org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorAppearanceConfigurationBlock.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2006 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 org.eclipse.jdt.internal.ui.preferences;

 import java.util.ArrayList;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.graphics.FontMetrics;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.RGB;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Link;
 import org.eclipse.swt.widgets.List;
 import org.eclipse.swt.widgets.Shell;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.preference.ColorSelector;
 import org.eclipse.jface.preference.PreferenceConverter;
 import org.eclipse.jface.preference.PreferencePage;
 import org.eclipse.jface.resource.JFaceResources;

 import org.eclipse.ui.dialogs.PreferencesUtil;

 import org.eclipse.jdt.ui.PreferenceConstants;

 import org.eclipse.jdt.internal.ui.util.PixelConverter;

 /**
  * Configures Java Editor hover preferences.
  *
  * @since 2.1
  */
 class JavaEditorAppearanceConfigurationBlock extends AbstractConfigurationBlock {

 	private final String[][] fAppearanceColorListModel= new String[][] {
 			{PreferencesMessages.JavaEditorPreferencePage_matchingBracketsHighlightColor2, PreferenceConstants.EDITOR_MATCHING_BRACKETS_COLOR, null},
 			{PreferencesMessages.JavaEditorPreferencePage_backgroundForCompletionProposals, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND, null },
 			{PreferencesMessages.JavaEditorPreferencePage_foregroundForCompletionProposals, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND, null },
 			{PreferencesMessages.JavaEditorPreferencePage_backgroundForMethodParameters, PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND, null },
 			{PreferencesMessages.JavaEditorPreferencePage_foregroundForMethodParameters, PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND, null },
 			{PreferencesMessages.JavaEditorPreferencePage_backgroundForCompletionReplacement, PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND, null },
 			{PreferencesMessages.JavaEditorPreferencePage_foregroundForCompletionReplacement, PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND, null },
 		};

 	private List fAppearanceColorList;
 	private ColorSelector fAppearanceColorEditor;
 	private Button fAppearanceColorDefault;

 	private FontMetrics fFontMetrics;

 	public JavaEditorAppearanceConfigurationBlock(PreferencePage mainPreferencePage, OverlayPreferenceStore store) {
 		super(store, mainPreferencePage);
 		getPreferenceStore().addKeys(createOverlayStoreKeys());
 	}


 	private OverlayPreferenceStore.OverlayKey[] createOverlayStoreKeys() {

 		ArrayList overlayKeys= new ArrayList();

 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.EDITOR_MATCHING_BRACKETS_COLOR));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_MATCHING_BRACKETS));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_QUICKASSIST_LIGHTBULB));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SMART_HOME_END));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SUB_WORD_NAVIGATION));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_EVALUTE_TEMPORARY_PROBLEMS));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND));
 		overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND));

 		OverlayPreferenceStore.OverlayKey[] keys= new OverlayPreferenceStore.OverlayKey[overlayKeys.size()];
 		overlayKeys.toArray(keys);
 		return keys;
 	}

 	/**
 	 * Creates page for appearance preferences.
 	 *
 	 * @param parent the parent composite
 	 * @return the control for the preference page
 	 */
 	public Control createControl(Composite parent) {
 		initializeDialogUnits(parent);

 		Composite composite= new Composite(parent, SWT.NONE);
 		composite.setLayout(new GridLayout());

 		createHeader(composite);
 		createAppearancePage(composite);

 		return composite;
 	}

 	private void createHeader(Composite contents) {
 		final Shell shell= contents.getShell();
 		String text= PreferencesMessages.JavaEditorPreferencePage_link;
 		Link link= new Link(contents, SWT.NONE);
 		link.setText(text);
 		link.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				PreferencesUtil.createPreferenceDialogOn(shell, "org.eclipse.ui.preferencePages.GeneralTextEditor", null, null); //$NON-NLS-1$
 			}
 		});
 		// TODO replace by link-specific tooltips when
 		// bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=88866 gets fixed
 		link.setToolTipText(PreferencesMessages.JavaEditorPreferencePage_link_tooltip);


