Bug 300846 Add "Resolve Values" switch to Path Variables property page
HEAD Table showing path variables for a resource has 3 columns: Name, Value and Resolved Value. Given the fact that values are rather long the third column is hardly visible. My suggestion is to remove the third column and add a switch to resolve variables in the second column. I'll put up a mockup in a minute...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/PathVariablesGroup.java
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;
import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
import org.eclipse.ui.plugin.AbstractUIPlugin;
/**
 * A widget group that displays path variables. 
 * Includes buttons to edit, remove existing variables and create new ones.
 * 
 * @since 2.1
 */
public class PathVariablesGroup {
    /**
     * Simple data structure that holds a path variable name/value pair.
     */
    public static class PathVariableElement {
        /**
         * The name of the element.
         */
        public String name;
        /**
         * The path of the element.
         */
        public IPath path;
    }
    
    private static final int SIZING_SELECTION_PANE_WIDTH = 400;
    
    private Shell shell;
    private Label variableLabel;