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Man Pages


Manual Reference Pages  -  IWIDGETS_SCROLLEDLISTBOX (n)

NAME

iwidgets::scrolledlistbox - Create and manipulate scrolled listbox widgets

CONTENTS

Synopsis
Description
Example
Author
Keywords

SYNOPSIS

iwidgets::scrolledlistbox pathName ?options?

INHERITANCE

itk::Widget <- iwidgets::Labeledwidget <- iwidgets::Scrolledwidget <- iwidgets::Scrolledlistbox

STANDARD OPTIONS



activeBackground  background        borderWidth        cursor
exportSelection   foreground        highlightColor     highlightThickness
relief            selectBackground  selectBorderWidth  selectForeground

See the "options" manual entry for details on the standard options.

ASSOCIATED OPTIONS


selectMode  listvariable

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.

INHERITED OPTIONS


disabledForegroundlabelBitmaplabelFontlabelImage
labelMargin labelPoslabelTextlabelVariable
state   sticky

See the "labeledwidget" class manual entry for details on the inherited options.

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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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.

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:


pathName option ?arg arg ...?

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 selection anchor 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:

ASSOCIATED METHODS


activate    bboxcurselectiondelete
get index   insertitemconfigure
nearest scanseeselection
size    xviewyview

See the "listbox" manual entry for details on the associated methods.

WIDGET-SPECIFIC METHODS

pathName cget option
  Returns the current value of the configuration option given by option. Option may have any of the values accepted by the iwidgets::scrolledlistbox command.
pathName clear
  Clears the listbox of all items.
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 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.
pathName getcurselection
  Returns the contents of the listbox element indicated by the current selection indexes. Short cut version of get and curselection command combination.
pathName justify direction
  Justifies the list contents via teh scroll bars in one of four directions: left, right, top, or bottom.
pathName selecteditemcount
  Returns the number of items currently selected in the list.
pathName sort order
  Sort the current list in any of the forms accepted by Tcl’s lsort command. Also accepts either ascending or descending order.

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.

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}

AUTHOR

Mark L. Ulferts

KEYWORDS

scrolledlistbox, listbox, widget
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