Java/Swing JFC/Tooltip

Содержание

1 By default, the lines are left justified. Center the lines.
2 Changing ToolTip background color for Swing Applications
3 Colored ToolTip Example
4 Disable / enable application tool tips
5 Enabling and Disabling Tool Tips
6 Html tooltips
7 Italicize the second line
8 Make a tool tips appear immediately
9 Making Tool Tips Appear Immediately
10 Making Tool Tips Remain Visible
11 Modify the behaviour of the default JToolTip
12 MultiLine ToolTip Example
13 Set a tool tip for swing component
14 Set the location of the tool tip such that its nw corner coincides with the bottom center of the button
15 Setting a Tool Tip
16 Setting the Location of a Tool Tip
17 Showing an Image in a ToolTip
18 Showing an Image in a Tool Tip with HTML
19 ToolTip Location Example
20 Tooltip Sample
21 Use the default tool tip location
22 Working with Tooltip Text

By default, the lines are left justified. Center the lines.

   <source lang="java">

import javax.swing.JButton; public class Main {

 public static void main(String[] argv) throws Exception {
   JButton component = new JButton();

component.setToolTipText("<html>" + "This is a" + "
" + "tool tip" + "</html>");

}

 </source>

Changing ToolTip background color for Swing Applications

   <source lang="java">

import java.awt.Dimension; import java.awt.FlowLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.UIDefaults; import javax.swing.UIManager; import javax.swing.plaf.ColorUIResource; import javax.swing.plaf.metal.MetalLookAndFeel; class MyLookAndFeel extends MetalLookAndFeel {

 protected void initSystemColorDefaults(UIDefaults table) {
   super.initSystemColorDefaults(table);
   table.put("info", new ColorUIResource(255, 255, 225));
 }

} class Main extends JFrame {

 public Main() throws Exception{
   UIManager.setLookAndFeel("MyLookAndFeel");
   setLayout(new FlowLayout());
   JButton b = new JButton();
   b.setText("<html>A
 B</html>");
   b.setToolTipText("<html>C
D
E</html>");
   add(b);
   JLabel l = new JLabel("Z");
   l.setToolTipText("zzzzz...");
   add(l);
 }
 public static void main(String[] arg)throws Exception {
   Main m = new Main();
   m.setVisible(true);
   m.setSize(new Dimension(300, 150));
   m.validate();
 }

}

 </source>

Colored ToolTip Example

   <source lang="java">

// Example from http://www.crionics.ru/products/opensource/faq/swing_ex/SwingExamples.html /* (swing1.1) */

import java.awt.Color; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.UIManager; import javax.swing.plaf.ColorUIResource; /**

* @version 1.0 12/10/98
*/

public class ColoredToolTipExample extends JFrame {

 public ColoredToolTipExample() {
   super("Colored ToolTip Example");
   UIManager.put("ToolTip.foreground", new ColorUIResource(Color.red));
   UIManager.put("ToolTip.background", new ColorUIResource(Color.yellow));
   JButton button = new JButton("Hello, world");
   button.setToolTipText("Red / Yellow");
   getContentPane().add(button);
 }
 public static void main(String args[]) {
   try {
       UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
   } catch (Exception evt) {}
 
   ColoredToolTipExample f = new ColoredToolTipExample();
   f.addWindowListener(new WindowAdapter() {
     public void windowClosing(WindowEvent e) {
       System.exit(0);
     }
   });
   f.setSize(300, 100);
   f.show();
 }

}

 </source>

Disable / enable application tool tips

   <source lang="java">

import java.awt.FlowLayout; import java.awt.HeadlessException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.ToolTipManager; public class Main extends JFrame {

 public Main() throws HeadlessException {
   setSize(300, 300);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER));
   JButton disable = new JButton("DISABLE");
   disable.setToolTipText("disabled.");
   disable.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       ToolTipManager.sharedInstance().setEnabled(false);
     }
   });
   JButton enable = new JButton("ENABLE");
   enable.setToolTipText("enabled.");
   enable.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       ToolTipManager.sharedInstance().setEnabled(true);
     }
   });
   getContentPane().add(enable);
   getContentPane().add(disable);
 }
 public static void main(String[] args) {
   new Main().setVisible(true);
 }

