Use of type enum of constants in Applescript

Scripting Forums AppleScriptObjC and Xcode
#1

Help ! Please.

First the code (extract of) :

log return & "¢¢¢ TEST :" & return
        -- Note for NSColor constants it's OK  ...
        set cc to whiteColor() of current application's class "NSColor" -- or set cc to NSColor's whiteColor()
        log cc
        --cc's colorUsingColorSpaceName_(NSCalibratedRGBColorSpace)
        log current application's NSCalibratedRGBColorSpace
        log "--a"
        -- Now the trouble
        log current application's NSBitmapImageFileType
        set typeImageBitmap to current application's NSBitmapImageFileType as list
        log "--b"
        log count of typeImageBitmap 
        log "--c"
        set t to NSPNGFileType of typeImageBitmap
        log t
        set tt to current application's class "NSBitmapImageRep"
        log tt
        --set ttt to  NSBitmapImageFileType() of tt -- current application's class "NSBitmapImageRep"'s
        --log ttt
        set tttt to NSBitmapImageFileType of current application's class "NSBitmapImageRep"
        log "--d"
        --set tttt to current application's class "NSBitmapImageRep"'s NSBitmapImageFileType's NSPNGFileType
        log class of tttt
        --set typePNG to NSPNGFileType of NSBitmapImageRep
        --tell NSBitmapImageRep to set typePNG to NSPNGFileType of NSBitmapImageFileType
        -- == AU SECOURS ! ! ! =====================================================================================
        
        unlockFocus() of champ
        set donnees to alloc() of NSData
        tell representationImage 
            -- next line is just a workaround !  I want to write one of the preceding --
            ------------------------------------------------------------------------------------------------------
            set typeImageBitmap to 1 -- TIFF , 5 for PNG ... etc
            set donnees to representationUsingType_properties_(typeImageBitmap, null)
        end tell
        tell donnees to writeToFile_atomically_("/tmp/test.tiff",false)

How i can wite the line

set typeImageBitmap to 1

for acces to the value defined in class NSBitmapImageRep, instead of hard coded “1”

thank you

#2

Hi,

just


set typeImageBitmap to current application's NSPNGFileType
log typeImageBitmap --> 4
#3

Hi Stephan,

Thank you, it works !!
I changed my code accordingly.

--...
lockFocus() of champ
           set  representationImage to alloc() of NSBitmapImageRep
           tell representationImage to initWithFocusedViewRect_(cadre)
        unlockFocus() of champ
        
        -- 0 NSTIFFFileType, 1 NSBMPFileType, 2 NSGIFFileType, 3 NSJPEGFileType, 4 NSPNGFileType, 5 NSJPEG2000FileType.
        set donnees to alloc() of NSData
        set donnees to representationUsingType_properties_(current application's NSPNGFileType, null) of representationImage
--...

Against by now I have this error message for ‘NS…FileType’ different of BMP (1)

Strange …?

#4

every alloc() should be followed by an init(), in case of NSData initWithData_()


set donnees to NSData's alloc()'s initWithData_(representationImage's representationUsingType_properties_(current application's NSPNGFileType, missing value))

for me the 's syntax is better readable

#5

Stephnan, As you must imagine, I’m completely beginner with ASOC, which explains my mistakes.
Do you know what is the difference in code generated from an alloc-init in one line and two lines? The memory area is not reserved, it is lost?
Again thank you for your help and your advice.

#6

There is no difference. But mostly alloc/init in one line is used