/*******************************************************************************
* Copyright (c) 2000, 2014 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
* Andre Soereng <andreis@fast.no> - [syntax highlighting] highlight numbers - https://bugs.eclipse.org/bugs/show_bug.cgi?id=63573
* Björn Michael <b.michael@gmx.de> - [syntax highlighting] Syntax coloring for abstract classes - https://bugs.eclipse.org/331311
* Björn Michael <b.michael@gmx.de> - [syntax highlighting] Add highlight for inherited fields - https://bugs.eclipse.org/348368
*******************************************************************************/
package org.eclipse.jdt.internal.ui.preferences;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Iterator;
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.Cursor;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
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.ScrollBar;
import org.eclipse.swt.widgets.Scrollable;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.layout.PixelConverter;
import org.eclipse.jface.preference.ColorSelector;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceConverter;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.texteditor.ChainedPreferenceStore;
import org.eclipse.ui.editors.text.EditorsUI;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jdt.ui.text.IColorManager;
import org.eclipse.jdt.ui.text.IJavaPartitions;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer;
import org.eclipse.jdt.internal.ui.javaeditor.SemanticHighlighting;
import org.eclipse.jdt.internal.ui.javaeditor.SemanticHighlightingManager;
import org.eclipse.jdt.internal.ui.javaeditor.SemanticHighlightingManager.HighlightedRange;
import org.eclipse.jdt.internal.ui.javaeditor.SemanticHighlightings;
import org.eclipse.jdt.internal.ui.preferences.OverlayPreferenceStore.OverlayKey;
import org.eclipse.jdt.internal.ui.text.JavaColorManager;
import org.eclipse.jdt.internal.ui.text.PreferencesAdapter;
import org.eclipse.jdt.internal.ui.text.SimpleJavaSourceViewerConfiguration;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
/**
* Configures Java Editor hover preferences.
*
* @since 2.1
*/
class JavaEditorColoringConfigurationBlock extends AbstractConfigurationBlock {
/**
* Item in the highlighting color list.
*
* @since 3.0
*/
private static class HighlightingColorListItem {
/** Display name */
private String fDisplayName;
/** Color preference key */
private String fColorKey;
/** Bold preference key */
private String fBoldKey;
/** Italic preference key */
private String fItalicKey;
/**
* Strikethrough preference key.
* @since 3.1
*/
private String fStrikethroughKey;
/** Underline preference key.
* @since 3.1
*/
private String fUnderlineKey;
/**
* Initialize the item with the given values.
* @param displayName the display name
* @param colorKey the color preference key
* @param boldKey the bold preference key
* @param italicKey the italic preference key
* @param strikethroughKey the strikethrough preference key
* @param underlineKey the underline preference key
*/
public HighlightingColorListItem(String displayName, String colorKey, String boldKey, String italicKey, String strikethroughKey, String underlineKey) {
fDisplayName= displayName;
fColorKey= colorKey;
fBoldKey= boldKey;
fItalicKey= italicKey;
fStrikethroughKey= strikethroughKey;
fUnderlineKey= underlineKey;
}
/**
* @return the bold preference key
*/
public String getBoldKey() {
return fBoldKey;
}
/**
* @return the bold preference key
*/
public String getItalicKey() {
return fItalicKey;
}
/**
* @return the strikethrough preference key
* @since 3.1
*/
public String getStrikethroughKey() {
return fStrikethroughKey;
}
/**
* @return the underline preference key
* @since 3.1
*/
public String getUnderlineKey() {
return fUnderlineKey;
}
/**
* @return the color preference key
*/
public String getColorKey() {
return fColorKey;
}
/**
* @return the display name
*/
public String getDisplayName() {
return fDisplayName;
}
}
private static class SemanticHighlightingColorListItem extends HighlightingColorListItem {
/** Enablement preference key */
private final String fEnableKey;
/**
* Initialize the item with the given values.
* @param displayName the display name
* @param colorKey the color preference key
* @param boldKey the bold preference key
* @param italicKey the italic preference key
* @param strikethroughKey the strikethroughKey preference key
* @param underlineKey the underlineKey preference key
* @param enableKey the enable preference key
*/
public SemanticHighlightingColorListItem(String displayName, String colorKey, String boldKey, String italicKey, String strikethroughKey, String underlineKey, String enableKey) {
super(displayName, colorKey, boldKey, italicKey, strikethroughKey, underlineKey);
fEnableKey= enableKey;
}
/**
* @return the enablement preference key
*/
public String getEnableKey() {
return fEnableKey;
}
}
/**
* Color list label provider.
