bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogMarkerProperties.java - platform/eclipse.platform.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2004 IBM Corporation 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
  *******************************************************************************/

 package org.eclipse.ui.views.markers.internal;

 import java.lang.reflect.InvocationTargetException;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;

 import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspaceRunnable;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.jface.dialogs.ErrorDialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.TrayDialog;
 import org.eclipse.jface.operation.IRunnableWithProgress;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
 import org.eclipse.ui.internal.ide.StatusUtil;

 /**
  * Shows the properties of a new or existing marker
  */
 class DialogMarkerProperties extends TrayDialog {

     /**
      * The marker being shown, or <code>null</code> for a new marker
      */
     private IMarker marker = null;

     /**
      * The resource on which to create a new marker
      */
     private IResource resource = null;

     /**
      * The type of marker to be created
      */
     private String type = IMarker.MARKER;

     /**
      * The initial attributes to use when creating a new marker
      */
     private Map initialAttributes = null;

     /**
      * The text control for the Description field.
      */
     private Text descriptionText;

     /**
      * The control for the Creation Time field.
      */
     private Label creationTime;

     /**
      * The text control for the Resource field.
      */
     private Text resourceText;

     /**
      * The text control for the Folder field.
      */
     private Text folderText;

     /**
      * The text control for the Location field.
      */
     private Text locationText;

     /**
      * Dirty flag.  True if any changes have been made.
      */
     private boolean dirty;

     private String title;

     /**
      * Creates the dialog.  By default this dialog creates a new marker.
      * To set the resource and initial attributes for the new marker,
      * use <code>setResource</code> and <code>setInitialAttributes</code>.
      * To show or modify an existing marker, use <code>setMarker</code>.
      *
      * @param shell the parent shell
      */
     DialogMarkerProperties(Shell parentShell) {
         super(parentShell);
     }

     /**
      * Creates the dialog.  By default this dialog creates a new marker.
      * To set the resource and initial attributes for the new marker,
      * use <code>setResource</code> and <code>setInitialAttributes</code>.
      * To show or modify an existing marker, use <code>setMarker</code>.
      *
      * @param shell the parent shell
      * @param title the title of the dialog
      */
     DialogMarkerProperties(Shell parentShell, String title) {
         super(parentShell);
         this.title = title;
     }

     /**
      * @see org.eclipse.jface.window.Window#create()
      */
     public void create() {
         super.create();
     }

     /**
      * Sets the marker to show or modify.
      *
      * @param marker the marker, or <code>null</code> to create a new marker
      */
     void setMarker(IMarker marker) {
         this.marker = marker;
         if (marker != null) {
             try {
                 type = marker.getType();
             } catch (CoreException e) {
             }
         }
     }

     /**
      * Returns the marker being created or modified.
      * For a new marker, this returns <code>null</code> until
      * the dialog returns, but is non-null after.
      */
     IMarker getMarker() {
         return marker;
     }

     /**
      * Sets the resource to use when creating a new marker.
      * If not set, the new marker is created on the workspace root.
      */
     public void setResource(IResource resource) {
         this.resource = resource;
     }

     /**
      * Returns the resource to use when creating a new marker,
      * or <code>null</code> if none has been set.
      * If not set, the new marker is created on the workspace root.
      */
     IResource getResource() {
         return resource;
     }

     /**
      * Sets initial attributes to use when creating a new marker.
      * If not set, the new marker is created with default attributes.
      */
     void setInitialAttributes(Map initialAttributes) {
         this.initialAttributes = initialAttributes;
     }

     /**
      * Returns the initial attributes to use when creating a new marker,
      * or <code>null</code> if not set.
      * If not set, the new marker is created with default attributes.
      */
     Map getInitialAttributes() {
         if (initialAttributes == null) {
             initialAttributes = new HashMap();
         }
         return initialAttributes;
     }

     /**
      * Method declared on Window.
      */
     protected void configureShell(Shell newShell) {
         super.configureShell(newShell);
         if (title == null)
             newShell.setText(MarkerMessages.propertiesDialog_title);
         else
             newShell.setText(title);
     }

