Java Tutorial/Swing/JTabbedPane
Содержание
- 1 Add a tab with a label and icon at the end of all tabs
- 2 Add a tab with a label at the end of all tabs
- 3 Add a tab with a label, icon, and tool tip at the end of all tabs
- 4 Add a tab with a label taken from the name of the component
- 5 Add Button to tab bar
- 6 Add Components to JTabbedPane
- 7 Adding and Removing Tabs
- 8 Adds tool tips to a table using a renderer
- 9 Add user icon to tab panel
- 10 Changing background, foreground and icon
- 11 Changing tab"s title, icon, mnemonic, tooltip, or component on a particular tab with one of the setXXXAt() methods
- 12 Customizing a JTabbedPane Look and Feel
- 13 Determining When the Selected Tab Changes in a JTabbedPane Container
- 14 Enable Scrolling Tabs in a JTabbedPane Container
- 15 Enabling and Disabling a Tab in a JTabbedPane Container
- 16 Enabling the Selection of a Tab in a JTabbedPane Container Using a Keystroke
- 17 First usage of JTabbedPane
- 18 Get the index of the first tab that matches an icon
- 19 Get the index of the tab by matching the child component
- 20 Getting and Setting the Selected Tab in a JTabbedPane Container
- 21 Getting the Tabs in a JTabbedPane Container
- 22 Insert a tab after the first tab
- 23 JTabPane with TextField in the tab
- 24 Listening for Selected Tab Changes
- 25 Moving a Tab in a JTabbedPane Container
- 26 New Methods in the JTabPane Component (Add component to JTabPane)
- 27 Setting the Color of a Tab in a JTabbedPane Container
- 28 Setting the Location of the Tabs in a JTabbedPane Container
- 29 Setting the Size of the Divider in a JSplitPane Container
- 30 Setting the Tool Tip for a Tab in a JTabbedPane Container
- 31 Specifying a tab"s location: TOP, BOTTOM, LEFT, or RIGHT
- 32 TabLayout Policy: SCROLL_TAB_LAYOUT or WRAP_TAP_LAYOUT
- 33 To remove a tab, you can remove a specific tab with removeTabAt(int index), remove(int index), or remove(Component component)
Add a tab with a label and icon at the end of all tabs
<source lang="java">
import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); JButton component = new JButton("button"); Icon icon = new ImageIcon("icon.gif"); pane.addTab("label", icon, component); }
}</source>
Add a tab with a label at the end of all tabs
<source lang="java">
import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); JButton component = new JButton("button"); String label = "Tab Label"; pane.addTab(label, component); }
}</source>
Add a tab with a label, icon, and tool tip at the end of all tabs
<source lang="java">
import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); JButton component = new JButton("button"); String tooltip = "Tool Tip Text"; pane.addTab("label", new ImageIcon("icon.png"), component, tooltip); }
}</source>
Add a tab with a label taken from the name of the component
<source lang="java">
import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); JButton component = new JButton("button"); component.setName("Tab Label"); pane.add(component); }
}</source>
Add Button to tab bar
<source lang="java">
import java.awt.BorderLayout; import java.awt.ruponent; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JEditorPane; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTabbedPane; import javax.swing.JTextField; public class AddButtonToTabBar extends JFrame {
private JTabbedPane tp; private JLabel lblStatus; private int tabCounter = 0; public AddButtonToTabBar() { super("Browser"); setDefaultCloseOperation(EXIT_ON_CLOSE); JMenuBar mb = new JMenuBar(); JMenu mFile = new JMenu("File"); JMenuItem mi = new JMenuItem("Add Tab"); ActionListener addTabl = new ActionListener() { public void actionPerformed(ActionEvent e) { addTab(); } }; mi.addActionListener(addTabl); mFile.add(mi); mb.add(mFile); setJMenuBar(mb); JPanel pnlURL = new JPanel(); tp = new JTabbedPane(); addTab(); getContentPane().add(tp, BorderLayout.CENTER); lblStatus = new