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Java > Open Source Codes > com > google > gwt > dev > shell > HeaderBarBase


1 /*
2  * Copyright 2006 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */

16 package com.google.gwt.dev.shell;
17
18 import org.eclipse.swt.SWT;
19 import org.eclipse.swt.events.DisposeEvent;
20 import org.eclipse.swt.events.DisposeListener;
21 import org.eclipse.swt.graphics.Color;
22 import org.eclipse.swt.layout.FillLayout;
23 import org.eclipse.swt.layout.GridData;
24 import org.eclipse.swt.layout.GridLayout;
25 import org.eclipse.swt.layout.RowLayout;
26 import org.eclipse.swt.widgets.Composite;
27 import org.eclipse.swt.widgets.Label;
28 import org.eclipse.swt.widgets.ToolBar;
29 import org.eclipse.swt.widgets.ToolItem;
30
31 /**
32  * Base class for <code>Composites</code> that contain <code>ToolItem</code>
33  * entities.
34  */

35 public class HeaderBarBase extends Composite implements DisposeListener {
36
37   private final Color bgColor;
38   private final ToolBar toolBar;
39
40   public HeaderBarBase(Composite parent) {
41     super(parent, SWT.NONE);
42
43     Composite outer = new Composite(this, SWT.NONE);
44     FillLayout fillLayout = new FillLayout();
45     fillLayout.marginHeight = 1;
46     fillLayout.marginWidth = 1;
47     setLayout(fillLayout);
48
49     bgColor = new Color(null, 239, 237, 216);
50     addDisposeListener(this);
51
52     GridLayout gridLayout = new GridLayout(2, false);
53     gridLayout.marginLeft = 8;
54     gridLayout.marginRight = 2;
55     gridLayout.marginTop = 0;
56     gridLayout.marginBottom = 0;
57     gridLayout.marginWidth = 0;
58     gridLayout.marginHeight = 0;
59     outer.setLayout(gridLayout);
60     outer.setBackground(bgColor);
61
62     toolBar = new ToolBar(outer, SWT.FLAT);
63     toolBar.setBackground(new Color(null, 255, 0, 0));
64     GridData data = new GridData();
65     data.grabExcessHorizontalSpace = true;
66     data.verticalAlignment = SWT.CENTER;
67     data.horizontalAlignment = SWT.FILL;
68     toolBar.setLayoutData(data);
69     toolBar.setBackground(bgColor);
70
71     RowLayout rowLayout = new RowLayout();
72     rowLayout.fill = true;
73     rowLayout.pack = false;
74     rowLayout.wrap = false;
75     toolBar.setLayout(rowLayout);
76
77     Label logoLabel = new Label(outer, SWT.BORDER | SWT.SHADOW_IN);
78     logoLabel.setImage(LowLevel.loadImage("logo.gif"));
79     logoLabel.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
80   }
81
82   public ToolBar getToolBar() {
83     return toolBar;
84   }
85
86   public ToolItem newItem(String JavaDoc imageName, String JavaDoc label, String JavaDoc tooltip) {
87     ToolItem item = new ToolItem(toolBar, SWT.PUSH);
88     item.setImage(LowLevel.loadImage(imageName));
89     item.setText(label);
90     item.setSelection(false);
91     item.setToolTipText(tooltip);
92     item.setWidth(60);
93     return item;
94   }
95
96   public void newSeparator() {
97     new ToolItem(toolBar, SWT.SEPARATOR);
98   }
99
100   public void widgetDisposed(DisposeEvent e) {
101     bgColor.dispose();
102   }
103 }
104
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