*
* @since 3.0
*/
private class ColorListLabelProvider extends LabelProvider {
/*
* @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
*/
@Override
public String getText(Object element) {
if (element instanceof String)
return (String) element;
return ((HighlightingColorListItem)element).getDisplayName();
}
}
/**
* Color list content provider.
*
* @since 3.0
*/
private class ColorListContentProvider implements ITreeContentProvider {
/*
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
public Object[] getElements(Object inputElement) {
return new String[] {fJavaCategory, fJavadocCategory, fCommentsCategory};
}
/*
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose() {
}
/*
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof String) {
String entry= (String) parentElement;
if (fJavaCategory.equals(entry))
return fListModel.subList(7, fListModel.size()).toArray();
if (fJavadocCategory.equals(entry))
return fListModel.subList(0, 4).toArray();
if (fCommentsCategory.equals(entry))
return fListModel.subList(4, 7).toArray();
}
return new Object[0];
}
public Object getParent(Object element) {
if (element instanceof String)
return null;
int index= fListModel.indexOf(element);
if (index < 4)
return fJavadocCategory;
if (index >= 7)
return fJavaCategory;
return fCommentsCategory;
}
public boolean hasChildren(Object element) {
return element instanceof String;
}
}
private static final String BOLD= PreferenceConstants.EDITOR_BOLD_SUFFIX;
/**
* Preference key suffix for italic preferences.
* @since 3.0
*/
private static final String ITALIC= PreferenceConstants.EDITOR_ITALIC_SUFFIX;
/**
* Preference key suffix for strikethrough preferences.
* @since 3.1
*/
private static final String STRIKETHROUGH= PreferenceConstants.EDITOR_STRIKETHROUGH_SUFFIX;
/**
* Preference key suffix for underline preferences.
* @since 3.1
*/
private static final String UNDERLINE= PreferenceConstants.EDITOR_UNDERLINE_SUFFIX;
private static final String COMPILER_TASK_TAGS= JavaCore.COMPILER_TASK_TAGS;
/**
* The keys of the overlay store.
*/
private final String[][] fSyntaxColorListModel= new String[][] {
{ PreferencesMessages.JavaEditorPreferencePage_javaDocKeywords, PreferenceConstants.EDITOR_JAVADOC_KEYWORD_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_javaDocHtmlTags, PreferenceConstants.EDITOR_JAVADOC_TAG_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_javaDocLinks, PreferenceConstants.EDITOR_JAVADOC_LINKS_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_javaDocOthers, PreferenceConstants.EDITOR_JAVADOC_DEFAULT_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_multiLineComment, PreferenceConstants.EDITOR_MULTI_LINE_COMMENT_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_singleLineComment, PreferenceConstants.EDITOR_SINGLE_LINE_COMMENT_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_javaCommentTaskTags, PreferenceConstants.EDITOR_TASK_TAG_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_keywords, PreferenceConstants.EDITOR_JAVA_KEYWORD_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_returnKeyword, PreferenceConstants.EDITOR_JAVA_KEYWORD_RETURN_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_operators, PreferenceConstants.EDITOR_JAVA_OPERATOR_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_brackets, PreferenceConstants.EDITOR_JAVA_BRACKET_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_strings, PreferenceConstants.EDITOR_STRING_COLOR },
{ PreferencesMessages.JavaEditorPreferencePage_others, PreferenceConstants.EDITOR_JAVA_DEFAULT_COLOR },
};
private final String fJavaCategory= PreferencesMessages.JavaEditorPreferencePage_coloring_category_java;
private final String fJavadocCategory= PreferencesMessages.JavaEditorPreferencePage_coloring_category_javadoc;
private final String fCommentsCategory= PreferencesMessages.JavaEditorPreferencePage_coloring_category_comments;
private ColorSelector fSyntaxForegroundColorEditor;
private Label fColorEditorLabel;
private Button fBoldCheckBox;
private Button fEnableCheckbox;
/**
* Check box for italic preference.
* @since 3.0
*/
private Button fItalicCheckBox;
/**
* Check box for strikethrough preference.
* @since 3.1
*/
private Button fStrikethroughCheckBox;
/**
* Check box for underline preference.
