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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/swing/plaf/metal/MetalSeparatorUI.java
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+/* MetalSeparatorUI.java
+ Copyright (C) 2005 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.metal;
+
+import java.awt.Color;
+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.basic.BasicSeparatorUI;
+
+/**
+ * A UI delegate for the {@link JSeparator} component.
+ */
+public class MetalSeparatorUI
+ extends BasicSeparatorUI
+{
+
+ // FIXME: maybe replace by a Map of instances when this becomes stateful
+ /** The shared UI instance for MetalSeparatorUIs */
+ private static MetalSeparatorUI instance;
+
+ /**
+ * Constructs a new instance of <code>MetalSeparatorUI</code>.
+ */
+ public MetalSeparatorUI()
+ {
+ super();
+ }
+
+ /**
+ * Returns a shared instance of <code>MetalSeparatorUI</code>.
+ *
+ * @param component the component for which we return an UI instance
+ *
+ * @return A shared instance of <code>MetalSeparatorUI</code>.
+ */
+ public static ComponentUI createUI(JComponent component)
+ {
+ if (instance == null)
+ instance = new MetalSeparatorUI();
+ return instance;
+ }
+
+ /**
+ * The separator is made of two lines. The top line will be
+ * the Metal theme color separatorForeground (or left line if it's vertical).
+ * The bottom or right line will be the Metal theme color
+ * separatorBackground.
+ * 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();
+ Color c1 = UIManager.getColor("Separator.foreground");
+ Color c2 = UIManager.getColor("Separator.background");
+ JSeparator s;
+ if (c instanceof JSeparator)
+ s = (JSeparator) c;
+ else
+ return;
+
+ if (s.getOrientation() == JSeparator.HORIZONTAL)
+ {
+ int midAB = r.height / 2;
+ g.setColor(c1);
+ g.drawLine(r.x, r.y + midAB - 1, r.x + r.width, r.y + midAB - 1);
+
+ g.setColor(c2);
+ g.fillRect(r.x, r.y + midAB, r.x + r.width, r.y + midAB);
+ }
+ else
+ {
+ int midAD = r.height / 2 + r.y;
+ g.setColor(c1);
+ g.drawLine(r.x, r.y, r.x, r.y + r.height);
+
+ g.setColor(c2);
+ g.fillRect(r.x + midAD, r.y + r.height, r.x + midAD, r.y + r.height);
+ }
+ g.setColor(saved);
+ }
+}