Class
GtkRange
Description [src]
abstract class Gtk.Range : Gtk.Widget
implements Atk.ImplementorIface, Gtk.Buildable, Gtk.Orientable {
priv: GtkRangePrivate*
}GtkRange is the common base class for widgets which visualize an
adjustment, e.g GtkScale or GtkScrollbar.
Apart from signals for monitoring the parameters of the adjustment,
GtkRange provides properties and methods for influencing the sensitivity
of the “steppers”. It also provides properties and methods for setting a
“fill level” on range widgets. See gtk_range_set_fill_level().
Instance methods
gtk_range_get_adjustment
Get the GtkAdjustment which is the “model” object for GtkRange.
See gtk_range_set_adjustment() for details.
The return value does not have a reference added, so should not
be unreferenced.
gtk_range_get_lower_stepper_sensitivity
Gets the sensitivity policy for the stepper that points to the ‘lower’ end of the GtkRange’s adjustment.
since: 2.10
gtk_range_get_min_slider_size
This function is useful mainly for GtkRange subclasses.
deprecated: 3.20 since: 2.20
gtk_range_get_range_rect
This function returns the area that contains the range’s trough and its steppers, in widget->window coordinates.
since: 2.20
gtk_range_get_restrict_to_fill_level
Gets whether the range is restricted to the fill level.
since: 2.12
gtk_range_get_round_digits
Gets the number of digits to round the value to when
it changes. See GtkRange::change-value.
since: 2.24
gtk_range_get_show_fill_level
Gets whether the range displays the fill level graphically.
since: 2.12
gtk_range_get_slider_range
This function returns sliders range along the long dimension, in widget->window coordinates.
since: 2.20
gtk_range_get_upper_stepper_sensitivity
Gets the sensitivity policy for the stepper that points to the ‘upper’ end of the GtkRange’s adjustment.
since: 2.10
gtk_range_set_adjustment
Sets the adjustment to be used as the “model” object for this range
widget. The adjustment indicates the current range value, the
minimum and maximum range values, the step/page increments used
for keybindings and scrolling, and the page size. The page size
is normally 0 for GtkScale and nonzero for GtkScrollbar, and
indicates the size of the visible area of the widget being scrolled.
The page size affects the size of the scrollbar slider.
gtk_range_set_flippable
If a range is flippable, it will switch its direction if it is
horizontal and its direction is GTK_TEXT_DIR_RTL.
since: 2.18
gtk_range_set_increments
Sets the step and page sizes for the range.
The step size is used when the user clicks the GtkScrollbar
arrows or moves GtkScale via arrow keys. The page size
is used for example when moving via Page Up or Page Down keys.
gtk_range_set_inverted
Ranges normally move from lower to higher values as the slider moves from top to bottom or left to right. Inverted ranges have higher values at the top or on the right rather than on the bottom or left.
gtk_range_set_lower_stepper_sensitivity
Sets the sensitivity policy for the stepper that points to the ‘lower’ end of the GtkRange’s adjustment.
since: 2.10
gtk_range_set_min_slider_size
Sets the minimum size of the range’s slider.
deprecated: 3.20 since: 2.20
gtk_range_set_range
Sets the allowable values in the GtkRange, and clamps the range
value to be between min and max. (If the range has a non-zero
page size, it is clamped between min and max - page-size.)
gtk_range_set_restrict_to_fill_level
Sets whether the slider is restricted to the fill level. See
gtk_range_set_fill_level() for a general description of the fill
level concept.
since: 2.12
gtk_range_set_round_digits
Sets the number of digits to round the value to when
it changes. See GtkRange::change-value.
since: 2.24
gtk_range_set_show_fill_level
Sets whether a graphical fill level is show on the trough. See
gtk_range_set_fill_level() for a general description of the fill
level concept.
since: 2.12
gtk_range_set_slider_size_fixed
Sets whether the range’s slider has a fixed size, or a size that depends on its adjustment’s page size.
since: 2.20
gtk_range_set_upper_stepper_sensitivity
Sets the sensitivity policy for the stepper that points to the ‘upper’ end of the GtkRange’s adjustment.
since: 2.10
gtk_range_set_value
Sets the current value of the range; if the value is outside the
minimum or maximum range values, it will be clamped to fit inside
them. The range emits the GtkRange::value-changed signal if the
value changes.