     /**
      * Method declared on Dialog.
      */
     protected Control createDialogArea(Composite parent) {
         //initialize resources/properties
         if (marker != null) {
             resource = marker.getResource();
             try {
                 initialAttributes = marker.getAttributes();
             } catch (CoreException e) {
             }
         } else if (resource == null) {
             resource = ResourcesPlugin.getWorkspace().getRoot();
         }

         Composite composite = (Composite) super.createDialogArea(parent);
         initializeDialogUnits(composite);
         createDescriptionArea(composite);
         if (marker != null) {
             createCreationTimeArea(composite);
         }
         createAttributesArea(composite);
         if (resource != null)
             createResourceArea(composite);
         updateDialogFromMarker();
         updateEnablement();
         return composite;
     }

     /**
      * Method createCreationTimeArea.
      * @param parent
      */
     private void createCreationTimeArea(Composite parent) {
         String creation = MarkerMessages
                 .propertiesDialog_creationTime_text;

         Font font = parent.getFont();
         Composite composite = new Composite(parent, SWT.NONE);
         GridLayout layout = new GridLayout();
         layout.numColumns = 2;
         composite.setLayout(layout);

         Label label = new Label(composite, SWT.NONE);
         label.setText(creation);
         label.setFont(font);

         creationTime = new Label(composite, SWT.NONE);
         creationTime.setFont(font);
     }

     /**
      * Creates the OK and Cancel buttons.
      */
     protected void createButtonsForButtonBar(Composite parent) {
         createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL,
                 true);
         createButton(parent, IDialogConstants.CANCEL_ID,
                 IDialogConstants.CANCEL_LABEL, false);
     }

     /**
      * Creates the area for the Description field.
      */
     private void createDescriptionArea(Composite parent) {
         Font font = parent.getFont();

         Composite composite = new Composite(parent, SWT.NONE);
         GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
         composite.setLayoutData(gridData);
         GridLayout layout = new GridLayout();
         layout.numColumns = 2;
         composite.setLayout(layout);


         Label label = new Label(composite, SWT.NONE);
         label.setText(MarkerMessages.propertiesDialog_description_text);
         label.setFont(font);
         int style = SWT.SINGLE | SWT.BORDER;
         descriptionText = new Text(composite, style);
         gridData = new GridData(GridData.FILL_HORIZONTAL);
         gridData.widthHint =  convertHorizontalDLUsToPixels(400);
         descriptionText.setLayoutData(gridData);
         descriptionText.setFont(font);

         descriptionText.addModifyListener(new ModifyListener() {
             public void modifyText(ModifyEvent e) {
                 markDirty();
             }
         });
     }

     /**
      * This method is intended to be overridden by subclasses. The attributes area is created between
      * the creation time area and the resource area.
      *
      * @param parent the parent composite
      */
     protected void createAttributesArea(Composite parent) {
     }

     /**
      * Creates the area for the Resource field.
      */
     private void createResourceArea(Composite parent) {
         Font font = parent.getFont();
         Composite composite = new Composite(parent, SWT.NONE);
         GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
         composite.setLayoutData(gridData);
         GridLayout layout = new GridLayout();
         layout.numColumns = 2;
         composite.setLayout(layout);

         Label resourceLabel = new Label(composite, SWT.NONE);
         resourceLabel.setText(MarkerMessages.propertiesDialog_resource_text);
         resourceLabel.setFont(font);
         resourceText = new Text(composite, SWT.SINGLE | SWT.WRAP
                 | SWT.READ_ONLY | SWT.BORDER);
         gridData = new GridData(GridData.FILL_HORIZONTAL);
         resourceText.setLayoutData(gridData);
         resourceText.setFont(font);

         Label folderLabel = new Label(composite, SWT.NONE);
         folderLabel.setText(MarkerMessages.propertiesDialog_folder_text);
         folderLabel.setFont(font);
         folderText = new Text(composite, SWT.SINGLE | SWT.WRAP | SWT.READ_ONLY
                 | SWT.BORDER);
         gridData = new GridData(GridData.FILL_HORIZONTAL);
         folderText.setLayoutData(gridData);
         folderText.setFont(font);

         Label locationLabel = new Label(composite, SWT.NONE);
         locationLabel.setText(MarkerMessages.propertiesDialog_location_text);
         locationLabel.setFont(font);
         locationText = new Text(composite, SWT.SINGLE | SWT.WRAP
                 | SWT.READ_ONLY | SWT.BORDER);
         gridData = new GridData(GridData.FILL_HORIZONTAL);
         locationText.setLayoutData(gridData);
         locationText.setFont(font);
     }

