Package ch.bailu.gtk.gtk

Class Fixed

java.lang.Object
ch.bailu.gtk.type.Type
ch.bailu.gtk.type.Pointer
ch.bailu.gtk.gobject.Object
ch.bailu.gtk.gobject.InitiallyUnowned
ch.bailu.gtk.gtk.Widget
ch.bailu.gtk.gtk.Fixed
All Implemented Interfaces:
PointerInterface
public class Fixed extends Widget
`GtkFixed` 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.

https://docs.gtk.org/gtk4/class.Fixed.html

  • Constructor Details

    • Fixed

      public Fixed(PointerContainer pointer)

    • Fixed

      public Fixed()
      Creates a new `GtkFixed`.

  • Method Details

    • getClassHandler

      public static ClassHandler getClassHandler()

    • getChildTransform

      public Transform getChildTransform(@Nonnull Widget widget)
      Retrieves the transformation for @widget set using
      gtk_fixed_set_child_transform().
      Parameters:
      widget - a `GtkWidget`, child of @fixed
      Returns:
      a `GskTransform`

    • move

      public void move(@Nonnull Widget widget, double x, double y)
      Sets a translation transformation to the given @x and @y
      coordinates to the child @widget of the `GtkFixed`.
      Parameters:
      widget - the child widget
      x - the horizontal position to move the widget to
      y - the vertical position to move the widget to

    • put

      public void put(@Nonnull Widget widget, double x, double y)
      Adds a widget to a `GtkFixed` at the given position.
      Parameters:
      widget - the widget to add
      x - the horizontal position to place the widget at
      y - the vertical position to place the widget at

    • remove

      public void remove(@Nonnull Widget widget)
      Removes a child from @fixed.
      Parameters:
      widget - the child widget to remove

    • setChildTransform

      public void setChildTransform(@Nonnull Widget widget, @Nullable Transform 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].
      Parameters:
      widget - a `GtkWidget`, child of @fixed
      transform - the transformation assigned to @widget to reset @widget's transform

    • asAccessible

      public Accessible asAccessible()
      Implements interface Accessible. Call this to get access to interface functions.
      Overrides:
      asAccessible in class Widget
      Returns:
      Accessible

    • asBuildable

      public Buildable asBuildable()
      Implements interface Buildable. Call this to get access to interface functions.
      Overrides:
      asBuildable in class Widget
      Returns:
      Buildable

    • asConstraintTarget

      public ConstraintTarget asConstraintTarget()
      Implements interface ConstraintTarget. Call this to get access to interface functions.
      Overrides:
      asConstraintTarget in class Widget
      Returns:
      ConstraintTarget

    • getTypeID

      public static long getTypeID()

    • getParentTypeID

      public static long getParentTypeID()

    • getTypeSize

      public static TypeSystem.TypeSize getTypeSize()

    • getParentTypeSize

      public static TypeSystem.TypeSize getParentTypeSize()

    • getInstanceSize

      public static int getInstanceSize()