''
'' This code is part of Document Solutions for Imaging demos.
'' Copyright (c) MESCIUS inc. All rights reserved.
''
Imports System
Imports System.IO
Imports System.Collections.Generic
Imports System.Drawing
Imports System.Globalization
Imports GrapeCity.Documents.Imaging
Imports GrapeCity.Documents.Text
Imports GrapeCity.Documents.Drawing
Imports GrapeCity.Documents.Barcode
Imports GCTEXT = GrapeCity.Documents.Text
Imports GCDRAW = GrapeCity.Documents.Drawing
'' This sample prints a set of shipping labels that also include barcodes.
'' Note also the use of tab stops to vertically align data.
Public Class ShippingLabels
'' Client info. This sample prints one shipping label for each client.
Class Client
Public Name As String
Public Addr As String
Public City As String
Public Country As String
Public Sub New(name As String, addr As String, city As String, country As String)
Me.Name = name
Me.Addr = addr
Me.City = city
Me.Country = country
End Sub
End Class
'' The clients base.
Shared ReadOnly s_clients As New List(Of Client) From {
New Client("Simons bistro", "Vinbæltet 34", "København", "Denmark"),
New Client("Richter Supermarkt", "Starenweg 5", "Genève", "Switzerland"),
New Client("Bon app'", "12, rue des Bouchers", "Marseille", "France"),
New Client("Rattlesnake Canyon Grocery", "2817 Milton Dr.", "Albuquerque", "USA"),
New Client("Lehmanns Marktstand", "Magazinweg 7", "Frankfurt a.M.", "Germany"),
New Client("LILA-Supermercado", "Carrera 52 con Ave. Bolívar #65-98 Llano Largo", "Barquisimeto", "Venezuela"),
New Client("Ernst Handel", "Kirchgasse 6", "Graz", "Austria"),
New Client("Pericles Comidas clásicas", "Calle Dr. Jorge Cash 321", "México D.F.", "Mexico"),
New Client("Drachenblut Delikatessen", "Walserweg 21", "Aachen", "Germany"),
New Client("Queen Cozinha", "Alameda dos Canàrios, 891", "São Paulo", "Brazil"),
New Client("Tortuga Restaurante", "Avda. Azteca 123", "México D.F.", "Mexico"),
New Client("Save-a-lot Markets", "187 Suffolk Ln.", "Boise", "USA"),
New Client("Franchi S.p.A.", "Via Monte Bianco 34", "Torino", "Italy")
}
'' The main sample driver.
Public Function GenerateImageStream(targetMime As String, pixelSize As Size, dpi As Single, opaque As Boolean, Optional sampleParams As String() = Nothing) As Stream
Dim bmp = New GcBitmap(pixelSize.Width, pixelSize.Height, opaque, dpi, dpi)
Dim g = bmp.CreateGraphics(Color.White)
Dim ms = New MemoryStream()
Dim tw As GcTiffWriter = Nothing
If targetMime = Util.MimeTypes.TIFF Then
tw = New GcTiffWriter(ms)
End If
Init(pixelSize)
'' Loop over clients, print up to 4 labels per page:
Dim i As Integer = 0
For pg = 0 To (s_clients.Count + 3) \ 4 - 1
PrintLabel(s_clients(i), g, New RectangleF(hmargin, vmargin, _labelWidth, _labelHeight)) : i += 1
If i < s_clients.Count Then
PrintLabel(s_clients(i), g, New RectangleF(hmargin + _labelWidth, vmargin, _labelWidth, _labelHeight)) : i += 1
End If
If i < s_clients.Count Then
PrintLabel(s_clients(i), g, New RectangleF(hmargin, vmargin + _labelHeight, _labelWidth, _labelHeight)) : i += 1
End If
If i < s_clients.Count Then
PrintLabel(s_clients(i), g, New RectangleF(hmargin + _labelWidth, vmargin + _labelHeight, _labelWidth, _labelHeight)) : i += 1
End If
'' For formats other than TIFF print just one page:
If tw Is Nothing Then Exit For
If i < s_clients.Count Then
tw.AppendFrame(bmp)
bmp.Clear(Color.White)
End If
Next
Select Case targetMime
Case Util.MimeTypes.TIFF
tw.AppendFrame(bmp)
tw.Dispose()
Case Util.MimeTypes.JPEG
bmp.SaveAsJpeg(ms)
Case Util.MimeTypes.PNG
bmp.SaveAsPng(ms)
Case Util.MimeTypes.BMP
bmp.SaveAsBmp(ms)
Case Util.MimeTypes.GIF
bmp.SaveAsGif(ms)
Case Util.MimeTypes.WEBP
bmp.SaveAsWebp(ms)
Case Util.MimeTypes.ICO
bmp.SaveAsIco(ms, Nothing, IcoFrameEncoding.Png)
Case Else
Throw New Exception($"Encoding {targetMime} is not supported.")
