Parasitemia/ParasitemiaUI/Analysis.fs

   1 module ParasitemiaUI.Analysis
   2
   3 open System
   4 open System.Linq
   5 open System.Windows
   6 open System.Windows.Controls
   7
   8 open ParasitemiaUIControls
   9 open ParasitemiaCore.UnitsOfMeasure
  10 open ParasitemiaCore.Config
  11
  12 open Types
  13
  14 let showWindow (parent : Window) (state : State.State) : bool =
  15     let win = AnalysisWindow ()
  16     win.Owner <- parent
  17     win.Left <- (if parent.WindowState = WindowState.Maximized then 0. else parent.Left) + parent.ActualWidth / 2. - win.Width / 2.
  18     win.Top <- (if parent.WindowState = WindowState.Maximized then 0. else parent.Top) + parent.ActualHeight / 2. - win.Height / 2.
  19
  20     let logListener =
  21         {
  22             new Logger.IListener with
  23                 member this.NewEntry severity _header mess =
  24                     win.Dispatcher.Invoke (
  25                         fun () ->
  26                             win.textLog.Inlines.Add (Documents.Run mess)
  27                             win.textLog.Inlines.Add (Documents.LineBreak ())
  28                             win.scrollLog.ScrollToBottom ()
  29                     )
  30         }
  31
  32     Logger.Log.AddListener (logListener)
  33
  34     let minPPI = 1.
  35     let maxPPI = 10e6
  36     let parseAndValidatePPI (input : string) : float option =
  37         match Double.TryParse input with
  38         | true, value when value >= minPPI && value <= maxPPI -> Some value
  39         | _ -> None
  40
  41     let monitor = Object ()
  42     let mutable atLeastOneAnalysisPerformed = false
  43     let mutable analysisPerformed = false
  44     let mutable analysisCancelled = false
  45
  46     let updateSourceImages () =
  47         win.stackSourceImagesSelection.Children.Clear ()
  48         let width = int win.stackSourceImagesSelection.ActualWidth
  49         for srcImg in state.SourceImages do
  50             let imageSourceSelection = ImageSourceSelection (Tag = srcImg, Margin = Thickness 3.)
  51             imageSourceSelection.Tag <- srcImg
  52
  53             imageSourceSelection.txtImageNumber.Text <- string srcImg.RomanNum
  54             let height = srcImg.Img.Height * width / srcImg.Img.Width
  55             imageSourceSelection.imagePreview.Source <- BitmapSourceConvert.ToBitmapSource (srcImg.Img.Resize (width, height, Emgu.CV.CvEnum.Inter.Cubic))
  56             imageSourceSelection.chkSelection.IsChecked <- Nullable<bool> (srcImg.DateLastAnalysis.Ticks = 0L)
  57             imageSourceSelection.lblDateLastAnalysis.Content <- if srcImg.DateLastAnalysis.Ticks = 0L then "<Never>" else string srcImg.DateLastAnalysis
  58
  59             imageSourceSelection.txtResolution.Text <- if srcImg.DateLastAnalysis.Ticks = 0L then "" else string srcImg.Config.Parameters.resolution
  60
  61             for ppi in Utils.predefinedPPI do
  62                 let menu = MenuItem ()
  63                 menu.Header <- string ppi
  64                 menu.Click.AddHandler (fun obj args -> imageSourceSelection.txtResolution.Text <- string ppi.ppi)
  65                 imageSourceSelection.predefinedValuesMenu.Items.Add menu |> ignore
  66
  67             imageSourceSelection.butPPICalculator.Click.AddHandler (
  68                 fun obj args ->
  69                     match PPICalculator.showWindow win with
  70                     | Some resolution -> imageSourceSelection.txtResolution.Text <- string resolution
  71                     | None -> ()
  72             )
  73
  74             imageSourceSelection.txtResolution.PreviewTextInput.AddHandler (
  75                 fun obj args ->
  76                     let text = imageSourceSelection.txtResolution.Text + args.Text
  77                     args.Handled <- match parseAndValidatePPI text with Some _ -> false | None -> true
  78             )
  79
  80             imageSourceSelection.imagePreview.MouseLeftButtonDown.AddHandler (
  81                 fun obj args ->
  82                     let checkbox = imageSourceSelection.chkSelection
  83                     checkbox.IsChecked <- Nullable<bool> (not (checkbox.IsChecked.HasValue && checkbox.IsChecked.Value))
  84             )
  85
  86             win.stackSourceImagesSelection.Children.Add (imageSourceSelection) |> ignore
  87
  88     // Get the new parameters for each image. If an error occurs then 'None' is returned and a message box is displayed.