* @since 3.1
*/
private Button fUnderlineCheckBox;
/**
* Highlighting color list
* @since 3.0
*/
private final java.util.List<HighlightingColorListItem> fListModel= new ArrayList<HighlightingColorListItem>();
/**
* Highlighting color tree viewer
* @since 3.0
*/
private TreeViewer fTreeViewer;
/**
* Semantic highlighting manager
* @since 3.0
*/
private SemanticHighlightingManager fSemanticHighlightingManager;
/**
* The previewer.
* @since 3.0
*/
private JavaSourceViewer fPreviewViewer;
/**
* The color manager.
* @since 3.1
*/
private IColorManager fColorManager;
/**
* The font metrics.
* @since 3.1
*/
private FontMetrics fFontMetrics;
public JavaEditorColoringConfigurationBlock(OverlayPreferenceStore store) {
super(store);
fColorManager= new JavaColorManager(false);
for (int i= 0, n= fSyntaxColorListModel.length; i < n; i++)
fListModel.add(new HighlightingColorListItem (fSyntaxColorListModel[i][0], fSyntaxColorListModel[i][1], fSyntaxColorListModel[i][1] + BOLD, fSyntaxColorListModel[i][1] + ITALIC, fSyntaxColorListModel[i][1] + STRIKETHROUGH, fSyntaxColorListModel[i][1] + UNDERLINE));
SemanticHighlighting[] semanticHighlightings= SemanticHighlightings.getSemanticHighlightings();
for (int i= 0, n= semanticHighlightings.length; i < n; i++)
fListModel.add(
new SemanticHighlightingColorListItem(
semanticHighlightings[i].getDisplayName(),
SemanticHighlightings.getColorPreferenceKey(semanticHighlightings[i]),
SemanticHighlightings.getBoldPreferenceKey(semanticHighlightings[i]),
SemanticHighlightings.getItalicPreferenceKey(semanticHighlightings[i]),
SemanticHighlightings.getStrikethroughPreferenceKey(semanticHighlightings[i]),
SemanticHighlightings.getUnderlinePreferenceKey(semanticHighlightings[i]),
SemanticHighlightings.getEnabledPreferenceKey(semanticHighlightings[i])
));
store.addKeys(createOverlayStoreKeys());
}
private OverlayPreferenceStore.OverlayKey[] createOverlayStoreKeys() {
ArrayList<OverlayKey> overlayKeys= new ArrayList<OverlayKey>();
for (int i= 0, n= fListModel.size(); i < n; i++) {
HighlightingColorListItem item= fListModel.get(i);
overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, item.getColorKey()));
overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, item.getBoldKey()));
overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, item.getItalicKey()));
overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, item.getStrikethroughKey()));
overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, item.getUnderlineKey()));
if (item instanceof SemanticHighlightingColorListItem)
overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ((SemanticHighlightingColorListItem) item).getEnableKey()));
}
OverlayPreferenceStore.OverlayKey[] keys= new OverlayPreferenceStore.OverlayKey[overlayKeys.size()];
overlayKeys.toArray(keys);
return keys;
}
/**
* Creates page for hover preferences.
