/* * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * -Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * -Redistribution in binary form must reproduct the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * * Neither the name of Sun Microsystems, Inc. or the names of contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that Software is not designed, licensed or intended for * use in the design, construction, operation or maintenance of any nuclear * facility. */ /* * @(#)TableDemo.java 1.12 03/01/23 */ import javax.swing.*; import javax.swing.event.*; import javax.swing.text.*; import javax.swing.table.*; import javax.swing.border.*; import javax.swing.colorchooser.*; import javax.swing.filechooser.*; import javax.accessibility.*; import java.awt.*; import java.awt.event.*; import java.beans.*; import java.util.*; import java.io.*; import java.applet.*; import java.net.*; /** * Table demo * * @version 1.12 01/23/03 * @author Philip Milne * @author Steve Wilson */ public class TableDemo extends DemoModule { JTable tableView; JScrollPane scrollpane; Dimension origin = new Dimension(0, 0); JCheckBox isColumnReorderingAllowedCheckBox; JCheckBox showHorizontalLinesCheckBox; JCheckBox showVerticalLinesCheckBox; JCheckBox isColumnSelectionAllowedCheckBox; JCheckBox isRowSelectionAllowedCheckBox; // JCheckBox isRowAndColumnSelectionAllowedCheckBox; JLabel interCellSpacingLabel; JLabel rowHeightLabel; JSlider interCellSpacingSlider; JSlider rowHeightSlider; JComboBox selectionModeComboBox = null; JComboBox resizeModeComboBox = null; JPanel controlPanel; JScrollPane tableAggregate; String path = "ImageClub/food/"; final int INITIAL_ROWHEIGHT = 33; /** * main method allows us to run as a standalone demo. */ public static void main(String[] args) { TableDemo demo = new TableDemo(null); demo.mainImpl(); } /** * TableDemo Constructor */ public TableDemo(SwingSet2 swingset) { super(swingset, "TableDemo", "toolbar/JTable.gif"); getDemoPanel().setLayout(new BorderLayout()); controlPanel = new JPanel(new FlowLayout(FlowLayout.LEFT)); JPanel column1 = new JPanel (new ColumnLayout() ); JPanel column2 = new JPanel (new ColumnLayout() ); JPanel column3 = new JPanel (new ColumnLayout() ); getDemoPanel().add(controlPanel, BorderLayout.NORTH); Vector relatedComponents = new Vector(); // start column 1 isColumnReorderingAllowedCheckBox = new JCheckBox(getString("TableDemo.reordering_allowed"), true); column1.add(isColumnReorderingAllowedCheckBox); isColumnReorderingAllowedCheckBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { boolean flag = ((JCheckBox)e.getSource()).isSelected(); tableView.getTableHeader().setReorderingAllowed(flag); tableView.repaint(); } }); showHorizontalLinesCheckBox = new JCheckBox(getString("TableDemo.horz_lines"), true); column1.add(showHorizontalLinesCheckBox); showHorizontalLinesCheckBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { boolean flag = ((JCheckBox)e.getSource()).isSelected(); tableView.setShowHorizontalLines(flag); ; tableView.repaint(); } }); showVerticalLinesCheckBox = new JCheckBox(getString("TableDemo.vert_lines"), true); column1.add(showVerticalLinesCheckBox); showVerticalLinesCheckBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { boolean flag = ((JCheckBox)e.getSource()).isSelected(); tableView.setShowVerticalLines(flag); ; tableView.repaint(); } }); // Show that showHorizontal/Vertical controls are related relatedComponents.removeAllElements(); relatedComponents.add(showHorizontalLinesCheckBox); relatedComponents.add(showVerticalLinesCheckBox); buildAccessibleGroup(relatedComponents); interCellSpacingLabel = new JLabel(getString("TableDemo.intercell_spacing_colon")); column1.add(interCellSpacingLabel); interCellSpacingSlider = new JSlider(JSlider.HORIZONTAL, 0, 10, 1); interCellSpacingSlider.getAccessibleContext().setAccessibleName(getString("TableDemo.intercell_spacing")); interCellSpacingLabel.setLabelFor(interCellSpacingSlider); column1.add(interCellSpacingSlider); interCellSpacingSlider.