 		GridData gridData= new GridData(SWT.FILL, SWT.BEGINNING, true, false);
 		gridData.widthHint= 150; // only expand further if anyone else requires it
 		link.setLayoutData(gridData);

 		addFiller(contents);
 	}

 	private void addFiller(Composite composite) {
 		PixelConverter pixelConverter= new PixelConverter(composite);

 		Label filler= new Label(composite, SWT.LEFT );
 		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan= 2;
 		gd.heightHint= pixelConverter.convertHeightInCharsToPixels(1) / 2;
 		filler.setLayoutData(gd);
 	}

 	/**
      * Returns the number of pixels corresponding to the width of the given
      * number of characters.
      * <p>
      * This method may only be called after <code>initializeDialogUnits</code>
      * has been called.
      * </p>
      * <p>
      * Clients may call this framework method, but should not override it.
      * </p>
      *
      * @param chars
      *            the number of characters
      * @return the number of pixels
      */
     protected int convertWidthInCharsToPixels(int chars) {
         // test for failure to initialize for backward compatibility
         if (fFontMetrics == null)
             return 0;
         return Dialog.convertWidthInCharsToPixels(fFontMetrics, chars);
     }

 	/**
      * Returns the number of pixels corresponding to the height of the given
      * number of characters.
      * <p>
      * This method may only be called after <code>initializeDialogUnits</code>
      * has been called.
      * </p>
      * <p>
      * Clients may call this framework method, but should not override it.
      * </p>
      *
      * @param chars
      *            the number of characters
      * @return the number of pixels
      */
     protected int convertHeightInCharsToPixels(int chars) {
         // test for failure to initialize for backward compatibility
         if (fFontMetrics == null)
             return 0;
         return Dialog.convertHeightInCharsToPixels(fFontMetrics, chars);
     }

     private Control createAppearancePage(Composite parent) {

 		Composite appearanceComposite= new Composite(parent, SWT.NONE);
 		GridLayout layout= new GridLayout();
 		layout.numColumns= 2;
 		appearanceComposite.setLayout(layout);

 		String label;

 		label= PreferencesMessages.JavaEditorPreferencePage_smartHomeEnd;
 		addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_SMART_HOME_END, 0);

 		label= PreferencesMessages.JavaEditorPreferencePage_subWordNavigation;
 		addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_SUB_WORD_NAVIGATION, 0);

 		label= PreferencesMessages.JavaEditorPreferencePage_analyseAnnotationsWhileTyping;
 		addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_EVALUTE_TEMPORARY_PROBLEMS, 0);

 		String text= PreferencesMessages.SmartTypingConfigurationBlock_annotationReporting_link;
 		addLink(appearanceComposite, text, INDENT);

 		Label spacer= new Label(appearanceComposite, SWT.LEFT );
 		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan= 2;
 		gd.heightHint= convertHeightInCharsToPixels(1) / 2;
 		spacer.setLayoutData(gd);

 		label= PreferencesMessages.JavaEditorPreferencePage_highlightMatchingBrackets;
 		addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_MATCHING_BRACKETS, 0);

 		label= PreferencesMessages.JavaEditorPreferencePage_quickassist_lightbulb;
 		addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_QUICKASSIST_LIGHTBULB, 0);

 		Label l= new Label(appearanceComposite, SWT.LEFT );
 		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan= 2;
 		gd.heightHint= convertHeightInCharsToPixels(1) / 2;
 		l.setLayoutData(gd);

 		l= new Label(appearanceComposite, SWT.LEFT);
 		l.setText(PreferencesMessages.JavaEditorPreferencePage_appearanceOptions);
 		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan= 2;
 		l.setLayoutData(gd);

 		Composite editorComposite= new Composite(appearanceComposite, SWT.NONE);
 		layout= new GridLayout();
 		layout.numColumns= 2;
 		layout.marginHeight= 0;
 		layout.marginWidth= 0;
 		editorComposite.setLayout(layout);
 		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL);
 		gd.horizontalSpan= 2;
 		editorComposite.setLayoutData(gd);

 		fAppearanceColorList= new List(editorComposite, SWT.SINGLE | SWT.V_SCROLL | SWT.BORDER);
 		gd= new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL);
 		gd.heightHint= convertHeightInCharsToPixels(12);
 		fAppearanceColorList.setLayoutData(gd);

