/// <summary>
/// Method to open a scribble file
/// </summary>
private void Open()
{
// create a instance of file dialog box to specify the file
Microsoft.Win32.OpenFileDialog openFileDialog = new Microsoft.Win32.OpenFileDialog();
openFileDialog.Filter = CanvasConstants.FileType;
// call showDialog to display the file dialog
if (openFileDialog.ShowDialog() == true)
{
// Call service method to deserialize the file contents into Model
DataService.CanvasService canvasService = new DataService.CanvasService();
CanvasModel canvasModel = canvasService.Read(openFileDialog.FileName);
for (int i = 0; i < canvasModel.Points.Length; i++)
{
if (canvasModel.Points[i] != null)
{
// Call the extension method to convet the points array to storke
var strokes = canvasModel.Points[i].GenerateStroke((DrawingMode)canvasModel.Modes[i]);
// add the stroke to the collection
this.Strokes.Add(strokes);
}
}
}
}
/// <summary>
/// Method to save the canvas strokes
/// </summary>
private void Save()
{
CanvasModel canvasModel = new CanvasModel();
// Call the extension method to convert the strokes in to point array
canvasModel.Points = this.Strokes.GeneratePointArray();
// Call the extension method to get the drawing modes of strokes
canvasModel.Modes = this.Strokes.GetDrawingModes();
// create a instance of file dialog box to specify the file name and location for save
Microsoft.Win32.SaveFileDialog saveFileDialog = new Microsoft.Win32.SaveFileDialog();
// Set the filter that determines the file type
saveFileDialog.Filter = CanvasConstants.FileType;
if (saveFileDialog.ShowDialog() == true)
{
DataService.CanvasService canvasService = new DataService.CanvasService();
// call the service method to serialize and save the the contents
canvasService.Write(saveFileDialog.FileName, canvasModel);
}
}
