class: Fixed

[35:7] extends: object

Places its child widgets at fixed positions and with fixed sizes. GtkFixed performs no automatic layout management. For most applications, you should not use this container! It keeps you from having to learn about the other GTK containers, but it results in broken applications. With GtkFixed, the following things will result in truncated text, overlapping widgets, and other display bugs: - Themes, which may change widget sizes. - Fonts other than the one you used to write the app will of course change the size of widgets containing text; keep in mind that users may use a larger font because of difficulty reading the default, or they may be using a different OS that provides different fonts. - Translation of text into other languages changes its size. Also, display of non-English text will use a different font in many cases. In addition, GtkFixed does not pay attention to text direction and thus may produce unwanted results if your app is run under right-to-left languages such as Hebrew or Arabic. That is: normally GTK will order containers appropriately for the text direction, e.g. to put labels to the right of the thing they label when using an RTL language, but it can’t do that with GtkFixed. So if you need to reorder widgets depending on the text direction, you would need to manually detect it and adjust child positions accordingly. Finally, fixed positioning makes it kind of annoying to add/remove UI elements, since you have to reposition all the other elements. This is a long-term maintenance problem for your application. If you know none of these things are an issue for your application, and prefer the simplicity of GtkFixed, by all means use the widget. But you should be aware of the tradeoffs.

Members

• handleObj
• lib
• retainedCallbacks
• signalHandlerNames
• signalSetterHandlers

Methods

• Fixed ()

  Creates a new GtkFixed.

• toNativeHandle (Source)

  Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.

  • @p Source is the raw handle, raw buffer, wrapper, or null.
  • @r A raw pointer carrier or null when no pointer is present.

• getLib ()

  Returns the opened native library for this generated wrapper.

  • @r The opened native library.

• handle ()

  Returns the wrapped NativeHandle.

  • @r The wrapped NativeHandle.

• isNull ()

  Returns true when the wrapped handle is null.

  • @r A bool.

• describe ()

  Returns a small string for debugging generated wrappers.

  • @r A string.

• asWidget ()

  Wraps this handle as Widget.

  • @r A Widget object.

• asAccessible ()

  Wraps this handle as Accessible.

  • @r A Accessible object.

• asBuildable ()

  Wraps this handle as Buildable.

  • @r A Buildable object.

• asConstraintTarget ()

  Wraps this handle as ConstraintTarget.

  • @r A ConstraintTarget object.

• get_child_transform (object widget)

  Retrieves the transformation for @widget set using gtk_fixed_set_child_transform().

  • @p widget is a GtkWidget, child of @fixed.

• move (object widget, double x, double y)

  Sets a translation transformation to the given @x and @y coordinates to the child @widget of the GtkFixed.

  • @p widget is the child widget.
  • @p x is the horizontal position to move the widget to.
  • @p y is the vertical position to move the widget to.
  • @r None.

• put (object widget, double x, double y)

  Adds a widget to a GtkFixed at the given position.

  • @p widget is the widget to add.
  • @p x is the horizontal position to place the widget at.
  • @p y is the vertical position to place the widget at.
  • @r None.

• remove (object widget)

  Removes a child from @fixed.

  • @p widget is the child widget to remove.
  • @r None.

• set_child_transform (object widget, object transform)

  Sets the transformation for @widget. This is a convenience function that retrieves the [class@Gtk.FixedLayoutChild] instance associated to @widget and calls [method@Gtk.FixedLayoutChild.set_transform].

  • @p widget is a GtkWidget, child of @fixed.
  • @p transform is the transformation assigned to @widget to reset @widget's transform.
  • @r None.