tixHList(n) Tix (4.0) tixHList(n)
_________________________________________________________________
NAME
tixHList - Create and manipulate Tix Hierarchial List
widgets
SYNOPSIS
tixHList pathName ?options?
SUPER-CLASS
None.
STANDARD OPTIONS
background borderWidth cursor foreground
font height highlightColor highlightThickness
relief selectBackground selectForeground
xScrollCommand yScrollCommand width
See the options(n) manual entry for details on the standard
options.
WIDGET-SPECIFIC OPTIONS
Name: browsecmd
Class: BrowseCmd
Switch: -browsecmd
Specifies a TCL command 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 TCL command 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.
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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 widget
command 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 widget
command below.
Name: indicatorCmd
Class: IndicatorCmd
Switch: -indicatorcmd
Specifies a TCL command to be executed when the user
manipulates the indicator of an HList entry. The
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tixHList(n) Tix (4.0) tixHList(n)-indicatorcmd is triggered when the user press or
releases the mouse button over the indicator in an
HList entry. By default the TCL command specified by
-indicatorcmd is executed with one additional argument,
the entryPath of the entry whose indicator has been
triggered. Additional information about the event can
be obtained by the tixEvent command.
Name: itemType
Class: ItemType
Switch: -itemtype
Specifies the default type of display item for this
HList widget. When you call the add and addchild widget
commands, 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
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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 TCL script to be called whenever the HList
widget changes its size. This command 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 tixHList command creates a new window (given by the
pathName 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 hierachy.
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
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tixHList(n) Tix (4.0) tixHList(n)
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 the DItem(n) manual page for a list of all display
items.
When a list entry is created by the add or addchild widget
commands, the type of its display item is determined by the
-itemtype option passed to these commands. If the -itemtype
is omitted, then by default the type specified by this HList
widget's -itemtype option is used.
WIDGET COMMAND
The tixHList command creates a new Tcl command whose name is
the same as the path name of the HList widget's window.
This command may be used to invoke various operations on the
widget. It has the following general form:
pathName option ?arg arg ...?
PathName is the name of the command, which is the same as
the HList widget's path name. Option and the args determine
the exact behavior of the command. The following commands
are possible for HList widgets:
pathName 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). This command 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.
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tixHList(n) Tix (4.0) tixHList(n)-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
widget command. 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 window. If
this option is not specified, then by default the
type specified by this HList widget's -itemtype
option is used.
-state
Specifies whether this entry can be selected or
invoked by the user. Must be either normal or
disabled.
The add widget command 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 the DItem(n) manual page for a
list of the configuration options for each of the display
item types.
pathName 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.1, foo.2, ... etc. This command
returns the entryPath of the newly created list entry.
option can be any option for the add widget command.
pathName anchor set entryPath
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tixHList(n) Tix (4.0) tixHList(n)
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.
pathName anchor clear
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.
pathName cget option
Returns the current value of the configuration option
given by option. Option may have any of the values
accepted by the tixHList command.
pathName column width 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:
pathName column width 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.
pathName column width col width
width must be in a form accepted by
Tk_GetPixels(3).
pathName column width 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.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the
widget. If no option is specified, returns a list
describing all of the available options for pathName
(see Tk_ConfigureInfo for information on the format of
this list). If option is specified with no value, then
the command 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 command modifies the
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given widget option(s) to have the given value(s); in
this case the command returns an empty string. Option
may have any of the values accepted by the tixHList
command.
pathName 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.
pathName dragsite set 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.
pathName dragsite clear
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.
pathName dropsite set entryPath
Sets the dropsite to the list entry identified by
entryPath. The dropsite is used to indicate the target
of a grag-and-drop action. Currently drag-and-drop
functionality has not been implemented in Tix yet.
pathName dropsite clear
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.
pathName entrycget entryPath option
Returns the current value of the configuration option
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tixHList(n) Tix (4.0) tixHList(n)
given by option for the entry indentfied by entryPath.
Option may have any of the values accepted by the add
widget command.
pathName entryconfigure entryPath ?option? ?value option value
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_ConfigureInfo
for information on the format of this list.) If option
is specified with no value, then the command 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 command
modifies the given option(s) to have the given
value(s); in this case the command returns an empty
string. Option may have any of the values accepted by
the add or addchild widget command. The exact set of
options depends on the value of the -itemtype option
passed to the the add or addchild widget command when
this list entry is created.
pathName 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 command must be a
valid integer. 0 indicates the first column, 1 the
second column, ... and so on. This command supports the
following options:
pathName 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.
...?
pathName 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_ConfigureInfo(3) for
information on the format of this list.) If option
is specified with no value, then the command
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
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specified, then the command modifies the given
option(s) to have the given value(s); in this case
the command returns an empty string. Option may
have any of the values accepted by the header
create widget command. The exact set of options
depends on the value of the -itemtype option
passed to the the header create widget command
when this display item was created.
...?
pathName header create col ?-itemtype type? ?option value
Creates a new display item as the header for the
col-th column. 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
Specifies the border width of this header
item.
-headerbackground
Specifies the background color of this header
item.
