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+/* BasicSeparatorUI.java --
+ Copyright (C) 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.plaf.basic;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Rectangle;
+
+import javax.swing.JComponent;
+import javax.swing.JSeparator;
+import javax.swing.SwingUtilities;
+import javax.swing.UIManager;
+import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.SeparatorUI;
+
+/**
+ * The Basic Look and Feel UI delegate for JSeparator.
+ */
+public class BasicSeparatorUI extends SeparatorUI
+{
+ /** The shadow color. */
+ protected Color shadow;
+
+ /** The highlight color. */
+ protected Color highlight;
+
+ /**
+ * Creates a new UI delegate for the given JComponent.
+ *
+ * @param c The JComponent to create a delegate for.
+ *
+ * @return A new BasicSeparatorUI.
+ */
+ public static ComponentUI createUI(JComponent c)
+ {
+ return new BasicSeparatorUI();
+ }
+
+ /**
+ * This method installs the UI for the given JComponent.
+ * This can include installing defaults, listeners, and
+ * initializing any instance data.
+ *
+ * @param c The JComponent that is having this UI installed.
+ */
+ public void installUI(JComponent c)
+ {
+ super.installUI(c);
+
+ if (c instanceof JSeparator)
+ {
+ JSeparator s = (JSeparator) c;
+
+ installDefaults(s);
+ installListeners(s);
+ }
+ }
+
+ /**
+ * Uninstalls the UI for the given JComponent. This
+ * method reverses what was done when installing
+ * the UI on the JComponent.
+ *
+ * @param c The JComponent that is having this UI uninstalled.
+ */
+ public void uninstallUI(JComponent c)
+ {
+ if (c instanceof JSeparator)
+ {
+ JSeparator s = (JSeparator) c;
+
+ uninstallListeners(s);
+ uninstallDefaults(s);
+ }
+ }
+
+ /**
+ * This method installs the defaults that are given by
+ * the Basic Look and Feel.
+ *
+ * @param s The JSeparator that is being installed.
+ */
+ protected void installDefaults(JSeparator s)
+ {
+ shadow = UIManager.getColor("Separator.shadow");
+ highlight = UIManager.getColor("Separator.highlight");
+ s.setOpaque(false);
+ }
+
+ /**
+ * This method removes the defaults that were given
+ * by the Basic Look and Feel.
+ *
+ * @param s The JSeparator that is being uninstalled.
+ */
+ protected void uninstallDefaults(JSeparator s)
+ {
+ shadow = null;
+ highlight = null;
+ }
+
+ /**
+ * This method installs any listeners that need
+ * to be attached to the JSeparator or any of its
+ * components.
+ *
+ * @param s The JSeparator that is being installed.
+ */
+ protected void installListeners(JSeparator s)
+ {
+ // Separators don't receive events.
+ }
+
+ /**
+ * This method uninstalls any listeners that
+ * were installed during the install UI process.
+ *
+ * @param s The JSeparator that is being uninstalled.
+ */
+ protected void uninstallListeners(JSeparator s)
+ {
+ // Separators don't receive events.
+ }
+
+ /**
+ * The separator is made of two lines. The top line will be
+ * the shadow color (or left line if it's vertical). The bottom
+ * or right line will be the highlight color. The two lines will
+ * be centered inside the bounds box. If the separator is horizontal,
+ * then it will be vertically centered, or if it's vertical, it will
+ * be horizontally centered.
+ *
+ * @param g The Graphics object to paint with
+ * @param c The JComponent to paint.
+ */
+ public void paint(Graphics g, JComponent c)
+ {
+ Rectangle r = new Rectangle();
+ SwingUtilities.calculateInnerArea(c, r);
+ Color saved = g.getColor();
+
+ JSeparator s;
+ if (c instanceof JSeparator)
+ s = (JSeparator) c;
+ else
+ return;
+
+ if (s.getOrientation() == JSeparator.HORIZONTAL)
+ {
+ int midAB = r.height / 2;
+ g.setColor(shadow);
+ g.drawLine(r.x, r.y + midAB - 1, r.x + r.width, r.y + midAB - 1);
+
+ g.setColor(highlight);
+ g.fillRect(r.x, r.y + midAB, r.x + r.width, r.y + midAB);
+ }
+ else
+ {
+ int midAD = r.height / 2 + r.y;
+ g.setColor(shadow);
+ g.drawLine(r.x, r.y, r.x, r.y + r.height);
+
+ g.setColor(highlight);
+ g.fillRect(r.x + midAD, r.y + r.height, r.x + midAD, r.y + r.height);
+ }
+ g.setColor(saved);
+ }
+
+ /**
+ * This method returns the preferred size of the
+ * JComponent.
+ *
+ * @param c The JComponent to measure.
+ *
+ * @return The preferred size.
+ */
+ public Dimension getPreferredSize(JComponent c)
+ {
+ Dimension pref = new Dimension(2, 0);
+ if (c instanceof JSeparator)
+ {
+ JSeparator s = (JSeparator) c;
+ if (s.getOrientation() == JSeparator.HORIZONTAL)
+ pref = new Dimension(0, 2);
+ }
+ return pref;
+ }
+
+ /**
+ * This method returns the minimum size of the
+ * JComponent.
+ *
+ * @param c The JComponent to measure.
+ *
+ * @return The minimum size.
+ */
+ public Dimension getMinimumSize(JComponent c)
+ {
+ return new Dimension(0, 0);
+ }
+
+ /**
+ * This method returns the maximum size of the
+ * JComponent.
+ *
+ * @param c The JComponent to measure.
+ *
+ * @return The maximum size.
+ */
+ public Dimension getMaximumSize(JComponent c)
+ {
+ return new Dimension(Short.MAX_VALUE,
+ Short.MAX_VALUE);
+ }
+}