CODEWITHSUNDEEP
javaswingjcomponentjcheckboxjtogglebutton
mediterranean
mediterranean

Reputation: 123

How to get JComboBox last ( previous) selection state

I know that subscribing for ItemListener on the checkbox one can get the ItemEvent.SELECTED/DESELECTED state inside the method:

public void itemStateChanged(ItemEvent e) {
    if(e.getStateChange()==ItemEvent.DESELECTED){
    }
....
}

But what I want to know is the "last selection state" that the JComboBox during the state-change is actually happening. As JCheckBox extends JToggleButton , there must me some way to know that as the java buttons do have an intermediate state-value like "pressed" before it actuallly changed to the new state. But I coudn't find out the way to have it in case of JCheckBox

Upvotes: 0

Views: 159

Answers (1)

mediterranean
mediterranean

Reputation: 123

what about if I cast the event source to AbstractButton and then do as following:

ChangeListener changeListener = new ChangeListener() {
  public void stateChanged(ChangeEvent changeEvent) {
    AbstractButton abstractButton = (AbstractButton) 
    changeEvent.getSource();
    ButtonModel buttonModel = abstractButton.getModel();
    boolean armed = buttonModel.isArmed();
    boolean pressed = buttonModel.isPressed();
    boolean selected = buttonModel.isSelected();
    .......
  }
};

Upvotes: 0

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