使用 libgdx 缩放 scene2d 按钮

I don't know if it is just me, but drawables http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/scenes/scene2d/utils/Drawable.html confuse me. Are they intended to keep the size they are given, or is there a way to scale the image within them? I understand they can use ninepatch to fill certain areas by stretching an image, but I want to scale the image that it stretches. I am using a TextButton http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/scenes/scene2d/ui/TextButton.html for my menu buttons, but they are way too big, and I would love to know how to scale them. I am retrieving the skin from an atlas, which has ninepatch images in it. Here is the settings screen: Here are the images in the pack I am using: Here is the initialization of the TextureAtlas, and Skin:

buttonAtlas = new TextureAtlas(Gdx.files.internal("buttons/buttons.pack"));
buttonSkin = new Skin(buttonAtlas); 

这是该菜单按钮的初始化。

TextButtonStyle textButtonStyle = new TextButtonStyle();
textButtonStyle.up = Assets.buttonSkin.getDrawable("bluebutton");
textButtonStyle.down = Assets.buttonSkin.getDrawable("redbutton");
textButtonStyle.font = font;

buttonMenu = new TextButton("Menu", textButtonStyle);
buttonMenu.pad(20.0f);
buttonMenu.addListener(new ClickListener() {
    @Override
    public void clicked(InputEvent event, float x, float y) {
        game.fade.startFadeOut();
        super.clicked(event, x, y);
    }
});

也许我可以改变我把它放在桌子上的方式，或者我把桌子放在舞台上的方式？

table.add(buttonMenu).width(Gdx.graphics.getWidth()/4);
stage.addActor(table);

作为最后的手段，我想我可以尝试创建自己的可以缩放的文本按钮演员，谢谢您的时间。

首先，如果您知道图像太大：最好的方法是将图像本身缩放到较小的尺寸，然后使用TexturePacker 生成一个包含较小图像的新TextureAtlas。

无论如何，如果您确实愿意，可以使用 TableLayout 缩放图像按钮，请参阅示例：

table.add(buttonMenu).width(100).height(100);