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent e) { int spacing = ((JSlider)e.getSource()).getValue(); tableView.setIntercellSpacing(new Dimension(spacing, spacing)); tableView.repaint(); } }); controlPanel.add(column1); // start column 2 isColumnSelectionAllowedCheckBox = new JCheckBox(getString("TableDemo.column_selection"), false); column2.add(isColumnSelectionAllowedCheckBox); isColumnSelectionAllowedCheckBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { boolean flag = ((JCheckBox)e.getSource()).isSelected(); tableView.setColumnSelectionAllowed(flag); ; tableView.repaint(); } }); isRowSelectionAllowedCheckBox = new JCheckBox(getString("TableDemo.row_selection"), true); column2.add(isRowSelectionAllowedCheckBox); isRowSelectionAllowedCheckBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { boolean flag = ((JCheckBox)e.getSource()).isSelected(); tableView.setRowSelectionAllowed(flag); ; tableView.repaint(); } }); // Show that row/column selections are related relatedComponents.removeAllElements(); relatedComponents.add(isColumnSelectionAllowedCheckBox); relatedComponents.add(isRowSelectionAllowedCheckBox); buildAccessibleGroup(relatedComponents); /* isRowAndColumnSelectionAllowedCheckBox = new JCheckBox(getString("TableDemo.cell_selection"), false); column2.add(isRowAndColumnSelectionAllowedCheckBox); isRowAndColumnSelectionAllowedCheckBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { boolean flag = ((JCheckBox)e.getSource()).isSelected(); tableView.setCellSelectionEnabled(flag); ; tableView.repaint(); } }); */ rowHeightLabel = new JLabel(getString("TableDemo.row_height_colon")); column2.add(rowHeightLabel); rowHeightSlider = new JSlider(JSlider.HORIZONTAL, 5, 100, INITIAL_ROWHEIGHT); rowHeightSlider.getAccessibleContext().setAccessibleName(getString("TableDemo.row_height")); rowHeightLabel.setLabelFor(rowHeightSlider); column2.add(rowHeightSlider); rowHeightSlider.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent e) { int height = ((JSlider)e.getSource()).getValue(); tableView.setRowHeight(height); tableView.repaint(); } }); controlPanel.add(column2); // Show that spacing controls are related relatedComponents.removeAllElements(); relatedComponents.add(interCellSpacingSlider); relatedComponents.add(rowHeightSlider); buildAccessibleGroup(relatedComponents); // Create the table. tableAggregate = createTable(); getDemoPanel().add(tableAggregate, BorderLayout.CENTER); // ComboBox for selection modes. JPanel selectMode = new JPanel(); column3.setLayout(new ColumnLayout()); selectMode.setBorder(new TitledBorder(getString("TableDemo.selection_mode"))); selectionModeComboBox = new JComboBox(); selectionModeComboBox.addItem(getString("TableDemo.single")); selectionModeComboBox.addItem(getString("TableDemo.one_range")); selectionModeComboBox.addItem(getString("TableDemo.multiple_ranges")); selectionModeComboBox.setSelectedIndex(tableView.getSelectionModel().getSelectionMode()); selectionModeComboBox.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { JComboBox source = (JComboBox)e.getSource(); tableView.setSelectionMode(source.getSelectedIndex()); } }); selectMode.add(selectionModeComboBox); column3.add(selectMode); // Combo box for table resize mode. JPanel resizeMode = new JPanel(); resizeMode.setBorder(new TitledBorder(getString("TableDemo.autoresize_mode"))); resizeModeComboBox = new JComboBox(); resizeModeComboBox.addItem(getString("TableDemo.off")); resizeModeComboBox.addItem(getString("TableDemo.column_boundries")); resizeModeComboBox.addItem(getString("TableDemo.subsequent_columns")); resizeModeComboBox.addItem(getString("TableDemo.last_column")); resizeModeComboBox.addItem(getString("TableDemo.all_columns")); resizeModeComboBox.setSelectedIndex(tableView.getAutoResizeMode()); resizeModeComboBox.