127 lines
4.2 KiB
Java
127 lines
4.2 KiB
Java
/*
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* Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.swing.plaf.synth;
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import javax.swing.plaf.synth.*;
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import java.awt.*;
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import javax.swing.*;
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import javax.swing.border.Border;
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import javax.swing.plaf.UIResource;
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/**
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* An icon that is passed a SynthContext. Subclasses need only implement
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* the variants that take a SynthContext, but must be prepared for the
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* SynthContext to be null.
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*
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* @author Scott Violet
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*/
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public abstract class SynthIcon implements Icon {
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public static int getIconWidth(Icon icon, SynthContext context) {
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if (icon == null) {
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return 0;
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}
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if (icon instanceof SynthIcon) {
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return ((SynthIcon)icon).getIconWidth(context);
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}
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return icon.getIconWidth();
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}
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public static int getIconHeight(Icon icon, SynthContext context) {
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if (icon == null) {
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return 0;
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}
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if (icon instanceof SynthIcon) {
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return ((SynthIcon)icon).getIconHeight(context);
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}
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return icon.getIconHeight();
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}
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public static void paintIcon(Icon icon, SynthContext context, Graphics g,
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int x, int y, int w, int h) {
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if (icon instanceof SynthIcon) {
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((SynthIcon)icon).paintIcon(context, g, x, y, w, h);
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}
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else if (icon != null) {
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icon.paintIcon(context.getComponent(), g, x, y);
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}
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}
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/**
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* Paints the icon at the specified location.
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*
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* @param context Identifies hosting region, may be null.
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* @param x x location to paint to
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* @param y y location to paint to
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* @param w Width of the region to paint to, may be 0
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* @param h Height of the region to paint to, may be 0
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*/
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public abstract void paintIcon(SynthContext context, Graphics g, int x,
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int y, int w, int h);
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/**
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* Returns the desired width of the Icon.
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*
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* @param context SynthContext requesting the Icon, may be null.
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* @return Desired width of the icon.
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*/
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public abstract int getIconWidth(SynthContext context);
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/**
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* Returns the desired height of the Icon.
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*
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* @param context SynthContext requesting the Icon, may be null.
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* @return Desired height of the icon.
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*/
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public abstract int getIconHeight(SynthContext context);
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/**
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* Paints the icon. This is a cover method for
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* <code>paintIcon(null, g, x, y, 0, 0)</code>
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*/
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public void paintIcon(Component c, Graphics g, int x, int y) {
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paintIcon(null, g, x, y, 0, 0);
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}
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/**
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* Returns the icon's width. This is a cover methods for
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* <code>getIconWidth(null)</code>.
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*
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* @return an int specifying the fixed width of the icon.
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*/
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public int getIconWidth() {
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return getIconWidth(null);
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}
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/**
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* Returns the icon's height. This is a cover method for
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* <code>getIconHeight(null)</code>.
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*
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* @return an int specifying the fixed height of the icon.
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*/
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public int getIconHeight() {
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return getIconHeight(null);
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}
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}
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