*
* @param parent the parent composite
* @return the control for the preference page
*/
public Control createControl(Composite parent) {
initializeDialogUnits(parent);
ScrolledPageContent scrolled= new ScrolledPageContent(parent, SWT.H_SCROLL | SWT.V_SCROLL);
scrolled.setExpandHorizontal(true);
scrolled.setExpandVertical(true);
Control control= createSyntaxPage(scrolled);
scrolled.setContent(control);
final Point size= control.computeSize(SWT.DEFAULT, SWT.DEFAULT);
scrolled.setMinSize(size.x, size.y);
return scrolled;
}
/**
* 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
*/
private 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
*/
private int convertHeightInCharsToPixels(int chars) {
// test for failure to initialize for backward compatibility
if (fFontMetrics == null)
return 0;
return Dialog.convertHeightInCharsToPixels(fFontMetrics, chars);
}
@Override
public void initialize() {
super.initialize();
fTreeViewer.setInput(fListModel);
fTreeViewer.setSelection(new StructuredSelection(fJavaCategory));
}
@Override
public void performDefaults() {
super.performDefaults();
handleSyntaxColorListSelection();
uninstallSemanticHighlighting();
installSemanticHighlighting();
fPreviewViewer.invalidateTextPresentation();
}
/*
* @see org.eclipse.jdt.internal.ui.preferences.IPreferenceConfigurationBlock#dispose()
*/
@Override
public void dispose() {
uninstallSemanticHighlighting();
fColorManager.dispose();
super.dispose();
}
private void handleSyntaxColorListSelection() {
HighlightingColorListItem item= getHighlightingColorListItem();
if (item == null) {
fEnableCheckbox.setEnabled(false);
fSyntaxForegroundColorEditor.getButton().setEnabled(false);
fColorEditorLabel.setEnabled(false);
fBoldCheckBox.setEnabled(false);
fItalicCheckBox.setEnabled(false);
fStrikethroughCheckBox.setEnabled(false);
fUnderlineCheckBox.setEnabled(false);
return;
}
RGB rgb= PreferenceConverter.getColor(getPreferenceStore(), item.getColorKey());
fSyntaxForegroundColorEditor.setColorValue(rgb);
fBoldCheckBox.setSelection(getPreferenceStore().getBoolean(item.getBoldKey()));
fItalicCheckBox.setSelection(getPreferenceStore().getBoolean(item.getItalicKey()));
fStrikethroughCheckBox.setSelection(getPreferenceStore().getBoolean(item.getStrikethroughKey()));
fUnderlineCheckBox.setSelection(getPreferenceStore().getBoolean(item.getUnderlineKey()));
if (item instanceof SemanticHighlightingColorListItem) {
fEnableCheckbox.setEnabled(true);
boolean enable= getPreferenceStore().getBoolean(((SemanticHighlightingColorListItem) item).getEnableKey());
fEnableCheckbox.setSelection(enable);
fSyntaxForegroundColorEditor.getButton().setEnabled(enable);
fColorEditorLabel.setEnabled(enable);
fBoldCheckBox.setEnabled(enable);
fItalicCheckBox.setEnabled(enable);
fStrikethroughCheckBox.setEnabled(enable);
fUnderlineCheckBox.setEnabled(enable);
} else {
fSyntaxForegroundColorEditor.getButton().setEnabled(true);
fColorEditorLabel.setEnabled(true);
fBoldCheckBox.setEnabled(true);
fItalicCheckBox.setEnabled(true);
fStrikethroughCheckBox.setEnabled(true);
fUnderlineCheckBox.setEnabled(true);
fEnableCheckbox.setEnabled(false);
fEnableCheckbox.setSelection(true);
}
}
private Control createSyntaxPage(final Composite parent) {
Composite colorComposite= new Composite(parent, SWT.NONE);
GridLayout layout= new GridLayout();
layout.marginHeight= 0;
layout.marginWidth= 0;
colorComposite.setLayout(layout);
Link link= new Link(colorComposite, SWT.NONE);
link.setText(PreferencesMessages.JavaEditorColoringConfigurationBlock_link);
link.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
if ("org.eclipse.ui.preferencePages.GeneralTextEditor".equals(e.text)) //$NON-NLS-1$
PreferencesUtil.createPreferenceDialogOn(parent.getShell(), e.text, null, null);
else if ("org.eclipse.ui.preferencePages.ColorsAndFonts".equals(e.text)) //$NON-NLS-1$
PreferencesUtil.createPreferenceDialogOn(parent.getShell(), e.text, null, "selectFont:org.eclipse.jdt.ui.editors.textfont"); //$NON-NLS-1$
}
});
GridData gridData= new GridData(SWT.FILL, SWT.BEGINNING, true, false);
gridData.widthHint= 150; // only expand further if anyone else requires it
gridData.horizontalSpan= 2;
