Imports System
Imports System.Data
Imports System.Data.SqlTypes
Imports System.Data.SqlClient
Imports System.IO
Imports System.ComponentModel

Public Class ctlPictures
    Dim m_Connectionstring As String
    <DefaultValue("data source=shu00;initial catalog=Vertragsverwaltung;persist security info=False;workstation id=SHU;packet size=4096;user id=sa;password=*shu29"), Description("ConnectionString"), Category("Options")> _
    Property Connectionstring As String
        Get
            Return m_Connectionstring
        End Get
        Set(value As String)
            m_Connectionstring = value
        End Set
    End Property

    Dim m_Produktnr As Integer
    Property Produktnr As Integer
        Get
            Return m_Produktnr
        End Get
        Set(value As Integer)
            m_Produktnr = value
        End Set
    End Property

    Dim m_mitarbeiternr As Integer
    Property Mitarbeiternr As Integer
        Get
            Return m_mitarbeiternr
        End Get
        Set(value As Integer)
            m_mitarbeiternr = value
        End Set
    End Property

    Dim m_tempfilepath As String
    Property TempfilePath As String
        Get
            Return m_tempfilepath
        End Get
        Set(value As String)
            m_tempfilepath = value
        End Set
    End Property

    Dim m_formreadonly As Boolean
    Property FormReadOnly As Boolean
        Get
            Return m_formreadonly
        End Get
        Set(value As Boolean)
            m_formreadonly = value
            If value = True Then
                Me.ImageMenuStrip.Enabled = False
            Else
                Me.ImageMenuStrip.Enabled = True
            End If
        End Set
    End Property
    Dim images As New DataSet
    Dim CurrentImage As Integer = 1
    Dim Maximages As Integer = 0
    Dim ProduktImages As New TKB.VV.Lifecycle.clsProduktImage
    Dim lvimagelist As New ImageList

    Public Function Refresh()
        Me.GetImages()
        Maximages = images.Tables(0).Rows.Count
        CurrentImage = 1
        ShowImage()
    End Function

    Private Sub ShowImage()
        Me.Picturelist.BeginUpdate()
        If images.Tables(0).Rows.Count > 1 Then
            ToolStipImages.Visible = True
            Picturelist.Visible = True
        Else
            ToolStipImages.Visible = False
            Picturelist.Visible = False
        End If
        ' If images.Tables(0).Rows.Count = 0 Then
        Me.PictureBox1.Image = Nothing
        lvimagelist.Images.Clear()
        Me.Picturelist.Items.Clear()
        'End If
        Dim i As Integer = 0
        For Each r As DataRow In images.Tables(0).Rows

            i = i + 1


            If Me.Picturelist.Visible = True Then
                Picturelist.View = View.LargeIcon


                Dim arrayImage() As Byte = CType(r.Item("Image"), Byte())
                Dim ms As New MemoryStream(arrayImage)
                lvimagelist.Images.Add(Image.FromStream(ms))
                Picturelist.Items.Add((i).ToString, i - 1)
            End If
            Me.Picturelist.LargeImageList = lvimagelist
            Me.lvimagelist.ImageSize = New Size(50, 34)
            Me.Picturelist.SmallImageList = lvimagelist
            Me.Picturelist.StateImageList = lvimagelist

         
            If i = CurrentImage Then
                Dim arrayImage() As Byte = CType(r.Item("Image"), Byte())
                Dim ms As New MemoryStream(arrayImage)
                With Me.PictureBox1
                    .Image = Image.FromStream(ms)
                    .SizeMode = PictureBoxSizeMode.Zoom
                End With
            End If
        Next
        Me.Picturelist.Refresh()

        Me.tslblPicture.Text = CurrentImage.ToString + " / " + Maximages.ToString
        Me.Picturelist.EndUpdate()
    End Sub


    Private Function GetImages()
        images.Tables.Clear()
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("Select * from dbo.lc_produktimage where aktiv=1 and lc_produktnr = " + Produktnr.ToString + " order by lc_produktimagenr", connection)
        selectcommand.CommandType = CommandType.Text
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.Fill(images, "ProductImages")
        Catch ex As Exception
            MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            selectcommand.Dispose()
        End Try
    End Function

    Public Function Save_Image(ByVal Produktnr As Integer, ByRef PicBox As PictureBox)
        Dim ms As New MemoryStream
        PicBox.Image.Save(ms, PicBox.Image.RawFormat)
        Dim connection As New SqlConnection(Globals.sConnectionString)

        Dim arrayImage() As Byte = ms.GetBuffer
        ms.Close() ' Closes the Memory Stream

        Dim strQuery As String = "INSERT INTO dbo.lc_produktImage (lc_produktnr, image, erstellt_am, mutiert_am, mutierer, aktiv) " + _
            " VALUES(@Produktnr, @image, @erstellt_am, @mutiert_am, @mutierer, @aktiv)"

        Dim objcommand As New SqlCommand(strQuery, connection)

