/// <summary>
/// Removes ink AND text annotations from the slide
/// </summary>
public void RemoveAllInk()
{
if (opaqueInk != null)
{
opaqueInk.DeleteStrokes();
dirtyBit = true;
}
if (transparentInk != null)
{
transparentInk.DeleteStrokes();
dirtyBit = true;
}
if (textAnnotations != null)
{
textAnnotations.Clear();
dirtyBit = true;
}
}
/// <summary>
/// Loads Ink Data from a specified ISF or JNT file
/// </summary>
/// <param name="inkDataFileName">
/// The file to load the Ink Data from.</param>
protected void LoadRecordedData(string inkDataFileName)
{
// First, reset the Ink object
PlaybackInk.DeleteStrokes();
if (!File.Exists(inkDataFileName))
{
MessageBox.Show("Cannot find file: " + inkDataFileName);
return;
}
// Read in the specified file
FileStream isfStream = new FileStream(inkDataFileName, FileMode.Open, FileAccess.Read);
// Verify the filestream creation was successful
if (null != isfStream && isfStream.Length > 0)
{
byte[] isfBytes = new byte[isfStream.Length];
// read in the ISF doc
isfStream.Read(isfBytes, 0, (int)isfStream.Length);
// Load the ink into a new Temporary object
// Once an Ink object has been "dirtied" it cannot load ink
Microsoft.Ink.Ink TemporaryInk = new Microsoft.Ink.Ink();
// Load the ISF into the ink object
TemporaryInk.Load(isfBytes);
// Add the loaded strokes to our Ink object
PlaybackInk.AddStrokesAtRectangle(TemporaryInk.Strokes, TemporaryInk.Strokes.GetBoundingBox());
// Close the file stream
isfStream.Close();
}
}
