Update 20211218

2021-12-18 10:02:42 +01:00
parent 1254540139
commit 3ef1971def
842 changed files with 199916 additions and 17112 deletions
--- a/_B4A/SteriScan/CameraExClass.bas
+++ b/_B4A/SteriScan/CameraExClass.bas
@@ -0,0 +1,404 @@
+B4A=true
+Group=Default Group
+ModulesStructureVersion=1
+Type=Class
+Version=7.28
+@EndOfDesignText@
+'Class module
+'version 1.30
+'See this page for the list of constants:
+'http://developer.android.com/intl/fr/reference/android/hardware/Camera.Parameters.html
+'Note that you should use the constant values instead of the names.
+Sub Class_Globals
+	Private nativeCam As Object
+	Private cam As Camera
+	Private r As Reflector
+	Private target As Object
+	Private event As String
+	Public Front As Boolean
+	Type CameraInfoAndId (CameraInfo As Object, Id As Int)
+	Type CameraSize (Width As Int, Height As Int)
+	Private parameters As Object
+	
+	Public PreviewOrientation As Int
+End Sub
+
+Public Sub Initialize (Panel1 As Panel, FrontCamera As Boolean, TargetModule As Object, EventName As String)
+	target = TargetModule
+	event = EventName
+	Front = FrontCamera
+	Dim id As Int
+	id = FindCamera(Front).id
+	If id = -1 Then
+		Front = Not(Front) 'try different camera
+		id = FindCamera(Front).id
+		If id = -1 Then
+			ToastMessageShow("No camera found.", True)
+			Return
+		End If
+	End If
+	cam.Initialize2(Panel1, "camera", id)
+End Sub
+
+Private Sub FindCamera (frontCamera As Boolean) As CameraInfoAndId
+	Dim ci As CameraInfoAndId
+	Dim cameraInfo As Object
+	Dim cameraValue As Int
+	Log("findCamera")
+	If frontCamera Then cameraValue = 1 Else cameraValue = 0
+	cameraInfo = r.CreateObject("android.hardware.Camera$CameraInfo")
+	Dim numberOfCameras As Int = r.RunStaticMethod("android.hardware.Camera", "getNumberOfCameras", Null, Null)
+	Log(r.target)
+	Log(numberOfCameras)
+	For i = 0 To numberOfCameras - 1
+		r.RunStaticMethod("android.hardware.Camera", "getCameraInfo", Array As Object(i, cameraInfo), _
+			Array As String("java.lang.int", "android.hardware.Camera$CameraInfo"))
+		r.target = cameraInfo
+		Log("facing: " & r.GetField("facing") & ", " & cameraValue)
+		If r.GetField("facing") = cameraValue Then
+			ci.cameraInfo = r.target
+			ci.Id = i
+			Return ci
+		End If
+	Next
+	ci.id = -1
+	Return ci
+End Sub
+
+Private Sub SetDisplayOrientation
+	r.target = r.GetActivity
+	r.target = r.RunMethod("getWindowManager")
+	r.target = r.RunMethod("getDefaultDisplay")
+	r.target = r.RunMethod("getRotation")
+	Dim result, degrees As Int = r.target * 90
+	Dim ci As CameraInfoAndId = FindCamera(Front)
+	r.target = ci.CameraInfo
+	Dim orientation As Int = r.GetField("orientation")
+	If Front Then
+		PreviewOrientation = (orientation + degrees) Mod 360
+		result = PreviewOrientation
+		PreviewOrientation = (360 - PreviewOrientation) Mod 360
+	Else
+		PreviewOrientation = (orientation - degrees + 360) Mod 360
+		result = PreviewOrientation
+		Log("Preview Orientation: " & PreviewOrientation)
+	End If
+	r.target = nativeCam
+	r.RunMethod2("setDisplayOrientation", PreviewOrientation, "java.lang.int")
+	r.target = parameters
+	r.RunMethod2("setRotation", result, "java.lang.int")
+	CommitParameters
+End Sub
+
+Private Sub Camera_Ready (Success As Boolean)
+	If Success Then
+		r.target = cam
+		nativeCam = r.GetField("camera")
+		r.target = nativeCam
+		parameters = r.RunMethod("getParameters")
+		SetDisplayOrientation
+	Else
+		Log("success = false, " & LastException)
+	End If
+	CallSub2(target, event & "_ready", Success)
+End Sub
+'Uncomment this sub if you need to handle the Preview event
+Sub Camera_Preview (Data() As Byte)
+	If SubExists(target, event & "_preview") Then
+		CallSub2(target, event & "_preview", Data)
+	End If
+End Sub
+
+Public Sub TakePicture
+	cam.TakePicture
+End Sub
+
+Private Sub Camera_PictureTaken (Data() As Byte)
+	CallSub2(target, event & "_PictureTaken", Data)
+End Sub
+
+Public Sub StartPreview
+	cam.StartPreview
+End Sub
+
+Public Sub StopPreview
+	cam.StopPreview
+End Sub
+
+Public Sub Release
+	cam.Release
+End Sub
+
