com.nokia.carbide.search.system.internal.ui.text.FileLabelProvider.java Source code

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Here is the source code for com.nokia.carbide.search.system.internal.ui.text.FileLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2000, 2008 IBM Corporation, Nokia 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
 *     Juerg Billeter, juergbi@ethz.ch - 47136 Search view should show match objects
 *     Ulrich Etter, etteru@ethz.ch - 47136 Search view should show match objects
 *     Roman Fuchs, fuchsro@ethz.ch - 47136 Search view should show match objects
 *******************************************************************************/
package com.nokia.carbide.search.system.internal.ui.text;

import java.io.File;

import com.ibm.icu.text.MessageFormat;
import com.nokia.carbide.search.system.internal.ui.SearchMessages;
import com.nokia.carbide.search.system.ui.text.AbstractTextSearchResult;
import com.nokia.carbide.search.system.ui.text.AbstractTextSearchViewPage;

import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;

import org.eclipse.core.resources.IResource;

import org.eclipse.swt.graphics.Image;

import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.LabelProvider;

import org.eclipse.ui.model.WorkbenchLabelProvider;

public class FileLabelProvider extends LabelProvider {

    public static final int SHOW_LABEL = 1;
    public static final int SHOW_LABEL_PATH = 2;
    public static final int SHOW_PATH_LABEL = 3;

    private static final String fgSeparatorFormat = "{0} - {1}"; //$NON-NLS-1$

    private final WorkbenchLabelProvider fLabelProvider;
    private final AbstractTextSearchViewPage fPage;

    private int fOrder;
    private String[] fArgs = new String[2];

    public FileLabelProvider(AbstractTextSearchViewPage page, int orderFlag) {
        fLabelProvider = new WorkbenchLabelProvider();
        fOrder = orderFlag;
        fPage = page;
    }

    public void setOrder(int orderFlag) {
        fOrder = orderFlag;
    }

    public int getOrder() {
        return fOrder;
    }

    public String getResourceText(IResource resource) {
        String text = null;

        if (!resource.exists())
            text = SearchMessages.FileLabelProvider_removed_resource_label;

        else {
            IPath path = resource.getFullPath().removeLastSegments(1);
            if (path.getDevice() == null)
                path = path.makeRelative();
            if (fOrder == SHOW_LABEL || fOrder == SHOW_LABEL_PATH) {
                text = fLabelProvider.getText(resource);
                if (path != null && fOrder == SHOW_LABEL_PATH) {
                    fArgs[0] = text;
                    fArgs[1] = path.toString();
                    text = MessageFormat.format(fgSeparatorFormat, fArgs);
                }
            } else {
                if (path != null)
                    text = path.toString();
                else
                    text = ""; //$NON-NLS-1$
                if (fOrder == SHOW_PATH_LABEL) {
                    fArgs[0] = text;
                    fArgs[1] = fLabelProvider.getText(resource);
                    text = MessageFormat.format(fgSeparatorFormat, fArgs);
                }
            }
        }

        return text;
    }

    public String getFileStoreText(IFileStore fileStore) {
        String text = null;

        if (!fileStore.fetchInfo().exists())
            text = SearchMessages.FileLabelProvider_removed_resource_label;

        else {
            File file = null;
            try {
                file = fileStore.toLocalFile(EFS.NONE, null);
            } catch (CoreException e) {
                return null;
            }

            IPath path = (new Path(file.getAbsolutePath())).removeLastSegments(1);

            if (fOrder == SHOW_LABEL || fOrder == SHOW_LABEL_PATH) {
                text = file.getName();
                if (path != null && fOrder == SHOW_LABEL_PATH) {
                    fArgs[0] = text;
                    fArgs[1] = path.toString();
                    text = MessageFormat.format(fgSeparatorFormat, fArgs);
                }
            } else {
                if (path != null)
                    text = path.toString();
                else
                    text = ""; //$NON-NLS-1$
                if (fOrder == SHOW_PATH_LABEL) {
                    fArgs[0] = text;
                    fArgs[1] = file.getName();
                    text = MessageFormat.format(fgSeparatorFormat, fArgs);
                }
            }
        }

        return text;
    }

    public String getText(Object element) {
        String text = null;

        if (element instanceof IResource)
            text = getResourceText((IResource) element);
        else if (element instanceof IFileStore)
            text = getFileStoreText((IFileStore) element);
        else
            return null;

        int matchCount = 0;
        AbstractTextSearchResult result = fPage.getInput();
        if (result != null)
            matchCount = result.getMatchCount(element);
        if (matchCount <= 1)
            return text;
        String format = SearchMessages.FileLabelProvider_count_format;
        return MessageFormat.format(format, new Object[] { text, new Integer(matchCount) });
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
     */
    public Image getImage(Object element) {
        if (!(element instanceof IResource))
            return null;

        IResource resource = (IResource) element;
        Image image = fLabelProvider.getImage(resource);
        return image;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
     */
    public void dispose() {
        super.dispose();
        fLabelProvider.dispose();
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
     */
    public boolean isLabelProperty(Object element, String property) {
        return fLabelProvider.isLabelProperty(element, property);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
     */
    public void removeListener(ILabelProviderListener listener) {
        super.removeListener(listener);
        fLabelProvider.removeListener(listener);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
     */
    public void addListener(ILabelProviderListener listener) {
        super.addListener(listener);
        fLabelProvider.addListener(listener);
    }
}