protected override void OnClick(EventArgs e)
{
base.OnClick(e);
// Change the name of whiteboard according to the number of it
string wbname = "WhiteBoard "+ (++UW.ClassroomPresenter.Viewer.ViewerForm.white_board_num).ToString();
// NOTE: This code is duplicated in DeckNavigationToolBarButtons.WhiteboardToolBarButton and DeckMessage.UpdateContext
DeckModel deck = new DeckModel(Guid.NewGuid(), DeckDisposition.Whiteboard, wbname);
using (Synchronizer.Lock(deck.SyncRoot)) {
SlideModel slide = new SlideModel(Guid.NewGuid(), new LocalId(), SlideDisposition.Empty, UW.ClassroomPresenter.Viewer.ViewerForm.DEFAULT_SLIDE_BOUNDS);
deck.InsertSlide(slide);
using (Synchronizer.Lock(deck.TableOfContents.SyncRoot)) {
TableOfContentsModel.Entry entry = new TableOfContentsModel.Entry(Guid.NewGuid(), deck.TableOfContents, slide);
deck.TableOfContents.Entries.Add(entry);
}
}
DeckTraversalModel traversal = new SlideDeckTraversalModel(Guid.NewGuid(), deck);
using (this.m_Model.Workspace.Lock()) {
if ((~this.m_Model.Workspace.CurrentPresentation) != null) {
using (Synchronizer.Lock((~this.m_Model.Workspace.CurrentPresentation).SyncRoot)) {
(~this.m_Model.Workspace.CurrentPresentation).DeckTraversals.Add(traversal);
}
} else {
this.m_Model.Workspace.DeckTraversals.Add(traversal);
}
}
}
/// <summary>
/// Create a slide model from a powerpoint slide
/// </summary>
/// <param name="pageSetup"></param>
/// <param name="pptpm"></param>
/// <param name="deck"></param>
/// <param name="tempFileCollection"></param>
/// <param name="dirpath"></param>
/// <param name="currentSlide"></param>
/// <returns></returns>
private static SlideModel CreateSlide(PowerPoint.PageSetup pageSetup, PPTPaneManagement.PPTPaneManager pptpm, DeckModel deck, TempFileCollection tempFileCollection, string dirpath, PowerPoint._Slide currentSlide)
{
int slideWidth = (int)pageSetup.SlideWidth; //Standard = 720 => 6000
int slideHeight = (int)pageSetup.SlideHeight; //Standard = 540 => 4500
float emfWidth = slideWidth * 25 / 3;
float emfHeight = slideHeight * 25 / 3;
// Adding an empty textbox in the upper left corner of the the
// slide before layers are exported works around a common
// issue with shape positioning. Without this, text shapes often get pushed too far
// to the right and down due to some extra padding that PPT inserts on
// the top and left of the exported images. It doesn't pad the top left of an
// empty text box, so the positioning is corrected.
// This isn't perfect since the workaround should probably be applied to
// every layer with text boxes.
