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

Introduction

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

Prototype

public float getX(int alignment) 

Source Link

Document

Returns the X position of 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 w  w . j av  a  2  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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