Package org.gnome.gtk

Class TextView

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.TextView

All Implemented Interfaces:

Proxy, Accessible, AccessibleText, Buildable, ConstraintTarget, Scrollable

Direct Known Subclasses:

View

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

A widget that displays the contents of a TextBuffer.

You may wish to begin by reading the conceptual overview, which gives an overview of all the objects and data types related to the text widget and how they work together.

Shortcuts and Gestures
GtkTextView supports the following keyboard shortcuts:

• Shift+F10 or Menu opens the context menu.
• Ctrl+Z undoes the last modification.
• Ctrl+Y or Ctrl+Shift+Z redoes the last undone modification.

Additionally, the following signals have default keybindings:

• Gtk.TextView::backspace
• Gtk.TextView::copy-clipboard
• Gtk.TextView::cut-clipboard
• Gtk.TextView::delete-from-cursor
• Gtk.TextView::insert-emoji
• Gtk.TextView::move-cursor
• Gtk.TextView::paste-clipboard
• Gtk.TextView::select-all
• Gtk.TextView::toggle-cursor-visible
• Gtk.TextView::toggle-overwrite

Actions
GtkTextView defines a set of built-in actions:

• clipboard.copy copies the contents to the clipboard.
• clipboard.cut copies the contents to the clipboard and deletes it from the widget.
• clipboard.paste inserts the contents of the clipboard into the widget.
• menu.popup opens the context menu.
• misc.insert-emoji opens the Emoji chooser.
• selection.delete deletes the current selection.
• selection.select-all selects all of the widgets content.
• text.redo redoes the last change to the contents.
• text.undo undoes the last change to the contents.

CSS nodes

 textview.view
 ├── border.top
 ├── border.left
 ├── text
 │   ╰── [selection]
 ├── border.right
 ├── border.bottom
 ╰── [window.popup]
 

GtkTextView has a main css node with name textview and style class .view, and subnodes for each of the border windows, and the main text area, with names border and text, respectively. The border nodes each get one of the style classes .left, .right, .top or .bottom.

A node representing the selection will appear below the text node.

If a context menu is opened, the window node will appear as a subnode of the main node.

Accessibility
GtkTextView uses the AccessibleRole.TEXT_BOX role.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	TextView.BackspaceCallback	Functional interface declaration of the BackspaceCallback callback.
static class	TextView.Builder<B extends TextView.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static interface	TextView.CopyClipboardCallback	Functional interface declaration of the CopyClipboardCallback callback.
static interface	TextView.CutClipboardCallback	Functional interface declaration of the CutClipboardCallback callback.
static interface	TextView.DeleteFromCursorCallback	Functional interface declaration of the DeleteFromCursorCallback callback.
static interface	TextView.ExtendSelectionCallback	Functional interface declaration of the ExtendSelectionCallback callback.
static interface	TextView.InsertAtCursorCallback	Functional interface declaration of the InsertAtCursorCallback callback.
static interface	TextView.InsertEmojiCallback	Functional interface declaration of the InsertEmojiCallback callback.
static interface	TextView.MoveCursorCallback	Functional interface declaration of the MoveCursorCallback callback.
static interface	TextView.MoveViewportCallback	Functional interface declaration of the MoveViewportCallback callback.
static interface	TextView.PasteClipboardCallback	Functional interface declaration of the PasteClipboardCallback callback.
static interface	TextView.PreeditChangedCallback	Functional interface declaration of the PreeditChangedCallback callback.
static interface	TextView.SelectAllCallback	Functional interface declaration of the SelectAllCallback callback.
static interface	TextView.SetAnchorCallback	Functional interface declaration of the SetAnchorCallback callback.
static class	TextView.TextViewClass
static interface	TextView.ToggleCursorVisibleCallback	Functional interface declaration of the ToggleCursorVisibleCallback callback.
static interface	TextView.ToggleOverwriteCallback	Functional interface declaration of the ToggleOverwriteCallback 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.AccessibleText