Methods inherited from GtkBuildable (10)
gtk_buildable_add_child
Adds a child to buildable. type is an optional string
describing how the child should be added.
since: 2.12
gtk_buildable_construct_child
Constructs a child of buildable with the name name.
since: 2.12
gtk_buildable_custom_finished
This is similar to gtk_buildable_parser_finished() but is
called once for each custom tag handled by the buildable.
since: 2.12
gtk_buildable_custom_tag_end
This is called at the end of each custom element handled by the buildable.
since: 2.12
gtk_buildable_custom_tag_start
This is called for each unknown element under <child>.
since: 2.12
gtk_buildable_get_internal_child
Get the internal child called childname of the buildable object.
since: 2.12
gtk_buildable_get_name
Gets the name of the buildable object.
since: 2.12
gtk_buildable_parser_finished
Called when the builder finishes the parsing of a
[GtkBuilder UI definition][BUILDER-UI].
Note that this will be called once for each time
gtk_builder_add_from_file() or gtk_builder_add_from_string()
is called on a builder.
since: 2.12
gtk_buildable_set_buildable_property
Sets the property name name to value on the buildable object.
since: 2.12
gtk_buildable_set_name
Sets the name of the buildable object.
since: 2.12
Methods inherited from GtkOrientable (2)
gtk_orientable_get_orientation
Retrieves the orientation of the orientable.
since: 2.16
gtk_orientable_set_orientation
Sets the orientation of the orientable.
since: 2.16
Properties
Gtk.Range:fill-level
The fill level (e.g. prebuffering of a network stream). See gtk_range_set_fill_level().
since: 2.12
Gtk.Range:restrict-to-fill-level
The restrict-to-fill-level property controls whether slider movement is restricted to an upper boundary set by the fill level. See gtk_range_set_restrict_to_fill_level().
since: 2.12
Gtk.Range:round-digits
The number of digits to round the value to when
it changes, or -1. See GtkRange::change-value.
since: 2.24
Gtk.Range:show-fill-level
The show-fill-level property controls whether fill level indicator graphics are displayed on the trough. See gtk_range_set_show_fill_level().
since: 2.12
Properties inherited from GtkWidget (39)
Gtk.Widget:app-paintable
Gtk.Widget:can-default
Gtk.Widget:can-focus
Gtk.Widget:composite-child
Gtk.Widget:double-buffered
Whether the widget is double buffered.
deprecated: 3.14 since: 2.18
Gtk.Widget:events
Gtk.Widget:expand
Whether to expand in both directions. Setting this sets both GtkWidget:hexpand and GtkWidget:vexpand.
since: 3.0
Gtk.Widget:focus-on-click
Whether the widget should grab focus when it is clicked with the mouse.
since: 3.20
Gtk.Widget:halign
How to distribute horizontal space if widget gets extra space, see GtkAlign.
since: 3.0
Gtk.Widget:has-default
Gtk.Widget:has-focus
Gtk.Widget:has-tooltip
Enables or disables the emission of GtkWidget::query-tooltip on widget.
A value of TRUE indicates that widget can have a tooltip, in this case
the widget will be queried using GtkWidget::query-tooltip to determine
whether it will provide a tooltip or not.
since: 2.12
Gtk.Widget:height-request
Gtk.Widget:hexpand
Whether to expand horizontally. See gtk_widget_set_hexpand().
since: 3.0
Gtk.Widget:hexpand-set
Whether to use the GtkWidget:hexpand property. See gtk_widget_get_hexpand_set().
since: 3.0
Gtk.Widget:is-focus
Gtk.Widget:margin
Sets all four sides’ margin at once. If read, returns max margin on any side.
