Animation.java
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上传日期:2022-06-15
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- /*
- * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Sun designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Sun in the LICENSE file that accompanied this code.
- *
- * This code 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 General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- */
- package com.sun.lwuit.animations;
- import com.sun.lwuit.Graphics;
- /**
- * Allows any object to react to events and draw an
- * animation at a fixed interval. All animation methods are executed on the EDT.
- * For simplicities sake all components are animatable, however no animation will
- * appear unless it is explicitly registered into the parent form. In order to
- * stop animation callbacks the animation must be explicitly removed from the form
- * (notice that this differs from removing the component from the form!).
- *
- * @author Shai Almog
- */
- public interface Animation {
- /**
- * Allows the animation to reduce "repaint" calls when it returns false. It is
- * called once for every frame. Frames are defined by the {@link com.sun.lwuit.Display} class.
- *
- * @return true if a repaint is desired or false if no repaint is necessary
- */
- public boolean animate();
- /**
- * Draws the animation, within a component the standard paint method would be
- * invoked since it bares the exact same signature.
- *
- * @param g graphics context
- */
- public void paint(Graphics g);
-
- }