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package org.openslx.dozmod.gui.wizard;
import java.awt.Color;
import java.awt.Dialog;
import javax.swing.Icon;
import javax.swing.JPanel;
import javax.swing.UIManager;
@SuppressWarnings("serial")
public abstract class WizardPage extends JPanel {
private static final Color WARNING_COLOR = new Color(200, 100, 0);
private final String title;
private String description = null;
private String message = null;
private boolean isError = false;
private boolean isComplete = false;
protected final Wizard wizard;
/**
* Whether the user is allowed to go back to this page once they clicked
* next.
*/
protected boolean canComeBack = true;
public WizardPage(Wizard wizard, String title) {
if (wizard == null)
throw new NullPointerException("WizardPage needs a Wizard");
this.wizard = wizard;
this.title = title;
}
public String getTitle() {
return this.title;
}
public String getMessage() {
if (this.message != null)
return this.message;
return this.description;
}
private void updateHeader() {
if (this.wizard != null)
this.wizard.updateHeader(this);
}
protected Dialog getDialog() {
return wizard;
}
public boolean isComplete() {
return this.isComplete;
}
/*
* Feedback from the pages
*/
/**
* Called when the user wants to advance to the next page. You have the
* chance to run some sanity checks and return false if you want to prevent
* the user from switching the page, but in general it is recommended to
* disable the next button as long as there are errors in the current page.
*
* @return true allows to flip the page, false cancels
*/
protected boolean wantNextOrFinish() {
return isComplete;
}
/**
* Called when the page is being shown. This can be caused by three possible
* events:
* 1) The wizard opens and this is the fist page
* 2) The user clicked "Previous" and this is the previous page
* 3) The user clicked "Next" and this is the next page
*/
protected void onPageEnter() {
}
/**
* Called when the page is being hidden. This can be caused by three
* possible events:
* 1) The user clicked finish and this is the page currently displayed
* 2) The user clicked "Previous" and this is the current page
* 3) The user clicked "Next" and this is the current page
*/
protected void onPageLeave() {
}
/*
* Setters from derived classes
*/
protected void setPageComplete(boolean b) {
if (isComplete == b)
return;
isComplete = b;
if (wizard != null)
wizard.updateButtons(this);
}
protected void setDescription(String description) {
this.message = null;
this.description = description;
this.updateHeader();
}
protected void setErrorMessage(String message) {
this.message = message;
this.isError = true;
this.updateHeader();
}
protected void setWarningMessage(String message) {
this.message = message;
this.isError = false;
this.updateHeader();
}
protected Icon getMessageIcon() {
if (message == null)
return null;
if (isError)
return UIManager.getIcon("OptionPane.errorIcon");
return UIManager.getIcon("OptionPane.warningIcon");
}
public Color getMessageColor() {
if (message == null)
return Color.BLACK;
if (isError)
return Color.RED;
return WARNING_COLOR;
}
}
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