JLabel(" "); getContentPane().add(lblStatus, BorderLayout.SOUTH); setSize(300, 300); setVisible(true); } void addTab() { JEditorPane ep = new JEditorPane(); ep.setEditable(false); tp.addTab(null, new JScrollPane(ep)); JButton tabCloseButton = new JButton("Close"); tabCloseButton.setActionCommand("" + tabCounter); ActionListener al; al = new ActionListener() { public void actionPerformed(ActionEvent ae) { JButton btn = (JButton) ae.getSource(); String s1 = btn.getActionCommand(); for (int i = 1; i < tp.getTabCount(); i++) { JPanel pnl = (JPanel) tp.getTabComponentAt(i); btn = (JButton) pnl.getComponent(0); String s2 = btn.getActionCommand(); if (s1.equals(s2)) { tp.removeTabAt(i); break; } } } }; tabCloseButton.addActionListener(al); if (tabCounter != 0) { JPanel pnl = new JPanel(); pnl.setOpaque(false); pnl.add(tabCloseButton); tp.setTabComponentAt(tp.getTabCount() - 1, pnl); tp.setSelectedIndex(tp.getTabCount() - 1); } tabCounter++; } public static void main(String[] args) { new AddButtonToTabBar(); }
}</source>
Add Components to JTabbedPane
<source lang="java">
import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTabbedPane; public class JDK6TabbedPaneExample {
private JFrame frame = new JFrame(); private JTabbedPane tabbedPane = new JTabbedPane(); private JButton addTabButton = new JButton("Add Tab"); private ImageIcon closeXIcon = new ImageIcon("C:/CloseX.gif"); private Dimension closeButtonSize; private int tabCounter = 0; public JDK6TabbedPaneExample() { addTabButton.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ add(); } }); closeButtonSize = new Dimension(closeXIcon.getIconWidth() + 2, closeXIcon.getIconHeight() + 2); frame.add(tabbedPane, BorderLayout.CENTER); frame.add(addTabButton, BorderLayout.SOUTH); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setMinimumSize(new Dimension(300, 300)); frame.setVisible(true); } public void add() { final JPanel content = new JPanel(); JPanel tab = new JPanel(); tab.setOpaque(false); JLabel tabLabel = new JLabel("Tab " + (++tabCounter)); JButton tabCloseButton = new JButton(closeXIcon); tabCloseButton.setPreferredSize(closeButtonSize); tabCloseButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int closeTabNumber = tabbedPane.indexOfComponent(content); tabbedPane.removeTabAt(closeTabNumber); } }); tab.add(tabLabel, BorderLayout.WEST); tab.add(tabCloseButton, BorderLayout.EAST); tabbedPane.addTab(null, content); tabbedPane.setTabComponentAt(tabbedPane.getTabCount() - 1, tab); } public static void main(String[] args) { JDK6TabbedPaneExample main = new JDK6TabbedPaneExample(); }
}</source>
Adding and Removing Tabs
- public void addTab(String title, Component component)
- public void addTab(String title, Icon icon, Component component)
- public void addTab(String title, Icon icon, Component component, String tip)
- public void insertTab(String title, Icon icon, Component component, String tip, int index)
<source lang="java">
import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class TabSample {
static Color colors[] = { Color.RED, Color.ORANGE, Color.YELLOW, Color.GREEN, Color.BLUE, Color.MAGENTA }; static void add(JTabbedPane tabbedPane, String label) { int count = tabbedPane.getTabCount(); JButton button = new JButton(label); button.setBackground(colors[count]); tabbedPane.addTab(label, new ImageIcon("yourFile.gif"), button, label); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); String titles[] = { "A", "B", "C", "D", "E", "F" }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i]); } frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>
Adds tool tips to a table using a renderer
<source lang="java">
/*
