// All of the functions below read in the corresponding part of the file
// They assume that the reader starts pointing to the element tag of the
// correct type and position the reader at the end tag
/// <summary>
/// Reads the Point XML attributes
/// </summary>
/// <param name="reader">XML text reader for the file</param>
private void ReadPoint(XmlTextReader reader)
{
// All of these attributes are required for Points
string x = reader.GetAttribute("x");
string y = reader.GetAttribute("y");
string pressure = reader.GetAttribute("pressure");
string time = reader.GetAttribute("time");
string id = reader.GetAttribute("id");
string name = reader.GetAttribute("name");
if (name == null)
{
name = "Point_" + id;
}
// Make sure that old sketches that didn't save pressure
// Still have thicker lines
if (pressure == null || pressure == "0")
{
pressure = "0.5";
}
Sketch.XmlStructs.XmlPointAttrs pointAttrs;
if ((x != null) && (y != null) && (pressure != null) && (time != null) && (id != null))
{
pointAttrs = new XmlStructs.XmlPointAttrs(
Convert.ToSingle(x),
Convert.ToSingle(y),
Convert.ToSingle(pressure),
Convert.ToUInt64(time),
name, new Guid(id));
}
else
{
throw new ApplicationException("Invalid Format: Points must contain an X, Y, Pressure, Time, and Id value");
}
// Create the new Point and add it to the corresponding Hashtable
Point point = new Point(pointAttrs);
if (!this.pointsHT.ContainsKey(point.Id))
{
this.pointsHT.Add(point.Id, point);
}
reader.Read();
}
/// <summary>
/// Takes an Ink.Stroke and outputs an internal representation that can
/// then be output to an XML file
/// </summary>
/// <param name="inkStroke">Ink.Stroke which will have extracted from it the information necessary to store a Stroke in MIT XML.</param>
/// <param name="transf">Transformation matrix to shift the stroke by</param>
/// <param name="shift">Boolean for if we should shift by the transformation matrix</param>
/// <returns>PointsAndShape object that stores the extracted information.</returns>
public static Sketch.Stroke StripStrokeData(Microsoft.Ink.Stroke inkStroke, Matrix transf, bool shift)
{
int i;
int length;
// Get the timestamp for the function using an undocumented GUID (Microsoft.Ink.StrokeProperty.TimeID) to
// get the time as a byte array, which we then convert to a long
ulong theTime;
if (inkStroke.ExtendedProperties.Contains(Microsoft.Ink.StrokeProperty.TimeID) &&
(inkStroke.ExtendedProperties[Microsoft.Ink.StrokeProperty.TimeID] != null))
{
byte[] timeBits = inkStroke.ExtendedProperties[Microsoft.Ink.StrokeProperty.TimeID].Data as byte[];
// Filetime format
ulong fileTime = BitConverter.ToUInt64(timeBits, 0);
// MIT time format
theTime = (fileTime - 116444736000000000) / 10000;
//string time = theTime.ToString();
}
else
{
//theTime = (ulong)System.DateTime.Now.Ticks;
//theTime = ((ulong)System.DateTime.Now.Ticks - 116444736000000000) / 10000;
theTime = ((ulong)DateTime.Now.ToFileTime() - 116444736000000000) / 10000;
}
// Grab X and Y
int[] xData = inkStroke.GetPacketValuesByProperty(Microsoft.Ink.PacketProperty.X);
int[] yData = inkStroke.GetPacketValuesByProperty(Microsoft.Ink.PacketProperty.Y);
if (shift)
{
// Shift X and Y according to transformation matrix
System.Drawing.Point[] pointData = new System.Drawing.Point[xData.Length];
length = xData.Length;
for (i = 0; i < length; i++)
{
pointData[i] = new System.Drawing.Point(xData[i], yData[i]);
}
transf.TransformPoints(pointData);
//Console.WriteLine("x: " + (pointData[0].X - xData[0]) + " y: " + (pointData[0].Y - yData[0]));
for (i = 0; i < length; i++)
{
xData[i] = pointData[i].X;
yData[i] = pointData[i].Y;
}
}
Microsoft.Ink.DrawingAttributes drawingAttributes = inkStroke.DrawingAttributes;
System.Drawing.Rectangle boundingBox = inkStroke.GetBoundingBox();
// Grab the color
int color = drawingAttributes.Color.ToArgb();
// THIS IS DRAWING POINT (PENTIP) HEIGHT AND WIDTH... WE DONT HAVE ANYWHERE TO PUT IT...