currentSlide.Shapes.AddTextbox(Core.MsoTextOrientation.msoTextOrientationHorizontal, 0, 0, 1, 1);
PowerPoint.Shapes currentShapes = currentSlide.Shapes;
List<TaggedShape> taggedShapeList = PPTDeckIO.BuildTaggedShapeList(currentShapes, pptpm);
//Create a new SlideModel
SlideModel newSlideModel = new SlideModel(Guid.NewGuid(), new LocalId(), SlideDisposition.Empty, new Rectangle(0, 0, slideWidth, slideHeight));
//Lock it
using (Synchronizer.Lock(newSlideModel.SyncRoot)) {
//Set the slide's title
newSlideModel.Title = PPTDeckIO.FindSlideTitle(taggedShapeList, currentSlide);
PPTDeckIO.MakeShapesInvisible(currentShapes);
//Create the Background image
//Generate a new filename
string filename = PPTDeckIO.GenerateFilename();
bool bitmapMode = true;
if (bitmapMode) {
filename = dirpath + "\\" + filename + ".png";
currentSlide.Export(filename, "PNG", 0, 0);
// Need to also export as EMF to get the size of the slide in inches
currentSlide.Export(filename + "_TEMP", "EMF", 0, 0);
tempFileCollection.AddFile( filename + "_TEMP", false );
}
else {
filename = dirpath + "\\" + filename + ".emf";
currentSlide.Export(filename, "EMF", 0, 0);
}
tempFileCollection.AddFile(filename, false);
//Compute the MD5 of the BG
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
MD5 md5Provider = new MD5CryptoServiceProvider();
byte[] md5 = md5Provider.ComputeHash(fs);
fs.Seek(0, SeekOrigin.Begin);
Image image = Image.FromStream(fs);
if (bitmapMode) {
image = DisassociateBitmap(image);
}
fs.Close();
// Open the EMF version if we used a bitmap to get the conversion
if( bitmapMode ) {
FileStream fsEMF = new FileStream( filename + "_TEMP", FileMode.Open, FileAccess.Read );
Image image_emf = Image.FromStream( fsEMF );
emfWidth = image_emf.Width;
emfHeight = image_emf.Height;
fsEMF.Close();
image_emf.Dispose();
} else {
emfWidth = image.Width;
emfHeight = image.Height;
}
//Create the ImageSheet
ImageSheetModel sheet = new ImageSheetModel(deck, Guid.NewGuid(), Model.Presentation.SheetDisposition.Background,
new Rectangle(0, 0, slideWidth, slideHeight), (ByteArray)md5, 1);
//Add the ImageSheet to the Slide
newSlideModel.ContentSheets.Add(sheet);
//Add the Image+MD5 to the deck
deck.AddSlideContent((ByteArray)md5, image);
// Restore visibility - this makes everything visible - a bug?
PPTDeckIO.MakeShapesVisible(currentShapes);
List<List<TaggedShape>> layerList = PPTDeckIO.SeparateIntoLayers(taggedShapeList);
int startHeight = 2;
foreach (List<TaggedShape> layer in layerList)
PPTDeckIO.ProcessLayer( layer, tempFileCollection, currentShapes, deck, newSlideModel,
slideWidth/emfWidth, slideHeight/emfHeight, startHeight++ );
//Add SlideModel to the deck
deck.InsertSlide(newSlideModel);
}
return newSlideModel;
}
/// <summary>
/// Create a slide model from a powerpoint slide
/// </summary>
/// <param name="pageSetup"></param>
/// <param name="pptpm"></param>
/// <param name="deck"></param>
/// <param name="tempFileCollection"></param>
/// <param name="dirpath"></param>
/// <param name="currentSlide"></param>
/// <returns></returns>
private static SlideModel CreateSlide(PowerPoint.PageSetup pageSetup, PPTPaneManagement.PPTPaneManager pptpm, DeckModel deck, TempFileCollection tempFileCollection, string dirpath, PowerPoint._Slide currentSlide)
{
int slideWidth = (int)pageSetup.SlideWidth; //Standard = 720 => 6000
int slideHeight = (int)pageSetup.SlideHeight; //Standard = 540 => 4500
float emfWidth = slideWidth * 25 / 3;
float emfHeight = slideHeight * 25 / 3;
PowerPoint.Shapes currentShapes = currentSlide.Shapes;
List<TaggedShape> taggedShapeList = PPTDeckIO.BuildTaggedShapeList(currentShapes, pptpm);
//Create a new SlideModel
SlideModel newSlideModel = new SlideModel(Guid.NewGuid(), new LocalId(), SlideDisposition.Empty, new Rectangle(0, 0, slideWidth, slideHeight));