  89     // The boolean is 'true' if the image is selected (checked).
  90     let getInputImagesParameters () : (SourceImage * bool * Parameters) list option =
  91         let sourceImagesControls = win.stackSourceImagesSelection.Children |> Seq.cast<ImageSourceSelection>
  92         let parameters =
  93             seq {
  94                 for srcImgCtrl in sourceImagesControls do
  95                     let srcImg = srcImgCtrl.Tag :?> SourceImage
  96                     let isChecked = srcImgCtrl.chkSelection.IsChecked
  97                     match parseAndValidatePPI srcImgCtrl.txtResolution.Text with
  98                         | Some resolution ->
  99                             Some (srcImg, isChecked.HasValue && isChecked.Value, { srcImg.Config.Parameters with resolution = resolution * 1.<ppi> })
 100                         | None ->
 101                             MessageBox.Show (sprintf "No resolution defined for the image number %d" srcImg.Num, "No resolution defined", MessageBoxButton.OK, MessageBoxImage.Information) |> ignore
 102                             None
 103             } |> Seq.takeWhile (fun e -> e.IsSome) |> Seq.map (fun e -> e.Value) |> List.ofSeq
 104
 105         if parameters.Count () <> sourceImagesControls.Count () then
 106             None
 107         else
 108             Some parameters
 109
 110     win.butClose.Click.AddHandler (fun obj args -> win.Close ())
 111
 112     win.butStart.Click.AddHandler (
 113         fun obj args ->
 114             match getInputImagesParameters () with
 115             | Some imagesParameters ->
 116                 let imagesToProcess =
 117                     [
 118                         for srcImg, selected, parameters in imagesParameters do
 119                             srcImg.Config.Parameters <- parameters // Save parameters.
 120                             if selected then
 121                                 string srcImg.RomanNum, srcImg.Config, srcImg.Img
 122                     ]
 123
 124                 if imagesToProcess.IsEmpty then
 125                     MessageBox.Show ("No image selected", "Cannot start analysis", MessageBoxButton.OK, MessageBoxImage.Information) |> ignore
 126                 else
 127                     win.stackSourceImagesSelection.IsEnabled <- false
 128                     analysisPerformed <- false
 129                     win.butStart.IsEnabled <- false
 130                     win.textLog.Text <- ""
 131                     win.butClose.Content <- "Abort"
 132
 133                     async {
 134                         let maybeResults =
 135                             ParasitemiaCore.Analysis.doMultipleAnalysis
 136                                 imagesToProcess
 137                                 (Some (fun progress -> win.Dispatcher.Invoke (fun () -> win.progress.Value <- float progress); not analysisCancelled))
 138
 139                         lock monitor (
 140                             fun () ->
 141                                 match maybeResults with
 142                                 | Some results ->
 143                                     for id, cells in results do
 144                                         state.SetResult id cells
 145                                     Logger.Log.Info "All analyses terminated successfully"
 146                                     atLeastOneAnalysisPerformed <- true
 147                                     analysisPerformed <- true
 148                                 | None ->
 149                                     Logger.Log.Info "Analysis aborted"
 150
 151                                 win.Dispatcher.Invoke (
 152                                     fun () ->
 153                                         win.progress.Value <- if maybeResults.IsSome then 100. else 0.
 154                                         win.stackSourceImagesSelection.IsEnabled <- true
 155                                         win.butStart.IsEnabled <- true
 156                                         win.butClose.Content <- "Close"
 157                                         updateSourceImages ()
 158                                 )
 159                         )
 160                     } |> Async.Start
 161             | _ -> ()
 162     )
 163
 164     win.Loaded.AddHandler (fun obj args -> updateSourceImages ())
 165
 166     win.ShowDialog () |> ignore
 167
 168     Logger.Log.RmListener (logListener)
 169
 170     lock monitor (
 171         fun () ->
 172             if not analysisPerformed then
 173                 // To cancel the current analysis if one is running on the next call to the progress function.
 174                 analysisCancelled <- true
 175             atLeastOneAnalysisPerformed
 176     )