Mercurial > projects > dwt-addons
view dwtx/jface/wizard/WizardSelectionPage.d @ 104:04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
These new wrappers now use the tango.util.containers instead of the tango.util.collections.
author | Frank Benoit <benoit@tionex.de> |
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date | Thu, 07 Aug 2008 15:01:33 +0200 |
parents | ea8ff534f622 |
children |
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/******************************************************************************* * Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.jface.wizard.WizardSelectionPage; import dwtx.jface.wizard.IWizardPage; import dwtx.jface.wizard.IWizard; import dwtx.jface.wizard.WizardPage; import dwtx.jface.wizard.IWizardNode; import dwt.dwthelper.utils; import dwtx.dwtxhelper.Collection; /** * An abstract implementation of a wizard page that manages a * set of embedded wizards. * <p> * A wizard selection page should present a list of wizard nodes * corresponding to other wizards. When the end user selects one of * them from the list, the first page of the selected wizard becomes * the next page. The only new methods introduced by this class are * <code>getSelectedNode</code> and <code>setSelectedNode</code>. * Otherwise, the subclass contract is the same as <code>WizardPage</code>. * </p> */ public abstract class WizardSelectionPage : WizardPage { /** * The selected node; <code>null</code> if none. */ private IWizardNode selectedNode = null; /** * List of wizard nodes that have cropped up in the past * (element type: <code>IWizardNode</code>). */ private List selectedWizardNodes; /** * Creates a new wizard selection page with the given name, and * with no title or image. * * @param pageName the name of the page */ protected this(String pageName) { super(pageName); selectedWizardNodes = new ArrayList(); // Cannot finish from this page setPageComplete(false); } /** * Adds the given wizard node to the list of selected nodes if * it is not already in the list. * * @param node the wizard node, or <code>null</code> */ private void addSelectedNode(IWizardNode node) { if (node is null) { return; } if (selectedWizardNodes.contains(cast(Object)node)) { return; } selectedWizardNodes.add(cast(Object)node); } /** * The <code>WizardSelectionPage</code> implementation of * this <code>IWizardPage</code> method returns <code>true</code> * if there is a selected node. */ public override bool canFlipToNextPage() { return selectedNode !is null; } /** * The <code>WizardSelectionPage</code> implementation of an <code>IDialogPage</code> * method disposes of all nested wizards. Subclasses may extend. */ public override void dispose() { super.dispose(); // notify nested wizards for (int i = 0; i < selectedWizardNodes.size(); i++) { (cast(IWizardNode) selectedWizardNodes.get(i)).dispose(); } } /** * The <code>WizardSelectionPage</code> implementation of * this <code>IWizardPage</code> method returns the first page * of the currently selected wizard if there is one. */ public override IWizardPage getNextPage() { if (selectedNode is null) { return null; } bool isCreated = selectedNode.isContentCreated(); IWizard wizard = selectedNode.getWizard(); if (wizard is null) { setSelectedNode(null); return null; } if (!isCreated) { // Allow the wizard to create its pages wizard.addPages(); } return wizard.getStartingPage(); } /** * Returns the currently selected wizard node within this page. * * @return the wizard node, or <code>null</code> if no node is selected */ public IWizardNode getSelectedNode() { return selectedNode; } /** * Sets or clears the currently selected wizard node within this page. * * @param node the wizard node, or <code>null</code> to clear */ protected void setSelectedNode(IWizardNode node) { addSelectedNode(node); selectedNode = node; if (isCurrentPage()) { getContainer().updateButtons(); } } }