| /******************************************************************************* |
| * Copyright (c) 2004, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.themes; |
| |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * Registry of color, font, gradient, category and theme descriptors. |
| * |
| * @since 3.0 |
| */ |
| public interface IThemeRegistry { |
| |
| /** |
| * A comparator that will sort IHierarchalThemeElementDefinition elements by |
| * defaultsTo depth. |
| * |
| * @since 3.0 |
| */ |
| public static class HierarchyComparator implements Comparator<IHierarchalThemeElementDefinition> { |
| |
| private IHierarchalThemeElementDefinition[] definitions; |
| |
| /** |
| * Create a new comparator. |
| * |
| * @param definitions the elements to be sorted by depth, in ID order. |
| */ |
| public HierarchyComparator(IHierarchalThemeElementDefinition[] definitions) { |
| this.definitions = definitions; |
| } |
| |
| @Override |
| public int compare(IHierarchalThemeElementDefinition arg0, IHierarchalThemeElementDefinition arg1) { |
| String def0 = arg0 == null ? null : arg0.getDefaultsTo(); |
| String def1 = arg1 == null ? null : arg1.getDefaultsTo(); |
| |
| if (def0 == null && def1 == null) { |
| return 0; |
| } |
| |
| if (def0 == null) { |
| return -1; |
| } |
| |
| if (def1 == null) { |
| return 1; |
| } |
| |
| return compare(getDefaultsTo(def0), getDefaultsTo(def1)); |
| } |
| |
| /** |
| * @param id the identifier to search for. |
| * @return the <code>IHierarchalThemeElementDefinition</code> that matches the |
| * id. |
| */ |
| private IHierarchalThemeElementDefinition getDefaultsTo(String id) { |
| int idx = Arrays.binarySearch(definitions, id, ID_COMPARATOR); |
| if (idx >= 0) { |
| return definitions[idx]; |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * A comparator that will sort <code>IThemeElementDefinition</code> elements by |
| * id depth. You may use this on both <code>String</code> and |
| * <code>IThemeElementDefinition</code> objects in order to perform searching. |
| * |
| * @since 3.0 |
| */ |
| Comparator<Object> ID_COMPARATOR = new Comparator<>() { |
| |
| @Override |
| public int compare(Object arg0, Object arg1) { |
| String str0 = getCompareString(arg0); |
| String str1 = getCompareString(arg1); |
| return str0.compareTo(str1); |
| } |
| |
| /** |
| * @param object |
| * @return <code>String</code> representation of the object. |
| */ |
| private String getCompareString(Object object) { |
| if (object instanceof String) { |
| return (String) object; |
| } else if (object instanceof IThemeElementDefinition) { |
| return ((IThemeElementDefinition) object).getId(); |
| } |
| return ""; //$NON-NLS-1$ |
| } |
| }; |
| |
| /** |
| * Returns the category matching the provided id. |
| * |
| * @param id the id to search for |
| * @return the element matching the provided id, or <code>null</code> if not |
| * found |
| */ |
| ThemeElementCategory findCategory(String id); |
| |
| /** |
| * Returns the color matching the provided id. |
| * |
| * @param id the id to search for |
| * @return the element matching the provided id, or <code>null</code> if not |
| * found |
| */ |
| ColorDefinition findColor(String id); |
| |
| /** |
| * Returns the font matching the provided id. |
| * |
| * @param id the id to search for |
| * @return the element matching the provided id, or <code>null</code> if not |
| * found |
| */ |
| FontDefinition findFont(String id); |
| |
| /** |
| * Returns the theme matching the provided id. |
| * |
| * @param id the id to search for |
| * @return the element matching the provided id, or <code>null</code> if not |
| * found |
| */ |
| IThemeDescriptor findTheme(String id); |
| |
| /** |
| * Returns a list of categories defined in the registry. |
| * |
| * @return the categories in this registry |
| */ |
| ThemeElementCategory[] getCategories(); |
| |
| /** |
| * Returns a list of colors defined in the registry. |
| * |
| * @return the colors in this registry |
| */ |
| ColorDefinition[] getColors(); |
| |
| /** |
| * Returns a list of colors defined for the given theme. This is the set of base |
| * colours overlayed with any theme specific overrides. |
| * |
| * @param themeId the theme id |
| * @return the colors in this theme |
| */ |
| ColorDefinition[] getColorsFor(String themeId); |
| |
| /** |
| * Returns a list of fonts defined for the given theme. This is the set of base |
| * fonts overlayed with any theme specific overrides. |
| * |
| * @param themeId the theme id |
| * @return the fonts in this theme |
| */ |
| FontDefinition[] getFontsFor(String themeId); |
| |
| /** |
| * Returns a list of fonts defined in the registry. |
| * |
| * @return the fonts in this registry |
| */ |
| FontDefinition[] getFonts(); |
| |
| /** |
| * Returns a list of themes defined in the registry. |
| * |
| * @return the themes in this registry |
| */ |
| IThemeDescriptor[] getThemes(); |
| |
| /** |
| * Return the data map. |
| * |
| * @return the data map |
| */ |
| Map<Object, Object> getData(); |
| |
| /** |
| * Return the set of category presentation bindings. |
| * |
| * @param category the category to test |
| * @return the set of bindings or <code>null</code> if this category has no |
| * bindings |
| */ |
| Set<?> getPresentationsBindingsFor(ThemeElementCategory category); |
| } |