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1 | /******************************************************************************* |
2 | * Copyright (c) 2016 EfficiOS Inc., Alexandre Montplaisir | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | *******************************************************************************/ | |
9 | ||
10 | package org.eclipse.tracecompass.internal.provisional.tmf.ui.views.timegraph2.swt; | |
11 | ||
12 | import java.util.HashMap; | |
13 | import java.util.Map; | |
14 | ||
15 | import org.eclipse.swt.graphics.Color; | |
16 | import org.eclipse.swt.widgets.Display; | |
17 | import org.eclipse.tracecompass.internal.provisional.tmf.core.views.timegraph2.ColorDefinition; | |
18 | ||
19 | final class SwtColorFactory { | |
20 | ||
21 | private SwtColorFactory() {} | |
22 | ||
23 | private static final Map<ColorDefinition, Color> COLOR_MAP = new HashMap<>(); | |
24 | ||
25 | /** | |
26 | * Instantiate a {@link Color} from a {@link ColorDefinition} object. | |
27 | * | |
28 | * Must be called by the UI thread only, so it should not need any special | |
29 | * synchronization. | |
30 | * | |
31 | * @param colorDef | |
32 | * The ColorDefinition | |
33 | * @return The Color object | |
34 | */ | |
35 | public static Color getColorFromDef(ColorDefinition colorDef) { | |
36 | Color color = COLOR_MAP.get(colorDef); | |
37 | if (color == null) { | |
38 | color = new Color(Display.getDefault(), colorDef.fRed, colorDef.fGreen, colorDef.fBlue, colorDef.fAlpha); | |
39 | COLOR_MAP.put(colorDef, color); | |
40 | } | |
41 | return color; | |
42 | } | |
43 | ||
44 | } |