/*******************************************************************************
* 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.ui.TextButton.TextButtonStyle;
import com.badlogic.gdx.scenes.scene2d.utils.Align;
import com.badlogic.gdx.scenes.scene2d.utils.Drawable;
import com.badlogic.gdx.utils.Scaling;
/** A button with a child {@link Image} and {@link Label}.
* @see ImageButton
* @see TextButton
* @see Button
* @author Nathan Sweet */
public class ImageTextButton extends Button {
private final Image image;
private final Label label;
private ImageTextButtonStyle style;
public ImageTextButton (String text, Skin skin) {
this(text, skin.get(ImageTextButtonStyle.class));
setSkin(skin);
}
public ImageTextButton (String text, Skin skin, String styleName) {
this(text, skin.get(styleName, ImageTextButtonStyle.class));
setSkin(skin);
}
public ImageTextButton (String text, ImageTextButtonStyle style) {
super(style);
this.style = style;
defaults().space(3);
image = new Image();
image.setScaling(Scaling.fit);
add(image);
label = new Label(text, new LabelStyle(style.font, style.fontColor));
label.setAlignment(Align.center);
add(label);
setStyle(style);
setSize(getPrefWidth(), getPrefHeight());
}
public void setStyle (ButtonStyle style) {
if (!(style instanceof ImageTextButtonStyle)) throw new IllegalArgumentException("style must be a ImageTextButtonStyle.");
super.setStyle(style);
this.style = (ImageTextButtonStyle)style;
if (image != null) updateImage();
if (label != null) {
ImageTextButtonStyle textButtonStyle = (ImageTextButtonStyle)style;
LabelStyle labelStyle = label.getStyle();
labelStyle.font = textButtonStyle.font;
labelStyle.fontColor = textButtonStyle.fontColor;
label.setStyle(labelStyle);
}
}
public ImageTextButtonStyle getStyle () {
return style;
}
private void updateImage () {
boolean isPressed = isPressed();
if (isDisabled && style.imageDisabled != null)
image.setDrawable(style.imageDisabled);
else if (isPressed && style.imageDown != null)
image.setDrawable(style.imageDown);
else if (isChecked && style.imageChecked != null)
image.setDrawable((style.imageCheckedOver != null && isOver()) ? style.imageCheckedOver : style.imageChecked);
else if (isOver() && style.imageOver != null)
image.setDrawable(style.imageOver);
else if (style.imageUp != null) //
image.setDrawable(style.imageUp);
}
public void draw (Batch batch, float parentAlpha) {
updateImage();
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 Image getImage () {
return image;
}
public Cell getImageCell () {
return getCell(image);
}
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 an image text button, see {@link ImageTextButton}.
* @author Nathan Sweet */
static public class ImageTextButtonStyle extends TextButtonStyle {
/** Optional. */
public Drawable imageUp, imageDown, imageOver, imageChecked, imageCheckedOver, imageDisabled;
public ImageTextButtonStyle () {
}
public ImageTextButtonStyle (Drawable up, Drawable down, Drawable checked, BitmapFont font) {
super(up, down, checked, font);
}
public ImageTextButtonStyle (ImageTextButtonStyle style) {
super(style);
if (style.imageUp != null) this.imageUp = style.imageUp;
if (style.imageDown != null) this.imageDown = style.imageDown;
if (style.imageOver != null) this.imageOver = style.imageOver;
if (style.imageChecked != null) this.imageChecked = style.imageChecked;
if (style.imageCheckedOver != null) this.imageCheckedOver = style.imageCheckedOver;
if (style.imageDisabled != null) this.imageDisabled = style.imageDisabled;
}
public ImageTextButtonStyle (TextButtonStyle style) {
super(style);
}
}
}