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/*******************************************************************************
* Copyright (c) 2011 Florian Thienel 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:
* Florian Thienel - initial API and implementation
*******************************************************************************/
package org.eclipse.vex.ui.internal;
import java.util.Arrays;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.vex.core.internal.css.IStyleSheetProvider;
import org.eclipse.vex.core.internal.css.StyleSheet;
import org.eclipse.vex.core.provisional.dom.DocumentContentModel;
import org.eclipse.vex.ui.internal.config.ConfigurationRegistry;
import org.eclipse.vex.ui.internal.config.DocumentType;
import org.eclipse.vex.ui.internal.config.Style;
import org.eclipse.vex.ui.internal.editor.VexDocumentContentModel;
import org.osgi.service.prefs.BackingStoreException;
import org.osgi.service.prefs.Preferences;
/**
* @author Florian Thienel
*/
public class VexPreferences implements IStyleSheetProvider {
public static final String INDENTATION_CHAR_CHOICE = "indetationCharChoice";
public static final String INDENTATION_CHAR_TAB = "\t";
public static final String INDENTATION_CHAR_SPACE = " ";
public static final String INDENTATION_SIZE = "indetationSize";
public static final String LINE_WIDTH = "lineWidth";
private static final String PREFERRED_STYLE_SUFFIX = ".style";
private final IPreferenceStore preferenceStore;
private final ConfigurationRegistry configurationRegistry;
public VexPreferences(final IPreferenceStore preferenceStore, final ConfigurationRegistry configurationRegistry) {
this.preferenceStore = preferenceStore;
this.configurationRegistry = configurationRegistry;
}
public void setPreferredStyleId(final DocumentType doctype, final String styleId) {
final Preferences preferences = InstanceScope.INSTANCE.getNode(VexPlugin.ID);
final String key = getStylePreferenceKey(doctype.getUniqueId());
preferences.put(key, styleId);
try {
preferences.flush();
} catch (final BackingStoreException e) {
VexPlugin.getDefault().log(IStatus.ERROR, Messages.getString("VexEditor.errorSavingStylePreference"), e); //$NON-NLS-1$
}
}
public String getPreferredStyleId(final DocumentType doctype) {
final Preferences preferences = InstanceScope.INSTANCE.getNode(VexPlugin.ID);
final String preferredStyleId = preferences.get(getStylePreferenceKey(doctype.getUniqueId()), null);
return preferredStyleId;
}
private static String getStylePreferenceKey(final String publicId) {
return publicId + PREFERRED_STYLE_SUFFIX;
}
public Style getPreferredStyle(final DocumentType doctype) {
return configurationRegistry.getStyle(doctype, getPreferredStyleId(doctype));
}
public String getIndentationPattern() {
final String indentationChar = preferenceStore.getString(INDENTATION_CHAR_CHOICE);
final int indentationSize = preferenceStore.getInt(INDENTATION_SIZE);
final char[] pattern = new char[indentationSize];
Arrays.fill(pattern, indentationChar.charAt(0));
return new String(pattern);
}
public int getLineWidth() {
return preferenceStore.getInt(LINE_WIDTH);
}
@Override
public StyleSheet getStyleSheet(final DocumentContentModel documentContentModel) {
Style style = null;
if (documentContentModel instanceof VexDocumentContentModel) {
// We only support the VexDocumentContentModel
// If there will ever be another DocumentContentModel implememntation, it will
// have to define it's own method for resolving styles
style = getPreferredStyle(((VexDocumentContentModel) documentContentModel).getDocumentType());
}
if (style == null) {
return StyleSheet.NULL;
}
return style.getStyleSheet();
}
}
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