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/DynaPDF/metafiles/metafiles
Function:
Required plugins for this example: MBS DynaPDF Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /DynaPDF/metafiles/metafiles
This example is the version from Thu, 6th Apr 2016.
Project "metafiles.rbp"
FileTypes
Filetype text
Filetype icc
End FileTypes
MenuBar MenuBar1
MenuItem UntitledMenu1 = ""
MenuItem FileMenu = "&File"
MenuItem FileQuit = "Quit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu0 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "Clear"
End MenuBar
Class App Inherits Application
EventHandler Sub Open() dim pdf as new MyDynapdfMBS dim outFile as FolderItem=SpecialFolder.Desktop.Child("metafiles.pdf") pdf.SetLicenseKey "Pro" // For this example you can use a Pro or Enterprise License call pdf.CreateNewPDF(nil) // The output file is created later call pdf.Append call pdf.SetPageCoords(pdf.kpcTopDown) // We use a landscape format dim w as double = 842.0 dim h as double = 595.0 call pdf.SetBBox(pdf.kpbMediaBox, 0.0, 0.0, w, h) // This file transforms the coordinate system very often and uses clipping regions. The metafile // is scaled to the page width without changing its aspect ratio. call PlaceEMFCentered(pdf, FindFile("coords.emf"), w, h) call pdf.EndPage call pdf.Append // Simple test of line and standard patterns call PlaceEMFCentered(pdf, FindFile("fulltest.emf"), w, h) call pdf.EndPage call pdf.Append // Outlined text, dash patterns with text. This file requires the font Bookman Old Style. If not available, // the result will be wrong! call PlaceEMFCentered(pdf, FindFile("gdi.emf"), w, h) call pdf.EndPage // No fatal error occurred? if pdf.HaveOpenDoc then // OK, now we can open the output file. if not pdf.OpenOutputFile(outFile) then MsgBox "Make sure that you have write access to the project folder." quit end if end if call pdf.CloseFile outFile.Launch quit End EventHandler
Function FindFile(name as string) As FolderItem // Look for file in parent folders from executable on dim parent as FolderItem = app.ExecutableFile.Parent while parent<>Nil dim file as FolderItem = parent.Child(name) if file<>Nil and file.Exists then Return file end if parent = parent.Parent wend End Function
Function PlaceEMFCentered(pdf as dynapdfmbs, filename as folderitem, width as double, height as double) As boolean dim r as DynapdfRectMBS dim x,y as Double ' We place the EMF file horizontal and vertically centered in this example. // We need the picture size of the EMF file r=pdf.GetLogMetafileSize(filename) if r=nil then return false end if dim w as double = r.Right - r.Left dim h as double = r.Bottom - r.Top 'We place the EMF file into a border of 2 units around the page so that we can better see 'the bounding box of the EMF file. Width = Width- 4.0 Height = Height- 4.0 dim sx as double = Width / w 'An important note about the bounding rectangle: DynaPDF calculates the zero point 'of the EMF picture automatically so that we don't need to consider the coordinate origin. 'The coordinate origin for our calculation here is always 0.0, 0.0 independent of the real 'origin of the EMF picture. if (h * sx <= Height) then h = h* sx x = 2.0 // If the file should not be centered vertically then set y to 2.0. y = (Height - h) / 2.0 call pdf.InsertMetafile(filename, x, y, Width, 0.0) // The rectangle represents the real bounding box of the EMF picture. call pdf.SetStrokeColor(PDF.kPDF_RED) return pdf.Rectangle(x, y, Width, h, pdf.kfmStroke) else sx = Height / h w = w * sx x = (Width - w) / 2.0 y = 2.0 call pdf.InsertMetafile(filename, x, y, 0.0, Height) // The rectangle represents the real bounding box of the EMF picture. call pdf.SetStrokeColor(PDF.kPDF_RED) return pdf.Rectangle(x, y, w, Height, pdf.kfmStroke) end if End Function
End Class
Class MyDynaPDFMBS Inherits DynaPDFMBS
EventHandler Function Error(ErrorCode as integer, ErrorMessage as string, ErrorType as integer) As integer // output all messages on the console: System.DebugLog str(ErrorCode)+": "+ErrorMessage // and display dialog: Dim d as New MessageDialog //declare the MessageDialog object Dim b as MessageDialogButton //for handling the result d.icon=MessageDialog.GraphicCaution //display warning icon d.ActionButton.Caption="Continue" d.CancelButton.Visible=True //show the Cancel button // a warning or an error? if BitAnd(ErrorType, me.kE_WARNING) = me.kE_WARNING then // if user decided to ignore, we'll ignore if IgnoreWarnings then Return 0 d.Message="A warning occurred while processing your PDF code." // we add a third button to display all warnings d.AlternateActionButton.Caption = "Ignore warnings" d.AlternateActionButton.Visible = true else d.Message="An error occurred while processing your PDF code." end if d.Explanation = str(ErrorCode)+": "+ErrorMessage b=d.ShowModal //display the dialog Select Case b //determine which button was pressed. Case d.ActionButton Return 0 // ignore Case d.AlternateActionButton IgnoreWarnings = true Return 0 // ignore Case d.CancelButton Return -1 // stop End select End EventHandler
Property IgnoreWarnings As Boolean
End Class
End Project

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The items on this page are in the following plugins: MBS DynaPDF Plugin.




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MBS Xojo PDF Plugins