 		Composite stylesComposite= new Composite(editorComposite, SWT.NONE);
 		layout= new GridLayout();
 		layout.marginHeight= 0;
 		layout.marginWidth= 0;
 		layout.numColumns= 2;
 		stylesComposite.setLayout(layout);
 		stylesComposite.setLayoutData(new GridData(GridData.FILL_BOTH));

 		l= new Label(stylesComposite, SWT.LEFT);
 		l.setText(PreferencesMessages.JavaEditorPreferencePage_color);
 		gd= new GridData();
 		gd.horizontalAlignment= GridData.BEGINNING;
 		l.setLayoutData(gd);

 		fAppearanceColorEditor= new ColorSelector(stylesComposite);
 		Button foregroundColorButton= fAppearanceColorEditor.getButton();
 		gd= new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalAlignment= GridData.BEGINNING;
 		foregroundColorButton.setLayoutData(gd);

 		SelectionListener colorDefaultSelectionListener= new SelectionListener() {
 			public void widgetSelected(SelectionEvent e) {
 				boolean systemDefault= fAppearanceColorDefault.getSelection();
 				fAppearanceColorEditor.getButton().setEnabled(!systemDefault);

 				int i= fAppearanceColorList.getSelectionIndex();
 				if (i == -1)
 					return;

 				String key= fAppearanceColorListModel[i][2];
 				if (key != null)
 					getPreferenceStore().setValue(key, systemDefault);
 			}
 			public void widgetDefaultSelected(SelectionEvent e) {}
 		};

 		fAppearanceColorDefault= new Button(stylesComposite, SWT.CHECK);
 		fAppearanceColorDefault.setText(PreferencesMessages.JavaEditorPreferencePage_systemDefault);
 		gd= new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalAlignment= GridData.BEGINNING;
 		gd.horizontalSpan= 2;
 		fAppearanceColorDefault.setLayoutData(gd);
 		fAppearanceColorDefault.setVisible(false);
 		fAppearanceColorDefault.addSelectionListener(colorDefaultSelectionListener);

 		fAppearanceColorList.addSelectionListener(new SelectionListener() {
 			public void widgetDefaultSelected(SelectionEvent e) {
 				// do nothing
 			}
 			public void widgetSelected(SelectionEvent e) {
 				handleAppearanceColorListSelection();
 			}
 		});
 		foregroundColorButton.addSelectionListener(new SelectionListener() {
 			public void widgetDefaultSelected(SelectionEvent e) {
 				// do nothing
 			}
 			public void widgetSelected(SelectionEvent e) {
 				int i= fAppearanceColorList.getSelectionIndex();
 				if (i == -1)
 					return;

 				String key= fAppearanceColorListModel[i][1];
 				PreferenceConverter.setValue(getPreferenceStore(), key, fAppearanceColorEditor.getColorValue());
 			}
 		});
 		return appearanceComposite;
 	}


 	private void addLink(Composite composite, String text, int indent) {
 		GridData gd;
 		final Link link= new Link(composite, SWT.NONE);
 		link.setText(text);
 		gd= new GridData(SWT.FILL, SWT.BEGINNING, true, false);
 		gd.widthHint= 300; // don't get wider initially
 		gd.horizontalSpan= 2;
 		gd.horizontalIndent= indent;
 		link.setLayoutData(gd);
 		link.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				PreferencesUtil.createPreferenceDialogOn(link.getShell(), e.text, null, null);
 			}
 		});
 	}

     private void handleAppearanceColorListSelection() {
 		int i= fAppearanceColorList.getSelectionIndex();
 		if (i == -1)
 			return;
 		String key= fAppearanceColorListModel[i][1];
 		RGB rgb= PreferenceConverter.getColor(getPreferenceStore(), key);
 		fAppearanceColorEditor.setColorValue(rgb);
 		updateAppearanceColorWidgets(fAppearanceColorListModel[i][2]);
 	}