     /**
      * Updates the dialog from the marker state.
      */
     protected void updateDialogFromMarker() {
         if (marker == null) {
             updateDialogForNewMarker();
             return;
         }
         descriptionText.setText(Util.getProperty(IMarker.MESSAGE, marker));
         if (creationTime != null)
             creationTime.setText(Util.getCreationTime(marker));
         if (resourceText != null)
             resourceText.setText(Util.getResourceName(marker));
         if (folderText != null)
             folderText.setText(Util.getContainerName(marker));
         if (locationText != null) {
             String line = Util.getProperty(IMarker.LINE_NUMBER, marker);
             if (line.equals("")) //$NON-NLS-1$
                 locationText.setText(""); //$NON-NLS-1$
             else
                 locationText.setText(NLS.bind(MarkerMessages.label_lineNumber, line));
         }

         descriptionText.selectAll();
     }

     /**
      * Updates the dialog from the predefined attributes.
      */
     protected void updateDialogForNewMarker() {
         if (resource != null && resourceText != null && folderText != null) {
             resourceText.setText(resource.getName());

             IPath path = resource.getFullPath();
             int n = path.segmentCount() - 1; // n is the number of segments in container, not path
             if (n > 0) {
                 int len = 0;
                 for (int i = 0; i < n; ++i)
                     len += path.segment(i).length();
                 // account for /'s
                 if (n > 1)
                     len += n - 1;
                 StringBuffer sb = new StringBuffer(len);
                 for (int i = 0; i < n; ++i) {
                     if (i != 0)
                         sb.append('/');
                     sb.append(path.segment(i));
                 }
                 folderText.setText(sb.toString());
             }
         }

         if (initialAttributes != null) {
             Object description = initialAttributes.get(IMarker.MESSAGE);
             if (description != null && description instanceof String)
                 descriptionText.setText((String) description);
             descriptionText.selectAll();

             Object line = initialAttributes.get(IMarker.LINE_NUMBER);
             if (line != null && line instanceof Integer && locationText != null)
                 locationText.setText(
                     NLS.bind(MarkerMessages.label_lineNumber, line));
         }
     }

     /**
      * Method declared on Dialog
      */
     protected void okPressed() {
         if (marker == null || Util.isEditable(marker)) {
             saveChanges();
         }
         super.okPressed();
     }

     /**
      * Sets the dialog's dirty flag to <code>true</code>
      */
     protected void markDirty() {
         dirty = true;
     }

     /**
      * @return
      * <ul>
      * <li><code>true</code> if the dirty flag has been set to true.</li>
      * <li><code>false</code> otherwise.</li>
      * </ul>
      */
     protected boolean isDirty() {
         return dirty;
     }

     /**
      * Saves the changes made in the dialog if needed.
      * Creates a new marker if needed.
      * Updates the existing marker only if there have been changes.
      */
     private void saveChanges() {

         final CoreException[] coreExceptions = new CoreException[1];

         try {
             final Map attrs = getMarkerAttributes();

             PlatformUI.getWorkbench().getProgressService().busyCursorWhile(
                     new IRunnableWithProgress() {
                         /* (non-Javadoc)
                          * @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor)
                          */
                         public void run(IProgressMonitor monitor)
                                 throws InvocationTargetException,
                                 InterruptedException {
                             try {

                                 monitor.beginTask("", 100);//$NON-NLS-1$
                                 ResourcesPlugin.getWorkspace().run(
                                         new IWorkspaceRunnable() {
                                             public void run(
                                                     IProgressMonitor monitor)
                                                     throws CoreException {
                                                 if (marker == null)
                                                     createMarker(monitor);
                                                 if (isDirty())
                                                     updateMarker(monitor, attrs);
                                             }
                                         }, monitor);
                                 monitor.done();
                             } catch (CoreException e) {
                                 coreExceptions[0] = e;
                             }
                         }

