org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/colors/ColorSettingsManager.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010 Ericsson
   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  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.colors;
  14
  15 import java.util.ArrayList;
  16 import java.util.Arrays;
  17
  18 import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
  19 import org.eclipse.linuxtools.tmf.ui.TmfUiPlugin;
  20 import org.eclipse.linuxtools.tmf.ui.viewers.timeAnalysis.widgets.TraceColorScheme;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.widgets.Display;
  23
  24 public class ColorSettingsManager {
  25
  26         private static final String COLOR_SETTINGS_FILE_NAME = "color_settings.xml"; //$NON-NLS-1$
  27         private static final String COLOR_SETTINGS_PATH_NAME =
  28         TmfUiPlugin.getDefault().getStateLocation().addTrailingSeparator().append(COLOR_SETTINGS_FILE_NAME).toString();
  29         private static final ColorSetting DEFAULT_COLOR_SETTING = new ColorSetting(
  30                         Display.getDefault().getSystemColor(SWT.COLOR_LIST_FOREGROUND).getRGB(),
  31                         Display.getDefault().getSystemColor(SWT.COLOR_LIST_BACKGROUND).getRGB(),
  32                         TraceColorScheme.BLACK_STATE,
  33                         null);
  34         public static final int PRIORITY_NONE = Integer.MAX_VALUE;
  35
  36         private static ColorSetting[] fColorSettings = ColorSettingsXML.load(COLOR_SETTINGS_PATH_NAME);
  37         private static ArrayList<IColorSettingsListener> fListeners = new ArrayList<IColorSettingsListener>();
  38
  39         public static ColorSetting[] getColorSettings() {
  40                 return (fColorSettings != null) ? Arrays.copyOf(fColorSettings, fColorSettings.length) : null;
  41         }
  42
  43         public static void setColorSettings(ColorSetting[] colorSettings) {
  44                 fColorSettings = (colorSettings != null) ? Arrays.copyOf(colorSettings, colorSettings.length) : null;
  45                 ColorSettingsXML.save(COLOR_SETTINGS_PATH_NAME, fColorSettings);
  46                 fireColorSettingsChanged();
  47         }
  48
  49         public static ColorSetting getColorSetting(ITmfEvent event) {
  50         for (int i = 0; i < fColorSettings.length; i++) {
  51                 ColorSetting colorSetting = fColorSettings[i];
  52                 if (colorSetting.getFilter() != null && colorSetting.getFilter().matches(event)) {
  53                         return colorSetting;
  54                 }
  55         }
  56         return DEFAULT_COLOR_SETTING;
  57         }
  58
  59         public static int getColorSettingPriority(ITmfEvent event) {
  60         for (int i = 0; i < fColorSettings.length; i++) {
  61                 ColorSetting colorSetting = fColorSettings[i];
  62                 if (colorSetting.getFilter() != null && colorSetting.getFilter().matches(event)) {
  63                         return i;
  64                 }
  65         }
  66         return PRIORITY_NONE;
  67         }
  68
  69         public static ColorSetting getColorSetting(int priority) {
  70                 if (priority < fColorSettings.length) {
  71                         return fColorSettings[priority];
  72                 }
  73                 return DEFAULT_COLOR_SETTING;
  74         }
  75
  76         public static void addColorSettingsListener(IColorSettingsListener listener) {
  77                 if (! fListeners.contains(listener)) {
  78                         fListeners.add(listener);
  79                 }
  80         }
  81
  82         public static void removeColorSettingsListener(IColorSettingsListener listener) {
  83                 fListeners.remove(listener);
  84         }
  85
  86         private static void fireColorSettingsChanged() {
  87                 for (IColorSettingsListener listener : fListeners) {
  88                         listener.colorSettingsChanged(fColorSettings);
  89                 }
  90         }
  91 }