+'Saves the data received from PictureTaken event
+Public Sub SavePictureToFile(Data() As Byte, Dir As String, FileName As String)
+	Dim out As OutputStream = File.OpenOutput(Dir, FileName, False)
+	out.WriteBytes(Data, 0, Data.Length)
+	out.Close
+End Sub
+
+Public Sub SetParameter(Key As String, Value As String)
+	r.target = parameters
+	r.RunMethod3("set", Key, "java.lang.String", Value, "java.lang.String")
+End Sub
+
+Public Sub GetParameter(Key As String) As String
+	r.target = parameters
+	Return r.RunMethod2("get", Key, "java.lang.String")
+End Sub
+
+Public Sub CommitParameters
+	'Try
+	r.target = nativeCam
+	r.RunMethod4("setParameters", Array As Object(parameters), Array As String("android.hardware.Camera$Parameters"))
+	'Catch
+	'		ToastMessageShow("Error setting parameters.", True)
+	'		Log(LastException)
+	'	End Try
+End Sub
+
+Public Sub GetColorEffect As String
+	Return GetParameter("effect")
+End Sub
+
+Public Sub SetColorEffect(Effect As String)
+	SetParameter("effect", Effect)
+End Sub
+
+Public Sub GetSupportedPreviewSizes As CameraSize()
+	r.target = parameters
+	Dim list1 As List = r.RunMethod("getSupportedPreviewSizes")
+	Dim cs(list1.Size) As CameraSize
+	For i = 0 To list1.Size - 1
+		r.target = list1.get(i)
+		cs(i).Width = r.GetField("width")
+		cs(i).Height = r.GetField("height")
+	Next
+	Return cs
+End Sub
+
+Public Sub SetPreviewSize(Width As Int, Height As Int)
+	r.target = parameters
+	r.RunMethod3("setPreviewSize", Width, "java.lang.int", Height, "java.lang.int")
+End Sub
+Public Sub GetSupportedPicturesSizes As CameraSize()
+	r.target = parameters
+	Dim list1 As List = r.RunMethod("getSupportedPictureSizes")
+	Dim cs(list1.Size) As CameraSize
+	For i = 0 To list1.Size - 1
+		r.target = list1.get(i)
+		cs(i).Width = r.GetField("width")
+		cs(i).Height = r.GetField("height")
+	Next
+	Return cs
+End Sub
+
+Public Sub SetPictureSize(Width As Int, Height As Int)
+	r.target = parameters
+	r.RunMethod3("setPictureSize", Width, "java.lang.int", Height, "java.lang.int")
+End Sub
+
+Public Sub SetJpegQuality(Quality As Int)
+	r.target = parameters
+	r.RunMethod2("setJpegQuality", Quality, "java.lang.int")
+End Sub
+
+Public Sub SetFlashMode(Mode As String)
+	r.target = parameters
+	r.RunMethod2("setFlashMode", Mode, "java.lang.String")
+End Sub
+
+Public Sub GetFlashMode As String
+	r.target = parameters
+	Return r.RunMethod("getFlashMode")
+End Sub
+
+Public Sub GetSupportedFlashModes As List
+	r.target = parameters
+	Return r.RunMethod("getSupportedFlashModes")
+End Sub
+
+Public Sub GetSupportedColorEffects As List
+	r.target = parameters
+	Return r.RunMethod("getSupportedColorEffects")
+End Sub
+
+'Returns a list with the supported preview fps. Each item in the list is an array of two ints (minimum value and maximum value).
+Public Sub GetSupportedPreviewFpsRange As List
+	r.target = parameters
+	Return r.RunMethod("getSupportedPreviewFpsRange")
+End Sub
+'Returns the current preview fps range.
+'Range is a two elements array. The minimum value and maximum value will be stored in this array.
+Public Sub GetPreviewFpsRange(Range() As Int)
+	r.target = parameters
+	r.RunMethod4("getPreviewFpsRange", Array As Object(Range), Array As String("[I"))
+End Sub
+
+Public Sub SetPreviewFpsRange(MinValue As Int, MaxValue As Int)
+	r.target = parameters
+	r.RunMethod4("setPreviewFpsRange", Array As Object(MinValue, MaxValue), _
+		Array As String("java.lang.int", "java.lang.int"))
+End Sub
+
+Public Sub GetPreviewSize As CameraSize
+	r.target = parameters
+	r.target = r.RunMethod("getPreviewSize")
+	Dim cs As CameraSize
+	cs.Width = r.GetField("width")
+	cs.Height = r.GetField("height")
+	Return cs
+End Sub
+
+Public Sub GetPictureSize As CameraSize
+	r.target = parameters
+	r.target = r.RunMethod("getPictureSize")
+	Dim cs As CameraSize
+	cs.Width = r.GetField("width")
+	cs.Height = r.GetField("height")
+	Return cs
+End Sub
+
+'Converts a preview image formatted in YUV format to JPEG.
+'Note that you should not save every preview image as it will slow down the whole process.