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { JComboBox source = (JComboBox)e.getSource(); tableView.setAutoResizeMode(source.getSelectedIndex()); } }); resizeMode.add(resizeModeComboBox); column3.add(resizeMode); controlPanel.add(column3); setTableControllers(); // Set accessibility information } // TableDemo() /** * Sets the Accessibility MEMBER_OF property to denote that * these components work together as a group. Each object * is set to be a MEMBER_OF an array that contains all of * the objects in the group, including itself. * * @param components The list of objects that are related */ void buildAccessibleGroup(Vector components) { AccessibleContext context = null; int numComponents = components.size(); Object[] group = components.toArray(); Object object = null; for (int i = 0; i < numComponents; ++i) { object = components.elementAt(i); if (object instanceof Accessible) { context = ((Accessible)components.elementAt(i)). getAccessibleContext(); context.getAccessibleRelationSet().add( new AccessibleRelation( AccessibleRelation.MEMBER_OF, group)); } } } // buildAccessibleGroup() /** * This sets CONTROLLER_FOR on the controls that manipulate the * table and CONTROLLED_BY relationships on the table to point * back to the controllers. */ private void setTableControllers() { // Set up the relationships to show what controls the table setAccessibleController(isColumnReorderingAllowedCheckBox, tableAggregate); setAccessibleController(showHorizontalLinesCheckBox, tableAggregate); setAccessibleController(showVerticalLinesCheckBox, tableAggregate); setAccessibleController(isColumnSelectionAllowedCheckBox, tableAggregate); setAccessibleController(isRowSelectionAllowedCheckBox, tableAggregate); setAccessibleController(interCellSpacingSlider, tableAggregate); setAccessibleController(rowHeightSlider, tableAggregate); setAccessibleController(selectionModeComboBox, tableAggregate); setAccessibleController(resizeModeComboBox, tableAggregate); } // setTableControllers() /** * Sets up accessibility relationships to denote that one * object controls another. The CONTROLLER_FOR property is * set on the controller object, and the CONTROLLED_BY * property is set on the target object. */ private void setAccessibleController(JComponent controller, JComponent target) { AccessibleRelationSet controllerRelations = controller.getAccessibleContext().getAccessibleRelationSet(); AccessibleRelationSet targetRelations = target.getAccessibleContext().getAccessibleRelationSet(); controllerRelations.add( new AccessibleRelation( AccessibleRelation.CONTROLLER_FOR, target)); targetRelations.add( new AccessibleRelation( AccessibleRelation.CONTROLLED_BY, controller)); } // setAccessibleController() public JScrollPane createTable() { // final final String[] names = { getString("TableDemo.first_name"), getString("TableDemo.last_name"), getString("TableDemo.favorite_color"), getString("TableDemo.favorite_movie"), getString("TableDemo.favorite_number"), getString("TableDemo.favorite_food") }; ImageIcon apple = createImageIcon("ImageClub/food/apple.jpg", getString("TableDemo.apple")); ImageIcon asparagus = createImageIcon("ImageClub/food/asparagus.jpg", getString("TableDemo.asparagus")); ImageIcon banana = createImageIcon("ImageClub/food/banana.jpg", getString("TableDemo.banana")); ImageIcon broccoli = createImageIcon("ImageClub/food/broccoli.jpg", getString("TableDemo.broccoli")); ImageIcon cantaloupe = createImageIcon("ImageClub/food/cantaloupe.jpg", getString("TableDemo.cantaloupe")); ImageIcon