Package org.gnome.gtk

Class Widget.WidgetClass

java.lang.Object

io.github.jwharm.javagi.base.ProxyInstance

org.gnome.gobject.TypeClass

org.gnome.gobject.GObject.ObjectClass

org.gnome.gobject.InitiallyUnowned.InitiallyUnownedClass

org.gnome.gtk.Widget.WidgetClass

All Implemented Interfaces:

Proxy

Direct Known Subclasses:

Avatar.AvatarClass, Banner.BannerClass, Bin.BinClass, BottomSheet.BottomSheetClass, Box.BoxClass, BreakpointBin.BreakpointBinClass, Button.ButtonClass, ButtonContent.ButtonContentClass, Carousel.CarouselClass, CarouselIndicatorDots.CarouselIndicatorDotsClass, CarouselIndicatorLines.CarouselIndicatorLinesClass, CheckButton.CheckButtonClass, Clamp.ClampClass, ClampScrollable.ClampScrollableClass, ColorDialogButton.ColorDialogButtonClass, ComboBox.ComboBoxClass, CompletionCell.CompletionCellClass, Dialog.DialogClass, DragIcon.DragIconClass, DrawingArea.DrawingAreaClass, DropDown.DropDownClass, EditableLabel.EditableLabelClass, Entry.EntryClass, Fixed.FixedClass, Flap.FlapClass, FlowBoxChild.FlowBoxChildClass, FontDialogButton.FontDialogButtonClass, Frame.FrameClass, GLArea.GLAreaClass, GraphicsOffload.GraphicsOffloadClass, Grid.GridClass, Gutter.GutterClass, GutterRenderer.GutterRendererClass, HeaderBar.HeaderBarClass, HoverDisplay.HoverDisplayClass, Inscription.InscriptionClass, LayoutSlot.LayoutSlotClass, Leaflet.LeafletClass, ListBoxRow.ListBoxRowClass, MediaControls.MediaControlsClass, MultiLayoutView.MultiLayoutViewClass, NavigationPage.NavigationPageClass, NavigationSplitView.NavigationSplitViewClass, NavigationView.NavigationViewClass, OverlaySplitView.OverlaySplitViewClass, Picture.PictureClass, Popover.PopoverClass, PreferencesGroup.PreferencesGroupClass, PreferencesPage.PreferencesPageClass, Range.RangeClass, ScaleButton.ScaleButtonClass, Spinner.SpinnerClass, SplitButton.SplitButtonClass, Squeezer.SqueezerClass, StatusPage.StatusPageClass, StyleSchemeChooserWidget.StyleSchemeChooserWidgetClass, StyleSchemePreview.StyleSchemePreviewClass, TabBar.TabBarClass, TabButton.TabButtonClass, TabOverview.TabOverviewClass, TabView.TabViewClass, TextView.TextViewClass, ToastOverlay.ToastOverlayClass, ToolbarView.ToolbarViewClass, TreeExpander.TreeExpanderClass, TreeView.TreeViewClass, Video.VideoClass, ViewStack.ViewStackClass, ViewSwitcher.ViewSwitcherClass, ViewSwitcherBar.ViewSwitcherBarClass, ViewSwitcherTitle.ViewSwitcherTitleClass, WebViewBase.WebViewBaseClass, Window.WindowClass, WindowControls.WindowControlsClass, WindowHandle.WindowHandleClass, WindowTitle.WindowTitleClass

Enclosing class:

Widget

public static class Widget.WidgetClass
extends InitiallyUnowned.InitiallyUnownedClass

