|
.Va dir
|
|
and showing only those file names
|
|
matching
|
|
.Va fmask .
|
|
.Pp
|
|
Returns filename selected or NULL.
|
|
.Pp
|
|
.Fn dialog_dselect
|
|
brings up a directory selector dialog starting at
|
|
.Va dir
|
|
and showing only those directory names
|
|
matching
|
|
.Va fmask .
|
|
.Pp
|
|
Returns directory name selected or NULL.
|
|
.Pp
|
|
.Fn dialog_notify
|
|
brings up a generic "hey, you!" notifier dialog containing
|
|
.Va msg .
|
|
.Pp
|
|
.Fn dialog_mesgbox
|
|
like a notifier dialog, but with more control over
|
|
.Va title ,
|
|
.Va prompt ,
|
|
.Va width
|
|
and
|
|
.Va height .
|
|
This object will also wait for user confirmation, unlike
|
|
.Fn dialog_notify .
|
|
.Pp
|
|
Returns 0 on success, -1 on failure.
|
|
.Pp
|
|
.Fn dialog_gauge
|
|
displays a horizontal bar-graph style gauge. A value of
|
|
.Em 100
|
|
for
|
|
.Em perc
|
|
constitutes a full gauge, a value of
|
|
.Em 0
|
|
an empty one.
|
|
.Pp
|
|
.Fn use_helpfile
|
|
for any menu supporting context sensitive help, invoke the text box
|
|
object on this file whenever the
|
|
.Em F1
|
|
key is pressed.
|
|
.Pp
|
|
.Fn use_helpline
|
|
displays this line of helpful text below any menu being displayed.
|
|
.Pp
|
|
.Fn get_helpline
|
|
get the current value of the helpful text line.
|
|
.Pp
|
|
.Fn dialog_clear_norefresh
|
|
clear the screen back to the dialog background color, but don't refresh the
|
|
contents just yet.
|
|
.Pp
|
|
.Fn dialog_clear
|
|
clear the screen back to the dialog background color immediately.
|
|
.Pp
|
|
.Fn dialog_update
|
|
do any pending screen refreshes now.
|
|
.Pp
|
|
.Fn init_dialog
|
|
initialize the dialog library (call this routine before any other dialog
|
|
API calls).
|
|
.Pp
|
|
.Fn end_dialog
|
|
shut down the dialog library (call this if you need to get back to sanity).
|
|
.Pp
|
|
.Fn dialog_ftree
|
|
shows a tree described by the data from the file
|
|
.Pa filename .
|
|
The data in the file should look like
|
|
.Xr find 1
|
|
output.
|
|
For the
|
|
.Xr find 1
|
|
output, the field separator
|
|
.Va FS
|
|
will be
|
|
.Dq \&/ .
|
|
If
|
|
.Va height
|
|
and
|
|
.Va width
|
|
are positive numbers, they set the absolute
|
|
size of the whole
|
|
.Fn dialog_ftree
|
|
box. If
|
|
.Va height
|
|
and
|
|
.Va width
|
|
are negative numbers, the size of the
|
|
.Fn dialog_ftree
|
|
box will be calculated automatically.
|
|
.Va menu_height
|
|
sets the height of the tree subwindow inside the
|
|
.Fn dialog_ftree
|
|
box and must be set.
|
|
.Va title
|
|
is shown centered on the upper border of the
|
|
.Fn dialog_ftree
|
|
box.
|
|
.Va prompt
|
|
is shown inside the
|
|
.Fn dialog_ftree
|
|
box above the tree subwindow and can contain
|
|
.Ql \e\&n
|
|
to split lines. One can navigate in
|
|
the tree by pressing UP/DOWN or
|
|
.Sm off
|
|
.So \&+ Sc \&/ So \&- Sc ,
|
|
.Sm on
|
|
PG_UP/PG_DOWN or
|
|
.Sm off
|
|
.So b Sc \&/SPACE
|
|
.Sm on
|
|
and
|
|
HOME/END or
|
|
.Sm off
|
|
.So g Sc \&/ So G Sc .
|
|
.Sm on
|
|
A leaf of the
|
|
tree is selected by pressing TAB or LEFT/RIGHT the OK
|
|
button and pressing ENTER. filename may contain data like
|
|
.Xr find 1
|
|
output, as well as like the output of
|
|
.Xr find 1
|
|
with
|
|
.Fl d
|
|
option. Some of the transient paths to the leaves of the tree may
|
|
be absent. Such data is corrected when fed from filename.
|
|
.Pp
|
|
The function returns 0 and a pointer to the selected leaf (to the path to
|
|
the leaf from the root of the tree) into result, if the OK button was
|
|
selected. The memory allocated for the building of the tree is freed on
|
|
exiting
|
|
.Fn dialog_ftree .
|
|
The memory for the result line should be freed
|
|
later manually, if necessary. If the Cancel button was selected, the
|
|
function returns 1. In case of exiting
|
|
.Fn dialog_ftree
|
|
on ESC, the function returns -1.
|
|
.Pp
|
|
.Fn dialog_tree
|
|
function returns the same results as
|
|
.Fn dialog_ftree .
|
|
If 0 is returned, result will contain a pointer from the array
|
|
.Va names .
|
|
.\" \fBdialog_tree\fR displays the tree very much like \fBdialog_ftree\fR does,
|
|
.\" with some exceptions. The source data for the building of the tree is an
|
|
.\" array \fBnames\fR of paths to the leaves (should be similar to \fBfind(1)\fR
|
|
.\" output) of the size \fBsize\fR. However, there is no correction of data like
|
|
.\" in \fBdialog_ftree\fR. Thus, to display a correct tree, the array must
|
|
.\" already contain correct data. Besides, in each session every unique use of
|
|
.\" \fBdialog_tree\fR is kept in memory, and later, when calling
|
|
.\" \fBdialog_tree\fR with the same \fBnames\fR, \fBsize\fR, \fBFS\fR,
|
|
.\" \fBheight\fR, \fBwidth\fR and \fBmenu_height\fR the position of the cursor
|
|
.\" in the tree subwindow is restored.
|
|
.Sh SEE ALSO
|
|
.Xr dialog 1 ,
|
|
.Xr ncurses 3
|
|
.Sh AUTHORS
|
|
The primary author would appear to be
|
|
.An Savio Lam Aq lam836@cs.cuhk.hk
|
|
with contributions over the years by
|
|
.An Stuart Herbert Aq S.Herbert@sheffield.ac.uk ,
|
|
.An Marc van Kempen Aq wmbfmk@urc.tue.nl ,
|
|
.An Andrey Chernov Aq ache@FreeBSD.org ,
|
|
.An Jordan Hubbard Aq jkh@FreeBSD.org
|
|
and
|
|
.An Anatoly A. Orehovsky Aq tolik@mpeks.tomsk.su .
|
|
.Sh HISTORY
|
|
These functions appeared in
|
|
.Fx 2.0
|
|
as the
|
|
.Xr dialog 1
|
|
command and were soon split into a separate library
|
|
and command by
|
|
.An Andrey Chernov .
|
|
.An Marc van Kempen implemented most of the
|
|
extra controls and objects,
|
|
.An Jordan Hubbard
|
|
added the dialogMenuItem renovations and this man page and
|
|
.An Anatoly A. Orehovsky
|
|
implemented
|
|
.Fn dialog_ftree
|
|
and
|
|
.Fn dialog_tree .
|
|
.Sh BUGS
|
|
Sure!
|