HList(3pm) User Contributed Perl Documentation HList(3pm)
NAME
Tk::HList - Create and manipulate Tix Hierarchial List widgets
SYNOPSIS
$hlist = $parent->HList(?options?);
STANDARD OPTIONS
-background -borderwidth -cursor -exportselection
-foreground -font -height -highlightcolor
-highlightthickness -relief -selectbackground
-selectforeground -xscrollcommand -yscrollcommand -width
See Tk::options for details of the standard options.
WIDGET-SPECIFIC OPTIONS
Name: browsecmd
Class: BrowseCmd
Switch: -browsecmd
Specifies a perl/Tk callback to be executed when the user browses
through the entries in the HList widget.
Name: columns
Class: Columns
Switch: -columns
Specifies the number of columns in this HList widget. This option
can only be set during the creation of the HList widget and cannot
be changed subsequently.
Name: command
Class: Command
Switch: -command
Specifies the perl/Tk callback to be executed when the user invokes
a list entry in the HList widget. Normally the user invokes a list
entry by double-clicking it or pressing the Return key.
Name: drawBranch
Class: DrawBranch
Switch: -drawbranch
A Boolean value to specify whether branch line should be drawn to
connect list entries to their parents.
Name: foreground
Class: Foreground
Switch: -foreground
Alias: -fg
[OBSOLETE] Specifies the default foreground color for the list
entries.
Name: gap
Class: Gap
Switch: -gap
[OBSOLETE] The default distance between the bitmap/image and the
text in list entries.
Name: header
Class: Header
Switch: -header
A Boolean value specifying whether headers should be displayed for
this HList widget (see the header method below).
Name: height
Class: Height
Switch: -height
Specifies the desired height for the window in number of characters.
Name: indent
Class: Indent
Switch: -indent
Specifies the amount of horizontal indentation between a list entry
and its children. Must be a valid screen distance value.
Name: indicator
Class: Indicator
Switch: -indicator
Specifies whether the indicators should be displayed inside the
HList widget. See the indicator method below.
Name: indicatorCmd
Class: IndicatorCmd
Switch: -indicatorcmd
Specifies a perl/Tk callback to be executed when the user
manipulates the indicator of an HList entry. The -indicatorcmd is
triggered when the user press or releases the mouse button over the
indicator in an HList entry. By default the perl/Tk callback
specified by -indicatorcmd is executed with two additional
arguments, the entryPath of the entry whose indicator has been
triggered and additional information about the event. The
additional information is one of the following strings: <Arm>,
<Disarm>, and <Activate>.
Name: itemType
Class: ItemType
Switch: -itemtype
Specifies the default type of display item for this HList widget.
When you call the itemCreate, add and addchild methods, display
items of this type will be created if the -itemtype option is not
specified .
Name: padX
Class: Pad
Switch: -padx
[OBSOLETE] The default horizontal padding for list entries.
Name: padY
Class: Pad
Switch: -padx
[OBSOLETE] The default vertical padding for list entries.
Name: selectBackground
Class: SelectBackground
Switch: -selectbackground
Specifies the background color for the selected list entries.
Name: selectBorderWidth
Class: BorderWidth
Switch: -selectborderwidth
Specifies a non-negative value indicating the width of the 3-D
border to draw around selected items. The value may have any of the
forms acceptable to Tk_GetPixels.
Name: selectForeground
Class: SelectForeground
Switch: -selectforeground
Specifies the foreground color for the selected list entries.
Name: selectMode
Class: SelectMode
Switch: -selectmode
Specifies one of several styles for manipulating the selection. The
value of the option may be arbitrary, but the default bindings
expect it to be either single, browse, multiple, or extended; the
default value is single.
Name: sizeCmd
Class: SizeCmd
Switch: -sizecmd
Specifies a perl/Tk callback to be called whenever the HList widget
changes its size. This method can be useful to implement ``user
scroll bars when needed'' features.
Name: separator
Class: Separator
Switch: -separator
Specifies the character to used as the separator character when
intepreting the path-names of list entries. By default the character
"." is used.
Name: width
Class: Width
Switch: -width
Specifies the desired width for the window in characters.
DESCRIPTION
The HList method creates a new window (given by the $widget argument)
and makes it into a HList widget. Additional options, described above,
may be specified on the command line or in the option database to
configure aspects of the HList widget such as its cursor and relief.