carrot = createImageIcon("ImageClub/food/carrot.jpg", getString("TableDemo.carrot")); ImageIcon corn = createImageIcon("ImageClub/food/corn.jpg", getString("TableDemo.corn")); ImageIcon grapes = createImageIcon("ImageClub/food/grapes.jpg", getString("TableDemo.grapes")); ImageIcon grapefruit = createImageIcon("ImageClub/food/grapefruit.jpg", getString("TableDemo.grapefruit")); ImageIcon kiwi = createImageIcon("ImageClub/food/kiwi.jpg", getString("TableDemo.kiwi")); ImageIcon onion = createImageIcon("ImageClub/food/onion.jpg", getString("TableDemo.onion")); ImageIcon pear = createImageIcon("ImageClub/food/pear.jpg", getString("TableDemo.pear")); ImageIcon peach = createImageIcon("ImageClub/food/peach.jpg", getString("TableDemo.peach")); ImageIcon pepper = createImageIcon("ImageClub/food/pepper.jpg", getString("TableDemo.pepper")); ImageIcon pickle = createImageIcon("ImageClub/food/pickle.jpg", getString("TableDemo.pickle")); ImageIcon pineapple = createImageIcon("ImageClub/food/pineapple.jpg", getString("TableDemo.pineapple")); ImageIcon raspberry = createImageIcon("ImageClub/food/raspberry.jpg", getString("TableDemo.raspberry")); ImageIcon sparegrass = createImageIcon("ImageClub/food/asparagus.jpg", getString("TableDemo.sparegrass")); ImageIcon strawberry = createImageIcon("ImageClub/food/strawberry.jpg", getString("TableDemo.strawberry")); ImageIcon tomato = createImageIcon("ImageClub/food/tomato.jpg", getString("TableDemo.tomato")); ImageIcon watermelon = createImageIcon("ImageClub/food/watermelon.jpg", getString("TableDemo.watermelon")); NamedColor aqua = new NamedColor(new Color(127, 255, 212), getString("TableDemo.aqua")); NamedColor beige = new NamedColor(new Color(245, 245, 220), getString("TableDemo.beige")); NamedColor black = new NamedColor(Color.black, getString("TableDemo.black")); NamedColor blue = new NamedColor(new Color(0, 0, 222), getString("TableDemo.blue")); NamedColor eblue = new NamedColor(Color.blue, getString("TableDemo.eblue")); NamedColor jfcblue = new NamedColor(new Color(204, 204, 255), getString("TableDemo.jfcblue")); NamedColor jfcblue2 = new NamedColor(new Color(153, 153, 204), getString("TableDemo.jfcblue2")); NamedColor cybergreen = new NamedColor(Color.green.darker().brighter(), getString("TableDemo.cybergreen")); NamedColor darkgreen = new NamedColor(new Color(0, 100, 75), getString("TableDemo.darkgreen")); NamedColor forestgreen = new NamedColor(Color.green.darker(), getString("TableDemo.forestgreen")); NamedColor gray = new NamedColor(Color.gray, getString("TableDemo.gray")); NamedColor green = new NamedColor(Color.green, getString("TableDemo.green")); NamedColor orange = new NamedColor(new Color(255, 165, 0), getString("TableDemo.orange")); NamedColor purple = new NamedColor(new Color(160, 32, 240), getString("TableDemo.purple")); NamedColor red = new NamedColor(Color.red, getString("TableDemo.red")); NamedColor rustred = new NamedColor(Color.red.darker(), getString("TableDemo.rustred")); NamedColor sunpurple = new NamedColor(new Color(100, 100, 255), getString("TableDemo.sunpurple")); NamedColor suspectpink = new NamedColor(new Color(255, 105, 180), getString("TableDemo.suspectpink")); NamedColor turquoise = new NamedColor(new Color(0, 255, 255), getString("TableDemo.turquoise")); NamedColor violet = new NamedColor(new Color(238, 130, 238), getString("TableDemo.violet")); NamedColor yellow = new NamedColor(Color.yellow, getString("TableDemo.yellow")); // Create the dummy data (a few rows of names) final Object[][] data = { {"Mike", "Albers", green, getString("TableDemo.brazil"), new Double(44.0), strawberry}, {"Mark", "Andrews", blue, getString("TableDemo.curse"), new Double(3), grapes}, {"Brian", "Beck", black, getString("TableDemo.bluesbros"), new