listselectiondialog.java

FuncPlotter is a combined Java application and applet for displaying two-dimensional plots of explic

/*====================================================================*\

ListSelectionDialog.java

List selection dialog box class.

------------------------------------------------------------------------

This file is part of FuncPlotter, a combined Java application and applet
for plotting explicit functions in one variable.
Copyright 2005-2007 Andy Morgan-Richards.

FuncPlotter 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 3 of the License, or (at your
option) any later version.

This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

\*====================================================================*/


// IMPORTS


import gui.DashedBorder;
import gui.GuiUtilities;

import java.awt.Component;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Window;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.KeyStroke;
import javax.swing.ListCellRenderer;

import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

import util.KeyAction;

//----------------------------------------------------------------------


// LIST SELECTION DIALOG BOX CLASS


class ListSelectionDialog
    extends JDialog
    implements ActionListener, ListSelectionListener
{

////////////////////////////////////////////////////////////////////////
//  Constants
////////////////////////////////////////////////////////////////////////

    private static final    int LIST_NUM_COLUMNS    = 72;

    private static final    String  SELECT_ALL_STR              = "Select All";
    private static final    String  DESELECT_ALL_STR            = "Deselect All";
    private static final    String  SELECT_ALL_TOOL_TIP_STR     = "Select all items (Ctrl+A)";
    private static final    String  DESELECT_ALL_TOOL_TIP_STR   = "Deselect all items (Ctrl+D)";

    // Commands

    private interface Command
    {
        String  SELECT_ALL      = "selectAll";
        String  DESELECT_ALL    = "deselectAll";
        String  ACCEPT          = "accept";
        String  CLOSE           = "close";
    }

    private static final    KeyAction.CommandMap[]  KEY_COMMANDS    =
    {
        new KeyAction.CommandMap( KeyStroke.getKeyStroke( KeyEvent.VK_A, KeyEvent.CTRL_DOWN_MASK ),
                                  Command.SELECT_ALL ),
        new KeyAction.CommandMap( KeyStroke.getKeyStroke( KeyEvent.VK_D, KeyEvent.CTRL_DOWN_MASK ),
                                  Command.DESELECT_ALL ),
        new KeyAction.CommandMap( KeyStroke.getKeyStroke( KeyEvent.VK_ESCAPE, 0 ),
                                  Command.CLOSE )
    };

////////////////////////////////////////////////////////////////////////
//  Member classes : non-inner classes
////////////////////////////////////////////////////////////////////////


    // SELECTION LIST CELL RENDERER CLASS


    private static class SelectionListCellRenderer
        extends JLabel
        implements ListCellRenderer
    {

    ////////////////////////////////////////////////////////////////////
    //  Constructors
    ////////////////////////////////////////////////////////////////////

        private SelectionListCellRenderer( )
        {
            AppFont.MAIN.setFont( this );
            setOpaque( true );
        }

        //--------------------------------------------------------------

    ////////////////////////////////////////////////////////////////////
    //  Instance methods : ListCellRenderer interface
    ////////////////////////////////////////////////////////////////////

        public Component getListCellRendererComponent( JList   list,
                                                       Object  value,
                                                       int     index,
                                                       boolean isSelected,
                                                       boolean cellHasFocus )
        {
            setBackground( isSelected ? list.getSelectionBackground( ) : list.getBackground( ) );
            setForeground( isSelected ? list.getSelectionForeground( ) : list.getForeground( ) );
            setBorder( cellHasFocus ? BorderFactory.createCompoundBorder(
                                                            new DashedBorder( 2.0f ),
                                                            BorderFactory.createEmptyBorder( 0, 2, 0, 2 ) )
                                    : BorderFactory.createEmptyBorder( 1, 3, 1, 3 ) );
            setText( value.toString( ) );
            return this;
        }

        //--------------------------------------------------------------

    }

    //==================================================================

////////////////////////////////////////////////////////////////////////
//  Member classes : inner classes
////////////////////////////////////////////////////////////////////////


    // WINDOW EVENT HANDLER CLASS


    private class WindowEventHandler
        extends WindowAdapter
    {

    ////////////////////////////////////////////////////////////////////
    //  Constructors
    ////////////////////////////////////////////////////////////////////

        private WindowEventHandler( )
        {
        }

        //--------------------------------------------------------------

    ////////////////////////////////////////////////////////////////////
    //  Instance methods : overriding methods
    ////////////////////////////////////////////////////////////////////

        public void windowClosing( WindowEvent event )
        {
            doClose( );
        }

        //--------------------------------------------------------------

    }

    //==================================================================

////////////////////////////////////////////////////////////////////////
//  Constructors
////////////////////////////////////////////////////////////////////////

    private ListSelectionDialog( Window   owner,
                                 String   titleStr,
                                 String   listLabelStr,
                                 String[] listStrs )
    {
        super( owner, titleStr, Dialog.ModalityType.APPLICATION_MODAL );
        init( owner, listLabelStr, listStrs );
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Class methods
////////////////////////////////////////////////////////////////////////

    public static ListSelectionDialog showDialog( Window   owner,
                                                  String   titleStr,
                                                  String   listLabelStr,
                                                  String[] listStrs )
    {
        return new ListSelectionDialog( owner, titleStr, listLabelStr, listStrs );
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Instance methods : ActionListener interface
////////////////////////////////////////////////////////////////////////

    public void actionPerformed( ActionEvent event )
    {
        try
        {
            String command = event.getActionCommand( );
            String methodName = AppConstants.COMMAND_METHOD_PREFIX +
                                        command.substring( 0, 1 ).toUpperCase( ) + command.substring( 1 );
            Util.getDeclaredMethod( getClass( ), methodName, false ).invoke( this );
        }
        catch ( Exception e )
        {
            e.printStackTrace( );
        }
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Instance methods : ListSelectionListener interface
////////////////////////////////////////////////////////////////////////

    public void valueChanged( ListSelectionEvent event )
    {
        if ( !event.getValueIsAdjusting( ) )
            updateComponents( );
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Instance methods
////////////////////////////////////////////////////////////////////////

    public boolean isAccepted( )
    {
        return accepted;
    }

    //------------------------------------------------------------------

    public int[] getSelections( )
    {
        return list.getSelectedIndices( );
    }

    //------------------------------------------------------------------

    private void init( Window   owner,
                       String   listLabelStr,
                       String[] listStrs )
    {