                     });
         } catch (InvocationTargetException e) {
             IDEWorkbenchPlugin.log(e.getMessage(), StatusUtil.newStatus(
                     IStatus.ERROR, e.getMessage(), e));
             return;
         }

         catch (InterruptedException e) {
         }

         if (coreExceptions[0] != null)
             ErrorDialog
                     .openError(
                             getShell(),
                             MarkerMessages.Error, null, coreExceptions[0].getStatus());

     }

     /**
      * Creates or updates the marker.  Must be called within a workspace runnable.
      * @param monitor the monitor we report to.
      * @param attrs the attributes from the dialog
      */
     private void updateMarker(IProgressMonitor monitor, Map attrs)
             throws CoreException {
         // Set the marker attributes from the current dialog field values.
         // Do not use setAttributes(Map) as that overwrites any attributes
         // not covered by the dialog.

         int increment = 50 / attrs.size();

         for (Iterator i = attrs.keySet().iterator(); i.hasNext();) {
             monitor.worked(increment);
             String key = (String) i.next();
             Object val = attrs.get(key);
             marker.setAttribute(key, val);
         }
     }

     /**
      * Returns the marker attributes to save back to the marker,
      * based on the current dialog fields.
      */
     protected Map getMarkerAttributes() {
         Map attrs;
         if (initialAttributes == null) {
             attrs = initialAttributes;
         } else {
             attrs = new HashMap();
         }
         attrs.put(IMarker.MESSAGE, descriptionText.getText());
         return attrs;
     }

     /**
      * Create the marker and report progress
      * to the monitor.
      * @param monitor
      * @throws CoreException
      */
     private void createMarker(IProgressMonitor monitor) throws CoreException {
         if (resource == null)
             return;

         monitor.worked(10);
         marker = resource.createMarker(type);
         monitor.worked(40);
     }

     /**
      * Updates widget enablement for the dialog. Should be overridden by subclasses.
      */
     protected void updateEnablement() {
         descriptionText.setEditable(isEditable());
     }

     /**
      * @return
      * <ul>
      * <li><code>true</code> if the marker is editable or the dialog is creating a new marker.</li>
      * <li><code>false</code> if the marker is not editable.</li>
      * </ul>
      */
     protected boolean isEditable() {
         if (marker == null) {
             return true;
         }
         return Util.isEditable(marker);
     }

     /**
      * Sets the marker type when creating a new marker.
      *
      * @param type the marker type
      */
     void setType(String type) {
         this.type = type;
     }
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2004 IBM Corporation 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
	*******************************************************************************/

	package org.eclipse.ui.views.markers.internal;

	import java.lang.reflect.InvocationTargetException;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.Map;

	import org.eclipse.core.resources.IMarker;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspaceRunnable;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.jface.dialogs.ErrorDialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.dialogs.TrayDialog;
	import org.eclipse.jface.operation.IRunnableWithProgress;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
	import org.eclipse.ui.internal.ide.StatusUtil;

	/**
	* Shows the properties of a new or existing marker
	*/
	class DialogMarkerProperties extends TrayDialog {

	/**
	* The marker being shown, or <code>null</code> for a new marker
	*/
	private IMarker marker = null;

	/**
	* The resource on which to create a new marker
	*/
	private IResource resource = null;

	/**
	* The type of marker to be created
	*/
	private String type = IMarker.MARKER;

	/**
	* The initial attributes to use when creating a new marker
	*/
	private Map initialAttributes = null;

	/**
	* The text control for the Description field.
	*/
	private Text descriptionText;

	/**
	* The control for the Creation Time field.
	*/
	private Label creationTime;

	/**
	* The text control for the Resource field.
	*/
	private Text resourceText;

	/**
	* The text control for the Folder field.
	*/
	private Text folderText;

	/**
	* The text control for the Location field.
	*/
	private Text locationText;

	/**
	* Dirty flag. True if any changes have been made.
	*/
	private boolean dirty;

	private String title;

	/**
	* Creates the dialog. By default this dialog creates a new marker.
	* To set the resource and initial attributes for the new marker,
	* use <code>setResource</code> and <code>setInitialAttributes</code>.
	* To show or modify an existing marker, use <code>setMarker</code>.
	*
	* @param shell the parent shell
	*/
	DialogMarkerProperties(Shell parentShell) {
	super(parentShell);
	}

