public SlideImageMgr(PresenterWireFormatType format, int width, int height)
{
this.format = format;
currentSlide = new SlideReference();
this.exportWidth = width;
this.exportHeight = height;
//Set the default background colors
if ((format == PresenterWireFormatType.CPCapability) ||
(format == PresenterWireFormatType.CPNav))
{
currentSlide.SetBGColor(Color.PapayaWhip);
}
else
{
currentSlide.SetBGColor(Color.White);
}
if (format == PresenterWireFormatType.CP3)
{
cp3Mgr = new CP3Manager.CP3Manager();
}
slideImages = new Hashtable();
orgToResource = new Hashtable();
nullSlide = null;
}
/// <summary>
/// Return the raw bitmap representing the current presentation state
/// </summary>
/// <param name="frame"></param>
public void GetCurrentFrame(out BufferChunk frame)
{
frame = null;
if ((currentSlide.IsSet) && (slideImages.ContainsKey(currentSlide.GetStringHashCode())))
{
frame = ((SlideImage)slideImages[currentSlide.GetStringHashCode()]).GenerateFrame(currentSlide.Size, currentSlide.BGColor, this.exportWidth, this.exportHeight);
}
else
{
//If we don't have a current slide, return a blank frame.
if (nullSlide == null)
{
nullSlide = new SlideImage();
}
frame = nullSlide.GenerateFrame(1.0, Color.PapayaWhip, this.exportWidth, this.exportHeight);
}
}
private void acceptArchiveRTNavFrame(object o)
{
if (o is ArchiveRTNav.RTUpdate)
{
//Navigation and slide size changes
ArchiveRTNav.RTUpdate rtu = (ArchiveRTNav.RTUpdate)o;
String key = SlideReference.MakeKey(rtu.DeckGuid, rtu.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
if (!rtu.DeckAssociation.Equals(Guid.Empty))
{
//Student submission or quickpoll
//The slide image may come from a presentation slide. Here we want to store the current slide image.
String refKey = SlideReference.MakeKey(rtu.DeckAssociation, rtu.SlideAssociation);
if (slideImages.ContainsKey(refKey))
{
SlideImage sourceImage = (SlideImage)slideImages[refKey];
bool isWhiteboard = true;
Image img = sourceImage.GetSlideImage(this.currentSlide.BGColor, out isWhiteboard);
((SlideImage)slideImages[key]).SetImage(img, isWhiteboard);
}
}
currentSlide.SetCPReference(rtu.DeckGuid, rtu.SlideIndex);
currentSlide.SetSize(rtu.SlideSize);
currentSlide.SetBGColor(rtu.BackgroundColor);
}
else if (o is ArchiveRTNav.RTDrawStroke)
{
ArchiveRTNav.RTDrawStroke rtds = (ArchiveRTNav.RTDrawStroke)o;
String key = SlideReference.MakeKey(rtds.DeckGuid, rtds.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).AddInk(rtds.Ink, rtds.Guid);
}
else if (o is ArchiveRTNav.RTDeleteStroke)
{
ArchiveRTNav.RTDeleteStroke rtds = (ArchiveRTNav.RTDeleteStroke)o;
String key = SlideReference.MakeKey(rtds.DeckGuid, rtds.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).RemoveInk(rtds.Guid);
}
else if (o is ArchiveRTNav.RTTextAnnotation)
{
ArchiveRTNav.RTTextAnnotation rtta = (ArchiveRTNav.RTTextAnnotation)o;
String key = SlideReference.MakeKey(rtta.DeckGuid, rtta.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).AddTextAnnotation(rtta.Text, rtta.Origin, rtta.Guid, rtta.Font, rtta.Color, rtta.Height, rtta.Width);
}
else if (o is ArchiveRTNav.RTImageAnnotation)
{