-relief
Specifies the relief type of the border of
this header item.
pathName header delete col
Deletes the header display item for the col-th
column.
pathName header exists col
Return true if an header display item exists for
the col-th column; return false otherwise.
pathName header size entryPath
If an header display item exists for the col-th
column , returns its size in a two element list of
the form {width height}; returns an error if the
header display item does not exist.
pathName hide option ?entryPath?
Makes some of entries invisible invisible without
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tixHList(n) Tix (4.0) tixHList(n)
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.
pathName 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 indicator whether a directory is opened or
closed. option can be one of the following:
pathName 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.
option value ...?
pathName indicator configure entryPath ?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_ConfigureInfo(3) for information on the format
of this list). If option is specified with no
value, then the command 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 command
modifies the given option(s) to have the given
value(s); in this case the command returns an
empty string. Option may have any of the values
accepted by the indicator create widget command.
The exact set of options depends on the value of
the -itemtype option passed to the the indicator
create widget command when this display item was
created.
value ...?
pathName indicator create entryPath ?-itemtype type? ?option
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
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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.
pathName indicator delete entryPath
Deletes the indicator display item for the entry
given by entryPath.
pathName indicator exists entryPath
Return true if an indicator display item exists
for the entry given by entryPath; return false
otherwise.
pathName 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.
pathName info option arg ...
Query information about the HList widget. option can be
one of the following:
pathName 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.
pathName info bbox 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.
pathName info children ?entryPath?
If entrpyPath is given, returns a list of the
entryPath's of its children entries. Otherwise
returns a list of the toplevel entryPath's.
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pathName info data ?entryPath?
Returns the data associated with entryPath.
pathName 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.
pathName 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.
pathName info exists entryPath
Returns a boolean value indicating whether the
list entry entrpyPath exists.
pathName info hidden entryPath
Returns a boolean value indicating whether the
list entry entrpyPath is hidden or not.
pathName 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.
pathName info parent entryPath
Returns the name of the parent of the list entry
identified by entrpyPath. If entrpyPath is a
toplevel list entry, returns the empty string.
pathName 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.
pathName info selection
Returns a list of selected entries in the HList
widget. If no entries are selectd, returns an
empty string.
pathName 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:
pathName item cget 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.
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tixHList(n) Tix (4.0) tixHList(n)
value ...?
pathName item configure entryPath col ?option? ?value option
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_ConfigureInfo(3) for information on the format
of this list). If option is specified with no
value, then the command 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 command
modifies the given option(s) to have the given
value(s); in this case the command returns an
empty string. Option may have any of the values
accepted by the item create widget command. The
exact set of options depends on the value of the
-itemtype option passed to the the item create
widget command when this display item was created.
value ...?
pathName item create entryPath col ?-itemtype type? ?option
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.
pathName item delete entryPath col
Deletes the display item at the column designated
by col of the entry specified by entryPath.
pathName item exists 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.
pathName nearest y
Given a y-coordinate within the HList window, this
command returns the entryPath of the (visible) HList
element nearest to that y-coordinate.
pathName see entryPath
Adjust the view in the HList so that the entry given by
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entryPath is visible. If the entry is already visible
then the command 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.
pathName selection option arg ...
This command is used to adjust the selection within a
HList widget. It has several forms, depending on
option:
pathName selection clear ?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 entries outside that range.
pathName selection get
This is an alias for the info selection widget
command. ,
pathName selection includes entryPath
Returns 1 if the list entry indicated by entryPath
is currently selected; returns 0 otherwise.
pathName selection set 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.
pathName show option ?entryPath?
Show the entries that are hidden by the hide command,
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.
pathName xview args
This command 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:
pathName xview
Returns a list containing two elements. Each
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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 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.
pathName 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.
pathName 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.
pathName xview scroll number what
This command 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.
pathName yview ?args?
This command 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:
pathName 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.
pathName yview entryPath
Adjusts the view in the window so that the list
entry given by entryPath is displayed at the top
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of the window.
pathName 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.
pathName yview scroll number what
This command 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
procedure will be called with one parameter, the
entryPath of the highlighted entry. Only one entry can
be highlighted at a time. The -command procedure 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
procedure will be called with one parameter indicating
the highlighted list entry. The -command procedure 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 procedure will be called with an undefined
parameter. It is the responsibility of the -browsecmd
procedure to find out the exact highlighted selection
in the HList. The -command procedure 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,
Page 17 (printed 12/22/98)
tixHList(n) Tix (4.0) tixHList(n)
the -browsecmd procedure will be called with an
undefined parameter. It is the responsibility of the
-browsecmd procedure to find out the exact highlighted
selection in the HList. The -command procedure 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:
tixHList .h -separator "/" -browsecmd browse -selectmode single \
-itemtype text
.h add / -text /
.h add /home -text /home
.h add /home/ioi -text /home/ioi
.h add /home/foo -text /home/foo
.h add /usr -text /usr
.h add /usr/lib -text /usr/lib
pack .h
proc browse {file} {
puts "$file browsed"
}
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
command and the add, addchild, entrycget and entryconfigure
commands. Whenever multiple columns exist, the programmer
should use ONLY the item command 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
Tix(n), Hierarchical Listbox
Page 18 (printed 12/22/98)