}

 </source>

Enabling and Disabling Tool Tips

   <source lang="java">

import javax.swing.ToolTipManager; public class Main {

 public static void main(String[] argv) throws Exception {
   // Enable tool tips for the entire application
   ToolTipManager.sharedInstance().setEnabled(true);
   // Disable tool tips for the entire application
   ToolTipManager.sharedInstance().setEnabled(false);
 }

}

 </source>

Html tooltips

   <source lang="java">

import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class HtmlToolTipDemo extends JPanel {

 public static void main(String[] a) {
   JFrame mainFrame = new JFrame();
   JLabel label = new JLabel("label");
    label.setToolTipText("<html>First line
Second Line</html>");
   mainFrame.getContentPane().add(label);
   mainFrame.setSize(100, 100);
   mainFrame.setVisible(true);
 }

}

 </source>

Italicize the second line

   <source lang="java">

import javax.swing.JButton; public class Main {

 public static void main(String[] argv) throws Exception {
   JButton component = new JButton();
   component.setToolTipText("<html>" + "This is a" + "
" + "tool tip" + "</html>");
 }

}

 </source>

Make a tool tips appear immediately

   <source lang="java">

import javax.swing.ToolTipManager; public class Main {

 public static void main(String[] argv) throws Exception {
   // Get current delay
   int initialDelay = ToolTipManager.sharedInstance().getInitialDelay();
   // Show tool tips immediately
   ToolTipManager.sharedInstance().setInitialDelay(0);
   // Show tool tips after a second
   initialDelay = 1000;
   ToolTipManager.sharedInstance().setInitialDelay(initialDelay);
 }

}

 </source>

Making Tool Tips Appear Immediately

   <source lang="java">

import javax.swing.ToolTipManager; public class Main {

 public static void main(String[] argv) throws Exception {
   // Get current delay
   int initialDelay = ToolTipManager.sharedInstance().getInitialDelay();
   // Show tool tips immediately
   ToolTipManager.sharedInstance().setInitialDelay(0);
   // Show tool tips after a second
   initialDelay = 1000;
   ToolTipManager.sharedInstance().setInitialDelay(initialDelay);
 }

}

 </source>

Making Tool Tips Remain Visible

   <source lang="java">

import javax.swing.ToolTipManager; public class Main {

 public static void main(String[] argv) throws Exception {
   // Get current delay
   int dismissDelay = ToolTipManager.sharedInstance().getDismissDelay();
   // Keep the tool tip showing
   dismissDelay = Integer.MAX_VALUE;
   ToolTipManager.sharedInstance().setDismissDelay(dismissDelay);
 }

}

 </source>

Modify the behaviour of the default JToolTip

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Color; import java.awt.Point; import java.awt.event.MouseEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JToolTip; public class Main {

 public static void main(String args[]) {
   JFrame frame = new JFrame("JToolTip Sample");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JButton b1 = new JButton("Button 1") {
     public JToolTip createToolTip() {
       JToolTip tip = super.createToolTip();
       tip.setForeground(Color.YELLOW);
       return tip;
     }
     public Point getToolTipLocation(MouseEvent event) {
       return new Point((event.getX() + 100), (event.getY() + 100));
     }
   };
   b1.setToolTipText("HELLO");
   frame.add(b1, BorderLayout.NORTH);
   frame.setSize(300, 150);
   frame.setVisible(true);
 }

}

 </source>

MultiLine ToolTip Example

   <source lang="java">

// Example from http://www.crionics.ru/products/opensource/faq/swing_ex/SwingExamples.html /* (swing1.1beta3) */

import java.awt.Dimension; import java.awt.FontMetrics; import java.awt.Graphics; import java.awt.Toolkit; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.BufferedReader; import java.io.IOException; import java.io.StringReader; import java.util.Enumeration; import java.util.Vector; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JToolTip; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.plaf.metal.MetalToolTipUI; /**

