GXT Feature Request: automatic assign variable to CardLayout

[bunyawat]

When I assign "com.extjs.gxt.ui.client.widget.layout.CardLayout" to "com.extjs.gxt.ui.client.widget.CardPanel"
It give me this snippet.

private void initComponents() {
initComponent(getCardPanel_1());
getCardPanel_1().setLayout(new CardLayout());
getCardPanel_1().add(getLogInComposite_1());
getCardPanel_1().add(getMainPageComposite_1());
}

It should auto generate variable for the CardLayout first in important properties window.
Since I need this variable to swap the card latter.

private void initComponents() {
initComponent(getCardPanel_1());
getCardPanel_1().setLayout(getCardLayOut());
getCardPanel_1().add(getLogInComposite_1());
getCardPanel_1().add(getMainPageComposite_1());
}

CardLayout getCardLayOut(){
if( cardLayout == null ){
cardLayout = new CardLayout();
}
return cardLayout;
}

private class LogInCompositeBtnNewButtonSelectionListener extends SelectionListener<ButtonEvent> {
public void componentSelected(final ButtonEvent ce) {
getCardLayOut().setActiveItem(getMainPageComposite_1());
}
}

[Eric Clayberg]

You don't need to assign CardLayout to CardPanel because it already uses that layout.

You can also directly set the active item for the CardPanel itself...

Code: Select all

private class LogInCompositeBtnNewButtonSelectionListener extends SelectionListener<ButtonEvent> {
    public void componentSelected(final ButtonEvent ce) {
    getCardPanel_1().setActiveItem(getMainPageComposite_1());
}

[bunyawat]

You don't need to assign CardLayout to CardPanel because it already uses that layout.

You can also directly set the active item for the CardPanel itself...

Code: Select all

private class LogInCompositeBtnNewButtonSelectionListener extends SelectionListener<ButtonEvent> {
    public void componentSelected(final ButtonEvent ce) {
    getCardPanel_1().setActiveItem(getMainPageComposite_1());
}

I have try this before. It does not work.
In GXT 's example code, they use "CardLayout.setActiveItem()".
That why I asking for this feature.

Anyway I try this and it wrok for me.
((CardLayout)getCardPanel_1().getLayout()).setActiveItem(getMainPageComposite_1());

[Eric Clayberg]

I have try this before. It does not work.

I just tried it, and it works just fine.

There is no difference between:

Code: Select all

getCardPanel_1().setActiveItem()

and:

Code: Select all

(CardLayout)getCardPanel_1().getLayout()).setActiveItem()

Look at the code for CardPanel.setActiveItem(), and you will see why...

Code: Select all

  /**
   * Sets the active (visible) item in the layout.
   *
   * @param component the active widget
   */
  public void setActiveItem(Component component) {
    layout.setActiveItem(component);
  }