diff options
Diffstat (limited to 'bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/style/jspel/LineStyleProviderForJSPEL.java')
| -rw-r--r-- | bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/style/jspel/LineStyleProviderForJSPEL.java | 376 |
1 files changed, 0 insertions, 376 deletions
diff --git a/bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/style/jspel/LineStyleProviderForJSPEL.java b/bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/style/jspel/LineStyleProviderForJSPEL.java deleted file mode 100644 index 4acabe5893..0000000000 --- a/bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/style/jspel/LineStyleProviderForJSPEL.java +++ /dev/null @@ -1,376 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004, 2007 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.jst.jsp.ui.internal.style.jspel; - -import java.util.Collection; -import java.util.HashMap; - -import org.eclipse.jdt.ui.PreferenceConstants; -import org.eclipse.jface.preference.IPreferenceStore; -import org.eclipse.jface.preference.PreferenceConverter; -import org.eclipse.jface.text.BadLocationException; -import org.eclipse.jface.text.Document; -import org.eclipse.jface.text.IDocument; -import org.eclipse.jface.text.ITypedRegion; -import org.eclipse.jface.text.TextAttribute; -import org.eclipse.jface.text.rules.IToken; -import org.eclipse.jface.text.rules.Token; -import org.eclipse.jface.util.IPropertyChangeListener; -import org.eclipse.jface.util.PropertyChangeEvent; -import org.eclipse.jst.jsp.ui.internal.JSPUIPlugin; -import org.eclipse.jst.jsp.ui.internal.style.IStyleConstantsJSP; -import org.eclipse.jst.jsp.ui.internal.style.java.IStyleConstantsJSPJava; -import org.eclipse.swt.SWT; -import org.eclipse.swt.custom.StyleRange; -import org.eclipse.swt.graphics.Color; -import org.eclipse.swt.graphics.RGB; -import org.eclipse.swt.widgets.Display; -import org.eclipse.wst.html.ui.internal.style.IStyleConstantsHTML; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; -import org.eclipse.wst.sse.ui.internal.preferences.ui.ColorHelper; -import org.eclipse.wst.sse.ui.internal.provisional.style.Highlighter; -import org.eclipse.wst.sse.ui.internal.provisional.style.LineStyleProvider; -import org.eclipse.wst.sse.ui.internal.util.EditorUtility; -import org.eclipse.wst.xml.ui.internal.style.IStyleConstantsXML; - -// Note: many of the methods in this class were based on (or copied from) -// those -// found in the example Java Editor -public class LineStyleProviderForJSPEL implements LineStyleProvider { - private class PropertyChangeListener implements IPropertyChangeListener { - /* - * (non-Javadoc) - * - * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent) - */ - public void propertyChange(PropertyChangeEvent event) { - // have to do it this way so others can override the method - handlePropertyChange(event); - } - } - - private IDocument fDocument; - private Highlighter fHighlighter; - private boolean fIsInitialized = false; - private PropertyChangeListener fPreferenceListener = new PropertyChangeListener(); - /** The scanner it uses */ - private JSPELCodeScanner fScanner; - /** Contains all text attributes pretaining to this line style provider */ - private HashMap fTextAttributes = null; - - public LineStyleProviderForJSPEL() { - super(); - fScanner = new JSPELCodeScanner(); - } - - /** - * Adds style information to the given text presentation. - * - * @param presentation - * the text presentation to be extended - * @param offset - * the offset of the range to be styled - * @param length - * the length of the range to be styled - * @param attr - * the attribute describing the style of the range to be styled - */ - private void addRange(Collection presentation, int offset, int length, TextAttribute attr) { - // support for user defined backgroud for JSP scriptlet regions - String styleString = JSPUIPlugin.getDefault().getPreferenceStore().getString(IStyleConstantsJSP.JSP_CONTENT); - String[] prefs = ColorHelper.unpackStylePreferences(styleString); - Color bgColor = (prefs != null && prefs.length == 3 && prefs[1].startsWith("#") && Display.getCurrent() != null) //$NON-NLS-1$ - ? new Color(Display.getCurrent(), ColorHelper.toRGB(prefs[1])) : attr.getBackground(); - - presentation.add(new StyleRange(offset, length, attr.getForeground(), bgColor, attr.getStyle())); - } - - /** - * Looks up the colorKey in the preference store and adds the style - * information to list of TextAttributes - * - * @param colorKey - */ - private void addTextAttribute(String