since: 3.0
Gtk.Widget:margin-bottom
Margin on bottom side of widget.
since: 3.0
Gtk.Widget:margin-end
Margin on end of widget, horizontally. This property supports left-to-right and right-to-left text directions.
since: 3.12
Gtk.Widget:margin-left
Margin on left side of widget.
deprecated: 3.12 since: 3.0
Gtk.Widget:margin-right
Margin on right side of widget.
deprecated: 3.12 since: 3.0
Gtk.Widget:margin-start
Margin on start of widget, horizontally. This property supports left-to-right and right-to-left text directions.
since: 3.12
Gtk.Widget:margin-top
Margin on top side of widget.
since: 3.0
Gtk.Widget:name
Gtk.Widget:no-show-all
Gtk.Widget:opacity
The requested opacity of the widget. See gtk_widget_set_opacity() for
more details about window opacity.
since: 3.8
Gtk.Widget:parent
Gtk.Widget:receives-default
Gtk.Widget:scale-factor
The scale factor of the widget. See gtk_widget_get_scale_factor() for
more details about widget scaling.
since: 3.10
Gtk.Widget:sensitive
Gtk.Widget:style
The style of the widget, which contains information about how it will look (colors, etc).
deprecated: Unknown
Gtk.Widget:tooltip-markup
Sets the text of tooltip to be the given string, which is marked up with the [Pango text markup language][PangoMarkupFormat]. Also see gtk_tooltip_set_markup().
since: 2.12
Gtk.Widget:tooltip-text
Sets the text of tooltip to be the given string.
since: 2.12
Gtk.Widget:valign
How to distribute vertical space if widget gets extra space, see GtkAlign.
since: 3.0
Gtk.Widget:vexpand
Whether to expand vertically. See gtk_widget_set_vexpand().
since: 3.0
Gtk.Widget:vexpand-set
Whether to use the GtkWidget:vexpand property. See gtk_widget_get_vexpand_set().
since: 3.0
Gtk.Widget:visible
Gtk.Widget:width-request
Gtk.Widget:window
The widget’s window if it is realized, NULL otherwise.
since: 2.14
Properties inherited from GtkOrientable (1)
Signals
Gtk.Range::adjust-bounds
Emitted before clamping a value, to give the application a chance to adjust the bounds.
Gtk.Range::change-value
The GtkRange::change-value signal is emitted when a scroll action is
performed on a range. It allows an application to determine the
type of scroll event that occurred and the resultant new value.
The application can handle the event itself and return TRUE to
prevent further processing. Or, by returning FALSE, it can pass
the event to other handlers until the default GTK+ handler is reached.
since: 2.6
Signals inherited from GtkWidget (69)
GtkWidget::accel-closures-changed
GtkWidget::button-press-event
The ::button-press-event signal will be emitted when a button (typically from a mouse) is pressed.
GtkWidget::button-release-event
The ::button-release-event signal will be emitted when a button (typically from a mouse) is released.
GtkWidget::can-activate-accel
Determines whether an accelerator that activates the signal
identified by signal_id can currently be activated.
This signal is present to allow applications and derived
widgets to override the default GtkWidget handling
for determining whether an accelerator can be activated.
GtkWidget::child-notify
The ::child-notify signal is emitted for each [child property][child-properties] that has changed on an object. The signal’s detail holds the property name.
GtkWidget::composited-changed
The ::composited-changed signal is emitted when the composited
status of widgets screen changes.
See gdk_screen_is_composited().
deprecated: 3.22
GtkWidget::configure-event
The ::configure-event signal will be emitted when the size, position or
stacking of the widget‘s window has changed.
GtkWidget::damage-event
Emitted when a redirected window belonging to widget gets drawn into.
The region/area members of the event shows what area of the redirected
drawable was drawn into.
since: 2.14
GtkWidget::delete-event
The ::delete-event signal is emitted if a user requests that
a toplevel window is closed. The default handler for this signal
destroys the window. Connecting gtk_widget_hide_on_delete() to
this signal will cause the window to be hidden instead, so that
it can later be shown again without reconstructing it.
