Полезная информация

 Tk::BrowseEntry - entry widget with popup choices.


NAME

Tk::BrowseEntry - entry widget with popup choices.


SYNOPSIS

    use Tk::BrowseEntry;
    $b = $frame->BrowseEntry(-label => "Label", -variable => \$var);
    $b->insert("end", "opt1");
    $b->insert("end", "opt2");
    $b->insert("end", "opt3");
    ...
    $b->pack;


DESCRIPTION

BrowseEntry is a poor man's ComboBox. It may be considered an enhanced version of LabEntry which provides a button to popup the choices of the possible values that the Entry may take. BrowseEntry supports all the options LabEntry supports except -textvariable. This is replaced by -variable. Other options that BrowseEntry supports.

-listwidth
Specifies the width of the popup listbox.

-variable
Specifies the variable in which the entered value is to be stored.

-browsecmd
Specifies a function to call when a selection is made in the popped up listbox. It is passed the widget and the text of the entry selected. This function is called after the entry variable has been assigned the value.

-listcmd
Specifies the function to call when the button next to the entry is pressed to popup the choices in the listbox. This is called before popping up the listbox, so can be used to populate the entries in the listbox.

-arrowimage
Specifies the image to be used in the arrow button beside the entry widget. The default is an downward arrow image in the file cbxarrow.xbm

-choices
Specifies the list of choices to pop up. This is a reference to an array of strings specifying the choices.

-state
Specifies one of three states for the widget: normal, readonly, or disabled. If the widget is disabled then the value may not be changed and the arrow button won't activate. If the widget is readonly, the entry may not be edited, but it may be changed by choosing a value from the popup listbox. normal is the default.


METHODS

insert(index, string)
Inserts the text of string at the specified index. This string then becomes available as one of the choices.

delete(index1, index2)
Deletes items from index1 to index2.


BUGS

BrowseEntry should really provide more of the ComboBox options.


AUTHOR

Rajappa Iyer rsi@earthling.net

Chris Dean ctdean@cogit.com made additions.

This code was inspired by ComboBox.tcl in Tix4.0 by Ioi Lam and bears more than a passing resemblance to ComboBox code. This may be distributed under the same conditions as Perl.

 Tk::BrowseEntry - entry widget with popup choices.