Package org.gnome.gtk

Class Grid

java.lang.Object

org.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gobject.InitiallyUnowned

org.gnome.gtk.Widget

org.gnome.gtk.Grid

All Implemented Interfaces:

Accessible, Buildable, ConstraintTarget, Orientable, Proxy

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

Arranges its child widgets in rows and columns.

It supports arbitrary positions and horizontal/vertical spans.

Children are added using attach(org.gnome.gtk.Widget, int, int, int, int). They can span multiple rows or columns. It is also possible to add a child next to an existing child, using attachNextTo(org.gnome.gtk.Widget, org.gnome.gtk.Widget, org.gnome.gtk.PositionType, int, int). To remove a child from the grid, use remove(org.gnome.gtk.Widget).

The behaviour of GtkGrid when several children occupy the same grid cell is undefined.

GtkGrid as GtkBuildable
Every child in a GtkGrid has access to a custom Buildable element, called <layout>. It can by used to specify a position in the grid and optionally spans. All properties that can be used in the <layout> element are implemented by GridLayoutChild.

It is implemented by GtkWidget using LayoutManager.

To showcase it, here is a simple example:

<object class="GtkGrid" id="my_grid">
   <child>
     <object class="GtkButton" id="button1">
       <property name="label">Button 1</property>
       <layout>
         <property name="column">0</property>
         <property name="row">0</property>
       </layout>
     </object>
   </child>
   <child>
     <object class="GtkButton" id="button2">
       <property name="label">Button 2</property>
       <layout>
         <property name="column">1</property>
         <property name="row">0</property>
       </layout>
     </object>
   </child>
   <child>
     <object class="GtkButton" id="button3">
       <property name="label">Button 3</property>
       <layout>
         <property name="column">2</property>
         <property name="row">0</property>
         <property name="row-span">2</property>
       </layout>
     </object>
   </child>
   <child>
     <object class="GtkButton" id="button4">
       <property name="label">Button 4</property>
       <layout>
         <property name="column">0</property>
         <property name="row">1</property>
         <property name="column-span">2</property>
       </layout>
     </object>
   </child>
 </object>
 

It organizes the first two buttons side-by-side in one cell each. The third button is in the last column but spans across two rows. This is defined by the row-span property. The last button is located in the second row and spans across two columns, which is defined by the column-span property.

CSS nodes
GtkGrid uses a single CSS node with name grid.

Accessibility
Until GTK 4.10, GtkGrid used the Gtk.AccessibleRole.group role.

Starting from GTK 4.12, GtkGrid uses the Gtk.AccessibleRole.generic role.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Grid.Builder<B extends Grid.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static class	Grid.GridClass

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.Widget$Impl, Widget.WidgetClass

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.Accessible$Impl, Accessible.AccessibleInterface

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

Buildable.Buildable$Impl, Buildable.BuildableIface

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

ConstraintTarget.ConstraintTarget$Impl, ConstraintTarget.ConstraintTargetInterface

