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b0d3496e ASL |
1 | /*****************************************************************************\r |
2 | * Copyright (c) 2007, Intel Corporation.\r | |
3 | * All rights reserved. This program and the accompanying materials\r | |
4 | * are made available under the terms of the Eclipse Public License v1.0\r | |
5 | * which accompanies this distribution, and is available at\r | |
6 | * http://www.eclipse.org/legal/epl-v10.html\r | |
7 | *\r | |
8 | * Contributors:\r | |
9 | * Intel Corporation - Initial API and implementation\r | |
10 | * Ruslan A. Scherbakov, Intel - Initial API and implementation\r | |
11 | * Alvaro Sanchex-Leon - Udpated for TMF\r | |
12 | *\r | |
13 | * $Id: TraceCtrl.java,v 1.2 2007/02/27 18:37:36 ewchan Exp $ \r | |
14 | *****************************************************************************/\r | |
15 | \r | |
16 | package org.eclipse.linuxtools.tmf.ui.viewers.timeAnalysis.widgets;\r | |
17 | \r | |
18 | import org.eclipse.swt.SWT;\r | |
19 | import org.eclipse.swt.events.PaintEvent;\r | |
20 | import org.eclipse.swt.events.PaintListener;\r | |
21 | import org.eclipse.swt.graphics.Color;\r | |
22 | import org.eclipse.swt.graphics.Rectangle;\r | |
23 | import org.eclipse.swt.widgets.Canvas;\r | |
24 | import org.eclipse.swt.widgets.Composite;\r | |
25 | \r | |
26 | public abstract class TraceCtrl extends Canvas implements PaintListener {\r | |
27 | \r | |
28 | static public final int MARGIN = 4;\r | |
8b9fa226 | 29 | static public final int RIGHT_MARGIN = 2; // 2 pixels less to make sure end time is visible\r |
b0d3496e ASL |
30 | static public final int SMALL_ICON_SIZE = 16;\r |
31 | \r | |
32 | protected TraceColorScheme _colors;\r | |
33 | protected int _fontHeight = 0;\r | |
34 | \r | |
35 | public TraceCtrl(Composite parent, TraceColorScheme colors) {\r | |
36 | this(parent, colors, SWT.NO_BACKGROUND | SWT.NO_FOCUS);\r | |
37 | }\r | |
38 | \r | |
39 | public TraceCtrl(Composite parent, TraceColorScheme colors, int style) {\r | |
40 | super(parent, style);\r | |
41 | _colors = colors;\r | |
42 | addPaintListener(this);\r | |
43 | }\r | |
44 | \r | |
4e3aa37d | 45 | @Override\r |
b0d3496e ASL |
46 | public void dispose() {\r |
47 | super.dispose();\r | |
48 | }\r | |
49 | \r | |
d4011df2 | 50 | @Override\r |
b0d3496e ASL |
51 | public void paintControl(PaintEvent e) {\r |
52 | if (e.widget != this)\r | |
53 | return;\r | |
54 | _fontHeight = e.gc.getFontMetrics().getHeight();\r | |
55 | Rectangle bound = getClientArea();\r | |
56 | if (!bound.isEmpty()) {\r | |
57 | Color colBackup = e.gc.getBackground();\r | |
58 | paint(bound, e);\r | |
59 | e.gc.setBackground(colBackup);\r | |
60 | }\r | |
61 | }\r | |
62 | \r | |
63 | public int getFontHeight() {\r | |
64 | return _fontHeight;\r | |
65 | }\r | |
66 | \r | |
67 | abstract void paint(Rectangle bound, PaintEvent e);\r | |
68 | }\r |