//Lock it
using (Synchronizer.Lock(newSlideModel.SyncRoot)) {
//Set the slide's title
newSlideModel.Title = PPTDeckIO.FindSlideTitle(taggedShapeList);
PPTDeckIO.MakeShapesInvisible(currentShapes);
//Create the Background image
//Generate a new filename
string filename = PPTDeckIO.GenerateFilename();
bool bitmapMode = true;
if (bitmapMode) {
filename = dirpath + "\\" + filename + ".JPG";
currentSlide.Export(filename, "JPG", 0, 0);
// Need to also export as EMF to get the size of the slide in inches
currentSlide.Export(filename + "_TEMP", "EMF", 0, 0);
tempFileCollection.AddFile( filename + "_TEMP", false );
}
else {
filename = dirpath + "\\" + filename + ".emf";
currentSlide.Export(filename, "EMF", 0, 0);
}
tempFileCollection.AddFile(filename, false);
//Compute the MD5 of the BG
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
MD5 md5Provider = new MD5CryptoServiceProvider();
byte[] md5 = md5Provider.ComputeHash(fs);
fs.Seek(0, SeekOrigin.Begin);
Image image = Image.FromStream(fs);
if (bitmapMode) {
image = DisassociateBitmap(image);
}
fs.Close();
// Open the EMF version if we used a bitmap to get the conversion
if( bitmapMode ) {
FileStream fsEMF = new FileStream( filename + "_TEMP", FileMode.Open, FileAccess.Read );
Image image_emf = Image.FromStream( fsEMF );
emfWidth = image_emf.Width;
emfHeight = image_emf.Height;
fsEMF.Close();
image_emf.Dispose();
} else {
emfWidth = image.Width;
emfHeight = image.Height;
}
//Create the ImageSheet
ImageSheetModel sheet = new ImageSheetModel(deck, Guid.NewGuid(), Model.Presentation.SheetDisposition.Background,
new Rectangle(0, 0, slideWidth, slideHeight), (ByteArray)md5, 1);
//Add the ImageSheet to the Slide
newSlideModel.ContentSheets.Add(sheet);
//Add the Image+MD5 to the deck
deck.AddSlideContent((ByteArray)md5, image);
// Restore visibility - this makes everything visible - a bug?
PPTDeckIO.MakeShapesVisible(currentShapes);
List<List<TaggedShape>> layerList = PPTDeckIO.SeparateIntoLayers(taggedShapeList);
int startHeight = 2;
foreach (List<TaggedShape> layer in layerList)
PPTDeckIO.ProcessLayer( layer, tempFileCollection, currentShapes, deck, newSlideModel,
slideWidth/emfWidth, slideHeight/emfHeight, startHeight++ );
//Add SlideModel to the deck
deck.InsertSlide(newSlideModel);
}
return newSlideModel;
}
/// <summary>
/// Handle clicking of this button (switch between whiteboard and normal deck)
/// </summary>
/// <param name="args">The event arguments</param>
protected override void OnClick(EventArgs args)
{
using (this.m_Model.Workspace.Lock())
{
using( Synchronizer.Lock( this.m_Model.Participant.SyncRoot ) )
{
DeckTraversalModel traversal;
if (this.CurrentDeckTraversal == null || (this.CurrentDeckTraversal.Deck.Disposition & DeckDisposition.Whiteboard) == 0)
{
traversal = this.m_PreviousWhiteboard;
// Make sure the deck hasn't been closed.
if (!this.m_Model.Workspace.DeckTraversals.Contains(traversal))
traversal = this.m_PreviousWhiteboard = null;
// If there is no previous whiteboard traversal, find one or create one.
if (traversal == null)
{
// TODO: If the participant is an instructor, *only* search the whiteboards in the active presentation.
// Then, when changing the current deck, also change the current presentation if necessary.
foreach (DeckTraversalModel candidate in this.m_Model.Workspace.DeckTraversals)
{
if ((candidate.Deck.Disposition & DeckDisposition.Whiteboard) != 0)
{
traversal = candidate;
break;
}
}
// If there is no existing whiteboard deck, create one.
if (traversal == null)
{
// Change the name of whiteboard according to the number of it
string wbname = "WhiteBoard " + (++UW.ClassroomPresenter.Viewer.ViewerForm.white_board_num).ToString();
// NOTE: This code is duplicated in DecksMenu.CreateBlankWhiteboardDeckMenuItem.
