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+/* SwingListPeer.java -- A Swing based peer for AWT lists
+ Copyright (C) 2006, 2007 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.Color;
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.List;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.event.FocusEvent;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+import java.awt.peer.ListPeer;
+
+import javax.swing.DefaultListModel;
+import javax.swing.JComponent;
+import javax.swing.JList;
+import javax.swing.JScrollPane;
+import javax.swing.ListSelectionModel;
+
+public class SwingListPeer
+ extends SwingComponentPeer
+ implements ListPeer
+{
+
+ /**
+ * A spezialized Swing scroller used to hold the list.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+ private class SwingList
+ extends JScrollPane
+ implements SwingComponent
+ {
+
+ SwingList(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);
+ }
+
+ /**
+ * Handles focus events by forwarding it to <code>processFocusEvent()</code>.
+ *
+ * @param ev the Focus event
+ */
+ public void handleFocusEvent(FocusEvent ev)
+ {
+ processFocusEvent(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 SwingListPeer.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 (SwingListPeer.this.awtComponent != null)
+ retVal = SwingListPeer.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 SwingListPeer.this.createImage(w, h);
+ }
+
+ public Graphics getGraphics()
+ {
+ return SwingListPeer.this.getGraphics();
+ }
+
+ public Container getParent()
+ {
+ Container par = null;
+ if (SwingListPeer.this.awtComponent != null)
+ par = SwingListPeer.this.awtComponent.getParent();
+ return par;
+ }
+ }
+
+ /**
+ * The actual Swing JList.
+ */
+ private JList jList;
+
+ private DefaultListModel listModel;
+
+ public SwingListPeer(List list)
+ {
+ super();
+ listModel = new DefaultListModel();
+ jList = new JList(listModel);
+ SwingList swingList = new SwingList(jList);
+ init(list, swingList);
+
+ // Pull over the items from the list.
+ String[] items = list.getItems();
+ for (int i = 0 ; i < items.length; i++)
+ addItem(items[i], i);
+ }
+
+ public void add(String item, int index)
+ {
+ if (listModel != null)
+ listModel.add(index, item);
+ }
+
+ public void addItem(String item, int index)
+ {
+ if (listModel != null)
+ listModel.add(index, item);
+ }
+
+ public void clear()
+ {
+ if (listModel != null)
+ listModel.clear();
+ }
+
+ public void delItems(int startIndex, int endIndex)
+ {
+ if (listModel != null)
+ listModel.removeRange(startIndex, endIndex);
+ }
+
+ public void deselect(int index)
+ {
+ if (jList != null)
+ {
+ jList.getSelectionModel().removeSelectionInterval(index, index);
+ }
+ }
+
+ public Dimension getMinimumSize(int s)
+ {
+ Dimension d = null;
+ if (jList != null)
+ {
+ d = jList.getComponent(s).getMinimumSize();
+ }
+ return d;
+ }
+
+ public Dimension getPreferredSize(int s)
+ {
+ Dimension d = null;
+ if (jList != null)
+ {
+ d = jList.getComponent(s).getPreferredSize();
+ }
+ return d;
+ }
+
+ public int[] getSelectedIndexes()
+ {
+ int[] sel = null;
+ if (jList != null)
+ {
+ sel = jList.getSelectedIndices();
+ }
+ return sel;
+ }
+
+ public void makeVisible(int index)
+ {
+ if (jList != null)
+ {
+ Component comp = jList.getComponent(index);
+ jList.scrollRectToVisible(comp.getBounds());
+ }
+ }
+
+ public Dimension minimumSize(int s)
+ {
+ Dimension d = null;
+ if (jList != null)
+ {
+ d = jList.getComponent(s).getMinimumSize();
+ }
+ return d;
+ }
+
+ public Dimension preferredSize(int s)
+ {
+ Dimension d = null;
+ if (jList != null)
+ {
+ d = jList.getComponent(s).getPreferredSize();
+ }
+ return d;
+ }
+
+ public void removeAll()
+ {
+ if (jList != null)
+ {
+ jList.removeAll();
+ }
+ }
+
+ public void select(int index)
+ {
+ if (jList != null)
+ {
+ jList.setSelectedIndex(index);
+ }
+ }
+
+ public void setMultipleMode(boolean multi)
+ {
+ if (jList != null)
+ {
+ jList.setSelectionMode(multi
+ ? ListSelectionModel.MULTIPLE_INTERVAL_SELECTION
+ : ListSelectionModel.SINGLE_SELECTION);
+ }
+ }
+
+ public void setMultipleSelections(boolean multi)
+ {
+ if (jList != null)
+ {
+ jList.setSelectionMode(multi
+ ? ListSelectionModel.MULTIPLE_INTERVAL_SELECTION
+ : ListSelectionModel.SINGLE_SELECTION);
+ }
+ }
+
+ public void reshape(int x, int y, int width, int height)
+ {
+ if (swingComponent != null)
+ {
+ swingComponent.getJComponent().setBounds(x, y, width, height);
+ swingComponent.getJComponent().validate();
+ }
+ }
+
+ protected void peerPaint(Graphics g, boolean update)
+ {
+ super.peerPaint(g, update);
+ jList.doLayout();
+ jList.list();
+
+ Rectangle r = getBounds();
+ g.setColor(Color.RED);
+ g.drawRect(r.x, r.y, r.width, r.height);
+ }
+}