* @version 1.0 11/09/98
*/

public class MultiLineToolTipExample extends JFrame {

 public MultiLineToolTipExample() {
   super("Multi-Line ToolTip Example");
   JButton button = new JButton("Hello, world") {
     public JToolTip createToolTip() {
       MultiLineToolTip tip = new MultiLineToolTip();
       tip.setComponent(this);
       return tip;
     }
   };
   button.setToolTipText("Hello\nworld");
   getContentPane().add(button);
 }
 public static void main(String args[]) {
   try {
       UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
   } catch (Exception evt) {}
 
   MultiLineToolTipExample f = new MultiLineToolTipExample();
   f.addWindowListener(new WindowAdapter() {
     public void windowClosing(WindowEvent e) {
       System.exit(0);
     }
   });
   f.setSize(300, 100);
   f.show();
 }

} class MultiLineToolTip extends JToolTip {

 public MultiLineToolTip() {
   setUI(new MultiLineToolTipUI());
 }

} class MultiLineToolTipUI extends MetalToolTipUI {

 private String[] strs;
 private int maxWidth = 0;
 public void paint(Graphics g, JComponent c) {
   FontMetrics metrics = Toolkit.getDefaultToolkit().getFontMetrics(
       g.getFont());
   Dimension size = c.getSize();
   g.setColor(c.getBackground());
   g.fillRect(0, 0, size.width, size.height);
   g.setColor(c.getForeground());
   if (strs != null) {
     for (int i = 0; i < strs.length; i++) {
       g.drawString(strs[i], 3, (metrics.getHeight()) * (i + 1));
     }
   }
 }
 public Dimension getPreferredSize(JComponent c) {
   FontMetrics metrics = Toolkit.getDefaultToolkit().getFontMetrics(
       c.getFont());
   String tipText = ((JToolTip) c).getTipText();
   if (tipText == null) {
     tipText = "";
   }
   BufferedReader br = new BufferedReader(new StringReader(tipText));
   String line;
   int maxWidth = 0;
   Vector v = new Vector();
   try {
     while ((line = br.readLine()) != null) {
       int width = SwingUtilities.ruputeStringWidth(metrics, line);
       maxWidth = (maxWidth < width) ? width : maxWidth;
       v.addElement(line);
     }
   } catch (IOException ex) {
     ex.printStackTrace();
   }
   int lines = v.size();
   if (lines < 1) {
     strs = null;
     lines = 1;
   } else {
     strs = new String[lines];
     int i = 0;
     for (Enumeration e = v.elements(); e.hasMoreElements(); i++) {
       strs[i] = (String) e.nextElement();
     }
   }
   int height = metrics.getHeight() * lines;
   this.maxWidth = maxWidth;
   return new Dimension(maxWidth + 6, height + 4);
 }

}

 </source>

Set a tool tip for swing component

   <source lang="java">

import java.awt.FlowLayout; import javax.swing.JFrame; import javax.swing.JLabel; public class Main {

 public static void main(String[] args) {
   JFrame frame = new JFrame("Tool Tip Demo");
   frame.setSize(200, 200);
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JLabel label = new JLabel("Hover on me!");
   label.setToolTipText("My JLabel Tool Tip");
   frame.getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER));
   frame.getContentPane().add(label);
   frame.setVisible(true);
 }

}

 </source>

Set the location of the tool tip such that its nw corner coincides with the bottom center of the button

   <source lang="java">

import java.awt.Point; import java.awt.event.MouseEvent; import javax.swing.JButton; public class Main {

 public static void main(String[] argv) throws Exception {
   JButton button = new JButton("My Button") {
     public Point getToolTipLocation(MouseEvent event) {
       return new Point(getWidth() / 2, getHeight());
     }
   };
 }

}

 </source>

Setting a Tool Tip

   <source lang="java">

import javax.swing.JButton; import javax.swing.JComponent; public class Main {

 public static void main(String[] argv) throws Exception {
   JComponent button = new JButton("Label");
   // Set tool tip text
   button.setToolTipText("tool tip text");
 }

}

 </source>

Setting the Location of a Tool Tip

   <source lang="java">

import java.awt.Point; import java.awt.event.MouseEvent; import javax.swing.JButton; public class Main {

 public static void main(String[] argv) throws Exception {
   JButton button = new JButton("My Button") {
     public Point getToolTipLocation(MouseEvent event) {
       return new Point(0, 0);
     }
   };
 }