GtkWidget::destroy
Signals that all holders of a reference to the widget should release the reference that they hold. May result in finalization of the widget if all references are released.
GtkWidget::destroy-event
The ::destroy-event signal is emitted when a GdkWindow is destroyed.
You rarely get this signal, because most widgets disconnect themselves
from their window before they destroy it, so no widget owns the
window at destroy time.
GtkWidget::direction-changed
The ::direction-changed signal is emitted when the text direction of a widget changes.
GtkWidget::drag-begin
The ::drag-begin signal is emitted on the drag source when a drag is started. A typical reason to connect to this signal is to set up a custom drag icon with e.g. gtk_drag_source_set_icon_pixbuf().
GtkWidget::drag-data-delete
The ::drag-data-delete signal is emitted on the drag source when a drag
with the action GDK_ACTION_MOVE is successfully completed. The signal
handler is responsible for deleting the data that has been dropped. What
“delete” means depends on the context of the drag operation.
GtkWidget::drag-data-get
The ::drag-data-get signal is emitted on the drag source when the drop
site requests the data which is dragged. It is the responsibility of
the signal handler to fill data with the data in the format which
is indicated by info. See gtk_selection_data_set() and gtk_selection_data_set_text().
GtkWidget::drag-data-received
The ::drag-data-received signal is emitted on the drop site when the
dragged data has been received. If the data was received in order to
determine whether the drop will be accepted, the handler is expected
to call gdk_drag_status() and not finish the drag.
If the data was received in response to a GtkWidget::drag-drop signal
(and this is the last target to be received), the handler for this
signal is expected to process the received data and then call
gtk_drag_finish(), setting the success parameter depending on
whether the data was processed successfully.
GtkWidget::drag-drop
The ::drag-drop signal is emitted on the drop site when the user drops
the data onto the widget. The signal handler must determine whether
the cursor position is in a drop zone or not. If it is not in a drop
zone, it returns FALSE and no further processing is necessary.
Otherwise, the handler returns TRUE. In this case, the handler must
ensure that gtk_drag_finish() is called to let the source know that
the drop is done. The call to gtk_drag_finish() can be done either
directly or in a GtkWidget::drag-data-received handler which gets
triggered by calling gtk_drag_get_data() to receive the data for one
or more of the supported targets.
GtkWidget::drag-end
The ::drag-end signal is emitted on the drag source when a drag is
finished. A typical reason to connect to this signal is to undo
things done in GtkWidget::drag-begin.
GtkWidget::drag-failed
The ::drag-failed signal is emitted on the drag source when a drag has
failed. The signal handler may hook custom code to handle a failed DnD
operation based on the type of error, it returns TRUE is the failure has
been already handled (not showing the default “drag operation failed”
animation), otherwise it returns FALSE.
since: 2.12
GtkWidget::drag-leave
The ::drag-leave signal is emitted on the drop site when the cursor
leaves the widget. A typical reason to connect to this signal is to
undo things done in GtkWidget::drag-motion, e.g. undo highlighting
with gtk_drag_unhighlight().
GtkWidget::drag-motion
The ::drag-motion signal is emitted on the drop site when the user
moves the cursor over the widget during a drag. The signal handler
must determine whether the cursor position is in a drop zone or not.
If it is not in a drop zone, it returns FALSE and no further processing
is necessary. Otherwise, the handler returns TRUE. In this case, the
handler is responsible for providing the necessary information for
displaying feedback to the user, by calling gdk_drag_status().
GtkWidget::draw
This signal is emitted when a widget is supposed to render itself.
The widget‘s top left corner must be painted at the origin of
the passed in context and be sized to the values returned by
gtk_widget_get_allocated_width() and gtk_widget_get_allocated_height().
since: 3.0
GtkWidget::enter-notify-event
The ::enter-notify-event will be emitted when the pointer enters
the widget‘s window.
GtkWidget::event
The GTK+ main loop will emit three signals for each GDK event delivered
to a widget: one generic ::event signal, another, more specific,
signal that matches the type of event delivered (e.g.