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

Orientable.Orientable$Impl, Orientable.OrientableIface

Constructor Summary

Constructors

Constructor	Description
Grid()	Creates a new Grid.
Grid(MemorySegment address)	Create a Grid proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
protected Grid	asParent()	Returns this instance as if it were its parent type.
void	attach(Widget child, int column, int row, int width, int height)	Adds a widget to the grid.
void	attachNextTo(Widget child, @Nullable Widget sibling, PositionType side, int width, int height)	Adds a widget to the grid.
static Grid.Builder<? extends Grid.Builder>	builder()	A Grid.Builder object constructs a Grid with the specified properties.
int	getBaselineRow()	Returns which row defines the global baseline of grid.
@Nullable Widget	getChildAt(int column, int row)	Gets the child of this Grid whose area covers the grid cell at column, row.
boolean	getColumnHomogeneous()	Returns whether all columns of this Grid have the same width.
int	getColumnSpacing()	Returns the amount of space between the columns of grid.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
BaselinePosition	getRowBaselinePosition(int row)	Returns the baseline position of row.
boolean	getRowHomogeneous()	Returns whether all rows of this Grid have the same height.
int	getRowSpacing()	Returns the amount of space between the rows of grid.
static @Nullable Type	getType()	Get the GType of the Grid class
void	insertColumn(int position)	Inserts a column at the specified position.
void	insertNextTo(Widget sibling, PositionType side)	Inserts a row or column at the specified position.
void	insertRow(int position)	Inserts a row at the specified position.
void	queryChild(Widget child, @Nullable Out<Integer> column, @Nullable Out<Integer> row, @Nullable Out<Integer> width, @Nullable Out<Integer> height)	Queries the attach points and spans of child inside the given GtkGrid.
void	remove(Widget child)	Removes a child from grid.
void	removeColumn(int position)	Removes a column from the grid.
void	removeRow(int position)	Removes a row from the grid.
void	setBaselineRow(int row)	Sets which row defines the global baseline for the entire grid.
void	setColumnHomogeneous(boolean homogeneous)	Sets whether all columns of this Grid will have the same width.
void	setColumnSpacing(int spacing)	Sets the amount of space between columns of grid.
void	setRowBaselinePosition(int row, BaselinePosition pos)	Sets how the baseline should be positioned on row of the grid, in case that row is assigned more space than is requested.
void	setRowHomogeneous(boolean homogeneous)	Sets whether all rows of this Grid will have the same height.
void	setRowSpacing(int spacing)	Sets the amount of space between rows of grid.

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, getLimitEvents, getMapped, getMarginBottom, getMarginEnd, getMarginStart, getMarginTop, 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, setLimitEvents, 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, cast, getPrivate, readGClass, writeGClass

Methods inherited from class org.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, updatePlatformState, updateProperty, updateRelation, updateState

Methods inherited from interface org.gnome.gtk.Buildable

getBuildableId

Methods inherited from interface org.gnome.gtk.Orientable

getOrientation, setOrientation

Methods inherited from interface org.javagi.base.Proxy

handle

Constructor Details

Grid

public Grid(MemorySegment address)

Create a Grid proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

Grid

public Grid()

Creates a new Grid.

Method Details

getType

public static @Nullable Type getType()

Get the GType of the Grid class

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

asParent

protected Grid 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

attach

public void attach(Widget child,
 int column,
 int row,
 int width,
 int height)

Adds a widget to the grid.

The position of child is determined by column and row. The number of “cells” that child will occupy is determined by width and height.

Parameters:

child - the widget to add

column - the column number to attach the left side of child to

row - the row number to attach the top side of child to

width - the number of columns that child will span

height - the number of rows that child will span

attachNextTo

public void attachNextTo(Widget child,
 @Nullable Widget sibling,
 PositionType side,
 int width,
 int height)

Adds a widget to the grid.

The widget is placed next to sibling, on the side determined by side. When sibling is null, the widget is placed in row (for left or right placement) or column 0 (for top or bottom placement), at the end indicated by side.

Attaching widgets labeled [1], [2], [3] with @sibling == %NULL and @side == %GTK_POS_LEFT yields a layout of [3][2][1].

Parameters:

child - the widget to add

sibling - the child of this Grid that child will be placed next to, or null to place child at the beginning or end

side - the side of sibling that child is positioned next to

width - the number of columns that child will span

height - the number of rows that child will span

getBaselineRow

public int getBaselineRow()

Returns which row defines the global baseline of grid.

Returns:

the row index defining the global baseline

getChildAt

public @Nullable Widget getChildAt(int column,
 int row)

Gets the child of this Grid whose area covers the grid cell at column, row.

Parameters:

column - the left edge of the cell

row - the top edge of the cell

Returns:

the child at the given position

getColumnHomogeneous

public boolean getColumnHomogeneous()

Returns whether all columns of this Grid have the same width.

Returns:

whether all columns of this Grid have the same width.

getColumnSpacing

public int getColumnSpacing()

Returns the amount of space between the columns of grid.

