Add some key shortcut.
[master-thesis.git] / Parasitemia / ParasitemiaUI / GUI.fs
1 module ParasitemiaUI.GUI
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 Logger
17
18 open ParasitemiaCore.Config
19 open ParasitemiaCore.Utils
20 open Types
21
22 let run (defaultConfig : Config) (fileToOpen : string option) =
23 let app = new Application()
24 let win = Views.MainWindow()
25
26 let state = State.State(defaultConfig)
27 let mutable currentScale = 1.
28 let mutable displayHealthy = false
29 let warningBelowNumberOfRBC = 1000
30
31 // Initializations.
32 let canvasCurrentImageColor = win.canvasCurrentImage.Background
33 win.menuHightlightRBC.IsChecked <- displayHealthy
34
35 // Utils.
36 let extractRBCPreview (img : Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte>) (rbc : RBC) : Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> =
37 let rbcWidth = rbc.size.Width
38 let rbcHeight = rbc.size.Height
39 let x = rbc.center.X - rbcWidth / 2. |> roundInt
40 let y = rbc.center.Y - rbcHeight / 2. |> roundInt
41 let w = roundInt rbcWidth
42 let h = roundInt rbcHeight
43 img.GetSubRect(System.Drawing.Rectangle(System.Drawing.Point((if x < 0 then 0 else x), (if y < 0 then 0 else y)),
44 System.Drawing.Size((if x + w >= img.Width then img.Width - x else w),
45 (if y + h >= img.Height then img.Height - y else h))))
46
47 let setRBCFrameStyle (srcImg : SourceImage) (rbc : RBC) (frame : Views.RBCFrame) =
48 frame.Opacity <- if displayHealthy || rbc.setManually || rbc.infected then 1. else 0.
49 let color = if rbc.infected then srcImg.InfectedRBCColor else srcImg.HealthyRBCColor
50 frame.manuallyAdded.Visibility <- if rbc.setManually then Visibility.Visible else Visibility.Hidden
51 frame.manuallyAdded.Fill <- color
52 frame.border.Stroke <- color
53
54 let RBCFrameFromExisting (srcImg : SourceImage) (rbc : RBC) (frame : Views.RBCFrame) : Views.RBCFrame =
55 frame.Visibility <- Visibility.Visible
56 frame.Height <- rbc.size.Height
57 frame.Width <- rbc.size.Width
58 frame.Tag <- rbc
59 setRBCFrameStyle srcImg rbc frame
60 frame.border.StrokeThickness <- 1.
61 frame.txtRBCNumber.Text <- rbc.num.ToString()
62 frame
63
64 let updateDocumentStatus () =
65 win.txtDocumentStatus.Text <- if state.FilePath = "" then "<New document>" else state.FilePath
66
67 let statusMessageTimer = Threading.DispatcherTimer()
68 statusMessageTimer.Tick.AddHandler(fun obj args -> statusMessageTimer.Stop(); win.txtMessageStatus.Text <- "")
69 statusMessageTimer.Interval <- TimeSpan(0, 0, 2)
70 let displayStatusMessage (message : string) =
71 win.txtMessageStatus.Text <- message
72 statusMessageTimer.Stop()
73 statusMessageTimer.Start()
74
75 let highlightRBCFrame (frame : Views.RBCFrame) (highlight : bool) =
76 let rbc = frame.Tag :?> RBC
77 if highlight then
78 frame.border.StrokeThickness <- 3.
79 if not rbc.infected && not rbc.setManually && not displayHealthy then frame.Opacity <- 1.
80 else
81 frame.border.StrokeThickness <- 1.
82 if not rbc.infected && not rbc.setManually && not displayHealthy then frame.Opacity <- 0.