* * Copyright (c) 1998 Sun Microsystems, Inc. All Rights Reserved. * * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use, * modify and redistribute this software in source and binary code form, * provided that i) this copyright notice and license appear on all copies of * the software; and ii) Licensee does not utilize the software in a manner * which is disparaging to Sun. * * 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 SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING * OR DISTRIBUTING 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. * * This software is not designed or intended for use in on-line control of * aircraft, air traffic, aircraft navigation or aircraft communications; or in * the design, construction, operation or maintenance of any nuclear * facility. Licensee represents and warrants that it will not use or * redistribute the Software for such purposes. */
import java.awt.ruponent; import java.awt.Dimension; import java.awt.GridLayout; import javax.swing.DefaultCellEditor; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.AbstractTableModel; import javax.swing.table.DefaultTableCellRenderer; import javax.swing.table.TableCellRenderer; import javax.swing.table.TableColumn; public class TableRenderDemo extends JPanel {
private boolean DEBUG = false; public TableRenderDemo() { super(new GridLayout(1, 0)); JTable table = new JTable(new MyTableModel()); table.setPreferredScrollableViewportSize(new Dimension(500, 70)); // Create the scroll pane and add the table to it. JScrollPane scrollPane = new JScrollPane(table); // Set up column sizes. initColumnSizes(table); // Fiddle with the Sport column"s cell editors/renderers. setUpSportColumn(table, table.getColumnModel().getColumn(2)); // Add the scroll pane to this panel. add(scrollPane); } /* * This method picks good column sizes. If all column heads are wider than the * column"s cells" contents, then you can just use column.sizeWidthToFit(). */ private void initColumnSizes(JTable table) { MyTableModel model = (MyTableModel) table.getModel(); TableColumn column = null; Component comp = null; int headerWidth = 0; int cellWidth = 0; Object[] longValues = model.longValues; TableCellRenderer headerRenderer = table.getTableHeader().getDefaultRenderer(); for (int i = 0; i < 5; i++) { column = table.getColumnModel().getColumn(i); comp = headerRenderer.getTableCellRendererComponent(null, column.getHeaderValue(), false, false, 0, 0); headerWidth = comp.getPreferredSize().width; comp = table.getDefaultRenderer(model.getColumnClass(i)).getTableCellRendererComponent(table, longValues[i], false, false, 0, i); cellWidth = comp.getPreferredSize().width; if (DEBUG) { System.out.println("Initializing width of column " + i + ". " + "headerWidth = " + headerWidth + "; cellWidth = " + cellWidth); } // XXX: Before Swing 1.1 Beta 2, use setMinWidth instead. column.setPreferredWidth(Math.max(headerWidth, cellWidth)); } } public void setUpSportColumn(JTable table, TableColumn sportColumn) { // Set up the editor for the sport cells. JComboBox comboBox = new JComboBox(); comboBox.addItem("Snowboarding"); comboBox.addItem("Rowing"); comboBox.addItem("Knitting"); comboBox.addItem("Speed reading"); comboBox.addItem("Pool"); comboBox.addItem("None of the above"); sportColumn.setCellEditor(new DefaultCellEditor(comboBox)); // Set up tool tips for the sport cells. DefaultTableCellRenderer renderer = new DefaultTableCellRenderer(); renderer.setToolTipText("Click for combo box"); sportColumn.setCellRenderer(renderer); } class MyTableModel extends AbstractTableModel { private String[] columnNames = { "First Name", "Last Name", "Sport", "# of Years", "Vegetarian" }; private Object[][] data = { { "Mary", "Campione", "Snowboarding", new Integer(5), new Boolean(false) }, { "Alison", "Huml", "Rowing", new Integer(3), new Boolean(true) }, { "Kathy", "Walrath", "Knitting", new Integer(2), new Boolean(false) }, { "Sharon", "Zakhour", "Speed reading", new Integer(20), new Boolean(true) }, { "Philip", "Milne", "Pool", new Integer(10), new Boolean(false) } }; public final Object[] longValues = { "Sharon", "Campione", "None of the above", new Integer(20), Boolean.TRUE }; public int getColumnCount() { return columnNames.length; } public