DatePicker

classin packageklyn.gui.windows

public class DatePicker extends Widget

Widget

└ DatePicker

Themed date selection field with a calendar popup.

The widget behaves like a combo box whose popup lets the user choose a date. value is a signal property, so it can be bound or watched directly. Enable quickEditMode when the expected workflow is year, then month, then day.

import klyn.gui.windows
import klyn.time

picker = DatePicker(DateTime(year=2026, month=6, day=14))
picker.quickEditMode = true
Binding.watch(picker::value, lambda(value as Object): print(value))

Properties

Modifier and Type	Member	Description
public property	buttonAreaWidth `buttonAreaWidth as Int = 42`	Width reserved for the calendar button at the right side of the field.
public property	isExpanded `isExpanded as Boolean = false`	Whether the popup is currently visible.
public property	paddingX `paddingX as Int = 12`	Horizontal text padding inside the collapsed field.
public property	quickEditMode `quickEditMode as Boolean = false`	Enables the three-click picker: year, month, then day.

Inherited Properties

Signals

Modifier and Type	Member	Description
public signal property	value `value as DateTime`	Selected date.

Events

Modifier and Type	Member	Description
public event	dateChanged `dateChanged as ActionEvent`	Event emitted after the selected date changes.

Inherited Events

eventInherited Events from Widget: filesDropped, focusGained, focusLost, keyPressed, keyReleased, mouseMoved, mousePressed, mouseReleased, mouseWheel, paintRequested, resized

Constructors

Modifier and Type	Member	Description
public	DatePicker `DatePicker(value as DateTime = DateTime.now)`	Creates a date picker.

Methods

Modifier and Type	Member	Description
public override	applyThemeMetrics `applyThemeMetrics(fontPixelSize as Int, paddingLeft as Int, paddingTop as Int, paddingRight as Int, paddingBottom as Int) as Void`	No summary.
public	collapse `collapse() as Boolean`	Closes the calendar popup.
public	expand `expand() as Boolean`	Opens the calendar popup.
public override	paint `paint(painter as Painter) as Void`	Paints the collapsed field.
public override	paintOverlay `paintOverlay(painter as Painter) as Void`	Paints the calendar popup above the regular widget tree.
public	popupContainsPoint `popupContainsPoint(x as Int, y as Int) as Boolean`	Returns true when a point falls inside the open popup.
public override	preferredSizeIncludesContentZoom `preferredSizeIncludesContentZoom() as Boolean`	No summary.
public override	resolvePreferredHeight `resolvePreferredHeight() as Int`	Resolved preferred height after runtime content zoom.
public override	resolvePreferredWidth `resolvePreferredWidth() as Int`	Resolved preferred width after runtime content zoom.
public	toggleExpanded `toggleExpanded() as Boolean`	Toggles the calendar popup.

Inherited Methods