GUI (work in progress..)

[master-thesis.git] / Parasitemia / Parasitemia / GUI / PiaZ.fs

diff --git a/Parasitemia/Parasitemia/GUI/PiaZ.fs b/Parasitemia/Parasitemia/GUI/PiaZ.fs
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+// ParasitemIA Zipped file format.
+module Parasitemia.GUI.PiaZ
+
+open System.Windows
+open System.IO
+open System.IO.Compression
+
+open FSharp.Data
+
+open Emgu.CV
+open Emgu.CV.Structure
+
+open Types
+
+let extension = ".piaz"
+let filter = "PIA|*.piaz"
+
+type FileData = {
+    sources: SourceImage list
+    patientID: string }
+
+// The json type associated to a source image.
+type JSONSourceImage = JsonProvider<"""
+    {
+        "rbcs": [
+            {
+                "num": 1,
+                "infected": true,
+                "setManually": false,
+                "posX" : 42.5,
+                "posY" : 42.5,
+                "width" : 10.5,
+                "height" : 10.5,
+                "stainArea" : 10
+            }
+        ]
+    }
+""">
+
+// The json type associated to a file.
+type JSONMainInformation = JsonProvider<"""
+    {
+        "patientID": "1234abcd"
+    }
+""">
+
+let mainFilename = "info.json"
+let imageExtension = ".tiff"
+
+let save (filePath: string) (data: FileData) =
+    use file = ZipFile.Open(filePath, ZipArchiveMode.Update)
+
+    for e in List.ofSeq file.Entries do // 'ofSeq' to not iterate a collection currently modified.
+        e.Delete()
+
+    // Main JSON file.
+    let mainJSON = JSONMainInformation.Root(data.patientID)
+    let mainFile = file.CreateEntry(mainFilename, CompressionLevel.Fastest)
+    use mainFileWriter = new StreamWriter(mainFile.Open())
+    mainJSON.JsonValue.WriteTo(mainFileWriter, JsonSaveOptions.None)
+
+    // Write each images and the associated information.
+    for imgSrc in data.sources do
+        let imgFilename = (string imgSrc.num) + imageExtension
+        let imgEntry = file.CreateEntry(imgFilename, CompressionLevel.NoCompression) // FIXME: It seems a compression is applied to this file despite of the 'NoCompression' flag.
+        imgSrc.img.ToBitmap().Save(imgEntry.Open(), System.Drawing.Imaging.ImageFormat.Tiff)
+
+        let imgJSON =
+            JSONSourceImage.Root([| for rbc in imgSrc.rbcs ->
+                                        JSONSourceImage.Rbc(
+                                            rbc.num,
+                                            rbc.infected, rbc.setManually,
+                                            decimal rbc.center.X, decimal rbc.center.Y, decimal rbc.size.Width, decimal rbc.size.Height,
+                                            rbc.stainArea) |])
+
+        let imgJSONEntry = file.CreateEntry(imgFilename + ".json", CompressionLevel.Fastest)
+        use imgJSONFileWriter = new StreamWriter(imgJSONEntry.Open())
+        imgJSON.JsonValue.WriteTo(imgJSONFileWriter, JsonSaveOptions.None)
+
+
+let load (filePath: string) : FileData =
+    use file = ZipFile.Open(filePath, ZipArchiveMode.Read)
+
+    let mainFile = file.GetEntry(mainFilename)
+    let mainJSON = JSONMainInformation.Load(mainFile.Open())
+
+    let sources = [
+        let mutable imgNum = 0
+        for imgEntry in file.Entries do
+            let filename = imgEntry.Name
+            if filename.EndsWith(imageExtension)
+            then
+                let img = new Image<Bgr, byte>(new System.Drawing.Bitmap(imgEntry.Open(), false)) // FIXME: Should we dispose the bitmap?
+                imgNum <- imgNum + 1
+                let imgJSONEntry = file.GetEntry(filename + ".json")
+                let imgJSON = JSONSourceImage.Load(imgJSONEntry.Open())
+                yield { num = imgNum; img = img; rbcs = [ for rbc in imgJSON.Rbcs ->
+                                                            { num = rbc.Num;
+                                                              infected = rbc.Infected; setManually = rbc.SetManually;
+                                                              center = Point(float rbc.PosX, float rbc.PosY); size = Size(float rbc.Width, float rbc.Height);
+                                                              stainArea = rbc.StainArea } ] } ]
+    { sources = sources; patientID = mainJSON.PatientId }
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