Constructor Summary

Constructors

Constructor	Description
WidgetClass()	Allocate a new WidgetClass.
WidgetClass(Arena arena)	Allocate a new WidgetClass.
WidgetClass(MemorySegment address)	Create a WidgetClass proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
void	addBinding(int keyval, Set<ModifierType> mods, ShortcutFunc callback, @Nullable String formatString, Object... varargs)	Creates a new shortcut for this WidgetClass that calls the given callback with arguments read according to formatString.
void	addBinding(int keyval, ModifierType mods, ShortcutFunc callback, @Nullable String formatString, Object... varargs)	Creates a new shortcut for this WidgetClass that calls the given callback with arguments read according to formatString.
void	addBindingAction(int keyval, Set<ModifierType> mods, String actionName, @Nullable String formatString, Object... varargs)	Creates a new shortcut for this WidgetClass that activates the given actionName with arguments read according to formatString.
void	addBindingAction(int keyval, ModifierType mods, String actionName, @Nullable String formatString, Object... varargs)	Creates a new shortcut for this WidgetClass that activates the given actionName with arguments read according to formatString.
void	addBindingSignal(int keyval, Set<ModifierType> mods, String signal, @Nullable String formatString, Object... varargs)	Creates a new shortcut for this WidgetClass that emits the given action signal with arguments read according to formatString.
void	addBindingSignal(int keyval, ModifierType mods, String signal, @Nullable String formatString, Object... varargs)	Creates a new shortcut for this WidgetClass that emits the given action signal with arguments read according to formatString.
void	addShortcut(Shortcut shortcut)	Installs a shortcut in this WidgetClass.
void	bindTemplateCallbackFull(String callbackName, Callback callbackSymbol)	Declares a callbackSymbol to handle callbackName from the template XML defined for widgetType.
void	bindTemplateChildFull(String name, boolean internalChild, long structOffset)	Automatically assign an object declared in the class template XML to be set to a location on a freshly built instance’s private data, or alternatively accessible via Widget.getTemplateChild(org.gnome.glib.Type, java.lang.String).
AccessibleRole	getAccessibleRole()	Retrieves the accessible role used by the given GtkWidget class.
int	getActivateSignal()	Retrieves the signal id for the activation signal.
String	getCssName()	Gets the name used by this class for matching in CSS code.
Type	getLayoutManagerType()	Retrieves the type of the LayoutManager used by widgets of class this WidgetClass.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
void	installAction(String actionName, @Nullable String parameterType, WidgetActionActivateFunc activate)	This should be called at class initialization time to specify actions to be added for all instances of this class.
void	installPropertyAction(String actionName, String propertyName)	Installs an action called actionName on this WidgetClass and binds its state to the value of the propertyName property.
void	overrideComputeExpand(Arena arena, Method method)	Override virtual method compute_expand.
void	overrideContains(Arena arena, Method method)	Override virtual method contains.
void	overrideCssChanged(Arena arena, Method method)	Override virtual method css_changed.
void	overrideDirectionChanged(Arena arena, Method method)	Override virtual method direction_changed.
void	overrideFocus(Arena arena, Method method)	Override virtual method focus.
void	overrideGetRequestMode(Arena arena, Method method)	Override virtual method get_request_mode.
void	overrideGrabFocus(Arena arena, Method method)	Override virtual method grab_focus.
void	overrideHide(Arena arena, Method method)	Override virtual method hide.
void	overrideKeynavFailed(Arena arena, Method method)	Override virtual method keynav_failed.
void	overrideMap(Arena arena, Method method)	Override virtual method map.
void	overrideMeasure(Arena arena, Method method)	Override virtual method measure.
void	overrideMnemonicActivate(Arena arena, Method method)	Override virtual method mnemonic_activate.
void	overrideMoveFocus(Arena arena, Method method)	Override virtual method move_focus.
void	overrideQueryTooltip(Arena arena, Method method)	Override virtual method query_tooltip.
void	overrideRealize(Arena arena, Method method)	Override virtual method realize.
void	overrideRoot(Arena arena, Method method)	Override virtual method root.
void	overrideSetFocusChild(Arena arena, Method method)	Override virtual method set_focus_child.
void	overrideShow(Arena arena, Method method)	Override virtual method show.
void	overrideSizeAllocate(Arena arena, Method method)	Override virtual method size_allocate.
void	overrideSnapshot(Arena arena, Method method)	Override virtual method snapshot.
void	overrideStateFlagsChanged(Arena arena, Method method)	Override virtual method state_flags_changed.
void	overrideSystemSettingChanged(Arena arena, Method method)	Override virtual method system_setting_changed.
void	overrideUnmap(Arena arena, Method method)	Override virtual method unmap.
void	overrideUnrealize(Arena arena, Method method)	Override virtual method unrealize.
void	overrideUnroot(Arena arena, Method method)	Override virtual method unroot.
boolean	queryAction(int index, Type owner, Out<String> actionName, @Nullable Out<VariantType> parameterType, @Nullable Out<String> propertyName)	Returns details about the index-th action that has been installed for this WidgetClass during class initialization.
void	setAccessibleRole(AccessibleRole accessibleRole)	Sets the accessible role used by the given GtkWidget class.
void	setActivateSignal(int signalId)	Sets the GtkWidgetClass.activate_signal field with the given signalId.
void	setActivateSignalFromName(String signalName)	Sets the GtkWidgetClass.activate_signal field with the signal id for the given signalName.
void	setCssName(String name)	Sets the name to be used for CSS matching of widgets.
void	setLayoutManagerType(Type type)	Sets the type to be used for creating layout managers for widgets of this WidgetClass.
void	setTemplate(Bytes templateBytes)	This should be called at class initialization time to specify the GtkBuilder XML to be used to extend a widget.
void	setTemplateFromResource(String resourceName)	A convenience function that calls WidgetClass#setTemplate with the contents of a GResource.
void	setTemplateScope(BuilderScope scope)	For use in language bindings, this will override the default GtkBuilderScope to be used when parsing GtkBuilder XML from this class’s template data.