int getRowCount() { return data.length; } public String getColumnName(int col) { return columnNames[col]; } public Object getValueAt(int row, int col) { return data[row][col]; } /* * JTable uses this method to determine the default renderer/ editor for * each cell. If we didn"t implement this method, then the last column would * contain text ("true"/"false"), rather than a check box. */ public Class getColumnClass(int c) { return getValueAt(0, c).getClass(); } /* * Don"t need to implement this method unless your table"s editable. */ public boolean isCellEditable(int row, int col) { // Note that the data/cell address is constant, // no matter where the cell appears onscreen. if (col < 2) { return false; } else { return true; } } /* * Don"t need to implement this method unless your table"s data can change. */ public void setValueAt(Object value, int row, int col) { if (DEBUG) { System.out.println("Setting value at " + row + "," + col + " to " + value + " (an instance of " + value.getClass() + ")"); } data[row][col] = value; fireTableCellUpdated(row, col); if (DEBUG) { System.out.println("New value of data:"); printDebugData(); } } private void printDebugData() { int numRows = getRowCount(); int numCols = getColumnCount(); for (int i = 0; i < numRows; i++) { System.out.print(" row " + i + ":"); for (int j = 0; j < numCols; j++) { System.out.print(" " + data[i][j]); } System.out.println(); } } } public static void main(String[] args) { JFrame frame = new JFrame("TableRenderDemo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // Create and set up the content pane. TableRenderDemo newContentPane = new TableRenderDemo(); newContentPane.setOpaque(true); // content panes must be opaque frame.setContentPane(newContentPane); // Display the window. frame.pack(); frame.setVisible(true); }
}</source>
Add user icon to tab panel
<source lang="java">
import java.awt.BorderLayout; import java.awt.Color; import java.awt.ruponent; import java.awt.Graphics; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.Icon; import javax.swing.JButton; import javax.swing.JCheckBoxMenuItem; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JTabbedPane; import javax.swing.JTextField; public class TabPanelwithImageIconCustom extends JFrame {
private JTextField textfield = new JTextField(); public static void main(String[] args) { TabPanelwithImageIconCustom that = new TabPanelwithImageIconCustom(); that.setVisible(true); } public TabPanelwithImageIconCustom() { setSize(450, 350); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); getContentPane().add(textfield, BorderLayout.SOUTH); JMenuBar mbar = new JMenuBar(); JMenu menu = new JMenu("File"); menu.add(new JCheckBoxMenuItem("Check Me")); menu.addSeparator(); JMenuItem item = new JMenuItem("Exit"); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); menu.add(item); mbar.add(menu); setJMenuBar(mbar); JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.addTab("Button", new TabIcon(), new JButton(""), "Click here for Button demo"); }
} class TabIcon implements Icon {
public int getIconWidth() { return 16; } public int getIconHeight() { return 16; } public void paintIcon(Component c, Graphics g, int x, int y) { g.setColor(Color.black); g.fillRect(x + 4, y + 4, getIconWidth() - 8, getIconHeight() - 8); g.setColor(Color.cyan); g.fillRect(x + 6, y + 6, getIconWidth() - 12, getIconHeight() - 12); }
}</source>
Changing background, foreground and icon
- public void setBackgroundAt(int index, Color background)
- public void setForegroundAt(int index, Color foreground)
- public void setEnabledAt(int index, boolean enabled)
- public void setDisabledIconAt(int index, Icon disabledIcon)
<source lang="java">
import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; public class TabSample {
