Mercurial > projects > dwt2
view org.eclipse.ui.forms/src/org/eclipse/ui/internal/forms/widgets/WrappedPageBook.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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/******************************************************************************* * Copyright (c) 2004, 2007 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 org.eclipse.ui.internal.forms.widgets.WrappedPageBook; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Layout; import org.eclipse.ui.forms.widgets.ILayoutExtension; import java.lang.all; import java.util.Set; /** * A pagebook is a composite control where only a single control is visible at * a time. It is similar to a notebook, but without tabs. * <p> * This class may be instantiated; it is not intended to be subclassed. * </p> */ public class WrappedPageBook : Composite { class PageBookLayout : Layout, ILayoutExtension { protected Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) { if (wHint !is SWT.DEFAULT && hHint !is SWT.DEFAULT) return new Point(wHint, hHint); Point result = null; if (currentPage !is null) { result = currentPage.computeSize(wHint, hHint, flushCache); } else { result = new Point(0, 0); } return result; } protected void layout(Composite composite, bool flushCache) { if (currentPage !is null) { currentPage.setBounds(composite.getClientArea()); } } /* * (non-Javadoc) * * @see org.eclipse.ui.forms.widgets.ILayoutExtension#computeMaximumWidth(org.eclipse.swt.widgets.Composite, * bool) */ public int computeMaximumWidth(Composite parent, bool changed) { return computeSize(parent, SWT.DEFAULT, SWT.DEFAULT, changed).x; } /* * (non-Javadoc) * * @see org.eclipse.ui.forms.widgets.ILayoutExtension#computeMinimumWidth(org.eclipse.swt.widgets.Composite, * bool) */ public int computeMinimumWidth(Composite parent, bool changed) { return computeSize(parent, 0, SWT.DEFAULT, changed).x; } } /** * The current control; <code>null</code> if none. */ private Control currentPage = null; /** * Creates a new empty pagebook. * * @param parent * the parent composite * @param style * the SWT style bits */ public this(Composite parent, int style) { super(parent, style); setLayout(new PageBookLayout()); } /** * Shows the given page. This method has no effect if the given page is not * contained in this pagebook. * * @param page * the page to show */ public void showPage(Control page) { if (page is currentPage) return; if (page.getParent() !is this) return; Control oldPage = currentPage; currentPage = page; // show new page if (page !is null) { if (!page.isDisposed()) { //page.setVisible(true); layout(true); page.setVisible(true); } } // hide old *after* new page has been made visible in order to avoid // flashing if (oldPage !is null && !oldPage.isDisposed()) oldPage.setVisible(false); } public Point computeSize(int wHint, int hHint, bool changed) { return (cast(PageBookLayout) getLayout()).computeSize(this, wHint, hHint, changed); } }