}

 </source>

Showing an Image in a ToolTip

   <source lang="java">

import java.awt.Dimension; import java.awt.FontMetrics; import java.awt.Graphics; import java.awt.Image; import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.JLabel; import javax.swing.JToolTip; import javax.swing.SwingUtilities; import javax.swing.plaf.metal.MetalToolTipUI; public class Main {

 public static void main(String[] argv) {
   JLabel wonLabel = new JLabel() {
     public JToolTip createToolTip() {
       return new ImageToolTip();
     }
   };
   wonLabel.setToolTipText("asdf");
 }

} class ImageToolTip extends JToolTip {

 public ImageToolTip() {
   setUI(new ImageToolTipUI());
 }

} class ImageToolTipUI extends MetalToolTipUI {

 public void paint(Graphics g, JComponent c) {
   FontMetrics metrics = c.getFontMetrics(g.getFont());
   g.setColor(c.getForeground());
   g.drawString(((JToolTip) c).getTipText(), 1, 1);
   g.drawImage(new ImageIcon("yourImage").getImage(), 1, metrics.getHeight(), c);
 }
 public Dimension getPreferredSize(JComponent c) {
   FontMetrics metrics = c.getFontMetrics(c.getFont());
   String tipText = ((JToolTip) c).getTipText();
   if (tipText == null) {
     tipText = "";
   }
   Image image = new ImageIcon("yourImage").getImage();
   int width = SwingUtilities.ruputeStringWidth(metrics, tipText);
   int height = metrics.getHeight() + image.getHeight(c);
   if (width < image.getWidth(c)) {
     width = image.getWidth(c);
   }
   return new Dimension(width, height);
 }

}

 </source>

Showing an Image in a Tool Tip with HTML

   <source lang="java">

import javax.swing.JButton; public class Main {

 public static void main(String[] argv) throws Exception {
   JButton component = new JButton();
   String imageName = "file:image.jpg";
   component.setToolTipText("<html>Here is an image <img src=" + imageName + "></html>");
 }

}

 </source>

ToolTip Location Example

   <source lang="java">

// Example from http://www.crionics.ru/products/opensource/faq/swing_ex/SwingExamples.html /* (swing1.1.1) */

import java.awt.Container; import java.awt.Point; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.UIManager;

/**

* @version 1.0 08/27/98
*/

public class ToolTipLocationExample extends JFrame {

 public ToolTipLocationExample() {
   super("ToolTip Location Example");
   // above position
   JButton buttonAbove = new JButton("Above") {
     public Point getToolTipLocation(MouseEvent e) {
       return new Point(20, -30);
     }
   };
   buttonAbove.setToolTipText("Hello world");
   // blow (default) position
   JButton buttonBelow = new JButton("Below");
   buttonBelow.setToolTipText("Hello world");
   // whatever
   final RelocatableToolTipButton buttonRelocate = new RelocatableToolTipButton(
       "Relocate");
   buttonRelocate.setToolTipText("Hello world");
   buttonRelocate.addActionListener(new ActionListener() {
     JPanel messagePanel = createPanel();
     JTextField locationX, locationY;
     public void actionPerformed(ActionEvent e) {
       Point p = buttonRelocate.getToolTipLocation(null);
       if (p == null) {
         locationX.setText("default");
         locationY.setText("default");
       } else {
         locationX.setText(Integer.toString(p.x));
         locationY.setText(Integer.toString(p.y));
       }
       int result = JOptionPane.showOptionDialog(
           ToolTipLocationExample.this, messagePanel, "Location",
           JOptionPane.OK_CANCEL_OPTION,
           JOptionPane.QUESTION_MESSAGE, null, null, null);
       if (result == JOptionPane.OK_OPTION) {
         try {
           int x = Integer.parseInt(locationX.getText());
           int y = Integer.parseInt(locationY.getText());
           buttonRelocate.setToolTipLocation(new Point(x, y));
         } catch (NumberFormatException ex) {
           ex.printStackTrace();
         }
       }
     }
     private JPanel createPanel() {
       JPanel p = new JPanel();
       p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
       p.add(new JLabel("  X: "));
       p.add(locationX = new JTextField());
       p.add(new JLabel("  Y: "));
       p.add(locationY = new JTextField());
       return p;
     }
   });
   JPanel panel = new JPanel();
   panel.add(buttonAbove);
   panel.add(buttonBelow);
   panel.add(buttonRelocate);
   Container c = getContentPane();
   c.setLayout(new BoxLayout(c, BoxLayout.Y_AXIS));
   c.add(Box.createVerticalStrut(30));
   c.add(panel);
 }
 class RelocatableToolTipButton extends JButton {
   Point toolTipLocation;
   RelocatableToolTipButton(String label) {
     super(label);
     toolTipLocation = null;
   }
   public Point getToolTipLocation(MouseEvent e) {
     return toolTipLocation;
   }
   public void setToolTipLocation(Point location) {
     toolTipLocation = location;
   }
 }
 public static void main(String args[]) {
   try {
       UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
   } catch (Exception evt) {}
 
