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/Images/LargePicture/JPEG Save
Required plugins for this example: MBS Images Plugin, MBS Main Plugin, MBS Util Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Images/LargePicture/JPEG Save
This example is the version from Sun, 17th Mar 2012.
Project "JPEG Save.rbp"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
End Class
Class Window1 Inherits Window
EventHandler Sub Open() dim logo as Picture = LogoMBS(500) dim p as new PictureMBS(logo) Backdrop=p.CopyPicture dim j as new MyJPEGExporterMBS j.p=p j.huge=0 j.height=p.height j.file=SpecialFolder.Desktop.Child("JPEGExporter test.jpg") j.Quality=75 j.ExportRGBwithRowDataEvent(p.Width, p.Height, p.Width*3) j.File.Launch // now test a huge one: // 625,000,000 pixels = 25000^2 // this image needs 1,7 GB uncompressed! const huge=50 j=new MyJPEGExporterMBS j.p=p j.height=p.height j.huge=huge j.file=SpecialFolder.Desktop.Child("JPEGExporter test huge.jpg") j.Quality=75 j.ExportRGBwithRowDataEvent(p.Width*huge, p.Height*huge, p.Width*3*huge) j.File.Launch End EventHandler
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&Ablage"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Bearbeiten"
MenuItem EditUndo = "&Rückgängig"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "&Ausschneiden"
MenuItem EditCopy = "&Kopieren"
MenuItem EditPaste = "&Einfügen"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "&Alles auswählen"
End MenuBar
Class MyJPEGExporterMBS Inherits JPEGExporterMBS
EventHandler Sub Error(message as string, ErrorCode as integer) MsgBox "Error: "+Message End EventHandler
EventHandler Function GetRowData(index as integer) As memoryblock if p=nil then Return nil else if huge>0 then dim m as MemoryBlock=p.RowInFormat(index mod height, PictureMBS.ImageFormatRGB) dim size as integer = m.Size*huge dim n as MemoryBlock=NewMemoryBlock(size) dim o as integer for i as integer=1 to huge m.CopyBytesMBS(0,m.size, n, o) o=o+m.size next Return n else dim m as MemoryBlock=p.RowInFormat(index, PictureMBS.ImageFormatRGB) Return m end if end if End EventHandler
Property height As Integer
Property huge As integer
Property p As PictureMBS
End Class
End Project

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

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