83
84 let zoomToRBC (rbc : RBC) =
85 win.scrollViewCurrentImage.ScrollToHorizontalOffset(rbc.center.X * currentScale - win.scrollViewCurrentImage.ViewportWidth / 2. + win.borderCurrentImage.BorderThickness.Left)
86 win.scrollViewCurrentImage.ScrollToVerticalOffset(rbc.center.Y * currentScale - win.scrollViewCurrentImage.ViewportHeight / 2. + win.borderCurrentImage.BorderThickness.Top)
87
88
89 let txtImageName_TextChanged =
90 TextChangedEventHandler(fun obj args -> state.CurrentImage |> Option.iter(fun srcImg -> state.SetName srcImg win.txtImageName.Text))
91
92 let updateCurrentImageInformation () =
93 win.txtImageName.TextChanged.RemoveHandler(txtImageName_TextChanged)
94 win.txtImageInformation1.Inlines.Clear()
95 win.txtImageInformation2.Inlines.Clear()
96 win.txtImageName.Text <- ""
97
98 match state.CurrentImage with
99 | Some srcImg ->
100 win.gridImageInformation.Visibility <- Visibility.Visible
101 win.txtImageName.Text <- srcImg.name
102 win.txtImageName.TextChanged.AddHandler(txtImageName_TextChanged)
103
104 // The left part.
105 let parasitemiaStr = Utils.percentText (state.ImageParasitemia srcImg)
106 win.txtImageInformation1.Inlines.Add(Documents.Run("Parasitemia: ", FontWeight = FontWeights.Bold))
107 win.txtImageInformation1.Inlines.Add(parasitemiaStr)
108 win.txtImageInformation1.Inlines.Add(Documents.LineBreak())
109
110 win.txtImageInformation1.Inlines.Add(Documents.Run("Last analysis: ", FontWeight = FontWeights.Bold))
111 win.txtImageInformation1.Inlines.Add(Documents.Run(if srcImg.dateLastAnalysis.Ticks = 0L then "<Never>" else srcImg.dateLastAnalysis.ToLocalTime().ToString()))
112
113 // The right part part.
114 win.txtImageInformation2.Inlines.Add(Documents.Run("Added infected erythrocyte: ", FontWeight = FontWeights.Bold))
115 win.txtImageInformation2.Inlines.Add(Documents.Run((state.ImageNbManuallyChangedRBCStr srcImg true) + " " + (state.ImageManuallyChangedRBCStr srcImg true)))
116 win.txtImageInformation2.Inlines.Add(Documents.LineBreak())
117 win.txtImageInformation2.Inlines.Add(Documents.Run("Removed infected erythrocyte: ", FontWeight = FontWeights.Bold))
118 win.txtImageInformation2.Inlines.Add(Documents.Run((state.ImageNbManuallyChangedRBCStr srcImg false) + " " + (state.ImageManuallyChangedRBCStr srcImg false)))
119
120 | _ ->
121 win.gridImageInformation.Visibility <- Visibility.Hidden
122
123 let updateGlobalParasitemia () =
124 win.txtGlobalParasitemia.Inlines.Clear()
125 let total, infected = state.GlobalParasitemia
126 win.txtGlobalParasitemia.Inlines.Add(Documents.Run(Utils.percentText (total, infected), FontWeight = FontWeights.Bold))
127 if total > 0 && total < warningBelowNumberOfRBC then
128 win.txtGlobalParasitemia.Inlines.Add(
129 Documents.Run(
130 sprintf " Warning: the number of erythrocytes should be above %d" warningBelowNumberOfRBC,
131 FontWeight = FontWeights.Bold,
132 Foreground = Brushes.Red
133 )
134 )
135
136 let updateViewportPreview () =
137 for preview in win.stackPreviews.Children |> Seq.cast<Views.ImageSourcePreview> do
138 let srcImg = preview.Tag :?> SourceImage
139 if Some srcImg = state.CurrentImage then
140 preview.viewport.Visibility <- Visibility.Visible
141
142 let canvasWidth = win.canvasCurrentImage.ActualWidth * currentScale
143 let canvasHeight = win.canvasCurrentImage.ActualHeight * currentScale
144 let previewWidth = (preview.ActualWidth - preview.BorderThickness.Left - preview.BorderThickness.Right)
145 let previewHeight = (preview.ActualHeight - preview.BorderThickness.Top - preview.BorderThickness.Bottom)
146
147 let marginLeft = previewWidth * (win.scrollViewCurrentImage.HorizontalOffset - win.borderCurrentImage.BorderThickness.Left) / canvasWidth - 2.