Methods inherited from class org.gnome.gobject.GObject.ObjectClass

findProperty, installProperties, installProperty, listProperties, overrideConstructed, overrideConstructor, overrideDispatchPropertiesChanged, overrideDispose, overrideFinalize, overrideGetProperty, overrideNotify, overrideProperty, overrideSetProperty, readFlags, readNConstructProperties, readNPspecs, readPdummy, readPspecs, writeFlags, writeNConstructProperties, writeNPspecs, writePdummy, writePspecs

Methods inherited from class org.gnome.gobject.TypeClass

addPrivate, adjustPrivateOffset, getInstancePrivateOffset, getPrivate, peek, peekParent, peekStatic, readGType, ref, unref, unrefUncached, writeGType

Methods inherited from class io.github.jwharm.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

WidgetClass

public WidgetClass(MemorySegment address)

Create a WidgetClass proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

WidgetClass

public WidgetClass(Arena arena)

Allocate a new WidgetClass.

Parameters:

arena - to control the memory allocation scope

WidgetClass

public WidgetClass()

Allocate a new WidgetClass. The memory is allocated with Arena.ofAuto().

Method Details

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

overrideShow

public void overrideShow(Arena arena,
 Method method)

Override virtual method show.

Parameters:

method - the method to invoke

overrideHide

public void overrideHide(Arena arena,
 Method method)

Override virtual method hide.

Parameters:

method - the method to invoke

overrideMap

public void overrideMap(Arena arena,
 Method method)

Override virtual method map.

Parameters:

method - the method to invoke

overrideUnmap

public void overrideUnmap(Arena arena,
 Method method)

Override virtual method unmap.

Parameters:

method - the method to invoke

overrideRealize

public void overrideRealize(Arena arena,
 Method method)

Override virtual method realize.

Parameters:

method - the method to invoke

overrideUnrealize

public void overrideUnrealize(Arena arena,
 Method method)

Override virtual method unrealize.

Parameters:

method - the method to invoke

overrideRoot

public void overrideRoot(Arena arena,
 Method method)

Override virtual method root.

Parameters:

method - the method to invoke

overrideUnroot

public void overrideUnroot(Arena arena,
 Method method)

Override virtual method unroot.

Parameters:

method - the method to invoke

overrideSizeAllocate

public void overrideSizeAllocate(Arena arena,
 Method method)

Override virtual method size_allocate.

Parameters:

method - the method to invoke

overrideStateFlagsChanged

public void overrideStateFlagsChanged(Arena arena,
 Method method)

Override virtual method state_flags_changed.

Parameters:

method - the method to invoke

overrideDirectionChanged

public void overrideDirectionChanged(Arena arena,
 Method method)

Override virtual method direction_changed.

Parameters:

method - the method to invoke

overrideGetRequestMode

public void overrideGetRequestMode(Arena arena,
 Method method)

Override virtual method get_request_mode.

Parameters:

method - the method to invoke

overrideMeasure

public void overrideMeasure(Arena arena,
 Method method)

Override virtual method measure.

Parameters:

method - the method to invoke

overrideMnemonicActivate

public void overrideMnemonicActivate(Arena arena,
 Method method)

Override virtual method mnemonic_activate.

Parameters:

method - the method to invoke

overrideGrabFocus

public void overrideGrabFocus(Arena arena,
 Method method)

Override virtual method grab_focus.

Parameters:

method - the method to invoke

overrideFocus

public void overrideFocus(Arena arena,
 Method method)

Override virtual method focus.

Parameters:

method - the method to invoke

overrideSetFocusChild

public void overrideSetFocusChild(Arena arena,
 Method method)

Override virtual method set_focus_child.