End Select
bmp.Dispose()
g.Dispose()
Term()
Return ms
End Function
'' Consts and vars used to render the labels:
Const hmargin As Single = 24, vmargin As Single = 36
Dim _labelWidth As Single, _labelHeight As Single
Dim _pBold As GCDRAW.Pen, _pNorm As GCDRAW.Pen
Dim _fontReg As GCTEXT.Font, _fontBold As GCTEXT.Font
Dim _tfSmall As TextFormat, _tfSmallB As TextFormat, _tfLarge As TextFormat
Dim _tsHeader As List(Of TabStop), _tsFrom As List(Of TabStop), _tsCodes As List(Of TabStop)
Dim _logo As GCDRAW.Image
Dim _ia As ImageAlign
Dim bcTop As GcBarcode, bcBottom As GcBarcode
'' Init variables used to render labels:
Sub Init(pixelSize As Size)
_labelWidth = (pixelSize.Width - hmargin * 2) / 2
_labelHeight = _labelWidth
_pBold = New GCDRAW.Pen(Color.Black, 2)
_pNorm = New GCDRAW.Pen(Color.Black, 0.5F)
_logo = GCDRAW.Image.FromFile(Path.Combine("Resources", "ImagesBis", "AcmeLogo-vertical-250px.png"))
_fontReg = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSans-Regular.ttf"))
_fontBold = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSans-Bold.ttf"))
_tfSmall = New TextFormat() With {.Font = _fontReg, .FontSize = 9}
_tfSmallB = New TextFormat() With {.Font = _fontBold, .FontSize = 10}
_tfLarge = New TextFormat() With {.Font = _fontBold, .FontSize = 17}
_ia = New ImageAlign(ImageAlignHorz.Right, ImageAlignVert.Center, True, True, True, False, False)
_tsHeader = New List(Of TabStop) From {New TabStop(24, TabStopAlignment.Leading), New TabStop(108, TabStopAlignment.Leading)}
_tsFrom = New List(Of TabStop) From {New TabStop(12, TabStopAlignment.Leading), New TabStop(72, TabStopAlignment.Leading)}
_tsCodes = New List(Of TabStop) From {New TabStop(_labelWidth / 8, TabStopAlignment.Center)}
bcTop = New GcBarcode() With {
.TextFormat = _tfSmall,
.CodeType = CodeType.Code_128_B,
.HorizontalAlignment = ImageAlignHorz.Center,
.VerticalAlignment = ImageAlignVert.Center,
.ScaleFactor = 2
}
bcTop.Options.CaptionPosition = BarCodeCaptionPosition.Below
bcBottom = New GcBarcode() With {
.TextFormat = _tfSmall,
.CodeType = CodeType.Code_128auto,
.HorizontalAlignment = ImageAlignHorz.Center,
.VerticalAlignment = ImageAlignVert.Center,
.ScaleFactor = 2
}
bcBottom.Options.CaptionPosition = BarCodeCaptionPosition.Below
End Sub
Sub Term()
If _logo IsNot Nothing Then _logo.Dispose()
_logo = Nothing
End Sub
Sub PrintLabel(client As Client, g As GcGraphics, bounds As RectangleF)
'' Used to randomize some sample data:
Dim rnd = Util.NewRandom()
'' Sample shipper/sender data:
Dim shipper = If(rnd.Next(2) = 0, "United Package", "Speedy Express")
Dim sender = (name:="ACME Inc.", addr:="1 Main Street", city:="Metropolis", country:="USA", zip:="34567")
Dim shuttle = rnd.Next(10000, 15000).ToString()
Dim area = rnd.Next(1, 12).ToString()
Dim tour = rnd.Next(0, 20).ToString()
Dim tl = g.CreateTextLayout()
tl.DefaultFormat.Font = _tfSmall.Font
tl.DefaultFormat.FontSize = _tfSmall.FontSize
tl.LineSpacingScaleFactor = 0.75F
tl.ParagraphAlignment = ParagraphAlignment.Center
'' Header
Dim hHeader = bounds.Height / 2 / 5
Dim rHeader = New RectangleF(bounds.X, bounds.Y, bounds.Width, hHeader)
tl.TabStops = _tsHeader
tl.Append(vbTab & shipper)
tl.Append(vbTab & "CMR", _tfSmallB)
