/*******************************************************************************
* 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.ui.Label.LabelStyle;
import com.badlogic.gdx.scenes.scene2d.utils.Align;
import com.badlogic.gdx.scenes.scene2d.utils.Drawable;
/** A button with a child {@link Label} to display text.
* @author Nathan Sweet */
public class TextButton extends Button {
private final Label label;
private TextButtonStyle style;
public TextButton (String text, Skin skin) {
this(text, skin.get(TextButtonStyle.class));
setSkin(skin);
}
public TextButton (String text, Skin skin, String styleName) {
this(text, skin.get(styleName, TextButtonStyle.class));
setSkin(skin);
}
public TextButton (String text, TextButtonStyle style) {
super();
setStyle(style);
this.style = style;
label = new Label(text, new LabelStyle(style.font, style.fontColor));
label.setAlignment(Align.center);
add(label).expand().fill();
setSize(getPrefWidth(), getPrefHeight());
}
public void setStyle (ButtonStyle style) {
if (style == null) {
throw new NullPointerException("style cannot be null");
}
if (!(style instanceof TextButtonStyle)) throw new IllegalArgumentException("style must be a TextButtonStyle.");
super.setStyle(style);
this.style = (TextButtonStyle)style;
if (label != null) {
TextButtonStyle textButtonStyle = (TextButtonStyle)style;
LabelStyle labelStyle = label.getStyle();
labelStyle.font = textButtonStyle.font;
labelStyle.fontColor = textButtonStyle.fontColor;
label.setStyle(labelStyle);
}
}
public TextButtonStyle getStyle () {
return style;
}
public void draw (Batch batch, float parentAlpha) {
Color fontColor;
if (isDisabled && style.disabledFontColor != null)
fontColor = style.disabledFontColor;
else if (isPressed() && style.downFontColor != null)
fontColor = style.downFontColor;
else if (isChecked && style.checkedFontColor != null)
fontColor = (isOver() && style.checkedOverFontColor != null) ? style.checkedOverFontColor : style.checkedFontColor;
else if (isOver() && style.overFontColor != null)
fontColor = style.overFontColor;
else
fontColor = style.fontColor;
if (fontColor != null) label.getStyle().fontColor = fontColor;
super.draw(batch, parentAlpha);
}
public Label getLabel () {
return label;
}
public Cell getLabelCell () {
return getCell(label);
}
public void setText (String text) {
label.setText(text);
}
public CharSequence getText () {
return label.getText();
}
/** The style for a text button, see {@link TextButton}.
* @author Nathan Sweet */
static public class TextButtonStyle extends ButtonStyle {
public BitmapFont font;
/** Optional. */
public Color fontColor, downFontColor, overFontColor, checkedFontColor, checkedOverFontColor, disabledFontColor;
public TextButtonStyle () {
}
public TextButtonStyle (Drawable up, Drawable down, Drawable checked, BitmapFont font) {
super(up, down, checked);
this.font = font;
}
public TextButtonStyle (TextButtonStyle style) {
super(style);
this.font = style.font;
if (style.fontColor != null) this.fontColor = new Color(style.fontColor);
if (style.downFontColor != null) this.downFontColor = new Color(style.downFontColor);
if (style.overFontColor != null) this.overFontColor = new Color(style.overFontColor);
if (style.checkedFontColor != null) this.checkedFontColor = new Color(style.checkedFontColor);
if (style.checkedOverFontColor != null) this.checkedFontColor = new Color(style.checkedOverFontColor);
if (style.disabledFontColor != null) this.disabledFontColor = new Color(style.disabledFontColor);
}
}
}