Parasitemia/ParasitemiaUI/Analysis.fs

   1 module ParasitemiaUI.Analysis
   2
   3 open System
   4 open System.IO
   5 open System.Linq
   6 open System.Windows
   7 open System.Windows.Media
   8 open System.Windows.Markup
   9 open System.Windows.Shapes
  10 open System.Windows.Controls
  11 open System.Diagnostics
  12 open Microsoft.Win32 // For the common dialogs.
  13
  14 open Emgu.CV.WPF
  15
  16 open ParasitemiaCore.UnitsOfMeasure
  17 open ParasitemiaCore.Config
  18
  19 open Types
  20
  21 let showWindow (parent: Window) (state: State.State) : bool =
  22     let window = Views.AnalysisWindow()
  23     window.Root.Owner <- parent
  24     window.Root.Left <- parent.Left + parent.ActualWidth / 2. - window.Root.Width / 2.
  25     window.Root.Top <- parent.Top + parent.ActualHeight / 2. - window.Root.Height / 2.
  26
  27     let ctrl (name: string): 'a = window.Root.FindName(name) :?> 'a
  28
  29     let butClose: Button = ctrl "butClose"
  30     let butStart: Button = ctrl "butStart"
  31
  32     let stackImagesSourceSelection: StackPanel = ctrl "stackImagesSourceSelection"
  33     let progressBar: ProgressBar = ctrl "progress"
  34     let textLog: TextBlock = ctrl "textLog"
  35     let scrollLog: ScrollViewer = ctrl "scrollLog"
  36
  37     let logListener =
  38         { new Logger.IListener with
  39             member this.NewEntry severity mess =
  40                 window.Root.Dispatcher.Invoke(fun () ->
  41                 textLog.Inlines.Add(Documents.Run(mess))
  42                 textLog.Inlines.Add(Documents.LineBreak())
  43                 scrollLog.ScrollToBottom()) }
  44
  45     Logger.Log.AddListener(logListener)
  46
  47     let minPPI = 1.
  48     let maxPPI = 10e6
  49     let parseAndValidatePPI (input: string) : float option =
  50         let res = ref 0.
  51         if Double.TryParse(input, res) && !res >= minPPI && !res <= maxPPI
  52         then Some !res
  53         else None
  54
  55     let monitor = Object()
  56     let mutable atLeastOneAnalysisPerformed = false
  57     let mutable analysisPerformed = false
  58     let mutable analysisCancelled = false
  59
  60     let updateSourceImages () =
  61         stackImagesSourceSelection.Children.Clear()
  62         let width = int stackImagesSourceSelection.ActualWidth
  63         for srcImg in state.SourceImages do
  64             let imageSourceSelection = Views.ImageSourceSelection(Tag = srcImg, Margin = Thickness(3.))
  65
  66             let updateResolution () =
  67                 match parseAndValidatePPI imageSourceSelection.txtResolution.Text with
  68                 | Some resolution -> srcImg.config.Parameters <- { srcImg.config.Parameters with resolution = resolution * 1.<ppi> }
  69                 | None -> ()
  70
  71             imageSourceSelection.txtImageNumber.Text <- srcImg.num.ToString()
  72             let height = srcImg.img.Height * width / srcImg.img.Width
  73             imageSourceSelection.imagePreview.Source <- BitmapSourceConvert.ToBitmapSource(srcImg.img.Resize(width, height, Emgu.CV.CvEnum.Inter.Cubic))
  74             imageSourceSelection.chkSelection.IsChecked <- Nullable<bool>(srcImg.dateLastAnalysis.Ticks = 0L)
  75             imageSourceSelection.lblDateLastAnalysis.Content <- if srcImg.dateLastAnalysis.Ticks = 0L then "<Never>" else srcImg.dateLastAnalysis.ToString()
  76
  77             imageSourceSelection.txtResolution.Text <- srcImg.config.Parameters.resolution.ToString()
  78             imageSourceSelection.menuZoom50X.Click.AddHandler(fun obj args -> imageSourceSelection.txtResolution.Text <- "230000"; updateResolution ())
  79             imageSourceSelection.menuZoom100X.Click.AddHandler(fun obj args -> imageSourceSelection.txtResolution.Text <- "460000"; updateResolution ())
  80
  81             imageSourceSelection.txtResolution.PreviewTextInput.AddHandler(fun obj args ->
  82                 let text = imageSourceSelection.txtResolution.Text + args.Text
  83                 args.Handled <- match parseAndValidatePPI text with Some _ -> false | None -> true)
  84
  85             imageSourceSelection.imagePreview.MouseLeftButtonDown.AddHandler(fun obj args ->
  86                 let checkbox = imageSourceSelection.chkSelection
  87                 checkbox.IsChecked <- Nullable<bool>(not (checkbox.IsChecked.HasValue && checkbox.IsChecked.Value)))
  88
  89             imageSourceSelection.txtResolution.LostFocus.AddHandler(fun obj args -> updateResolution ())
  90
  91             stackImagesSourceSelection.Children.Add(imageSourceSelection) |> ignore
  92
  93     butClose.Click.AddHandler(fun obj args -> window.Root.Close())
  94
  95     butStart.Click.AddHandler(fun obj args ->
  96         let imagesToProcess = [
  97             for imageSelection in stackImagesSourceSelection.Children |> Seq.cast<Views.ImageSourceSelection> do
  98                 let chk = imageSelection.chkSelection.IsChecked
  99                 if chk.HasValue && chk.Value
 100                 then
 101                     let srcImg = imageSelection.Tag :?> SourceImage
 102                     yield srcImg.num.ToString(), srcImg.config, srcImg.img ]
 103
 104         if imagesToProcess.IsEmpty
 105         then
 106             MessageBox.Show("No image selected", "Cannot start analysis", MessageBoxButton.OK, MessageBoxImage.Information) |> ignore
 107         else
 108             analysisPerformed <- false
 109             butStart.IsEnabled <- false
 110             butClose.Content <- "Abort"
 111             async {
 112                 let results =
 113                     ParasitemiaCore.Analysis.doMultipleAnalysis
 114                         imagesToProcess
 115                         (Some (fun progress -> window.Root.Dispatcher.Invoke(fun () -> progressBar.Value <- float progress)))
 116
 117                 lock monitor (
 118                     fun() ->
 119                         if not analysisCancelled
 120                         then
 121                             for id, cells in results do
 122                                 state.SetResult (int id) cells
 123
 124                             window.Root.Dispatcher.Invoke(fun () ->
 125                                 butStart.IsEnabled <- true
 126                                 butClose.Content <- "Close"
 127                                 updateSourceImages ())
 128
 129                             Logger.Log.User("All analyses terminated successfully")
 130                             atLeastOneAnalysisPerformed <- true
 131                             analysisPerformed <- true)
 132             } |> Async.Start)
 133
 134     window.Root.Loaded.AddHandler(fun obj args -> updateSourceImages ())
 135
 136     window.Root.ShowDialog() |> ignore
 137
 138     Logger.Log.RmListener(logListener)
 139
 140     lock monitor (fun () ->
 141         if not analysisPerformed
 142             then
 143                 analysisCancelled <- true
 144         atLeastOneAnalysisPerformed)