struct Gtk::Overlay::GetChildPositionSignal

Overview

Emitted to determine the position and size of any overlay child widgets.

A handler for this signal should fill @allocation with the desired position and size for @widget, relative to the 'main' child of @overlay.

The default handler for this signal uses the @widget's halign and valign properties to determine the position and gives the widget its natural size (except that an alignment of %GTK_ALIGN_FILL will cause the overlay to be full-width/height). If the main child is a GtkScrolledWindow, the overlays are placed relative to its contents.

Defined in:

lib/gi-crystal/src/auto/gtk-4.0/overlay.cr

Instance Method Summary

Instance methods inherited from struct GObject::Signal

[](detail : String) : self [], name : String name

Constructor methods inherited from struct GObject::Signal

new(source : GObject::Object, detail : String? = nil) new

Instance Method Detail

def connect(*, after : Bool = false, &block : Proc(Gtk::Widget, Bool)) : GObject::SignalConnection #

def connect(handler : Proc(Gtk::Widget, Bool), *, after : Bool = false) : GObject::SignalConnection #

def connect(handler : Proc(Gtk::Overlay, Gtk::Widget, Bool), *, after : Bool = false) : GObject::SignalConnection #

def emit(widget : Gtk::Widget) : Nil #

def name : String #
Description copied from struct GObject::Signal

The signal name