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1 files changed, 292 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/plaf/basic/BasicToolTipUI.java b/libjava/classpath/javax/swing/plaf/basic/BasicToolTipUI.java
new file mode 100644
index 000000000..37c084bb8
--- /dev/null
+++ b/libjava/classpath/javax/swing/plaf/basic/BasicToolTipUI.java
@@ -0,0 +1,292 @@
+/* BasicToolTipUI.java --
+   Copyright (C) 2004, 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.basic;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Graphics;
+import java.awt.Insets;
+import java.awt.Rectangle;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+
+import javax.swing.JComponent;
+import javax.swing.JToolTip;
+import javax.swing.LookAndFeel;
+import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.ToolTipUI;
+import javax.swing.text.View;
+
+/**
+ * This is the Basic Look and Feel UI class for JToolTip.
+ */
+public class BasicToolTipUI extends ToolTipUI
+{
+
+  /**
+   * Receives notification when a property of the JToolTip changes.
+   * This updates the HTML renderer if appropriate.
+   */
+  private class PropertyChangeHandler
+    implements PropertyChangeListener
+  {
+
+    public void propertyChange(PropertyChangeEvent e)
+    {
+      String prop = e.getPropertyName();
+      if (prop.equals("tiptext") || prop.equals("font")
+          || prop.equals("foreground"))
+        {
+          JToolTip tip = (JToolTip) e.getSource();
+          String text = tip.getTipText();
+          BasicHTML.updateRenderer(tip, text);
+        }
+    }
+
+  }
+
+  /** The shared instance of BasicToolTipUI used for all ToolTips. */
+  private static BasicToolTipUI shared;
+
+  /** The tooltip's text */
+  private String text;
+
+  /**
+   * Handles property changes.
+   */
+  private PropertyChangeListener propertyChangeHandler;
+
+  /**
+   * Creates a new BasicToolTipUI object.
+   */
+  public BasicToolTipUI()
+  {
+    super();
+  }
+
+  /**
+   * This method creates a new BasicToolTip UI for the given
+   * JComponent.
+   *
+   * @param c The JComponent to create a UI for.
+   *
+   * @return A BasicToolTipUI that can be used by the given JComponent.
+   */
+  public static ComponentUI createUI(JComponent c)
+  {
+    if (shared == null)
+      shared = new BasicToolTipUI();
+    return shared;
+  }
+
+  /**
+   * This method returns the msximum size of the given JComponent.
+   *
+   * @param c The JComponent to find a maximum size for.
+   *
+   * @return The maximum size.
+   */
+  public Dimension getMaximumSize(JComponent c)
+  {
+    Dimension d = getPreferredSize(c);
+    View view = (View) c.getClientProperty(BasicHTML.propertyKey);
+    if (view != null)
+      d.width += view.getMaximumSpan(View.X_AXIS)
+                 - view.getPreferredSpan(View.X_AXIS);
+    return d;
+  }
+
+  /**
+   * This method returns the minimum size of the given JComponent.
+   *
+   * @param c The JComponent to find a minimum size for.
+   *
+   * @return The minimum size.
+   */
+  public Dimension getMinimumSize(JComponent c)
+  {
+    Dimension d = getPreferredSize(c);
+    View view = (View) c.getClientProperty(BasicHTML.propertyKey);
+    if (view != null)
+      d.width -= view.getPreferredSpan(View.X_AXIS)
+                 - view.getMinimumSpan(View.X_AXIS);
+    return d;
+  }
+
+  /**
+   * This method returns the preferred size of the given JComponent.
+   *
+   * @param c The JComponent to find a preferred size for.
+   *
+   * @return The preferred size.
