/// <summary>
///
/// </summary>
/// <param name="ism"></param>
/// <returns></returns>
internal object AddImageAnnotation(UW.ClassroomPresenter.Network.Messages.Presentation.ImageSheetMessage ism)
{
if (ism.SheetCollectionSelector != UW.ClassroomPresenter.Network.Messages.Presentation.SheetMessage.SheetCollection.AnnotationSheets)
{
//We only support annotation sheets, not content sheets
return(null);
}
if ((ism.Parent == null) || !(ism.Parent is CP3Msgs.SlideInformationMessage))
{
warning += "Failed to locate slide for a image sheet. Ignoring Image Annotation. ";
return(null);
}
Guid slideId = (Guid)ism.Parent.TargetId;
TableOfContents.TocEntry tocEntry = toc.LookupBySlideId(slideId);
if (tocEntry == null)
{
warning += "Warning: Failed to find table of contents entry for a image annotation. Ignoring the annotation. ";
return(null);
}
//WebViewer wants things scaled to 500x500 (this was a CP2 convention).
Rectangle r = ((CP3Msgs.SheetMessage)ism).Bounds;
float fX = (float)r.X * 500F / getCurrentSlideWidth();
float fY = (float)r.Y * 500F / getCurrentSlideHeight();
Point scaledOrigin = new Point((int)Math.Round(fX), (int)Math.Round(fY));
int scaledWidth = r.Width * 500 / (int)getCurrentSlideWidth();
int scaledHeight = r.Height * 500 / (int)getCurrentSlideHeight();
RTImageAnnotation rtia = new RTImageAnnotation(scaledOrigin, (Guid)ism.TargetId, tocEntry.DeckId,
tocEntry.SlideIndex, scaledWidth, scaledHeight, ism.Img);
return(rtia);
}
/// <summary>
/// Send the current ink as a student submission slide
/// </summary>
/// <param name="sender">The object which sent this event, i.e. this class</param>
/// <param name="args">The parameters for the property</param>
private void HandleSendSubmission( object sender, PropertyEventArgs args )
{
if (this.m_SendingLock) return;
using (Synchronizer.Lock(SubmissionStatusModel.GetInstance().SyncRoot)) {
SubmissionStatusModel.GetInstance().SubmissionStatus = SubmissionStatusModel.Status.NotReceived;
}
///declare variables we will be using
UW.ClassroomPresenter.Network.Messages.Message pres, deck, slide, sheet;
// Construct the message to send
using( this.m_Model.Workspace.Lock() ) {
// Add the presentation
if( this.m_Model.Workspace.CurrentPresentation == null )
return;
///the presentation message we will be sending
pres = new PresentationInformationMessage( this.m_Model.Workspace.CurrentPresentation );
pres.Group = Groups.Group.Submissions;
//Add the current deck model that corresponds to this slide deck at the remote location
if( (~this.m_Model.Workspace.CurrentDeckTraversal) == null )
return;
using( Synchronizer.Lock( (~this.m_Model.Workspace.CurrentDeckTraversal).SyncRoot ) ) {
DeckModel dModel = (~this.m_Model.Workspace.CurrentDeckTraversal).Deck;
foreach( DeckPairModel match in this.m_Model.Workspace.DeckMatches ) {
///check to see if the decks are the same
if( match.LocalDeckTraversal.Deck == (~this.m_Model.Workspace.CurrentDeckTraversal).Deck )
dModel = match.RemoteDeckTraversal.Deck;
}
///create the deck message from this matched deck
deck = new DeckInformationMessage( dModel );
///make the deck a submission type deck.
deck.Group = Groups.Group.Submissions;
///tack this message onto the end.
pres.InsertChild( deck );
///add the particular slide we're on the to message.
