Adjustment

Object Hierarchy:

Description:

[ CCode ( type_id = "gtk_adjustment_get_type ()" ) ]
public class Adjustment : InitiallyUnowned

A model for a numeric value.

The `GtkAdjustment` has an associated lower and upper bound. It also contains step and page increments, and a page size.

Adjustments are used within several GTK widgets, including [class@Gtk.SpinButton], [class@Gtk.Viewport], [class@Gtk.Scrollbar] and [ class@Gtk.Scale].

The `GtkAdjustment` object does not update the value itself. Instead it is left up to the owner of the `GtkAdjustment` to control the value.

Namespace: Gtk

Package: gtk4

Content:

Properties:

public double lower { get; set; }
The minimum value of the adjustment.
public double page_increment { get; set; }
The page increment of the adjustment.
public double page_size { get; set; }
The page size of the adjustment.
public double step_increment { get; set; }
The step increment of the adjustment.
public double upper { get; set; }
The maximum value of the adjustment.
public double value { get; set; }
The value of the adjustment.

Creation methods:

public Adjustment (double value, double lower, double upper, double step_increment, double page_increment, double page_size)
Creates a new `GtkAdjustment`.

Methods:

public void clamp_page (double lower, double upper)
Updates the value of the adjustment to ensure that the given range is contained in the current page.
public void configure (double value, double lower, double upper, double step_increment, double page_increment, double page_size)
Sets all properties of the adjustment at once.
public double get_lower ()
Retrieves the minimum value of the adjustment.
public double get_minimum_increment ()
Gets the smaller of step increment and page increment.
public double get_page_increment ()
Retrieves the page increment of the adjustment.
public double get_page_size ()
Retrieves the page size of the adjustment.
public double get_step_increment ()
Retrieves the step increment of the adjustment.
public double get_upper ()
Retrieves the maximum value of the adjustment.
public double get_value ()
Gets the current value of the adjustment.
public void set_lower (double lower)
Sets the minimum value of the adjustment.
public void set_page_increment (double page_increment)
Sets the page increment of the adjustment.
public void set_page_size (double page_size)
Sets the page size of the adjustment.
public void set_step_increment (double step_increment)
Sets the step increment of the adjustment.
public void set_upper (double upper)
Sets the maximum value of the adjustment.
public void set_value (double value)
Sets the `GtkAdjustment` value.

Signals:

public virtual signal void changed ()
Emitted when one or more of the `GtkAdjustment` properties have been changed.
public virtual signal void value_changed ()
Emitted when the value has been changed.

Inherited Members:

All known members inherited from class GLib.Object