AccessibleText.AccessibleTextImpl, AccessibleText.AccessibleTextInterface

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

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

Scrollable.ScrollableImpl, Scrollable.ScrollableInterface

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
void	addChildAtAnchor(Widget child, TextChildAnchor anchor)	Adds a child widget in the text buffer, at the given anchor.
void	addOverlay(Widget child, int xpos, int ypos)	Adds child at a fixed coordinate in the GtkTextView's text window.
protected TextView	asParent()	Returns this instance as if it were its parent type.
protected void	backspace()	The class handler for the GtkTextView::backspace keybinding signal.
boolean	backwardDisplayLine(TextIter iter)	Moves the given iter backward by one display (wrapped) line.
boolean	backwardDisplayLineStart(TextIter iter)	Moves the given iter backward to the next display line start.
void	bufferToWindowCoords(TextWindowType win, int bufferX, int bufferY, @Nullable Out<Integer> windowX, @Nullable Out<Integer> windowY)	Converts buffer coordinates to window coordinates.
static TextView.Builder<? extends TextView.Builder>	builder()	A TextView.Builder object constructs a TextView with the specified properties.
protected void	copyClipboard()	The class handler for the GtkTextView::copy-clipboard keybinding signal.
protected TextBuffer	createBuffer()	The create_buffer vfunc is called to create a GtkTextBuffer for the text view.
protected void	cutClipboard()	The class handler for the GtkTextView::cut-clipboard keybinding signal
protected void	deleteFromCursor(DeleteType type, int count)	The class handler for the GtkTextView::delete-from-cursor keybinding signal.
void	emitBackspace()	Emits the "backspace" signal.
void	emitCopyClipboard()	Emits the "copy-clipboard" signal.
void	emitCutClipboard()	Emits the "cut-clipboard" signal.
void	emitDeleteFromCursor(DeleteType type, int count)	Emits the "delete-from-cursor" signal.
boolean	emitExtendSelection(TextExtendSelection granularity, TextIter location, TextIter start, TextIter end)	Emits the "extend-selection" signal.
void	emitInsertAtCursor(String string)	Emits the "insert-at-cursor" signal.
void	emitInsertEmoji()	Emits the "insert-emoji" signal.
void	emitMoveCursor(MovementStep step, int count, boolean extendSelection)	Emits the "move-cursor" signal.
void	emitMoveViewport(ScrollStep step, int count)	Emits the "move-viewport" signal.
void	emitPasteClipboard()	Emits the "paste-clipboard" signal.
void	emitPreeditChanged(String preedit)	Emits the "preedit-changed" signal.
void	emitSelectAll(boolean select)	Emits the "select-all" signal.
void	emitSetAnchor()	Emits the "set-anchor" signal.
void	emitToggleCursorVisible()	Emits the "toggle-cursor-visible" signal.
void	emitToggleOverwrite()	Emits the "toggle-overwrite" signal.
protected boolean	extendSelection(TextExtendSelection granularity, TextIter location, TextIter start, TextIter end)	The class handler for the GtkTextView::extend-selection signal.
boolean	forwardDisplayLine(TextIter iter)	Moves the given iter forward by one display (wrapped) line.
boolean	forwardDisplayLineEnd(TextIter iter)	Moves the given iter forward to the next display line end.
boolean	getAcceptsTab()	Returns whether pressing the Tab key inserts a tab characters.
int	getBottomMargin()	Gets the bottom margin for text in the this TextView.
TextBuffer	getBuffer()	Returns the GtkTextBuffer being displayed by this text view.
void	getCursorLocations(@Nullable TextIter iter, @Nullable Rectangle strong, @Nullable Rectangle weak)	Determine the positions of the strong and weak cursors if the insertion point is at iter.
boolean	getCursorVisible()	Find out whether the cursor should be displayed.
boolean	getEditable()	Returns the default editability of the GtkTextView.
MenuModel	getExtraMenu()	Gets the menu model that gets added to the context menu or null if none has been set.
Widget	getGutter(TextWindowType win)	Gets a GtkWidget that has previously been set as gutter.
int	getIndent()	Gets the default indentation of paragraphs in this TextView.
Set<InputHints>	getInputHints()	Gets the input-hints of the GtkTextView.
InputPurpose	getInputPurpose()	Gets the input-purpose of the GtkTextView.
boolean	getIterAtLocation(TextIter iter, int x, int y)	Retrieves the iterator at buffer coordinates x and y.
boolean	getIterAtPosition(TextIter iter, @Nullable Out<Integer> trailing, int x, int y)	Retrieves the iterator pointing to the character at buffer coordinates x and y.
void	getIterLocation(TextIter iter, Rectangle location)	Gets a rectangle which roughly contains the character at iter.
Justification	getJustification()	Gets the default justification of paragraphs in this TextView.
int	getLeftMargin()	Gets the default left margin size of paragraphs in the this TextView.
void	getLineAtY(TextIter targetIter, int y, Out<Integer> lineTop)	Gets the GtkTextIter at the start of the line containing the coordinate y.
void	getLineYrange(TextIter iter, Out<Integer> y, Out<Integer> height)	Gets the y coordinate of the top of the line containing iter, and the height of the line.
Context	getLtrContext()	Gets the PangoContext that is used for rendering LTR directed text layouts.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
boolean	getMonospace()	Gets whether the GtkTextView uses monospace styling.
boolean	getOverwrite()	Returns whether the GtkTextView is in overwrite mode or not.
int	getPixelsAboveLines()	Gets the default number of pixels to put above paragraphs.
int	getPixelsBelowLines()	Gets the default number of pixels to put below paragraphs.
int	getPixelsInsideWrap()	Gets the default number of pixels to put between wrapped lines inside a paragraph.
int	getRightMargin()	Gets the default right margin for text in this TextView.
Context	getRtlContext()	Gets the PangoContext that is used for rendering RTL directed text layouts.
TabArray	getTabs()	Gets the default tabs for this TextView.
int	getTopMargin()	Gets the top margin for text in the this TextView.
static Type	getType()	Get the GType of the TextView class
void	getVisibleRect(Rectangle visibleRect)	Fills visibleRect with the currently-visible region of the buffer, in buffer coordinates.
WrapMode	getWrapMode()	Gets the line wrapping for the view.
boolean	imContextFilterKeypress(Event event)	Allow the GtkTextView input method to internally handle key press and release events.
protected void	insertAtCursor(String str)	The class handler for the GtkTextView::insert-at-cursor keybinding signal.
protected void	insertEmoji()	The class handler for the GtkTextView::insert-emoji signal.
protected void	moveCursor(MovementStep step, int count, boolean extendSelection)	The class handler for the GtkTextView::move-cursor keybinding signal.
boolean	moveMarkOnscreen(TextMark mark)	Moves a mark within the buffer so that it's located within the currently-visible text area.
void	moveOverlay(Widget child, int xpos, int ypos)	Updates the position of a child.
boolean	moveVisually(TextIter iter, int count)	Move the iterator a given number of characters visually, treating it as the strong cursor position.
SignalConnection<TextView.BackspaceCallback>	onBackspace(TextView.BackspaceCallback handler)	Gets emitted when the user asks for it.
SignalConnection<TextView.CopyClipboardCallback>	onCopyClipboard(TextView.CopyClipboardCallback handler)	Gets emitted to copy the selection to the clipboard.
SignalConnection<TextView.CutClipboardCallback>	onCutClipboard(TextView.CutClipboardCallback handler)	Gets emitted to cut the selection to the clipboard.
SignalConnection<TextView.DeleteFromCursorCallback>	onDeleteFromCursor(TextView.DeleteFromCursorCallback handler)	Gets emitted when the user initiates a text deletion.
SignalConnection<TextView.ExtendSelectionCallback>	onExtendSelection(TextView.ExtendSelectionCallback handler)	Emitted when the selection needs to be extended at location.
SignalConnection<TextView.InsertAtCursorCallback>	onInsertAtCursor(TextView.InsertAtCursorCallback handler)	Gets emitted when the user initiates the insertion of a fixed string at the cursor.
SignalConnection<TextView.InsertEmojiCallback>	onInsertEmoji(TextView.InsertEmojiCallback handler)	Gets emitted to present the Emoji chooser for the textView.
SignalConnection<TextView.MoveCursorCallback>	onMoveCursor(TextView.MoveCursorCallback handler)	Gets emitted when the user initiates a cursor movement.
SignalConnection<TextView.MoveViewportCallback>	onMoveViewport(TextView.MoveViewportCallback handler)	Gets emitted to move the viewport.
SignalConnection<TextView.PasteClipboardCallback>	onPasteClipboard(TextView.PasteClipboardCallback handler)	Gets emitted to paste the contents of the clipboard into the text view.
SignalConnection<TextView.PreeditChangedCallback>	onPreeditChanged(TextView.PreeditChangedCallback handler)	Emitted when preedit text of the active IM changes.
SignalConnection<TextView.SelectAllCallback>	onSelectAll(TextView.SelectAllCallback handler)	Gets emitted to select or unselect the complete contents of the text view.
SignalConnection<TextView.SetAnchorCallback>	onSetAnchor(TextView.SetAnchorCallback handler)	Gets emitted when the user initiates settings the "anchor" mark.
SignalConnection<TextView.ToggleCursorVisibleCallback>	onToggleCursorVisible(TextView.ToggleCursorVisibleCallback handler)	Gets emitted to toggle the cursor-visible property.
SignalConnection<TextView.ToggleOverwriteCallback>	onToggleOverwrite(TextView.ToggleOverwriteCallback handler)	Gets emitted to toggle the overwrite mode of the text view.
protected void	pasteClipboard()	The class handler for the GtkTextView::paste-clipboard keybinding signal.
boolean	placeCursorOnscreen()	Moves the cursor to the currently visible region of the buffer.
void	remove(Widget child)	Removes a child widget from this TextView.
void	resetCursorBlink()	Ensures that the cursor is shown.
void	resetImContext()	Reset the input method context of the text view if needed.
void	scrollMarkOnscreen(TextMark mark)	Scrolls this TextView the minimum distance such that mark is contained within the visible area of the widget.
boolean	scrollToIter(TextIter iter, double withinMargin, boolean useAlign, double xalign, double yalign)	Scrolls this TextView so that iter is on the screen in the position indicated by xalign and yalign.
void	scrollToMark(TextMark mark, double withinMargin, boolean useAlign, double xalign, double yalign)	Scrolls this TextView so that mark is on the screen in the position indicated by xalign and yalign.
void	setAcceptsTab(boolean acceptsTab)	Sets the behavior of the text widget when the Tab key is pressed.
protected void	setAnchor()	The class handler for the GtkTextView::set-anchor keybinding signal.
void	setBottomMargin(int bottomMargin)	Sets the bottom margin for text in this TextView.
void	setBuffer(@Nullable TextBuffer buffer)	Sets buffer as the buffer being displayed by this TextView.
void	setCursorVisible(boolean setting)	Toggles whether the insertion point should be displayed.
void	setEditable(boolean setting)	Sets the default editability of the GtkTextView.
void	setExtraMenu(@Nullable MenuModel model)	Sets a menu model to add when constructing the context menu for this TextView.
void	setGutter(TextWindowType win, @Nullable Widget widget)	Places widget into the gutter specified by win.
void	setIndent(int indent)	Sets the default indentation for paragraphs in this TextView.
void	setInputHints(Set<InputHints> hints)	Sets the input-hints of the GtkTextView.
void	setInputHints(InputHints... hints)	Sets the input-hints of the GtkTextView.
void	setInputPurpose(InputPurpose purpose)	Sets the input-purpose of the GtkTextView.
void	setJustification(Justification justification)	Sets the default justification of text in this TextView.
void	setLeftMargin(int leftMargin)	Sets the default left margin for text in this TextView.
void	setMonospace(boolean monospace)	Sets whether the GtkTextView should display text in monospace styling.
void	setOverwrite(boolean overwrite)	Changes the GtkTextView overwrite mode.
void	setPixelsAboveLines(int pixelsAboveLines)	Sets the default number of blank pixels above paragraphs in this TextView.
void	setPixelsBelowLines(int pixelsBelowLines)	Sets the default number of pixels of blank space to put below paragraphs in this TextView.
void	setPixelsInsideWrap(int pixelsInsideWrap)	Sets the default number of pixels of blank space to leave between display/wrapped lines within a paragraph.
void	setRightMargin(int rightMargin)	Sets the default right margin for text in the text view.
void	setTabs(TabArray tabs)	Sets the default tab stops for paragraphs in this TextView.
void	setTopMargin(int topMargin)	Sets the top margin for text in this TextView.
void	setWrapMode(WrapMode wrapMode)	Sets the line wrapping for the view.
protected void	snapshotLayer(TextViewLayer layer, Snapshot snapshot)	The snapshot_layer vfunc is called before and after the text view is drawing its own text.
boolean	startsDisplayLine(TextIter iter)	Determines whether iter is at the start of a display line.
protected void	toggleOverwrite()	The class handler for the GtkTextView::toggle-overwrite keybinding signal.
void	windowToBufferCoords(TextWindowType win, int windowX, int windowY, @Nullable Out<Integer> bufferX, @Nullable Out<Integer> bufferY)	Converts coordinates on the window identified by win to buffer coordinates.
static TextView	withBuffer(TextBuffer buffer)	Creates a new GtkTextView widget displaying the buffer buffer.