link.setLayoutData(gridData);
addFiller(colorComposite, 1);
Label label;
label= new Label(colorComposite, SWT.LEFT);
label.setText(PreferencesMessages.JavaEditorPreferencePage_coloring_element);
label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
Composite editorComposite= new Composite(colorComposite, SWT.NONE);
layout= new GridLayout();
layout.numColumns= 2;
layout.marginHeight= 0;
layout.marginWidth= 0;
editorComposite.setLayout(layout);
GridData gd= new GridData(SWT.FILL, SWT.FILL, true, true);
gd.heightHint= convertHeightInCharsToPixels(7);
editorComposite.setLayoutData(gd);
fTreeViewer= new TreeViewer(editorComposite, SWT.SINGLE | SWT.BORDER);
fTreeViewer.setLabelProvider(new ColorListLabelProvider());
fTreeViewer.setContentProvider(new ColorListContentProvider());
fTreeViewer.setComparator(new ViewerComparator() {
@Override
public int category(Object element) {
// don't sort the top level categories
if (fJavaCategory.equals(element))
return 0;
if (fJavadocCategory.equals(element))
return 1;
if (fCommentsCategory.equals(element))
return 2;
// to sort semantic settings after partition based ones:
// if (element instanceof SemanticHighlightingColorListItem)
// return 1;
return 0;
}
});
gd= new GridData(SWT.BEGINNING, SWT.FILL, false, true);
gd.heightHint= convertHeightInCharsToPixels(7);
int maxWidth= 0;
for (Iterator<HighlightingColorListItem> it= fListModel.iterator(); it.hasNext();) {
HighlightingColorListItem item= it.next();
maxWidth= Math.max(maxWidth, convertWidthInCharsToPixels(item.getDisplayName().length()));
}
ScrollBar vBar= ((Scrollable) fTreeViewer.getControl()).getVerticalBar();
if (vBar != null)
maxWidth += vBar.getSize().x * 3; // scrollbars and tree indentation guess
gd.widthHint= maxWidth;
fTreeViewer.getControl().setLayoutData(gd);
installDoubleClickListener();
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(SWT.BEGINNING, SWT.BEGINNING, true, false));
fEnableCheckbox= new Button(stylesComposite, SWT.CHECK);
fEnableCheckbox.setText(PreferencesMessages.JavaEditorPreferencePage_enable);
gd= new GridData(GridData.FILL_HORIZONTAL);
gd.horizontalAlignment= GridData.BEGINNING;
gd.horizontalSpan= 2;
fEnableCheckbox.setLayoutData(gd);
fColorEditorLabel= new Label(stylesComposite, SWT.LEFT);
fColorEditorLabel.setText(PreferencesMessages.JavaEditorPreferencePage_color);
gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
gd.horizontalIndent= LayoutUtil.getIndent();
fColorEditorLabel.setLayoutData(gd);
fSyntaxForegroundColorEditor= new ColorSelector(stylesComposite);
Button foregroundColorButton= fSyntaxForegroundColorEditor.getButton();
gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
foregroundColorButton.setLayoutData(gd);
fBoldCheckBox= new Button(stylesComposite, SWT.CHECK);
fBoldCheckBox.setText(PreferencesMessages.JavaEditorPreferencePage_bold);
gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
gd.horizontalIndent= LayoutUtil.getIndent();
gd.horizontalSpan= 2;
fBoldCheckBox.setLayoutData(gd);
fItalicCheckBox= new Button(stylesComposite, SWT.CHECK);
fItalicCheckBox.setText(PreferencesMessages.JavaEditorPreferencePage_italic);
gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
gd.horizontalIndent= LayoutUtil.getIndent();
gd.horizontalSpan= 2;
fItalicCheckBox.setLayoutData(gd);
fStrikethroughCheckBox= new Button(stylesComposite, SWT.CHECK);
fStrikethroughCheckBox.setText(PreferencesMessages.JavaEditorPreferencePage_strikethrough);
gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
gd.horizontalIndent= LayoutUtil.getIndent();
gd.horizontalSpan= 2;
fStrikethroughCheckBox.setLayoutData(gd);
fUnderlineCheckBox= new Button(stylesComposite, SWT.CHECK);
fUnderlineCheckBox.setText(PreferencesMessages.JavaEditorPreferencePage_underline);
gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
gd.horizontalIndent= LayoutUtil.getIndent();
gd.horizontalSpan= 2;
fUnderlineCheckBox.setLayoutData(gd);
label= new Label(colorComposite, SWT.LEFT);
label.setText(PreferencesMessages.JavaEditorPreferencePage_preview);
label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
Control previewer= createPreviewer(colorComposite);