The HList widget can be used to display any data that have a
hierarchical structure, for example, file system directory trees. The
list entries are indented and connected by branch lines according to
their places in the hierarchy.
Each list entry is identified by an entryPath. The entryPath is a
sequence of entry names separated by the separator charactor (specified
by the -separator option). An entry name can be any string that does not
contain the separator charactor, or it can be the a string that contains
only one separator charactor.
For example, when "." is used as the separator charactor,
"one.two.three" is the entryPath for a list entry whose parent is
"one.two", whose parent is "one", which is a toplevel entry (has no
parents).
Another examples: ".two.three" is the entryPath for a list entry whose
parent is ".two", whose parent is ".", which is a toplevel entry.
DISPLAY ITEMS
Each list entry in an HList widget is associated with a display item.
The display item determines what visual information should be displayed
for this list entry. Please see Tk::DItem for a list of all display
items. When a list entry is created by the itemCreate, add or addchild
widget methods, the type of its display item is determined by the
-itemtype option passed to these methods. If the -itemtype is omitted,
then by default the type specified by this HList widget's -itemtype
option is used.
WIDGET METHODS
The HList method creates a widget object. This object supports the
configure and cget methods described in Tk::options which can be used to
enquire and modify the options described above. The widget also
inherits all the methods provided by the generic Tk::Widget class.
The following additional methods are available HList widgets:
$hlist->add($entryPath ?,option=>value, ...?)
Creates a new list entry with the pathname $entryPath. A list entry
must be created after its parent is created (unless this entry is a
top-level entry, which has no parent). See also "BUGS" below. This
method returns the entryPath of the newly created list entry. The
following configuration options can be given to configure the list
entry:
-at => position
Insert the new list at the position given by position.
position must be a valid integer. The position 0 indicates
the first position, 1 indicates the second position, and so
on.
-after => afterWhich
Insert the new list entry after the entry identified by
afterWhich. afterWhich must be a valid list entry and it
mush have the same parent as the new list entry
-before => beforeWhich
Insert the new list entry before the entry identified by
beforeWhich. beforeWhich must be a valid list entry and it
mush have the same parent as the new list entry
-data => string
Specifies a string to associate with this list entry. This
string can be queried by the info method. The application
programmer can use the -data option to associate the list
entry with the data it represents.
-itemtype => type
Specifies the type of display item to be display for the new
list entry. type must be a valid display item type.
Currently the available display item types are imagetext,
text, and $widget. If this option is not specified, then by
default the type specified by this HList widget's -itemtype
option is used.
-state => state
Specifies whether this entry can be selected or invoked by
the user. Must be either normal or disabled.
The add method accepts additional configuration options to configure
the display item associated with this list entry. The set of
additional configuration options depends on the type of the display
item given by the -itemtype option. Please see Tk::DItem for a list
of the configuration options for each of the display item types.
$hlist->addchild($parentPath, ?option, value, ..., ?)
Adds a new child entry to the children list of the list entry
identified by $parentPath. Or, if $parentPath is set to be the empty
string, then creates a new toplevel entry. The name of the new list
entry will be a unique name automatically generated by the HList
widget. Usually if $parentPath is foo, then the entryPath of the new
entry will be foo.0, foo.1, ... etc. This method returns the
entryPath of the newly created list entry. option can be any option
for the add method. See also "BUGS" below.
$hlist->anchorSet($entryPath)
Sets the anchor to the list entry identified by $entryPath. The
anchor is the end of the selection that is fixed while the user is
dragging out a selection with the mouse.
$hlist->anchorClear
Removes the anchor, if any, from this HList widget. This only
removes the surrounding highlights of the anchor entry and does not
affect its selection status.
$hlist->columnWidth($col?, -char?, ?width?)
Querys or sets the width of a the column $col in the HList widget.
The value of $col is zero-based: 0 stands for the first column, 1
stands for the second, and so on. If no further parameters are
given, returns the current width of this column (in number of
pixels). Additional parameters can be given to set the width of this
column:
$hlist->columnWidth($col, '')
An empty string indicates that the width of the column
should be just wide enough to display the widest element in
this column. In this case, the width of this column may
change as a result of the elements in this column changing
their sizes.
$hlist->columnWidth($col, width)
width must be in a form accepted by Tk_GetPixels.
$hlist->columnWidth($col, -char, nChars)
The width is set to be the average width occupied by nChars
number of characters of the font specified by the -font
option of this HList widget.