+   */
+  public Dimension getPreferredSize(JComponent c)
+  {
+    JToolTip tip = (JToolTip) c;
+    String str = tip.getTipText();
+    FontMetrics fm = c.getFontMetrics(c.getFont());
+    Insets i = c.getInsets();
+    Dimension d = new Dimension(i.left + i.right, i.top + i.bottom);
+    if (str != null && ! str.equals(""))
+      {
+        View view = (View) c.getClientProperty(BasicHTML.propertyKey);
+        if (view != null)
+          {
+            d.width += (int) view.getPreferredSpan(View.X_AXIS);
+            d.height += (int) view.getPreferredSpan(View.Y_AXIS);
+          }
+        else
+          {
+            d.width += fm.stringWidth(str) + 6;
+            d.height += fm.getHeight();
+          }
+      }
+    return d;
+  }
+
+  /**
+   * This method installs the defaults for the given JComponent.
+   *
+   * @param c The JComponent to install defaults for.
+   */
+  protected void installDefaults(JComponent c)
+  {
+    LookAndFeel.installColorsAndFont(c, "ToolTip.background",
+                                     "ToolTip.foreground", "ToolTip.font");
+    LookAndFeel.installBorder(c, "ToolTip.border");
+  }
+
+  /**
+   * This method installs the listeners for the given JComponent.
+   *
+   * @param c The JComponent to install listeners for.
+   */
+  protected void installListeners(JComponent c)
+  {
+    propertyChangeHandler = new PropertyChangeHandler();
+    c.addPropertyChangeListener(propertyChangeHandler);
+  }
+
+  /**
+   * This method installs the UI for the given JComponent.
+   *
+   * @param c The JComponent to install the UI for.
+   */
+  public void installUI(JComponent c)
+  {
+    c.setOpaque(true);
+    installDefaults(c);
+    BasicHTML.updateRenderer(c, ((JToolTip) c).getTipText());
+    installListeners(c);
+  }
+
+  /**
+   * This method paints the given JComponent with the given Graphics object.
+   *
+   * @param g The Graphics object to paint with.
+   * @param c The JComponent to paint.
+   */
+  public void paint(Graphics g, JComponent c)
+  {
+    JToolTip tip = (JToolTip) c;
+
+    String text = tip.getTipText();
+    Font font = c.getFont();
+    FontMetrics fm = c.getFontMetrics(font);
+    int ascent = fm.getAscent();
+    Insets i = c.getInsets();
+    Dimension size = c.getSize();
+    Rectangle paintR = new Rectangle(i.left, i.top,
+                                     size.width - i.left - i.right,
+                                     size.height - i.top - i.bottom);
+    Color saved = g.getColor();
+    Font oldFont = g.getFont();
+    g.setColor(Color.BLACK);
+
+    View view = (View) c.getClientProperty(BasicHTML.propertyKey);
+    if (view != null)
+      view.paint(g, paintR);
+    else
+      g.drawString(text, paintR.x + 3, paintR.y + ascent);
+
+    g.setFont(oldFont);
+    g.setColor(saved);
+  }
+
+  /**
+   * This method uninstalls the defaults for the given JComponent.
+   *
+   * @param c The JComponent to uninstall defaults for.
+   */
+  protected void uninstallDefaults(JComponent c)
+  {
+    c.setForeground(null);
+    c.setBackground(null);
+    c.setFont(null);
+    c.setBorder(null);
+  }
+
+  /**
+   * This method uninstalls listeners for the given JComponent.
+   *
+   * @param c The JComponent to uninstall listeners for.
+   */
+  protected void uninstallListeners(JComponent c)
+  {
+    if (propertyChangeHandler != null)
+      {
+        c.removePropertyChangeListener(propertyChangeHandler);
+        propertyChangeHandler = null;
+      }
+  }
+
+  /**
+   * This method uninstalls the UI for the given JComponent.
+   *
+   * @param c The JComponent to uninstall.
+   */
+  public void uninstallUI(JComponent c)
+  {
+    uninstallDefaults(c);
+    BasicHTML.updateRenderer(c, "");
+    uninstallListeners(c);
+  }
+}