GtkWidget::key-press-event) and finally a generic
GtkWidget::event-after signal.
GtkWidget::event-after
After the emission of the GtkWidget::event signal and (optionally)
the second more specific signal, ::event-after will be emitted
regardless of the previous two signals handlers return values.
GtkWidget::focus
GtkWidget::focus-in-event
The ::focus-in-event signal will be emitted when the keyboard focus
enters the widget‘s window.
GtkWidget::focus-out-event
The ::focus-out-event signal will be emitted when the keyboard focus
leaves the widget‘s window.
GtkWidget::grab-broken-event
Emitted when a pointer or keyboard grab on a window belonging
to widget gets broken.
since: 2.8
GtkWidget::grab-focus
GtkWidget::grab-notify
The ::grab-notify signal is emitted when a widget becomes shadowed by a GTK+ grab (not a pointer or keyboard grab) on another widget, or when it becomes unshadowed due to a grab being removed.
GtkWidget::hide
The ::hide signal is emitted when widget is hidden, for example with gtk_widget_hide().
GtkWidget::hierarchy-changed
The ::hierarchy-changed signal is emitted when the
anchored state of a widget changes. A widget is
“anchored” when its toplevel
ancestor is a GtkWindow. This signal is emitted when
a widget changes from un-anchored to anchored or vice-versa.
GtkWidget::key-press-event
The ::key-press-event signal is emitted when a key is pressed. The signal emission will reoccur at the key-repeat rate when the key is kept pressed.
GtkWidget::key-release-event
The ::key-release-event signal is emitted when a key is released.
GtkWidget::keynav-failed
Gets emitted if keyboard navigation fails.
See gtk_widget_keynav_failed() for details.
since: 2.12
GtkWidget::leave-notify-event
The ::leave-notify-event will be emitted when the pointer leaves
the widget‘s window.
GtkWidget::map
The ::map signal is emitted when widget is going to be mapped, that is
when the widget is visible (which is controlled with
gtk_widget_set_visible()) and all its parents up to the toplevel widget
are also visible. Once the map has occurred, GtkWidget::map-event will
be emitted.
GtkWidget::map-event
The ::map-event signal will be emitted when the widget‘s window is
mapped. A window is mapped when it becomes visible on the screen.
GtkWidget::mnemonic-activate
The default handler for this signal activates widget if group_cycling
is FALSE, or just makes widget grab focus if group_cycling is TRUE.
GtkWidget::motion-notify-event
The ::motion-notify-event signal is emitted when the pointer moves
over the widget’s GdkWindow.
GtkWidget::move-focus
GtkWidget::parent-set
The ::parent-set signal is emitted when a new parent has been set on a widget.
GtkWidget::popup-menu
This signal gets emitted whenever a widget should pop up a context
menu. This usually happens through the standard key binding mechanism;
by pressing a certain key while a widget is focused, the user can cause
the widget to pop up a menu. For example, the GtkEntry widget creates
a menu with clipboard commands. See the
[Popup Menu Migration Checklist][checklist-popup-menu]
for an example of how to use this signal.
GtkWidget::property-notify-event
The ::property-notify-event signal will be emitted when a property on
the widget‘s window has been changed or deleted.
GtkWidget::proximity-in-event
To receive this signal the GdkWindow associated to the widget needs
to enable the #GDK_PROXIMITY_IN_MASK mask.
GtkWidget::proximity-out-event
To receive this signal the GdkWindow associated to the widget needs
to enable the #GDK_PROXIMITY_OUT_MASK mask.
GtkWidget::query-tooltip
Emitted when GtkWidget:has-tooltip is TRUE and the hover timeout
has expired with the cursor hovering “above” widget; or emitted when widget got
focus in keyboard mode.
since: 2.12
GtkWidget::realize
The ::realize signal is emitted when widget is associated with a
GdkWindow, which means that gtk_widget_realize() has been called or the
widget has been mapped (that is, it is going to be drawn).
