Package org.gnome.gtk

Class Notebook

java.lang.Object

io.github.jwharm.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gobject.InitiallyUnowned

org.gnome.gtk.Widget

org.gnome.gtk.Notebook

All Implemented Interfaces:

Proxy, Accessible, Buildable, ConstraintTarget

@Generated("io.github.jwharm.JavaGI")
public class Notebook
extends Widget
implements Accessible, Buildable, ConstraintTarget

GtkNotebook is a container whose children are pages switched between using tabs.

There are many configuration options for GtkNotebook. Among other things, you can choose on which edge the tabs appear (see setTabPos(org.gnome.gtk.PositionType)), whether, if there are too many tabs to fit the notebook should be made bigger or scrolling arrows added (see setScrollable(boolean)), and whether there will be a popup menu allowing the users to switch pages. (see popupEnable()).

GtkNotebook as GtkBuildable
The GtkNotebook implementation of the GtkBuildable interface supports placing children into tabs by specifying “tab” as the “type” attribute of a <child> element. Note that the content of the tab must be created before the tab can be filled. A tab child can be specified without specifying a <child> type attribute.

To add a child widget in the notebooks action area, specify "action-start" or “action-end” as the “type” attribute of the <child> element.

An example of a UI definition fragment with GtkNotebook:

<object class="GtkNotebook">
   <child>
     <object class="GtkLabel" id="notebook-content">
       <property name="label">Content</property>
     </object>
   </child>
   <child type="tab">
     <object class="GtkLabel" id="notebook-tab">
       <property name="label">Tab</property>
     </object>
   </child>
 </object>
 

Shortcuts and Gestures
GtkNotebook supports the following keyboard shortcuts:

• Shift+F10 or Menu opens the context menu.
• Home moves the focus to the first tab.
• End moves the focus to the last tab.

Additionally, the following signals have default keybindings:

• Gtk.Notebook::change-current-page
• Gtk.Notebook::focus-tab
• Gtk.Notebook::move-focus-out
• Gtk.Notebook::reorder-tab
• Gtk.Notebook::select-page

Tabs support drag-and-drop between notebooks sharing the same group-name, or to new windows by handling the ::create-window signal.

Actions
GtkNotebook defines a set of built-in actions:

• menu.popup opens the tabs context menu.

CSS nodes

 notebook
 ├── header.top
 │   ├── [<action widget>]
 │   ├── tabs
 │   │   ├── [arrow]
 │   │   ├── tab
 │   │   │   ╰── <tab label>
 ┊   ┊   ┊
 │   │   ├── tab[.reorderable-page]
 │   │   │   ╰── <tab label>
 │   │   ╰── [arrow]
 │   ╰── [<action widget>]
 │
 ╰── stack
     ├── <child>
     ┊
     ╰── <child>
 

GtkNotebook has a main CSS node with name notebook, a subnode with name header and below that a subnode with name tabs which contains one subnode per tab with name tab.

If action widgets are present, their CSS nodes are placed next to the tabs node. If the notebook is scrollable, CSS nodes with name arrow are placed as first and last child of the tabs node.

The main node gets the .frame style class when the notebook has a border (see setShowBorder(boolean)).

The header node gets one of the style class .top, .bottom, .left or .right, depending on where the tabs are placed. For reorderable pages, the tab node gets the .reorderable-page class.

A tab node gets the .dnd style class while it is moved with drag-and-drop.

The nodes are always arranged from left-to-right, regardless of text direction.

Accessibility
GtkNotebook uses the following roles:

• AccessibleRole.GROUP for the notebook widget
• AccessibleRole.TAB_LIST for the list of tabs
• AccessibleRole.TAB role for each tab
• AccessibleRole.TAB_PANEL for each page

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Notebook.Builder<B extends Notebook.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static interface	Notebook.ChangeCurrentPageCallback	Functional interface declaration of the ChangeCurrentPageCallback callback.
static interface	Notebook.CreateWindowCallback	Functional interface declaration of the CreateWindowCallback callback.
static interface	Notebook.FocusTabCallback	Functional interface declaration of the FocusTabCallback callback.
static interface	Notebook.MoveFocusOutCallback	Functional interface declaration of the MoveFocusOutCallback callback.
static interface	Notebook.PageAddedCallback	Functional interface declaration of the PageAddedCallback callback.
static interface	Notebook.PageRemovedCallback	Functional interface declaration of the PageRemovedCallback callback.
static interface	Notebook.PageReorderedCallback	Functional interface declaration of the PageReorderedCallback callback.
static interface	Notebook.ReorderTabCallback	Functional interface declaration of the ReorderTabCallback callback.
static interface	Notebook.SelectPageCallback	Functional interface declaration of the SelectPageCallback callback.
static interface	Notebook.SwitchPageCallback	Functional interface declaration of the SwitchPageCallback callback.