Double(2.7182818285), raspberry}, {"Lara", "Bunni", red, getString("TableDemo.airplane"), new Double(15), strawberry}, {"Roger", "Brinkley", blue, getString("TableDemo.man"), new Double(13), peach}, {"Brent", "Christian", black, getString("TableDemo.bladerunner"), new Double(23), broccoli}, {"Mark", "Davidson", darkgreen, getString("TableDemo.brazil"), new Double(27), asparagus}, {"Jeff", "Dinkins", blue, getString("TableDemo.ladyvanishes"), new Double(8), kiwi}, {"Ewan", "Dinkins", yellow, getString("TableDemo.bugs"), new Double(2), strawberry}, {"Amy", "Fowler", violet, getString("TableDemo.reservoir"), new Double(3), raspberry}, {"Hania", "Gajewska", purple, getString("TableDemo.jules"), new Double(5), raspberry}, {"David", "Geary", blue, getString("TableDemo.pulpfiction"), new Double(3), watermelon}, // {"James", "Gosling", pink, getString("TableDemo.tennis"), new Double(21), donut}, {"Eric", "Hawkes", blue, getString("TableDemo.bladerunner"), new Double(.693), pickle}, {"Shannon", "Hickey", green, getString("TableDemo.shawshank"), new Integer(2), grapes}, {"Earl", "Johnson", green, getString("TableDemo.pulpfiction"), new Double(8), carrot}, {"Robi", "Kahn", green, getString("TableDemo.goodfellas"), new Double(89), apple}, {"Robert", "Kim", blue, getString("TableDemo.mohicans"), new Double(655321), strawberry}, {"Janet", "Koenig", turquoise, getString("TableDemo.lonestar"), new Double(7), peach}, {"Jeff", "Kesselman", blue, getString("TableDemo.stuntman"), new Double(17), pineapple}, {"Onno", "Kluyt", orange, getString("TableDemo.oncewest"), new Double(8), broccoli}, {"Peter", "Korn", sunpurple, getString("TableDemo.musicman"), new Double(12), sparegrass}, {"Rick", "Levenson", black, getString("TableDemo.harold"), new Double(1327), raspberry}, {"Brian", "Lichtenwalter", jfcblue, getString("TableDemo.fifthelement"), new Double(22), pear}, {"Malini", "Minasandram", beige, getString("TableDemo.joyluck"), new Double(9), corn}, {"Michael", "Martak", green, getString("TableDemo.city"), new Double(3), strawberry}, {"David", "Mendenhall", forestgreen, getString("TableDemo.schindlerslist"), new Double(7), peach}, {"Phil", "Milne", suspectpink, getString("TableDemo.withnail"), new Double(3), banana}, {"Lynn", "Monsanto", cybergreen, getString("TableDemo.dasboot"), new Double(52), peach}, {"Hans", "Muller", rustred, getString("TableDemo.eraserhead"), new Double(0), pineapple}, {"Joshua", "Outwater", blue, getString("TableDemo.labyrinth"), new Integer(3), pineapple}, {"Tim", "Prinzing", blue, getString("TableDemo.firstsight"), new Double(69), pepper}, {"Raj", "Premkumar", jfcblue2, getString("TableDemo.none"), new Double(7), broccoli}, {"Howard", "Rosen", green, getString("TableDemo.defending"), new Double(7), strawberry}, {"Ray", "Ryan", black, getString("TableDemo.buckaroo"), new Double(3.141592653589793238462643383279502884197169399375105820974944), banana}, {"Georges", "Saab", aqua, getString("TableDemo.bicycle"), new Double(290), cantaloupe}, {"Tom", "Santos", blue, getString("TableDemo.spinaltap"), new Double(241), pepper}, {"Rich", "Schiavi", blue, getString("TableDemo.repoman"), new Double(0xFF), pepper}, {"Nancy", "Schorr", green, getString("TableDemo.fifthelement"), new Double(47), watermelon}, {"Keith", "Sprochi", darkgreen, getString("TableDemo.2001"), new Integer(13), watermelon}, {"Matt", "Tucker", eblue, getString("TableDemo.starwars"), new Integer(2), broccoli}, {"Dimitri", "Trembovetsky", red, getString("TableDemo.aliens"), new Integer(222), tomato}, {"Scott", "Violet", violet, getString("TableDemo.raiders"), new Integer(-97), banana}, {"Kathy", "Walrath", blue, getString("TableDemo.thinman"), new Integer(8), pear}, {"Nathan", "Walrath", black, getString("TableDemo.chusingura"), new