private void InitCollector(DatasGathering.CollectorConfig conf) {
_currFileName = null;
if (_collector != null)
_collector.Dispose();
_collector = new DatasGathering.DatasCollector(conf);
_collector.DatasChanged += _collector_DatasChanged;
_collector.StateChanged += _collector_StateChanged;
_collector.AwaitTick += _collector_AwaitTick;
_chart = new ChartRendering.ChartRenderer(cnvChart, _collector.Datas);
_chart.Render();
lblError.Text = "";
imgError.Visibility = Visibility.Hidden;
var t = _collector.Start();
grdNoConfiguration.Visibility = Visibility.Hidden;
mnSave.IsEnabled = true;
}
private void btSaveImage_Click(object sender, RoutedEventArgs e) {
if (_collector == null)
return;
// Create new canvas and renderer
var cnv = new Canvas() { Margin = cnvChart.Margin, Width = cnvChart.ActualWidth, Height = cnvChart.ActualHeight, Background = System.Windows.Media.Brushes.White };
var ch = new ChartRendering.ChartRenderer(cnv, _collector.Datas);
cnv.Measure(new System.Windows.Size(double.PositiveInfinity, double.PositiveInfinity));
cnv.Arrange(new Rect(0, 0, cnv.DesiredSize.Width, cnv.DesiredSize.Height));
var cwidth = (int)cnv.RenderSize.Width;
var cheight = (int)(cnv.RenderSize.Height + cnv.Margin.Top * 2);
var rtb = new RenderTargetBitmap(cwidth, cheight, 96d, 96d, PixelFormats.Default);
// Generate a white background
var dv = new DrawingVisual();
var dvct = dv.RenderOpen();
dvct.DrawRectangle(System.Windows.Media.Brushes.White, null, new Rect(0, 0, rtb.Width, rtb.Height));
dvct.Close();
rtb.Render(dv);
// Render chart and create Bitmap
ch.Render(false);
// Add additional informations overlays
AddChartImageInfos(cnv);
cnv.UpdateLayout();
rtb.Render(cnv);
// Open file dialog and save image if OK
var fd = new SaveFileDialog();
fd.Filter = "PNG Images|*.png";
fd.DefaultExt = ".png";
fd.InitialDirectory = Properties.Settings.Default.fdpath_img;
if (true == fd.ShowDialog(this)) {
Properties.Settings.Default.fdpath_img = Path.GetDirectoryName(fd.FileName);
Properties.Settings.Default.Save();
var bf = BitmapFrame.Create(rtb);
var pngEncoder = new PngBitmapEncoder();
pngEncoder.Frames.Add(bf);
using (var st = System.IO.File.OpenWrite(fd.FileName)) {
pngEncoder.Save(st);
}
var result = MessageBox.Show("Show generated file in Explorer ?", "Image successfully generated", MessageBoxButton.YesNo, MessageBoxImage.Question);
if (result == MessageBoxResult.Yes)
System.Diagnostics.Process.Start("explorer.exe", "/select, " + fd.FileName);
}
}
