Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * 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: * IBM Corporation - initial API and implementation *******************************************************************************/ package ext.org.eclipse.jdt.internal.ui.text; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.RGB; import org.eclipse.jdt.ui.PreferenceConstants; import org.eclipse.jdt.ui.text.IColorManager; import org.eclipse.jdt.ui.text.IJavaPartitions; import patch.org.eclipse.jdt.ui.text.JavaTextTools; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferenceConverter; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.jface.text.IDocument; import org.eclipse.jface.text.contentassist.ContentAssistant; import org.eclipse.jface.text.contentassist.IContentAssistProcessor; import org.eclipse.ui.IWorkbenchPreferenceConstants; import patch.org.eclipse.jdt.internal.ui.JavaPlugin; import ext.org.eclipse.jdt.internal.ui.text.java.JavaCompletionProcessor; import ext.org.eclipse.jdt.internal.ui.text.javadoc.JavadocCompletionProcessor; public class ContentAssistPreference { /** Preference key for content assist auto activation */ private final static String AUTOACTIVATION = PreferenceConstants.CODEASSIST_AUTOACTIVATION; /** Preference key for content assist auto activation delay */ private final static String AUTOACTIVATION_DELAY = PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY; /** Preference key for content assist parameters color */ private final static String PARAMETERS_FOREGROUND = PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND; /** Preference key for content assist parameters color */ private final static String PARAMETERS_BACKGROUND = PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND; /** Preference key for content assist auto insert */ private final static String AUTOINSERT = PreferenceConstants.CODEASSIST_AUTOINSERT; /** Preference key for java content assist auto activation triggers */ private final static String AUTOACTIVATION_TRIGGERS_JAVA = PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVA; /** Preference key for javadoc content assist auto activation triggers */ private final static String AUTOACTIVATION_TRIGGERS_JAVADOC = PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVADOC; /** Preference key for visibility of proposals */ private final static String SHOW_VISIBLE_PROPOSALS = PreferenceConstants.CODEASSIST_SHOW_VISIBLE_PROPOSALS; /** Preference key for case sensitivity of proposals */ private final static String CASE_SENSITIVITY = PreferenceConstants.CODEASSIST_CASE_SENSITIVITY; /** Preference key for adding imports on code assist */ /** Preference key for filling argument names on method completion */ private static final String FILL_METHOD_ARGUMENTS = PreferenceConstants.CODEASSIST_FILL_ARGUMENT_NAMES; /** Preference key for prefix completion. */ private static final String PREFIX_COMPLETION = PreferenceConstants.CODEASSIST_PREFIX_COMPLETION; /** * Preference key for colored labels. * @since 3.4 */ private static final String USE_COLORED_LABELS = IWorkbenchPreferenceConstants.USE_COLORED_LABELS; private static Color getColor(IPreferenceStore store, String key, IColorManager manager) { RGB rgb = PreferenceConverter.getColor(store, key); return manager.getColor(rgb); } private static Color getColor(IPreferenceStore store, String key) { JavaTextTools textTools = JavaPlugin.getDefault().getJavaTextTools(); return getColor(store, key, textTools.getColorManager()); } private static JavaCompletionProcessor getJavaProcessor(ContentAssistant assistant) { IContentAssistProcessor p = assistant.getContentAssistProcessor(IDocument.DEFAULT_CONTENT_TYPE); if (p instanceof JavaCompletionProcessor) return (JavaCompletionProcessor) p; return null; } private static JavadocCompletionProcessor getJavaDocProcessor(ContentAssistant assistant) { IContentAssistProcessor p = assistant.getContentAssistProcessor(IJavaPartitions.JAVA_DOC); if (p instanceof JavadocCompletionProcessor) return (JavadocCompletionProcessor) p; return null; } private static void configureJavaProcessor(ContentAssistant assistant, IPreferenceStore store) { JavaCompletionProcessor jcp = getJavaProcessor(assistant); if (jcp == null) return; String triggers = store.getString(AUTOACTIVATION_TRIGGERS_JAVA); if (triggers != null) jcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray()); boolean enabled = store.getBoolean(SHOW_VISIBLE_PROPOSALS); jcp.restrictProposalsToVisibility(enabled); enabled = store.getBoolean(CASE_SENSITIVITY); jcp.restrictProposalsToMatchingCases(enabled); } private