Java tutorial
/** * eAdventure is a research project of the * e-UCM research group. * * Copyright 2005-2014 e-UCM research group. * * You can access a list of all the contributors to eAdventure at: * http://e-adventure.e-ucm.es/contributors * * e-UCM is a research group of the Department of Software Engineering * and Artificial Intelligence at the Complutense University of Madrid * (School of Computer Science). * * CL Profesor Jose Garcia Santesmases 9, * 28040 Madrid (Madrid), Spain. * * For more info please visit: <http://e-adventure.e-ucm.es> or * <http://www.e-ucm.es> * * **************************************************************************** * * This file is part of eAdventure * * eAdventure is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * eAdventure is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with eAdventure. If not, see <http://www.gnu.org/licenses/>. */ package es.eucm.ead.editor.view.widgets; import com.badlogic.gdx.graphics.g2d.Batch; import com.badlogic.gdx.scenes.scene2d.Touchable; import com.badlogic.gdx.scenes.scene2d.ui.Button; import com.badlogic.gdx.scenes.scene2d.ui.Image; import com.badlogic.gdx.scenes.scene2d.ui.Skin; import com.badlogic.gdx.scenes.scene2d.utils.Drawable; import com.badlogic.gdx.utils.Scaling; import es.eucm.ead.editor.view.tooltips.Tooltip; import com.badlogic.gdx.graphics.Color; /** * A button with an icon */ public class IconButton extends Button implements Tooltip { private String tooltip; protected Image iconImage; private IconButtonStyle style; /** * @param icon * the identifier of the icon drawable inside the given skin * @param skin * the skin */ public IconButton(String icon, Skin skin) { this(icon, 0, skin); } /** * @param icon * the identifier of the icon drawable inside the given skin * @param padding * padding of the icon inside the button * @param skin * the skin */ public IconButton(String icon, float padding, Skin skin) { this(skin.getDrawable(icon), padding, skin); } public IconButton(String name, String icon, float padding, Skin skin) { this(name, skin.getDrawable(icon), padding, skin); } public IconButton(String icon, float padding, Skin skin, String styleName) { this(icon, skin.getDrawable(icon), padding, skin, styleName); } public IconButton(String icon, Skin skin, String styleName) { this(icon, icon, 0, skin, styleName); } public IconButton(String name, String icon, float padding, Skin skin, String styleName) { this(name, skin.getDrawable(icon), padding, skin, styleName); } /** * @param icon * the drawable with the icon * @param skin * the skin */ public IconButton(Drawable icon, Skin skin) { this(icon, 0, skin); } /** * @param icon * the drawable with the icon * @param padding * padding of the icon inside the button * @param skin * the skin */ public IconButton(Drawable icon, float padding, Skin skin) { this(null, icon, padding, skin, "default"); } public IconButton(String name, Drawable icon, float padding, Skin skin) { this(name, icon, padding, skin, "default"); } /** * @param icon * the drawable with the icon * @param padding * padding of the icon inside the button * @param skin * the skin * @param styleName * the button style name */ public IconButton(String name, Drawable icon, float padding, Skin skin, String styleName) { super(skin); setStyle(skin.get(styleName, IconButtonStyle.class)); init(icon, padding, skin); setName(name); } public IconButton(Drawable drawable, float padding, Skin skin, String styleName) { this(null, drawable, padding, skin, styleName); } protected void init(Drawable icon, float padding, Skin skin) { iconImage = new Image(icon); iconImage.setScaling(Scaling.fit); iconImage.setTouchable(Touchable.disabled); add(iconImage).pad(padding); setDisabled(false); } /** * Change the {@link Button#isDisabled} attribute and accordingly the color * of the image. * <p/> * The background color when disabled is managed with * {@link ButtonStyle#disabled} attribute in {@link Button#draw} method. * * @param isDisabled */ public void setDisabled(boolean isDisabled) { super.setDisabled(isDisabled); if (isDisabled) { if (style.disabledColor != null) { iconImage.setColor(style.disabledColor); } } else { if (style.color != null) { iconImage.setColor(style.color); } } } @Override public void setChecked(boolean isChecked) { super.setChecked(isChecked); if (isChecked && style.checkedColor != null) { iconImage.setColor(style.checkedColor); } else { iconImage.setColor(style.color); } } @Override public void draw(Batch batch, float parentAlpha) { super.draw(batch, parentAlpha); // iconImage does not restore the batch color, and its color is // transmitted batch.setColor(Color.WHITE); } public void setStyle(IconButtonStyle style) { super.setStyle(style); this.style = style; } /** * Sets tooltip text for this button. It'll appear with mouse over */ public void setTooltip(String tooltip) { this.tooltip = tooltip; } @Override public String getTooltip() { return tooltip; } @Override public float getXOffset() { return 0.5f; } @Override public float getYOffset() { return 0.f; } /** * The style for {@link IconButton} See also {@link ButtonStyle} */ public static class IconButtonStyle extends ButtonStyle { /** * {@link IconButtonStyle#disabledColor} is used to change the * {@link Color} of the image used in {@link IconButton} when the button * is disabled (it does not include an alternative image). */ public Color disabledColor; /** * {@link IconButtonStyle#color} is used to change the {@link Color} of * the image used in {@link IconButton} when the button is activated (it * does not include an alternative image). */ public Color color; public Color checkedColor; /** * Default constructor used for reflection */ public IconButtonStyle() { } public IconButtonStyle(Color color, Color disabledColor) { this.color = color; this.disabledColor = disabledColor; } public IconButtonStyle(IconButtonStyle iconButtonStyle) { super(iconButtonStyle); this.color = iconButtonStyle.color; this.disabledColor = iconButtonStyle.disabledColor; } } public Image getIcon() { return iconImage; } }