static Color colors[] = { Color.RED, Color.ORANGE, Color.YELLOW, Color.GREEN, Color.BLUE, Color.MAGENTA }; static void add(JTabbedPane tabbedPane, String label, int mnemonic) { int count = tabbedPane.getTabCount(); JButton button = new JButton(label); tabbedPane.addTab(label, new ImageIcon("yourFile.gif"), button, label); tabbedPane.setMnemonicAt(count, mnemonic); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); String titles[] = { "General", "Security", "Content", "Connection", "Programs", "Advanced" }; int mnemonic[] = { KeyEvent.VK_G, KeyEvent.VK_S, KeyEvent.VK_C, KeyEvent.VK_O, KeyEvent.VK_P, KeyEvent.VK_A }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i], mnemonic[i]); tabbedPane.setBackgroundAt(i,colors[i]); } frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>
Changing tab"s title, icon, mnemonic, tooltip, or component on a particular tab with one of the setXXXAt() methods
The displayed mnemonic index refers to which time a particular character in the title should be highlighted. In addition, you can change the background or foreground of a specific tab, enable or disable a specific tab, or have a different disabled icon with additional setXXXAt() methods:
- public void setTitleAt(int index, String title)
- public void setIconAt(int index, Icon icon)
- public void setMnemonicAt(int index, int mnemonic)
- public void setDisplayedMnemonicIndexAt(int index, int mnemonicIndex)
- public void setToolTipTextAt(int index, String text)
- public void setComponentAt(int index, Component component)
<source lang="java">
import java.awt.BorderLayout; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; public class TabSample {
static void add(JTabbedPane tabbedPane, String label, int mnemonic) { int count = tabbedPane.getTabCount(); JButton button = new JButton(label); tabbedPane.addTab(label, new ImageIcon("yourFile.gif"), button, label); tabbedPane.setMnemonicAt(count, mnemonic); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); String titles[] = { "General", "Security", "Content", "Connection", "Programs", "Advanced" }; int mnemonic[] = { KeyEvent.VK_G, KeyEvent.VK_S, KeyEvent.VK_C, KeyEvent.VK_O, KeyEvent.VK_P, KeyEvent.VK_A }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i], mnemonic[i]); } frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>
Customizing a JTabbedPane Look and Feel
Property StringObject TypeTabbedPane.actionMapActionMapTabbedPane.ancestorInputMapInputMapTabbedPane.backgroundColorTabbedPane.borderHightlightColorColorTabbedPane.contentAreaColorColorTabbedPane.contentBorderInsetsInsetsTabbedPane.contentOpaqueBooleanTabbedPane.darkShadowColorTabbedPane.focusColorTabbedPane.focusInputMapInputMapTabbedPane.fontFontTabbedPane.foregroundColorTabbedPane.highlightColorTabbedPane.lightColorTabbedPane.opaqueBooleanTabbedPane.selectedColorTabbedPane.selectedForegroundColorTabbedPane.selectedTabPadInsetsInsetsTabbedPane.selectHighlightColorTabbedPane.selectionFollowsFocusBooleanTabbedPane.shadowColorTabbedPane.tabAreaBackgroundColorTabbedPane.tabAreaInsetsInsetsTabbedPane.tabInsetsInsetsTabbedPane.tabRunOverlayIntegerTabbedPane.tabsOpaqueBooleanTabbedPane.tabsOverlapBorderBooleanTabbedPane.textIconGapIntegerTabbedPane.unselectedBackgroundColorTabbedPane.unselectedTabBackgroundColorTabbedPane.unselectedTabForegroundColorTabbedPane.unselectedTabHighlightColorTabbedPane.unselectedTabShadowColorTabbedPaneUIString
Determining When the Selected Tab Changes in a JTabbedPane Container
<source lang="java">
import javax.swing.JTabbedPane; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); pane.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent evt) { JTabbedPane pane = (JTabbedPane) evt.getSource(); int sel = pane.getSelectedIndex(); System.out.println(sel); } }); }
}</source>
Enable Scrolling Tabs in a JTabbedPane Container
<source lang="java">
import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); int rows = pane.getTabRunCount(); int policy = pane.getTabLayoutPolicy(); // WRAP_TAB_LAYOUT pane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); }
}</source>
