| /* |
| * Copyright (c) 2005, 2006, 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.tools.jconsole; |
| |
| import java.awt.*; |
| |
| import javax.accessibility.*; |
| import javax.swing.*; |
| import javax.swing.border.*; |
| import javax.swing.tree.*; |
| |
| import sun.tools.jconsole.inspector.*; |
| |
| import static java.lang.Math.*; |
| |
| /** |
| * Miscellaneous utility methods for JConsole |
| */ |
| public class Utilities { |
| private static final String windowsLaF = |
| "com.sun.java.swing.plaf.windows.WindowsLookAndFeel"; |
| |
| public static void updateTransparency(JComponent comp) { |
| LookAndFeel laf = UIManager.getLookAndFeel(); |
| boolean transparent = laf.getClass().getName().equals(windowsLaF); |
| setTabbedPaneTransparency(comp, transparent); |
| } |
| |
| private static void setTabbedPaneTransparency(JComponent comp, boolean transparent) { |
| for (Component child : comp.getComponents()) { |
| if (comp instanceof JTabbedPane) { |
| setTransparency((JComponent)child, transparent); |
| } else if (child instanceof JComponent) { |
| setTabbedPaneTransparency((JComponent)child, transparent); |
| } |
| } |
| } |
| |
| private static void setTransparency(JComponent comp, boolean transparent) { |
| comp.setOpaque(!transparent); |
| for (Component child : comp.getComponents()) { |
| if (child instanceof JPanel || |
| child instanceof JSplitPane || |
| child instanceof JScrollPane || |
| child instanceof JViewport || |
| child instanceof JCheckBox) { |
| |
| setTransparency((JComponent)child, transparent); |
| } |
| if (child instanceof XTree) { |
| XTree t = (XTree)child; |
| DefaultTreeCellRenderer cr = (DefaultTreeCellRenderer)t.getCellRenderer(); |
| |
| cr.setBackground(null); |
| cr.setBackgroundNonSelectionColor(new Color(0, 0, 0, 1)); |
| t.setCellRenderer(cr); |
| setTransparency((JComponent)child, transparent); |
| } |
| } |
| } |
| |
| |
| /** |
| * A slightly modified border for JScrollPane to be used with a JTable inside |
| * a JTabbedPane. It has only top part and the rest is clipped to make the |
| * overall border less thick. |
| * The top border helps differentiating the containing table from its container. |
| */ |
| public static JScrollPane newTableScrollPane(JComponent comp) { |
| return new TableScrollPane(comp); |
| } |
| |
| @SuppressWarnings("serial") |
| private static class TableScrollPane extends JScrollPane { |
| public TableScrollPane(JComponent comp) { |
| super(comp); |
| } |
| |
| protected void paintBorder(Graphics g) { |
| Border border = getBorder(); |
| if (border != null) { |
| Insets insets = border.getBorderInsets(this); |
| if (insets != null) { |
| Shape oldClip = g.getClip(); |
| g.clipRect(0, 0, getWidth(), insets.top); |
| super.paintBorder(g); |
| g.setClip(oldClip); |
| } |
| } |
| } |
| } |
| |
| public static void setAccessibleName(Accessible comp, String name) { |
| comp.getAccessibleContext().setAccessibleName(name); |
| } |
| |
| public static void setAccessibleDescription(Accessible comp, String description) { |
| comp.getAccessibleContext().setAccessibleDescription(description); |
| } |
| |
| |
| /** |
| * Modifies color c1 to ensure it has acceptable contrast |
| * relative to color c2. |
| * |
| * http://www.w3.org/TR/AERT#color-contrast |
| * http://www.cs.rit.edu/~ncs/color/t_convert.html#RGB%20to%20YIQ%20&%20YIQ%20to%20RGB |
| */ |
| public static Color ensureContrast(Color c1, Color c2) { |
| double y1 = getColorBrightness(c1); |
| double y2 = getColorBrightness(c2); |
| |
| if (abs(y1 - y2) < 125.0) { |
| if (y2 < 128.0) { |
| c1 = setColorBrightness(c1, y2 + 125.0); |
| } else { |
| c1 = setColorBrightness(c1, y2 - 125.0); |
| } |
| } |
| |
| return c1; |
| } |
| |
| public static double getColorBrightness(Color c) { |
| // Convert RGB -> YIQ and return the Y value |
| return (c.getRed() * 0.299 + c.getGreen() * 0.587 + c.getBlue() * 0.114); |
| } |
| |
| private static Color setColorBrightness(Color c, double y) { |
| // Convert YIQ -> RGB |
| double i = (c.getRed() * 0.596 - c.getGreen() * 0.275 - c.getBlue() * 0.321); |
| double q = (c.getRed() * 0.212 - c.getGreen() * 0.523 + c.getBlue() * 0.311); |
| |
| // Keep values in legal range. This may reduce the |
| // achieved contrast somewhat. |
| int r = max(0, min(255, (int)round(y + i * 0.956 + q * 0.621))); |
| int g = max(0, min(255, (int)round(y - i * 0.272 - q * 0.647))); |
| int b = max(0, min(255, (int)round(y - i * 1.105 + q * 1.702))); |
| |
| return new Color(r, g, b); |
| } |
| |
| } |