$hlist->delete(option, $entryPath)
Delete one or more list entries. option may be one of the following:
all Delete all entries in the HList. In this case the $entryPath
does not need to be specified.
entry Delete the entry specified by $entryPath and all its
offsprings, if any.
offsprings
Delete all the offsprings, if any, of the entry specified by
$entryPath. However, $entryPath itself is not deleted.
siblings
Delete all the list entries that share the same parent with
the entry specified by $entryPath. However, $entryPath
itself is not deleted.
$hlist->dragsiteSet($entryPath)
Sets the dragsite to the list entry identified by $entryPath. The
dragsite is used to indicate the source of a drag-and-drop action.
Currently drag-and-drop functionality has not been implemented in
Tix yet.
$hlist->dragsiteClear
Remove the dragsite, if any, from the this HList widget. This only
removes the surrounding highlights of the dragsite entry and does
not affect its selection status.
$hlist->dropsiteSet($entryPath)
Sets the dropsite to the list entry identified by $entryPath. The
dropsite is used to indicate the target of a drag-and-drop action.
Currently drag-and-drop functionality has not been implemented in
Tix yet.
$hlist->dropsiteClear
Remove the dropsite, if any, from the this HList widget. This only
removes the surrounding highlights of the dropsite entry and does
not affect its selection status.
$hlist->entrycget($entryPath, option)
Returns the current value of the configuration option given by
option for the entry indentfied by $entryPath. Option may have any
of the values accepted by the add method.
$hlist->entryconfigure($entryPath ?,option?, ?value=>option, ...?)
Query or modify the configuration options of the list entry
indentfied by $entryPath. If no option is specified, returns a list
describing all of the available options for $entryPath (see
Tk::options for information on the format of this list.) If option
is specified with no value, then the method returns a list
describing the one named option (this list will be identical to the
corresponding sublist of the value returned if no option is
specified). If one or more option-value pairs are specified, then
the method modifies the given option(s) to have the given value(s);
in this case the method returns an empty string. Option may have
any of the values accepted by the add or addchild method. The exact
set of options depends on the value of the -itemtype option passed
to the the add or addchild method when this list entry is created.
$hlist->header(option, $col ?,args, ...?)
Manipulates the header items of this HList widget. If the -header
option of this HList widget is set to true, then a header item is
displayed at the top of each column. The $col argument for this
method must be a valid integer. 0 indicates the first column, 1 the
second column, ... and so on. This method supports the following
options:
$hlist->header(cget, $col, option)
If the $col-th column has a header display item, returns the
value of the specified option of the header item. If the
header doesn't exist, returns an error.
$hlist->header(configure, $col, ?option?, ?value, option, value,
...?)
Query or modify the configuration options of the header
display item of the $col-th column. The header item must
exist, or an error will result. If no option is specified,
returns a list describing all of the available options for
the header display item (see Tk::options for information on
the format of this list.) If option is specified with no
value, then the method returns a list describing the one
named option (this list will be identical to the
corresponding sublist of the value returned if no option is
specified). If one or more option-value pairs are specified,
then the method modifies the given option(s) to have the
given value(s); in this case the method returns an empty
string. Option may have any of the values accepted by the
header create method. The exact set of options depends on
the value of the -itemtype option passed to the the header
create method when this display item was created.
$hlist->header(create, $col, ?-itemtype type? ?option value ...?
Creates a new display item as the header for the $col-th
column. See also "BUGS" below. If an header display item
already exists for this column, it will be replaced by the
new item. An optional parameter -itemtype can be used to
specify what type of display item should be created. If the
-itemtype is not given, then by default the type specified
by this HList widget's -itemtype option is used. Additional
parameters, in option-value pairs, can be passed to
configure the appearance of the display item. Each option-
value pair must be a valid option for this type of display
item or one of the following:
-borderwidth => color
Specifies the border width of this header item.
-headerbackground => color
Specifies the background color of this header
item.
-relief => type
Specifies the relief type of the border of this
header item.
$hlist->header(delete, $col)
Deletes the header display item for the $col-th column.
$hlist->header(exists, $col)
Return true if an header display item exists for the $col-th
column; return false otherwise.
$hlist->header(size, $col)
If an header display item exists for the $col-th column ,
returns its size in pixels in a two element list (width,
height); returns an error if the header display item does
not exist.
$hlist->hide(option ?,$entryPath?)
Makes some of entries invisible without deleting them. Option can
be one of the following:
entry Hides the list entry identified by $entryPath.