gd= new GridData(GridData.FILL_HORIZONTAL);
gd.widthHint= convertWidthInCharsToPixels(20);
previewer.setLayoutData(gd);
fTreeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
handleSyntaxColorListSelection();
}
});
foregroundColorButton.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
// do nothing
}
public void widgetSelected(SelectionEvent e) {
HighlightingColorListItem item= getHighlightingColorListItem();
PreferenceConverter.setValue(getPreferenceStore(), item.getColorKey(), fSyntaxForegroundColorEditor.getColorValue());
}
});
fBoldCheckBox.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
// do nothing
}
public void widgetSelected(SelectionEvent e) {
HighlightingColorListItem item= getHighlightingColorListItem();
getPreferenceStore().setValue(item.getBoldKey(), fBoldCheckBox.getSelection());
}
});
fItalicCheckBox.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
// do nothing
}
public void widgetSelected(SelectionEvent e) {
HighlightingColorListItem item= getHighlightingColorListItem();
getPreferenceStore().setValue(item.getItalicKey(), fItalicCheckBox.getSelection());
}
});
fStrikethroughCheckBox.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
// do nothing
}
public void widgetSelected(SelectionEvent e) {
HighlightingColorListItem item= getHighlightingColorListItem();
getPreferenceStore().setValue(item.getStrikethroughKey(), fStrikethroughCheckBox.getSelection());
}
});
fUnderlineCheckBox.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
// do nothing
}
public void widgetSelected(SelectionEvent e) {
HighlightingColorListItem item= getHighlightingColorListItem();
getPreferenceStore().setValue(item.getUnderlineKey(), fUnderlineCheckBox.getSelection());
}
});
fEnableCheckbox.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
// do nothing
}
public void widgetSelected(SelectionEvent e) {
HighlightingColorListItem item= getHighlightingColorListItem();
if (item instanceof SemanticHighlightingColorListItem) {
boolean enable= fEnableCheckbox.getSelection();
getPreferenceStore().setValue(((SemanticHighlightingColorListItem) item).getEnableKey(), enable);
fEnableCheckbox.setSelection(enable);
fSyntaxForegroundColorEditor.getButton().setEnabled(enable);
fColorEditorLabel.setEnabled(enable);
fBoldCheckBox.setEnabled(enable);
fItalicCheckBox.setEnabled(enable);
fStrikethroughCheckBox.setEnabled(enable);
fUnderlineCheckBox.setEnabled(enable);
uninstallSemanticHighlighting();
installSemanticHighlighting();
}
}
});
colorComposite.layout();
return colorComposite;
}
/**
* Installs a double-click listener which allows
* to expand and collapse tree items.
*
* @since 3.4
*/
private void installDoubleClickListener() {
fTreeViewer.addDoubleClickListener(new IDoubleClickListener() {
/*
* @see org.eclipse.jface.viewers.IDoubleClickListener#doubleClick(org.eclipse.jface.viewers.DoubleClickEvent)
*/
public void doubleClick(DoubleClickEvent event) {
IStructuredSelection s= (IStructuredSelection) event.getSelection();
Object element= s.getFirstElement();
if (fTreeViewer.isExpandable(element))
fTreeViewer.setExpandedState(element, !fTreeViewer.getExpandedState(element));
}
});
}
private void addFiller(Composite composite, int horizontalSpan) {
PixelConverter pixelConverter= new PixelConverter(composite);
Label filler= new Label(composite, SWT.LEFT );
GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
gd.horizontalSpan= horizontalSpan;
gd.heightHint= pixelConverter.convertHeightInCharsToPixels(1) / 2;
filler.setLayoutData(gd);
}
private Control createPreviewer(Composite parent) {
IPreferenceStore generalTextStore= EditorsUI.getPreferenceStore();
IPreferenceStore store= new ChainedPreferenceStore(new IPreferenceStore[] { getPreferenceStore(), new PreferencesAdapter(createTemporaryCorePreferenceStore()), generalTextStore });
fPreviewViewer= new JavaSourceViewer(parent, null, null, false, SWT.H_SCROLL | SWT.BORDER, store);
SimpleJavaSourceViewerConfiguration configuration= new SimpleJavaSourceViewerConfiguration(fColorManager, store, null, IJavaPartitions.JAVA_PARTITIONING, false);
fPreviewViewer.configure(configuration);
// fake 1.5 source to get 1.5 features right.