Integer(3), grapefruit}, {"Steve", "Wilson", green, getString("TableDemo.raiders"), new Integer(7), onion}, {"Kathleen", "Zelony", gray, getString("TableDemo.dog"), new Integer(13), grapes} }; // Create a model of the data. TableModel dataModel = new AbstractTableModel() { public int getColumnCount() { return names.length; } public int getRowCount() { return data.length;} public Object getValueAt(int row, int col) {return data[row][col];} public String getColumnName(int column) {return names[column];} public Class getColumnClass(int c) {return getValueAt(0, c).getClass();} public boolean isCellEditable(int row, int col) {return col != 5;} public void setValueAt(Object aValue, int row, int column) { data[row][column] = aValue; } }; // Create the table tableView = new JTable(dataModel); // Show colors by rendering them in their own color. DefaultTableCellRenderer colorRenderer = new DefaultTableCellRenderer() { public void setValue(Object value) { if (value instanceof NamedColor) { NamedColor c = (NamedColor) value; setBackground(c); setForeground(c.getTextColor()); setText(c.toString()); } else { super.setValue(value); } } }; // Create a combo box to show that you can use one in a table. JComboBox comboBox = new JComboBox(); comboBox.addItem(aqua); comboBox.addItem(beige); comboBox.addItem(black); comboBox.addItem(blue); comboBox.addItem(eblue); comboBox.addItem(jfcblue); comboBox.addItem(jfcblue2); comboBox.addItem(cybergreen); comboBox.addItem(darkgreen); comboBox.addItem(forestgreen); comboBox.addItem(gray); comboBox.addItem(green); comboBox.addItem(orange); comboBox.addItem(purple); comboBox.addItem(red); comboBox.addItem(rustred); comboBox.addItem(sunpurple); comboBox.addItem(suspectpink); comboBox.addItem(turquoise); comboBox.addItem(violet); comboBox.addItem(yellow); TableColumn colorColumn = tableView.getColumn(getString("TableDemo.favorite_color")); // Use the combo box as the editor in the "Favorite Color" column. colorColumn.setCellEditor(new DefaultCellEditor(comboBox)); colorRenderer.setHorizontalAlignment(JLabel.CENTER); colorColumn.setCellRenderer(colorRenderer); tableView.setRowHeight(INITIAL_ROWHEIGHT); scrollpane = new JScrollPane(tableView); return scrollpane; } class NamedColor extends Color { String name; public NamedColor(Color color, String name) { super(color.getRGB()); this.name = name; } public Color getTextColor() { int r = getRed(); int g = getGreen(); int b = getBlue(); if(r > 240 || g > 240) { return Color.black; } else { return Color.white; } } public String toString() { return name; } } class ColumnLayout implements LayoutManager { int xInset = 5; int yInset = 5; int yGap = 2; public void addLayoutComponent(String s, Component c) {} public void layoutContainer(Container c) { Insets insets = c.getInsets(); int height = yInset + insets.top; Component[] children = c.getComponents(); Dimension compSize = null; for (int i = 0; i < children.length; i++) { compSize = children[i].getPreferredSize(); children[i].setSize(compSize.width, compSize.height); children[i].setLocation( xInset + insets.left, height); height += compSize.height + yGap; } } public Dimension minimumLayoutSize(Container c) { Insets insets = c.getInsets(); int height = yInset + insets.top; int width = 0 + insets.left + insets.right; Component[] children = c.getComponents(); Dimension compSize = null; for (int i = 0; i < children.length; i++) { compSize = children[i].getPreferredSize(); height += compSize.height + yGap; width = Math.max(width, compSize.width + insets.left + insets.right + xInset*2); } height += insets.bottom; return new Dimension( width, height); } public Dimension preferredLayoutSize(Container c) { return minimumLayoutSize(c); } public void removeLayoutComponent(Component c) {} } }