/*******************************************************************************
* Copyright (c) 2000, 2005 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.ant.internal.ui;
import org.eclipse.ant.internal.ui.editor.text.AntDocumentSetupParticipant;
import org.eclipse.ant.internal.ui.editor.text.AntEditorPartitionScanner;
import org.eclipse.ant.internal.ui.editor.text.AntEditorProcInstrScanner;
import org.eclipse.ant.internal.ui.editor.text.AntEditorTagScanner;
import org.eclipse.ant.internal.ui.editor.text.IAntEditorColorConstants;
import org.eclipse.ant.internal.ui.editor.text.MultilineDamagerRepairer;
import org.eclipse.ant.internal.ui.preferences.AntEditorPreferenceConstants;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.StringConverter;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextDoubleClickStrategy;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.text.presentation.IPresentationReconciler;
import org.eclipse.jface.text.presentation.PresentationReconciler;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.ui.editors.text.TextSourceViewerConfiguration;
import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
public class AntSourceViewerConfiguration extends TextSourceViewerConfiguration {
private AntEditorTagScanner tagScanner;
private AntEditorProcInstrScanner instructionScanner;
private MultilineDamagerRepairer damageRepairer;
private MultilineDamagerRepairer dtdDamageRepairer;
private TextAttribute xmlCommentAttribute;
private TextAttribute xmlDtdAttribute;
public AntSourceViewerConfiguration() {
super(AntUIPlugin.getDefault().getCombinedPreferenceStore());
}
private AntEditorProcInstrScanner getDefaultScanner() {
if (instructionScanner == null) {
instructionScanner = new AntEditorProcInstrScanner();
}
return instructionScanner;
}
private AntEditorTagScanner getTagScanner() {
if (tagScanner == null) {
tagScanner = new AntEditorTagScanner();
}
return tagScanner;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.SourceViewerConfiguration#getPresentationReconciler(org.eclipse.jface.text.source.ISourceViewer)
*/
@Override
public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {
PresentationReconciler reconciler = new PresentationReconciler();
reconciler.setDocumentPartitioning(getConfiguredDocumentPartitioning(sourceViewer));
MultilineDamagerRepairer dr = new MultilineDamagerRepairer(getDefaultScanner());
reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);
dr = new MultilineDamagerRepairer(getTagScanner());
reconciler.setDamager(dr, AntEditorPartitionScanner.XML_TAG);
reconciler.setRepairer(dr, AntEditorPartitionScanner.XML_TAG);
int style = getStyle(IAntEditorColorConstants.XML_COMMENT_COLOR);
xmlCommentAttribute = new TextAttribute(AntUIPlugin.getPreferenceColor(IAntEditorColorConstants.XML_COMMENT_COLOR), null, style);
damageRepairer = new MultilineDamagerRepairer(null, xmlCommentAttribute);
reconciler.setDamager(damageRepairer, AntEditorPartitionScanner.XML_COMMENT);
reconciler.setRepairer(damageRepairer, AntEditorPartitionScanner.XML_COMMENT);
style = getStyle(IAntEditorColorConstants.XML_DTD_COLOR);
xmlDtdAttribute = new TextAttribute(AntUIPlugin.getPreferenceColor(IAntEditorColorConstants.XML_DTD_COLOR), null, style);
dtdDamageRepairer = new MultilineDamagerRepairer(null, xmlDtdAttribute);
reconciler.setDamager(dtdDamageRepairer, AntEditorPartitionScanner.XML_DTD);
reconciler.setRepairer(dtdDamageRepairer, AntEditorPartitionScanner.XML_DTD);
return reconciler;
}
private int getStyle(String pref) {
int style = SWT.NORMAL;
if (fPreferenceStore.getBoolean(pref + AntEditorPreferenceConstants.EDITOR_BOLD_SUFFIX)) {
style |= SWT.BOLD;
}
if (fPreferenceStore.getBoolean(pref + AntEditorPreferenceConstants.EDITOR_ITALIC_SUFFIX)) {
style |= SWT.ITALIC;
}
return style;
}
/**
* Preference colors have changed. Update the default tokens of the scanners.