148 let marginRight = previewWidth * (canvasWidth - (win.scrollViewCurrentImage.HorizontalOffset - win.borderCurrentImage.BorderThickness.Right) - win.scrollViewCurrentImage.ViewportWidth) / canvasWidth - 2.
149 let marginTop = previewHeight * (win.scrollViewCurrentImage.VerticalOffset - win.borderCurrentImage.BorderThickness.Top) / canvasHeight - 2.
150 let marginBottom = previewHeight * (canvasHeight - (win.scrollViewCurrentImage.VerticalOffset - win.borderCurrentImage.BorderThickness.Bottom) - win.scrollViewCurrentImage.ViewportHeight) / canvasHeight - 2.
151
152 preview.viewport.Margin <-
153 Thickness(
154 marginLeft,
155 marginTop,
156 marginRight,
157 marginBottom
158 )
159 else
160 preview.viewport.Visibility <- Visibility.Hidden
161
162 let rec setAsInfected (srcImg : SourceImage) (rbc : RBC) (infected : bool) =
163 state.SetAsInfected rbc infected
164 win.canvasCurrentImage.Children
165 |> Seq.cast<Views.RBCFrame>
166 |> Seq.iter (
167 fun frame ->
168 if (frame.Tag :?> RBC) = rbc then
169 setRBCFrameStyle srcImg rbc frame
170 )
171 updateRBCFramesPreview ()
172 updateCurrentImageInformation ()
173 updateGlobalParasitemia ()
174
175 and RBCFrame (srcImg : SourceImage) (rbc : RBC) : Views.RBCFrame =
176 let frame = RBCFrameFromExisting srcImg rbc (Views.RBCFrame())
177 frame.SetValue(Panel.ZIndexProperty, Int32.MaxValue - rbc.num) // To be sure the
178 frame.menuRBCSetAsHealthy.Click.AddHandler(fun obj args -> setAsInfected srcImg (frame.Tag :?> RBC) false)
179 frame.menuRBCSetAsInfected.Click.AddHandler(fun obj args -> setAsInfected srcImg (frame.Tag :?> RBC) true)
180 frame.ContextMenuOpening.AddHandler(
181 fun obj args ->
182 if (frame.Tag :?> RBC).infected then
183 frame.menuRBCSetAsHealthy.Visibility <- Visibility.Visible
184 frame.menuRBCSetAsInfected.Visibility <- Visibility.Collapsed
185 else
186 frame.menuRBCSetAsHealthy.Visibility <- Visibility.Collapsed
187 frame.menuRBCSetAsInfected.Visibility <- Visibility.Visible
188 )
189 frame.ContextMenuClosing.AddHandler(fun obj args -> if not frame.IsMouseOver then highlightRBCFrame frame false )
190 frame.MouseEnter.AddHandler(fun obj args -> highlightRBCFrame frame true)
191 frame.MouseLeave.AddHandler(fun obj args -> if not frame.grid.ContextMenu.IsOpen then highlightRBCFrame frame false)
192 frame
193
194 and updateRBCFramesPreview () =
195 match state.CurrentImage with
196 | Some srcImg ->
197 let mutable currentPreview = 0
198 for rbc in srcImg.rbcs |> List.filter (fun rbc -> displayHealthy || rbc.infected) do
199 let previewInfected =
200 if currentPreview < win.stackRBC.Children.Count then
201 RBCFrameFromExisting srcImg rbc (win.stackRBC.Children.[currentPreview] :?> Views.RBCFrame)
202 else
203 let f = RBCFrame srcImg rbc
204 f.MouseLeftButtonUp.AddHandler(fun obj args -> zoomToRBC (f.Tag :?> RBC))
205 win.stackRBC.Children.Add(f) |> ignore
206 f
207
208 currentPreview <- currentPreview + 1
209
210 previewInfected.Height <- win.stackRBC.ActualHeight
211 previewInfected.Width <- win.stackRBC.ActualHeight * rbc.size.Width / rbc.size.Height
212 previewInfected.border.Fill <- ImageBrush(BitmapSourceConvert.ToBitmapSource(extractRBCPreview srcImg.img rbc))
213
214 win.stackRBC.Children.RemoveRange(currentPreview, win.stackRBC.Children.Count - currentPreview)
215 | _ -> ()
216
217 updateViewportPreview ()