	/**
	* Creates the dialog. By default this dialog creates a new marker.
	* To set the resource and initial attributes for the new marker,
	* use <code>setResource</code> and <code>setInitialAttributes</code>.
	* To show or modify an existing marker, use <code>setMarker</code>.
	*
	* @param shell the parent shell
	* @param title the title of the dialog
	*/
	DialogMarkerProperties(Shell parentShell, String title) {
	super(parentShell);
	this.title = title;
	}

	/**
	* @see org.eclipse.jface.window.Window#create()
	*/
	public void create() {
	super.create();
	}

	/**
	* Sets the marker to show or modify.
	*
	* @param marker the marker, or <code>null</code> to create a new marker
	*/
	void setMarker(IMarker marker) {
	this.marker = marker;
	if (marker != null) {
	try {
	type = marker.getType();
	} catch (CoreException e) {
	}
	}
	}

	/**
	* Returns the marker being created or modified.
	* For a new marker, this returns <code>null</code> until
	* the dialog returns, but is non-null after.
	*/
	IMarker getMarker() {
	return marker;
	}

	/**
	* Sets the resource to use when creating a new marker.
	* If not set, the new marker is created on the workspace root.
	*/
	public void setResource(IResource resource) {
	this.resource = resource;
	}

	/**
	* Returns the resource to use when creating a new marker,
	* or <code>null</code> if none has been set.
	* If not set, the new marker is created on the workspace root.
	*/
	IResource getResource() {
	return resource;
	}

	/**
	* Sets initial attributes to use when creating a new marker.
	* If not set, the new marker is created with default attributes.
	*/
	void setInitialAttributes(Map initialAttributes) {
	this.initialAttributes = initialAttributes;
	}

	/**
	* Returns the initial attributes to use when creating a new marker,
	* or <code>null</code> if not set.
	* If not set, the new marker is created with default attributes.
	*/
	Map getInitialAttributes() {
	if (initialAttributes == null) {
	initialAttributes = new HashMap();
	}
	return initialAttributes;
	}

	/**
	* Method declared on Window.
	*/
	protected void configureShell(Shell newShell) {
	super.configureShell(newShell);
	if (title == null)
	newShell.setText(MarkerMessages.propertiesDialog_title);
	else
	newShell.setText(title);
	}

	/**
	* Method declared on Dialog.
	*/
	protected Control createDialogArea(Composite parent) {
	//initialize resources/properties
	if (marker != null) {
	resource = marker.getResource();
	try {
	initialAttributes = marker.getAttributes();
	} catch (CoreException e) {
	}
	} else if (resource == null) {
	resource = ResourcesPlugin.getWorkspace().getRoot();
	}

	Composite composite = (Composite) super.createDialogArea(parent);
	initializeDialogUnits(composite);
	createDescriptionArea(composite);
	if (marker != null) {
	createCreationTimeArea(composite);
	}
	createAttributesArea(composite);
	if (resource != null)
	createResourceArea(composite);
	updateDialogFromMarker();
	updateEnablement();
	return composite;
	}

	/**
	* Method createCreationTimeArea.
	* @param parent
	*/
	private void createCreationTimeArea(Composite parent) {
	String creation = MarkerMessages
	.propertiesDialog_creationTime_text;

	Font font = parent.getFont();
	Composite composite = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	composite.setLayout(layout);

	Label label = new Label(composite, SWT.NONE);
	label.setText(creation);
	label.setFont(font);

	creationTime = new Label(composite, SWT.NONE);
	creationTime.setFont(font);
	}

	/**
	* Creates the OK and Cancel buttons.
	*/
	protected void createButtonsForButtonBar(Composite parent) {
	createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL,
	true);
	createButton(parent, IDialogConstants.CANCEL_ID,
	IDialogConstants.CANCEL_LABEL, false);
	}

	/**
	* Creates the area for the Description field.
	*/
	private void createDescriptionArea(Composite parent) {
	Font font = parent.getFont();

	Composite composite = new Composite(parent, SWT.NONE);
	GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
	composite.setLayoutData(gridData);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	composite.setLayout(layout);


