GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 6.2(Zoot) |
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Toplevel(n) |
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Toplevel − base class for mega-widgets in a top-level window
itk::Archetype <- itk::Toplevel
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background |
cursor |
See the "options" manual entry for details on the standard options.
Name:
title
Class: Title
Command-Line Switch: -title
Sets the title that the window manager displays in the title bar above the window. The default title is the null string. _________________________________________________________________
The Toplevel class inherits everything from the Archetype class, and adds a Tk toplevel called the "hull" component to represent the body of the mega-widget. The window class name for the hull is set to the most-specific class name for the mega-widget. The protected variable itk_interior contains the window path name for the "hull" component. Derived classes specialize this widget by packing other widget components into the hull.
Since the hull for the Toplevel class is implemented with a Tk toplevel, mega-widgets in the Toplevel class have their own toplevel window. This class is used to create dialog boxes and other pop-up windows.
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Name: |
hull |
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Class: |
Toplevel |
The "hull" component acts as the body for the entire mega-widget. Other components are packed into the hull to further specialize the widget.
The following example implements a MessageInfo mega-widget. It creates a pop-up message that the user can dismiss by pushing the "Dismiss" button.
option add *MessageInfo.title "Notice" widgetDefault
class
MessageInfo {
inherit itk::Toplevel
constructor
{args} {
itk_component add dismiss {
button $itk_interior.dismiss -text "Dismiss"
-command "destroy $itk_component(hull)"
}
pack $itk_component(dismiss) -side bottom -pady 4
itk_component
add separator {
frame $itk_interior.sep -height 2 -borderwidth 1 -relief
sunken
}
pack $itk_component(separator) -side bottom -fill x -padx
4
itk_component
add icon {
label $itk_interior.icon -bitmap info
}
pack $itk_component(icon) -side left -padx 8 -pady 8
itk_component
add infoFrame {
frame $itk_interior.info
}
pack $itk_component(infoFrame) -side left -expand yes -fill
both -padx 4 -pady 4
itk_component
add message {
label $itk_interior.mesg -width 20
} {
usual
rename -text -message message Text
}
pack $itk_component(message) -expand yes -fill both
eval itk_initialize $args
after idle
[code $this centerOnScreen]
}
protected
method centerOnScreen {} {
update idletasks
set wd [winfo reqwidth $itk_component(hull)]
set ht [winfo reqheight $itk_component(hull)]
set x [expr ([winfo screenwidth
$itk_component(hull)]-$wd)/2]
set y [expr ([winfo screenheight
$itk_component(hull)]-$ht)/2]
wm geometry $itk_component(hull) +$x+$y
}
}
usual
MessageInfo {
keep -background -cursor -foreground -font
keep -activebackground -activeforeground -disabledforeground
keep -highlightcolor -highlightthickness
}
#
# EXAMPLE: Create a notice window:
#
MessageInfo .m -message "File not
found:\n/usr/local/bin/foo"
itk, Archetype, Widget, mega-widget
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Toplevel(n) | |