Class
GtkAdjustment
Description [src]
class Gtk.Adjustment : GObject.InitiallyUnowned
{
GtkAdjustmentPrivate* priv
}The GtkAdjustment object represents a value which has an associated lower
and upper bound, together with step and page increments, and a page size.
It is used within several GTK+ widgets, including GtkSpinButton, GtkViewport,
and GtkRange (which is a base class for GtkScrollbar and GtkScale).
The GtkAdjustment object does not update the value itself. Instead
it is left up to the owner of the GtkAdjustment to control the value.
Instance methods
gtk_adjustment_changed
Emits a GtkAdjustment::changed signal from the GtkAdjustment.
This is typically called by the owner of the GtkAdjustment after it has
changed any of the GtkAdjustment properties other than the value.
deprecated: 3.18
gtk_adjustment_clamp_page
Updates the GtkAdjustment:value property to ensure that the range
between lower and upper is in the current page (i.e. between
GtkAdjustment:value and GtkAdjustment:value + GtkAdjustment:page-size).
If the range is larger than the page size, then only the start of it will
be in the current page.
gtk_adjustment_get_minimum_increment
Gets the smaller of step increment and page increment.
since: 3.2
gtk_adjustment_set_value
Sets the GtkAdjustment value. The value is clamped to lie between
GtkAdjustment:lower and GtkAdjustment:upper.
gtk_adjustment_value_changed
Emits a GtkAdjustment::value-changed signal from the GtkAdjustment.
This is typically called by the owner of the GtkAdjustment after it has
changed the GtkAdjustment:value property.
deprecated: 3.18
Properties
Gtk.Adjustment:page-size
The page size of the adjustment.
Note that the page-size is irrelevant and should be set to zero
if the adjustment is used for a simple scalar value, e.g. in a
GtkSpinButton.
since: 2.4
Gtk.Adjustment:upper
The maximum value of the adjustment.
Note that values will be restricted by
upper - page-size if the page-size
property is nonzero.
since: 2.4
Signals
Gtk.Adjustment::changed
Emitted when one or more of the GtkAdjustment properties have been
changed, other than the GtkAdjustment:value property.
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.
Class structure
struct GtkAdjustmentClass {
GInitiallyUnownedClass parent_class;
void (* changed) (
GtkAdjustment* adjustment
);
void (* value_changed) (
GtkAdjustment* adjustment
);
void (* _gtk_reserved1) (
void
);
void (* _gtk_reserved2) (
void
);
void (* _gtk_reserved3) (
void
);
void (* _gtk_reserved4) (
void
);
}No description available.
Class members
parent_class: GInitiallyUnownedClassNo description available.
changed: void (* changed) ( GtkAdjustment* adjustment )No description available.
value_changed: void (* value_changed) ( GtkAdjustment* adjustment )No description available.
_gtk_reserved1: void (* _gtk_reserved1) ( void )No description available.
_gtk_reserved2: void (* _gtk_reserved2) ( void )No description available.
_gtk_reserved3: void (* _gtk_reserved3) ( void )No description available.
_gtk_reserved4: void (* _gtk_reserved4) ( void )No description available.
Virtual methods
Gtk.AdjustmentClass.changed
Emits a GtkAdjustment::changed signal from the GtkAdjustment.
This is typically called by the owner of the GtkAdjustment after it has
changed any of the GtkAdjustment properties other than the value.
deprecated: 3.18
Gtk.AdjustmentClass.value_changed
Emits a GtkAdjustment::value-changed signal from the GtkAdjustment.
This is typically called by the owner of the GtkAdjustment after it has
changed the GtkAdjustment:value property.
deprecated: 3.18