SpinButton
A GtkSpinButton is an ideal way to allow the user to set the value of some attribute.
Rather than having to directly type a number into a GtkEntry, GtkSpinButton allows the user to click on one of two arrows to increment or decrement the displayed value. A value can still be typed in, with the bonus that it can be checked to ensure it is in a given range.
The main properties of a GtkSpinButton are through an adjustment. See the class@Gtk.Adjustment documentation for more details about an adjustment's properties.
Note that GtkSpinButton will by default make its entry large enough to accommodate the lower and upper bounds of the adjustment. If this is not desired, the automatic sizing can be turned off by explicitly setting property@Gtk.Editable:width-chars to a value != -1.
Using a GtkSpinButton to get an integer
// Provides a function to retrieve an integer value from a GtkSpinButton
// and creates a spin button to model percentage values.
int
grab_int_value (GtkSpinButton *button,
gpointer user_data)
{
return gtk_spin_button_get_value_as_int (button);
}
void
create_integer_spin_button (void)
{
GtkWidget *window, *button;
GtkAdjustment *adjustment;
adjustment = gtk_adjustment_new (50.0, 0.0, 100.0, 1.0, 5.0, 0.0);
window = gtk_window_new ();
// creates the spinbutton, with no decimal places
button = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_window_set_child (GTK_WINDOW (window), button);
gtk_window_present (GTK_WINDOW (window));
}Using a GtkSpinButton to get a floating point value
// Provides a function to retrieve a floating point value from a
// GtkSpinButton, and creates a high precision spin button.
float
grab_float_value (GtkSpinButton *button,
gpointer user_data)
{
return gtk_spin_button_get_value (button);
}
void
create_floating_spin_button (void)
{
GtkWidget *window, *button;
GtkAdjustment *adjustment;
adjustment = gtk_adjustment_new (2.500, 0.0, 5.0, 0.001, 0.1, 0.0);
window = gtk_window_new ();
// creates the spinbutton, with three decimal places
button = gtk_spin_button_new (adjustment, 0.001, 3);
gtk_window_set_child (GTK_WINDOW (window), button);
gtk_window_present (GTK_WINDOW (window));
}Shortcuts and Gestures
The following signals have default keybindings:
signal@Gtk.SpinButton::change-value
CSS nodes
spinbutton.horizontal
├── text
│ ├── undershoot.left
│ ╰── undershoot.right
├── button.down
╰── button.upspinbutton.vertical
├── button.up
├── text
│ ├── undershoot.left
│ ╰── undershoot.right
╰── button.downGtkSpinButtons main CSS node has the name spinbutton. It creates subnodes for the entry and the two buttons, with these names. The button nodes have the style classes .up and .down. The GtkText subnodes (if present) are put below the text node. The orientation of the spin button is reflected in the .vertical or .horizontal style class on the main node.
Accessibility
GtkSpinButton uses the %GTK_ACCESSIBLE_ROLE_SPIN_BUTTON role.
Skipped during bindings generation
parameter
step: step: Out parameter is not supportedparameter
min: min: Out parameter is not supportedsignal
input: Unsupported parameternew_value: new_value: Out parameter is not supported
Constructors
Creates a new GtkSpinButton.
Creates a new GtkSpinButton with the given properties.
Properties
The accessible role of the given GtkAccessible implementation.
Whether to activate the default widget when the spin button is activated.
The adjustment that holds the value of the spin button.
A list of css classes applied to this widget.
The current position of the insertion cursor in chars.
If undo/redo should be enabled for the editable.
Whether the widget should grab focus when it is clicked with the mouse.
Enables or disables the emission of the ::query-tooltip signal on @widget.
Whether to use the hexpand property.
The GtkLayoutManager instance to use to compute the preferred size of the widget, and allocate its children.
Margin on bottom side of widget.
Margin on start of widget, horizontally.
The desired maximum width of the entry, in characters.
The orientation of the orientable.
Whether the widget will receive the default action when it is focused.
The scale factor of the widget.
Whether erroneous values are automatically changed to the spin buttons nearest step increment.
Sets the text of tooltip to be the given string, which is marked up with Pango markup.
Sets the text of tooltip to be the given string.
Whether the spin button should update always, or only when the value is acceptable.
Whether to use the vexpand property.
Number of characters to leave space for in the entry.
Functions
Enable or disable an action installed with gtk_widget_class_install_action().
Looks up the action in the action groups associated with
Activates the default.activate action from @widget.
For widgets that can be “activated” (buttons, menu items, etc.), this function activates them.
Adds @controller to @widget so that it will receive events.
Adds a style class to @widget.
Adds a widget to the list of mnemonic labels for this widget.
Queues an animation frame update and adds a callback to be called before each frame.
This function is only used by GtkWidget subclasses, to assign a size, position and (optionally) baseline to their child widgets.
Requests the user's screen reader to announce the given message.
Called by widgets as the user moves around the window using keyboard shortcuts.
Computes the bounds for @widget in the coordinate space of @target.
Computes whether a container should give this widget extra space when possible.
Translates the given @point in @widget's coordinates to coordinates relative to @target’s coordinate system.
Computes a matrix suitable to describe a transformation from
Changes the properties of an existing spin button.
Emitted when the spin button is activated.
Emitted at the end of a single user-visible operation on the contents.
Emitted when the user initiates a value change.
Emitted when text is deleted from the widget by the user.
Signals that all holders of a reference to the widget should release the reference that they hold.
Emitted when the text direction of a widget changes.
This signal is a sign for the cell renderer to update its value from the @cell_editable.
Emitted when @widget is hidden.
Emitted if keyboard navigation fails.
Emitted when @widget is going to be mapped.
Emitted when a widget is activated via a mnemonic.
Emitted when the focus is moved.
