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Java > Open Source Codes > org > eclipse > pde > internal > ui > editor > plugin > FormFilteredTree


1 /*******************************************************************************
2  * Copyright (c) 2006, 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  *******************************************************************************/

11 package org.eclipse.pde.internal.ui.editor.plugin;
12
13 import org.eclipse.jface.viewers.TreeViewer;
14 import org.eclipse.pde.internal.ui.editor.FormEntryAdapter;
15 import org.eclipse.pde.internal.ui.editor.FormLayoutFactory;
16 import org.eclipse.pde.internal.ui.editor.IContextPart;
17 import org.eclipse.pde.internal.ui.parts.FormEntry;
18 import org.eclipse.swt.SWT;
19 import org.eclipse.swt.layout.GridData;
20 import org.eclipse.swt.layout.GridLayout;
21 import org.eclipse.swt.widgets.Composite;
22 import org.eclipse.swt.widgets.Text;
23 import org.eclipse.ui.dialogs.FilteredTree;
24 import org.eclipse.ui.dialogs.PatternFilter;
25 import org.eclipse.ui.forms.events.HyperlinkEvent;
26 import org.eclipse.ui.forms.widgets.FormToolkit;
27
28 public class FormFilteredTree extends FilteredTree {
29     
30     private FormToolkit toolkit;
31     
32     private FormEntry fEntryFilter;
33     
34     public FormFilteredTree(Composite parent, int treeStyle,
35             PatternFilter filter) {
36         super(parent, treeStyle, filter);
37     }
38     
39     protected void createControl(Composite parent, int treeStyle) {
40         toolkit = new FormToolkit(parent.getDisplay());
41         GridLayout layout = FormLayoutFactory.createClearGridLayout(false, 1);
42         // Space between filter text field and tree viewer
43
layout.verticalSpacing = 3;
44         setLayout(layout);
45         setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
46
47         if (showFilterControls){
48             filterComposite = new Composite(this, SWT.NONE);
49             GridLayout filterLayout = FormLayoutFactory.createClearGridLayout(false, 2);
50             filterLayout.horizontalSpacing = 5;
51             filterComposite.setLayout(filterLayout);
52             filterComposite.setFont(parent.getFont());
53             createFilterControls(filterComposite);
54             filterComposite.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING,
55                     true, false));
56         }
57         
58         treeComposite = new Composite(this, SWT.NONE);
59         treeComposite.setLayout(FormLayoutFactory.createClearGridLayout(false, 1));
60         GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
61         treeComposite.setLayoutData(data);
62         createTreeControl(treeComposite, treeStyle);
63     }
64
65     /* (non-Javadoc)
66      * @see org.eclipse.swt.widgets.Widget#dispose()
67      */

68     public void dispose() {
69         if (toolkit != null) {
70             toolkit.dispose();
71             toolkit = null;
72         }
73         super.dispose();
74     }
75
76     protected Text doCreateFilterText(Composite parent) {
77         int style = SWT.SINGLE | toolkit.getBorderStyle();
78         fEntryFilter = new FormEntry(parent, toolkit, null, style);
79         // Needed otherwise borders are missing on Windows Classic Theme
80
toolkit.paintBordersFor(parent);
81         setBackground(toolkit.getColors().getBackground());
82         return fEntryFilter.getText();
83     }
84
85     protected TreeViewer doCreateTreeViewer(Composite parent, int style) {
86         TreeViewer viewer = super.doCreateTreeViewer(parent, toolkit.getBorderStyle());
87         toolkit.paintBordersFor(viewer.getTree().getParent());
88         return viewer;
89     }
90     
91     /**
92      * @param part
93      */

94     public void createUIListenerEntryFilter(IContextPart part) {
95         // Required to enable Ctrl-V initiated paste operation on first focus
96
// See Bug # 157973
97
fEntryFilter.setFormEntryListener(new FormEntryAdapter(part) {
98             // Override all callback methods except focusGained
99
// See Bug # 184085
100
public void browseButtonSelected(FormEntry entry) {
101                 // NO-OP
102
}
103             public void linkActivated(HyperlinkEvent e) {
104                 // NO-OP
105
}
106             public void linkEntered(HyperlinkEvent e) {
107                 // NO-OP
108
}
109             public void linkExited(HyperlinkEvent e) {
110                 // NO-OP
111
}
112             public void selectionChanged(FormEntry entry) {
113                 // NO-OP
114
}
115             public void textDirty(FormEntry entry) {
116                 // NO-OP
117
}
118             public void textValueChanged(FormEntry entry) {
119                 // NO-OP
120
}
121         });
122     }
123     
124 }
125
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