Parameters:

method - the method to invoke

overrideMoveFocus

public void overrideMoveFocus(Arena arena,
 Method method)

Override virtual method move_focus.

Parameters:

method - the method to invoke

overrideKeynavFailed

public void overrideKeynavFailed(Arena arena,
 Method method)

Override virtual method keynav_failed.

Parameters:

method - the method to invoke

overrideQueryTooltip

public void overrideQueryTooltip(Arena arena,
 Method method)

Override virtual method query_tooltip.

Parameters:

method - the method to invoke

overrideComputeExpand

public void overrideComputeExpand(Arena arena,
 Method method)

Override virtual method compute_expand.

Parameters:

method - the method to invoke

overrideCssChanged

public void overrideCssChanged(Arena arena,
 Method method)

Override virtual method css_changed.

Parameters:

method - the method to invoke

overrideSystemSettingChanged

public void overrideSystemSettingChanged(Arena arena,
 Method method)

Override virtual method system_setting_changed.

Parameters:

method - the method to invoke

overrideSnapshot

public void overrideSnapshot(Arena arena,
 Method method)

Override virtual method snapshot.

Parameters:

method - the method to invoke

overrideContains

public void overrideContains(Arena arena,
 Method method)

Override virtual method contains.

Parameters:

method - the method to invoke

addBinding

public void addBinding(int keyval,
 Set<ModifierType> mods,
 ShortcutFunc callback,
 @Nullable
 @Nullable String formatString,
 Object... varargs)

Creates a new shortcut for this WidgetClass that calls the given callback with arguments read according to formatString.

The arguments and format string must be provided in the same way as with g_variant_new().

This function is a convenience wrapper around WidgetClass#addShortcut and must be called during class initialization. It does not provide for user_data, if you need that, you will have to use WidgetClass#addShortcut with a custom shortcut.

Parameters:

keyval - key value of binding to install

mods - key modifier of binding to install

callback - the callback to call upon activation

formatString - GVariant format string for arguments or null for no arguments

varargs - arguments, as given by format string

addBinding

public void addBinding(int keyval,
 ModifierType mods,
 ShortcutFunc callback,
 @Nullable
 @Nullable String formatString,
 Object... varargs)

Creates a new shortcut for this WidgetClass that calls the given callback with arguments read according to formatString.

The arguments and format string must be provided in the same way as with g_variant_new().

This function is a convenience wrapper around WidgetClass#addShortcut and must be called during class initialization. It does not provide for user_data, if you need that, you will have to use WidgetClass#addShortcut with a custom shortcut.

Parameters:

keyval - key value of binding to install

mods - key modifier of binding to install

callback - the callback to call upon activation

formatString - GVariant format string for arguments or null for no arguments

varargs - arguments, as given by format string

addBindingAction

public void addBindingAction(int keyval,
 Set<ModifierType> mods,
 String actionName,
 @Nullable
 @Nullable String formatString,
 Object... varargs)

Creates a new shortcut for this WidgetClass that activates the given actionName with arguments read according to formatString.

The arguments and format string must be provided in the same way as with g_variant_new().

This function is a convenience wrapper around WidgetClass#addShortcut and must be called during class initialization.

Parameters:

keyval - key value of binding to install

mods - key modifier of binding to install

actionName - the action to activate

formatString - GVariant format string for arguments or null for no arguments

varargs - arguments, as given by format string

addBindingAction

public void addBindingAction(int keyval,
 ModifierType mods,
 String actionName,
 @Nullable
 @Nullable String formatString,
 Object... varargs)

Creates a new shortcut for this WidgetClass that activates the given actionName with arguments read according to formatString.

The arguments and format string must be provided in the same way as with g_variant_new().

This function is a convenience wrapper around WidgetClass#addShortcut and must be called during class initialization.

Parameters:

keyval - key value of binding to install

mods - key modifier of binding to install

actionName - the action to activate

formatString - GVariant format string for arguments or null for no arguments

varargs - arguments, as given by format string

addBindingSignal

public void addBindingSignal(int keyval,
 Set<ModifierType> mods,
 String signal,
 @Nullable
 @Nullable String formatString,
 Object... varargs)

Creates a new shortcut for this WidgetClass that emits the given action signal with arguments read according to formatString.

The arguments and format string must be provided in the same way as with g_variant_new().

This function is a convenience wrapper around WidgetClass#addShortcut and must be called during class initialization.