Nested classes/interfaces inherited from class org.gnome.gtk.Widget

Widget.DestroyCallback, Widget.DirectionChangedCallback, Widget.HideCallback, Widget.KeynavFailedCallback, Widget.MapCallback, Widget.MnemonicActivateCallback, Widget.MoveFocusCallback, Widget.QueryTooltipCallback, Widget.RealizeCallback, Widget.ShowCallback, Widget.StateFlagsChangedCallback, Widget.UnmapCallback, Widget.UnrealizeCallback, Widget.WidgetClass, Widget.WidgetImpl

Nested classes/interfaces inherited from class org.gnome.gobject.InitiallyUnowned

InitiallyUnowned.InitiallyUnownedClass

Nested classes/interfaces inherited from class org.gnome.gobject.GObject

GObject.NotifyCallback, GObject.ObjectClass

Nested classes/interfaces inherited from interface org.gnome.gtk.Accessible

Accessible.AccessibleImpl, Accessible.AccessibleInterface

Nested classes/interfaces inherited from interface org.gnome.gtk.Buildable

Buildable.BuildableIface, Buildable.BuildableImpl

Nested classes/interfaces inherited from interface org.gnome.gtk.ConstraintTarget

ConstraintTarget.ConstraintTargetImpl, ConstraintTarget.ConstraintTargetInterface