Currently only the entry option is supported. Other options will be
added in the next release.
$hlist->indicator(option, $entryPath, ?args, ...?)
Manipulates the indicator on the list entries. An indicator is
usually a small display item (such as an image) that is displayed to
the left to an entry to indicate the status of the entry. For
example, it may be used to indicate whether a directory is opened or
closed. Option can be one of the following:
$hlist->indicator(cget, $entryPath, option)
If the list entry given by $entryPath has an indicator,
returns the value of the specified option of the indicator.
If the indicator doesn't exist, returns an error.
$hlist->indicator(configure, $entryPath, ?option?, ?value, option,
value, ...?)
Query or modify the configuration options of the indicator
display item of the entry specified by $entryPath. The
indicator item must exist, or an error will result. If no
option is specified, returns a list describing all of the
available options for the indicator display item (see
Tk::options for information on the format of this list). If
option is specified with no value, then the method returns a
list describing the one named option (this list will be
identical to the corresponding sublist of the value returned
if no option is specified). If one or more option-value
pairs are specified, then the method modifies the given
option(s) to have the given value(s); in this case the
method returns an empty string. Option may have any of the
values accepted by the indicator create method. The exact
set of options depends on the value of the -itemtype option
passed to the the indicator create method when this display
item was created.
$hlist->indicator(create, $entryPath, ?, -itemtype type? ?option
value ...?)
Creates a new display item as the indicator for the entry
specified by $entryPath. If an indicator display item
already exists for this entry, it will be replaced by the
new item. An optional parameter -itemtype can be used to
specify what type of display item should be created. If the
-itemtype is not given, then by default the type specified
by this HList widget's -itemtype option is used. Additional
parameters, in option-value pairs, can be passed to
configure the appearance of the display item. Each option-
value pair must be a valid option for this type of display
item.
$hlist->indicator(delete, $entryPath)
Deletes the indicator display item for the entry given by
$entryPath.
$hlist->indicator(exists, $entryPath)
Return true if an indicator display item exists for the
entry given by $entryPath; return false otherwise.
$hlist->indicator(size, $entryPath)
If an indicator display item exists for the entry given by
$entryPath, returns its size in a two element list of the
form {width height}; returns an error if the indicator
display item does not exist.
$hlist->info(option, arg, ...)
Query information about the HList widget. option can be one of the
following:
$hlist->info(anchor)
Returns the entryPath of the current anchor, if any, of the
HList widget. If the anchor is not set, returns the empty
string.
$hlist->infoBbox($entryPath)
Returns a list of four numbers describing the visible
bounding box of the entry given $entryPath. The first two
elements of the list give the x and y coordinates of the
upper-left corner of the screen area covered by the entry
(specified in pixels relative to the widget) and the last
two elements give the lower-right corner of the area, in
pixels. If no part of the entry given by index is visible on
the screen then the result is an empty string; if the entry
is partially visible, the result gives the only the visible
area of the entry.
$hlist->info(children ?,$entryPath?)
If $entryPath is given, returns a list of the entryPath's of
its children entries. Otherwise returns a list of the
toplevel entryPath's.
$hlist->info(data ?,$entryPath?)
Returns the data associated with $entryPath.
$hlist->info(dragsite)
Returns the entryPath of the current dragsite, if any, of
the HList widget. If the dragsite is not set, returns the
empty string.
$hlist->info(dropsite)
Returns the entryPath of the current dropsite, if any, of
the HList widget. If the dropsite is not set, returns the
empty string.
$hlist->info(exists, $entryPath)
Returns a boolean value indicating whether the list entry
$entryPath exists.
$hlist->info(hidden, $entryPath)
Returns a boolean value indicating whether the list entry
$entryPath is hidden or not.
$hlist->info(next, $entryPath)
Returns the entryPath of the list entry, if any, immediately
below this list entry. If this entry is already at the
bottom of the HList widget, returns an empty string.
$hlist->info(parent, $entryPath)
Returns the name of the parent of the list entry identified
by $entryPath. If entryPath is a toplevel list entry,
returns the empty string.
$hlist->info(prev, $entryPath)
Returns the entryPath of the list entry, if any, immediately
above this list entry. If this entry is already at the top
of the HList widget, returns an empty string.
$hlist->info(selection)
Returns a list of selected entries in the HList widget. In
scalar context, returns an anonymous list of the selected
entries. If no entries are selected, undef is returned in
scalar context, and an empty list otherwise.