218
219 let updateRBCFramesCurrent () =
220 match state.CurrentImage with
221 | Some srcImg ->
222 let mutable currentCanvas = 0
223 for rbc in srcImg.rbcs do
224 let frame =
225 if currentCanvas < win.canvasCurrentImage.Children.Count then
226 RBCFrameFromExisting srcImg rbc (win.canvasCurrentImage.Children.[currentCanvas] :?> Views.RBCFrame)
227 else
228 let f = RBCFrame srcImg rbc
229 f.Opacity <- 0.7
230 win.canvasCurrentImage.Children.Add(f) |> ignore
231 f
232
233 currentCanvas <- currentCanvas + 1
234
235 Canvas.SetLeft(frame, rbc.center.X - rbc.size.Width / 2.)
236 Canvas.SetTop(frame, rbc.center.Y - rbc.size.Height / 2.)
237
238 for i in currentCanvas .. win.canvasCurrentImage.Children.Count - 1 do
239 win.canvasCurrentImage.Children.[i].Visibility <- Visibility.Hidden
240 | _ -> ()
241
242 let askDocumentPathToSave () : string option =
243 let dialog = SaveFileDialog(AddExtension = true, DefaultExt = PiaZ.extension, Filter = PiaZ.filter)
244
245 if state.FilePath <> "" then
246 dialog.FileName <- FileInfo(state.FilePath).Name
247 elif state.PatientID <> "" then
248 dialog.FileName <- state.PatientID + PiaZ.extension
249
250 let res = dialog.ShowDialog()
251 if res.HasValue && res.Value then
252 Some dialog.FileName
253 else
254 None
255
256 let saveCurrentDocument () =
257 try
258 if state.FilePath = "" then
259 match askDocumentPathToSave () with
260 | Some filepath ->
261 state.FilePath <- filepath
262 state.Save()
263 | _ -> ()
264 else
265 state.Save()
266 updateDocumentStatus ()
267 displayStatusMessage "Document saved"
268 with
269 | :? IOException as ex ->
270 Log.Error(ex.ToString())
271 MessageBox.Show(sprintf "The document cannot be save in \"%s\"" state.FilePath, "Error saving the document", MessageBoxButton.OK, MessageBoxImage.Error) |> ignore
272
273 let saveCurrentDocumentAsNewFile () =
274 match askDocumentPathToSave () with
275 | Some filepath ->
276 state.FilePath <- filepath
277 saveCurrentDocument ()
278 | _ -> ()
279
280 // Ask the use to save the current document if neccessary.
281 let askSaveCurrent () =
282 if state.AlteredSinceLastSave then
283 match MessageBox.Show("Would you like to save the current document?", "Saving the current document", MessageBoxButton.YesNo, MessageBoxImage.Question) with
284 | MessageBoxResult.Yes -> saveCurrentDocument ()
285 | _ -> ()
286
287 let updateCurrentImage () =
288 match state.CurrentImage with
289 | Some srcImg ->
290 win.imgLogos.Visibility <- Visibility.Collapsed
291
292 // Highlight the preview.
293 win.stackPreviews.Children
294 |> Seq.cast<Views.ImageSourcePreview>
295 |> Seq.iter (fun preview -> preview.border.BorderThickness <- Thickness(if preview.Tag = (srcImg :> Object) then 3. else 0.))
296
297 win.canvasCurrentImage.Height <- float srcImg.img.Height
298 win.canvasCurrentImage.Width <- float srcImg.img.Width
299 win.canvasCurrentImage.Background <- ImageBrush(BitmapSourceConvert.ToBitmapSource(srcImg.img))
300
301 updateRBCFramesCurrent ()
302 updateRBCFramesPreview ()
303
304 | None ->
305 win.imgLogos.Visibility <- Visibility.Visible
306
307 win.stackRBC.Children.Clear()
308 win.canvasCurrentImage.Children.Clear()
309 win.canvasCurrentImage.Background <- canvasCurrentImageColor
310
311 updateCurrentImageInformation ()
312
313 let setCurrentImage (srcImg : SourceImage) =
314 if state.CurrentImage.IsNone || state.CurrentImage.Value <> srcImg then
315 state.CurrentImage <- Some srcImg
316 updateCurrentImage ()
317
318 let addPreview (srcImg : SourceImage) =
319 let imgCtrl = Views.ImageSourcePreview(Margin = Thickness(3.))