if( (~this.m_Model.Workspace.CurrentDeckTraversal).Current == null )
return;
using( Synchronizer.Lock( (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide.SyncRoot ) ) {
// Add the Slide Message
slide = new StudentSubmissionSlideInformationMessage( (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide, Guid.NewGuid(), Guid.NewGuid() );
slide.Group = Groups.Group.Submissions;
deck.InsertChild( slide );
// Find the correct user ink layer to send
RealTimeInkSheetModel m_Sheet = null;
int count = 0;
foreach( SheetModel s in (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide.AnnotationSheets ) {
if( s is RealTimeInkSheetModel && (s.Disposition & SheetDisposition.Remote) == 0 ) {
m_Sheet = (RealTimeInkSheetModel)s;
count++;
}
}
// DEBUGGING
if( count > 1 )
Debug.Assert( true, "Bad Count", "Bad" );
// Find the existing ink on the slide
Ink extracted;
using( Synchronizer.Lock( m_Sheet.Ink.Strokes.SyncRoot ) ) {
// Ensure that each stroke has a Guid which will uniquely identify it on the remote side
foreach( Stroke stroke in m_Sheet.Ink.Strokes ) {
if( !stroke.ExtendedProperties.DoesPropertyExist( InkSheetMessage.StrokeIdExtendedProperty ) )
stroke.ExtendedProperties.Add( InkSheetMessage.StrokeIdExtendedProperty, Guid.NewGuid().ToString() );
}
// Extract all of the strokes
extracted = m_Sheet.Ink.ExtractStrokes( m_Sheet.Ink.Strokes, ExtractFlags.CopyFromOriginal );
}
// Find the Realtime ink on the slide
RealTimeInkSheetModel newSheet = null;
using( Synchronizer.Lock( m_Sheet.SyncRoot ) ) {
newSheet = new RealTimeInkSheetModel( Guid.NewGuid(), m_Sheet.Disposition | SheetDisposition.Remote, m_Sheet.Bounds );
using( Synchronizer.Lock( newSheet.SyncRoot ) ) {
newSheet.CurrentDrawingAttributes = m_Sheet.CurrentDrawingAttributes;
}
}
// Add a message to *create* the student's RealTimeInkSheetModel on the instructor client (without any ink).
sheet = SheetMessage.ForSheet(newSheet, SheetMessage.SheetCollection.AnnotationSheets);
sheet.Group = Groups.Group.Submissions;
slide.InsertChild(sheet);
//Scale the ink if necessary
if (ViewerStateModel.NonStandardDpi) {
extracted.Strokes.Transform(ViewerStateModel.DpiNormalizationSendMatrix);
}
// Add a message to copy the ink from the student's RealTimeInkSheetModel to the just-created sheet on the instructor.
sheet = new InkSheetStrokesAddedMessage(newSheet, (Guid)slide.TargetId, SheetMessage.SheetCollection.AnnotationSheets, extracted);
sheet.Group = Groups.Group.Submissions;
slide.InsertChild( sheet );
///Add each text and image sheet into the message as children of the ink sheet if it is public
foreach( SheetModel s in (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide.AnnotationSheets ) {
if( s is TextSheetModel && !(s is StatusLabel) && (s.Disposition & SheetDisposition.Remote) == 0) {
TextSheetModel text_sheet = (TextSheetModel) s;
text_sheet = (TextSheetModel) text_sheet.Clone();
///some ugly code here due to synchronization
bool sheet_is_public;
using (Synchronizer.Lock(text_sheet.SyncRoot)) {
sheet_is_public = text_sheet.IsPublic;
}
if (sheet_is_public) {
TextSheetMessage t_message = new TextSheetMessage(text_sheet, SheetMessage.SheetCollection.AnnotationSheets);
t_message.Group = Groups.Group.Submissions;
slide.InsertChild(t_message);
}
}
if (s is ImageSheetModel && !(s is StatusLabel) && (s.Disposition & SheetDisposition.Remote) == 0) {
ImageSheetModel image_sheet = (ImageSheetModel)s;
image_sheet = (ImageSheetModel) image_sheet.Clone();
ImageSheetMessage i_message = new ImageSheetMessage(image_sheet, SheetMessage.SheetCollection.AnnotationSheets);
i_message.Group = Groups.Group.Submissions;
slide.InsertChild(i_message);
}
}
//Lock the current sending.
