/// <summary>
/// Runs when the entire object graph has been deserialized.
/// </summary>
/// <param name="sender">The object that initiated the callback. The functionality for this parameter is not currently implemented.</param>
public void OnDeserialization(object sender)
{
if (Tracing.BinaryDeserializationSwitch.Enabled)
{
Trace.WriteLine("IDeserializationCallback of 'Model' called.");
}
Init();
#region Binding of connectors
Dictionary <Guid, Anchor> .Enumerator enumer = Anchors.GetEnumerator();
System.Collections.Generic.KeyValuePair <Guid, Anchor> pair;
Anchor anchor;
while (enumer.MoveNext())
{
pair = enumer.Current;
anchor = pair.Value;
if (anchor.Parent != Guid.Empty) //there's a parent connector
{
if (Anchors.ContainsKey(anchor.Parent))
{
Anchors.GetAnchor(anchor.Parent).Instance.AttachConnector(anchor.Instance);
}
}
}
//clean up the anchoring matrix
Anchors.Clear();
#endregion
}
/// <summary>
/// Called when the tool is activated.
/// </summary>
protected override void OnActivateTool()
{
if (Selection.SelectedItems.Count == 0)
{
return;
}
try
{
//Clear the Anchors otherwise subsequent Copy operations will raise an exception due to the fact that the Anchors class is a static helper class
Anchors.Clear();
//this will create a volatile collection of entities, they need to be unwrapped!
//I never managed to get things working by putting the serialized collection directly onto the Clipboad. Thanks to Leppie's suggestion it works by
//putting the Stream onto the Clipboard, which is weird but it works.
MemoryStream copy = Selection.SelectedItems.ToStream();
DataFormats.Format format = DataFormats.GetFormat(typeof(CopyTool).FullName);
IDataObject dataObject = new DataObject();
dataObject.SetData(format.Name, false, copy);
Clipboard.SetDataObject(dataObject, false);
}
catch (Exception exc)
{
throw new InconsistencyException("The Copy operation failed.", exc);
}
finally
{
DeactivateTool();
}
}
// ------------------------------------------------------------------
/// <summary>
/// Unwraps the specified collection.
/// </summary>
/// <param name="collection">The collection.</param>
// ------------------------------------------------------------------
public void Unwrap(CollectionBase <IDiagramEntity> collection)
{
if (collection == null)
{
return;
}
foreach (IDiagramEntity entity in collection)
{
Unwrap(entity);
}
//reconnect the connectors, just like the deserialization of a filed diagram
Dictionary <Guid, Anchor> .Enumerator enumer = Anchors.GetEnumerator();
System.Collections.Generic.KeyValuePair <Guid, Anchor> pair;
Anchor anchor;
while (enumer.MoveNext())
{
pair = enumer.Current;
anchor = pair.Value;
if (anchor.Parent != Guid.Empty) //there's a parent connector
{
if (Anchors.ContainsKey(anchor.Parent))
{
Anchors.GetAnchor(anchor.Parent).Instance.AttachConnector(anchor.Instance);
}
}
}
//clean up the anchoring matrix
Anchors.Clear();
}
void OnDeserializing(StreamingContext context)
{
if (Tracing.BinaryDeserializationSwitch.Enabled)
{
Trace.WriteLine("Starting deserializing the 'Model' class...");
}
//the anchors is a temporary collection of Uid's and parent entities to re-connect connectors
//to their parent. The serialization process does serialize parenting because you need on deserialization an
//instance in order to connect to it.
Anchors.Clear();
}
/// <summary>
/// Called when the tool is activated.
/// </summary>
protected override void OnActivateTool()
{
try
{
IDataObject data = Clipboard.GetDataObject();
string format = typeof(CopyTool).FullName;
if (data.GetDataPresent(format))
{
MemoryStream stream = data.GetData(format) as MemoryStream;
CollectionBase <IDiagramEntity> collection = null;
GenericFormatter <BinaryFormatter> f = new GenericFormatter <BinaryFormatter>();
//Anchors collection is a helper collection to re-connect connectors to their parent
Anchors.Clear();
//but is it actually a stream coming this application?
collection = f.Deserialize <CollectionBase <IDiagramEntity> >(stream);
if (collection != null)
{
#region Unwrap the bundle
this.Controller.Model.Unwrap(collection);
Rectangle rec = Utils.BoundingRectangle(collection);
rec.Inflate(30, 30);
this.Controller.View.Invalidate(rec);
#endregion
}
}
else if (data.GetDataPresent(DataFormats.Bitmap))
{
Bitmap bmp = data.GetData(DataFormats.Bitmap) as Bitmap;
if (bmp != null)
{
#region Unwrap into an image shape
//TODO: Insert the image shape here
#endregion
}
}
}
catch (Exception exc)
{
throw new InconsistencyException("The Copy operation failed.", exc);
}
finally
{
DeactivateTool();
}
}
// ------------------------------------------------------------------
/// <summary>
/// Called when the tool is activated.
