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comparison dwtx/ui/internal/forms/widgets/WrappedPageBook.d @ 75:5d489b9f966c

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Fix continue porting
author Frank Benoit <benoit@tionex.de>
date Sat, 24 May 2008 05:11:16 +0200
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74:dad2e11b8ae4 75:5d489b9f966c
1 /*******************************************************************************
2 * Copyright (c) 2004, 2007 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module dwtx.ui.internal.forms.widgets.WrappedPageBook;
14
15 import dwt.DWT;
16 import dwt.graphics.Point;
17 import dwt.widgets.Composite;
18 import dwt.widgets.Control;
19 import dwt.widgets.Layout;
20 import dwtx.ui.forms.widgets.ILayoutExtension;
21
22 import dwt.dwthelper.utils;
23
24 /**
25 * A pagebook is a composite control where only a single control is visible at
26 * a time. It is similar to a notebook, but without tabs.
27 * <p>
28 * This class may be instantiated; it is not intended to be subclassed.
29 * </p>
30 */
31 public class WrappedPageBook : Composite {
32 class PageBookLayout : Layout, ILayoutExtension {
33 protected Point computeSize(Composite composite, int wHint, int hHint,
34 bool flushCache) {
35 if (wHint !is DWT.DEFAULT && hHint !is DWT.DEFAULT)
36 return new Point(wHint, hHint);
37 Point result = null;
38 if (currentPage !is null) {
39 result = currentPage.computeSize(wHint, hHint, flushCache);
40 } else {
41 result = new Point(0, 0);
42 }
43 return result;
44 }
45 protected void layout(Composite composite, bool flushCache) {
46 if (currentPage !is null) {
47 currentPage.setBounds(composite.getClientArea());
48 }
49 }
50 /*
51 * (non-Javadoc)
52 *
53 * @see dwtx.ui.forms.widgets.ILayoutExtension#computeMaximumWidth(dwt.widgets.Composite,
54 * bool)
55 */
56 public int computeMaximumWidth(Composite parent, bool changed) {
57 return computeSize(parent, DWT.DEFAULT, DWT.DEFAULT, changed).x;
58 }
59 /*
60 * (non-Javadoc)
61 *
62 * @see dwtx.ui.forms.widgets.ILayoutExtension#computeMinimumWidth(dwt.widgets.Composite,
63 * bool)
64 */
65 public int computeMinimumWidth(Composite parent, bool changed) {
66 return computeSize(parent, 0, DWT.DEFAULT, changed).x;
67 }
68 }
69 /**
70 * The current control; <code>null</code> if none.
71 */
72 private Control currentPage = null;
73 /**
74 * Creates a new empty pagebook.
75 *
76 * @param parent
77 * the parent composite
78 * @param style
79 * the DWT style bits
80 */
81 public this(Composite parent, int style) {
82 super(parent, style);
83 setLayout(new PageBookLayout());
84 }
85 /**
86 * Shows the given page. This method has no effect if the given page is not
87 * contained in this pagebook.
88 *
89 * @param page
90 * the page to show
91 */
92 public void showPage(Control page) {
93 if (page is currentPage)
94 return;
95 if (page.getParent() !is this)
96 return;
97 Control oldPage = currentPage;
98 currentPage = page;
99 // show new page
100 if (page !is null) {
101 if (!page.isDisposed()) {
102 //page.setVisible(true);
103 layout(true);
104 page.setVisible(true);
105 }
106 }
107 // hide old *after* new page has been made visible in order to avoid
108 // flashing
109 if (oldPage !is null && !oldPage.isDisposed())
110 oldPage.setVisible(false);
111 }
112 public Point computeSize(int wHint, int hHint, bool changed) {
113 return (cast(PageBookLayout) getLayout()).computeSize(this, wHint, hHint,
114 changed);
115 }
116 }