this.LockSending();
// Send the message
this.m_Sender.Send(pres);
}
}
}
}
/// <summary>
/// Interpret a subset of CP3 message types
/// May return null, a single RTObject, or a List<object> containing multiple RTObjects
/// </summary>
/// <param name="m"></param>
/// <returns></returns>
private object ProcessMessage(UW.ClassroomPresenter.Network.Messages.Message m)
{
if (m is CP3Msgs.InkSheetStrokesAddedMessage)
{
return(m_Cache.AddInkSheetStrokesAdded((CP3Msgs.InkSheetStrokesAddedMessage)m));
}
else if (m is CP3Msgs.TableOfContentsEntryMessage)
{
return(m_Cache.AddTableOfContentsEntry((CP3Msgs.TableOfContentsEntryMessage)m));
}
else if (m is CP3Msgs.InkSheetStrokesDeletingMessage)
{
return(m_Cache.AddInkSheetStrokesDeleting((CP3Msgs.InkSheetStrokesDeletingMessage)m));
}
else if (m is CP3Msgs.SlideDeckTraversalMessage)
{
return(m_Cache.AddSlideDeckTraversal((CP3Msgs.SlideDeckTraversalMessage)m));
}
else if (m is CP3.Network.Messages.Network.InstructorCurrentDeckTraversalChangedMessage)
{
return(m_Cache.AddInstructorCurrentDeckTraversalChanged((CP3.Network.Messages.Network.InstructorCurrentDeckTraversalChangedMessage)m));
}
else if (m is CP3Msgs.RealTimeInkSheetInformationMessage)
{
m_Cache.AddRealTimeInkSheetInformation((CP3Msgs.RealTimeInkSheetInformationMessage)m);
}
else if (m is CP3Msgs.RealTimeInkSheetPacketsMessage)
{
return(m_Cache.AddRealTimeInkSheetPackets((CP3Msgs.RealTimeInkSheetPacketsMessage)m));
}
else if (m is CP3Msgs.RealTimeInkSheetStylusDownMessage)
{
m_Cache.AddRealTimeInkSheetStylusDown((CP3Msgs.RealTimeInkSheetStylusDownMessage)m);
}
else if (m is CP3Msgs.RealTimeInkSheetStylusUpMessage)
{
return(m_Cache.AddRealTimeInkSheetStylusUp((CP3Msgs.RealTimeInkSheetStylusUpMessage)m));
}
else if (m is CP3Msgs.SlideInformationMessage)
{
return(m_Cache.UpdateSlideInformation((CP3Msgs.SlideInformationMessage)m));
}
else if (m is CP3Msgs.DeckInformationMessage)
{
return(m_Cache.UpdateDeckInformation((CP3Msgs.DeckInformationMessage)m));
}
else if (m is CP3Msgs.TextSheetMessage)
{
return(m_Cache.AddTextSheet((CP3Msgs.TextSheetMessage)m));
}
else if (m is CP3Msgs.SheetRemovedMessage)
{
return(m_Cache.AddSheetRemoved((CP3Msgs.SheetRemovedMessage)m));
}
else if (m is CP3Msgs.PresentationMessage)
{
return(m_Cache.UpdatePresentaton((CP3Msgs.PresentationMessage)m));
}
else if (m is CP3Msgs.QuickPollSheetMessage)
{
//When a new quickpoll is started we get this with parents: QuickPollInformationMessage, Slide..,Deck..,Presentation..
//The SheetMessage base class has dimensions, but they appear to all be zeros.
return(m_Cache.AddQuickPollSheet((CP3Msgs.QuickPollSheetMessage)m));
}
else if (m is CP3Msgs.QuickPollResultInformationMessage)
{
//When there is a vote we get this with parents: QuickPollInformationMessage, Presentation..
//Contains a owner ID and a result string such as "C" or "Yes".
//Presumably the owner ID is the id of the client, so this is how we would know if a client changed his vote.
return(m_Cache.AddQuickResultInformation((CP3Msgs.QuickPollResultInformationMessage)m));
}
else if (m is CP3Msgs.ImageSheetMessage)
{
CP3Msgs.ImageSheetMessage ism = (CP3Msgs.ImageSheetMessage)m;
if (ism.SheetCollectionSelector ==
UW.ClassroomPresenter.Network.Messages.Presentation.SheetMessage.SheetCollection.AnnotationSheets)
{
//Annotation sheets are the ones added on-the-fly.
return(m_Cache.AddImageAnnotation(ism));
}
else
{
//Content sheets: These are found in slide broadcasts.
}
}
else if (m is CP3Msgs.QuickPollInformationMessage)
{
//We see one of these with a PresentationInformationMessage parent at various times. It also appears in
//the heirarchy along with some other messages. It's not clear if we need to pay attention to this
//because we have the QuickPollInformationMessage in the heirarchy with QuickPollSheetMessage.
//Debug.WriteLine("QuickPollInformationMessage");
}
else if (m is CP3Msgs.QuickPollResultRemovedMessage)
{
//Appears to be unused?
//Debug.WriteLine("QuickPollResultRemovedMessage");
}
else if (m is CP3Msgs.XPSPageSheetMessage)
{
//Debug.WriteLine("XPSPageSheetMessage");
}
return(null);
}