 	private void updateAppearanceColorWidgets(String systemDefaultKey) {
 		if (systemDefaultKey == null) {
 			fAppearanceColorDefault.setSelection(false);
 			fAppearanceColorDefault.setVisible(false);
 			fAppearanceColorEditor.getButton().setEnabled(true);
 		} else {
 			boolean systemDefault= getPreferenceStore().getBoolean(systemDefaultKey);
 			fAppearanceColorDefault.setSelection(systemDefault);
 			fAppearanceColorDefault.setVisible(true);
 			fAppearanceColorEditor.getButton().setEnabled(!systemDefault);
 		}
 	}

 	/*
 	 * @see org.eclipse.jdt.internal.ui.preferences.IPreferenceConfigurationBlock#initialize()
 	 */
 	public void initialize() {

 		super.initialize();

 		for (int i= 0; i < fAppearanceColorListModel.length; i++)
 			fAppearanceColorList.add(fAppearanceColorListModel[i][0]);

 		fAppearanceColorList.getDisplay().asyncExec(new Runnable() {
 			public void run() {
 				if (fAppearanceColorList != null && !fAppearanceColorList.isDisposed()) {
 					fAppearanceColorList.select(0);
 					handleAppearanceColorListSelection();
 				}
 			}
 		});

 	}

 	/*
 	 * @see org.eclipse.jdt.internal.ui.preferences.IPreferenceConfigurationBlock#performDefaults()
 	 */
 	public void performDefaults() {
 		super.performDefaults();
 		handleAppearanceColorListSelection();
 	}

 	/**
      * Initializes the computation of horizontal and vertical dialog units based
      * on the size of current font.
      * <p>
      * This method must be called before any of the dialog unit based conversion
      * methods are called.
      * </p>
      *
      * @param testControl
      *            a control from which to obtain the current font
      */
     protected void initializeDialogUnits(Control testControl) {
         // Compute and store a font metric
         GC gc = new GC(testControl);
         gc.setFont(JFaceResources.getDialogFont());
         fFontMetrics = gc.getFontMetrics();
         gc.dispose();
     }

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2006 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 org.eclipse.jdt.internal.ui.preferences;

	import java.util.ArrayList;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.graphics.FontMetrics;
	import org.eclipse.swt.graphics.GC;
	import org.eclipse.swt.graphics.RGB;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Link;
	import org.eclipse.swt.widgets.List;
	import org.eclipse.swt.widgets.Shell;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.preference.ColorSelector;
	import org.eclipse.jface.preference.PreferenceConverter;
	import org.eclipse.jface.preference.PreferencePage;
	import org.eclipse.jface.resource.JFaceResources;

	import org.eclipse.ui.dialogs.PreferencesUtil;

	import org.eclipse.jdt.ui.PreferenceConstants;

	import org.eclipse.jdt.internal.ui.util.PixelConverter;

	/**
	* Configures Java Editor hover preferences.
	*
	* @since 2.1
	*/
	class JavaEditorAppearanceConfigurationBlock extends AbstractConfigurationBlock {

	private final String[][] fAppearanceColorListModel= new String[][] {
	{PreferencesMessages.JavaEditorPreferencePage_matchingBracketsHighlightColor2, PreferenceConstants.EDITOR_MATCHING_BRACKETS_COLOR, null},
	{PreferencesMessages.JavaEditorPreferencePage_backgroundForCompletionProposals, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND, null },
	{PreferencesMessages.JavaEditorPreferencePage_foregroundForCompletionProposals, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND, null },
	{PreferencesMessages.JavaEditorPreferencePage_backgroundForMethodParameters, PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND, null },
	{PreferencesMessages.JavaEditorPreferencePage_foregroundForMethodParameters, PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND, null },
	{PreferencesMessages.JavaEditorPreferencePage_backgroundForCompletionReplacement, PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND, null },
	{PreferencesMessages.JavaEditorPreferencePage_foregroundForCompletionReplacement, PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND, null },
	};

	private List fAppearanceColorList;
	private ColorSelector fAppearanceColorEditor;
	private Button fAppearanceColorDefault;

	private FontMetrics fFontMetrics;

	public JavaEditorAppearanceConfigurationBlock(PreferencePage mainPreferencePage, OverlayPreferenceStore store) {
	super(store, mainPreferencePage);
	getPreferenceStore().addKeys(createOverlayStoreKeys());
	}


	private OverlayPreferenceStore.OverlayKey[] createOverlayStoreKeys() {

	ArrayList overlayKeys= new ArrayList();

