/// <summary>
/// Opens the binary-saved diagram
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="control">The control.</param>
public static bool Open(string fileName, DiagramControlBase control)
{
FileStream fs = null;
try {
fs = File.OpenRead(fileName);
}
catch (System.IO.DirectoryNotFoundException exc) {
System.Windows.Forms.MessageBox.Show(exc.Message);
}
catch (System.IO.FileLoadException exc) {
System.Windows.Forms.MessageBox.Show(exc.Message);
}
catch (System.IO.FileNotFoundException exc) {
System.Windows.Forms.MessageBox.Show(exc.Message);
}
catch (Exception exc) {
throw new Exception("Non-CLS exception caught.", exc);
}
//donnot open anything if filestream is not there
if (fs == null)
{
return(false);
}
try {
GenericFormatter <BinaryFormatter> f = new GenericFormatter <BinaryFormatter>();
//one-line deserialization, no bits 'nd bytes necessary....C# is amazing...
Document document = f.Deserialize <Document>(fs);
if (document == null)
{
throw new InconsistencyException("The deserialization return 'null'.");
}
//call the standard method at the control level to attach a new document
//In principle you could create a document programmatically and attach it this way as well.
control.AttachToDocument(document);
return(true);
}
catch (SerializationException exc) {
MessageBox.Show(exc.Message);
}
catch (System.Reflection.TargetInvocationException exc) {
MessageBox.Show(exc.Message, "BinarySerializer.Open");
}
catch (Exception exc) {
MessageBox.Show(exc.Message, "BinarySerializer.Open");
}
finally {
if (fs != null)
{
fs.Close();
}
}
return(false);
}
/// <summary>
/// This method creates first a deep copy of the collection and puts the result in a <see cref="MemoryStream"/>.
/// See the <see cref="CopyTool"/> for details.
/// </summary>
/// <returns></returns>
public MemoryStream ToStream()
{
try
{
MemoryStream stream = new MemoryStream();
GenericFormatter <BinaryFormatter> f = new GenericFormatter <BinaryFormatter>();
f.Serialize(stream, this);
return(stream);
}
catch (Exception exc)
{
throw new InconsistencyException("The ToStream() operation failed.", exc);
}
}
/// <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>
/// Returns a deep copy of this collection.
/// <remarks>The returned collection is not attached to the <see cref="Model"/>
/// and is as such on an in-memory collection of instances. You need to 'unwrap' the collection
/// in the model and, to make it visible, deploy it in the paintables collection of the model.
/// </remarks>
/// </summary>
/// <returns></returns>
public CollectionBase <T> DeepCopy()
{
/* This doesn't work seemingly....
* if (!typeof(T).IsSerializable)
* throw new InconsistencyException("The generic type on which the collection is based is not serializable, the collection cannot generate a deep copy.");
*/
try {
CollectionBase <T> newobj = null;
MemoryStream stream = new MemoryStream();
GenericFormatter <BinaryFormatter> f = new GenericFormatter <BinaryFormatter>();
f.Serialize(stream, this);
stream.Seek(0, SeekOrigin.Begin);
newobj = f.Deserialize <CollectionBase <T> >(stream);
stream.Close();
return(newobj);
}
catch (Exception exc) {
throw new InconsistencyException("The copy operation failed.", exc);
}
}
/// <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();
}
}
