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package tim.prune.gui;
import java.awt.CardLayout;
import java.awt.Component;
import javax.swing.JPanel;
/**
* Layout class enhancing the regular card layout to add the ability to
* see which is the current card, how many cards there are, previous / next etc
*/
public class WizardLayout extends CardLayout
{
private JPanel _panel = null;
private int _currentCard = 0;
private int _numCards = 0;
/**
* Constructor
* @param inPanel panel controlled by this layout
*/
public WizardLayout(JPanel inPanel)
{
super();
_panel = inPanel;
_panel.setLayout(this);
}
/**
* Add a card to this layout
* @param inCard
*/
public void addCard(Component inCard)
{
_panel.add(inCard, "card" + _numCards);
_numCards++;
}
/**
* @return current card index (from 0)
*/
public int getCurrentCardIndex() {
return _currentCard;
}
/**
* Go to the first card
*/
public void showFirstCard()
{
first(_panel);
_currentCard = 0;
}
/**
* Go to the next card
*/
public void showNextCard()
{
if (_currentCard < (_numCards-1))
{
next(_panel);
_currentCard++;
}
}
/**
* Go to the previous card
*/
public void showPreviousCard()
{
if (_currentCard > 0)
{
previous(_panel);
_currentCard--;
}
}
/**
* @return true if this is the first card
*/
public boolean isFirstCard() {
return _currentCard == 0;
}
/**
* @return true if this is the last card
*/
public boolean isLastCard() {
return _currentCard == (_numCards-1);
}
/**
* @param inIndex index (from 0) of the card to show
*/
public void showCard(int inIndex)
{
if (inIndex >= 0 && inIndex < _numCards) {
show(_panel, "card" + inIndex);
_currentCard = inIndex;
}
}
}
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