$hlist->item(option, ?args, ...?)
Creates and configures the display items at individual columns the
entries. The form of additional of arguments depends on the choice
of option:
$hlist->itemCget($entryPath, $col, option)
Returns the current value of the configure option of the
display item at the column designated by $col of the entry
specified by $entryPath.
$hlist->itemConfigure($entryPath, $col ?,option?, ?value, option,
value, ...?)
Query or modify the configuration options of the display
item at the column designated by $col of the entry specified
by $entryPath. If no option is specified, returns a list
describing all of the available options for $entryPath (see
Tk::options for information on the format of this list). If
option is specified with no value, then the method returns a
list describing the one named option (this list will be
identical to the corresponding sublist of the value returned
if no option is specified). If one or more option-value
pairs are specified, then the method modifies the given
option(s) to have the given value(s); in this case the
method returns an empty string. Option may have any of the
values accepted by the item create method. The exact set of
options depends on the value of the -itemtype option passed
to the the item create method when this display item was
created.
$hlist->itemCreate($entryPath, $col ?,-itemtype=>type? ?,option
value ...?)
Creates a new display item at the column designated by $col
of the entry specified by $entryPath. An optional parameter
-itemtype can be used to specify what type of display items
should be created. If the -itemtype is not specified, then
by default the type specified by this HList widget's
-itemtype option is used. Additional parameters, in option-
value pairs, can be passed to configure the appearance of
the display item. Each option- value pair must be a valid
option for this type of display item.
$hlist->itemDelete($entryPath, $col)
Deletes the display item at the column designated by $col of
the entry specified by $entryPath.
$hlist->itemExists($entryPath, $col)
Returns true if there is a display item at the column
designated by $col of the entry specified by $entryPath;
returns false otherwise.
$hlist->nearest(y)
$hlist->nearest(y) Given a y-coordinate within the HList window,
this method returns the entryPath of the (visible) HList element
nearest to that y-coordinate.
$hlist->see($entryPath)
Adjust the view in the HList so that the entry given by $entryPath
is visible. If the entry is already visible then the method has no
effect; if the entry is near one edge of the window then the HList
scrolls to bring the element into view at the edge; otherwise the
HList widget scrolls to center the entry.
$hlist->selection(option, arg, ...)
$hlist->selectionOption(arg, ...)
This method is used to adjust the selection within a HList widget.
It has several forms, depending on option:
$hlist->selectionClear(?from?, ?to?)
When no extra arguments are given, deselects all of the list
entrie(s) in this HList widget. When only from is given,
only the list entry identified by from is deselected. When
both from and to are given, deselects all of the list
entrie(s) between between from and to, inclusive, without
affecting the selection state of elements outside that
range.
$hlist->selectionGet
This is an alias for the infoSelection method.
$hlist->selectionIncludes($entryPath)
Returns 1 if the list entry indicated by $entryPath is
currently selected; returns 0 otherwise.
$hlist->selectionSet(from?, to?)
Selects all of the list entrie(s) between between from and
to, inclusive, without affecting the selection state of
entries outside that range. When only from is given, only
the list entry identified by from is selected.
$hlist->show(option ?,$entryPath?)
Show the entries that are hidden by the hide method, option can be
one of the following:
entry Shows the list entry identified by $entryPath.
Currently only the entry option is supported. Other options will be
added in future releases.
$hlist->xview(args)
This method is used to query and change the horizontal position of
the information in the widget's window. It can take any of the
following forms:
$hlist->xview
Returns a list containing two elements. Each element is a
real fraction between 0 and 1; together they describe the
horizontal span that is visible in the window. For example,
if the first element is .2 and the second element is .6, 20%
of the HList entry is off-screen to the left, the middle 40%
is visible in the window, and 40% of the entry is off-screen
to the right. These are the same values passed to scrollbars
via the -xscrollcommand option.
$hlist->xview($entryPath)
Adjusts the view in the window so that the list entry
identified by $entryPath is aligned to the left edge of the
window.
$hlist->xview(moveto => fraction)
Adjusts the view in the window so that fraction of the total
width of the HList is off-screen to the left. fraction must
be a fraction between 0 and 1.
$hlist->xview(scroll => number, what)
This method shifts the view in the window left or right
according to number and what. Number must be an integer.
What must be either units or pages or an abbreviation of one
of these. If what is units, the view adjusts left or right
by number character units (the width of the 0 character) on
the display; if it is pages then the view adjusts by number
screenfuls. If number is negative then characters farther to
the left become visible; if it is positive then characters
farther to the right become visible.