configuration.handlePropertyChangeEvent(new PropertyChangeEvent(this, JavaCore.COMPILER_SOURCE, JavaCore.VERSION_1_4, JavaCore.VERSION_1_5));
Font font= JFaceResources.getFont(PreferenceConstants.EDITOR_TEXT_FONT);
fPreviewViewer.getTextWidget().setFont(font);
new JavaSourcePreviewerUpdater(fPreviewViewer, configuration, store);
fPreviewViewer.setEditable(false);
Cursor arrowCursor= fPreviewViewer.getTextWidget().getDisplay().getSystemCursor(SWT.CURSOR_ARROW);
fPreviewViewer.getTextWidget().setCursor(arrowCursor);
// Don't set caret to 'null' as this causes https://bugs.eclipse.org/293263
// fPreviewViewer.getTextWidget().setCaret(null);
String content= loadPreviewContentFromFile("ColorSettingPreviewCode.txt"); //$NON-NLS-1$
IDocument document= new Document(content);
JavaPlugin.getDefault().getJavaTextTools().setupJavaDocumentPartitioner(document, IJavaPartitions.JAVA_PARTITIONING);
fPreviewViewer.setDocument(document);
installSemanticHighlighting();
return fPreviewViewer.getControl();
}
private Preferences createTemporaryCorePreferenceStore() {
Preferences result= new Preferences();
result.setValue(COMPILER_TASK_TAGS, "TASK,TODO"); //$NON-NLS-1$
return result;
}
private String loadPreviewContentFromFile(String filename) {
String line;
String separator= System.getProperty("line.separator"); //$NON-NLS-1$
StringBuffer buffer= new StringBuffer(512);
BufferedReader reader= null;
try {
reader= new BufferedReader(new InputStreamReader(getClass().getResourceAsStream(filename)));
while ((line= reader.readLine()) != null) {
buffer.append(line);
buffer.append(separator);
}
buffer.setLength(buffer.length() - separator.length());
} catch (IOException io) {
JavaPlugin.log(io);
} finally {
if (reader != null) {
try { reader.close(); } catch (IOException e) {}
}
}
return buffer.toString();
}
/**
* Install Semantic Highlighting on the previewer
*
* @since 3.0
*/
private void installSemanticHighlighting() {
if (fSemanticHighlightingManager == null) {
fSemanticHighlightingManager= new SemanticHighlightingManager();
fSemanticHighlightingManager.install(fPreviewViewer, fColorManager, getPreferenceStore(), createPreviewerRanges());
}
}
/**
* Uninstall Semantic Highlighting from the previewer
*
* @since 3.0
*/
private void uninstallSemanticHighlighting() {
if (fSemanticHighlightingManager != null) {
fSemanticHighlightingManager.uninstall();
fSemanticHighlightingManager= null;
}
}
/**
* Create the hard coded previewer ranges
*
* @return the hard coded previewer ranges
* @since 3.0
*/
private SemanticHighlightingManager.HighlightedRange[][] createPreviewerRanges() {
return new SemanticHighlightingManager.HighlightedRange[][] {
{ createHighlightedRange( 6, 13, 9, SemanticHighlightings.DEPRECATED_MEMBER), createHighlightedRange( 6, 13, 9, SemanticHighlightings.CLASS), },
{ createHighlightedRange( 6, 23, 1, SemanticHighlightings.TYPE_VARIABLE), createHighlightedRange( 6, 23, 1, SemanticHighlightings.TYPE_ARGUMENT), },
{ createHighlightedRange( 6, 34, 8, SemanticHighlightings.CLASS) },
{ createHighlightedRange( 6, 54, 13, SemanticHighlightings.INTERFACE) },
{ createHighlightedRange( 6, 68, 6, SemanticHighlightings.TYPE_ARGUMENT), createHighlightedRange( 6, 68, 6, SemanticHighlightings.CLASS) },
{ createHighlightedRange( 7, 6, 5, SemanticHighlightings.ENUM), },
{ createHighlightedRange( 7, 14, 3, SemanticHighlightings.STATIC_FINAL_FIELD), createHighlightedRange( 7, 14, 3, SemanticHighlightings.STATIC_FIELD), createHighlightedRange(7, 14, 3, SemanticHighlightings.FIELD) },
{ createHighlightedRange( 7, 19, 5, SemanticHighlightings.STATIC_FINAL_FIELD), createHighlightedRange( 7, 19, 5, SemanticHighlightings.STATIC_FIELD), createHighlightedRange(7, 19, 5, SemanticHighlightings.FIELD) },