Constructor Summary

Constructors

Constructor	Description
Notebook()	Creates a new GtkNotebook widget with no pages.
Notebook(MemorySegment address)	Create a Notebook proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
int	appendPage(Widget child, @Nullable Widget tabLabel)	Appends a page to this Notebook.
int	appendPageMenu(Widget child, @Nullable Widget tabLabel, @Nullable Widget menuLabel)	Appends a page to this Notebook, specifying the widget to use as the label in the popup menu.
protected Notebook	asParent()	Returns this instance as if it were its parent type.
static Notebook.Builder<? extends Notebook.Builder>	builder()	A Notebook.Builder object constructs a Notebook with the specified properties.
void	detachTab(Widget child)	Removes the child from the notebook.
boolean	emitChangeCurrentPage(int page)	Emits the "change-current-page" signal.
Notebook	emitCreateWindow(Widget page)	Emits the "create-window" signal.
boolean	emitFocusTab(NotebookTab tab)	Emits the "focus-tab" signal.
void	emitMoveFocusOut(DirectionType direction)	Emits the "move-focus-out" signal.
void	emitPageAdded(Widget child, int pageNum)	Emits the "page-added" signal.
void	emitPageRemoved(Widget child, int pageNum)	Emits the "page-removed" signal.
void	emitPageReordered(Widget child, int pageNum)	Emits the "page-reordered" signal.
boolean	emitReorderTab(DirectionType direction, boolean moveToLast)	Emits the "reorder-tab" signal.
boolean	emitSelectPage(boolean moveFocus)	Emits the "select-page" signal.
void	emitSwitchPage(Widget page, int pageNum)	Emits the "switch-page" signal.
Widget	getActionWidget(PackType packType)	Gets one of the action widgets.
int	getCurrentPage()	Returns the page number of the current page.
String	getGroupName()	Gets the current group name for this Notebook.
Widget	getMenuLabel(Widget child)	Retrieves the menu label widget of the page containing child.
String	getMenuLabelText(Widget child)	Retrieves the text of the menu label for the page containing child.
int	getNPages()	Gets the number of pages in a notebook.
Widget	getNthPage(int pageNum)	Returns the child widget contained in page number pageNum.
NotebookPage	getPage(Widget child)	Returns the GtkNotebookPage for child.
ListModel	getPages()	Returns a GListModel that contains the pages of the notebook.
boolean	getScrollable()	Returns whether the tab label area has arrows for scrolling.
boolean	getShowBorder()	Returns whether a bevel will be drawn around the notebook pages.
boolean	getShowTabs()	Returns whether the tabs of the notebook are shown.
boolean	getTabDetachable(Widget child)	Returns whether the tab contents can be detached from this Notebook.
Widget	getTabLabel(Widget child)	Returns the tab label widget for the page child.
String	getTabLabelText(Widget child)	Retrieves the text of the tab label for the page containing child.
PositionType	getTabPos()	Gets the edge at which the tabs are drawn.
boolean	getTabReorderable(Widget child)	Gets whether the tab can be reordered via drag and drop or not.
static Type	getType()	Get the GType of the Notebook class
int	insertPage(Widget child, @Nullable Widget tabLabel, int position)	Insert a page into this Notebook at the given position.
int	insertPageMenu(Widget child, @Nullable Widget tabLabel, @Nullable Widget menuLabel, int position)	Insert a page into this Notebook at the given position, specifying the widget to use as the label in the popup menu.
void	nextPage()	Switches to the next page.
SignalConnection<Notebook.ChangeCurrentPageCallback>	onChangeCurrentPage(Notebook.ChangeCurrentPageCallback handler)	Emitted when the current page should be changed.
SignalConnection<Notebook.CreateWindowCallback>	onCreateWindow(Notebook.CreateWindowCallback handler)	The ::create-window signal is emitted when a detachable tab is dropped on the root window.
SignalConnection<Notebook.FocusTabCallback>	onFocusTab(Notebook.FocusTabCallback handler)	Emitted when a tab should be focused.
SignalConnection<Notebook.MoveFocusOutCallback>	onMoveFocusOut(Notebook.MoveFocusOutCallback handler)	Emitted when focus was moved out.
SignalConnection<Notebook.PageAddedCallback>	onPageAdded(Notebook.PageAddedCallback handler)	the ::page-added signal is emitted in the notebook right after a page is added to the notebook.
SignalConnection<Notebook.PageRemovedCallback>	onPageRemoved(Notebook.PageRemovedCallback handler)	the ::page-removed signal is emitted in the notebook right after a page is removed from the notebook.
SignalConnection<Notebook.PageReorderedCallback>	onPageReordered(Notebook.PageReorderedCallback handler)	the ::page-reordered signal is emitted in the notebook right after a page has been reordered.
SignalConnection<Notebook.ReorderTabCallback>	onReorderTab(Notebook.ReorderTabCallback handler)	Emitted when the tab should be reordered.
SignalConnection<Notebook.SelectPageCallback>	onSelectPage(Notebook.SelectPageCallback handler)	Emitted when a page should be selected.
SignalConnection<Notebook.SwitchPageCallback>	onSwitchPage(Notebook.SwitchPageCallback handler)	Emitted when the user or a function changes the current page.
int	pageNum(Widget child)	Finds the index of the page which contains the given child widget.
void	popupDisable()	Disables the popup menu.
void	popupEnable()	Enables the popup menu.
int	prependPage(Widget child, @Nullable Widget tabLabel)	Prepends a page to this Notebook.
int	prependPageMenu(Widget child, @Nullable Widget tabLabel, @Nullable Widget menuLabel)	Prepends a page to this Notebook, specifying the widget to use as the label in the popup menu.
void	prevPage()	Switches to the previous page.
void	removePage(int pageNum)	Removes a page from the notebook given its index in the notebook.
void	reorderChild(Widget child, int position)	Reorders the page containing child, so that it appears in position position.
void	setActionWidget(Widget widget, PackType packType)	Sets widget as one of the action widgets.
void	setCurrentPage(int pageNum)	Switches to the page number pageNum.
void	setGroupName(@Nullable String groupName)	Sets a group name for this Notebook.
void	setMenuLabel(Widget child, @Nullable Widget menuLabel)	Changes the menu label for the page containing child.
void	setMenuLabelText(Widget child, String menuText)	Creates a new label and sets it as the menu label of child.
void	setScrollable(boolean scrollable)	Sets whether the tab label area will have arrows for scrolling if there are too many tabs to fit in the area.
void	setShowBorder(boolean showBorder)	Sets whether a bevel will be drawn around the notebook pages.
void	setShowTabs(boolean showTabs)	Sets whether to show the tabs for the notebook or not.
void	setTabDetachable(Widget child, boolean detachable)	Sets whether the tab can be detached from this Notebook to another notebook or widget.
void	setTabLabel(Widget child, @Nullable Widget tabLabel)	Changes the tab label for child.
void	setTabLabelText(Widget child, String tabText)	Creates a new label and sets it as the tab label for the page containing child.
void	setTabPos(PositionType pos)	Sets the edge at which the tabs are drawn.
void	setTabReorderable(Widget child, boolean reorderable)	Sets whether the notebook tab can be reordered via drag and drop or not.

