| /* |
| * Copyright (c) 2005, 2014, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package sun.swing.icon; |
| |
| import java.awt.Color; |
| import java.awt.Component; |
| import java.awt.Graphics; |
| import java.io.Serializable; |
| import javax.swing.Icon; |
| import javax.swing.UIManager; |
| import javax.swing.plaf.UIResource; |
| |
| /** |
| * Sorting icon. |
| * |
| */ |
| @SuppressWarnings("serial") // JDK-implementation class |
| public class SortArrowIcon implements Icon, UIResource, Serializable { |
| // Height of the arrow, the width is ARROW_HEIGHT |
| private static final int ARROW_HEIGHT = 5; |
| |
| // Amount of pad to left of arrow |
| private static final int X_PADDING = 7; |
| |
| // Sort direction |
| private boolean ascending; |
| |
| // The Color to use, may be null indicating colorKey should be used |
| private Color color; |
| |
| // If non-null indicates the color should come from the UIManager with |
| // this key. |
| private String colorKey; |
| |
| /** |
| * Creates a <code>SortArrowIcon</code>. |
| * |
| * @param ascending if true, icon respresenting ascending sort, otherwise |
| * descending |
| * @param color the color to render the icon |
| */ |
| public SortArrowIcon(boolean ascending, Color color) { |
| this.ascending = ascending; |
| this.color = color; |
| if (color == null) { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| /** |
| * Creates a <code>SortArrowIcon</code>. |
| * |
| * @param ascending if true, icon respresenting ascending sort, otherwise |
| * descending |
| * @param colorKey the key used to find color in UIManager |
| */ |
| public SortArrowIcon(boolean ascending, String colorKey) { |
| this.ascending = ascending; |
| this.colorKey = colorKey; |
| if (colorKey == null) { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| public void paintIcon(Component c, Graphics g, int x, int y) { |
| g.setColor(getColor()); |
| int startX = X_PADDING + x + ARROW_HEIGHT / 2; |
| if (ascending) { |
| int startY = y; |
| g.fillRect(startX, startY, 1, 1); |
| for (int line = 1; line < ARROW_HEIGHT; line++) { |
| g.fillRect(startX - line, startY + line, |
| line + line + 1, 1); |
| } |
| } |
| else { |
| int startY = y + ARROW_HEIGHT - 1; |
| g.fillRect(startX, startY, 1, 1); |
| for (int line = 1; line < ARROW_HEIGHT; line++) { |
| g.fillRect(startX - line, startY - line, |
| line + line + 1, 1); |
| } |
| } |
| } |
| |
| public int getIconWidth() { |
| return X_PADDING + ARROW_HEIGHT * 2; |
| } |
| |
| public int getIconHeight() { |
| return ARROW_HEIGHT + 2; |
| } |
| |
| private Color getColor() { |
| if (color != null) { |
| return color; |
| } |
| return UIManager.getColor(colorKey); |
| } |
| } |