320
321 imgCtrl.menuRemoveImage.Click.AddHandler(fun obj args ->
322 win.stackPreviews.Children.Remove(imgCtrl)
323 let srcImg = imgCtrl.Tag :?> SourceImage
324 let currentRemoved = Some srcImg = state.CurrentImage
325 state.RemoveSourceImage srcImg
326 if currentRemoved then
327 updateCurrentImage()
328
329 updateGlobalParasitemia()
330
331 // Update image numbers.
332 win.stackPreviews.Children |> Seq.cast<Views.ImageSourcePreview> |> Seq.iter (fun imgPreview -> imgPreview.txtImageNumber.Text <- (imgPreview.Tag :?> SourceImage).num.ToString()))
333
334 imgCtrl.Tag <- srcImg
335 imgCtrl.txtImageNumber.Text <- srcImg.num.ToString()
336 let width = 200
337 let height = srcImg.img.Height * width / srcImg.img.Width
338 imgCtrl.imagePreview.Source <- BitmapSourceConvert.ToBitmapSource(srcImg.img.Resize(width, height, Emgu.CV.CvEnum.Inter.Cubic))
339 win.stackPreviews.Children.Add(imgCtrl) |> ignore
340
341 // Zoom to a mouse position into the control 'imgCtrl'.
342 let zoomTo (mousePos : Point) =
343 let canvasW = win.canvasCurrentImage.ActualWidth * currentScale
344 let canvasH = win.canvasCurrentImage.ActualHeight * currentScale
345 let centerX = (mousePos.X - imgCtrl.BorderThickness.Left) / (imgCtrl.ActualWidth - imgCtrl.BorderThickness.Left) * canvasW
346 let centerY = (mousePos.Y - imgCtrl.BorderThickness.Top) / (imgCtrl.ActualHeight - imgCtrl.BorderThickness.Top) * canvasH
347 win.scrollViewCurrentImage.ScrollToHorizontalOffset(centerX - win.scrollViewCurrentImage.ViewportWidth / 2. + win.borderCurrentImage.BorderThickness.Left)
348 win.scrollViewCurrentImage.ScrollToVerticalOffset(centerY - win.scrollViewCurrentImage.ViewportHeight / 2. + win.borderCurrentImage.BorderThickness.Top)
349
350 imgCtrl.MouseLeftButtonDown.AddHandler(fun obj args ->
351 setCurrentImage (state.SourceImages |> Seq.find (fun srcImg -> (srcImg :> Object) = imgCtrl.Tag))
352 imgCtrl.UpdateLayout()
353 zoomTo (args.GetPosition(imgCtrl))
354 imgCtrl.CaptureMouse() |> ignore
355 )
356
357 imgCtrl.MouseMove.AddHandler(fun obj args ->
358 if imgCtrl.IsMouseCaptured then
359 zoomTo (args.GetPosition(imgCtrl))
360 )
361
362 imgCtrl.MouseLeftButtonUp.AddHandler(fun obj args ->
363 if imgCtrl.IsMouseCaptured then
364 imgCtrl.ReleaseMouseCapture()
365 )
366
367 let updatePreviews () =
368 win.stackPreviews.Children.Clear ()
369 for srcImg in state.SourceImages do
370 addPreview srcImg
371 updateCurrentImage ()
372
373 let updateGUI () =
374 win.txtPatient.Text <- state.PatientID
375 updatePreviews ()
376 updateGlobalParasitemia ()
377 updateDocumentStatus ()
378
379 let loadFile (filepath : string) =
380 askSaveCurrent ()
381 let previousFilePath = state.FilePath
382 try
383 state.FilePath <- filepath
384 state.Load()
385 updateGUI ()
386 with
387 | :? IOException as ex ->
388 Log.Error(ex.ToString())
389 state.FilePath <- previousFilePath
390 MessageBox.Show(sprintf "The document cannot be loaded from \"%s\"" filepath, "Error loading the document", MessageBoxButton.OK, MessageBoxImage.Error) |> ignore
391
392 let askLoadFile () =
393 let dialog = OpenFileDialog(Filter = PiaZ.filter)
394 let res = dialog.ShowDialog()
395 if res.HasValue && res.Value then
396 loadFile dialog.FileName
397
398 let newFile () =
