public async Task saveInking(int pageNumber, InkStrokeContainer inkStrokeContainer)
{
// Remove if there is no strokes.
if (inkStrokeContainer.GetStrokes().Count == 0)
{
InkDictionary.Remove(pageNumber);
}
else
{
InkDictionary[pageNumber] = inkStrokeContainer;
}
// Enqueue the page if it is not already in the queue
if (!this.inkingChangedPagesQueue.Contains(pageNumber))
this.inkingChangedPagesQueue.Enqueue(pageNumber);
// Invoke save inking only if SaveInking is not running.
// This will prevent running multiple saving instance at the same time.
if (!this.isSavingInking)
await SaveInkingQueue();
}
/// <summary>
/// Load the family and their notes from local storage
/// </summary>
/// <returns>Null if there was no model to load, otherwise, the deserialized model</returns>
private async Task<Model> LoadModelAsync()
{
Model model = null;
InkStrokeContainer combinedStrokes = new InkStrokeContainer(); // To avoid managing individual files for every InkCanvas, we will combine all ink stroke information into one container
List<int> InkStrokesPerCanvas = new List<int>();
try
{
StorageFile modelDataFile = await ApplicationData.Current.LocalFolder.GetFileAsync(NOTES_MODEL_FILE);
using (IRandomAccessStream randomAccessStream = await modelDataFile.OpenAsync(FileAccessMode.ReadWrite))
{
// Load the model which contains the people and the note collection
try
{
DataContractJsonSerializer modelSerializer = new DataContractJsonSerializer(typeof(Model));
model = (Model)modelSerializer.ReadObject(randomAccessStream.AsStream());
}
catch (System.Runtime.Serialization.SerializationException)
{
System.Diagnostics.Debug.Assert(false, "Failed to load serialized model");
return null;
}
}
// For each sticky note, load the number of inkstrokes it contains
StorageFile inkDataFile = await ApplicationData.Current.LocalFolder.GetFileAsync(NOTES_INK_FILE);
using (IInputStream inkStream = await inkDataFile.OpenSequentialReadAsync())
{
bool combinedStrokesExist = false;
DataReader reader = new DataReader(inkStream);
foreach (StickyNote n in model.StickyNotes)
{
await reader.LoadAsync(sizeof(int)); // You need to buffer the data before you can read from a DataReader.
int numberOfInkStrokes = reader.ReadInt32();
InkStrokesPerCanvas.Add(numberOfInkStrokes);
combinedStrokesExist |= numberOfInkStrokes > 0;
}
// Load the ink data
if (combinedStrokesExist)
{
await combinedStrokes.LoadAsync(inkStream);
}
} // using inkStream
} // try
catch (FileNotFoundException)
{
// No data to load. We'll start with a fresh model
return null;
}
// Factor out the inkstrokes from the big container into each note
int allStrokesIndex = 0, noteIndex = 0;
IReadOnlyList<InkStroke> allStrokes = combinedStrokes.GetStrokes();
foreach (StickyNote n in model.StickyNotes)
{
// InkStrokeContainers can't be serialized using the default xml/json serialization.
// So create a new one and fill it up from the data we restored
n.Ink = new InkStrokeContainer();
// pull out the ink strokes that belong to this note
for (int i = 0; i < InkStrokesPerCanvas[noteIndex]; i++)
{
n.Ink.AddStroke(allStrokes[allStrokesIndex++].Clone());
}
++noteIndex;
}
return model;
}
public void SyncStrokeEx(Dictionary<InkStroke,double> strokes, InkStrokeContainer containner, double currentCanvasWidth,bool forcrRefresh = false)
{
lock(locker)
{
if(strokes.Count > containner.GetStrokes().Count)
{
foreach (var item in strokes)
{
bool exist = false;
foreach (var itemInner in containner.GetStrokes())
{
InkStroke strokeCopy = itemInner.Clone();
strokeCopy.PointTransform = System.Numerics.Matrix3x2.CreateScale(1f);
if (InkHelper.SameInkStroke(item.Key, strokeCopy))
{
exist = true;
break;
}
}
if (!exist)
{
foreach(var itemMp in StrokeMapping)
{
if(InkHelper.SameInkStroke(item.Key,itemMp.Key) && item.Value == itemMp.Value)
{
StrokeMapping.Remove(itemMp.Key);
break;
}
}
}
}
}
else if(strokes.Count < containner.GetStrokes().Count)
{
InkStroke stroke = containner.GetStrokes()[containner.GetStrokes().Count - 1].Clone();
StrokeMapping.Add(stroke.Clone(),currentCanvasWidth);
}
else
{
if(strokes.Count == StrokeMapping.Count && !forcrRefresh)
{
return;
}
}
strokes.Clear();
containner.Clear();
foreach(var item in StrokeMapping)
{
InkStroke stroke = item.Key.Clone();
strokes.Add(stroke.Clone(), item.Value);
stroke.PointTransform = System.Numerics.Matrix3x2.CreateScale((float)(currentCanvasWidth / item.Value));
containner.AddStroke(stroke.Clone());
}
//if(read)
//{
// strokes.Clear();
// foreach(var item in StrokeMapping)
// {
// strokes.Add(item.Key.Clone(),item.Value);
// }
//}
//else
//{
// StrokeMapping.Clear();
// foreach(var item in strokes)
// {
// StrokeMapping.Add(item.Key.Clone(),item.Value);
// }
//}
}
}
public void SyncStroke(InkStrokeContainer containner,double currentCanvasWidth,bool syncAll = true, InkStroke stroke = null)
{
lock(locker)
{
try
{
if (syncAll)
{
Strokes.Clear();
foreach (var item in containner.GetStrokes())
{
InkStroke strokeClone = item.Clone();
strokeClone.PointTransform = System.Numerics.Matrix3x2.CreateScale((float)(currentCanvasWidth / originalCanvasWidth));
Strokes.Add(strokeClone);
}
}
else
{
if (null != stroke)
{
InkStroke strokeClone = stroke.Clone();
strokeClone.PointTransform = System.Numerics.Matrix3x2.CreateScale((float)(currentCanvasWidth / originalCanvasWidth));
Strokes.Add(strokeClone);
}
else
{
containner.Clear();
foreach (var item in Strokes)
{
InkStroke strokeClone = item.Clone();
strokeClone.PointTransform = System.Numerics.Matrix3x2.CreateScale((float)(currentCanvasWidth / originalCanvasWidth));
containner.AddStroke(strokeClone);
}
}
}
}
catch(Exception e)
{
#if DEBUG
System.Diagnostics.Debug.WriteLine(e.Message);
#endif
}
}
}