/*******************************************************************************
* Copyright (c) 2009 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
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.ui.editor;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceConverter;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.php.internal.core.documentModel.provisional.contenttype.ContentTypeIdForPHP;
import org.eclipse.php.internal.ui.editor.highlighter.LineStyleProviderForPHP;
import org.eclipse.swt.SWT;
import org.eclipse.swt.accessibility.ACC;
import org.eclipse.swt.accessibility.AccessibleAdapter;
import org.eclipse.swt.accessibility.AccessibleEvent;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.internal.editors.text.EditorsPlugin;
import org.eclipse.ui.texteditor.AbstractTextEditor;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.core.internal.document.DocumentReader;
import org.eclipse.wst.sse.core.internal.ltk.parser.RegionParser;
import org.eclipse.wst.sse.core.internal.provisional.IModelManager;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.sse.ui.internal.SSEUIMessages;
public class PHPSourceViewer extends Composite implements IPropertyChangeListener {
private Color fDefaultBackground;
private Color fDefaultForeground;
private String fInput = ""; //$NON-NLS-1$
private IStructuredDocumentRegion fNodes = null;
private RegionParser fParser = null;
private StyledText fText = null;
private LineStyleProviderForPHP styleProvider;
private IPreferenceStore editorStore;
public PHPSourceViewer(Composite parent, int style) {
super(parent, style);
editorStore = EditorsPlugin.getDefault().getPreferenceStore();
fDefaultBackground = editorStore.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT)
? null
: new Color(getDisplay(),
PreferenceConverter.getColor(editorStore, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND));
fDefaultForeground = editorStore.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND_SYSTEM_DEFAULT)
? null
: new Color(getDisplay(),
PreferenceConverter.getColor(editorStore, AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND));
editorStore.addPropertyChangeListener(this);
FillLayout layout = new FillLayout();
setLayout(layout);
// GridData data = new GridData(GridData.FILL_BOTH |
// GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL);
// setLayoutData(data);
createControls(this);
setupViewer();
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse
* .jface.util.PropertyChangeEvent)
*/
@Override
public void propertyChange(final PropertyChangeEvent event) {
if (AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT.equals(event.getProperty())) {
if (editorStore.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT))
fDefaultBackground = null;
else
fDefaultBackground = new Color(Display.getCurrent(),
PreferenceConverter.getColor(editorStore, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND));
refresh();
} else if (AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND_SYSTEM_DEFAULT.equals(event.getProperty())) {
if (editorStore.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND_SYSTEM_DEFAULT))
fDefaultForeground = null;
else
fDefaultForeground = new Color(Display.getCurrent(),
PreferenceConverter.getColor(editorStore, AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND));
refresh();
} else if (AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND.equals(event.getProperty())) {
fDefaultBackground = new Color(Display.getCurrent(),
PreferenceConverter.getColor(editorStore, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND));
refresh();
} else if (AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND.equals(event.getProperty())) {
fDefaultForeground = new Color(Display.getCurrent(),
PreferenceConverter.getColor(editorStore, AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND));
refresh();
}
}
public void createControls(Composite parent) {
fText = new StyledText(parent, SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
fText.getContent().addTextChangeListener(new TextChangeListener() {
DocumentReader docReader;
Document document;
@Override
public void textChanging(TextChangingEvent event) {
}
@Override
public void textChanged(TextChangedEvent event) {
if (docReader == null) {
document = new Document();
docReader = new DocumentReader();
}
fInput = getText();
document.set(fInput);
docReader.reset(document, 0);
getParser().reset(docReader);
fNodes = getParser().getDocumentRegions();
applyStyles();
}
@Override
public void textSet(TextChangedEvent event) {
}
});
fText.setBackground(fDefaultBackground);
fText.setForeground(fDefaultForeground);
fText.setFont(JFaceResources.getTextFont());
setAccessible(fText, SSEUIMessages.Sample_text__UI_); // $NON-NLS-1$ =
// "&Sample
// text:"
}
public void setEditable(boolean editable) {
fText.setEditable(editable);
}
/**
* @return org.eclipse.swt.graphics.Color
*/
public Color getDefaultBackground() {
return fDefaultBackground;
}
/**
* @return org.eclipse.swt.graphics.Color
*/
public Color getDefaultForeground() {
return fDefaultForeground;
}
@Override
public Font getFont() {
return fText.getFont();
}
public RegionParser getParser() {
return fParser;
}
public String getText() {
return fText.getText();
}
// refresh the GUI after a color change
public void refresh() {
if (!fText.isDisposed()) {
fText.setRedraw(false);
fText.setBackground(fDefaultBackground);
fText.setForeground(fDefaultForeground);
// update Font
fText.setFont(JFaceResources.getTextFont());
// reapplyStyles
applyStyles();
fText.setRedraw(true);
}
}
public void releasePickerResources() {
}
/**
* Specifically set the reporting name of a control for accessibility
*/
private void setAccessible(Control control, String name) {
if (control == null)
return;
final String n = name;
control.getAccessible().addAccessibleListener(new AccessibleAdapter() {
@Override
public void getName(AccessibleEvent e) {
if (e.childID == ACC.CHILDID_SELF)
e.result = n;
}
});
}
/**
* @param newDefaultBackground
* org.eclipse.swt.graphics.Color
*/
public void setDefaultBackground(Color newDefaultBackground) {
fDefaultBackground = newDefaultBackground;
}
/**
* @param newDefaultForeground
* org.eclipse.swt.graphics.Color
*/
public void setDefaultForeground(Color newDefaultForeground) {
fDefaultForeground = newDefaultForeground;
}
@Override
public void setFont(Font font) {
fText.setFont(font);
fText.redraw();
}
/**
* @param newParser
*/
public void setParser(RegionParser newParser) {
fParser = newParser;
}
public TextAttribute getAttribute(String namedStyle) {
TextAttribute ta = new TextAttribute(getDefaultForeground(), getDefaultBackground(), SWT.NORMAL);
if (namedStyle != null && styleProvider != null) {
ta = styleProvider.getTextAttributeForColor(namedStyle);
}
return ta;
}
public void applyStyles() {
if (fText == null || fText.isDisposed() || fInput == null || fInput.length() == 0) {
return;
}
styleProvider.loadColors();
IStructuredDocumentRegion documentRegion = fNodes;
while (documentRegion != null) {
final Collection<StyleRange> holdResults = new ArrayList<>();
styleProvider.prepareTextRegions(documentRegion, 0, documentRegion.getEnd(), holdResults);
for (Iterator<StyleRange> iter = holdResults.iterator(); iter.hasNext();) {
StyleRange element = (StyleRange) iter.next();
fText.setStyleRange(element);
}
documentRegion = documentRegion.getNext();
}
}
public void setText(String s) {
fInput = s;
DocumentReader docReader = new DocumentReader(new Document(fInput));
getParser().reset(docReader);
fNodes = getParser().getDocumentRegions();
if (fText != null) {
fText.setText(s);
}
applyStyles();
}
public void setupViewer() {
IModelManager mmanager = StructuredModelManager.getModelManager();
setParser(mmanager.createStructuredDocumentFor(ContentTypeIdForPHP.ContentTypeID_PHP).getParser());
styleProvider = new LineStyleProviderForPHP();
}
public StyledText getTextWidget() {
return fText;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.widgets.Widget#dispose()
*/
@Override
public void dispose() {
editorStore.removePropertyChangeListener(this);
fDefaultBackground.dispose();
fDefaultForeground.dispose();
super.dispose();
}
}