de.walware.statet.r.ui.REnvLabelProvider.java Source code

Introduction

Here is the source code for de.walware.statet.r.ui.REnvLabelProvider.java

Source

/*=============================================================================#
 # Copyright (c) 2012-2015 Stephan Wahlbrink (WalWare.de) 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:
 #     Stephan Wahlbrink - initial API and implementation
 #=============================================================================*/

package de.walware.statet.r.ui;

import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;

import de.walware.rj.renv.IRPkg;

import de.walware.statet.r.core.renv.IREnv;
import de.walware.statet.r.core.renv.IREnvConfiguration;
import de.walware.statet.r.core.renv.IRLibraryGroup;
import de.walware.statet.r.core.renv.IRLibraryLocation;

public class REnvLabelProvider extends StyledCellLabelProvider {

    public static String getSafeLabel(final IRLibraryLocation location) {
        String label = location.getLabel();
        if (label == null) {
            final IFileStore store = location.getDirectoryStore();
            if (store != null) {
                label = store.toString();
            }
        }
        if (label == null) {
            label = location.getDirectoryPath();
        }
        return label;
    }

    public REnvLabelProvider() {
    }

    @Override
    public void update(final ViewerCell cell) {
        final Object element = cell.getElement();
        if (element instanceof IREnv) {
            update(cell, (IREnv) element);
        } else if (element instanceof IREnvConfiguration) {
            update(cell, (IREnv) element);
        } else if (element instanceof IRLibraryGroup) {
            update(cell, (IRLibraryGroup) element);
        } else if (element instanceof IRLibraryLocation) {
            update(cell, (IRLibraryLocation) element);
        } else if (element instanceof IRPkg) {
            update(cell, (IRPkg) element);
        }
        finishUpdate(cell);
    }

    protected void finishUpdate(final ViewerCell cell) {
        super.update(cell);
    }

    protected void update(final ViewerCell cell, final IREnv rEnv) {
        cell.setImage(
                RUI.getImage((rEnv.getId().startsWith(IREnv.USER_REMOTE_ENV_ID_PREFIX)) ? RUI.IMG_OBJ_R_RUNTIME_ENV
                        : RUI.IMG_OBJ_R_RUNTIME_ENV));
        cell.setText(rEnv.getName());
    }

    protected void update(final ViewerCell cell, final IREnvConfiguration rConfig) {
        cell.setImage(RUI.getImage((rConfig.isRemote()) ? RUI.IMG_OBJ_R_RUNTIME_ENV : RUI.IMG_OBJ_R_RUNTIME_ENV));
        cell.setText(rConfig.getName());
    }

    protected void update(final ViewerCell cell, final IRLibraryGroup libGroup) {
        cell.setImage(RUI.getImage(RUI.IMG_OBJ_LIBRARY_GROUP));
        cell.setText(libGroup.getLabel());
    }

    protected void update(final ViewerCell cell, final IRLibraryLocation libLocation) {
        cell.setImage(RUI.getImage(RUI.IMG_OBJ_LIBRARY_LOCATION));
        cell.setText(getSafeLabel(libLocation));
    }

    protected void update(final ViewerCell cell, final IRPkg pkg) {
        cell.setImage(null);
        cell.setText(pkg.getName());
    }

}