ArchiveRTNav.RTImageAnnotation rtia = (ArchiveRTNav.RTImageAnnotation)o;
String key = SlideReference.MakeKey(rtia.DeckGuid, rtia.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).AddImageAnnotation(rtia.Guid, rtia.Height, rtia.Width, rtia.Origin, rtia.Img);
}
else if (o is ArchiveRTNav.RTDeleteTextAnnotation)
{
ArchiveRTNav.RTDeleteTextAnnotation rtdta = (ArchiveRTNav.RTDeleteTextAnnotation)o;
String key = SlideReference.MakeKey(rtdta.DeckGuid, rtdta.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).RemoveTextAnnotation(rtdta.Guid);
}
else if (o is ArchiveRTNav.RTDeleteAnnotation)
{
ArchiveRTNav.RTDeleteAnnotation rtda = (ArchiveRTNav.RTDeleteAnnotation)o;
String key = SlideReference.MakeKey(rtda.DeckGuid, rtda.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).RemoveAnnotation(rtda.Guid);
}
else if (o is ArchiveRTNav.RTEraseLayer)
{
ArchiveRTNav.RTEraseLayer rtel = (ArchiveRTNav.RTEraseLayer)o;
String key = SlideReference.MakeKey(rtel.DeckGuid, rtel.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).RemoveAllInk();
}
else if (o is ArchiveRTNav.RTEraseAllLayers)
{
ArchiveRTNav.RTEraseAllLayers rteal = (ArchiveRTNav.RTEraseAllLayers)o;
if (rteal.DeckGuid != Guid.Empty)
{
foreach (String key in slideImages.Keys)
{
if (key.StartsWith(rteal.DeckGuid.ToString()))
{
((SlideImage)slideImages[key]).RemoveAllInk();
}
}
}
}
else if (o is ArchiveRTNav.RTQuickPoll)
{
ArchiveRTNav.RTQuickPoll rtqp = (ArchiveRTNav.RTQuickPoll)o;
String key = SlideReference.MakeKey(rtqp.DeckGuid, rtqp.SlideIndex);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).UpdateQuickPoll(rtqp);
}
else
{
Debug.WriteLine("Slide Image Manager does not handle type: " + o.GetType().ToString());
}
//Notice that CP3 doesn't support scrolling mylar, so we don't bother with it here.
}
/// <summary>
/// Frames sent by Classroom Presenter 2.0 in Native stand-alone mode
/// </summary>
/// <param name="rtobj"></param>
private void acceptCPNavFrame(object rtobj)
{
if (rtobj is PresenterNav.CPPageUpdate)
{
/// Presenter sends these once per second. These indicate current slide index, deck index
/// and deck type. Just use this to update the current slide pointer
PresenterNav.CPPageUpdate cppu = (PresenterNav.CPPageUpdate)rtobj;
currentSlide.SetCPReference(cppu.DocRef.GUID, cppu.PageRef.Index);
//CPPageUpdate has a deck type too, but we're not using it for now.
//DumpPageUpdate((PresenterNav.CPPageUpdate)rtobj);
}
else if (rtobj is PresenterNav.CPScrollLayer)
{
///Presenter sends these once per second, and during a scroll operation.
///Set the scroll position for the slide in question.
PresenterNav.CPScrollLayer cpsl = (PresenterNav.CPScrollLayer)rtobj;
String key = SlideReference.MakeKey(cpsl.DocRef.GUID, cpsl.PageRef.Index);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).SetScrollPos(cpsl.ScrollPosition, cpsl.ScrollExtent);
//DumpScrollLayer((PresenterNav.CPScrollLayer)rtobj);
}
else if (rtobj is PresenterNav.CPDeckCollection)
{
//Presenter sends this once per second. The only thing we want to get from
//this is the slide size (former ScreenConfiguration). This is a 'global' setting, not a per-slide setting.
