gui.java

package com.mygdx.game;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.*;

public class MyGdxGame extends ApplicationAdapter {
	private Stage stage;
    private Window window;

	private Skin skin;

    public Table get_t(String name, boolean left_aligned, boolean arrow)
    {
        String symbol = "-";
        if(arrow)
            symbol = ">";

        Table t = new Table();

        if(left_aligned) {
            t.add(new TextButton(symbol, skin));
            t.add(new Label(name, skin));
        }
        else
        {
            t.add(new Label(name, skin));
            t.add(new TextButton(symbol, skin));
        }

        return t;
    }

	@Override
	public void create () {
        stage = new Stage();
        Gdx.input.setInputProcessor(stage);


        skin = new Skin(Gdx.files.internal("uiskin.json"));

        Table c1 = new Table();
        c1.add(get_t("c1", true, true));

        Table c2 = new Table();
        c2.add(get_t("c2", false, true));
        c2.row();
        c2.add(get_t("c222", false, true));

        Table c3 = new Table();
        c3.add(get_t("c3", true, false));
        c3.row();
        c3.add(get_t("c3333", true, false));

        Table c4 = new Table();
        c4.add(get_t("c4", false, false));
        c4.row();
        c4.add(get_t("c44444", false, false));

        window = new Window("test window",skin);
        window.setDebug(true);

        //Table.setTouchable(Enabled)
        //needed for drag?
        //window.setFillParent(true);


        window.add(c1);
        window.add(new Container()).expand();
        window.add(c2);
        window.row();
        window.add(c3);
        window.add(new Container()).expand();
        window.add(c4);

        window.setX(300);
        window.setY(300);

        stage.addActor(window);

        System.out.println(window.getPrefWidth());
	}

    @Override
    public void resize (int width, int height) {
        stage.getViewport().update(width, height, true);
    }

	@Override
	public void render () {
		//Gdx.gl.glClearColor(1, 0, 0, 1);
		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        stage.act(Gdx.graphics.getDeltaTime());
        stage.draw();
		//batch.begin();
		//batch.draw(img, 0, 0);
		//batch.end();
	}
	
	@Override
	public void dispose () {
		//batch.dispose();
        stage.dispose();
		//img.dispose();
	}
}