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, 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, 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.AccessibleText

updateCaretPosition, updateContents, updateSelectionBound

Methods inherited from interface org.gnome.gtk.Buildable

getBuildableId

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

handle

Methods inherited from interface org.gnome.gtk.Scrollable

getBorder, getHadjustment, getHscrollPolicy, getVadjustment, getVscrollPolicy, setHadjustment, setHscrollPolicy, setVadjustment, setVscrollPolicy

Constructor Details

TextView

public TextView(MemorySegment address)

Create a TextView proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

TextView

public TextView()

Creates a new GtkTextView.

If you don’t call setBuffer(org.gnome.gtk.TextBuffer) before using the text view, an empty default buffer will be created for you. Get the buffer with getBuffer(). If you want to specify your own buffer, consider withBuffer(org.gnome.gtk.TextBuffer).

Method Details

getType

public static Type getType()

Get the GType of the TextView class

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

asParent

protected TextView 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

withBuffer

public static TextView withBuffer(TextBuffer buffer)

Creates a new GtkTextView widget displaying the buffer buffer.

One buffer can be shared among many widgets. buffer may be null to create a default buffer, in which case this function is equivalent to TextView(). The text view adds its own reference count to the buffer; it does not take over an existing reference.

Parameters:

buffer - a GtkTextBuffer

Returns:

a new GtkTextView.

addChildAtAnchor

public void addChildAtAnchor(Widget child,
 TextChildAnchor anchor)

Adds a child widget in the text buffer, at the given anchor.

Parameters:

child - a GtkWidget

anchor - a GtkTextChildAnchor in the GtkTextBuffer for this TextView

addOverlay

public void addOverlay(Widget child,
 int xpos,
 int ypos)

Adds child at a fixed coordinate in the GtkTextView's text window.

The xpos and ypos must be in buffer coordinates (see getIterLocation(org.gnome.gtk.TextIter, org.gnome.gdk.Rectangle) to convert to buffer coordinates).

child will scroll with the text view.

If instead you want a widget that will not move with the GtkTextView contents see GtkOverlay.

Parameters:

child - a GtkWidget

xpos - X position of child in window coordinates

ypos - Y position of child in window coordinates

backwardDisplayLine

public boolean backwardDisplayLine(TextIter iter)

Moves the given iter backward by one display (wrapped) line.