Methods inherited from class org.gnome.gtk.Widget

actionSetEnabled, activateActionIfExists, activateDefault, activateWidget, addController, addCssClass, addMnemonicLabel, addTickCallback, allocate, childFocus, computeBounds, computeExpand, computeExpand, computePoint, computeTransform, contains, createPangoContext, createPangoLayout, cssChanged, directionChanged, disposeTemplate, dragCheckThreshold, emitDestroy, emitDirectionChanged, emitHide, emitKeynavFailed, emitMap, emitMnemonicActivate, emitMoveFocus, emitQueryTooltip, emitRealize, emitShow, emitStateFlagsChanged, emitUnmap, emitUnrealize, errorBell, focus, getAllocatedBaseline, getAllocatedHeight, getAllocatedWidth, getAllocation, getAncestor, getBaseline, getCanFocus, getCanTarget, getChildVisible, getClipboard, getColor, getCssClasses, getCssName, getCursor, getDefaultDirection, getDirection, getDisplay, getFirstChild, getFocusable, getFocusChild, getFocusOnClick, getFontMap, getFontOptions, getFrameClock, getHalign, getHasTooltip, getHeight, getHexpand, getHexpandSet, getLastChild, getLayoutManager, getMapped, getMarginBottom, getMarginEnd, getMarginStart, getMarginTop, getMemoryLayout, getName, getNative, getNextSibling, getOpacity, getOverflow, getPangoContext, getParent, getPreferredSize, getPrevSibling, getPrimaryClipboard, getRealized, getReceivesDefault, getRequestMode, getRoot, getScaleFactor, getSensitive, getSettings, getSize, getSizeRequest, getStateFlags, getStyleContext, getTemplateChild, getTooltipMarkup, getTooltipText, getValign, getVexpand, getVexpandSet, getVisible, getWidth, grabFocus, hasCssClass, hasDefault, hasFocus, hasVisibleFocus, hide, inDestruction, initTemplate, insertActionGroup, insertAfter, insertBefore, isAncestor, isDrawable, isFocus, isSensitive, isVisible, keynavFailed, listMnemonicLabels, map, measure, mnemonicActivate, moveFocus, observeChildren, observeControllers, onDestroy, onDirectionChanged, onHide, onKeynavFailed, onMap, onMnemonicActivate, onMoveFocus, onQueryTooltip, onRealize, onShow, onStateFlagsChanged, onUnmap, onUnrealize, pick, pick, queryTooltip, queueAllocate, queueDraw, queueResize, realize, removeController, removeCssClass, removeMnemonicLabel, removeTickCallback, root, setCanFocus, setCanTarget, setChildVisible, setCssClasses, setCursor, setCursorFromName, setDefaultDirection, setDirection, setFocusable, setFocusChild, setFocusOnClick, setFontMap, setFontOptions, setHalign, setHasTooltip, setHexpand, setHexpandSet, setLayoutManager, setMarginBottom, setMarginEnd, setMarginStart, setMarginTop, setName, setOpacity, setOverflow, setParent, setReceivesDefault, setSensitive, setSizeRequest, setStateFlags, setStateFlags, setTooltipMarkup, setTooltipText, setValign, setVexpand, setVexpandSet, setVisible, shouldLayout, show, sizeAllocate, sizeAllocate, snapshot, snapshotChild, stateFlagsChanged, systemSettingChanged, translateCoordinates, triggerTooltipQuery, unmap, unparent, unrealize, unroot, unsetStateFlags, unsetStateFlags

Methods inherited from class org.gnome.gobject.GObject

addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newv, notify, notify, notifyByPspec, onNotify, ref, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref, withProperties

Methods inherited from class org.gnome.gobject.TypeInstance

callParent, callParent, getPrivate, readGClass, writeGClass

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

Methods inherited from interface org.gnome.gtk.Accessible

announce, getAccessibleParent, getAccessibleRole, getAtContext, getBounds, getFirstAccessibleChild, getNextAccessibleSibling, getPlatformState, resetProperty, resetRelation, resetState, setAccessibleParent, updateNextAccessibleSibling, updateProperty, updateRelation, updateState

Methods inherited from interface org.gnome.gtk.Buildable

getBuildableId

Methods inherited from interface io.github.jwharm.javagi.base.Proxy

handle

Constructor Details

Notebook

public Notebook(MemorySegment address)

Create a Notebook proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

Notebook

public Notebook()

Creates a new GtkNotebook widget with no pages.

Method Details

getType

public static Type getType()

Get the GType of the Notebook class

Returns:

the GType

asParent

protected Notebook asParent()

Returns this instance as if it were its parent type. This is mostly synonymous to the Java super keyword, but will set the native typeclass function pointers to the parent type. When overriding a native virtual method in Java, "chaining up" with super.methodName() doesn't work, because it invokes the overridden function pointer again. To chain up, call asParent().methodName(). This will call the native function pointer of this virtual method in the typeclass of the parent type.

Overrides:

asParent in class Widget

appendPage

public int appendPage(Widget child,
 @Nullable
 @Nullable Widget tabLabel)

Appends a page to this Notebook.

