public bool Redo()
{
try
{
if (MRedoLinePaths.Count > 0)
{
var last = MRedoLinePaths.LastOrDefault();
if (last != null)
{
var lastLinePaths = MRedoLinePaths.LastOrDefault();
if (lastLinePaths != null)
{
MLinePaths.Add(lastLinePaths);
}
MRedoLinePaths.Remove(last);
}
Invalidate();
}
MBrushViewChangeListener?.OnViewAdd(this);
return(MRedoLinePaths.Count != 0);
}
catch (Exception e)
{
Console.WriteLine(e);
return(false);
}
}
public bool Redo()
{
try
{
if (MRedoPaths.Count > 0)
{
var last = MRedoPaths.LastOrDefault();
if (last != null)
{
var lastLinePaths = MRedoPaths.LastOrDefault();
if (lastLinePaths != null)
{
MDrawnPaths.Add(lastLinePaths);
}
MRedoPaths.Remove(last);
}
Invalidate();
}
MBrushViewChangeListener?.OnViewAdd(this);
return(MRedoPaths.Count != 0);
}
catch (Exception e)
{
Methods.DisplayReportResultTrack(e);
return(false);
}
}
public void TouchUp()
{
try
{
MPath.LineTo(MTouchX, MTouchY);
// Commit the path to our offscreen
MDrawCanvas.DrawPath(MPath, MDrawPaint);
// kill this so we don't double draw
MLinePaths.Add(new LinePath(MPath, MDrawPaint));
MPath = new Path();
if (MBrushViewChangeListener != null)
{
MBrushViewChangeListener.OnStopDrawing();
MBrushViewChangeListener.OnViewAdd(this);
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}