Enabling and Disabling a Tab in a JTabbedPane Container
<source lang="java">
import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); pane.addTab("Tab Label", new JButton("Button")); // Get index of the new tab int index = pane.getTabCount() - 1; // Determine whether the tab is enabled boolean enabled = pane.isEnabledAt(index); // Disable the tab pane.setEnabledAt(index, false); }
}</source>
Enabling the Selection of a Tab in a JTabbedPane Container Using a Keystroke
<source lang="java">
import java.awt.event.KeyEvent; import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); pane.addTab("Tab Label", new JButton("button")); int index = pane.getTabCount() - 1; int keycode = KeyEvent.VK_L; pane.setMnemonicAt(index, keycode); }
}</source>
First usage of JTabbedPane
<source lang="java">
import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTabbedPane; import javax.swing.SwingUtilities; public class MainClass {
public static void main(String[] a) { JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.add(new JTabbedPaneDemo()); f.setSize(500, 500); f.setVisible(true); }
} class JTabbedPaneDemo extends JPanel {
public void init() { try { SwingUtilities.invokeAndWait(new Runnable() { public void run() { makeGUI(); } }); } catch (Exception exc) { System.out.println("Can"t create because of " + exc); } } private void makeGUI() { JTabbedPane jtp = new JTabbedPane(); jtp.addTab("Cities", new CitiesPanel()); jtp.addTab("Colors", new ColorsPanel()); jtp.addTab("Flavors", new FlavorsPanel()); add(jtp); }
} class CitiesPanel extends JPanel {
public CitiesPanel() { JButton b1 = new JButton("New York"); add(b1); JButton b2 = new JButton("London"); add(b2); JButton b3 = new JButton("Hong Kong"); add(b3); JButton b4 = new JButton("Tokyo"); add(b4); }
} class ColorsPanel extends JPanel {
public ColorsPanel() { JCheckBox cb1 = new JCheckBox("Red"); add(cb1); JCheckBox cb2 = new JCheckBox("Green"); add(cb2); JCheckBox cb3 = new JCheckBox("Blue"); add(cb3); }
} class FlavorsPanel extends JPanel {
public FlavorsPanel() { JComboBox jcb = new JComboBox(); jcb.addItem("Vanilla"); jcb.addItem("Chocolate"); jcb.addItem("Strawberry"); add(jcb); }
}</source>
Get the index of the first tab that matches an icon
<source lang="java">
import javax.swing.ImageIcon; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); ImageIcon icon = null; int index = pane.indexOfTab(icon); }
}</source>
Get the index of the tab by matching the child component
<source lang="java">
import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); JButton component = new JButton("button"); int index = pane.indexOfComponent(component); if (index < 0) { // The tab could not be found } }
}</source>
Getting and Setting the Selected Tab in a JTabbedPane Container
<source lang="java">
import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); // Get the index of the currently selected tab int selIndex = pane.getSelectedIndex(); // Select the last tab selIndex = pane.getTabCount() - 1; pane.setSelectedIndex(selIndex); }
}</source>
Getting the Tabs in a JTabbedPane Container
<source lang="java">
import java.awt.ruponent; import javax.swing.Icon; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); int count = pane.getTabCount(); for (int i = 0; i < count; i++) { String label = pane.getTitleAt(i); Icon icon = pane.getIconAt(i); String tooltip = pane.getToolTipTextAt(i); boolean enabled = pane.isEnabledAt(i); int keycode = pane.getMnemonicAt(i); Component comp = pane.getComponentAt(i); } }
}</source>
Insert a tab after the first tab
<source lang="java">
import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); JButton component = new JButton("button"); int index = 1; pane.insertTab("label", new ImageIcon("icon.png"), component, "tooltip", index); }
}</source>
JTabPane with TextField in the tab
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTabbedPane; import javax.swing.JTextField; public class TabSample {