 
   ToolTipLocationExample frame = new ToolTipLocationExample();
   frame.addWindowListener(new WindowAdapter() {
     public void windowClosing(WindowEvent e) {
       System.exit(0);
     }
   });
   frame.setSize(300, 130);
   frame.setVisible(true);
 }

}

 </source>

Tooltip Sample

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Container; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JToolTip; public class TooltipSample {

 public static void main(String args[]) {
   String title = "Tooltip Sample";
   JFrame frame = new JFrame(title);
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Container container = frame.getContentPane();
   JPanel panel = new JPanel();
   panel.setToolTipText("<HtMl>Tooltip
Message");
   container.add(panel, BorderLayout.CENTER);
   JButton button = new JButton("Hello World") {
     public JToolTip createToolTip() {
       JToolTip tip = super.createToolTip();
       tip.setBackground(Color.yellow);
       tip.setForeground(Color.green);
       return tip;
     }
     public boolean contains(int x, int y) {
       if (x < 100) {
         setToolTipText("Got Green Eggs?");
       } else {
         setToolTipText("Got Ham?");
       }
       return super.contains(x, y);
     }
   };
   button.setToolTipText("Hello World");
   frame.getContentPane().add(button, BorderLayout.NORTH);
   frame.setSize(300, 150);
   frame.setVisible(true);
 }

}

 </source>

Use the default tool tip location

   <source lang="java">

import java.awt.Point; import java.awt.event.MouseEvent; import javax.swing.JButton; public class Main {

 public static void main(String[] argv) throws Exception {
   JButton button = new JButton("My Button") {
     public Point getToolTipLocation(MouseEvent event) {
       return null;
     }
   };
   // Set the tool tip text
   button.setToolTipText("aString");
 }

}

 </source>

Working with Tooltip Text

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Container; import javax.swing.JButton; import javax.swing.JFrame; public class ButtonTipTest {

 public static void main(String args[]) {
   JFrame frame = new JFrame("Tool Tips");
   Container contentPane = frame.getContentPane();
   JButton b = new JButton("Button");
   b.setToolTipText("Go Away");
   contentPane.add(b, BorderLayout.NORTH);
   frame.setSize(300, 200);
   frame.show();
 }

}

 </source>

Java/Swing JFC/Tooltip

Содержание

By default, the lines are left justified. Center the lines.

Changing ToolTip background color for Swing Applications

Colored ToolTip Example

Disable / enable application tool tips

Enabling and Disabling Tool Tips

Html tooltips

Italicize the second line

Make a tool tips appear immediately

Making Tool Tips Appear Immediately

Making Tool Tips Remain Visible

Modify the behaviour of the default JToolTip

MultiLine ToolTip Example

Set a tool tip for swing component

Set the location of the tool tip such that its nw corner coincides with the bottom center of the button

Setting a Tool Tip

Setting the Location of a Tool Tip

Showing an Image in a ToolTip

Showing an Image in a Tool Tip with HTML

ToolTip Location Example

Tooltip Sample

Use the default tool tip location

Working with Tooltip Text

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