tl.Append(vbLf & vbTab & vbTab & Util.TimeNow().ToString("dd-MMM-yy", CultureInfo.InvariantCulture))
tl.MaxHeight = rHeader.Height
tl.MaxWidth = rHeader.Width
tl.PerformLayout(True)
g.DrawTextLayout(tl, rHeader.Location)
Dim rLogo = rHeader
rLogo.Inflate(-5, -5)
g.DrawImage(_logo, rLogo, Nothing, _ia)
'' From
Dim hFrom = hHeader
Dim rFrom = New RectangleF(bounds.X, rHeader.Bottom, bounds.Width, hFrom)
tl.Clear()
tl.TabStops = _tsFrom
tl.Append(vbTab & "From:" & vbTab & sender.name & vbLf &
vbTab & vbTab & sender.addr & vbLf &
vbTab & vbTab & $"{sender.city}, {sender.country} {sender.zip}")
tl.MaxHeight = rFrom.Height
tl.MaxWidth = rFrom.Width
tl.PerformLayout(True)
g.DrawTextLayout(tl, rFrom.Location)
'' To
Dim hTo = bounds.Height / 2 / 3
Dim rTo = New RectangleF(bounds.X, rFrom.Bottom, bounds.Width, hTo)
tl.Clear()
tl.TabStops = _tsFrom
tl.Append(vbTab & "To:" & vbTab & client.Name & vbLf &
vbTab & vbTab & client.Addr & vbLf &
vbTab & vbTab & client.City & vbLf &
vbTab & vbTab & client.Country)
tl.MaxHeight = rTo.Height
tl.MaxWidth = rTo.Width
tl.PerformLayout(True)
g.DrawTextLayout(tl, rTo.Location)
'' Codes
Dim hCodes = bounds.Height / 2 / (15.0F / 4.0F)
Dim rCodes = New RectangleF(bounds.X, rTo.Bottom, bounds.Width, hCodes)
tl.TabStops = _tsCodes
tl.Clear()
tl.AppendLine(vbTab & "Shuttle")
tl.Append(vbTab & shuttle, _tfLarge)
tl.MaxHeight = rCodes.Height
tl.MaxWidth = rCodes.Width / 4.0F
tl.PerformLayout(True)
g.DrawTextLayout(tl, rCodes.Location)
tl.Clear()
tl.AppendLine(vbTab & "Area")
tl.Append(vbTab & area, _tfLarge)
tl.PerformLayout(True)
g.DrawTextLayout(tl, New PointF(rCodes.X + rCodes.Width / 4.0F, rCodes.Y))
tl.Clear()
tl.AppendLine(vbTab & "Exception")
tl.Append(vbTab & " ", _tfLarge)
tl.PerformLayout(True)
g.DrawTextLayout(tl, New PointF(rCodes.X + rCodes.Width / 4.0F * 2.0F, rCodes.Y))
tl.Clear()
tl.AppendLine(vbTab & "Tour")
tl.Append(vbTab & tour, _tfLarge)
tl.PerformLayout(True)
g.DrawTextLayout(tl, New PointF(rCodes.X + rCodes.Width / 4.0F * 3.0F, rCodes.Y))
'' Barcodes
Dim hBarcodes = bounds.Height / 2.0F
Dim rBcTop = New RectangleF(bounds.X, rCodes.Bottom, bounds.Width, hBarcodes / 2.0F)
Dim rBcBottom = New RectangleF(bounds.X, rBcTop.Bottom, bounds.Width, hBarcodes / 2.0F)
bcTop.Text = client.Country
g.DrawBarcode(bcTop, rBcTop)
'' Make up a longish "code":
Dim code = $"{Char.ToUpper(client.Name(0))}{Char.ToUpper(client.Addr(0))}{Char.ToUpper(client.City(0))}{Char.ToUpper(client.Country(0))}"
bcBottom.Text = $"{code}{client.GetHashCode().ToString("X12")}"
g.DrawBarcode(bcBottom, rBcBottom)
'' Lines:
g.DrawLine(rHeader.Left, rHeader.Bottom, rHeader.Right, rHeader.Bottom, _pNorm)
g.DrawLine(rFrom.Left, rFrom.Bottom, rFrom.Right, rFrom.Bottom, _pNorm)
g.DrawLine(rTo.Left, rTo.Bottom, rTo.Right, rTo.Bottom, _pNorm)
g.DrawLine(rCodes.Left, rCodes.Bottom, rCodes.Right, rCodes.Bottom, _pNorm)
g.DrawLine(rCodes.Left + rCodes.Width / 4.0F, rCodes.Top, rCodes.Left + rCodes.Width / 4.0F, rCodes.Bottom, _pNorm)
g.DrawLine(rCodes.Left + rCodes.Width / 4.0F * 2.0F, rCodes.Top, rCodes.Left + rCodes.Width / 4.0F * 2.0F, rCodes.Bottom, _pNorm)
g.DrawLine(rCodes.Left + rCodes.Width / 4.0F * 3.0F, rCodes.Top, rCodes.Left + rCodes.Width / 4.0F * 3.0F, rCodes.Bottom, _pNorm)
g.DrawRectangle(bounds, _pBold)
End Sub
End Class