*/
public void adaptToPreferenceChange(PropertyChangeEvent event) {
if (tagScanner == null) {
return; // property change before the editor is fully created
}
tagScanner.adaptToPreferenceChange(event);
instructionScanner.adaptToPreferenceChange(event);
String property = event.getProperty();
if (property.startsWith(IAntEditorColorConstants.XML_COMMENT_COLOR)) {
xmlCommentAttribute = adaptTextAttribute(event, property, xmlCommentAttribute, damageRepairer);
} else if (property.startsWith(IAntEditorColorConstants.XML_DTD_COLOR)) {
xmlDtdAttribute = adaptTextAttribute(event, property, xmlDtdAttribute, dtdDamageRepairer);
}
}
private TextAttribute adaptTextAttribute(PropertyChangeEvent event, String property, TextAttribute textAttribute, MultilineDamagerRepairer repairer) {
if (property.endsWith(AntEditorPreferenceConstants.EDITOR_BOLD_SUFFIX)) {
textAttribute = adaptToStyleChange(event, SWT.BOLD, textAttribute);
} else if (property.endsWith(AntEditorPreferenceConstants.EDITOR_ITALIC_SUFFIX)) {
textAttribute = adaptToStyleChange(event, SWT.ITALIC, textAttribute);
} else {
textAttribute = adaptToColorChange(event, textAttribute);
}
repairer.setDefaultTextAttribute(textAttribute);
return textAttribute;
}
private TextAttribute adaptToStyleChange(PropertyChangeEvent event, int styleAttribute, TextAttribute textAttribute) {
boolean eventValue = false;
Object value = event.getNewValue();
if (value instanceof Boolean) {
eventValue = ((Boolean) value).booleanValue();
} else if (IPreferenceStore.TRUE.equals(value)) {
eventValue = true;
}
boolean activeValue = (textAttribute.getStyle() & styleAttribute) == styleAttribute;
if (activeValue != eventValue) {
textAttribute = new TextAttribute(textAttribute.getForeground(), textAttribute.getBackground(), eventValue ? textAttribute.getStyle()
| styleAttribute : textAttribute.getStyle() & ~styleAttribute);
}
return textAttribute;
}
/**
* Update the text attributes associated with the tokens of this scanner as a color preference has been changed.
*/
private TextAttribute adaptToColorChange(PropertyChangeEvent event, TextAttribute textAttribute) {
RGB rgb = null;
Object value = event.getNewValue();
if (value instanceof RGB) {
rgb = (RGB) value;
} else if (value instanceof String) {
rgb = StringConverter.asRGB((String) value);
}
if (rgb != null) {
textAttribute = new TextAttribute(ColorManager.getDefault().getColor(rgb), textAttribute.getBackground(), textAttribute.getStyle());
}
return textAttribute;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.SourceViewerConfiguration#getConfiguredContentTypes(org.eclipse.jface.text.source.ISourceViewer)
*/
@Override
public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
return new String[] { IDocument.DEFAULT_CONTENT_TYPE, AntEditorPartitionScanner.XML_COMMENT, AntEditorPartitionScanner.XML_TAG,
AntEditorPartitionScanner.XML_CDATA, AntEditorPartitionScanner.XML_DTD };
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.SourceViewerConfiguration#getTabWidth(org.eclipse.jface.text.source.ISourceViewer)
*/
@Override
public int getTabWidth(ISourceViewer sourceViewer) {
return fPreferenceStore.getInt(AbstractDecoratedTextEditorPreferenceConstants.EDITOR_TAB_WIDTH);
}
public boolean affectsTextPresentation(PropertyChangeEvent event) {
String property = event.getProperty();
return property.startsWith(IAntEditorColorConstants.TEXT_COLOR)
|| property.startsWith(IAntEditorColorConstants.PROCESSING_INSTRUCTIONS_COLOR)
|| property.startsWith(IAntEditorColorConstants.STRING_COLOR) || property.startsWith(IAntEditorColorConstants.TAG_COLOR)
|| property.startsWith(IAntEditorColorConstants.XML_COMMENT_COLOR) || property.startsWith(IAntEditorColorConstants.XML_DTD_COLOR);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.SourceViewerConfiguration#getConfiguredDocumentPartitioning(org.eclipse.jface.text.source.ISourceViewer)
*/
@Override
public String getConfiguredDocumentPartitioning(ISourceViewer sourceViewer) {
return AntDocumentSetupParticipant.ANT_PARTITIONING;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.SourceViewerConfiguration#getDoubleClickStrategy(org.eclipse.jface.text.source.ISourceViewer,
* java.lang.String)
*/
@Override
public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
if (AntEditorPartitionScanner.XML_TAG.equals(contentType)) {
return new AntDoubleClickStrategy();
}
return super.getDoubleClickStrategy(sourceViewer, contentType);
}
}