A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view’s width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

Parameters:

iter - a GtkTextIter

Returns:

true if iter was moved and is not on the end iterator

backwardDisplayLineStart

public boolean backwardDisplayLineStart(TextIter iter)

Moves the given iter backward to the next display line start.

A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view’s width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

Parameters:

iter - a GtkTextIter

Returns:

true if iter was moved and is not on the end iterator

bufferToWindowCoords

public void bufferToWindowCoords(TextWindowType win,
 int bufferX,
 int bufferY,
 @Nullable
 @Nullable Out<Integer> windowX,
 @Nullable
 @Nullable Out<Integer> windowY)

Converts buffer coordinates to window coordinates.

Parameters:

win - a GtkTextWindowType

bufferX - buffer x coordinate

bufferY - buffer y coordinate

windowX - window x coordinate return location

windowY - window y coordinate return location

forwardDisplayLine

public boolean forwardDisplayLine(TextIter iter)

Moves the given iter forward by one display (wrapped) line.

A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view’s width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

Parameters:

iter - a GtkTextIter

Returns:

true if iter was moved and is not on the end iterator

forwardDisplayLineEnd

public boolean forwardDisplayLineEnd(TextIter iter)

Moves the given iter forward to the next display line end.

A display line is different from a paragraph. Paragraphs are separated by newlines or other paragraph separator characters. Display lines are created by line-wrapping a paragraph. If wrapping is turned off, display lines and paragraphs will be the same. Display lines are divided differently for each view, since they depend on the view’s width; paragraphs are the same in all views, since they depend on the contents of the GtkTextBuffer.

Parameters:

iter - a GtkTextIter

Returns:

true if iter was moved and is not on the end iterator

getAcceptsTab

public boolean getAcceptsTab()

Returns whether pressing the Tab key inserts a tab characters.

See setAcceptsTab(boolean).

Returns:

true if pressing the Tab key inserts a tab character, false if pressing the Tab key moves the keyboard focus.

getBottomMargin

public int getBottomMargin()

Gets the bottom margin for text in the this TextView.

Returns:

bottom margin in pixels

getBuffer

public TextBuffer getBuffer()

Returns the GtkTextBuffer being displayed by this text view.

The reference count on the buffer is not incremented; the caller of this function won’t own a new reference.

Returns:

a GtkTextBuffer

getCursorLocations

public void getCursorLocations(@Nullable
 @Nullable TextIter iter,
 @Nullable
 @Nullable Rectangle strong,
 @Nullable
 @Nullable Rectangle weak)

Determine the positions of the strong and weak cursors if the insertion point is at iter.

The position of each cursor is stored as a zero-width rectangle. The strong cursor location is the location where characters of the directionality equal to the base direction of the paragraph are inserted. The weak cursor location is the location where characters of the directionality opposite to the base direction of the paragraph are inserted.

If iter is null, the actual cursor position is used.

Note that if iter happens to be the actual cursor position, and there is currently an IM preedit sequence being entered, the returned locations will be adjusted to account for the preedit cursor’s offset within the preedit sequence.

The rectangle position is in buffer coordinates; use bufferToWindowCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>) to convert these coordinates to coordinates for one of the windows in the text view.

Parameters:

iter - a GtkTextIter

strong - location to store the strong cursor position

weak - location to store the weak cursor position

getCursorVisible

public boolean getCursorVisible()

Find out whether the cursor should be displayed.

Returns:

whether the insertion mark is visible

getEditable

public boolean getEditable()

Returns the default editability of the GtkTextView.

Tags in the buffer may override this setting for some ranges of text.

Returns:

whether text is editable by default

getExtraMenu

public MenuModel getExtraMenu()

Gets the menu model that gets added to the context menu or null if none has been set.

Returns:

the menu model

getGutter

public Widget getGutter(TextWindowType win)

Gets a GtkWidget that has previously been set as gutter.

See setGutter(org.gnome.gtk.TextWindowType, org.gnome.gtk.Widget).

win must be one of TextWindowType.LEFT, TextWindowType.RIGHT, TextWindowType.TOP, or TextWindowType.BOTTOM.

Parameters:

win - a GtkTextWindowType

Returns:

a GtkWidget

getIndent

public int getIndent()

Gets the default indentation of paragraphs in this TextView.

Tags in the view’s buffer may override the default. The indentation may be negative.

Returns:

number of pixels of indentation

getInputHints

public Set<InputHints> getInputHints()

Gets the input-hints of the GtkTextView.

Returns:

the input hints

getInputPurpose

public InputPurpose getInputPurpose()

Gets the input-purpose of the GtkTextView.

Returns:

the input purpose

getIterAtLocation

public boolean getIterAtLocation(TextIter iter,
 int x,
 int y)

Retrieves the iterator at buffer coordinates x and y.

Buffer coordinates are coordinates for the entire buffer, not just the currently-displayed portion. If you have coordinates from an event, you have to convert those to buffer coordinates with windowToBufferCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>).

Parameters:

iter - a GtkTextIter

x - x position, in buffer coordinates

y - y position, in buffer coordinates

Returns:

true if the position is over text

getIterAtPosition

public boolean getIterAtPosition(TextIter iter,
 @Nullable
 @Nullable Out<Integer> trailing,
 int x,
 int y)

Retrieves the iterator pointing to the character at buffer coordinates x and y.

Buffer coordinates are coordinates for the entire buffer, not just the currently-displayed portion. If you have coordinates from an event, you have to convert those to buffer coordinates with windowToBufferCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>).

Note that this is different from getIterAtLocation(org.gnome.gtk.TextIter, int, int), which returns cursor locations, i.e. positions between characters.

Parameters:

iter - a GtkTextIter

trailing - if non-null, location to store an integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the trailing edge of the grapheme.

x - x position, in buffer coordinates

y - y position, in buffer coordinates

Returns:

true if the position is over text

getIterLocation

public void getIterLocation(TextIter iter,
 Rectangle location)

Gets a rectangle which roughly contains the character at iter.

The rectangle position is in buffer coordinates; use bufferToWindowCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>) to convert these coordinates to coordinates for one of the windows in the text view.

Parameters:

iter - a GtkTextIter

location - bounds of the character at iter

getJustification

public Justification getJustification()

Gets the default justification of paragraphs in this TextView.

Tags in the buffer may override the default.

Returns:

default justification

getLeftMargin

public int getLeftMargin()

Gets the default left margin size of paragraphs in the this TextView.

Tags in the buffer may override the default.