	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.EDITOR_MATCHING_BRACKETS_COLOR));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_MATCHING_BRACKETS));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_QUICKASSIST_LIGHTBULB));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SMART_HOME_END));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_SUB_WORD_NAVIGATION));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.EDITOR_EVALUTE_TEMPORARY_PROBLEMS));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND));
	overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND));

	OverlayPreferenceStore.OverlayKey[] keys= new OverlayPreferenceStore.OverlayKey[overlayKeys.size()];
	overlayKeys.toArray(keys);
	return keys;
	}

	/**
	* Creates page for appearance preferences.
	*
	* @param parent the parent composite
	* @return the control for the preference page
	*/
	public Control createControl(Composite parent) {
	initializeDialogUnits(parent);

	Composite composite= new Composite(parent, SWT.NONE);
	composite.setLayout(new GridLayout());

	createHeader(composite);
	createAppearancePage(composite);

	return composite;
	}

	private void createHeader(Composite contents) {
	final Shell shell= contents.getShell();
	String text= PreferencesMessages.JavaEditorPreferencePage_link;
	Link link= new Link(contents, SWT.NONE);
	link.setText(text);
	link.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	PreferencesUtil.createPreferenceDialogOn(shell, "org.eclipse.ui.preferencePages.GeneralTextEditor", null, null); //$NON-NLS-1$
	}
	});
	// TODO replace by link-specific tooltips when
	// bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=88866 gets fixed
	link.setToolTipText(PreferencesMessages.JavaEditorPreferencePage_link_tooltip);


	GridData gridData= new GridData(SWT.FILL, SWT.BEGINNING, true, false);
	gridData.widthHint= 150; // only expand further if anyone else requires it
	link.setLayoutData(gridData);

	addFiller(contents);
	}

	private void addFiller(Composite composite) {
	PixelConverter pixelConverter= new PixelConverter(composite);

	Label filler= new Label(composite, SWT.LEFT );
	GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan= 2;
	gd.heightHint= pixelConverter.convertHeightInCharsToPixels(1) / 2;
	filler.setLayoutData(gd);
	}

	/**
	* Returns the number of pixels corresponding to the width of the given
	* number of characters.
	* <p>
	* This method may only be called after <code>initializeDialogUnits</code>
	* has been called.
	* </p>
	* <p>
	* Clients may call this framework method, but should not override it.
	* </p>
	*
	* @param chars
	* the number of characters
	* @return the number of pixels
	*/
	protected int convertWidthInCharsToPixels(int chars) {
	// test for failure to initialize for backward compatibility
	if (fFontMetrics == null)
	return 0;
	return Dialog.convertWidthInCharsToPixels(fFontMetrics, chars);
	}

	/**
	* Returns the number of pixels corresponding to the height of the given
	* number of characters.
	* <p>
	* This method may only be called after <code>initializeDialogUnits</code>
	* has been called.
	* </p>
	* <p>
	* Clients may call this framework method, but should not override it.
	* </p>
	*
	* @param chars
	* the number of characters
	* @return the number of pixels
	*/
	protected int convertHeightInCharsToPixels(int chars) {
	// test for failure to initialize for backward compatibility
	if (fFontMetrics == null)
	return 0;
	return Dialog.convertHeightInCharsToPixels(fFontMetrics, chars);
	}

	private Control createAppearancePage(Composite parent) {

	Composite appearanceComposite= new Composite(parent, SWT.NONE);
	GridLayout layout= new GridLayout();
	layout.numColumns= 2;
	appearanceComposite.setLayout(layout);