PresenterNav.CPDeckCollection cpdc = (PresenterNav.CPDeckCollection)rtobj;
currentSlide.SetSize(cpdc.ViewPort.SlideSize);
//DumpDeckCollection((PresenterNav.CPDeckCollection)rtobj);
//The CPDeckCollection also has slide titles, but we don't care about them here.
}
else if (rtobj is WorkSpace.BeaconPacket) //the original beacon
{
//Presenter sends this once per second. The only thing we want to get from
//this is the background color. This is another global presentation setting.
WorkSpace.BeaconPacket bp = (WorkSpace.BeaconPacket)rtobj;
currentSlide.SetBGColor(bp.BGColor);
//DumpBeacon((BeaconPacket)rtobj);
}
else if (rtobj is PresenterNav.CPDrawStroke) //add a stroke
{
PresenterNav.CPDrawStroke cpds = (PresenterNav.CPDrawStroke)rtobj;
String key = SlideReference.MakeKey(cpds.DocRef.GUID, cpds.PageRef.Index);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).AddInk(cpds.Stroke.Ink, cpds.Stroke.Guid);
}
else if (rtobj is PresenterNav.CPDeleteStroke) //delete one stroke
{
PresenterNav.CPDeleteStroke cpds = (PresenterNav.CPDeleteStroke)rtobj;
String key = SlideReference.MakeKey(cpds.DocRef.GUID, cpds.PageRef.Index);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).RemoveInk(cpds.Guid);
}
else if (rtobj is PresenterNav.CPEraseLayer) //clear all strokes from one page
{
PresenterNav.CPEraseLayer cpel = (PresenterNav.CPEraseLayer)rtobj;
String key = SlideReference.MakeKey(cpel.DocRef.GUID, cpel.PageRef.Index);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
((SlideImage)slideImages[key]).RemoveAllInk();
}
else if (rtobj is PresenterNav.CPEraseAllLayers) //clear all strokes from a deck
{
PresenterNav.CPEraseAllLayers cpeal = (PresenterNav.CPEraseAllLayers)rtobj;
if (cpeal.DocRef.GUID != Guid.Empty)
{
foreach (String key in slideImages.Keys)
{
if (key.StartsWith(cpeal.DocRef.GUID.ToString()))
{
((SlideImage)slideImages[key]).RemoveAllInk();
}
}
}
}
else if (rtobj is WorkSpace.OverlayMessage) //Student submission received
{
//These are seen when Student Submissions are submitted to the instructor, not when they are displayed.
WorkSpace.OverlayMessage om = (WorkSpace.OverlayMessage)rtobj;
String key = SlideReference.MakeKey(om.FeedbackDeck.GUID, om.SlideIndex.Index);
if (!slideImages.ContainsKey(key))
{
slideImages.Add(key, new SlideImage());
}
//The slide image comes from a presentation slide. Here we want to store the current slide image.
String refKey = SlideReference.MakeKey(om.PresentationDeck.GUID, om.PDeckSlideIndex.Index);
if (slideImages.ContainsKey(refKey))
{
SlideImage sourceImage = (SlideImage)slideImages[refKey];
bool isWhiteboard = true;
Image img = sourceImage.GetSlideImage(this.currentSlide.BGColor, out isWhiteboard);
((SlideImage)slideImages[key]).SetImage(img, isWhiteboard);
}
//Add the ink from the student submission
//OtherScribble appears to contain both student ink and any pre-existing instructor ink, but I think it
//used to be in UserScribble. Let's include all ink in both scribbles.
((SlideImage)slideImages[key]).AddInk(((SlideViewer.InkScribble)om.SlideOverlay.UserScribble).Ink);
((SlideImage)slideImages[key]).AddInk(((SlideViewer.InkScribble)om.SlideOverlay.OtherScribble).Ink);
}
else if (rtobj is WorkSpace.ScreenConfigurationMessage)
{
// nothing to do here.
}
else
{
Type t = rtobj.GetType();
Debug.WriteLine("Unhandled Type:" + t.ToString());
}
}
