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LibGDX Scene2D GUI building utilities for Kotlin applications.

There is a newer version: 1.12.1-rc2

package ktx.scene2d

import com.badlogic.gdx.scenes.scene2d.Actor
import com.badlogic.gdx.scenes.scene2d.ui.*

/* Inlined factory methods of basic WidgetGroup-based root actors. */

/**
 * @param init will be invoked on the widget. Inlined.
 * @return a new [Stack] instance.
 */
inline fun stack(init: KStack.() -> Unit) = actor(KStack(), init)

/**
 * @param init will be invoked on the widget. Inlined.
 * @return a new [HorizontalGroup] instance.
 */
inline fun horizontalGroup(init: KHorizontalGroup.() -> Unit) = actor(KHorizontalGroup(), init)

/**
 * @param init will be invoked on the widget. Inlined.
 * @return a new [VerticalGroup] instance.
 */
inline fun verticalGroup(init: KVerticalGroup.() -> Unit) = actor(KVerticalGroup(), init)

/**
 * @param init will be invoked on the widget. Inlined.
 * @return a new [Container] instance.
 */
inline fun container(init: KContainer.() -> Unit) = actor(KContainer(), init)

/**
 * @param vertical true to make the widget vertical, false to make it horizontal. Defaults to false (horizontal).
 * @param style name of the widget style. Defaults to [defaultVerticalStyle] or [defaultHorizontalStyle] depending on the
 *    vertical property.
 * @param skin [Skin] instance that contains the widget style. Defaults to [Scene2DSkin.defaultSkin].
 * @param init will be invoked on the widget. Inlined.
 * @return a new [SplitPane] instance.
 */
inline fun splitPane(vertical: Boolean = false,
                     style: String = if (vertical) defaultVerticalStyle else defaultHorizontalStyle,
                     skin: Skin = Scene2DSkin.defaultSkin,
                     init: KSplitPane.() -> Unit) = actor(KSplitPane(vertical, skin, style), init)

/**
 * @param style name of the widget style. Defaults to [defaultStyle].
 * @param skin [Skin] instance that contains the widget style. Defaults to [Scene2DSkin.defaultSkin].
 * @param init will be invoked on the widget. Inlined.
 * @return a new [ScrollPane] instance.
 */
inline fun scrollPane(style: String = defaultStyle,
                      skin: Skin = Scene2DSkin.defaultSkin,
                      init: KScrollPane.() -> Unit) = actor(KScrollPane(skin, style), init)