FilesExpand file tree

 master

/

ShowAddListeners.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

59 lines (58 loc) · 1.86 KB

 master

/

ShowAddListeners.java

Copy path

Top

File metadata and controls

• Code
• Blame

59 lines (58 loc) · 1.86 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

package TIJ4_code.gui;

//: gui/ShowAddListeners.java

// Display the "addXXXListener" methods of any Swing class.

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.lang.reflect.*;

import java.util.regex.*;

import static TIJ4_code.net.mindview.util.SwingConsole.*;

public class ShowAddListeners extends JFrame {

private JTextField name = new JTextField(25);

private JTextArea results = new JTextArea(40, 65);

private static Pattern addListener =

Pattern.compile("(add\\w+?Listener\\(.*?\\))");

private static Pattern qualifier =

Pattern.compile("\\w+\\.");

class NameL implements ActionListener {

public void actionPerformed(ActionEvent e) {

String nm = name.getText().trim();

if(nm.length() == 0) {

results.setText("No match");

return;

}

Class<?> kind;

try {

kind = Class.forName("javax.swing." + nm);

} catch(ClassNotFoundException ex) {

results.setText("No match");

return;

}

Method[] methods = kind.getMethods();

results.setText("");

for(Method m : methods) {

Matcher matcher =

addListener.matcher(m.toString());

if(matcher.find())

results.append(qualifier.matcher(

matcher.group(1)).replaceAll("") + "\n");

}

}

}

public ShowAddListeners() {

NameL nameListener = new NameL();

name.addActionListener(nameListener);

JPanel top = new JPanel();

top.add(new JLabel("Swing class name (press Enter):"));

top.add(name);

add(BorderLayout.NORTH, top);

add(new JScrollPane(results));

// Initial data and test:

name.setText("JTextArea");

nameListener.actionPerformed(

new ActionEvent("", 0 ,""));

}

public static void main(String[] args) {

run(new ShowAddListeners(), 500, 400);

}

} ///:~