Parameters:

child - the GtkWidget to use as the contents of the page

tabLabel - the GtkWidget to be used as the label for the page, or null to use the default label, “page N”

Returns:

the index (starting from 0) of the appended page in the notebook, or -1 if function fails

appendPageMenu

public int appendPageMenu(Widget child,
 @Nullable
 @Nullable Widget tabLabel,
 @Nullable
 @Nullable Widget menuLabel)

Appends a page to this Notebook, specifying the widget to use as the label in the popup menu.

Parameters:

child - the GtkWidget to use as the contents of the page

tabLabel - the GtkWidget to be used as the label for the page, or null to use the default label, “page N”

menuLabel - the widget to use as a label for the page-switch menu, if that is enabled. If null, and tabLabel is a GtkLabel or null, then the menu label will be a newly created label with the same text as tabLabel; if tabLabel is not a GtkLabel, menuLabel must be specified if the page-switch menu is to be used.

Returns:

the index (starting from 0) of the appended page in the notebook, or -1 if function fails

detachTab

public void detachTab(Widget child)

Removes the child from the notebook.

This function is very similar to removePage(int), but additionally informs the notebook that the removal is happening as part of a tab DND operation, which should not be cancelled.

Parameters:

child - a child

getActionWidget

public Widget getActionWidget(PackType packType)

Gets one of the action widgets.

See setActionWidget(org.gnome.gtk.Widget, org.gnome.gtk.PackType).

Parameters:

packType - pack type of the action widget to receive

Returns:

The action widget with the given packType or null when this action widget has not been set

getCurrentPage

public int getCurrentPage()

Returns the page number of the current page.

Returns:

the index (starting from 0) of the current page in the notebook. If the notebook has no pages, then -1 will be returned.

getGroupName

public String getGroupName()

Gets the current group name for this Notebook.

Returns:

the group name, or null if none is set

getMenuLabel

public Widget getMenuLabel(Widget child)

Retrieves the menu label widget of the page containing child.

Parameters:

child - a widget contained in a page of this Notebook

Returns:

the menu label, or null if the notebook page does not have a menu label other than the default (the tab label).

getMenuLabelText

public String getMenuLabelText(Widget child)

Retrieves the text of the menu label for the page containing child.

Parameters:

child - the child widget of a page of the notebook.

Returns:

the text of the tab label, or null if the widget does not have a menu label other than the default menu label, or the menu label widget is not a GtkLabel. The string is owned by the widget and must not be freed.

getNPages

public int getNPages()

Gets the number of pages in a notebook.

Returns:

the number of pages in the notebook

getNthPage

public Widget getNthPage(int pageNum)

Returns the child widget contained in page number pageNum.

Parameters:

pageNum - the index of a page in the notebook, or -1 to get the last page

Returns:

the child widget, or null if pageNum is out of bounds

getPage

public NotebookPage getPage(Widget child)

Returns the GtkNotebookPage for child.

Parameters:

child - a child of this Notebook

Returns:

the GtkNotebookPage for child

getPages

public ListModel getPages()

Returns a GListModel that contains the pages of the notebook.

This can be used to keep an up-to-date view. The model also implements SelectionModel and can be used to track and modify the visible page.

Returns:

a GListModel for the notebook's children

getScrollable

public boolean getScrollable()

Returns whether the tab label area has arrows for scrolling.

Returns:

true if arrows for scrolling are present

getShowBorder

public boolean getShowBorder()

Returns whether a bevel will be drawn around the notebook pages.

Returns:

true if the bevel is drawn

getShowTabs

public boolean getShowTabs()

Returns whether the tabs of the notebook are shown.

Returns:

true if the tabs are shown

getTabDetachable

public boolean getTabDetachable(Widget child)

Returns whether the tab contents can be detached from this Notebook.

Parameters:

child - a child GtkWidget

Returns:

true if the tab is detachable.

getTabLabel

public Widget getTabLabel(Widget child)

Returns the tab label widget for the page child.

null is returned if child is not in this Notebook or if no tab label has specifically been set for child.

Parameters:

child - the page

Returns:

the tab label

getTabLabelText

public String getTabLabelText(Widget child)

Retrieves the text of the tab label for the page containing child.

Parameters:

child - a widget contained in a page of this Notebook

Returns:

the text of the tab label, or null if the tab label widget is not a GtkLabel. The string is owned by the widget and must not be freed.

getTabPos

public PositionType getTabPos()

Gets the edge at which the tabs are drawn.

Returns:

the edge at which the tabs are drawn

getTabReorderable

public boolean getTabReorderable(Widget child)

Gets whether the tab can be reordered via drag and drop or not.

