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Java > Open Source Codes > org > eclipse > search > internal > ui > util > PixelConverter


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  *******************************************************************************/
11 package org.eclipse.search.internal.ui.util;
12
13 import org.eclipse.swt.graphics.FontMetrics;
14 import org.eclipse.swt.graphics.GC;
15 import org.eclipse.swt.widgets.Control;
16
17 import org.eclipse.jface.dialogs.Dialog;
18
19 public class PixelConverter {
20     
21     private FontMetrics fFontMetrics;
22     
23     public PixelConverter(Control control) {
24         GC gc = new GC(control);
25         gc.setFont(control.getFont());
26         fFontMetrics= gc.getFontMetrics();
27         gc.dispose();
28     }
29     
30     /*
31      * @see org.eclipse.jface.dialogs.DialogPage#convertHeightInCharsToPixels(int)
32      */
33     public int convertHeightInCharsToPixels(int chars) {
34         return Dialog.convertHeightInCharsToPixels(fFontMetrics, chars);
35     }
36
37     /*
38      * @see org.eclipse.jface.dialogs.DialogPage#convertHorizontalDLUsToPixels(int)
39      */
40     public int convertHorizontalDLUsToPixels(int dlus) {
41         return Dialog.convertHorizontalDLUsToPixels(fFontMetrics, dlus);
42     }
43
44     /*
45      * @see org.eclipse.jface.dialogs.DialogPage#convertVerticalDLUsToPixels(int)
46      */
47     public int convertVerticalDLUsToPixels(int dlus) {
48         return Dialog.convertVerticalDLUsToPixels(fFontMetrics, dlus);
49     }
50     
51     /*
52      * @see org.eclipse.jface.dialogs.DialogPage#convertWidthInCharsToPixels(int)
53      */
54     public int convertWidthInCharsToPixels(int chars) {
55         return Dialog.convertWidthInCharsToPixels(fFontMetrics, chars);
56     }
57
58 }
59
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