colorKey) { - if (getColorPreferences() != null) { - String prefString = getColorPreferences().getString(colorKey); - String[] stylePrefs = ColorHelper.unpackStylePreferences(prefString); - if (stylePrefs != null) { - RGB foreground = ColorHelper.toRGB(stylePrefs[0]); - RGB background = ColorHelper.toRGB(stylePrefs[1]); - boolean bold = Boolean.valueOf(stylePrefs[2]).booleanValue(); - boolean italic = Boolean.valueOf(stylePrefs[3]).booleanValue(); - boolean strikethrough = Boolean.valueOf(stylePrefs[4]).booleanValue(); - boolean underline = Boolean.valueOf(stylePrefs[5]).booleanValue(); - int style = SWT.NORMAL; - if (bold) { - style = style | SWT.BOLD; - } - if (italic) { - style = style | SWT.ITALIC; - } - if (strikethrough) { - style = style | TextAttribute.STRIKETHROUGH; - } - if (underline) { - style = style | TextAttribute.UNDERLINE; - } - - TextAttribute createTextAttribute = createTextAttribute(foreground, background, style); - getTextAttributes().put(colorKey, createTextAttribute); - } - } - } - - /** - * Looks up the colorKey in the preference store and adds the style - * information to list of TextAttributes - * - * @param colorKey - */ - private void addJavaTextAttribute(String colorKey) { - IPreferenceStore store = getJavaColorPreferences(); - if (store != null && colorKey != null) { - TextAttribute ta = null; - if (colorKey == IStyleConstantsJSPEL.EL_KEYWORD) { - // keyword - RGB foreground = PreferenceConverter.getColor(store, PreferenceConstants.EDITOR_JAVA_KEYWORD_COLOR); - boolean bold = store.getBoolean(PreferenceConstants.EDITOR_JAVA_KEYWORD_BOLD); - boolean italics = store.getBoolean(PreferenceConstants.EDITOR_JAVA_KEYWORD_ITALIC); - boolean strikethrough = store.getBoolean(PreferenceConstants.EDITOR_JAVA_KEYWORD_STRIKETHROUGH); - boolean underline = store.getBoolean(PreferenceConstants.EDITOR_JAVA_KEYWORD_UNDERLINE); - int style = SWT.NORMAL; - if (bold) { - style = style | SWT.BOLD; - } - if (italics) { - style = style | SWT.ITALIC; - } - if (strikethrough) { - style = style | TextAttribute.STRIKETHROUGH; - } - if (underline) { - style = style | TextAttribute.UNDERLINE; - } - - ta = createTextAttribute(foreground, null, style); - } else if (colorKey == IStyleConstantsJSPEL.EL_DEFAULT) { - // default - RGB foreground = PreferenceConverter.getColor(store, PreferenceConstants.EDITOR_JAVA_DEFAULT_COLOR); - boolean bold = store.getBoolean(PreferenceConstants.EDITOR_JAVA_DEFAULT_BOLD); - boolean italics = store.getBoolean(PreferenceConstants.EDITOR_JAVA_DEFAULT_ITALIC); - boolean strikethrough = store.getBoolean(PreferenceConstants.EDITOR_JAVA_DEFAULT_STRIKETHROUGH); - boolean underline = store.getBoolean(PreferenceConstants.EDITOR_JAVA_DEFAULT_UNDERLINE); - int style = SWT.NORMAL; - if (bold) { - style = style | SWT.BOLD; - } - if (italics) { - style = style | SWT.ITALIC; - } - if (strikethrough) { - style = style | TextAttribute.STRIKETHROUGH; - } - if (underline) { - style = style | TextAttribute.UNDERLINE; - } - - ta = createTextAttribute(foreground, null, style); - } - if (ta != null) { - getTextAttributes().put(colorKey, ta); - fScanner.setTokenData(colorKey, ta); - } - } - } - - private TextAttribute createTextAttribute(RGB foreground, RGB background, int style) { - return new TextAttribute((foreground != null) ? EditorUtility.getColor(foreground) : null, (background != null) ? EditorUtility.getColor(background) : null, style); - } - - /** - * Returns the hashtable containing all the text attributes for this line - * style provider. Lazily creates a hashtable if one has not already been - * created. - * - * @return - */ - private HashMap getTextAttributes() { - if (fTextAttributes == null) { - fTextAttributes = new HashMap(); - loadColors(); - } - return fTextAttributes; - } - - /** - * Returns a text attribute encoded in the given token. If the token's - * data is not <code>null</code> and a text attribute it is assumed that - * it is the encoded text attribute. It returns the default text attribute - * if there is no encoded text attribute found. - * - * @param token - * the token whose text attribute is to be determined - * @return the token's text attribute - */ - private TextAttribute getTokenTextAttribute(IToken token) { - TextAttribute ta = null; - - Object data = token.getData(); - if (data instanceof TextAttribute) - ta = (TextAttribute) data; - else { - ta = (TextAttribute) getTextAttributes().get(IStyleConstantsJSPJava.JAVA_DEFAULT); - } - return ta; - } - - public void init(IStructuredDocument