B4J Code Snippet Print a pane

Hello
I wanted to print a pane to a specific size like A4.
I searched but I didn't find any library or code snippet. So I wrote it myself. Hope this is useful for others.

B4X:
Public Sub PrintPane(pn As Pane, Paper As Paper)
    Dim PJ As PrinterJob = PrinterJob_Static.CreatePrinterJob
    If PJ.ShowPrintDialog(Null) Then
        Dim Printer As Printer = PJ.GetPrinter
        Dim PP As Paper
        Dim PL As PageLayout
   
        PP.Initialize
        PP=Paper
   
        PL=Printer.CreatePageLayout2(PP,PageOrientation_Static.LANDSCAPE,"HARDWARE_MINIMUM")
   
        Dim hei As Double = Paper.GetWidth/pn.Height - 0.03
        Dim wid As Double = Paper.GetHeight/pn.Width - 0.02
   
        Dim pnl As Pane
        pnl.Initialize("")
        pnl.PrefHeight =  Paper.GetWidth
        pnl.PrefWidth =  Paper.GetHeight
        Dim l As List
        l.Initialize
   
        For Each n As Node In pn.GetAllViewsRecursive
            If n Is Label Then
                Dim lbl As Label = n
                lbl.TextSize = lbl.TextSize*wid
                l.add(lbl.Text)
                pnl.AddNode(lbl,lbl.Left*wid,lbl.Top*hei,lbl.PrefWidth*wid,lbl.PrefHeight*hei)
            Else If n Is Button Then
                Dim btn As Button = n
                btn.TextSize = btn.TextSize*wid
                l.Add(btn.Text)
                pnl.AddNode(btn,btn.Left*wid,btn.Top*hei,btn.PrefWidth*wid,btn.PrefHeight*hei)
            Else
                Dim n2 As Node = n
                pnl.AddNode(n2,n2.Left*wid,n2.Top*hei,n2.PrefWidth*wid,n2.PrefHeight*hei)
            End If
        Next
        Dim j As Int = 0
        For Each n As Node In pnl.GetAllViewsRecursive
            If n Is Label Then
                Dim lbl As Label = n
                lbl.Text = ""
                lbl.Text = l.Get(j)
                j = j+1
            Else If n Is Button Then
                Dim btn As Button = n
                btn.Text = ""
                btn.Text = l.Get(j)
                j = j+1
            End If
        Next
        Dim PJ As PrinterJob = PrinterJob_Static.CreatePrinterJob2(Printer)
   
        PJ.PrintPage2(PL,pnl)
        PJ.EndJob
   
        For Each n As Node In pnl.GetAllViewsRecursive
            If n Is Label Then
                Dim lbl As Label = n
                lbl.TextSize = lbl.TextSize/wid
                pn.AddNode(lbl,lbl.Left/wid,lbl.Top/hei,lbl.PrefWidth/wid,lbl.PrefHeight/hei)
            Else If n Is Button Then
                Dim btn As Button = n
                btn.TextSize = btn.TextSize/wid
                pn.AddNode(btn,btn.Left/wid,btn.Top/hei,btn.PrefWidth/wid,btn.PrefHeight/hei)
            Else
                Dim n2 As Node = n
                pn.AddNode(n2,n2.Left/wid,n2.Top/hei,n2.PrefWidth/wid,n2.PrefHeight/hei)
            End If
        Next
   
        j = 0
        For Each n As Node In pn.GetAllViewsRecursive
            If n Is Label Then
                Dim lbl As Label = n
                lbl.Text = ""
                lbl.Text = l.Get(j)
                j = j+1
            Else If n Is Button Then
                Dim btn As Button = n
                btn.Text = ""
                btn.Text = l.Get(j)
                j = j+1
            End If
        Next
    End If
End Sub

For example : PrintPane(Pane1,Paper_static.A4)

P.S : I used jFX8Print library. I attach it below.
 
Last edited by a moderator:

stevel05

Expert
Licensed User
Thanks for sharing.

Note: unless you have changed the library, you should link to the original library thread rather than uploading it again as the original library may be updated at some point.

Original Lib
 
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