Gtk2::Adjustment

NAME

Gtk2::Adjustment − wrapper for GtkAdjustment

HIERARCHY

Glib::Object
+−−−−Glib::InitiallyUnowned
+−−−−Gtk2::Object
+−−−−Gtk2::Adjustment

METHODS

object = Gtk2::Adjustment−>new ($value, $lower, $upper, $step_increment, $page_increment, $page_size)

$value (double)

$lower (double)

$upper (double)

$step_increment (double)

$page_increment (double)

$page_size (double)

$adjustment−>changed
$adjustment−>clamp_page ($lower, $upper)

$lower (double)

$upper (double)

$adjustment−>configure ($value, $lower, $upper, $step_increment, $page_increment, $page_size)

$value (double)

$lower (double)

$upper (double)

$step_increment (double)

$page_increment (double)

$page_size (double)

Since: gtk+ 2.14

$adjustment−>set_lower ($newval)
$adjustment−>set_page_increment ($newval)
$adjustment−>set_page_size ($newval)
$adjustment−>set_step_increment ($newval)
$adjustment−>set_upper ($newval)

$newval (double)

These functions differ from the plain "−>lower" etc setters in that they emit "notify" and "changed" signals if $newval is different from the current value.

The corresponding "get_lower" etc are not wrapped because they’re the same as the "lower" etc field accessors above.

Since: gtk+ 2.14

double = $adjustment−>value
double = $adjustment−>value ($newval)
double = $adjustment−>lower
double = $adjustment−>lower ($newval)
double = $adjustment−>upper
double = $adjustment−>upper ($newval)
double = $adjustment−>step_increment
double = $adjustment−>step_increment ($newval)
double = $adjustment−>page_increment
double = $adjustment−>page_increment ($newval)
double = $adjustment−>page_size
double = $adjustment−>page_size ($newval)

$newval (double)

Get or set the six fields of a Gtk2::Adjustment.

The setter functions store $newval and return the old value. Note that they don’t emit any signals; it’s up to you to emit "notify" (because the fields are also properties) and "changed" or "value-changed", when you’re ready.

$adjustment−>value_changed
double = $adjustment−>get_value
$adjustment−>set_value ($value)

$value (double)

PROPERTIES

’lower’ (double : default 0 : readable / writable / private)

The minimum value of the adjustment

’page−increment’ (double : default 0 : readable / writable / private)

The page increment of the adjustment

’page−size’ (double : default 0 : readable / writable / private)

The page size of the adjustment

’step−increment’ (double : default 0 : readable / writable / private)

The step increment of the adjustment

’upper’ (double : default 0 : readable / writable / private)

The maximum value of the adjustment

’value’ (double : default 0 : readable / writable / private)

The value of the adjustment

SIGNALS

changed (Gtk2::Adjustment)
value-changed
(Gtk2::Adjustment)

SEE ALSO

Gtk2, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object

COPYRIGHT

Copyright (C) 2003−2011 by the gtk2−perl team.

This software is licensed under the LGPL. See Gtk2 for a full notice.