blob: e58dc41645b4f43f62327edd029b64d02cc9b562 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*******************************************************************************
* Copyright (c) 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.launch.ui.editor.tabs;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.ControlListener;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
/**
* Provides table utilities.
*/
public final class TableUtils {
/**
* Determines the current visible width of the table and
* adjust the column width according to there relative weight.
*
* @param viewer The viewer or <code>null</code>.
*/
public static void adjustTableColumnWidth(Viewer viewer) {
if (!(viewer instanceof TableViewer)) return;
final TableViewer tableViewer = (TableViewer)viewer;
final Table table = tableViewer.getTable();
table.addControlListener(new ControlListener() {
@Override
public void controlResized(ControlEvent e) {
int sumColumnWidth = 0;
int tableWidth = table.getSize().x - table.getVerticalBar().getSize().x;
TableColumn[] columns = table.getColumns();
// Summarize the table column width
for (TableColumn column : columns) {
Object widthHint = column.getData("widthHint"); //$NON-NLS-1$
sumColumnWidth += widthHint instanceof Integer ? ((Integer)widthHint).intValue() : column.getWidth();
}
// Calculate the new width for each column
int sumColumnWidth2 = 0;
TableColumn maxColumn = null;
for (TableColumn column : columns) {
Object widthHint = column.getData("widthHint"); //$NON-NLS-1$
int width = widthHint instanceof Integer ? ((Integer)widthHint).intValue() : column.getWidth();
int weight = (width * 100) / sumColumnWidth;
int newWidth = (weight * tableWidth) / 100;
sumColumnWidth2 += newWidth;
column.setWidth(newWidth);
if (maxColumn == null || maxColumn.getWidth() < column.getWidth()) {
maxColumn = column;
}
}
// If we end up with a slighter larger width of all columns than
// the table widget is, reduce the size of the largest column
if (sumColumnWidth2 > tableWidth && maxColumn != null) {
int delta = sumColumnWidth2 - tableWidth + 2;
maxColumn.setWidth(maxColumn.getWidth() - delta);
}
table.removeControlListener(this);
}
@Override
public void controlMoved(ControlEvent e) {
}
});
}
}
|