	String label;

	label= PreferencesMessages.JavaEditorPreferencePage_smartHomeEnd;
	addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_SMART_HOME_END, 0);

	label= PreferencesMessages.JavaEditorPreferencePage_subWordNavigation;
	addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_SUB_WORD_NAVIGATION, 0);

	label= PreferencesMessages.JavaEditorPreferencePage_analyseAnnotationsWhileTyping;
	addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_EVALUTE_TEMPORARY_PROBLEMS, 0);

	String text= PreferencesMessages.SmartTypingConfigurationBlock_annotationReporting_link;
	addLink(appearanceComposite, text, INDENT);

	Label spacer= new Label(appearanceComposite, SWT.LEFT );
	GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan= 2;
	gd.heightHint= convertHeightInCharsToPixels(1) / 2;
	spacer.setLayoutData(gd);

	label= PreferencesMessages.JavaEditorPreferencePage_highlightMatchingBrackets;
	addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_MATCHING_BRACKETS, 0);

	label= PreferencesMessages.JavaEditorPreferencePage_quickassist_lightbulb;
	addCheckBox(appearanceComposite, label, PreferenceConstants.EDITOR_QUICKASSIST_LIGHTBULB, 0);

	Label l= new Label(appearanceComposite, SWT.LEFT );
	gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan= 2;
	gd.heightHint= convertHeightInCharsToPixels(1) / 2;
	l.setLayoutData(gd);

	l= new Label(appearanceComposite, SWT.LEFT);
	l.setText(PreferencesMessages.JavaEditorPreferencePage_appearanceOptions);
	gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan= 2;
	l.setLayoutData(gd);

	Composite editorComposite= new Composite(appearanceComposite, SWT.NONE);
	layout= new GridLayout();
	layout.numColumns= 2;
	layout.marginHeight= 0;
	layout.marginWidth= 0;
	editorComposite.setLayout(layout);
	gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL \| GridData.FILL_VERTICAL);
	gd.horizontalSpan= 2;
	editorComposite.setLayoutData(gd);

	fAppearanceColorList= new List(editorComposite, SWT.SINGLE \| SWT.V_SCROLL \| SWT.BORDER);
	gd= new GridData(GridData.VERTICAL_ALIGN_BEGINNING \| GridData.FILL_HORIZONTAL);
	gd.heightHint= convertHeightInCharsToPixels(12);
	fAppearanceColorList.setLayoutData(gd);

	Composite stylesComposite= new Composite(editorComposite, SWT.NONE);
	layout= new GridLayout();
	layout.marginHeight= 0;
	layout.marginWidth= 0;
	layout.numColumns= 2;
	stylesComposite.setLayout(layout);
	stylesComposite.setLayoutData(new GridData(GridData.FILL_BOTH));

	l= new Label(stylesComposite, SWT.LEFT);
	l.setText(PreferencesMessages.JavaEditorPreferencePage_color);
	gd= new GridData();
	gd.horizontalAlignment= GridData.BEGINNING;
	l.setLayoutData(gd);

	fAppearanceColorEditor= new ColorSelector(stylesComposite);
	Button foregroundColorButton= fAppearanceColorEditor.getButton();
	gd= new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalAlignment= GridData.BEGINNING;
	foregroundColorButton.setLayoutData(gd);

	SelectionListener colorDefaultSelectionListener= new SelectionListener() {
	public void widgetSelected(SelectionEvent e) {
	boolean systemDefault= fAppearanceColorDefault.getSelection();
	fAppearanceColorEditor.getButton().setEnabled(!systemDefault);

	int i= fAppearanceColorList.getSelectionIndex();
	if (i == -1)
	return;