//string height = inkStroke.DrawingAttributes.Height.ToString();
//string width = inkStroke.DrawingAttributes.Width.ToString();
float penWidth = drawingAttributes.Width;
float penHeight = drawingAttributes.Height;
// Grab height and width of total stroke
//float height = boundingBox.Height;
//float width = boundingBox.Width;
// Grab penTip
string penTip = drawingAttributes.PenTip.ToString();
// Grab raster
string raster = drawingAttributes.RasterOperation.ToString();
//float x = Convert.ToSingle(boundingBox.X);
//float y = Convert.ToSingle(boundingBox.Y);
//float leftx = Convert.ToSingle(boundingBox.Left);
//float topy = Convert.ToSingle(boundingBox.Top);
// If the pressure data is included take it, otherwise set to 255/2's
// Not all pressure data is in the range of 0 - 255. Some tablets
// register pressure in the range 0 - 1023, while others are 0 - 32768
int[] pressureData;
if (ReadJnt.IsPropertyIncluded(inkStroke, Microsoft.Ink.PacketProperty.NormalPressure))
{
pressureData = inkStroke.GetPacketValuesByProperty(Microsoft.Ink.PacketProperty.NormalPressure);
int max = 0;
foreach (int p in pressureData)
{
max = Math.Max(max, p);
}
if (max > 1024) // Tablet reading in range 0 - 32767
{
double conversion = 255.0 / 32767.0;
List <int> temp = new List <int>(pressureData.Length);
foreach (int p in pressureData)
{
temp.Add((int)(p * conversion));
}
pressureData = temp.ToArray();
}
else if (max > 255) // Tablet reading in range 0 - 1023
{
double conversion = 255.0 / 1023.0;
List <int> temp = new List <int>(pressureData.Length);
foreach (int p in pressureData)
{
temp.Add((int)(p * conversion));
}
pressureData = temp.ToArray();
}
}
else
{
pressureData = new int[xData.Length];
length = pressureData.Length;
for (i = 0; i < length; ++i)
{
pressureData[i] = (255 - 0) / 2;
}
}
// If the time data is included take it, otherwise set to the timestamp plus and increment
ulong[] adjustedTime = new ulong[xData.Length];
int[] timerTick;
if (ReadJnt.IsPropertyIncluded(inkStroke, Microsoft.Ink.PacketProperty.TimerTick))
{
timerTick = inkStroke.GetPacketValuesByProperty(Microsoft.Ink.PacketProperty.TimerTick);
length = timerTick.Length;
for (i = 0; i < length; i++)
{
// This may be incorrect, we never encountered this because Microsoft Journal doesn't save TimerTick data.
// We know that the timestamp of a stroke is made when the pen is lifted.
// Add the time of the stroke to each offset
adjustedTime[i] = theTime + (ulong)timerTick[i] * 10000;
}
}
else
{
timerTick = new int[xData.Length];
length = timerTick.Length;
for (i = 0; i < length; i++)
{
// We believe this to be the standard sample rate. The multiplication by 1,000 is to convert from
// seconds to milliseconds.
//
// Our time is in the form of milliseconds since Jan 1, 1970
//
// NOTE: The timestamp for the stroke is made WHEN THE PEN IS LIFTED
adjustedTime[i] = theTime - (ulong)((1 / SAMPLE_RATE * 1000) * (length - i));
}
}
// Create the array of ID's as new Guid's
Guid[] idData = new Guid[xData.Length];
length = idData.Length;
for (i = 0; i < length; i++)
{
idData[i] = Guid.NewGuid();
}
// Create the internal representation
Sketch.Stroke converterStroke = new Sketch.Stroke();
converterStroke.Name = "stroke";
converterStroke.Time = (ulong)theTime;
converterStroke.Source = "Converter";
// Add all of the points to the stroke
length = inkStroke.PacketCount;
List <Point> pointsToAdd = new List <Point>();
for (i = 0; i < length; i++)
{
float currX = Convert.ToSingle(xData[i]);
float currY = Convert.ToSingle(yData[i]);
XmlStructs.XmlPointAttrs attrs = new XmlStructs.XmlPointAttrs(
currX, currY,
Convert.ToUInt16(pressureData[i]),
Convert.ToUInt64(adjustedTime[i]),
"point", idData[i]);
Sketch.Point toAdd = new Sketch.Point(attrs);
}
//NOTE: X, Y, WIDTH, HEIGHT done later... boundingbox seems to be off
Sketch.Substroke substroke = new Sketch.Substroke(pointsToAdd);
substroke.Name = "substroke";
substroke.Color = color;
substroke.PenTip = penTip;
substroke.PenWidth = penWidth;
substroke.PenHeight = penHeight;
substroke.Raster = raster;
substroke.Source = "ConverterJnt";
substroke.Start = idData[0];
substroke.End = idData[idData.Length - 1];
converterStroke.AddSubstroke(substroke);
return(converterStroke);
}
