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/*******************************************************************************
* Copyright (c) 2011, 2018 THALES GLOBAL SERVICES.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.tools.api.color;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.sirius.business.api.session.Session;
import org.eclipse.sirius.ui.business.api.preferences.SiriusUIPreferencesKeys;
import org.eclipse.sirius.ui.tools.api.color.VisualBindingManager;
import org.eclipse.sirius.viewpoint.RGBValues;
import org.eclipse.sirius.viewpoint.description.SystemColors;
import org.eclipse.sirius.viewpoint.description.UserColorsPalette;
import org.eclipse.sirius.viewpoint.description.UserFixedColor;
import org.eclipse.sirius.viewpoint.provider.SiriusEditPlugin;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
/**
* Manage the color in complement to {@link VisualBindingManager} with use of draw2d API to compute some colors.
*
* @author <a href="mailto:laurent.redor@obeo.fr">Laurent Redor</a>
*
*/
public class ColorManager {
private static final List<SystemColors> GRAYED_COLORS = Arrays.asList(SystemColors.BLACK_LITERAL, SystemColors.DARK_GRAY_LITERAL, SystemColors.GRAY_LITERAL, SystemColors.LIGHT_GRAY_LITERAL,
SystemColors.WHITE_LITERAL);
private static final List<SystemColors> RAINBOW_COLORS = Arrays.asList(SystemColors.DARK_RED_LITERAL, SystemColors.RED_LITERAL, SystemColors.LIGHT_RED_LITERAL, SystemColors.DARK_CHOCOLATE_LITERAL,
SystemColors.CHOCOLATE_LITERAL, SystemColors.LIGHT_CHOCOLATE_LITERAL, SystemColors.DARK_ORANGE_LITERAL, SystemColors.ORANGE_LITERAL, SystemColors.LIGHT_ORANGE_LITERAL,
SystemColors.DARK_YELLOW_LITERAL, SystemColors.YELLOW_LITERAL, SystemColors.LIGHT_YELLOW_LITERAL, SystemColors.DARK_GREEN_LITERAL, SystemColors.GREEN_LITERAL,
SystemColors.LIGHT_GREEN_LITERAL, SystemColors.DARK_BLUE_LITERAL, SystemColors.BLUE_LITERAL, SystemColors.LIGHT_BLUE_LITERAL, SystemColors.DARK_PURPLE_LITERAL, SystemColors.PURPLE_LITERAL,
SystemColors.LIGHT_PURPLE_LITERAL);
private static ColorManager defaultInstance;
private Map<String, Color> lighterColorCache;
/**
* Constructor.
*/
protected ColorManager() {
lighterColorCache = new HashMap<String, Color>();
}
/**
* Return the singleton instance.
*
* @return a default instance
*/
public static ColorManager getDefault() {
if (defaultInstance == null) {
defaultInstance = new ColorManager();
}
return defaultInstance;
}
/**
* Get a lighter color from the colorToLight.
*
* @param colorToLight
* the color to light
* @return A color get from the cache
*/
public Color getLighterColor(final RGBValues colorToLight) {
final String key = getKey(colorToLight);
if (!lighterColorCache.containsKey(key)) {
Color newLighterColor = FigureUtilities.mixColors(VisualBindingManager.getDefault().getColorFromRGBValues(colorToLight), ColorConstants.white, 0.4);
lighterColorCache.put(key, newLighterColor);
}
return lighterColorCache.get(key);
}
private String getKey(RGBValues color) {
StringBuilder sb = new StringBuilder("Color"); //$NON-NLS-1$
if (color != null) {
sb.append("_r:"); //$NON-NLS-1$
sb.append(color.getRed());
sb.append("_g:"); //$NON-NLS-1$
sb.append(color.getGreen());
sb.append("_b:"); //$NON-NLS-1$
sb.append(color.getBlue());
}
return sb.toString();
}
/**
* Collect the {@link FixedUserColor}s defined in the all the selected VSM of the given session and concat them to
* the {@link SystemColor}s.
*
* @param session
* the session in which to find FixedUserColor
* @return A map which key is the color name and the value is the RGB.
*/
public Map<String, RGB> collectVsmAndDefaultColors(Session session) {
// Get user fixed colors
// Get all the UserColorsPalette from every VSM resource of selected viewpoints
Map<String, RGB> vsmColors = new LinkedHashMap<>();
final IPreferenceStore preferenceStore = SiriusEditPlugin.getPlugin().getPreferenceStore();
if (preferenceStore != null && preferenceStore.getBoolean(SiriusUIPreferencesKeys.PREF_DISPLAY_VSM_USER_FIXED_COLOR_IN_PALETTE.name())) {
List<UserColorsPalette> palettes = session.getSelectedViewpoints(true).stream().map(EObject::eContainer).map(org.eclipse.sirius.viewpoint.description.Group.class::cast)
.flatMap(group -> group.getUserColorsPalettes().stream()).collect(Collectors.toList());
vsmColors = palettes.stream().flatMap(palette -> palette.getEntries().stream()).filter(UserFixedColor.class::isInstance).map(UserFixedColor.class::cast)
.collect(Collectors.toMap(c -> c.getName(), c -> new RGB(c.getRed(), c.getGreen(), c.getBlue()), (rgb1, rgb2) -> {
// in a case of collision of key we keep the first value
return rgb1;
}, () -> new LinkedHashMap<String, RGB>()));
}
// get system colors
Map<String, RGB> systemColors = VisualBindingManager.getDefault().getSystemPalette();
// organize the order of colors
Map<String, RGB> colors = new LinkedHashMap<>();
for (SystemColors color : GRAYED_COLORS) {
colors.put(color.getName(), systemColors.get(color.getName()));
}
for (String colorName : vsmColors.keySet()) {
colors.put(colorName, vsmColors.get(colorName));
}
for (SystemColors color : RAINBOW_COLORS) {
colors.put(color.getName(), systemColors.get(color.getName()));
}
return colors;
}
}
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