        With objcommand
            .Parameters.Add(New SqlParameter("@Produktnr", SqlDbType.Int, 4)).Value = Me.Produktnr
            .Parameters.Add(New SqlParameter("@Image", SqlDbType.Image)).Value = arrayImage
            .Parameters.Add(New SqlParameter("@Erstellt_am", SqlDbType.DateTime)).Value = Now
            .Parameters.Add(New SqlParameter("@Mutiert_am", SqlDbType.DateTime)).Value = Now
            .Parameters.Add(New SqlParameter("@Mutierer", SqlDbType.Int)).Value = Me.Mitarbeiternr
            .Parameters.Add(New SqlParameter("@aktiv", SqlDbType.Bit)).Value = 1
        End With

        connection.Open()
        objcommand.ExecuteNonQuery()
        connection.Close()
    End Function

    Public Function Delete_Image(Imagenr As String, produktnr As Integer)
        Me.GetImages()
        Dim i As Integer = 0
        For Each r As DataRow In images.Tables(0).Rows
            i = i + 1
            If "P" + i.ToString = Imagenr Then
                Dim connection As New SqlConnection(Globals.sConnectionString)
                Dim objcommand As New SqlCommand("Update lc_produktimage set aktiv=0,mutierer=" + Globals.clsmitarbeiter.iMitarbeiternr.Value.ToString + " where lc_produktimageNr=" + r.Item("LC_ProduktimageNr").ToString, connection)
                connection.Open()
                objcommand.ExecuteNonQuery()
                connection.Close()
            End If
        Next
    End Function


    Private Sub TSBtnNextImage_Click(sender As Object, e As EventArgs) Handles TSBtnNextImage.Click
        Dim i As Integer
        i = Me.CurrentImage + 1
        If i > Maximages Then i = 1
        CurrentImage = i
        ShowImage()

    End Sub

    Private Sub TSBtnPreviousImage_Click(sender As Object, e As EventArgs) Handles TSBtnPreviousImage.Click
        Dim i As Integer
        i = CurrentImage - 1
        If i < 1 Then i = Maximages
        CurrentImage = i
        ShowImage()
    End Sub

    Private Sub ToolStripMenuItem3_Click(sender As Object, e As EventArgs) Handles ToolStripMenuItem3.Click
        Me.OpenFileDialog1.Filter = "Image Files(*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|All files (*.*)|*.*"
        Me.OpenFileDialog1.ShowDialog()
        Dim pbox As New PictureBox
        If Me.OpenFileDialog1.FileName <> "" Then
            pbox.Image = Image.FromFile(Me.OpenFileDialog1.FileName)
        End If
        Me.ProduktImages.Save_Image(Me.Produktnr, pbox)
        Refresh()
        CurrentImage = Maximages
        ShowImage()
    End Sub

    Private Sub ToolStripMenuItem4_Click(sender As Object, e As EventArgs) Handles ToolStripMenuItem4.Click
        If MsgBox("Aktuelles Bild löschen?", vbYesNo + vbQuestion) = vbYes Then
            Dim i As Integer
            For Each r As DataRow In images.Tables(0).Rows
                i = i + 1
                If i = CurrentImage Then ProduktImages.Delete_Image_Physisch(r.Item("lc_produktimagenr"))
            Next
        End If
        Refresh()
    End Sub

    Private Sub BildInDieZwischenablageToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles BildInDieZwischenablageToolStripMenuItem.Click
        Clipboard.SetDataObject(Me.PictureBox1.Image)
    End Sub

    Private Sub NeuesBildAusZwischenablageToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles NeuesBildAusZwischenablageToolStripMenuItem.Click
        Try

            If Not System.Windows.Forms.Clipboard.GetDataObject() Is Nothing Then
                Dim oDataObj As IDataObject = System.Windows.Forms.Clipboard.GetDataObject()
                If oDataObj.GetDataPresent(System.Windows.Forms.DataFormats.Bitmap) Then
                    Dim oImgObj As System.Drawing.Image = oDataObj.GetData(DataFormats.Bitmap, True)
                    '                  oImgObj.Save("c:\Test.bmp", System.Drawing.Imaging.ImageFormat.Bmp)
                    oImgObj.Save(Me.TempfilePath + "\tmppic.jpg", System.Drawing.Imaging.ImageFormat.Jpeg)
                    '                   oImgObj.Save("c:\Test.gif", System.Drawing.Imaging.ImageFormat.Gif)
                End If
            End If

            Dim pbox As New PictureBox
            pbox.Image = Image.FromFile(Me.TempfilePath + "\tmppic.jpg")
            Me.ProduktImages.Save_Image(Me.Produktnr, pbox)

            Refresh()
            CurrentImage = Maximages
            ShowImage()

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

    End Sub

    Private Sub ToolStipImages_ItemClicked(sender As Object, e As ToolStripItemClickedEventArgs) Handles ToolStipImages.ItemClicked

    End Sub

    Private Sub Picturelist_Click(sender As Object, e As EventArgs) Handles Picturelist.Click
        CurrentImage = Me.Picturelist.FocusedItem.Text
        ShowImage()
    End Sub

End Class