	Label label = new Label(composite, SWT.NONE);
	label.setText(MarkerMessages.propertiesDialog_description_text);
	label.setFont(font);
	int style = SWT.SINGLE \| SWT.BORDER;
	descriptionText = new Text(composite, style);
	gridData = new GridData(GridData.FILL_HORIZONTAL);
	gridData.widthHint = convertHorizontalDLUsToPixels(400);
	descriptionText.setLayoutData(gridData);
	descriptionText.setFont(font);

	descriptionText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	markDirty();
	}
	});
	}

	/**
	* This method is intended to be overridden by subclasses. The attributes area is created between
	* the creation time area and the resource area.
	*
	* @param parent the parent composite
	*/
	protected void createAttributesArea(Composite parent) {
	}

	/**
	* Creates the area for the Resource field.
	*/
	private void createResourceArea(Composite parent) {
	Font font = parent.getFont();
	Composite composite = new Composite(parent, SWT.NONE);
	GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
	composite.setLayoutData(gridData);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	composite.setLayout(layout);

	Label resourceLabel = new Label(composite, SWT.NONE);
	resourceLabel.setText(MarkerMessages.propertiesDialog_resource_text);
	resourceLabel.setFont(font);
	resourceText = new Text(composite, SWT.SINGLE \| SWT.WRAP
	\| SWT.READ_ONLY \| SWT.BORDER);
	gridData = new GridData(GridData.FILL_HORIZONTAL);
	resourceText.setLayoutData(gridData);
	resourceText.setFont(font);

	Label folderLabel = new Label(composite, SWT.NONE);
	folderLabel.setText(MarkerMessages.propertiesDialog_folder_text);
	folderLabel.setFont(font);
	folderText = new Text(composite, SWT.SINGLE \| SWT.WRAP \| SWT.READ_ONLY
	\| SWT.BORDER);
	gridData = new GridData(GridData.FILL_HORIZONTAL);
	folderText.setLayoutData(gridData);
	folderText.setFont(font);

	Label locationLabel = new Label(composite, SWT.NONE);
	locationLabel.setText(MarkerMessages.propertiesDialog_location_text);
	locationLabel.setFont(font);
	locationText = new Text(composite, SWT.SINGLE \| SWT.WRAP
	\| SWT.READ_ONLY \| SWT.BORDER);
	gridData = new GridData(GridData.FILL_HORIZONTAL);
	locationText.setLayoutData(gridData);
	locationText.setFont(font);
	}

	/**
	* Updates the dialog from the marker state.
	*/
	protected void updateDialogFromMarker() {
	if (marker == null) {
	updateDialogForNewMarker();
	return;
	}
	descriptionText.setText(Util.getProperty(IMarker.MESSAGE, marker));
	if (creationTime != null)
	creationTime.setText(Util.getCreationTime(marker));
	if (resourceText != null)
	resourceText.setText(Util.getResourceName(marker));
	if (folderText != null)
	folderText.setText(Util.getContainerName(marker));
	if (locationText != null) {
	String line = Util.getProperty(IMarker.LINE_NUMBER, marker);
	if (line.equals("")) //$NON-NLS-1$
	locationText.setText(""); //$NON-NLS-1$
	else
	locationText.setText(NLS.bind(MarkerMessages.label_lineNumber, line));
	}

	descriptionText.selectAll();
	}

	/**
	* Updates the dialog from the predefined attributes.
	*/
	protected void updateDialogForNewMarker() {
	if (resource != null && resourceText != null && folderText != null) {
	resourceText.setText(resource.getName());

	IPath path = resource.getFullPath();
	int n = path.segmentCount() - 1; // n is the number of segments in container, not path
	if (n > 0) {
	int len = 0;
	for (int i = 0; i < n; ++i)
	len += path.segment(i).length();
	// account for /'s
	if (n > 1)
	len += n - 1;
	StringBuffer sb = new StringBuffer(len);
	for (int i = 0; i < n; ++i) {
	if (i != 0)
	sb.append('/');
	sb.append(path.segment(i));
	}
	folderText.setText(sb.toString());
	}
	}

	if (initialAttributes != null) {
	Object description = initialAttributes.get(IMarker.MESSAGE);
	if (description != null && description instanceof String)
	descriptionText.setText((String) description);
	descriptionText.selectAll();

	Object line = initialAttributes.get(IMarker.LINE_NUMBER);
	if (line != null && line instanceof Integer && locationText != null)
	locationText.setText(
	NLS.bind(MarkerMessages.label_lineNumber, line));
	}
	}

