Class App Inherits Application

Const kEditClear = "&Delete"

Const kFileQuit = "&Quit"

Const kFileQuitShortcut = ""

EventHandler Sub NewDocument() dim file as FolderItem if DebugBuild then file = FindFile("license.pdf") end if if file = nil then file = GetOpenFolderItem(FileTypes1.Pdf) end if if file<>nil then OpenDocument file end if End EventHandler

EventHandler Sub OpenDocument(item As FolderItem) dim p as new PDFWindow(item) p.show 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

End Class

Class PDFWindow Inherits Window

EventHandler Sub Paint(g As Graphics, areas() As REALbasic.Rect) If pic<>Nil Then // scale down for g.DrawPicture pic, 0, 0, g.Width, g.Height, 0, 0, pic.Width, pic.Height end if End EventHandler

EventHandler Sub Resized() render End EventHandler

EventHandler Sub Resizing() 'render End EventHandler

Sub Constructor(file as FolderItem) // Calling the overridden superclass constructor. Super.Constructor Self.file = file Self.Title = file.DisplayName pdf = New MyDynaPDFMBS PageNumber = 1 call pdf.CreateNewPDF(nil) Call pdf.OpenImportFile(file, 0, "") call pdf.SetImportFlags(pdf.kifImportAsPage + pdf.kifImportAll) // important! It makes the rendering faster. Call pdf.ImportPDFFile(1,1.0,1.0) If pdf.GetPageCount > 0 Then render End If End Sub

Private Sub render() // *2 for higher DPI Dim Width As UInt32 = Self.Width * 2 Dim Height As UInt32 = Self.Height * 2 Dim ScanlineLen As Int32 = Width * 4 Dim PixelFormat As UInt32 = pdf.kpxfBGRA // we render here to memoryblock in case you need pixels in a memoryblock... Dim Buffer As New Memoryblock(height * ScanlineLen) Dim Rasterizer As New DynaPDFRasterizerMBS(pdf, Nil, buffer, width, Height, ScanlineLen, PixelFormat) Dim options As New DynaPDFRasterImageMBS options.DefScale = options.kpsFitBest options.Flags = options.krfCompositeWhite options.InitWhite = True Dim page As DynaPDFPageMBS = pdf.GetPage(PageNumber) If Rasterizer.RenderPage(page, options) Then // we use PictureMBS to display it Dim PP As New PictureMBS(Buffer, Width, Height, PictureMBS.ImageFormatBGRA, ScanlineLen) pic = pp.CopyPicture Else // Failed to render page? pic = Nil End If #if RBVersion < 2013 then self.Refresh(False) #else Self.Invalidate #endif End Sub

Property Private PageNumber As Integer

Property file As FolderItem

Property Private pdf As MyDynaPDFMBS

Property pic As Picture

End Class

MenuBar MenuBar1

MenuItem FileMenu = "&File"

MenuItem FileQuit = "#App.kFileQuit"

MenuItem EditMenu = "&Edit"

MenuItem EditUndo = "&Undo"

MenuItem UntitledMenu1 = "-"

MenuItem EditCut = "Cu&t"

MenuItem EditCopy = "&Copy"

MenuItem EditPaste = "&Paste"

MenuItem EditClear = "#App.kEditClear"

MenuItem UntitledMenu0 = "-"

MenuItem EditSelectAll = "Select &All"

End MenuBar

FileTypes1

Filetype application/pdf

End FileTypes1

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