import java.awt.*; |
import java.awt.event.*; |
import java.awt.datatransfer.*; |
import javax.swing.*; |
public class JToolBarTest |
{ |
JFrame jf = new JFrame( "测试工具条" ); |
JTextArea jta = new JTextArea( 6 , 35 ); |
JToolBar jtb = new JToolBar(); |
JMenuBar jmb = new JMenuBar(); |
Clipboard clipboard = Toolkit.getDefaultToolkit() |
.getSystemClipboard(); |
Action pasteAction = new AbstractAction( "粘贴" |
, new ImageIcon( "ico/paste.png" )) |
{ |
public void actionPerformed(ActionEvent e) |
{ |
if (clipboard.isDataFlavorAvailable(DataFlavor.stringFlavor)) |
{ |
try |
{ |
String content = (String)clipboard.getData |
(DataFlavor.stringFlavor); |
jta.replaceRange(content , jta.getSelectionStart() |
, jta.getSelectionEnd()); |
} |
catch (Exception ee) |
{ |
ee.printStackTrace(); |
} |
} |
} |
}; |
Action copyAction = new AbstractAction( "复制" |
, new ImageIcon( "ico/copy.png" )) |
{ |
public void actionPerformed(ActionEvent e) |
{ |
StringSelection contents = new StringSelection( |
jta.getSelectedText()); |
clipboard.setContents(contents, null ); |
if (clipboard.isDataFlavorAvailable(DataFlavor.stringFlavor)) |
{ |
pasteAction.setEnabled( true ); |
} |
} |
}; |
public void init() |
{ |
pasteAction.setEnabled( false ); // ① |
jf.add( new JScrollPane(jta)); |
JButton copyBn = new JButton(copyAction); |
JButton pasteBn = new JButton(pasteAction); |
JPanel jp = new JPanel(); |
jp.add(copyBn); |
jp.add(pasteBn); |
jf.add(jp , BorderLayout.SOUTH); |
jtb.add(copyAction); |
jtb.addSeparator(); |
jtb.add(pasteAction); |
edit.add(copyAction); |
edit.add(pasteAction); |
jmb.add(edit); |
jf.setJMenuBar(jmb); |
jtb.setMargin( new Insets( 20 , 10 , 5 , 30 )); |
jf.add(jtb , BorderLayout.NORTH); |
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
jf.pack(); |
jf.setVisible( true ); |
} |
public static void main(String[] args) |
{ |
new JToolBarTest().init(); |
} |
} |
by: 发表于:2018-01-04 11:23:40 顶(0) | 踩(0) 回复
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