Returns:

left margin in pixels

getLineAtY

public void getLineAtY(TextIter targetIter,
 int y,
 Out<Integer> lineTop)

Gets the GtkTextIter at the start of the line containing the coordinate y.

y is in buffer coordinates, convert from window coordinates with windowToBufferCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>). If non-null, lineTop will be filled with the coordinate of the top edge of the line.

Parameters:

targetIter - a GtkTextIter

y - a y coordinate

lineTop - return location for top coordinate of the line

getLineYrange

public void getLineYrange(TextIter iter,
 Out<Integer> y,
 Out<Integer> height)

Gets the y coordinate of the top of the line containing iter, and the height of the line.

The coordinate is a buffer coordinate; convert to window coordinates with bufferToWindowCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>).

Parameters:

iter - a GtkTextIter

y - return location for a y coordinate

height - return location for a height

getLtrContext

public Context getLtrContext()

Gets the PangoContext that is used for rendering LTR directed text layouts.

The context may be replaced when CSS changes occur.

Returns:

a PangoContext

getMonospace

public boolean getMonospace()

Gets whether the GtkTextView uses monospace styling.

Returns:

true if monospace fonts are desired

getOverwrite

public boolean getOverwrite()

Returns whether the GtkTextView is in overwrite mode or not.

Returns:

whether this TextView is in overwrite mode or not.

getPixelsAboveLines

public int getPixelsAboveLines()

Gets the default number of pixels to put above paragraphs.

Adding this function with getPixelsBelowLines() is equal to the line space between each paragraph.

Returns:

default number of pixels above paragraphs

getPixelsBelowLines

public int getPixelsBelowLines()

Gets the default number of pixels to put below paragraphs.

The line space is the sum of the value returned by this function and the value returned by getPixelsAboveLines().

Returns:

default number of blank pixels below paragraphs

getPixelsInsideWrap

public int getPixelsInsideWrap()

Gets the default number of pixels to put between wrapped lines inside a paragraph.

Returns:

default number of pixels of blank space between wrapped lines

getRightMargin

public int getRightMargin()

Gets the default right margin for text in this TextView.

Tags in the buffer may override the default.

Returns:

right margin in pixels

getRtlContext

public Context getRtlContext()

Gets the PangoContext that is used for rendering RTL directed text layouts.

The context may be replaced when CSS changes occur.

Returns:

a PangoContext

getTabs

public TabArray getTabs()

Gets the default tabs for this TextView.

Tags in the buffer may override the defaults. The returned array will be null if “standard” (8-space) tabs are used. Free the return value with TabArray.free().

Returns:

copy of default tab array, or null if standard tabs are used; must be freed with TabArray.free().

getTopMargin

public int getTopMargin()

Gets the top margin for text in the this TextView.

Returns:

top margin in pixels

getVisibleRect

public void getVisibleRect(Rectangle visibleRect)

Fills visibleRect with the currently-visible region of the buffer, in buffer coordinates.

Convert to window coordinates with bufferToWindowCoords(org.gnome.gtk.TextWindowType, int, int, io.github.jwharm.javagi.base.Out<java.lang.Integer>, io.github.jwharm.javagi.base.Out<java.lang.Integer>).

Parameters:

visibleRect - rectangle to fill

getWrapMode

public WrapMode getWrapMode()

Gets the line wrapping for the view.

Returns:

the line wrap setting

imContextFilterKeypress

public boolean imContextFilterKeypress(Event event)

Allow the GtkTextView input method to internally handle key press and release events.

If this function returns true, then no further processing should be done for this key event. See IMContext.filterKeypress(org.gnome.gdk.Event).

Note that you are expected to call this function from your handler when overriding key event handling. This is needed in the case when you need to insert your own key handling between the input method and the default key event handling of the GtkTextView.

static gboolean
 gtk_foo_bar_key_press_event (GtkWidget *widget,
                              GdkEvent  *event)
 {
   guint keyval;

   gdk_event_get_keyval ((GdkEvent*)event, &keyval);

   if (keyval == GDK_KEY_Return || keyval == GDK_KEY_KP_Enter)
     {
       if (gtk_text_view_im_context_filter_keypress (GTK_TEXT_VIEW (widget), event))
         return TRUE;
     }

   // Do some stuff

   return GTK_WIDGET_CLASS (gtk_foo_bar_parent_class)->key_press_event (widget, event);
 }
 

Parameters:

event - the key event

Returns:

true if the input method handled the key event.

moveMarkOnscreen

public boolean moveMarkOnscreen(TextMark mark)

Moves a mark within the buffer so that it's located within the currently-visible text area.

Parameters:

mark - a GtkTextMark

Returns:

true if the mark moved (wasn’t already onscreen)

moveOverlay

public void moveOverlay(Widget child,
 int xpos,
 int ypos)

Updates the position of a child.

See addOverlay(org.gnome.gtk.Widget, int, int).

Parameters:

child - a widget already added with addOverlay(org.gnome.gtk.Widget, int, int)

xpos - new X position in buffer coordinates

ypos - new Y position in buffer coordinates

moveVisually

public boolean moveVisually(TextIter iter,
 int count)

Move the iterator a given number of characters visually, treating it as the strong cursor position.

If count is positive, then the new strong cursor position will be count positions to the right of the old cursor position. If count is negative then the new strong cursor position will be count positions to the left of the old cursor position.

In the presence of bi-directional text, the correspondence between logical and visual order will depend on the direction of the current run, and there may be jumps when the cursor is moved off of the end of a run.

Parameters:

iter - a GtkTextIter

count - number of characters to move (negative moves left, positive moves right)

Returns:

true if iter moved and is not on the end iterator

placeCursorOnscreen

public boolean placeCursorOnscreen()

Moves the cursor to the currently visible region of the buffer.

Returns:

true if the cursor had to be moved.

remove

public void remove(Widget child)

Removes a child widget from this TextView.

Parameters:

child - the child to remove

resetCursorBlink

public void resetCursorBlink()

Ensures that the cursor is shown.

This also resets the time that it will stay blinking (or visible, in case blinking is disabled).

This function should be called in response to user input (e.g. from derived classes that override the textview's event handlers).

resetImContext

public void resetImContext()

Reset the input method context of the text view if needed.

This can be necessary in the case where modifying the buffer would confuse on-going input method behavior.

scrollMarkOnscreen

public void scrollMarkOnscreen(TextMark mark)

Scrolls this TextView the minimum distance such that mark is contained within the visible area of the widget.