399 askSaveCurrent ()
400 state.Reset()
401 updateGUI()
402
403 let exportResults () =
404 let extension = ".txt"
405 let dialog = SaveFileDialog(AddExtension = true, DefaultExt = extension)
406
407 if state.FilePath <> "" then
408 dialog.FileName <- Path.GetFileNameWithoutExtension(state.FilePath) + extension
409 elif state.PatientID <> "" then
410 dialog.FileName <- state.PatientID + extension
411
412 let res = dialog.ShowDialog()
413 if res.HasValue && res.Value then
414 try
415 Export.exportResults state dialog.FileName
416 with
417 | :? IOException as ex ->
418 Log.Error(ex.ToString())
419 MessageBox.Show(sprintf "The results cannot be exported in \"%s\"" state.FilePath, "Error exporting the files", MessageBoxButton.OK, MessageBoxImage.Error) |> ignore
420
421 let importImage () =
422 let dialog = OpenFileDialog(Filter = "Image Files|*.png;*.jpg;*.tif;*.tiff", Multiselect = true)
423 let res = dialog.ShowDialog()
424 if res.HasValue && res.Value then
425 let noSourceImage = state.SourceImages.Count() = 0
426
427 for filename in dialog.FileNames do
428 try
429 let srcImg = state.AddSourceImage filename defaultConfig
430 addPreview srcImg
431 with
432 | _ as ex ->
433 Log.Error(ex.ToString())
434 MessageBox.Show(sprintf "Unable to read the image from \"%s\"" filename, "Error adding an image", MessageBoxButton.OK, MessageBoxImage.Error) |> ignore
435
436 updateGlobalParasitemia ()
437
438 if noSourceImage then
439 updateCurrentImage ()
440
441 let showAnalysisWindow () =
442 if Analysis.showWindow win state then
443 updateGlobalParasitemia ()
444 updateCurrentImage ()
445
446 let setHighlightRBC (highlight : bool) =
447 displayHealthy <- highlight
448 updateRBCFramesPreview ()
449 updateRBCFramesCurrent ()
450
451 win.txtPatient.TextChanged.AddHandler(fun obj args -> state.PatientID <- win.txtPatient.Text)
452
453 win.menuExit.Click.AddHandler(fun obj args -> win.Close())
454 win.menuSave.Click.AddHandler(fun obj args -> saveCurrentDocument ())
455 win.menuSaveAs.Click.AddHandler(fun obj args -> saveCurrentDocumentAsNewFile ())
456 win.menuOpen.Click.AddHandler(fun obj args -> askLoadFile ())
457 win.menuNew.Click.AddHandler(fun obj args -> newFile ())
458 win.menuExportResults.Click.AddHandler(fun obj args -> exportResults ())
459
460 win.menuAddSourceImage.Click.AddHandler(fun obj args -> importImage ())
461
462 win.menuAnalysis.SubmenuOpened.AddHandler(fun obj args -> win.menuStartAnalysis.IsEnabled <- state.SourceImages.Count() > 0)
463
464 win.menuStartAnalysis.Click.AddHandler(fun obj args -> showAnalysisWindow ())
465
466 win.menuHightlightRBC.Click.AddHandler(fun obj args -> setHighlightRBC win.menuHightlightRBC.IsChecked)
467
468 win.menuAbout.Click.AddHandler(fun obj args -> About.showWindow win)
469
470 win.Closing.AddHandler(fun obj args -> askSaveCurrent ())
471
472 // Zoom on the current image.
473 let adjustCurrentImageBorders (deltaX : float) (deltaY : float) =
474 win.borderCurrentImage.BorderThickness <-
475 Thickness(
476 (win.scrollViewCurrentImage.ViewportWidth + deltaX) / 2.,
477 (win.scrollViewCurrentImage.ViewportHeight + deltaY) / 2.,
478 (win.scrollViewCurrentImage.ViewportWidth + deltaX) / 2.,
479 (win.scrollViewCurrentImage.ViewportHeight + deltaY) / 2.
