listselectiondialog.java

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

        // Set icons

        setIconImages( owner.getIconImages( ) );


        //----  List panel

        GridBagLayout gridBag = new GridBagLayout( );
        GridBagConstraints gbc = new GridBagConstraints( );

        JPanel listPanel = new JPanel( gridBag );
        GuiUtilities.setPaddedLineBorder( listPanel );

        int gridY = 0;

        // Label: list

        JLabel listLabel = new FLabel( listLabelStr );

        gbc.gridx = 0;
        gbc.gridy = gridY++;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.0;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.FIRST_LINE_START;
        gbc.fill = GridBagConstraints.NONE;
        gbc.insets = new Insets( 0, 0, 0, 0 );
        gridBag.setConstraints( listLabel, gbc );
        listPanel.add( listLabel );

        // List

        list = new JList( listStrs );
        AppFont.MAIN.setFont( list );
        int cellHeight = getFontMetrics( list.getFont( ) ).getHeight( ) + 2;
        list.setFixedCellHeight( cellHeight );
        list.setVisibleRowCount( listStrs.length );
        list.setCellRenderer( new SelectionListCellRenderer( ) );
        list.addListSelectionListener( this );

        // Scroll pane: list

        JScrollPane listScrollPane = new JScrollPane( list, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                                                      JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED );
        int width = LIST_NUM_COLUMNS * GuiUtilities.getCharWidth( '0', getFontMetrics( list.getFont( ) ) );
        int height = listStrs.length * cellHeight;
        listScrollPane.getViewport( ).setPreferredSize( new Dimension( width, height ) );

        gbc.gridx = 0;
        gbc.gridy = gridY++;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.0;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.FIRST_LINE_START;
        gbc.fill = GridBagConstraints.NONE;
        gbc.insets = new Insets( 4, 0, 0, 0 );
        gridBag.setConstraints( listScrollPane, gbc );
        listPanel.add( listScrollPane );


        //----  Button panel: select all, deselect all

        JPanel selectionButtonPanel = new JPanel( new GridLayout( 1, 0, 8, 0 ) );

        // Button: select all

        selectAllButton = new FButton( SELECT_ALL_STR );
        selectAllButton.setToolTipText( SELECT_ALL_TOOL_TIP_STR );
        selectAllButton.setActionCommand( Command.SELECT_ALL );
        selectAllButton.addActionListener( this );
        selectionButtonPanel.add( selectAllButton );

        // Button: deselect all

        deselectAllButton = new FButton( DESELECT_ALL_STR );
        deselectAllButton.setToolTipText( DESELECT_ALL_TOOL_TIP_STR );
        deselectAllButton.setActionCommand( Command.DESELECT_ALL );
        deselectAllButton.addActionListener( this );
        selectionButtonPanel.add( deselectAllButton );


        //----  Button panel: OK, cancel

        JPanel okCancelButtonPanel = new JPanel( new GridLayout( 1, 0, 8, 0 ) );

        // Button: OK

        okButton = new FButton( AppConstants.OK_STR );
        okButton.setActionCommand( Command.ACCEPT );
        okButton.addActionListener( this );
        okCancelButtonPanel.add( okButton );

        // Button: cancel

        JButton cancelButton = new FButton( AppConstants.CANCEL_STR );
        cancelButton.setActionCommand( Command.CLOSE );
        cancelButton.addActionListener( this );
        okCancelButtonPanel.add( cancelButton );


        //----  Button panel

        JPanel buttonPanel = new JPanel( gridBag );
        buttonPanel.setBorder( BorderFactory.createEmptyBorder( 2, 24, 3, 24 ) );

        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.5;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.CENTER;
        gbc.fill = GridBagConstraints.NONE;
        gbc.insets = new Insets( 0, 0, 0, 12 );
        gridBag.setConstraints( selectionButtonPanel, gbc );
        buttonPanel.add( selectionButtonPanel );

        gbc.gridx = 1;
        gbc.gridy = 0;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.5;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.CENTER;
        gbc.fill = GridBagConstraints.NONE;
        gbc.insets = new Insets( 0, 12, 0, 0 );
        gridBag.setConstraints( okCancelButtonPanel, gbc );
        buttonPanel.add( okCancelButtonPanel );


        //----  Main panel

        JPanel mainPanel = new JPanel( gridBag );
        mainPanel.setBorder( BorderFactory.createEmptyBorder( 2, 2, 2, 2 ) );

        gridY = 0;

        gbc.gridx = 0;
        gbc.gridy = gridY++;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.0;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets( 0, 0, 0, 0 );
        gridBag.setConstraints( listPanel, gbc );
        mainPanel.add( listPanel );

        gbc.gridx = 0;
        gbc.gridy = gridY++;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.0;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets( 4, 0, 0, 0 );
        gridBag.setConstraints( buttonPanel, gbc );
        mainPanel.add( buttonPanel );


        //----  Window

        // Set content pane

        setContentPane( mainPanel );

        // Update components

        updateComponents( );

        // Set orientation of components according to locale

        App.applyOrientationByLocale( this );

        // Add key commands to action map

        KeyAction.create( mainPanel, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, KEY_COMMANDS, this );

        // Dispose of window explicitly

        setDefaultCloseOperation( DO_NOTHING_ON_CLOSE );

        // Handle window closing

        addWindowListener( new WindowEventHandler( ) );

        // Prevent dialog from being resized

        setResizable( false );

        // Resize dialog to its preferred size

        pack( );

        // Set location of dialog box

        if ( location == null )
            location = GuiUtilities.getComponentLocation( this, owner );
        setLocation( GuiUtilities.getComponentLocation( this, location ) );

        // Set default button

        getRootPane( ).setDefaultButton( okButton );

        // Show dialog

        setVisible( true );

    }

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

    private void updateComponents( )
    {
        boolean enabled = (list.getSelectedIndices( ).length < list.getModel( ).getSize( ));
        selectAllButton.setEnabled( enabled );

        enabled = !list.isSelectionEmpty( );
        deselectAllButton.setEnabled( enabled );
        okButton.setEnabled( enabled );

        Util.moveFocus( this );
    }

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

    private void doSelectAll( )
    {
        list.setSelectionInterval( 0, list.getModel( ).getSize( ) - 1 );
    }

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

    private void doDeselectAll( )
    {
        list.clearSelection( );
    }

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

    private void doAccept( )
    {
        accepted = true;
        doClose( );
    }

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

    private void doClose( )
    {
        location = getLocation( );
        setVisible( false );
        dispose( );
    }

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

////////////////////////////////////////////////////////////////////////
//  Class variables
////////////////////////////////////////////////////////////////////////

    private static  Point   location;

////////////////////////////////////////////////////////////////////////
//  Instance variables
////////////////////////////////////////////////////////////////////////

    private boolean accepted;
    private JList   list;
    private JButton selectAllButton;
    private JButton deselectAllButton;
    private JButton okButton;

}

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