Emitted to tweak the formatting of the value for display.
Emitted when the widget’s tooltip is about to be shown.
Emitted when @widget is associated with a GdkSurface.
This signal is meant to indicate that the cell is finished editing, and the @cell_editable widget is being removed and may subsequently be destroyed.
Emitted when @widget is shown.
Emitted when the widget state changes.
Emitted when @widget is going to be unmapped.
Emitted when the GdkSurface associated with @widget is destroyed.
Emitted when the value is changed.
Emitted right after the spinbutton wraps from its maximum to its minimum value or vice-versa.
Creates a new PangoContext with the appropriate font map, font options, font description, and base direction for drawing text for this widget.
Creates a new PangoLayout with the appropriate font map, font description, and base direction for drawing text for this widget.
Retrieves the accessible platform state from the editable delegate.
Deletes the currently selected text of the editable.
Deletes a sequence of characters.
Clears the template children for the given widget.
Checks to see if a drag movement has passed the GTK drag threshold.
Emits the GtkCellEditable::editing-done signal.
Undoes the setup done by method@Gtk.Editable.init_delegate.
Retrieves the accessible parent for an accessible object.
Retrieves the accessible role of an accessible object.
Gets the alignment of the editable.
Returns the baseline that has currently been allocated to @widget.
Returns the height that has currently been allocated to @widget.
Returns the width that has currently been allocated to @widget.
Gets the first ancestor of @widget with type @widget_type.
Retrieves the accessible implementation for the given GtkAccessible.
Returns the baseline that has currently been allocated to @widget.
Gets the ID of the @buildable object.
Gets the value set with gtk_widget_set_child_visible().
Gets the clipboard object for @widget.
Gets the GtkEditable that @editable is delegating its implementation to.
Gets the reading direction for a particular widget.
Get the GdkDisplay for the toplevel window associated with this widget.
Retrieves whether @editable is editable.
Gets if undo/redo actions are enabled for @editable
Retrieves the first accessible child of an accessible object.
Returns the widget’s first child.
Returns the current focus child of @widget.
Gets the font map of @widget.
Obtains the frame clock for a widget.
Returns the widget’s last child.
Retrieves the desired maximum width of @editable, in characters.
Retrieves the next accessible sibling of an accessible object
Returns the widget’s next sibling.
Retrieves the orientation of the @orientable.
Gets a PangoContext with the appropriate font map, font description, and base direction for this widget.
Query a platform state, such as focus.
Retrieves the current position of the cursor relative to the start of the content of the editable.
Retrieves the minimum and natural size of a widget, taking into account the widget’s preference for height-for-width management.
Returns the widget’s previous sibling.
Gets the primary clipboard of @widget.
Determines whether @widget is realized.
Gets whether the widget prefers a height-for-width layout or a width-for-height layout.
Returns the widget’s sensitivity.
Gets the settings object holding the settings used for this widget.
Returns the content width or height of the widget.
Returns the widget state as a flag set.
Returns the style context associated to @widget.
Fetch an object build from the template XML for @widget_type in this @widget instance.
Get the value @spin_button represented as an integer.
Determines whether the widget is visible.
Gets the number of characters of space reserved for the contents of the editable.
Returns whether @css_class is currently applied to @widget.
Determines whether @widget is the current default widget within its toplevel.
Determines if the widget should show a visible indication that it has the global input focus.
Returns whether the widget is currently being destroyed.
Sets up a delegate for GtkEditable.
Creates and initializes child widgets defined in templates.
Inserts @group into @widget.
Inserts @widget into the child widget list of @parent.
Inserts @widget into the child widget list of @parent.
Determines whether @widget is somewhere inside @ancestor, possibly with intermediate containers.
Determines whether @widget can be drawn to.
Returns the widget’s effective sensitivity.
Emits the ::keynav-failed signal on the widget.
Returns the widgets for which this widget is the target of a mnemonic.
Emits the ::mnemonic-activate signal.
Returns a GListModel to track the children of @widget.
Returns a GListModel to track the class@Gtk.EventControllers of @widget.
Flags the widget for a rerun of the vfunc@Gtk.Widget.size_allocate function.
Flags a widget to have its size renegotiated.
Removes @controller from @widget, so that it doesn't process events anymore.
Removes a style from @widget.
Removes a widget from the list of mnemonic labels for this widget.
Removes a tick callback previously registered with gtk_widget_add_tick_callback().
Emits the GtkCellEditable::remove-widget signal.
Resets the accessible @property to its default value.
Resets the accessible @relation to its default value.
Resets the accessible @state to its default value.
Selects a region of text.
Sets the parent and sibling of an accessible object.
Sets the alignment for the contents of the editable.
Sets whether @widget should be mapped along with its parent.
Sets a named cursor to be shown when pointer devices point towards @widget.
Sets the reading direction on a particular widget.
Determines if the user can edit the text in the editable widget.
If enabled, changes to @editable will be saved for undo/redo actions.
Set @child as the current focus child of @widget.
Sets the font map to use for Pango rendering.
Sets the step and page increments for spin_button.
Set all margins to the same value.
Set start and end margin to horizontal and top and bottom margin to vertical
Set margins.
Sets the desired maximum width in characters of @editable.
Sets the orientation of the @orientable.
Sets the cursor position in the editable to the given value.
Sets the sensitivity of a widget.
Sets the minimum size of a widget.
Turns on flag values in the current widget state.
Sets the visibility state of @widget.
Changes the size request of the editable to be about the right size for @n_chars characters.
Returns whether @widget should contribute to the measuring and allocation of its parent.
Begins editing on a @cell_editable.
Triggers a tooltip query on the display where the toplevel of @widget is located.
Turns off flag values for the current widget state.
Updates the next accessible sibling of @self.