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/* QtListPeer.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 gnu.java.awt.peer.qt;

import java.awt.Dimension;

import java.awt.List;

import java.awt.event.ActionEvent;

import java.awt.event.ItemEvent;

import java.awt.peer.ListPeer;

public class QtListPeer extends QtComponentPeer implements ListPeer

{

  public QtListPeer( QtToolkit kit, List owner )

  {

    super( kit, owner );

  }

  public native void init();

  protected void setup()

  {

    super.setup();

    List o = (List)owner;

    // Multiple selection

    setMultipleMode(o.isMultipleMode());

    // Add initial list items.

    String[] items = o.getItems();

    for (int i = 0; i < items.length; i++)

      add(items[i], i);

    // Initial selections.

    int[] selected = o.getSelectedIndexes();

    for (int i = 0; i < selected.length; i++)

      select(selected[i]);

    // If no initial selection, use 0.

    if(selected.length == 0 && items.length > 0)

      select( 0 );

  }

  private boolean ignoreNextSelect = false;

  /**

   * Called back when a row is selected. -1 if no row is selected.

   */

  private void fireChoice( int index )

  {

    ignoreNextSelect = true;

    if( index == -1)

      ((List)owner).deselect( ((List)owner).getSelectedIndex() );

      else

        {

          ((List)owner).select( index );

          ItemEvent e = new ItemEvent((List)owner,

                                      ItemEvent.ITEM_STATE_CHANGED,

                                      ""+index,

                                      ItemEvent.SELECTED);

          QtToolkit.eventQueue.postEvent(e);

        }

  }

  /**

   * Called back when an item is double-clicked.

   */

  private void itemDoubleClicked( int index, int modifiers )

  {

    ActionEvent e = new ActionEvent(owner,

                                    ActionEvent.ACTION_PERFORMED,

                                    ((List)owner).getItem( index ),

                                    System.currentTimeMillis(),

                                    modifiers);

    QtToolkit.eventQueue.postEvent(e);

  }

  private native void select(int index, boolean selected);

  // ************ Public methods *********************

  public native void add(String item, int index);

  public void addItem(String item, int index)

  {

    add(item, index);

  }

  public void clear()

  {

    removeAll();

  }

  /**

   * Deletes items from the starting index to the ending index (inclusive).

   */

  public native void delItems(int start_index, int end_index);

  public void deselect(int index)

  {

    if( ignoreNextSelect == true )

      ignoreNextSelect = false;

    else

      select(index, false);

  }

  public native int[] getSelectedIndexes();

  public native void makeVisible(int index);

  public Dimension minimumSize(int s)

  {

    return getMinimumSize(s);

  }

  public Dimension preferredSize(int s)

  {

    return getPreferredSize(s);

  }

  public void removeAll()

  {

    delItems(0, ((List)owner).getItemCount() - 1);

  }

  public void select(int index)

  {

    if( ignoreNextSelect == true )

      ignoreNextSelect = false;

    else

      select(index, true);

  }

  /**

   * Sets multiple-selection mode.

   * Note there's a bug in multiple selection in Qt 4.0.0, use 4.0.1.

   */

  public native void setMultipleMode(boolean multi);

  public void setMultipleSelections(boolean multi)

  {

    setMultipleMode(multi);

  }

  public Dimension getPreferredSize(int s)

  {

    // FIXME

    return getPreferredSize();

  }

  public Dimension getMinimumSize(int s)

  {

    // FIXME

    return getMinimumSize();

  }

}