Parameters:

keyval - key value of binding to install

mods - key modifier of binding to install

signal - the signal to execute

formatString - GVariant format string for arguments or null for no arguments

varargs - arguments, as given by format string

addBindingSignal

public void addBindingSignal(int keyval,
 ModifierType mods,
 String signal,
 @Nullable
 @Nullable String formatString,
 Object... varargs)

Creates a new shortcut for this WidgetClass that emits the given action signal with arguments read according to formatString.

The arguments and format string must be provided in the same way as with g_variant_new().

This function is a convenience wrapper around WidgetClass#addShortcut and must be called during class initialization.

Parameters:

keyval - key value of binding to install

mods - key modifier of binding to install

signal - the signal to execute

formatString - GVariant format string for arguments or null for no arguments

varargs - arguments, as given by format string

addShortcut

public void addShortcut(Shortcut shortcut)

Installs a shortcut in this WidgetClass.

Every instance created for this WidgetClass or its subclasses will inherit this shortcut and trigger it.

Shortcuts added this way will be triggered in the PropagationPhase.BUBBLE phase, which means they may also trigger if child widgets have focus.

This function must only be used in class initialization functions otherwise it is not guaranteed that the shortcut will be installed.

Parameters:

shortcut - the GtkShortcut to add

bindTemplateCallbackFull

public void bindTemplateCallbackFull(String callbackName,
 Callback callbackSymbol)

Declares a callbackSymbol to handle callbackName from the template XML defined for widgetType.

This function is not supported after WidgetClass#setTemplateScope has been used on this WidgetClass. See BuilderCScope.addCallbackSymbol(java.lang.String, org.gnome.gobject.Callback).

Note that this must be called from a composite widget classes class initializer after calling WidgetClass#setTemplate.

Parameters:

callbackName - The name of the callback as expected in the template XML

callbackSymbol - The callback symbol

bindTemplateChildFull

public void bindTemplateChildFull(String name,
 boolean internalChild,
 long structOffset)

Automatically assign an object declared in the class template XML to be set to a location on a freshly built instance’s private data, or alternatively accessible via Widget.getTemplateChild(org.gnome.glib.Type, java.lang.String).

The struct can point either into the public instance, then you should use G_STRUCT_OFFSET(WidgetType, member) for structOffset, or in the private struct, then you should use G_PRIVATE_OFFSET(WidgetType, member).

An explicit strong reference will be held automatically for the duration of your instance’s life cycle, it will be released automatically when GObjectClass.dispose() runs on your instance and if a structOffset that is != 0 is specified, then the automatic location in your instance public or private data will be set to null. You can however access an automated child pointer the first time your classes GObjectClass.dispose() runs, or alternatively in Gtk.Widget::destroy.

If internalChild is specified, Buildable#getInternalChild will be automatically implemented by the GtkWidget class so there is no need to implement it manually.

The wrapper macros Gtk#widgetClassBindTemplateChild, Gtk#widgetClassBindTemplateChildInternal, Gtk#widgetClassBindTemplateChildPrivate and Gtk#widgetClassBindTemplateChildInternalPrivate might be more convenient to use.

Note that this must be called from a composite widget classes class initializer after calling WidgetClass#setTemplate.

Parameters:

name - The “id” of the child defined in the template XML

internalChild - Whether the child should be accessible as an “internal-child” when this class is used in GtkBuilder XML

structOffset - The structure offset into the composite widget’s instance public or private structure where the automated child pointer should be set, or 0 to not assign the pointer.

getAccessibleRole

public AccessibleRole getAccessibleRole()

Retrieves the accessible role used by the given GtkWidget class.

Different accessible roles have different states, and are rendered differently by assistive technologies.

See also: Accessible.getAccessibleRole().

Returns:

the accessible role for the widget class

getActivateSignal

public int getActivateSignal()

Retrieves the signal id for the activation signal.

the activation signal is set using WidgetClass#setActivateSignal.

Returns:

a signal id, or 0 if the widget class does not specify an activation signal

getCssName

public String getCssName()

Gets the name used by this class for matching in CSS code.

See WidgetClass#setCssName for details.

Returns:

the CSS name of the given class

getLayoutManagerType

public Type getLayoutManagerType()

Retrieves the type of the LayoutManager used by widgets of class this WidgetClass.

See also: WidgetClass#setLayoutManagerType.