DeckModel deck = new DeckModel(Guid.NewGuid(), DeckDisposition.Whiteboard, wbname);
using (Synchronizer.Lock(deck.SyncRoot))
{
SlideModel slide = new SlideModel(Guid.NewGuid(), new LocalId(), SlideDisposition.Empty, UW.ClassroomPresenter.Viewer.ViewerForm.DEFAULT_SLIDE_BOUNDS);
deck.InsertSlide(slide);
using (Synchronizer.Lock(deck.TableOfContents.SyncRoot))
{
TableOfContentsModel.Entry entry = new TableOfContentsModel.Entry(Guid.NewGuid(), deck.TableOfContents, slide);
deck.TableOfContents.Entries.Add(entry);
}
}
traversal = new SlideDeckTraversalModel(Guid.NewGuid(), deck);
if (this.m_Model.Workspace.CurrentPresentation.Value != null)
{
using (Synchronizer.Lock((~this.m_Model.Workspace.CurrentPresentation).SyncRoot))
{
(~this.m_Model.Workspace.CurrentPresentation).DeckTraversals.Add(traversal);
}
}
else
{
this.m_Model.Workspace.DeckTraversals.Add(traversal);
}
}
}
}
else
{
traversal = this.m_PreviousNormal;
// Make sure the deck hasn't been closed.
if (!this.m_Model.Workspace.DeckTraversals.Contains(traversal))
traversal = this.m_PreviousNormal = null;
// Search the workspace for a non-whiteboard deck if we haven't encountered one before.
if (traversal == null)
{
// TODO: If the participant is an instructor, *only* search the whiteboards in the active presentation.
foreach (DeckTraversalModel candidate in this.m_Model.Workspace.DeckTraversals)
{
if ((candidate.Deck.Disposition & DeckDisposition.Whiteboard) == 0)
{
traversal = candidate;
break;
}
}
// If we still haven't found a non-whiteboard deck, do nothing.
if (traversal == null)
return;
}
}
// If the user's role is an InstructorModel, set the InstructorModel's CurrentDeckTraversal.
// The NetworkAssociationService will then use this to set the WorkspaceModel's CurrentDeckTraversal,
// and the new deck traversal will also be broadcast.
InstructorModel instructor = this.m_Model.Participant.Role as InstructorModel;
if (instructor != null)
{
using (Synchronizer.Lock(instructor.SyncRoot))
{
instructor.CurrentDeckTraversal = traversal;
}
}
else
{
// Otherwise, we must set the CurrentDeckTraversal on the WorkspaceModel directly.
using (this.m_Model.Workspace.Lock())
{
this.m_Model.Workspace.CurrentDeckTraversal.Value = traversal;
}
}
}
}
base.OnClick(args);
}
private static SlideModel CreateSlide(DocumentPage page, DeckModel deck)
{
int slideWidth = (int)page.Size.Width;
int slideHeight = (int)page.Size.Height;
//Create a new SlideModel
SlideModel newSlideModel = new SlideModel(Guid.NewGuid(), new LocalId(), SlideDisposition.Empty, new Rectangle(0, 0, slideWidth, slideHeight));
//Create a XPSPageSheetModel for each XPS Page
XPSPageSheetModel sheet = new XPSPageSheetModel(page, new XPSDocumentPageWrapper(page), Guid.NewGuid(), SheetDisposition.All, new Rectangle(0, 0, slideWidth, slideHeight), slideHeight);
//Add XPSPageSheetModel into SlideModel
using (Synchronizer.Lock(newSlideModel.SyncRoot))
{
newSlideModel.ContentSheets.Add(sheet);
}
deck.InsertSlide(newSlideModel);
return newSlideModel;
}