	String key= fAppearanceColorListModel[i][2];
	if (key != null)
	getPreferenceStore().setValue(key, systemDefault);
	}
	public void widgetDefaultSelected(SelectionEvent e) {}
	};

	fAppearanceColorDefault= new Button(stylesComposite, SWT.CHECK);
	fAppearanceColorDefault.setText(PreferencesMessages.JavaEditorPreferencePage_systemDefault);
	gd= new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalAlignment= GridData.BEGINNING;
	gd.horizontalSpan= 2;
	fAppearanceColorDefault.setLayoutData(gd);
	fAppearanceColorDefault.setVisible(false);
	fAppearanceColorDefault.addSelectionListener(colorDefaultSelectionListener);

	fAppearanceColorList.addSelectionListener(new SelectionListener() {
	public void widgetDefaultSelected(SelectionEvent e) {
	// do nothing
	}
	public void widgetSelected(SelectionEvent e) {
	handleAppearanceColorListSelection();
	}
	});
	foregroundColorButton.addSelectionListener(new SelectionListener() {
	public void widgetDefaultSelected(SelectionEvent e) {
	// do nothing
	}
	public void widgetSelected(SelectionEvent e) {
	int i= fAppearanceColorList.getSelectionIndex();
	if (i == -1)
	return;

	String key= fAppearanceColorListModel[i][1];
	PreferenceConverter.setValue(getPreferenceStore(), key, fAppearanceColorEditor.getColorValue());
	}
	});
	return appearanceComposite;
	}


	private void addLink(Composite composite, String text, int indent) {
	GridData gd;
	final Link link= new Link(composite, SWT.NONE);
	link.setText(text);
	gd= new GridData(SWT.FILL, SWT.BEGINNING, true, false);
	gd.widthHint= 300; // don't get wider initially
	gd.horizontalSpan= 2;
	gd.horizontalIndent= indent;
	link.setLayoutData(gd);
	link.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	PreferencesUtil.createPreferenceDialogOn(link.getShell(), e.text, null, null);
	}
	});
	}

	private void handleAppearanceColorListSelection() {
	int i= fAppearanceColorList.getSelectionIndex();
	if (i == -1)
	return;
	String key= fAppearanceColorListModel[i][1];
	RGB rgb= PreferenceConverter.getColor(getPreferenceStore(), key);
	fAppearanceColorEditor.setColorValue(rgb);
	updateAppearanceColorWidgets(fAppearanceColorListModel[i][2]);
	}

	private void updateAppearanceColorWidgets(String systemDefaultKey) {
	if (systemDefaultKey == null) {
	fAppearanceColorDefault.setSelection(false);
	fAppearanceColorDefault.setVisible(false);
	fAppearanceColorEditor.getButton().setEnabled(true);
	} else {
	boolean systemDefault= getPreferenceStore().getBoolean(systemDefaultKey);
	fAppearanceColorDefault.setSelection(systemDefault);
	fAppearanceColorDefault.setVisible(true);
	fAppearanceColorEditor.getButton().setEnabled(!systemDefault);
	}
	}

	/*
	* @see org.eclipse.jdt.internal.ui.preferences.IPreferenceConfigurationBlock#initialize()
	*/
	public void initialize() {

	super.initialize();

	for (int i= 0; i < fAppearanceColorListModel.length; i++)
	fAppearanceColorList.add(fAppearanceColorListModel[i][0]);

	fAppearanceColorList.getDisplay().asyncExec(new Runnable() {
	public void run() {
	if (fAppearanceColorList != null && !fAppearanceColorList.isDisposed()) {
	fAppearanceColorList.select(0);
	handleAppearanceColorListSelection();
	}
	}
	});

	}

	/*
	* @see org.eclipse.jdt.internal.ui.preferences.IPreferenceConfigurationBlock#performDefaults()
	*/
	public void performDefaults() {
	super.performDefaults();
	handleAppearanceColorListSelection();
	}

	/**
	* Initializes the computation of horizontal and vertical dialog units based
	* on the size of current font.
	* <p>
	* This method must be called before any of the dialog unit based conversion
	* methods are called.
	* </p>
	*
	* @param testControl
	* a control from which to obtain the current font
	*/
	protected void initializeDialogUnits(Control testControl) {
	// Compute and store a font metric
	GC gc = new GC(testControl);
	gc.setFont(JFaceResources.getDialogFont());
	fFontMetrics = gc.getFontMetrics();
	gc.dispose();
	}

	}