+Public Sub PreviewImageToJpeg(data() As Byte, quality As Int) As Byte()
+	Dim size, previewFormat As Object
+	r.target = parameters
+	size = r.RunMethod("getPreviewSize")
+	previewFormat = r.RunMethod("getPreviewFormat")
+	r.target = size
+	Dim width = r.GetField("width"), height = r.GetField("height") As Int
+	Dim yuvImage As Object = r.CreateObject2("android.graphics.YuvImage", _
+		Array As Object(data, previewFormat, width, height, Null), _
+		Array As String("[B", "java.lang.int", "java.lang.int", "java.lang.int", "[I"))
+	r.target = yuvImage
+	Dim rect1 As Rect
+	rect1.Initialize(0, 0, r.RunMethod("getWidth"), r.RunMethod("getHeight"))
+	Dim out As OutputStream
+	out.InitializeToBytesArray(100)
+	r.RunMethod4("compressToJpeg", Array As Object(rect1, quality, out), _
+		Array As String("android.graphics.Rect", "java.lang.int", "java.io.OutputStream")) 
+	
+	Return out.ToBytesArray
+End Sub
+
+Public Sub GetSupportedFocusModes As List
+	r.target = parameters
+	Return r.RunMethod("getSupportedFocusModes")
+End Sub
+
+Public Sub SetContinuousAutoFocus
+	Dim modes As List = GetSupportedFocusModes
+	If modes.IndexOf("continuous-picture") > -1 Then
+		SetFocusMode("continuous-picture")
+	Else If modes.IndexOf("continuous-video") > -1 Then
+		SetFocusMode("continuous-video")
+	Else
+		Log("Continuous focus mode is not available")
+	End If
+End Sub
+
+Public Sub SetFocusMode(Mode As String)
+	r.target = parameters
+	r.RunMethod2("setFocusMode", Mode, "java.lang.String")
+End Sub
+
+Public Sub GetFocusDistances As Float()
+	Dim F(3) As Float
+	r.target = parameters
+	r.RunMethod4("getFocusDistances", Array As Object(F), Array As String("[F"))
+	Return F
+End Sub
+
+Public Sub GetSupportedPictureFormats As List
+	r.target = parameters
+	Return r.RunMethod("getSupportedPictureFormats")
+End Sub
+'This method should only be called if you need to immediately release the camera.
+'For example if you need to start another application that depends on the camera.
+Public Sub CloseNow
+	cam.Release
+	r.target = cam
+	r.RunMethod2("releaseCameras", True, "java.lang.boolean")
+End Sub
+'Calls AutoFocus and then takes the picture if focus was successfull.
+Public Sub FocusAndTakePicture
+	cam.AutoFocus
+End Sub
+
+
+Private Sub Camera_FocusDone (Success As Boolean)
+	If Success Then
+		Sleep(100)
+		TakePicture
+	Else
+		Log("AutoFocus error.")
+	End If
+End Sub
+
+Public Sub IsZoomSupported As Boolean
+	r.target = parameters
+	Return r.RunMethod("isZoomSupported")
+End Sub
+
+Public Sub GetMaxZoom As Int
+	r.target = parameters
+	Return r.RunMethod("getMaxZoom")
+End Sub
+
+Public Sub getZoom() As Int
+	r.target = parameters
+	Return r.RunMethod("getZoom")
+End Sub
+
+Public Sub setZoom(ZoomValue As Int)
+	r.target = parameters
+	r.RunMethod2("setZoom", ZoomValue, "java.lang.int")
+End Sub
+
+Public Sub getExposureCompensation As Int
+	r.target = parameters
+	Return r.RunMethod("getExposureCompensation")
+End Sub
+
+Public Sub setExposureCompensation(v As Int)
+	r.target = parameters
+	r.RunMethod2("setExposureCompensation", v, "java.lang.int")
+End Sub
+
+Public Sub getMinExposureCompensation As Int
+	r.target = parameters
+	Return r.RunMethod("getMinExposureCompensation")
+End Sub
+
+Public Sub getMaxExposureCompensation As Int
+	r.target = parameters
+	Return r.RunMethod("getMaxExposureCompensation")
+End Sub
+
+Public Sub SetFaceDetectionListener
+	Dim jo As JavaObject = nativeCam
+	Dim e As Object = jo.CreateEvent("android.hardware.Camera.FaceDetectionListener", "FaceDetection", Null)
+	jo.RunMethod("setFaceDetectionListener", Array(e))
+End Sub
+
+Private Sub FaceDetection_Event (MethodName As String, Args() As Object) As Object
+	Dim faces() As Object = Args(0)
+	For Each f As Object In faces
+		Dim jo As JavaObject = f
+		Dim faceRect As Rect = jo.GetField("rect")
+	Next
+	Return Null
+End Sub
+
+
+
+Public Sub StartFaceDetection
+	Dim jo As JavaObject = nativeCam
+	jo.RunMethod("startFaceDetection", Null)
+End Sub
+
+Public Sub StopFaceDetection
+	Dim jo As JavaObject = nativeCam
+	jo.RunMethod("stopFaceDetection", Null)
+End Sub
+