Merged gcj-eclipse branch to trunk.

From-SVN: r120621

libjava/classpath/gnu/java/awt/peer/swing/SwingTextAreaPeer.java

@@ -0,0 +1,317 @@
+/* SwingTextAreaPeer.java -- A Swing based peer for AWT textareas
+   Copyright (C)  2006  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 gnu.java.awt.peer.swing;
+
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.TextArea;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+import java.awt.im.InputMethodRequests;
+import java.awt.peer.TextAreaPeer;
+
+import javax.swing.JComponent;
+import javax.swing.JScrollPane;
+import javax.swing.JTextArea;
+import javax.swing.text.BadLocationException;
+
+public class SwingTextAreaPeer
+    extends SwingComponentPeer
+    implements TextAreaPeer
+{
+
+  /**
+   * A spezialized Swing scroller used to hold the textarea. 
+   *
+   * @author Roman Kennke (kennke@aicas.com)
+   */
+  private class SwingTextArea
+    extends JScrollPane
+    implements SwingComponent
+  {
+
+    SwingTextArea(Component comp)
+    {
+      super(comp, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
+            JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
+    }
+
+    /**
+     * Returns this label.
+     *
+     * @return <code>this</code>
+     */
+    public JComponent getJComponent()
+    {
+      return this;
+    }
+
+    /**
+     * Handles mouse events by forwarding it to
+     * <code>processMouseEvent()</code>.
+     *
+     * @param ev the mouse event
+     */
+    public void handleMouseEvent(MouseEvent ev)
+    {
+      ev.setSource(this);
+      dispatchEvent(ev);
+    }
+
+    /**
+     * Force lightweight mouse dispatching.
+     */
+    public boolean isLightweight()
+    {
+      return false;
+    }
+
+    /**
+     * Handles mouse motion events by forwarding it to
+     * <code>processMouseMotionEvent()</code>.
+     *
+     * @param ev the mouse motion event
+     */
+    public void handleMouseMotionEvent(MouseEvent ev)
+    {
+      processMouseMotionEvent(ev);
+    }
+
+    /**
+     * Handles key events by forwarding it to <code>processKeyEvent()</code>.
+     *
+     * @param ev the mouse event
+     */
+    public void handleKeyEvent(KeyEvent ev)
+    {
+      processKeyEvent(ev);
+    }
+
+    /**
+     * Overridden so that this method returns the correct value even without a
+     * peer.
+     *
+     * @return the screen location of the button
+     */
+    public Point getLocationOnScreen()
+    {
+      return SwingTextAreaPeer.this.getLocationOnScreen();
+    }
+
+    /**
+     * Overridden so that the isShowing method returns the correct value for the
+     * swing button, even if it has no peer on its own.
+     *
+     * @return <code>true</code> if the button is currently showing,
+     *         <code>false</code> otherwise
+     */
+    public boolean isShowing()
+    {
+      boolean retVal = false;
+      if (SwingTextAreaPeer.this.awtComponent != null)
+        retVal = SwingTextAreaPeer.this.awtComponent.isShowing();
+      return retVal;
+    }
+
+    /**
+     * Overridden, so that the Swing button can create an Image without its
+     * own peer.
+     *
+     * @param w the width of the image
+     * @param h the height of the image
+     *
+     * @return an image
+     */
+    public Image createImage(int w, int h)
+    {
+      return SwingTextAreaPeer.this.createImage(w, h);
+    }
+
+    public Graphics getGraphics()
+    {
+      return SwingTextAreaPeer.this.getGraphics();
+    }
+
+    public Container getParent()
+    {
+      Container par = null;
+      if (SwingTextAreaPeer.this.awtComponent != null)
+        par = SwingTextAreaPeer.this.awtComponent.getParent();
+      return par;
+    }
+  }
+
+  /**
+   * The actual JTextArea.
+   */
+  private JTextArea jTextArea;
+
+  public SwingTextAreaPeer(TextArea textArea)
+  {
+    super();
+    System.err.println("new SwingTextAreaPeer");
+    jTextArea = new JTextArea();
+    SwingTextArea swingArea = new SwingTextArea(jTextArea);
+    init(textArea, swingArea);
+
+    // Pull over the text from the text area.
+    setText(textArea.getText());
+  }
+
+  public Dimension getMinimumSize(int rows, int cols)
+  {
+    // TODO Auto-generated method stub
+    return null;
+  }
+
+  public Dimension getPreferredSize(int rows, int cols)
+  {
+    // TODO Auto-generated method stub
+    return null;
+  }
+
+  public void insert(String text, int pos)
+  {
+    jTextArea.insert(text, pos);
+  }
+
+  public void insertText(String text, int pos)
+  {
+    jTextArea.insert(text, pos);
+  }
+
+  public Dimension minimumSize(int rows, int cols)
+  {
+    // TODO Auto-generated method stub
+    return null;
+  }
+
+  public Dimension preferredSize(int rows, int cols)
+  {
+    // TODO Auto-generated method stub
+    return null;
+  }
+
+  public void replaceRange(String text, int start, int end)
+  {
+    jTextArea.replaceRange(text, start, end);
+  }
+
+  public void replaceText(String text, int start, int end)
+  {
+    jTextArea.replaceRange(text, start, end);
+  }
+
+  public long filterEvents(long filter)
+  {
+    // TODO Auto-generated method stub
+    return 0;
+  }
+
+  public int getCaretPosition()
+  {
+    return jTextArea.getCaretPosition();
+  }
+
+  public Rectangle getCharacterBounds(int pos)
+  {
+    Rectangle r;
+    try
+      {
+        return jTextArea.modelToView(pos);
+      }
+    catch (BadLocationException ex)
+      {
+        r = null;
+      }
+    return r;
+  }
+
+  public int getIndexAtPoint(int x, int y)
+  {
+    return jTextArea.viewToModel(new Point(x, y));
+  }
+
+  public InputMethodRequests getInputMethodRequests()
+  {
+    // TODO Auto-generated method stub
+    return null;
+  }
+
+  public int getSelectionEnd()
+  {
+    return jTextArea.getSelectionEnd();
+  }
+
+  public int getSelectionStart()
+  {
+    return jTextArea.getSelectionStart();
+  }
+
+  public String getText()
+  {
+    return jTextArea.getText();
+  }
+
+  public void select(int start, int end)
+  {
+    jTextArea.select(start, end);
+  }
+
+  public void setCaretPosition(int pos)
+  {
+    jTextArea.setCaretPosition(pos);
+  }
+
+  public void setEditable(boolean editable)
+  {
+    jTextArea.setEditable(editable);
+  }
+
+  public void setText(String text)
+  {
+    System.err.println("setText: " + text);
+    jTextArea.setText(text);
+  }
+
+}