Parameters:

mark - a mark in the buffer for this TextView

scrollToIter

public boolean scrollToIter(TextIter iter,
 double withinMargin,
 boolean useAlign,
 double xalign,
 double yalign)

Scrolls this TextView so that iter is on the screen in the position indicated by xalign and yalign.

An alignment of 0.0 indicates left or top, 1.0 indicates right or bottom, 0.5 means center. If useAlign is false, the text scrolls the minimal distance to get the mark onscreen, possibly not scrolling at all. The effective screen for purposes of this function is reduced by a margin of size withinMargin.

Note that this function uses the currently-computed height of the lines in the text buffer. Line heights are computed in an idle handler; so this function may not have the desired effect if it’s called before the height computations. To avoid oddness, consider using scrollToMark(org.gnome.gtk.TextMark, double, boolean, double, double) which saves a point to be scrolled to after line validation.

Parameters:

iter - a GtkTextIter

withinMargin - margin as a [0.0,0.5) fraction of screen size

useAlign - whether to use alignment arguments (if false, just get the mark onscreen)

xalign - horizontal alignment of mark within visible area

yalign - vertical alignment of mark within visible area

Returns:

true if scrolling occurred

scrollToMark

public void scrollToMark(TextMark mark,
 double withinMargin,
 boolean useAlign,
 double xalign,
 double yalign)

Scrolls this TextView so that mark is on the screen in the position indicated by xalign and yalign.

An alignment of 0.0 indicates left or top, 1.0 indicates right or bottom, 0.5 means center. If useAlign is false, the text scrolls the minimal distance to get the mark onscreen, possibly not scrolling at all. The effective screen for purposes of this function is reduced by a margin of size withinMargin.

Parameters:

mark - a GtkTextMark

withinMargin - margin as a [0.0,0.5) fraction of screen size

useAlign - whether to use alignment arguments (if false, just get the mark onscreen)

xalign - horizontal alignment of mark within visible area

yalign - vertical alignment of mark within visible area

setAcceptsTab

public void setAcceptsTab(boolean acceptsTab)

Sets the behavior of the text widget when the Tab key is pressed.

If acceptsTab is true, a tab character is inserted. If acceptsTab is false the keyboard focus is moved to the next widget in the focus chain.

Focus can always be moved using Ctrl+Tab.

Parameters:

acceptsTab - true if pressing the Tab key should insert a tab character, false, if pressing the Tab key should move the keyboard focus.

setBottomMargin

public void setBottomMargin(int bottomMargin)

Sets the bottom margin for text in this TextView.

Note that this function is confusingly named. In CSS terms, the value set here is padding.

Parameters:

bottomMargin - bottom margin in pixels

setBuffer

public void setBuffer(@Nullable
 @Nullable TextBuffer buffer)

Sets buffer as the buffer being displayed by this TextView.

The previous buffer displayed by the text view is unreferenced, and a reference is added to buffer. If you owned a reference to buffer before passing it to this function, you must remove that reference yourself; GtkTextView will not “adopt” it.

Parameters:

buffer - a GtkTextBuffer

setCursorVisible

public void setCursorVisible(boolean setting)

Toggles whether the insertion point should be displayed.

A buffer with no editable text probably shouldn’t have a visible cursor, so you may want to turn the cursor off.

Note that this property may be overridden by the Gtk.Settings:gtk-keynav-use-caret setting.

Parameters:

setting - whether to show the insertion cursor

setEditable

public void setEditable(boolean setting)

Sets the default editability of the GtkTextView.

You can override this default setting with tags in the buffer, using the “editable” attribute of tags.

Parameters:

setting - whether it’s editable

setExtraMenu

public void setExtraMenu(@Nullable
 @Nullable MenuModel model)

Sets a menu model to add when constructing the context menu for this TextView.

You can pass null to remove a previously set extra menu.

Parameters:

model - a GMenuModel

setGutter

public void setGutter(TextWindowType win,
 @Nullable
 @Nullable Widget widget)

Places widget into the gutter specified by win.

win must be one of TextWindowType.LEFT, TextWindowType.RIGHT, TextWindowType.TOP, or TextWindowType.BOTTOM.

Parameters:

win - a GtkTextWindowType

widget - a GtkWidget

setIndent

public void setIndent(int indent)

Sets the default indentation for paragraphs in this TextView.

Tags in the buffer may override the default.

Parameters:

indent - indentation in pixels

setInputHints

public void setInputHints(Set<InputHints> hints)

Sets the input-hints of the GtkTextView.

The input-hints allow input methods to fine-tune their behaviour.

Parameters:

hints - the hints

setInputHints

public void setInputHints(InputHints... hints)

Sets the input-hints of the GtkTextView.

The input-hints allow input methods to fine-tune their behaviour.

Parameters:

hints - the hints

setInputPurpose

public void setInputPurpose(InputPurpose purpose)

Sets the input-purpose of the GtkTextView.

The input-purpose can be used by on-screen keyboards and other input methods to adjust their behaviour.

Parameters:

purpose - the purpose

setJustification

public void setJustification(Justification justification)

Sets the default justification of text in this TextView.

Tags in the view’s buffer may override the default.

Parameters:

justification - justification

setLeftMargin

public void setLeftMargin(int leftMargin)

Sets the default left margin for text in this TextView.

Tags in the buffer may override the default.

Note that this function is confusingly named. In CSS terms, the value set here is padding.

Parameters:

leftMargin - left margin in pixels

setMonospace

public void setMonospace(boolean monospace)

Sets whether the GtkTextView should display text in monospace styling.

Parameters:

monospace - true to request monospace styling

setOverwrite

public void setOverwrite(boolean overwrite)

Changes the GtkTextView overwrite mode.

Parameters:

overwrite - true to turn on overwrite mode, false to turn it off

setPixelsAboveLines

public void setPixelsAboveLines(int pixelsAboveLines)

Sets the default number of blank pixels above paragraphs in this TextView.

Tags in the buffer for this TextView may override the defaults.

Parameters:

pixelsAboveLines - pixels above paragraphs

setPixelsBelowLines

public void setPixelsBelowLines(int pixelsBelowLines)

Sets the default number of pixels of blank space to put below paragraphs in this TextView.

May be overridden by tags applied to this TextView’s buffer.

Parameters:

pixelsBelowLines - pixels below paragraphs

setPixelsInsideWrap

public void setPixelsInsideWrap(int pixelsInsideWrap)

Sets the default number of pixels of blank space to leave between display/wrapped lines within a paragraph.

May be overridden by tags in this TextView’s buffer.