	/**
	* Method declared on Dialog
	*/
	protected void okPressed() {
	if (marker == null \|\| Util.isEditable(marker)) {
	saveChanges();
	}
	super.okPressed();
	}

	/**
	* Sets the dialog's dirty flag to <code>true</code>
	*/
	protected void markDirty() {
	dirty = true;
	}

	/**
	* @return
	* <ul>
	* <li><code>true</code> if the dirty flag has been set to true.</li>
	* <li><code>false</code> otherwise.</li>
	* </ul>
	*/
	protected boolean isDirty() {
	return dirty;
	}

	/**
	* Saves the changes made in the dialog if needed.
	* Creates a new marker if needed.
	* Updates the existing marker only if there have been changes.
	*/
	private void saveChanges() {

	final CoreException[] coreExceptions = new CoreException[1];

	try {
	final Map attrs = getMarkerAttributes();

	PlatformUI.getWorkbench().getProgressService().busyCursorWhile(
	new IRunnableWithProgress() {
	/* (non-Javadoc)
	* @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor)
	*/
	public void run(IProgressMonitor monitor)
	throws InvocationTargetException,
	InterruptedException {
	try {

	monitor.beginTask("", 100);//$NON-NLS-1$
	ResourcesPlugin.getWorkspace().run(
	new IWorkspaceRunnable() {
	public void run(
	IProgressMonitor monitor)
	throws CoreException {
	if (marker == null)
	createMarker(monitor);
	if (isDirty())
	updateMarker(monitor, attrs);
	}
	}, monitor);
	monitor.done();
	} catch (CoreException e) {
	coreExceptions[0] = e;
	}
	}

	});
	} catch (InvocationTargetException e) {
	IDEWorkbenchPlugin.log(e.getMessage(), StatusUtil.newStatus(
	IStatus.ERROR, e.getMessage(), e));
	return;
	}

	catch (InterruptedException e) {
	}

	if (coreExceptions[0] != null)
	ErrorDialog
	.openError(
	getShell(),
	MarkerMessages.Error, null, coreExceptions[0].getStatus());

	}

	/**
	* Creates or updates the marker. Must be called within a workspace runnable.
	* @param monitor the monitor we report to.
	* @param attrs the attributes from the dialog
	*/
	private void updateMarker(IProgressMonitor monitor, Map attrs)
	throws CoreException {
	// Set the marker attributes from the current dialog field values.
	// Do not use setAttributes(Map) as that overwrites any attributes
	// not covered by the dialog.

	int increment = 50 / attrs.size();

	for (Iterator i = attrs.keySet().iterator(); i.hasNext();) {
	monitor.worked(increment);
	String key = (String) i.next();
	Object val = attrs.get(key);
	marker.setAttribute(key, val);
	}
	}

	/**
	* Returns the marker attributes to save back to the marker,
	* based on the current dialog fields.
	*/
	protected Map getMarkerAttributes() {
	Map attrs;
	if (initialAttributes == null) {
	attrs = initialAttributes;
	} else {
	attrs = new HashMap();
	}
	attrs.put(IMarker.MESSAGE, descriptionText.getText());
	return attrs;
	}

	/**
	* Create the marker and report progress
	* to the monitor.
	* @param monitor
	* @throws CoreException
	*/
	private void createMarker(IProgressMonitor monitor) throws CoreException {
	if (resource == null)
	return;

	monitor.worked(10);
	marker = resource.createMarker(type);
	monitor.worked(40);
	}

	/**
	* Updates widget enablement for the dialog. Should be overridden by subclasses.
	*/
	protected void updateEnablement() {
	descriptionText.setEditable(isEditable());
	}

	/**
	* @return
	* <ul>
	* <li><code>true</code> if the marker is editable or the dialog is creating a new marker.</li>
	* <li><code>false</code> if the marker is not editable.</li>
	* </ul>
	*/
	protected boolean isEditable() {
	if (marker == null) {
	return true;
	}
	return Util.isEditable(marker);
	}

	/**
	* Sets the marker type when creating a new marker.
	*
	* @param type the marker type
	*/
	void setType(String type) {
	this.type = type;
	}
	}