480 )
481
482 win.canvasCurrentImage.SizeChanged.AddHandler(fun obj args ->
483 let deltaX = args.NewSize.Width - args.PreviousSize.Width
484 let deltaY = args.NewSize.Height - args.PreviousSize.Height
485 if deltaX > 0.5 || deltaY > 0.5 then
486 adjustCurrentImageBorders 0.0 0.0
487 // Center the view at the center of the image initialy.
488 win.scrollViewCurrentImage.UpdateLayout()
489 win.scrollViewCurrentImage.ScrollToHorizontalOffset(win.borderCurrentImage.ActualWidth / 2. - win.scrollViewCurrentImage.ViewportWidth / 2.)
490 win.scrollViewCurrentImage.ScrollToVerticalOffset(win.borderCurrentImage.ActualHeight / 2. - win.scrollViewCurrentImage.ViewportHeight / 2.)
491 )
492
493 win.scrollViewCurrentImage.SizeChanged.AddHandler(fun obj args ->
494 let deltaX = args.NewSize.Width - args.PreviousSize.Width
495 let deltaY = args.NewSize.Height - args.PreviousSize.Height
496 adjustCurrentImageBorders deltaX deltaY
497 win.scrollViewCurrentImage.ScrollToHorizontalOffset(win.scrollViewCurrentImage.HorizontalOffset + deltaX / 8.)
498 win.scrollViewCurrentImage.ScrollToVerticalOffset(win.scrollViewCurrentImage.VerticalOffset + deltaY / 8.)
499 )
500
501 let mutable maxScale = 4.
502 let mutable minScale = 0.25
503 let currentImageScaleTransform = ScaleTransform()
504 win.canvasCurrentImage.LayoutTransform <- currentImageScaleTransform
505 win.borderCurrentImage.PreviewMouseWheel.AddHandler(fun obj args ->
506 let scaleFactor = if args.Delta > 0 then 2.0 else 0.5
507 if scaleFactor > 1. && currentScale < maxScale || scaleFactor < 1. && currentScale > minScale then
508 let previousScale = currentScale
509 currentScale <-
510 let newScale = currentScale * scaleFactor
511 if newScale > maxScale then maxScale elif newScale < minScale then minScale else newScale
512 let realScaleFactor = currentScale / previousScale
513
514 let centerX = win.scrollViewCurrentImage.HorizontalOffset + win.scrollViewCurrentImage.ViewportWidth / 2. - win.borderCurrentImage.BorderThickness.Left
515 let centerY = win.scrollViewCurrentImage.VerticalOffset + win.scrollViewCurrentImage.ViewportHeight / 2. - win.borderCurrentImage.BorderThickness.Top
516
517 currentImageScaleTransform.ScaleX <- currentScale
518 currentImageScaleTransform.ScaleY <- currentScale
519
520 win.scrollViewCurrentImage.ScrollToHorizontalOffset(centerX * realScaleFactor - win.scrollViewCurrentImage.ViewportWidth / 2. + win.borderCurrentImage.BorderThickness.Left)
521 win.scrollViewCurrentImage.ScrollToVerticalOffset(centerY * realScaleFactor - win.scrollViewCurrentImage.ViewportHeight / 2. + win.borderCurrentImage.BorderThickness.Top)
522
523 args.Handled <- true
524 )
525
526 // Pan on the current image.
527 let mutable scrollStartPosition = Point(0., 0.)
528 let mutable scrollStartOffsetX = 0.
529 let mutable scrollStartOffsetY = 0.