Parameters:

child - a child GtkWidget

Returns:

true if the tab is reorderable.

insertPage

public int insertPage(Widget child,
 @Nullable
 @Nullable Widget tabLabel,
 int position)

Insert a page into this Notebook at the given position.

Parameters:

child - the GtkWidget to use as the contents of the page

tabLabel - the GtkWidget to be used as the label for the page, or null to use the default label, “page N”

position - the index (starting at 0) at which to insert the page, or -1 to append the page after all other pages

Returns:

the index (starting from 0) of the inserted page in the notebook, or -1 if function fails

insertPageMenu

public int insertPageMenu(Widget child,
 @Nullable
 @Nullable Widget tabLabel,
 @Nullable
 @Nullable Widget menuLabel,
 int position)

Insert a page into this Notebook at the given position, specifying the widget to use as the label in the popup menu.

Parameters:

child - the GtkWidget to use as the contents of the page

tabLabel - the GtkWidget to be used as the label for the page, or null to use the default label, “page N”

menuLabel - the widget to use as a label for the page-switch menu, if that is enabled. If null, and tabLabel is a GtkLabel or null, then the menu label will be a newly created label with the same text as tabLabel; if tabLabel is not a GtkLabel, menuLabel must be specified if the page-switch menu is to be used.

position - the index (starting at 0) at which to insert the page, or -1 to append the page after all other pages.

Returns:

the index (starting from 0) of the inserted page in the notebook

nextPage

public void nextPage()

Switches to the next page.

Nothing happens if the current page is the last page.

pageNum

public int pageNum(Widget child)

Finds the index of the page which contains the given child widget.

Parameters:

child - a GtkWidget

Returns:

the index of the page containing child, or -1 if child is not in the notebook

popupDisable

public void popupDisable()

Disables the popup menu.

popupEnable

public void popupEnable()

Enables the popup menu.

If the user clicks with the right mouse button on the tab labels, a menu with all the pages will be popped up.

prependPage

public int prependPage(Widget child,
 @Nullable
 @Nullable Widget tabLabel)

Prepends a page to this Notebook.

Parameters:

child - the GtkWidget to use as the contents of the page

tabLabel - the GtkWidget to be used as the label for the page, or null to use the default label, “page N”

Returns:

the index (starting from 0) of the prepended page in the notebook, or -1 if function fails

prependPageMenu

public int prependPageMenu(Widget child,
 @Nullable
 @Nullable Widget tabLabel,
 @Nullable
 @Nullable Widget menuLabel)

Prepends a page to this Notebook, specifying the widget to use as the label in the popup menu.

Parameters:

child - the GtkWidget to use as the contents of the page

tabLabel - the GtkWidget to be used as the label for the page, or null to use the default label, “page N”

menuLabel - the widget to use as a label for the page-switch menu, if that is enabled. If null, and tabLabel is a GtkLabel or null, then the menu label will be a newly created label with the same text as tabLabel; if tabLabel is not a GtkLabel, menuLabel must be specified if the page-switch menu is to be used.

Returns:

the index (starting from 0) of the prepended page in the notebook, or -1 if function fails

prevPage

public void prevPage()

Switches to the previous page.

Nothing happens if the current page is the first page.

removePage

public void removePage(int pageNum)

Removes a page from the notebook given its index in the notebook.

Parameters:

pageNum - the index of a notebook page, starting from 0. If -1, the last page will be removed.

reorderChild

public void reorderChild(Widget child,
 int position)

Reorders the page containing child, so that it appears in position position.

If position is greater than or equal to the number of children in the list or negative, child will be moved to the end of the list.

Parameters:

child - the child to move

position - the new position, or -1 to move to the end

setActionWidget

public void setActionWidget(Widget widget,
 PackType packType)

Sets widget as one of the action widgets.

Depending on the pack type the widget will be placed before or after the tabs. You can use a GtkBox if you need to pack more than one widget on the same side.

Parameters:

widget - a GtkWidget

packType - pack type of the action widget

setCurrentPage

public void setCurrentPage(int pageNum)

Switches to the page number pageNum.

Note that due to historical reasons, GtkNotebook refuses to switch to a page unless the child widget is visible. Therefore, it is recommended to show child widgets before adding them to a notebook.

Parameters:

pageNum - index of the page to switch to, starting from 0. If negative, the last page will be used. If greater than the number of pages in the notebook, nothing will be done.

setGroupName

public void setGroupName(@Nullable
 @Nullable String groupName)

Sets a group name for this Notebook.

Notebooks with the same name will be able to exchange tabs via drag and drop. A notebook with a null group name will not be able to exchange tabs with any other notebook.