Parameters:

pixelsInsideWrap - default number of pixels between wrapped lines

setRightMargin

public void setRightMargin(int rightMargin)

Sets the default right margin for text in the text view.

Tags in the buffer may override the default.

Note that this function is confusingly named. In CSS terms, the value set here is padding.

Parameters:

rightMargin - right margin in pixels

setTabs

public void setTabs(TabArray tabs)

Sets the default tab stops for paragraphs in this TextView.

Tags in the buffer may override the default.

Parameters:

tabs - tabs as a PangoTabArray

setTopMargin

public void setTopMargin(int topMargin)

Sets the top margin for text in this TextView.

Note that this function is confusingly named. In CSS terms, the value set here is padding.

Parameters:

topMargin - top margin in pixels

setWrapMode

public void setWrapMode(WrapMode wrapMode)

Sets the line wrapping for the view.

Parameters:

wrapMode - a GtkWrapMode

startsDisplayLine

public boolean startsDisplayLine(TextIter iter)

Determines whether iter is at the start of a display line.

See forwardDisplayLine(org.gnome.gtk.TextIter) for an explanation of display lines vs. paragraphs.

Parameters:

iter - a GtkTextIter

Returns:

true if iter begins a wrapped line

windowToBufferCoords

public void windowToBufferCoords(TextWindowType win,
 int windowX,
 int windowY,
 @Nullable
 @Nullable Out<Integer> bufferX,
 @Nullable
 @Nullable Out<Integer> bufferY)

Converts coordinates on the window identified by win to buffer coordinates.

Parameters:

win - a GtkTextWindowType

windowX - window x coordinate

windowY - window y coordinate

bufferX - buffer x coordinate return location

bufferY - buffer y coordinate return location

backspace

protected void backspace()

The class handler for the GtkTextView::backspace keybinding signal.

copyClipboard

protected void copyClipboard()

The class handler for the GtkTextView::copy-clipboard keybinding signal.

createBuffer

protected TextBuffer createBuffer()

The create_buffer vfunc is called to create a GtkTextBuffer for the text view. The default implementation is to just call gtk_text_buffer_new().

cutClipboard

protected void cutClipboard()

The class handler for the GtkTextView::cut-clipboard keybinding signal

deleteFromCursor

protected void deleteFromCursor(DeleteType type,
 int count)

The class handler for the GtkTextView::delete-from-cursor keybinding signal.

extendSelection

protected boolean extendSelection(TextExtendSelection granularity,
 TextIter location,
 TextIter start,
 TextIter end)

The class handler for the GtkTextView::extend-selection signal.

insertAtCursor

protected void insertAtCursor(String str)

The class handler for the GtkTextView::insert-at-cursor keybinding signal.

insertEmoji

protected void insertEmoji()

The class handler for the GtkTextView::insert-emoji signal.

moveCursor

protected void moveCursor(MovementStep step,
 int count,
 boolean extendSelection)

The class handler for the GtkTextView::move-cursor keybinding signal.

pasteClipboard

protected void pasteClipboard()

The class handler for the GtkTextView::paste-clipboard keybinding signal.

setAnchor

protected void setAnchor()

The class handler for the GtkTextView::set-anchor keybinding signal.

snapshotLayer

protected void snapshotLayer(TextViewLayer layer,
 Snapshot snapshot)

The snapshot_layer vfunc is called before and after the text view is drawing its own text. Applications can override this vfunc in a subclass to draw customized content underneath or above the text. In the TextViewLayer.BELOW_TEXT and TextViewLayer.ABOVE_TEXT layers the drawing is done in the buffer coordinate space.

toggleOverwrite

protected void toggleOverwrite()

The class handler for the GtkTextView::toggle-overwrite keybinding signal.

onBackspace

public SignalConnection<TextView.BackspaceCallback> onBackspace(TextView.BackspaceCallback handler)

Gets emitted when the user asks for it.

The ::backspace signal is a keybinding signal.

The default bindings for this signal are Backspace and Shift+Backspace.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.BackspaceCallback.run()

emitBackspace

public void emitBackspace()

Emits the "backspace" signal. See onBackspace(org.gnome.gtk.TextView.BackspaceCallback).

onCopyClipboard

public SignalConnection<TextView.CopyClipboardCallback> onCopyClipboard(TextView.CopyClipboardCallback handler)

Gets emitted to copy the selection to the clipboard.

The ::copy-clipboard signal is a keybinding signal.

The default bindings for this signal are Ctrl+c and Ctrl+Insert.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.CopyClipboardCallback.run()

emitCopyClipboard

public void emitCopyClipboard()

Emits the "copy-clipboard" signal. See onCopyClipboard(org.gnome.gtk.TextView.CopyClipboardCallback).

onCutClipboard

public SignalConnection<TextView.CutClipboardCallback> onCutClipboard(TextView.CutClipboardCallback handler)

Gets emitted to cut the selection to the clipboard.

The ::cut-clipboard signal is a keybinding signal.

The default bindings for this signal are Ctrl+x and Shift+Delete.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.CutClipboardCallback.run()

emitCutClipboard

public void emitCutClipboard()

Emits the "cut-clipboard" signal. See onCutClipboard(org.gnome.gtk.TextView.CutClipboardCallback).

onDeleteFromCursor

public SignalConnection<TextView.DeleteFromCursorCallback> onDeleteFromCursor(TextView.DeleteFromCursorCallback handler)

Gets emitted when the user initiates a text deletion.

The ::delete-from-cursor signal is a keybinding signal.

If the type is DeleteType.CHARS, GTK deletes the selection if there is one, otherwise it deletes the requested number of characters.

The default bindings for this signal are Delete for deleting a character, Ctrl+Delete for deleting a word and Ctrl+Backspace for deleting a word backwards.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.DeleteFromCursorCallback.run(org.gnome.gtk.DeleteType, int)

emitDeleteFromCursor

public void emitDeleteFromCursor(DeleteType type,
 int count)

Emits the "delete-from-cursor" signal. See onDeleteFromCursor(org.gnome.gtk.TextView.DeleteFromCursorCallback).

onExtendSelection

public SignalConnection<TextView.ExtendSelectionCallback> onExtendSelection(TextView.ExtendSelectionCallback handler)

Emitted when the selection needs to be extended at location.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.ExtendSelectionCallback.run(org.gnome.gtk.TextExtendSelection, org.gnome.gtk.TextIter, org.gnome.gtk.TextIter, org.gnome.gtk.TextIter)

emitExtendSelection

public boolean emitExtendSelection(TextExtendSelection granularity,
 TextIter location,
 TextIter start,
 TextIter end)

Emits the "extend-selection" signal. See onExtendSelection(org.gnome.gtk.TextView.ExtendSelectionCallback).

onInsertAtCursor

public SignalConnection<TextView.InsertAtCursorCallback> onInsertAtCursor(TextView.InsertAtCursorCallback handler)

Gets emitted when the user initiates the insertion of a fixed string at the cursor.

