| 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.lttng.scope.tmf2.views.ui.jfx; |
| 11 | |
| 12 | import java.util.Map; |
| 13 | import java.util.concurrent.ConcurrentHashMap; |
| 14 | |
| 15 | import org.lttng.scope.tmf2.views.core.timegraph.model.render.ColorDefinition; |
| 16 | |
| 17 | import javafx.scene.paint.Color; |
| 18 | |
| 19 | public final class JfxColorFactory { |
| 20 | |
| 21 | private JfxColorFactory() {} |
| 22 | |
| 23 | private static final Map<ColorDefinition, Color> COLOR_MAP = new ConcurrentHashMap<>(); |
| 24 | private static final Map<ColorDefinition, Color> DERIVED_COLOR_MAP = new ConcurrentHashMap<>(); |
| 25 | |
| 26 | /** |
| 27 | * Instantiate a {@link Color} from a {@link ColorDefinition} object. |
| 28 | * |
| 29 | * @param colorDef |
| 30 | * The ColorDefinition |
| 31 | * @return The Color object |
| 32 | */ |
| 33 | public static synchronized Color getColorFromDef(ColorDefinition colorDef) { |
| 34 | Color color = COLOR_MAP.get(colorDef); |
| 35 | if (color == null) { |
| 36 | color = Color.rgb(colorDef.fRed, colorDef.fGreen, colorDef.fBlue, (double) colorDef.fAlpha / (double) ColorDefinition.MAX); |
| 37 | COLOR_MAP.put(colorDef, color); |
| 38 | } |
| 39 | return color; |
| 40 | } |
| 41 | |
| 42 | public static synchronized Color getDerivedColorFromDef(ColorDefinition colorDef) { |
| 43 | Color color = DERIVED_COLOR_MAP.get(colorDef); |
| 44 | if (color == null) { |
| 45 | color = getColorFromDef(colorDef); |
| 46 | color = color.desaturate().darker(); |
| 47 | DERIVED_COLOR_MAP.put(colorDef, color); |
| 48 | } |
| 49 | return color; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Convert a JavaFX {@link Color} to its equivalent {@link ColorDefinition}. |
| 54 | * |
| 55 | * @param color |
| 56 | * The color to convert |
| 57 | * @return A corresponding ColorDefinition |
| 58 | */ |
| 59 | public static ColorDefinition colorToColorDef(Color color) { |
| 60 | /* |
| 61 | * ColorDefintion works with integer values 0 to 255, but JavaFX colors |
| 62 | * works with doubles 0.0 to 0.1 |
| 63 | */ |
| 64 | int red = (int) Math.round(color.getRed() * 255); |
| 65 | int green = (int) Math.round(color.getGreen() * 255); |
| 66 | int blue = (int) Math.round(color.getBlue() * 255); |
| 67 | int opacity = (int) Math.round(color.getOpacity() * 255); |
| 68 | return new ColorDefinition(red, green, blue, opacity); |
| 69 | } |
| 70 | } |