/// </summary>
// ------------------------------------------------------------------
protected override void OnActivateTool()
{
if (this.Controller.Model.Selection.SelectedItems.Count == 0)
{
return;
}
try {
//Clear the Anchors otherwise subsequent Copy operations will
// raise an exception due to the fact that the Anchors class
// is a static helper class.
Anchors.Clear();
// First add the image to the Windows Clipboard so it can be
// pasted into other applications, like PowerPoint.
Bitmap image = this.Controller.Model.Selection.ToBitmap();
Clipboard.SetDataObject(image, true);
// This will create a volatile collection of entities, but they
// need to be unwrapped! I never managed to get things
// working by putting the serialized collection directly onto
// the Clipboad. Thanks to Leppie's suggestion it works by
// putting the Stream onto the Clipboard, which is weird but
// it works.
//MemoryStream copy = Selection.SelectedItems.ToStream();
//DataFormats.Format format =
// DataFormats.GetFormat(typeof(CopyTool).FullName);
//IDataObject dataObject = new DataObject();
//dataObject.SetData(format.Name, false, copy);
//Clipboard.SetDataObject(dataObject, false);
// Rather than placing the stream of entities on the Windows
// Clipboard, we're using our custom clipboard to keep the
// Windows clipboard for moving data across apps.
NetronClipboard.Clear();
NetronClipboard.Add(this.Controller.Model.Selection.SelectedItems.Copy());
}
catch (Exception exc) {
//throw new InconsistencyException(
// "The Copy operation failed.", exc);
MessageBox.Show("Unable to copy the selection.\n\n" +
"Error Message: " + exc.Message);
}
finally {
DeactivateTool();
}
}
/// <summary>
/// Called when the tool is activated.
/// </summary>
protected override void OnActivateTool()
{
try {
// Used to get a collection of entities from the
// NetronClipboard.
Type entitiesType = typeof(CollectionBase <IDiagramEntity>);
// First calculate the insertion point based on the
// current location of the cursor.
InsertionPoint = Point.Round(
Controller.View.ViewToWorld(
Controller.View.DeviceToView(
Controller.ParentControl.PointToClient(Cursor.Position))));
IDataObject data = Clipboard.GetDataObject();
string format = typeof(CopyTool).FullName;
if (data.GetDataPresent(format))
{
MemoryStream stream = data.GetData(format) as MemoryStream;
CollectionBase <IDiagramEntity> collection = null;
GenericFormatter <BinaryFormatter> f =
new GenericFormatter <BinaryFormatter>();
//Anchors collection is a helper collection to re-connect connectors to their parent
Anchors.Clear();
//but is it actually a stream coming this application?
collection = f.Deserialize <CollectionBase <IDiagramEntity> >(stream);
UnwrapBundle(collection);
}
else if (NetronClipboard.ContainsData(entitiesType))
{
CollectionBase <IDiagramEntity> collection =
(CollectionBase <IDiagramEntity>)NetronClipboard.Get(
entitiesType);
UnwrapBundle(collection.DeepCopy());
}
else if (data.GetDataPresent(DataFormats.Bitmap))
{
Bitmap bmp = data.GetData(DataFormats.Bitmap) as Bitmap;
if (bmp != null)
{
#region Unwrap into an image shape
//TODO: Insert the image shape here
ImageShape shape = new ImageShape();
shape.Image = bmp;
shape.Location = InsertionPoint;
Controller.Model.AddShape(shape);
#endregion
}
}
else if (data.GetDataPresent(DataFormats.Text))
{
string text = (string)data.GetData(typeof(string));
TextOnly textShape = new TextOnly(Controller.Model);
textShape.Text = text;
textShape.Location = InsertionPoint;
Controller.Model.AddShape(textShape);
}
}
catch (Exception exc) {
throw new InconsistencyException("The Paste operation failed.", exc);
}
finally {
DeactivateTool();
}
}