static void addIt(JTabbedPane tabbedPane, String text) { JLabel label = new JLabel(text); JButton button = new JButton(text); JPanel panel = new JPanel(); panel.add(label); panel.add(button); tabbedPane.addTab(text, panel); tabbedPane.setTabComponentAt(tabbedPane.getTabCount() - 1, new JTextField(text)); } public static void main(String args[]) { JFrame f = new JFrame("Got JTabbedPane?"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); addIt(tabbedPane, "Tab One"); addIt(tabbedPane, "Tab Two"); addIt(tabbedPane, "Tab Three"); addIt(tabbedPane, "Tab Four"); addIt(tabbedPane, "Tab Five"); f.add(tabbedPane, BorderLayout.CENTER); f.setSize(300, 200); f.setVisible(true); }
}</source>
Listening for Selected Tab Changes
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class TabSample {
static void add(JTabbedPane tabbedPane, String label) { JButton button = new JButton(label); tabbedPane.addTab(label, button); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); String titles[] = { "General", "Security", "Content", "Connection", "Programs", "Advanced" }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i]); } ChangeListener changeListener = new ChangeListener() { public void stateChanged(ChangeEvent changeEvent) { JTabbedPane sourceTabbedPane = (JTabbedPane) changeEvent.getSource(); int index = sourceTabbedPane.getSelectedIndex(); System.out.println("Tab changed to: " + sourceTabbedPane.getTitleAt(index)); } }; tabbedPane.addChangeListener(changeListener); frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>
Moving a Tab in a JTabbedPane Container
<source lang="java">
import java.awt.Color; import java.awt.ruponent; import javax.swing.Icon; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); int src = pane.getTabCount() - 1; int dst = 0; Component comp = pane.getComponentAt(src); String label = pane.getTitleAt(src); Icon icon = pane.getIconAt(src); Icon iconDis = pane.getDisabledIconAt(src); String tooltip = pane.getToolTipTextAt(src); boolean enabled = pane.isEnabledAt(src); int keycode = pane.getMnemonicAt(src); int mnemonicLoc = pane.getDisplayedMnemonicIndexAt(src); Color fg = pane.getForegroundAt(src); Color bg = pane.getBackgroundAt(src); pane.remove(src); pane.insertTab(label, icon, comp, tooltip, dst); pane.setDisabledIconAt(dst, iconDis); pane.setEnabledAt(dst, enabled); pane.setMnemonicAt(dst, keycode); pane.setDisplayedMnemonicIndexAt(dst, mnemonicLoc); pane.setForegroundAt(dst, fg); pane.setBackgroundAt(dst, bg); }
}</source>
New Methods in the JTabPane Component (Add component to JTabPane)
<source lang="java">
import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTabbedPane; class TabComponent extends JPanel implements ActionListener {
private JTabbedPane pane; public TabComponent(String title, JTabbedPane pane) { this.pane = pane; setOpaque(false); JLabel label = new JLabel(title); add(label); JButton button = new JButton("Close"); button.setPreferredSize(new Dimension(50,10)); button.addActionListener(this); add(button); } public void actionPerformed(ActionEvent e) { int i = pane.indexOfTabComponent(this); if (i != -1) pane.remove(i); }
} public class TabComponentDemo {
public static void main(String[] args) { JTabbedPane pane = new JTabbedPane(); String title = "Tab"; pane.add(title, new JLabel(title)); pane.setTabComponentAt(0, new TabComponent(title, pane)); JFrame frame = new JFrame("Tab Component Demo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(pane); frame.setSize(500, 200); frame.setVisible(true); }
}</source>
Setting the Color of a Tab in a JTabbedPane Container
<source lang="java">
import java.awt.Color; import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); pane.setForeground(Color.YELLOW); pane.setBackground(Color.MAGENTA); String label = "Tab Label"; pane.addTab(label, new JButton("Button")); int index = pane.getTabCount() - 1; pane.setForegroundAt(index, Color.ORANGE); pane.setBackgroundAt(index, Color.GREEN); }
}</source>