Returns:

the column spacing of this Grid

getRowBaselinePosition

public BaselinePosition getRowBaselinePosition(int row)

Returns the baseline position of row.

See setRowBaselinePosition(int, org.gnome.gtk.BaselinePosition).

Parameters:

row - a row index

Returns:

the baseline position of row

getRowHomogeneous

public boolean getRowHomogeneous()

Returns whether all rows of this Grid have the same height.

Returns:

whether all rows of this Grid have the same height.

getRowSpacing

public int getRowSpacing()

Returns the amount of space between the rows of grid.

Returns:

the row spacing of this Grid

insertColumn

public void insertColumn(int position)

Inserts a column at the specified position.

Children which are attached at or to the right of this position are moved one column to the right. Children which span across this position are grown to span the new column.

Parameters:

position - the position to insert the column at

insertNextTo

public void insertNextTo(Widget sibling,
 PositionType side)

Inserts a row or column at the specified position.

The new row or column is placed next to sibling, on the side determined by side. If side is PositionType.TOP or PositionType.BOTTOM, a row is inserted. If side is PositionType.LEFT of PositionType.RIGHT, a column is inserted.

Parameters:

sibling - the child of this Grid that the new row or column will be placed next to

side - the side of sibling that child is positioned next to

insertRow

public void insertRow(int position)

Inserts a row at the specified position.

Children which are attached at or below this position are moved one row down. Children which span across this position are grown to span the new row.

Parameters:

position - the position to insert the row at

queryChild

public void queryChild(Widget child,
 @Nullable Out<Integer> column,
 @Nullable Out<Integer> row,
 @Nullable Out<Integer> width,
 @Nullable Out<Integer> height)

Queries the attach points and spans of child inside the given GtkGrid.

Parameters:

child - a GtkWidget child of this Grid

column - the column used to attach the left side of child

row - the row used to attach the top side of child

width - the number of columns child spans

height - the number of rows child spans

remove

public void remove(Widget child)

Removes a child from grid.

The child must have been added with attach(org.gnome.gtk.Widget, int, int, int, int) or attachNextTo(org.gnome.gtk.Widget, org.gnome.gtk.Widget, org.gnome.gtk.PositionType, int, int).

Parameters:

child - the child widget to remove

removeColumn

public void removeColumn(int position)

Removes a column from the grid.

Children that are placed in this column are removed, spanning children that overlap this column have their width reduced by one, and children after the column are moved to the left.

Parameters:

position - the position of the column to remove

removeRow

public void removeRow(int position)

Removes a row from the grid.

Children that are placed in this row are removed, spanning children that overlap this row have their height reduced by one, and children below the row are moved up.

Parameters:

position - the position of the row to remove

setBaselineRow

public void setBaselineRow(int row)

Sets which row defines the global baseline for the entire grid.

Each row in the grid can have its own local baseline, but only one of those is global, meaning it will be the baseline in the parent of the grid.

Parameters:

row - the row index

setColumnHomogeneous

public void setColumnHomogeneous(boolean homogeneous)

Sets whether all columns of this Grid will have the same width.

Parameters:

homogeneous - true to make columns homogeneous

setColumnSpacing

public void setColumnSpacing(int spacing)

Sets the amount of space between columns of grid.

Parameters:

spacing - the amount of space to insert between columns

setRowBaselinePosition

public void setRowBaselinePosition(int row,
 BaselinePosition pos)

Sets how the baseline should be positioned on row of the grid, in case that row is assigned more space than is requested.

The default baseline position is BaselinePosition.CENTER.

Parameters:

row - a row index

pos - a GtkBaselinePosition

setRowHomogeneous

public void setRowHomogeneous(boolean homogeneous)

Sets whether all rows of this Grid will have the same height.

Parameters:

homogeneous - true to make rows homogeneous

setRowSpacing

public void setRowSpacing(int spacing)

Sets the amount of space between rows of grid.

Parameters:

spacing - the amount of space to insert between rows

builder

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

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

Returns:

the builder object