Example usage for com.badlogic.gdx.scenes.scene2d Actor setPosition

Introduction

In this page you can find the example usage for com.badlogic.gdx.scenes.scene2d Actor setPosition.

Prototype

public void setPosition(float x, float y, int alignment) 

Source Link

Document

Sets the position using the specified Align alignment .

Usage

From source file:com.kotcrab.vis.ui.util.ActorUtils.java

License:Apache License

/**
 * Makes sures that actor will be fully visible in stage. If it's necessary actor position will be changed to fit it
 * on screen.//from w ww  .j av  a2  s .  co m
 */
public static void keepWithinStage(Stage stage, Actor actor) {
    //taken from scene2d.ui Window
    Camera camera = stage.getCamera();
    if (camera instanceof OrthographicCamera) {
        OrthographicCamera orthographicCamera = (OrthographicCamera) camera;
        float parentWidth = stage.getWidth();
        float parentHeight = stage.getHeight();
        if (actor.getX(Align.right) - camera.position.x > parentWidth / 2 / orthographicCamera.zoom)
            actor.setPosition(camera.position.x + parentWidth / 2 / orthographicCamera.zoom,
                    actor.getY(Align.right), Align.right);
        if (actor.getX(Align.left) - camera.position.x < -parentWidth / 2 / orthographicCamera.zoom)
            actor.setPosition(camera.position.x - parentWidth / 2 / orthographicCamera.zoom,
                    actor.getY(Align.left), Align.left);
        if (actor.getY(Align.top) - camera.position.y > parentHeight / 2 / orthographicCamera.zoom)
            actor.setPosition(actor.getX(Align.top),
                    camera.position.y + parentHeight / 2 / orthographicCamera.zoom, Align.top);
        if (actor.getY(Align.bottom) - camera.position.y < -parentHeight / 2 / orthographicCamera.zoom)
            actor.setPosition(actor.getX(Align.bottom),
                    camera.position.y - parentHeight / 2 / orthographicCamera.zoom, Align.bottom);
    } else if (actor.getParent() == stage.getRoot()) {
        float parentWidth = stage.getWidth();
        float parentHeight = stage.getHeight();
        if (actor.getX() < 0)
            actor.setX(0);
        if (actor.getRight() > parentWidth)
            actor.setX(parentWidth - actor.getWidth());
        if (actor.getY() < 0)
            actor.setY(0);
        if (actor.getTop() > parentHeight)
            actor.setY(parentHeight - actor.getHeight());
    }
}

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From source file:org.ams.core.SceneUtil.java

License:Open Source License

public static void fillAndCenter(Stage stage, Actor actor) {
    actor.setWidth(stage.getWidth());/*from   w  ww .ja  v a  2s  .  c om*/
    actor.setHeight(stage.getHeight());

    float x = stage.getWidth() * 0.5f;
    float y = stage.getHeight() * 0.5f;

    actor.setPosition(x, y, Align.center);

}

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