Setting the Location of the Tabs in a JTabbedPane Container
<source lang="java">
import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); int loc = pane.getTabPlacement(); int location = JTabbedPane.LEFT; // or TOP, BOTTOM, RIGHT pane = new JTabbedPane(location); pane.setTabPlacement(JTabbedPane.BOTTOM); }
}</source>
Setting the Size of the Divider in a JSplitPane Container
<source lang="java">
import javax.swing.JButton; import javax.swing.JSplitPane; public class Main {
public static void main(String[] argv) throws Exception { JButton leftComponent = new JButton("left"); JButton rightComponent= new JButton("right"); JSplitPane pane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftComponent, rightComponent); int size = pane.getDividerSize(); size = 1; pane.setDividerSize(size); }
}</source>
Setting the Tool Tip for a Tab in a JTabbedPane Container
<source lang="java">
import javax.swing.JButton; import javax.swing.JTabbedPane; public class Main {
public static void main(String[] argv) throws Exception { JTabbedPane pane = new JTabbedPane(); String label = "Tab Label"; String tooltip = "Tool Tip Text"; pane.addTab(label, null, new JButton("Button"), tooltip); int index = pane.getTabCount() - 1; tooltip = pane.getToolTipTextAt(index); tooltip = "New Tool Tip Text"; pane.setToolTipTextAt(index, tooltip); }
}</source>
Specifying a tab"s location: TOP, BOTTOM, LEFT, or RIGHT
<source lang="java">
import java.awt.BorderLayout; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; public class TabLocation {
static void add(JTabbedPane tabbedPane, String label, int mnemonic) { int count = tabbedPane.getTabCount(); JButton button = new JButton(label); tabbedPane.addTab(label, new ImageIcon("yourFile.gif"), button, label); tabbedPane.setMnemonicAt(count, mnemonic); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); String titles[] = { "General", "Security", "Content", "Connection", "Programs", "Advanced" }; int mnemonic[] = { KeyEvent.VK_G, KeyEvent.VK_S, KeyEvent.VK_C, KeyEvent.VK_O, KeyEvent.VK_P, KeyEvent.VK_A }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i], mnemonic[i]); } tabbedPane.setTabPlacement(JTabbedPane.BOTTOM); frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>
TabLayout Policy: SCROLL_TAB_LAYOUT or WRAP_TAP_LAYOUT
<source lang="java">
import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; public class TabSampleTabLayoutPolicy {
static void add(JTabbedPane tabbedPane, String label) { JButton button = new JButton(label); tabbedPane.addTab(label, button); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); String titles[] = { "General", "Security", "Content", "Connection", "Programs", "Advanced" }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i]); } frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>
To remove a tab, you can remove a specific tab with removeTabAt(int index), remove(int index), or remove(Component component)
Removing all tabs with removeAll()
<source lang="java">
import java.awt.BorderLayout; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTabbedPane; public class TabSampleRemoveAll {
static void add(JTabbedPane tabbedPane, String label, int mnemonic) { int count = tabbedPane.getTabCount(); JButton button = new JButton(label); tabbedPane.addTab(label, new ImageIcon("yourFile.gif"), button, label); tabbedPane.setMnemonicAt(count, mnemonic); } public static void main(String args[]) { JFrame frame = new JFrame("Tabbed Pane Sample"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); String titles[] = { "General", "Security", "Content", "Connection", "Programs", "Advanced" }; int mnemonic[] = { KeyEvent.VK_G, KeyEvent.VK_S, KeyEvent.VK_C, KeyEvent.VK_O, KeyEvent.VK_P, KeyEvent.VK_A }; for (int i = 0, n = titles.length; i < n; i++) { add(tabbedPane, titles[i], mnemonic[i]); } tabbedPane.removeAll(); frame.add(tabbedPane, BorderLayout.CENTER); frame.setSize(400, 150); frame.setVisible(true); }
}</source>