530 win.borderCurrentImage.PreviewMouseLeftButtonDown.AddHandler(fun obj args ->
531 scrollStartPosition <- args.GetPosition(win.scrollViewCurrentImage)
532 scrollStartOffsetX <- win.scrollViewCurrentImage.HorizontalOffset
533 scrollStartOffsetY <- win.scrollViewCurrentImage.VerticalOffset
534 win.borderCurrentImage.Cursor <- Input.Cursors.ScrollAll
535 win.borderCurrentImage.CaptureMouse() |> ignore
536 args.Handled <- true
537 )
538
539 win.borderCurrentImage.PreviewMouseMove.AddHandler(fun obj args ->
540 if win.borderCurrentImage.IsMouseCaptured then
541 let position = args.GetPosition(win.scrollViewCurrentImage)
542 let deltaX = scrollStartPosition.X - position.X
543 let deltaY = scrollStartPosition.Y - position.Y
544 win.scrollViewCurrentImage.ScrollToHorizontalOffset(deltaX + scrollStartOffsetX)
545 win.scrollViewCurrentImage.ScrollToVerticalOffset(deltaY + scrollStartOffsetY)
546
547 args.Handled <- true
548 )
549
550 win.borderCurrentImage.PreviewMouseLeftButtonUp.AddHandler(fun obj args ->
551 if win.borderCurrentImage.IsMouseCaptured then
552 win.borderCurrentImage.Cursor <- Input.Cursors.Arrow
553 win.borderCurrentImage.ReleaseMouseCapture()
554 args.Handled <- true
555 )
556
557 // Shortcuts.
558 // Save.
559 win.InputBindings.Add(
560 Input.KeyBinding(
561 ViewModule.FunCommand((fun obj -> saveCurrentDocument ()), (fun obj -> true)),
562 Input.KeyGesture(Input.Key.S, Input.ModifierKeys.Control)
563 )
564 ) |> ignore
565
566 // Save as.
567 win.InputBindings.Add(
568 Input.KeyBinding(
569 ViewModule.FunCommand((fun obj -> saveCurrentDocumentAsNewFile ()), (fun obj -> true)),
570 Input.KeyGesture(Input.Key.S, Input.ModifierKeys.Control ||| Input.ModifierKeys.Shift)
571 )
572 ) |> ignore
573
574 // Open.
575 win.InputBindings.Add(
576 Input.KeyBinding(
577 ViewModule.FunCommand((fun obj -> askLoadFile ()), (fun obj -> true)),
578 Input.KeyGesture(Input.Key.O, Input.ModifierKeys.Control)
579 )
580 ) |> ignore
581
582 // New file.
583 win.InputBindings.Add(
584 Input.KeyBinding(
585 ViewModule.FunCommand((fun obj -> newFile ()), (fun obj -> true)),
586 Input.KeyGesture(Input.Key.N, Input.ModifierKeys.Control)
587 )
588 ) |> ignore
589
590 // Export results.
591 win.InputBindings.Add(
592 Input.KeyBinding(
593 ViewModule.FunCommand((fun obj -> exportResults ()), (fun obj -> true)),
594 Input.KeyGesture(Input.Key.E, Input.ModifierKeys.Control)
595 )
596 ) |> ignore
597
598 // Import an image.
599 win.InputBindings.Add(
600 Input.KeyBinding(
601 ViewModule.FunCommand((fun obj -> importImage ()), (fun obj -> true)),
602 Input.KeyGesture(Input.Key.A, Input.ModifierKeys.Control)
603 )
604 ) |> ignore
605
606 // Show analysis dialog.
607 win.InputBindings.Add(
608 Input.KeyBinding(
609 ViewModule.FunCommand((fun obj -> showAnalysisWindow ()), (fun obj -> state.SourceImages.Count() > 0)),
610 Input.KeyGesture(Input.Key.Y, Input.ModifierKeys.Control)
611 )
612 ) |> ignore
613
614 // Toggle RBC highlight.
615 win.InputBindings.Add(
616 Input.KeyBinding(
617 ViewModule.FunCommand(
618 (
619 fun obj ->
620 win.menuHightlightRBC.IsChecked <- not win.menuHightlightRBC.IsChecked
621 setHighlightRBC win.menuHightlightRBC.IsChecked
622 ),
623 (fun obj -> true)
624 ),
625 Input.KeyGesture(Input.Key.H, Input.ModifierKeys.Control)
626 )
627 ) |> ignore
628
629 // Viewport preview.
630 win.scrollViewCurrentImage.ScrollChanged.AddHandler(fun obj args -> updateViewportPreview ())
631
632 updateDocumentStatus ()
633 win.gridImageInformation.Visibility <- Visibility.Hidden
634
635 win.Show()
636
637 match fileToOpen with
638 | Some filepath -> loadFile filepath
639 | None -> ()
640
641 app.Run()