static void configureJavaDocProcessor(ContentAssistant assistant, IPreferenceStore store) { JavadocCompletionProcessor jdcp = getJavaDocProcessor(assistant); if (jdcp == null) return; String triggers = store.getString(AUTOACTIVATION_TRIGGERS_JAVADOC); if (triggers != null) jdcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray()); boolean enabled = store.getBoolean(CASE_SENSITIVITY); jdcp.restrictProposalsToMatchingCases(enabled); } /** * Configure the given content assistant from the given store. * * @param assistant the content assistant * @param store the preference store */ public static void configure(ContentAssistant assistant, IPreferenceStore store) { JavaTextTools textTools = JavaPlugin.getDefault().getJavaTextTools(); IColorManager manager = textTools.getColorManager(); boolean enabled = store.getBoolean(AUTOACTIVATION); assistant.enableAutoActivation(enabled); int delay = store.getInt(AUTOACTIVATION_DELAY); assistant.setAutoActivationDelay(delay); Color c = getColor(store, PARAMETERS_FOREGROUND, manager); assistant.setContextInformationPopupForeground(c); assistant.setContextSelectorForeground(c); c = getColor(store, PARAMETERS_BACKGROUND, manager); assistant.setContextInformationPopupBackground(c); assistant.setContextSelectorBackground(c); enabled = store.getBoolean(AUTOINSERT); assistant.enableAutoInsert(enabled); enabled = store.getBoolean(PREFIX_COMPLETION); assistant.enablePrefixCompletion(enabled); enabled = store.getBoolean(USE_COLORED_LABELS); assistant.enableColoredLabels(enabled); configureJavaProcessor(assistant, store); configureJavaDocProcessor(assistant, store); } private static void changeJavaProcessor(ContentAssistant assistant, IPreferenceStore store, String key) { JavaCompletionProcessor jcp = getJavaProcessor(assistant); if (jcp == null) return; if (AUTOACTIVATION_TRIGGERS_JAVA.equals(key)) { String triggers = store.getString(AUTOACTIVATION_TRIGGERS_JAVA); if (triggers != null) jcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray()); } else if (SHOW_VISIBLE_PROPOSALS.equals(key)) { boolean enabled = store.getBoolean(SHOW_VISIBLE_PROPOSALS); jcp.restrictProposalsToVisibility(enabled); } else if (CASE_SENSITIVITY.equals(key)) { boolean enabled = store.getBoolean(CASE_SENSITIVITY); jcp.restrictProposalsToMatchingCases(enabled); } } private static void changeJavaDocProcessor(ContentAssistant assistant, IPreferenceStore store, String key) { JavadocCompletionProcessor jdcp = getJavaDocProcessor(assistant); if (jdcp == null) return; if (AUTOACTIVATION_TRIGGERS_JAVADOC.equals(key)) { String triggers = store.getString(AUTOACTIVATION_TRIGGERS_JAVADOC); if (triggers != null) jdcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray()); } else if (CASE_SENSITIVITY.equals(key)) { boolean enabled = store.getBoolean(CASE_SENSITIVITY); jdcp.restrictProposalsToMatchingCases(enabled); } } /** * Changes the configuration of the given content assistant according to the given property * change event and the given preference store. * * @param assistant the content assistant * @param store the preference store * @param event the property change event */ public static void changeConfiguration(ContentAssistant assistant, IPreferenceStore store, PropertyChangeEvent event) { String p = event.getProperty(); if (AUTOACTIVATION.equals(p)) { boolean enabled = store.getBoolean(AUTOACTIVATION); assistant.enableAutoActivation(enabled); } else if (AUTOACTIVATION_DELAY.equals(p)) { int delay = store.getInt(AUTOACTIVATION_DELAY); assistant.setAutoActivationDelay(delay); } else if (PARAMETERS_FOREGROUND.equals(p)) { Color c = getColor(store, PARAMETERS_FOREGROUND); assistant.setContextInformationPopupForeground(c); assistant.setContextSelectorForeground(c); } else if (PARAMETERS_BACKGROUND.equals(p)) { Color c = getColor(store, PARAMETERS_BACKGROUND); assistant.setContextInformationPopupBackground(c); assistant.setContextSelectorBackground(c); } else if (AUTOINSERT.equals(p)) { boolean enabled = store.getBoolean(AUTOINSERT); assistant.enableAutoInsert(enabled); } else if (PREFIX_COMPLETION.equals(p)) { boolean enabled = store.getBoolean(PREFIX_COMPLETION); assistant.enablePrefixCompletion(enabled); } else if (USE_COLORED_LABELS.equals(p)) { boolean enabled = store.getBoolean(USE_COLORED_LABELS); assistant.enableColoredLabels(enabled); } changeJavaProcessor(assistant, store, p); changeJavaDocProcessor(assistant, store, p); } public static boolean fillArgumentsOnMethodCompletion(IPreferenceStore store) { return store.getBoolean(FILL_METHOD_ARGUMENTS); } }