Swing Refresher

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Swing Refresher

• David Merrill
• 5/14/2002
• http//cs377a.stanford.edu/

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What is Swing?

• The Java Foundation Classes (JFC) API extends the
  original Abstract Window Toolkit (AWT) by adding
  a comprehensive set of graphical user interface
  class libraries.
• JFC/Swing components include
• Pluggable Look and Feel
• Accessibility API
• Java 2DTM API (Java 2 only)
• Drag and Drop (Java 2 only)
• AWT
• Internationalization

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JFC/Swing GUI Components

• Written in the Java programming language
• Customizable look-and-feel
• No reliance on the native windowing system
• Incorporated in the Java 2 platform

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JFC/Swing GUI Components
Top-Level Containers
Applet
Dialog
Frame
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JFC/Swing GUI Components
General-Purpose Containers
Tabbed Pane
Split Pane
Scroll Pane
Toolbar
Panel
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JFC/Swing GUI Components
Special-Purpose Containers
Internal Frame
Layered Pane
Root Pane
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JFC/Swing GUI Components
Basic Controls
List
Combobox
Buttons
Slider
Menu
Text Fields
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JFC/Swing GUI Components
Uneditable Information Displays
Progress Bar
Label
Tooltip
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JFC/Swing GUI Components
Editable Displays of Formatted Information
Tree
Text
Table
Color Chooser
File Chooser
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JFrame

• public static void main(String s)
• JFrame frame new
  JFrame("FrameDemo")
• frame.addWindowListener(new
  WindowAdapter()
• public void
  windowClosing(WindowEvent e) System.exit(0)
• )
• //...create a blank label, set
  its preferred size...
• frame.getContentPane().add(empty
  Label, BorderLayout.CENTER)
• frame.pack()
• frame.setVisible(true)

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JTabbedPane

• ImageIcon icon new
  ImageIcon("images/middle.gif")
• JTabbedPane tabbedPane new
  JTabbedPane()
• Component panel1
  makeTextPanel("Blah") //(returns a JPanel)
• tabbedPane.addTab("One", icon,
  panel1, "Does nothing")
• tabbedPane.setSelectedIndex(0)
• Component panel2
  makeTextPanel("Blah blah")
• tabbedPane.addTab("Two", icon,
  panel2, "Does twice as much nothing")
• Component panel3
  makeTextPanel("Blah blah blah")
• tabbedPane.addTab("Three", icon,
  panel3, "Still does nothing")
• Component panel4
  makeTextPanel("Blah blah blah blah")
• tabbedPane.addTab("Four", icon,
  panel4, "Does nothing at all")

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JTabbedPane

• ImageIcon icon new
  ImageIcon("images/middle.gif")
• JTabbedPane tabbedPane new
  JTabbedPane()
• Component panel1
  makeTextPanel("Blah") //(returns a JPanel)
• tabbedPane.addTab("One", icon,
  panel1, "Does nothing")
• tabbedPane.setSelectedIndex(0)
• Component panel2
  makeTextPanel("Blah blah")
• tabbedPane.addTab("Two", icon,
  panel2, "Does twice as much nothing")
• Component panel3
  makeTextPanel("Blah blah blah")
• tabbedPane.addTab("Three", icon,
  panel3, "Still does nothing")
• Component panel4
  makeTextPanel("Blah blah blah blah")
• tabbedPane.addTab("Four", icon,
  panel4, "Does nothing at all")

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JGlassPane

• private void redispatchMouseEvent(Mou
  seEvent e, boolean repaint)
• // get the point from the MouseEvent
• int eventID e.getID()
• if (containerPoint.y lt 0)
• inMenuBar true
• //...set container and
  containerPoint accordingly...
• testForDrag(eventID)
• component SwingUtilities.getDe
  epestComponentAt(
• 
  container,
• 
  containerPoint.x,
• 
  containerPoint.y)
• if (component.equals(liveButton)
  )
• inButton true
• testForDrag(eventID)
• if (inMenuBar inButton
  inDrag)

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JMenuBar

• //in the constructor for a JFrame
  subclass
• JMenuBar menuBar
• JMenu menu, submenu
• JMenuItem menuItem
• JCheckBoxMenuItem cbMenuItem
• JRadioButtonMenuItem rbMenuItem
• ...
• //Create the menu bar.
• menuBar new JMenuBar()
• setJMenuBar(menuBar)
• //Build the first menu.
• menu new JMenu("A Menu")
• menu.setMnemonic(KeyEvent.VK_A)
• menu.getAccessibleContext().setAcces
  sibleDescription("The only menu in this program
  that has menu items")
• menuBar.add(menu)
• //a group of JMenuItems
• menuItem new JMenuItem("A
  text-only menu item",KeyEvent.VK_T)

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URL

http//java.sun.com/docs/books/tutorial/uiswing/co
mponents/components.html