iwidgets::scrolledlistbox - Create and manipulate scrolled listbox widgets
Contents
Associated Methods
activatebboxcurselectiondeletegetindexinsertitemconfigurenearestscanseeselectionsizexviewyview
See the "listbox" manual entry for details on the associated methods.
Associated Options
selectModelistvariable
See the "listbox" widget manual entry for details on the above associated options.
activeReliefelementBorderwidthjumptroughColor
See the "scrollbar" widget manual entry for details on the above associated options.
Components
Name: listbox
Class: listbox
The listbox component is the listbox widget. See the "listbox" widget manual entry for details on
the listbox component item.
Name: horizsb
Class: Scrollbar
The horizsb component is the horizontal scroll bar. See the "scrollbar" widget manual entry for
details on the horizsb component item.
Name: vertsb
Class: Scrollbar
The vertsb component is the vertical scroll bar. See the "scrollbar" widget manual entry for
details on the vertsb component item.
Description
The iwidgets::scrolledlistbox command creates a scrolled listbox with additional options to manage
horizontal and vertical scrollbars. This includes options to control which scrollbars are displayed and
the method, i.e. statically or dynamically.
Example
package require Iwidgets 4.0
option add *textBackground white
proc selCmd {} {
puts stdout "[.slb getcurselection]"
}
proc defCmd {} {
puts stdout "Double Click"
return [selCmd]
}
iwidgets::scrolledlistbox .slb -selection single \
-vscrollmode static -hscrollmode dynamic -labeltext "List" \
-selectioncommand selCmd -dblclickcommand defCmd
pack .slb -padx 10 -pady 10 -fill both -expand yes
.slb insert end {Hello {Out There} World}
Inheritance
itk::Widget <- iwidgets::Labeledwidget <- iwidgets::Scrolledwidget <- iwidgets::Scrolledlistbox
Inherited Options
disabledForegroundlabelBitmaplabelFontlabelImagelabelMarginlabelPoslabelTextlabelVariablestatesticky
See the "labeledwidget" class manual entry for details on the inherited options.
Keywords
scrolledlistbox, listbox, widget
Tk iwidgets::scrolledlistbox(1)
Methods
The iwidgets::scrolledlistbox command creates a new Tcl command whose name is pathName. This command may
be used to invoke various operations on the widget. It has the following general form: pathNameoption
?argarg...? Option and the args determine the exact behavior of the command.
Many of the widget commands for a scrolledlistbox take as one argument an indicator of which entry of the
list box to operate on. These indicators are called indexes and may be specified in any of the following
forms:
number Specifies the element as a numerical index, where 0 corresponds to the first element in the
listbox.
active Indicates the element that has the location cursor. This element will be displayed with an
underline when the listbox has the keyboard focus, and it is specified with the activate
widget command.
anchor Indicates the anchor point for the selection, which is set with the selectionanchor widget
command.
end Indicates the end of the listbox. For some commands this means just after the last element;
for other commands it means the last element.
@x,y Indicates the element that covers the point in the listbox window specified by x and y (in
pixel coordinates). If no element covers that point, then the closest element to that point
is used.
pattern If the index doesn't satisfy one of the above forms then this form is used. Pattern is
pattern-matched against the items in the list box, in order from the top down, until a
matching entry is found. The rules of Tcl_StringMatch are used.
The following widget commands are possible for scrolledlistbox widgets:
Name
iwidgets::scrolledlistbox - Create and manipulate scrolled listbox widgets
Standard Options
activeBackgroundbackgroundborderWidthcursorexportSelectionforegroundhighlightColorhighlightThicknessreliefselectBackgroundselectBorderWidthselectForeground
See the "options" manual entry for details on the standard options.
Synopsis
iwidgets::scrolledlistboxpathName ?options?
Widget-Specific Methods
pathNamecgetoption
Returns the current value of the configuration option given by option. Option may have any of the
values accepted by the iwidgets::scrolledlistbox command.
pathNameclear
Clears the listbox of all items.
pathNameconfigure ?option? ?valueoptionvalue...?