$hlist->yview(?args?)
This method is used to query and change the vertical position of the
entries in the widget's window. It can take any of the following
forms:
$hlist->yview
Returns a list containing two elements, both of which are
real fractions between 0 and 1. The first element gives the
position of the list element at the top of the window,
relative to the HList as a whole (0.5 means it is halfway
through the HList, for example). The second element gives
the position of the list entry just after the last one in
the window, relative to the HList as a whole. These are the
same values passed to scrollbars via the -yscrollcommand
option.
$hlist->yview($entryPath)
Adjusts the view in the window so that the list entry given
by $entryPath is displayed at the top of the window.
$hlist->yview(moveto => fraction)
Adjusts the view in the window so that the list entry given
by fraction appears at the top of the window. Fraction is a
fraction between 0 and 1; 0 indicates the first entry in the
HList, 0.33 indicates the entry one-third the way through
the HList, and so on.
$hlist->yview(scroll => number, what)
This method adjust the view in the window up or down
according to number and what. Number must be an integer.
What must be either units or pages. If what is units, the
view adjusts up or down by number lines; if it is pages then
the view adjusts by number screenfuls. If number is
negative then earlier entries become visible; if it is
positive then later entries become visible.
BINDINGS
[1] If the -selectmode is "browse", when the user drags the mouse
pointer over the list entries, the entry under the pointer will be
highlighted and the -browsecmd callback will be called with one
parameter, the entryPath of the highlighted entry. Only one entry
can be highlighted at a time. The -command callback will be called
when the user double-clicks on a list entry.
[2] If the -selectmode is "single", the entries will only be highlighted
by mouse <ButtonRelease-1> events. When a new list entry is
highlighted, the -browsecmd callback will be called with one
parameter indicating the highlighted list entry. The -command
callback will be called when the user double-clicks on a list entry.
[3] If the -selectmode is "multiple", when the user drags the mouse
pointer over the list entries, all the entries under the pointer
will be highlighted. However, only a contiguous region of list
entries can be selected. When the highlighted area is changed, the
-browsecmd callback will be called with an undefined parameter. It
is the responsibility of the -browsecmd callback to find out the
exact highlighted selection in the HList. The -command callback will
be called when the user double-clicks on a list entry.
[4] If the -selectmode is "extended", when the user drags the mouse
pointer over the list entries, all the entries under the pointer
will be highlighted. The user can also make disjointed selections
using <Control-ButtonPress-1>. When the highlighted area is changed,
the -browsecmd callback will be called with an undefined parameter.
It is the responsibility of the -browsecmd callback to find out the
exact highlighted selection in the HList. The -command callback will
be called when the user double-clicks on a list entry.
[5] Arrow key bindings: <Up> arrow key moves the anchor point to the
item right on top of the current anchor item. <Down> arrow key moves
the anchor point to the item right below the current anchor item.
<Left> arrow key moves the anchor to the parent item of the current
anchor item. <Right> moves the anchor to the first child of the
current anchor item. If the current anchor item does not have any
children, moves the anchor to the item right below the current
anchor item.
EXAMPLE
This example demonstrates how to use an HList to store a file directory
structure and respond to the user's browse events:
use strict;
use Tk;
use Tk::Label;
use Tk::HList;
my $mw = MainWindow->new();
my $label = $mw->Label(-width=>15);
my $hlist = $mw->HList(
-itemtype => 'text',
-separator => '/',
-selectmode => 'single',
-browsecmd => sub {
my $file = shift;
$label->configure(-text=>$file);
}
);
foreach ( qw(/ /home /home/ioi /home/foo /usr /usr/lib) ) {
$hlist->add($_, -text=>$_);
}
$hlist->pack;
$label->pack;
MainLoop;
BUGS
The fact that the display item at column 0 is implicitly associated with
the whole entry is probably a design bug. This was done for backward
compatibility purposes. The result is that there is a large overlap
between the item method and the add, addchild, entrycget and
entryconfigure methods. Whenever multiple columns exist, the programmer
should use ONLY the item method to create and configure the display
items in each column; the add, addchild, entrycget and entryconfigure
should be used ONLY to create and configure entries.
KEYWORDS
Hierarchical Listbox
SEE ALSO
Tk::DItem
perl v5.40.1 2025-04-13 HList(3pm)
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