Fixed

The #GtkFixed widget is a container which can place child widgets at fixed positions and with fixed sizes, given in pixels. #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 GUI 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.

See also #GtkLayout, which shares the ability to perform fixed positioning of child widgets and additionally adds custom drawing and scrollability.

class Fixed : Container {

this(void* ptr, Flag!"Take" take);

static GType _getGType();

GType _gType [@property getter];

Fixed self();

static FixedGidBuilder builder();

this();

void move(gtk.widget.Widget widget, int x, int y);

void put(gtk.widget.Widget widget, int x, int y);

}

Constructors

this this(void* ptr, Flag!"Take" take)
this this(): Creates a new #GtkFixed.

Members

Functions

move void move(gtk.widget.Widget widget, int x, int y): Moves a child of a #GtkFixed container to the given position.
put void put(gtk.widget.Widget widget, int x, int y): Adds a widget to a #GtkFixed container at the given position.
self Fixed self(): Returns this, for use in with statements.

Properties

_gType GType _gType [@property getter]

Static functions

_getGType GType _getGType()
builder FixedGidBuilder builder(): Get builder for gtk.fixed.Fixed

Inherited Members

From Container

_getGType GType _getGType()
_gType GType _gType [@property getter]
self Container self(): Returns this, for use in with statements.
builder ContainerGidBuilder builder(): Get builder for gtk.container.Container
borderWidth uint borderWidth [@property getter]
borderWidth uint borderWidth [@property setter]
child gtk.widget.Widget child [@property setter]
resizeMode gtk.types.ResizeMode resizeMode [@property getter]
resizeMode gtk.types.ResizeMode resizeMode [@property setter]
add void add(gtk.widget.Widget widget): Adds widget to container. Typically used for simple containers such as #GtkWindow, #GtkFrame, or #GtkButton; for more complicated layout containers such as #GtkBox or #GtkGrid, this function will pick default packing parameters that may not be correct. So consider functions such as gtk.box.Box.packStart and gtk.grid.Grid.attach as an alternative to gtk.container.Container.add in those cases. A widget may be added to only one container at a time; you can’t place the same widget inside two different containers.
checkResize void checkResize()
childGetProperty void childGetProperty(gtk.widget.Widget child, string propertyName, gobject.value.Value value): Gets the value of a child property for child and container.
childNotify void childNotify(gtk.widget.Widget child, string childProperty): Emits a #GtkWidget::child-notify signal for the [child property][child-properties] child_property on the child.
childNotifyByPspec void childNotifyByPspec(gtk.widget.Widget child, gobject.param_spec.ParamSpec pspec): Emits a #GtkWidget::child-notify signal for the [child property][child-properties] specified by pspec on the child.
childSetProperty void childSetProperty(gtk.widget.Widget child, string propertyName, gobject.value.Value value): Sets a child property for child and container.
childType gobject.types.GType childType(): Returns the type of the children supported by the container.
forall void forall(gtk.types.Callback callback): Invokes callback on each direct child of container, including children that are considered “internal” (implementation details of the container). “Internal” children generally weren’t added by the user of the container, but were added by the container implementation itself.
foreach_ void foreach_(gtk.types.Callback callback): Invokes callback on each non-internal child of container. See gtk.container.Container.forall for details on what constitutes an “internal” child. For all practical purposes, this function should iterate over precisely those child widgets that were added to the container by the application with explicit add() calls.
getBorderWidth uint getBorderWidth(): Retrieves the border width of the container. See gtk.container.Container.setBorderWidth.
getChildren gtk.widget.Widget[] getChildren(): Returns the container’s non-internal children. See gtk.container.Container.forall for details on what constitutes an "internal" child.
getFocusChain bool getFocusChain(gtk.widget.Widget[] focusableWidgets): Retrieves the focus chain of the container, if one has been set explicitly. If no focus chain has been explicitly set, GTK+ computes the focus chain based on the positions of the children. In that case, GTK+ stores null in focusable_widgets and returns false.
getFocusChild gtk.widget.Widget getFocusChild(): Returns the current focus child widget inside container. This is not the currently focused widget. That can be obtained by calling gtk.window.Window.getFocus.
getFocusHadjustment gtk.adjustment.Adjustment getFocusHadjustment(): Retrieves the horizontal focus adjustment for the container. See gtk_container_set_focus_hadjustment ().
getFocusVadjustment gtk.adjustment.Adjustment getFocusVadjustment(): Retrieves the vertical focus adjustment for the container. See gtk.container.Container.setFocusVadjustment.
getPathForChild gtk.widget_path.WidgetPath getPathForChild(gtk.widget.Widget child): Returns a newly created widget path representing all the widget hierarchy from the toplevel down to and including child.
getResizeMode gtk.types.ResizeMode getResizeMode(): Returns the resize mode for the container. See gtk_container_set_resize_mode ().
propagateDraw void propagateDraw(gtk.widget.Widget child, cairo.context.Context cr): When a container receives a call to the draw function, it must send synthetic #GtkWidget::draw calls to all children that don’t have their own #GdkWindows. This function provides a convenient way of doing this. A container, when it receives a call to its #GtkWidget::draw function, calls gtk.container.Container.propagateDraw once for each child, passing in the cr the container received.
remove void remove(gtk.widget.Widget widget): Removes widget from container. widget must be inside container. Note that container will own a reference to widget, and that this may be the last reference held; so removing a widget from its container can destroy that widget. If you want to use widget again, you need to add a reference to it before removing it from a container, using gobject.object.ObjectWrap.ref_. If you don’t want to use widget again it’s usually more efficient to simply destroy it directly using gtk.widget.Widget.destroy since this will remove it from the container and help break any circular reference count cycles.
resizeChildren void resizeChildren()
setBorderWidth void setBorderWidth(uint borderWidth): Sets the border width of the container.
setFocusChain void setFocusChain(gtk.widget.Widget[] focusableWidgets): Sets a focus chain, overriding the one computed automatically by GTK+.
setFocusChild void setFocusChild(gtk.widget.Widget child): Sets, or unsets if child is null, the focused child of container.
setFocusHadjustment void setFocusHadjustment(gtk.adjustment.Adjustment adjustment): Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. This function sets the horizontal alignment. See gtk.scrolled_window.ScrolledWindow.getHadjustment for a typical way of obtaining the adjustment and gtk.container.Container.setFocusVadjustment for setting the vertical adjustment.
setFocusVadjustment void setFocusVadjustment(gtk.adjustment.Adjustment adjustment): Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. This function sets the vertical alignment. See gtk.scrolled_window.ScrolledWindow.getVadjustment for a typical way of obtaining the adjustment and gtk.container.Container.setFocusHadjustment for setting the horizontal adjustment.
setReallocateRedraws void setReallocateRedraws(bool needsRedraws): Sets the reallocate_redraws flag of the container to the given value.
setResizeMode void setResizeMode(gtk.types.ResizeMode resizeMode): Sets the resize mode for the container.
unsetFocusChain void unsetFocusChain(): Removes a focus chain explicitly set with gtk.container.Container.setFocusChain.
connectAdd gulong connectAdd(T callback, Flag!"After" after): Connect to Add signal.
connectCheckResize gulong connectCheckResize(T callback, Flag!"After" after): Connect to CheckResize signal.
connectRemove gulong connectRemove(T callback, Flag!"After" after): Connect to Remove signal.
connectSetFocusChild gulong connectSetFocusChild(T callback, Flag!"After" after): Connect to SetFocusChild signal.

gtk fixed classes