GtkWidget::screen-changed
The ::screen-changed signal gets emitted when the screen of a widget has changed.
GtkWidget::scroll-event
The ::scroll-event signal is emitted when a button in the 4 to 7 range is pressed. Wheel mice are usually configured to generate button press events for buttons 4 and 5 when the wheel is turned.
GtkWidget::selection-clear-event
The ::selection-clear-event signal will be emitted when the
the widget‘s window has lost ownership of a selection.
GtkWidget::selection-get
GtkWidget::selection-notify-event
GtkWidget::selection-received
GtkWidget::selection-request-event
The ::selection-request-event signal will be emitted when
another client requests ownership of the selection owned by
the widget‘s window.
GtkWidget::show
The ::show signal is emitted when widget is shown, for example with gtk_widget_show().
GtkWidget::show-help
GtkWidget::size-allocate
GtkWidget::state-changed
The ::state-changed signal is emitted when the widget state changes. See gtk_widget_get_state().
deprecated: 3.0
GtkWidget::state-flags-changed
The ::state-flags-changed signal is emitted when the widget state changes, see gtk_widget_get_state_flags().
since: 3.0
GtkWidget::style-set
The ::style-set signal is emitted when a new style has been set
on a widget. Note that style-modifying functions like
gtk_widget_modify_base() also cause this signal to be emitted.
deprecated: 3.0
GtkWidget::style-updated
The ::style-updated signal is a convenience signal that is emitted when the
GtkStyleContext::changed signal is emitted on the widget‘s associated
GtkStyleContext as returned by gtk_widget_get_style_context().
since: 3.0
GtkWidget::touch-event
GtkWidget::unmap
The ::unmap signal is emitted when widget is going to be unmapped, which
means that either it or any of its parents up to the toplevel widget have
been set as hidden.
GtkWidget::unmap-event
The ::unmap-event signal will be emitted when the widget‘s window is
unmapped. A window is unmapped when it becomes invisible on the screen.
GtkWidget::unrealize
The ::unrealize signal is emitted when the GdkWindow associated with
widget is destroyed, which means that gtk_widget_unrealize() has been
called or the widget has been unmapped (that is, it is going to be hidden).
GtkWidget::visibility-notify-event
The ::visibility-notify-event will be emitted when the widget‘s
window is obscured or unobscured.
deprecated: 3.12
GtkWidget::window-state-event
The ::window-state-event will be emitted when the state of the
toplevel window associated to the widget changes.
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 GtkRangeClass {
GtkWidgetClass parent_class;
gchar* slider_detail;
gchar* stepper_detail;
void (* value_changed) (
GtkRange* range
);
void (* adjust_bounds) (
GtkRange* range,
gdouble new_value
);
void (* move_slider) (
GtkRange* range,
GtkScrollType scroll
);
void (* get_range_border) (
GtkRange* range,
GtkBorder* border_
);
gboolean (* change_value) (
GtkRange* range,
GtkScrollType scroll,
gdouble new_value
);
void (* get_range_size_request) (
GtkRange* range,
GtkOrientation orientation,
gint* minimum,
gint* natural
);
void (* _gtk_reserved1) (
void
);
void (* _gtk_reserved2) (
void
);
void (* _gtk_reserved3) (
void
);
}No description available.
Class members
parent_class: GtkWidgetClassNo description available.
slider_detail: gchar*No description available.
stepper_detail: gchar*No description available.
value_changed: void (* value_changed) ( GtkRange* range )No description available.
adjust_bounds: void (* adjust_bounds) ( GtkRange* range, gdouble new_value )No description available.
move_slider: void (* move_slider) ( GtkRange* range, GtkScrollType scroll )No description available.
get_range_border: void (* get_range_border) ( GtkRange* range, GtkBorder* border_ )No description available.
change_value: gboolean (* change_value) ( GtkRange* range, GtkScrollType scroll, gdouble new_value )No description available.
get_range_size_request: void (* get_range_size_request) ( GtkRange* range, GtkOrientation orientation, gint* minimum, gint* natural )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.