Parameters:

groupName - the name of the notebook group, or null to unset it

setMenuLabel

public void setMenuLabel(Widget child,
 @Nullable
 @Nullable Widget menuLabel)

Changes the menu label for the page containing child.

Parameters:

child - the child widget

menuLabel - the menu label, or null for default

setMenuLabelText

public void setMenuLabelText(Widget child,
 String menuText)

Creates a new label and sets it as the menu label of child.

Parameters:

child - the child widget

menuText - the label text

setScrollable

public void setScrollable(boolean scrollable)

Sets whether the tab label area will have arrows for scrolling if there are too many tabs to fit in the area.

Parameters:

scrollable - true if scroll arrows should be added

setShowBorder

public void setShowBorder(boolean showBorder)

Sets whether a bevel will be drawn around the notebook pages.

This only has a visual effect when the tabs are not shown.

Parameters:

showBorder - true if a bevel should be drawn around the notebook

setShowTabs

public void setShowTabs(boolean showTabs)

Sets whether to show the tabs for the notebook or not.

Parameters:

showTabs - true if the tabs should be shown

setTabDetachable

public void setTabDetachable(Widget child,
 boolean detachable)

Sets whether the tab can be detached from this Notebook to another notebook or widget.

Note that two notebooks must share a common group identifier (see setGroupName(java.lang.String)) to allow automatic tabs interchange between them.

If you want a widget to interact with a notebook through DnD (i.e.: accept dragged tabs from it) it must be set as a drop destination by adding to it a DropTarget controller that accepts the GType GTK_TYPE_NOTEBOOK_PAGE. The :value of said drop target will be preloaded with a NotebookPage object that corresponds to the dropped tab, so you can process the value via ::accept or ::drop signals.

Note that you should use detachTab(org.gnome.gtk.Widget) instead of removePage(int) if you want to remove the tab from the source notebook as part of accepting a drop. Otherwise, the source notebook will think that the dragged tab was removed from underneath the ongoing drag operation, and will initiate a drag cancel animation.

static void
 on_drag_data_received (GtkWidget        *widget,
                        GdkDrop          *drop,
                        GtkSelectionData *data,
                        guint             time,
                        gpointer          user_data)
 {
   GtkDrag *drag;
   GtkWidget *notebook;
   GtkWidget **child;

   drag = gtk_drop_get_drag (drop);
   notebook = g_object_get_data (drag, "gtk-notebook-drag-origin");
   child = (void*) gtk_selection_data_get_data (data);

   // process_widget (*child);

   gtk_notebook_detach_tab (GTK_NOTEBOOK (notebook), *child);
 }
 

If you want a notebook to accept drags from other widgets, you will have to set your own DnD code to do it.

Parameters:

child - a child GtkWidget

detachable - whether the tab is detachable or not

setTabLabel

public void setTabLabel(Widget child,
 @Nullable
 @Nullable Widget tabLabel)

Changes the tab label for child.

If null is specified for tabLabel, then the page will have the label “page N”.

Parameters:

child - the page

tabLabel - the tab label widget to use, or null for default tab label

setTabLabelText

public void setTabLabelText(Widget child,
 String tabText)

Creates a new label and sets it as the tab label for the page containing child.

Parameters:

child - the page

tabText - the label text

setTabPos

public void setTabPos(PositionType pos)

Sets the edge at which the tabs are drawn.

Parameters:

pos - the edge to draw the tabs at

setTabReorderable

public void setTabReorderable(Widget child,
 boolean reorderable)

Sets whether the notebook tab can be reordered via drag and drop or not.

Parameters:

child - a child GtkWidget

reorderable - whether the tab is reorderable or not

onChangeCurrentPage

public SignalConnection<Notebook.ChangeCurrentPageCallback> onChangeCurrentPage(Notebook.ChangeCurrentPageCallback handler)

Emitted when the current page should be changed.

The default bindings for this signal are Ctrl+Alt+PgUp, Ctrl+Alt+PgDn, Ctrl+PgUp and Ctrl+PgDn.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.ChangeCurrentPageCallback.run(int)

emitChangeCurrentPage

public boolean emitChangeCurrentPage(int page)

Emits the "change-current-page" signal. See onChangeCurrentPage(org.gnome.gtk.Notebook.ChangeCurrentPageCallback).

onCreateWindow

public SignalConnection<Notebook.CreateWindowCallback> onCreateWindow(Notebook.CreateWindowCallback handler)

The ::create-window signal is emitted when a detachable tab is dropped on the root window.

A handler for this signal can create a window containing a notebook where the tab will be attached. It is also responsible for moving/resizing the window and adding the necessary properties to the notebook (e.g. the GtkNotebook:group-name ).

