protected virtual void DrawGraphInBuffer(IDrawOptions options)
{
if (options == null)
{
throw new InvalidArgumentException("parameter is null");
}
// Do not draw if canvas size is 0
if (options.CanvasSize.Width == 0 || options.CanvasSize.Height == 0)
{
return;
}
// Check that buffer was not created or recreate when size was changed
if (this.drawingBuffer == null ||
this.drawingBuffer.CanvasSize.Width != options.CanvasSize.Width ||
this.drawingBuffer.CanvasSize.Height != options.CanvasSize.Height)
{
this.drawingBuffer = new DrawingBuffer(options.CanvasSize);
}
this.UpdateScale?.Invoke(this, new UpdateScaleEventArgs(options));
// Draw in buffer
using (var drawing = new Drawing2DWrapper(this.drawingBuffer.Graphics))
{
this.DrawGraph?.Invoke(this, new DrawGraphEventArgs(drawing, options));
}
}
private static IDrawing StartCreateAndDrawDataLines(int pointsNumber, bool drawInBitmap, bool runProvider)
{
var linesNumber = pointsNumber - 1;
var linesToDraw = 0;
IDataProviderService provider = null;
TestDrawingWrapper drawingTester = null;
DrawingBuffer buffer = null;
Drawing2DWrapper drawingBitmap = null;
IDrawing drawing = null;
var size = new Size(800, 600);
if (drawInBitmap)
{
size = new Size(8000, 4500);
buffer = new DrawingBuffer(size);
drawingBitmap = new Drawing2DWrapper(buffer.Graphics);
drawing = drawingBitmap;
}
else
{
drawingTester = new TestDrawingWrapper(100);
drawing = drawingTester;
}
IScaleService scaleService = null;
IDataService dataService = null;
var controller = GraphControlFactory.CreateController();
IBufferedDrawingService bufferedDrawingService = new BufferedDrawingService();
int receivedPoints = 0;
try
{
// Create all services
provider = TestSinusDataProviderService.Create(pointsNumber);
var view = TestDataView.Create(controller, provider, bufferedDrawingService);
var margin = new Margin(100, 5, 5, 60);
var options = new DataDrawOptions(size, true, true, null, new DataDrawState());
scaleService = controller.GetInstance <IScaleService>();
scaleService.UpdateScale(options); // to prepare scaling service without presenter
dataService = controller.GetInstance <IDataService>();
dataService.DataUpdated += (sender, e) =>
{
scaleService.UpdateScale(options);
drawingTester?.Reset();
view.Draw(drawing, options, margin);
receivedPoints += e.Items.Count;
};
if (pointsNumber > 0)
{
provider.Run();
// Wait to draw at least test points
while (receivedPoints < pointsNumber)
{
Thread.Sleep(0);
}
}
else
{
view.Draw(drawing, options, margin);
}
linesToDraw = dataService.GetItems(scaleService.State.X1, scaleService.State.X2).Count();
}
finally
{
bufferedDrawingService.Dispose();
}
Assert.IsTrue(bufferedDrawingService.LastQueueOverflow.Ticks == 0, $"drawing queue overflow, last time: {bufferedDrawingService.LastQueueOverflow.ToLongTimeString()}");
Assert.IsTrue(linesToDraw == pointsNumber,
$"dataService.GetItems({new DateTime((long)scaleService.State.X1 * TimeSpan.TicksPerMillisecond).ToString("HH:mm:ss.fff")}"
+ $", {new DateTime((long)scaleService.State.X1 * TimeSpan.TicksPerMillisecond).ToString("HH:mm:ss.fff")}) {linesToDraw} ({dataService.ItemCount}) != generated points {pointsNumber}");
if (!drawInBitmap)
{
Assert.IsTrue(drawingTester.Lines.Count >= linesNumber, $"lines count is {drawingTester.Lines.Count} less than {linesNumber}");
}
return(drawing);
}