{ createHighlightedRange( 7, 26, 4, SemanticHighlightings.STATIC_FINAL_FIELD), createHighlightedRange( 7, 26, 4, SemanticHighlightings.STATIC_FIELD), createHighlightedRange(7, 26, 4, SemanticHighlightings.FIELD) },
{ createHighlightedRange( 9, 8, 6, SemanticHighlightings.CLASS), },
{ createHighlightedRange( 9, 15, 11, SemanticHighlightings.STATIC_FIELD), createHighlightedRange( 9, 15, 11, SemanticHighlightings.FIELD) },
{ createHighlightedRange(11, 9, 1, SemanticHighlightings.TYPE_VARIABLE) },
{ createHighlightedRange(11, 11, 5, SemanticHighlightings.FIELD) },
{ createHighlightedRange(12, 9, 17, SemanticHighlightings.ABSTRACT_CLASS), createHighlightedRange(12, 9, 17, SemanticHighlightings.CLASS) },
{ createHighlightedRange(12, 27, 6, SemanticHighlightings.FIELD) },
{ createHighlightedRange(14, 2, 16, SemanticHighlightings.ANNOTATION) },
{ createHighlightedRange(14, 19, 5, SemanticHighlightings.ANNOTATION_ELEMENT_REFERENCE) },
{ createHighlightedRange(15, 12, 3, SemanticHighlightings.METHOD_DECLARATION), createHighlightedRange(15, 12, 3, SemanticHighlightings.METHOD) },
{ createHighlightedRange(15, 16, 7, SemanticHighlightings.CLASS) },
{ createHighlightedRange(15, 24, 9, SemanticHighlightings.PARAMETER_VARIABLE), createHighlightedRange(15, 24, 9, SemanticHighlightings.LOCAL_VARIABLE_DECLARATION), createHighlightedRange(15, 24, 9, SemanticHighlightings.LOCAL_VARIABLE) },
{ createHighlightedRange(16, 2, 14, SemanticHighlightings.ABSTRACT_METHOD_INVOCATION), createHighlightedRange(16, 2, 14, SemanticHighlightings.METHOD) },
{ createHighlightedRange(16, 17, 14, SemanticHighlightings.INHERITED_FIELD), createHighlightedRange(16, 17, 14, SemanticHighlightings.FIELD) },
{ createHighlightedRange(17, 6, 5, SemanticHighlightings.LOCAL_VARIABLE_DECLARATION), createHighlightedRange(17, 6, 5, SemanticHighlightings.LOCAL_VARIABLE) },
{ createHighlightedRange(17, 13, 2, SemanticHighlightings.NUMBER) },
{ createHighlightedRange(17, 16, 8, SemanticHighlightings.INHERITED_METHOD_INVOCATION), createHighlightedRange(17, 16, 8, SemanticHighlightings.METHOD) },
{ createHighlightedRange(18, 2, 12, SemanticHighlightings.STATIC_METHOD_INVOCATION), createHighlightedRange(18, 2, 12, SemanticHighlightings.METHOD) },
{ createHighlightedRange(19, 9, 3, SemanticHighlightings.METHOD) },
{ createHighlightedRange(19, 13, 5, SemanticHighlightings.LOCAL_VARIABLE) },
{ createHighlightedRange(19, 22, 9, SemanticHighlightings.AUTOBOXING), createHighlightedRange(19, 22, 9, SemanticHighlightings.PARAMETER_VARIABLE), createHighlightedRange(19, 22, 9, SemanticHighlightings.LOCAL_VARIABLE) },
};
}
/**
* Create a highlighted range on the previewers document with the given line, column, length and key.
*
* @param line the line
* @param column the column
* @param length the length
* @param key the key
* @return the highlighted range
* @since 3.0
*/
private HighlightedRange createHighlightedRange(int line, int column, int length, String key) {
try {
IDocument document= fPreviewViewer.getDocument();
int offset= document.getLineOffset(line) + column;
return new HighlightedRange(offset, length, key);
} catch (BadLocationException x) {
JavaPlugin.log(x);
}
return null;
}
/**
* Returns the current highlighting color list item.
*
* @return the current highlighting color list item
* @since 3.0
*/
private HighlightingColorListItem getHighlightingColorListItem() {
IStructuredSelection selection= (IStructuredSelection) fTreeViewer.getSelection();
Object element= selection.getFirstElement();
if (element instanceof String)
return null;
return (HighlightingColorListItem) element;
}
/**
* 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
*/
private void initializeDialogUnits(Control testControl) {
// Compute and store a font metric
GC gc = new GC(testControl);
gc.setFont(JFaceResources.getDialogFont());
fFontMetrics = gc.getFontMetrics();
gc.dispose();
}
}