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 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
iwidgets::scrolledlistbox command.
pathNamegetcurselection
Returns the contents of the listbox element indicated by the current selection indexes. Short cut
version of get and curselection command combination.
pathNamejustifydirection
Justifies the list contents via teh scroll bars in one of four directions: left, right, top, or
bottom.
pathNameselecteditemcount
Returns the number of items currently selected in the list.
pathNamesortorder
Sort the current list in any of the forms accepted by Tcl's lsort command. Also accepts either
ascending or descending order.
Widget-Specific Options
Name: dblClickCommand
Class: Command
Command-Line Switch: -dblclickcommand
Specifies a Tcl command procedure which is called when an item is double clicked. Typically this
occurs when mouse button 1 is double clicked over an item. Selection policy does not matter.
Name: height
Class: Height
Command-Line Switch: -height
Specifies the height of the scrolled list box as an entire unit. The value may be specified in
any of the forms acceptable to Tk_GetPixels. Any additional space needed to display the other
components such as labels, margins, and scrollbars force the listbox to be compressed. A value of
zero along with the same value for the width causes the value given for the visibleitems option to
be applied which administers geometry constraints in a different manner. The default height is
zero.
Name: hscrollMode
Class: ScrollMode
Command-Line Switch: -hscrollmode
Specifies the the display mode to be used for the horizontal scrollbar: static,dynamic, or none.
In static mode, the scroll bar is displayed at all times. Dynamic mode displays the scroll bar as
required, and none disables the scroll bar display. The default is static.
Name: sbWidth
Class: Width
Command-Line Switch: -sbwidth
Specifies the width of the scrollbar in any of the forms acceptable to Tk_GetPixels. The default
width is 15 pixels..
Name: scrollMargin
Class: Margin
Command-Line Switch: -scrollmargin
Specifies the distance between the listbox and scrollbar in any of the forms acceptable to
Tk_GetPixels. The default is 3 pixels.
Name: selectionCommand
Class: Command
Command-Line Switch: -selectioncommand
Specifies a Tcl command procedure which is called when an item is selected. Selection policy does
not matter.
Name: state
Class: State
Command-Line Switch: -state
Specifies one of two states for the listbox: normal or disabled. If the listbox is disabled then
selection is ignored. The default is normal.
Name: textBackground
Class: Background
Command-Line Switch -textbackground
Specifies the background color for the listbox. This allows the background within the listbox to
be different from the normal background color.
Name: textFont
Class: Font
Command-Line Switch: -textfont
Specifies the font to be used for text in the listbox. This allows for the font associated with
text internal to the scrolled listbox to be different than the font for labels.
Name: visibleitems
Class: VisibleItems
Command-Line Switch: -visibleitems
Specifies the widthxheight in characters and lines for the listbox. This option is only
administered if the width and height options are both set to zero, otherwise they take precedence.
The default value is 20x10. With the visibleitems option engaged, geometry constraints are
maintained only on the listbox. The size of the other components such as labels, margins, and
scroll bars, are additive and independent, effecting the overall size of the scrolled list box.
In contrast, should the width and height options have non zero values, they are applied to the
scrolled list box as a whole. The listbox is compressed or expanded to maintain the geometry
constraints.
Name: vscrollMode
Class: ScrollMode
Command-Line Switch: -vscrollmode
Specifies the the display mode to be used for the vertical scrollbar: static,dynamic, or none.
In static mode, the scroll bar is displayed at all times. Dynamic mode displays the scroll bar as
required, and none disables the scroll bar display. The default is static.
Name: width
Class: Width
Command-Line Switch: -width
Specifies the width of the scrolled list box as an entire unit. The value may be specified in any
of the forms acceptable to Tk_GetPixels. Any additional space needed to display the other
components such as labels, margins, and scrollbars force the listbox to be compressed. A value of
zero along with the same value for the height causes the value given for the visibleitems option
to be applied which administers geometry constraints in a different manner. The default width is
zero.
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