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comparison dwt/custom/CTabFolderLayout.d @ 155:a5afe31f5cdd

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Added custom controls
author Frank Benoit <benoit@tionex.de>
date Thu, 14 Feb 2008 19:18:37 +0100
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children 349b8c12e243
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154:b0279a69d976 155:a5afe31f5cdd
1 /*******************************************************************************
2 * Copyright (c) 2000, 2005 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 dwt.custom.CTabFolderLayout;
14
15
16 import dwt.DWT;
17 import dwt.graphics.GC;
18 import dwt.graphics.Point;
19 import dwt.widgets.Composite;
20 import dwt.widgets.Control;
21 import dwt.widgets.Layout;
22 import dwt.custom.CTabFolder;
23 import dwt.custom.CTabItem;
24 import dwt.dwthelper.utils;
25
26 /**
27 * This class provides the layout for CTabFolder
28 *
29 * @see CTabFolder
30 */
31 class CTabFolderLayout : Layout {
32 protected override Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) {
33 CTabFolder folder = cast(CTabFolder)composite;
34 CTabItem[] items = folder.items;
35 // preferred width of tab area to show all tabs
36 int tabW = 0;
37 GC gc = new GC(folder);
38 for (int i = 0; i < items.length; i++) {
39 if (folder.single) {
40 tabW = Math.max(tabW, items[i].preferredWidth(gc, true, false));
41 } else {
42 tabW += items[i].preferredWidth(gc, i is folder.selectedIndex, false);
43 }
44 }
45 gc.dispose();
46 tabW += 3;
47 if (folder.showMax) tabW += CTabFolder.BUTTON_SIZE;
48 if (folder.showMin) tabW += CTabFolder.BUTTON_SIZE;
49 if (folder.single) tabW += 3*CTabFolder.BUTTON_SIZE/2; //chevron
50 if (folder.topRight !is null) {
51 Point pt = folder.topRight.computeSize(DWT.DEFAULT, folder.tabHeight, flushCache);
52 tabW += 3 + pt.x;
53 }
54 if (!folder.single && !folder.simple) tabW += folder.curveWidth - 2*folder.curveIndent;
55
56 int controlW = 0;
57 int controlH = 0;
58 // preferred size of controls in tab items
59 for (int i = 0; i < items.length; i++) {
60 Control control = items[i].getControl();
61 if (control !is null && !control.isDisposed()){
62 Point size = control.computeSize (wHint, hHint, flushCache);
63 controlW = Math.max (controlW, size.x);
64 controlH = Math.max (controlH, size.y);
65 }
66 }
67
68 int minWidth = Math.max(tabW, controlW);
69 int minHeight = (folder.minimized) ? 0 : controlH;
70 if (minWidth is 0) minWidth = CTabFolder.DEFAULT_WIDTH;
71 if (minHeight is 0) minHeight = CTabFolder.DEFAULT_HEIGHT;
72
73 if (wHint !is DWT.DEFAULT) minWidth = wHint;
74 if (hHint !is DWT.DEFAULT) minHeight = hHint;
75
76 return new Point (minWidth, minHeight);
77 }
78 protected override bool flushCache(Control control) {
79 return true;
80 }
81 protected override void layout(Composite composite, bool flushCache) {
82 CTabFolder folder = cast(CTabFolder)composite;
83 // resize content
84 if (folder.selectedIndex !is -1) {
85 Control control = folder.items[folder.selectedIndex].getControl();
86 if (control !is null && !control.isDisposed()) {
87 control.setBounds(folder.getClientArea());
88 }
89 }
90 }
91 }