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.CreateWindowCallback.run(org.gnome.gtk.Widget)

emitCreateWindow

public Notebook emitCreateWindow(Widget page)

Emits the "create-window" signal. See onCreateWindow(org.gnome.gtk.Notebook.CreateWindowCallback).

onFocusTab

public SignalConnection<Notebook.FocusTabCallback> onFocusTab(Notebook.FocusTabCallback handler)

Emitted when a tab should be focused.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.FocusTabCallback.run(org.gnome.gtk.NotebookTab)

emitFocusTab

public boolean emitFocusTab(NotebookTab tab)

Emits the "focus-tab" signal. See onFocusTab(org.gnome.gtk.Notebook.FocusTabCallback).

onMoveFocusOut

public SignalConnection<Notebook.MoveFocusOutCallback> onMoveFocusOut(Notebook.MoveFocusOutCallback handler)

Emitted when focus was moved out.

The default bindings for this signal are Ctrl+Tab, Ctrl+Shift+Tab, Ctrl+←, Ctrl+→, Ctrl+↑ and Ctrl+↓.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.MoveFocusOutCallback.run(org.gnome.gtk.DirectionType)

emitMoveFocusOut

public void emitMoveFocusOut(DirectionType direction)

Emits the "move-focus-out" signal. See onMoveFocusOut(org.gnome.gtk.Notebook.MoveFocusOutCallback).

onPageAdded

public SignalConnection<Notebook.PageAddedCallback> onPageAdded(Notebook.PageAddedCallback handler)

the ::page-added signal is emitted in the notebook right after a page is added to the notebook.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.PageAddedCallback.run(org.gnome.gtk.Widget, int)

emitPageAdded

public void emitPageAdded(Widget child,
 int pageNum)

Emits the "page-added" signal. See onPageAdded(org.gnome.gtk.Notebook.PageAddedCallback).

onPageRemoved

public SignalConnection<Notebook.PageRemovedCallback> onPageRemoved(Notebook.PageRemovedCallback handler)

the ::page-removed signal is emitted in the notebook right after a page is removed from the notebook.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.PageRemovedCallback.run(org.gnome.gtk.Widget, int)

emitPageRemoved

public void emitPageRemoved(Widget child,
 int pageNum)

Emits the "page-removed" signal. See onPageRemoved(org.gnome.gtk.Notebook.PageRemovedCallback).

onPageReordered

public SignalConnection<Notebook.PageReorderedCallback> onPageReordered(Notebook.PageReorderedCallback handler)

the ::page-reordered signal is emitted in the notebook right after a page has been reordered.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.PageReorderedCallback.run(org.gnome.gtk.Widget, int)

emitPageReordered

public void emitPageReordered(Widget child,
 int pageNum)

Emits the "page-reordered" signal. See onPageReordered(org.gnome.gtk.Notebook.PageReorderedCallback).

onReorderTab

public SignalConnection<Notebook.ReorderTabCallback> onReorderTab(Notebook.ReorderTabCallback handler)

Emitted when the tab should be reordered.

The default bindings for this signal are Alt+Home, Alt+End, Alt+PgUp, Alt+PgDn, Alt+←, Alt+→, Alt+↑ and Alt+↓.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.ReorderTabCallback.run(org.gnome.gtk.DirectionType, boolean)

emitReorderTab

public boolean emitReorderTab(DirectionType direction,
 boolean moveToLast)

Emits the "reorder-tab" signal. See onReorderTab(org.gnome.gtk.Notebook.ReorderTabCallback).

onSelectPage

public SignalConnection<Notebook.SelectPageCallback> onSelectPage(Notebook.SelectPageCallback handler)

Emitted when a page should be selected.

The default binding for this signal is ␣.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.SelectPageCallback.run(boolean)

emitSelectPage

public boolean emitSelectPage(boolean moveFocus)

Emits the "select-page" signal. See onSelectPage(org.gnome.gtk.Notebook.SelectPageCallback).

onSwitchPage

public SignalConnection<Notebook.SwitchPageCallback> onSwitchPage(Notebook.SwitchPageCallback handler)

Emitted when the user or a function changes the current page.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• Notebook.SwitchPageCallback.run(org.gnome.gtk.Widget, int)

emitSwitchPage

public void emitSwitchPage(Widget page,
 int pageNum)

Emits the "switch-page" signal. See onSwitchPage(org.gnome.gtk.Notebook.SwitchPageCallback).

builder

public static Notebook.Builder<? extends Notebook.Builder> builder()

A Notebook.Builder object constructs a Notebook with the specified properties. Use the various set...() methods to set properties, and finish construction with Notebook.Builder.build().