name.nirav.evariablesview.ui.view.ViewLabelProvider.java Source code

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Here is the source code for name.nirav.evariablesview.ui.view.ViewLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2009 Nirav Thaker.
 * 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
 * 
 *******************************************************************************/
package name.nirav.evariablesview.ui.view;

import java.util.List;
import java.util.WeakHashMap;

import name.nirav.evariablesview.Activator;
import name.nirav.evariablesview.core.serializable.java.DebugVariable;
import name.nirav.opath.Variable;

import org.eclipse.debug.core.DebugException;
import org.eclipse.jdt.debug.core.IJavaModifiers;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;

class ViewLabelProvider extends LabelProvider {
    private WeakHashMap<String, Image> cache;

    public ViewLabelProvider() {
        cache = new WeakHashMap<String, Image>();
    }

    public String getText(Object obj) {
        if (obj instanceof DebugVariable) {
            DebugVariable var = (DebugVariable) obj;
            try {
                if ("char[]".equals(var.getType())) {
                    List<Variable> variables = var.getValue().getVariables();
                    StringBuilder builder = new StringBuilder();
                    for (Variable variable : variables) {
                        builder.append(variable.getValue().getValue());
                    }
                    return var.getName() + " = " + builder.toString() + " (char[])";
                }
            } catch (Exception e) {
            }
            return var.getName() + " = " + var.getValue().toString() + " (" + var.getType() + ")";
        }
        return obj.toString();
    }

    @Override
    public Image getImage(Object element) {
        if (element instanceof DebugVariable) {
            String icoName = "methdef_obj.gif";
            DebugVariable var = (DebugVariable) element;
            ImageDescriptor descriptor;
            try {
                IJavaModifiers modifiers = var.getModifiers();
                if (modifiers != null) {
                    if (modifiers.isFinal()) {
                        if (modifiers.isStatic())
                            icoName = "constant_co.gif";
                        else
                            icoName = "final_co.gif";
                    } else if (modifiers.isPrivate()) {
                        icoName = "private_co.gif";
                    } else if (modifiers.isStatic()) {
                        icoName = "static_co.gif";
                    } else if (modifiers.isProtected()) {
                        icoName = "protected_co.gif";
                    } else if (modifiers.isPublic()) {
                        icoName = "public_co.gif";
                    }
                }

                Image img = cache.get(icoName);
                if (img != null)
                    return img;

                descriptor = Activator.getImageDescriptor("icons/" + icoName);
                Image image = descriptor.createImage();
                cache.put(icoName, image);
                return image;
            } catch (DebugException e) {
                Activator.log(e);
            }
        }
        return null;
    }
}