Action Problem

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3 total messages Started by Guillermo Mon, 27 Sep 2004 01:57

#841

Author: Guillermo
Date: Mon, 27 Sep 2004 01:57

107 lines
4682 bytes

Hi,
I defined a simple action class (AccionAlta) to test actions functionality;
when I create a button in another Frame class (FrameBanco) referencing the
action class, I get the following error:

Hit uncaught exception java.lang.ClassCastException
java.lang.ClassCastException
 at javax.swing.AbstractButton.configurePropertiesFromAction(Unknown Source)
 at javax.swing.AbstractButton.configurePropertiesFromAction(Unknown Source)
 at javax.swing.JMenuItem.configurePropertiesFromAction(Unknown Source)
 at javax.swing.AbstractButton.setAction(Unknown Source)
 at javax.swing.JMenuItem.<init>(Unknown Source)
 at lyr.FrameBanco.<init>(FrameBanco.java:31)
 at lyr.FrameMain.jMenuBancos_actionPerformed(FrameMain.java:138)
 at
lyr.FrameMain_jMenuBancos_actionAdapter.actionPerformed(FrameMain.java:188)
 at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
 at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown
Source)
 at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
 at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
 at javax.swing.AbstractButton.doClick(Unknown Source)
 at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
 at
javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(Unkno
wn Source)
 at java.awt.Component.processMouseEvent(Unknown Source)
 at java.awt.Component.processEvent(Unknown Source)
 at java.awt.Container.processEvent(Unknown Source)
 at java.awt.Component.dispatchEventImpl(Unknown Source)
 at java.awt.Container.dispatchEventImpl(Unknown Source)
 at java.awt.Component.dispatchEvent(Unknown Source)
 at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
 at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
 at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
 at java.awt.Container.dispatchEventImpl(Unknown Source)
 at java.awt.Window.dispatchEventImpl(Unknown Source)
 at java.awt.Component.dispatchEvent(Unknown Source)
 at java.awt.EventQueue.dispatchEvent(Unknown Source)
 at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
 at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
 at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
 at java.awt.EventDispatchThread.run(Unknown Source)

----------
The Action Class is:

package lyr;

import javax.swing.*;
import java.awt.event.*;

public class AccionAlta extends AbstractAction
{

  public AccionAlta()
  {
    putValue(Action.NAME, "Alta");
    putValue(Action.SMALL_ICON, "icons/db insert.bmp");
    putValue(Action.SHORT_DESCRIPTION, "Alta" );
    putValue(Action.LONG_DESCRIPTION, "Alta de un nuevo registro");
    putValue(Action.MNEMONIC_KEY, "A");
    putValue(Action.ACTION_COMMAND_KEY, "Comando Alta");
  }

  public void actionPerformed(ActionEvent e)
  {
    JOptionPane.showMessageDialog(null,"Acci�n Alta!",
"Hey!",JOptionPane.INFORMATION_MESSAGE);
  }
}

-----
The error arises in the last line of the following code of FrameBanco class,
that references the action class:

package lyr;

import javax.swing.*;
import java.awt.*;
import com.borland.dx.dataset.DataModule;
import com.borland.dbswing.*;
import com.borland.jbcl.layout.*;
import java.awt.event.*;


public class FrameBanco
    extends JFrame
{

  AccionAlta accionAlta = new AccionAlta();

  protected DataModuleLyR dataModuleLyR;
  BorderLayout borderLayout2 = new BorderLayout();
  JMenuBar jMenuBarBanco = new JMenuBar();
  JMenu jMenuArchivo = new JMenu();
  JMenuItem jMenuItemSalida = new JMenuItem();
  JMenu jMenuEdicion = new JMenu();
  JMenuItem jMenuItemAlta = new JMenuItem(accionAlta);  // Error

------------

I appreciate any help please.

Thank you,
Guillermo

Re: Action Problem

#842

Author: Tor Iver Wilhelmsen [TeamB]
Date: Mon, 27 Sep 2004 06:50

13 lines
1250 bytes

"Guillermo" <gnajar@gnsis.net> writes:

>     putValue(Action.SMALL_ICON, "icons/db insert.bmp");

This should be an actual Icon, not just a file name. Use ImageIcon to
load the bitmap.

>     putValue(Action.MNEMONIC_KEY, "A");

Should be a KeyEvent, not a String.

See the docs for javax.swing.Action, the descriptions of the constants
say what type of object should be used as the value.

Re: Action Problem

#843

Author: Guillermo
Date: Tue, 28 Sep 2004 15:27

17 lines
1421 bytes

Thank you !

"Tor Iver Wilhelmsen [TeamB]" <tor.iver.wilhelmsen@broadpark.no> wrote in
message news:ufz54kxy7.fsf@broadpark.no...
> "Guillermo" <gnajar@gnsis.net> writes:
>
> >     putValue(Action.SMALL_ICON, "icons/db insert.bmp");
>
> This should be an actual Icon, not just a file name. Use ImageIcon to
> load the bitmap.
>
> >     putValue(Action.MNEMONIC_KEY, "A");
>
> Should be a KeyEvent, not a String.
>
> See the docs for javax.swing.Action, the descriptions of the constants
> say what type of object should be used as the value.

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