document, Highlighter highlighter) { - fDocument = document; - fHighlighter = highlighter; - - if (fIsInitialized) - return; - - registerPreferenceListener(); - - fIsInitialized = true; - } - - private void loadColors() { - addTextAttribute(IStyleConstantsHTML.SCRIPT_AREA_BORDER); - addTextAttribute(IStyleConstantsXML.TAG_ATTRIBUTE_NAME); - addTextAttribute(IStyleConstantsXML.TAG_ATTRIBUTE_VALUE); - - addJavaTextAttribute(IStyleConstantsJSPJava.JAVA_KEYWORD); - addJavaTextAttribute(IStyleConstantsJSPJava.JAVA_DEFAULT); - - fScanner.initializeRules(); - } - - protected void handlePropertyChange(PropertyChangeEvent event) { - String styleKey = null; - String javaStyleKey = null; - - if (event != null) { - String prefKey = event.getProperty(); - // check if preference changed is a style preference - if (IStyleConstantsHTML.SCRIPT_AREA_BORDER.equals(prefKey)) { - styleKey = IStyleConstantsHTML.SCRIPT_AREA_BORDER; - } else if (IStyleConstantsXML.TAG_ATTRIBUTE_NAME.equals(prefKey)) { - styleKey = IStyleConstantsXML.TAG_ATTRIBUTE_NAME; - } else if (IStyleConstantsXML.TAG_ATTRIBUTE_VALUE.equals(prefKey)) { - styleKey = IStyleConstantsXML.TAG_ATTRIBUTE_VALUE; - } else if (PreferenceConstants.EDITOR_JAVA_KEYWORD_COLOR.equals(prefKey) || (PreferenceConstants.EDITOR_JAVA_KEYWORD_BOLD.equals(prefKey)) || (PreferenceConstants.EDITOR_JAVA_KEYWORD_ITALIC.equals(prefKey))) { - javaStyleKey = IStyleConstantsJSPEL.EL_KEYWORD; - } else if (PreferenceConstants.EDITOR_JAVA_DEFAULT_COLOR.equals(prefKey) || (PreferenceConstants.EDITOR_JAVA_DEFAULT_BOLD.equals(prefKey)) || (PreferenceConstants.EDITOR_JAVA_DEFAULT_ITALIC.equals(prefKey))) { - javaStyleKey = IStyleConstantsJSPEL.EL_DEFAULT; - } - } - - if (styleKey != null) { - // overwrite style preference with new value - addTextAttribute(styleKey); - } - if (javaStyleKey != null) { - // overwrite style preference with new value - addJavaTextAttribute(javaStyleKey); - fScanner.initializeRules(); - } - if (styleKey != null || javaStyleKey != null) { - // force a full update of the text viewer - fHighlighter.refreshDisplay(); - } - } - - public boolean prepareRegions(ITypedRegion typedRegion, int ssssrequestedStart, int ssssrequestedLength, Collection holdResults) { - boolean result = true; - try { - // ideally, eventually, we'll have a "virtualDocument" we can - // refer to, but for now ... we'll simple rescan the one region. - // use simple adjustment (since "sub-content" starts at 0 - int offsetAdjustment = typedRegion.getOffset(); - String content = fDocument.get(typedRegion.getOffset(), typedRegion.getLength()); - IDocument document = new Document(content); - - int lastStart = 0; - int length = 0; - IToken lastToken = Token.UNDEFINED; - - int remainingLength = typedRegion.getLength(); - fScanner.setRange(document, lastStart, remainingLength); - - while (true) { - - IToken token = fScanner.nextToken(); - - if (token.isEOF()) { - if (!lastToken.isUndefined() && length != 0) - addRange(holdResults, lastStart + offsetAdjustment, length, getTokenTextAttribute(lastToken)); - break; - } - - if (token.isWhitespace()) { - length += fScanner.getTokenLength(); - continue; - } - - if (lastToken.isUndefined()) { - lastToken = token; - length += fScanner.getTokenLength(); - continue; - } - - if (token != lastToken) { - addRange(holdResults, lastStart + offsetAdjustment, length, getTokenTextAttribute(lastToken)); - lastToken = token; - lastStart = fScanner.getTokenOffset(); - length = fScanner.getTokenLength(); - continue; - } - - length += fScanner.getTokenLength(); - } - } catch (BadLocationException e) { - // shouldn't happen, but we don't want it to stop other - // highlighting, if it does. - result = false; - } - return result; - } - - private void registerPreferenceListener() { - getColorPreferences().addPropertyChangeListener(fPreferenceListener); - getJavaColorPreferences().addPropertyChangeListener(fPreferenceListener); - } - - public void release() { - unRegisterPreferenceManager(); - if (fTextAttributes != null) { - fTextAttributes.clear(); - fTextAttributes = null; - } - fIsInitialized = false; - } - - private void unRegisterPreferenceManager() { - getColorPreferences().removePropertyChangeListener(fPreferenceListener); - getJavaColorPreferences().removePropertyChangeListener(fPreferenceListener); - } - - private IPreferenceStore getColorPreferences() { - return JSPUIPlugin.getDefault().getPreferenceStore(); - } - - private IPreferenceStore getJavaColorPreferences() { - return PreferenceConstants.getPreferenceStore(); - } -} |