The ::insert-at-cursor signal is a keybinding signal.

This signal has no default bindings.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.InsertAtCursorCallback.run(java.lang.String)

emitInsertAtCursor

public void emitInsertAtCursor(String string)

Emits the "insert-at-cursor" signal. See onInsertAtCursor(org.gnome.gtk.TextView.InsertAtCursorCallback).

onInsertEmoji

public SignalConnection<TextView.InsertEmojiCallback> onInsertEmoji(TextView.InsertEmojiCallback handler)

Gets emitted to present the Emoji chooser for the textView.

The ::insert-emoji signal is a keybinding signal.

The default bindings for this signal are Ctrl+. and Ctrl+;

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.InsertEmojiCallback.run()

emitInsertEmoji

public void emitInsertEmoji()

Emits the "insert-emoji" signal. See onInsertEmoji(org.gnome.gtk.TextView.InsertEmojiCallback).

onMoveCursor

public SignalConnection<TextView.MoveCursorCallback> onMoveCursor(TextView.MoveCursorCallback handler)

Gets emitted when the user initiates a cursor movement.

The ::move-cursor signal is a keybinding signal. If the cursor is not visible in textView, this signal causes the viewport to be moved instead.

Applications should not connect to it, but may emit it with g_signal_emit_by_name() if they need to control the cursor programmatically.

The default bindings for this signal come in two variants, the variant with the Shift modifier extends the selection, the variant without it does not. There are too many key combinations to list them all here.

• ←, →, ↑, ↓ move by individual characters/lines
• Ctrl+←, etc. move by words/paragraphs
• Home and End move to the ends of the buffer
• PgUp and PgDn move vertically by pages
• Ctrl+PgUp and Ctrl+PgDn move horizontally by pages

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.MoveCursorCallback.run(org.gnome.gtk.MovementStep, int, boolean)

emitMoveCursor

public void emitMoveCursor(MovementStep step,
 int count,
 boolean extendSelection)

Emits the "move-cursor" signal. See onMoveCursor(org.gnome.gtk.TextView.MoveCursorCallback).

onMoveViewport

public SignalConnection<TextView.MoveViewportCallback> onMoveViewport(TextView.MoveViewportCallback handler)

Gets emitted to move the viewport.

The ::move-viewport signal is a keybinding signal, which can be bound to key combinations to allow the user to move the viewport, i.e. change what part of the text view is visible in a containing scrolled window.

There are no default bindings for this signal.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.MoveViewportCallback.run(org.gnome.gtk.ScrollStep, int)

emitMoveViewport

public void emitMoveViewport(ScrollStep step,
 int count)

Emits the "move-viewport" signal. See onMoveViewport(org.gnome.gtk.TextView.MoveViewportCallback).

onPasteClipboard

public SignalConnection<TextView.PasteClipboardCallback> onPasteClipboard(TextView.PasteClipboardCallback handler)

Gets emitted to paste the contents of the clipboard into the text view.

The ::paste-clipboard signal is a keybinding signal.

The default bindings for this signal are Ctrl+v and Shift+Insert.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.PasteClipboardCallback.run()

emitPasteClipboard

public void emitPasteClipboard()

Emits the "paste-clipboard" signal. See onPasteClipboard(org.gnome.gtk.TextView.PasteClipboardCallback).

onPreeditChanged

public SignalConnection<TextView.PreeditChangedCallback> onPreeditChanged(TextView.PreeditChangedCallback handler)

Emitted when preedit text of the active IM changes.

If an input method is used, the typed text will not immediately be committed to the buffer. So if you are interested in the text, connect to this signal.

This signal is only emitted if the text at the given position is actually editable.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.PreeditChangedCallback.run(java.lang.String)

emitPreeditChanged

public void emitPreeditChanged(String preedit)

Emits the "preedit-changed" signal. See onPreeditChanged(org.gnome.gtk.TextView.PreeditChangedCallback).

onSelectAll

public SignalConnection<TextView.SelectAllCallback> onSelectAll(TextView.SelectAllCallback handler)

Gets emitted to select or unselect the complete contents of the text view.

The ::select-all signal is a keybinding signal.

The default bindings for this signal are Ctrl+a and Ctrl+/ for selecting and Shift+Ctrl+a and Ctrl+\\ for unselecting.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.SelectAllCallback.run(boolean)

emitSelectAll

public void emitSelectAll(boolean select)

Emits the "select-all" signal. See onSelectAll(org.gnome.gtk.TextView.SelectAllCallback).

onSetAnchor

public SignalConnection<TextView.SetAnchorCallback> onSetAnchor(TextView.SetAnchorCallback handler)

Gets emitted when the user initiates settings the "anchor" mark.

The ::set-anchor signal is a keybinding signal which gets emitted when the user initiates setting the "anchor" mark. The "anchor" mark gets placed at the same position as the "insert" mark.

This signal has no default bindings.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.SetAnchorCallback.run()

emitSetAnchor

public void emitSetAnchor()

Emits the "set-anchor" signal. See onSetAnchor(org.gnome.gtk.TextView.SetAnchorCallback).

onToggleCursorVisible

public SignalConnection<TextView.ToggleCursorVisibleCallback> onToggleCursorVisible(TextView.ToggleCursorVisibleCallback handler)

Gets emitted to toggle the cursor-visible property.

The ::toggle-cursor-visible signal is a keybinding signal.

The default binding for this signal is F7.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.ToggleCursorVisibleCallback.run()

emitToggleCursorVisible

public void emitToggleCursorVisible()

Emits the "toggle-cursor-visible" signal. See onToggleCursorVisible(org.gnome.gtk.TextView.ToggleCursorVisibleCallback).

onToggleOverwrite

public SignalConnection<TextView.ToggleOverwriteCallback> onToggleOverwrite(TextView.ToggleOverwriteCallback handler)

Gets emitted to toggle the overwrite mode of the text view.

The ::toggle-overwrite signal is a keybinding signal.

The default binding for this signal is Insert.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• TextView.ToggleOverwriteCallback.run()

emitToggleOverwrite

public void emitToggleOverwrite()

Emits the "toggle-overwrite" signal. See onToggleOverwrite(org.gnome.gtk.TextView.ToggleOverwriteCallback).

builder

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

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