Returns:

type of a GtkLayoutManager subclass, or G_TYPE_INVALID

installAction

public void installAction(String actionName,
 @Nullable
 @Nullable String parameterType,
 WidgetActionActivateFunc activate)

This should be called at class initialization time to specify actions to be added for all instances of this class.

Actions installed by this function are stateless. The only state they have is whether they are enabled or not (which can be changed with Widget.actionSetEnabled(java.lang.String, boolean)).

Parameters:

actionName - a prefixed action name, such as "clipboard.paste"

parameterType - the parameter type

activate - callback to use when the action is activated

installPropertyAction

public void installPropertyAction(String actionName,
 String propertyName)

Installs an action called actionName on this WidgetClass and binds its state to the value of the propertyName property.

This function will perform a few sanity checks on the property selected via propertyName. Namely, the property must exist, must be readable, writable and must not be construct-only. There are also restrictions on the type of the given property, it must be boolean, int, unsigned int, double or string. If any of these conditions are not met, a critical warning will be printed and no action will be added.

The state type of the action matches the property type.

If the property is boolean, the action will have no parameter and toggle the property value. Otherwise, the action will have a parameter of the same type as the property.

Parameters:

actionName - name of the action

propertyName - name of the property in instances of this WidgetClass or any parent class.

queryAction

public boolean queryAction(int index,
 Type owner,
 Out<String> actionName,
 @Nullable
 @Nullable Out<VariantType> parameterType,
 @Nullable
 @Nullable Out<String> propertyName)

Returns details about the index-th action that has been installed for this WidgetClass during class initialization.

See WidgetClass#installAction for details on how to install actions.

Note that this function will also return actions defined by parent classes. You can identify those by looking at owner.

Parameters:

index - position of the action to query

owner - return location for the type where the action was defined

actionName - return location for the action name

parameterType - return location for the parameter type

propertyName - return location for the property name

Returns:

true if the action was found, false if index is out of range

setAccessibleRole

public void setAccessibleRole(AccessibleRole accessibleRole)

Sets the accessible role used by the given GtkWidget class.

Different accessible roles have different states, and are rendered differently by assistive technologies.

Parameters:

accessibleRole - the GtkAccessibleRole used by the this WidgetClass

setActivateSignal

public void setActivateSignal(int signalId)

Sets the GtkWidgetClass.activate_signal field with the given signalId.

The signal will be emitted when calling Widget#activate.

The signalId must have been registered with g_signal_new() or g_signal_newv() before calling this function.

Parameters:

signalId - the id for the activate signal

setActivateSignalFromName

public void setActivateSignalFromName(String signalName)

Sets the GtkWidgetClass.activate_signal field with the signal id for the given signalName.

The signal will be emitted when calling Widget#activate.

The signalName of widgetType must have been registered with g_signal_new() or g_signal_newv() before calling this function.

Parameters:

signalName - the name of the activate signal of widgetType

setCssName

public void setCssName(String name)

Sets the name to be used for CSS matching of widgets.

If this function is not called for a given class, the name set on the parent class is used. By default, GtkWidget uses the name "widget".

Parameters:

name - name to use

setLayoutManagerType

public void setLayoutManagerType(Type type)

Sets the type to be used for creating layout managers for widgets of this WidgetClass.

The given type must be a subtype of LayoutManager.

This function should only be called from class init functions of widgets.

Parameters:

type - The object type that implements the GtkLayoutManager for this WidgetClass

setTemplate

public void setTemplate(Bytes templateBytes)

This should be called at class initialization time to specify the GtkBuilder XML to be used to extend a widget.

For convenience, WidgetClass#setTemplateFromResource is also provided.

Note that any class that installs templates must call Widget.initTemplate() in the widget’s instance initializer.

Parameters:

templateBytes - A GBytes holding the GtkBuilder XML

setTemplateFromResource

public void setTemplateFromResource(String resourceName)

A convenience function that calls WidgetClass#setTemplate with the contents of a GResource.

Note that any class that installs templates must call Widget.initTemplate() in the widget’s instance initializer.

Parameters:

resourceName - The name of the resource to load the template from

setTemplateScope

public void setTemplateScope(BuilderScope scope)

For use in language bindings, this will override the default GtkBuilderScope to be used when parsing GtkBuilder XML from this class’s template data.

Note that this must be called from a composite widget classes class initializer after calling WidgetClass#setTemplate.

Parameters:

scope - The GtkBuilderScope to use when loading the class template