/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.scenes.scene2d.ui;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.scenes.scene2d.utils.Align;
import com.badlogic.gdx.scenes.scene2d.utils.Drawable;
/** A checkbox is a button that contains an image indicating the checked or unchecked state and a label.
* @author Nathan Sweet */
public class CheckBox extends TextButton {
private Image image;
private Cell imageCell;
private CheckBoxStyle style;
public CheckBox (String text, Skin skin) {
this(text, skin.get(CheckBoxStyle.class));
}
public CheckBox (String text, Skin skin, String styleName) {
this(text, skin.get(styleName, CheckBoxStyle.class));
}
public CheckBox (String text, CheckBoxStyle style) {
super(text, style);
clearChildren();
imageCell = add(image = new Image(style.checkboxOff));
Label label = getLabel();
add(label);
label.setAlignment(Align.left);
setSize(getPrefWidth(), getPrefHeight());
}
public void setStyle (ButtonStyle style) {
if (!(style instanceof CheckBoxStyle)) throw new IllegalArgumentException("style must be a CheckBoxStyle.");
super.setStyle(style);
this.style = (CheckBoxStyle)style;
}
/** Returns the checkbox's style. Modifying the returned style may not have an effect until {@link #setStyle(ButtonStyle)} is
* called. */
public CheckBoxStyle getStyle () {
return style;
}
public void draw (Batch batch, float parentAlpha) {
Drawable checkbox = null;
if (isDisabled) {
if (isChecked && style.checkboxOnDisabled != null)
checkbox = style.checkboxOnDisabled;
else
checkbox = style.checkboxOffDisabled;
}
if (checkbox == null) {
if (isChecked && style.checkboxOn != null)
checkbox = style.checkboxOn;
else if (isOver() && style.checkboxOver != null && !isDisabled)
checkbox = style.checkboxOver;
else
checkbox = style.checkboxOff;
}
image.setDrawable(checkbox);
super.draw(batch, parentAlpha);
}
public Image getImage () {
return image;
}
public Cell getImageCell () {
return imageCell;
}
/** The style for a select box, see {@link CheckBox}.
* @author Nathan Sweet */
static public class CheckBoxStyle extends TextButtonStyle {
public Drawable checkboxOn, checkboxOff;
/** Optional. */
public Drawable checkboxOver, checkboxOnDisabled, checkboxOffDisabled;
public CheckBoxStyle () {
}
public CheckBoxStyle (Drawable checkboxOff, Drawable checkboxOn, BitmapFont font, Color fontColor) {
this.checkboxOff = checkboxOff;
this.checkboxOn = checkboxOn;
this.font = font;
this.fontColor = fontColor;
}
public CheckBoxStyle (CheckBoxStyle style) {
this.checkboxOff = style.checkboxOff;
this.checkboxOn = style.checkboxOn;
this.checkboxOver = style.checkboxOver;
this.checkboxOffDisabled = style.checkboxOffDisabled;
this.checkboxOnDisabled = style.checkboxOnDisabled;
this.font = style.font;
this.fontColor = new Color(style.fontColor);
}
}
}