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#2 2010-12-09 15:03:18
Re: exporting images and creating folders in squeak?
indeed there is. i cannot look it up for you right now, but Bingo uses that to export images from the paint editor (note the new little [export] button) and also has a
write [image] to file []
block which you could take the code from. it's not too hard, Scratch implemented a whole GIF and BMP read/writer.
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#4 2010-12-09 15:05:35
Re: exporting images and creating folders in squeak?
sparks wrote:
I tried self exportMedia: t1 toFile: t2 with no luck.... same with exportCostume: t1 toFile: t2
ok, hold on while i go check in bingo. it's not that easy 
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#5 2010-12-09 15:13:34
Re: exporting images and creating folders in squeak?
pic exportFilename: fn for: self
that's the code taken exactly from the block.
ImageMedia new form: formName; mediaName: (self unusedMediaNameFromBaseName: self defaultImageMedia mediaName).
that's the code for creating an image media from a form. except, youll have to replace formName with the variable representing the form.
hope this helps 
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#6 2010-12-09 15:16:14
Re: exporting images and creating folders in squeak?
a code snippet would be
Code:
thepic _ ImageMedia new form: FORMNAME; mediaName: (self unusedMediaNameFromBaseName: self defaultImageMedia mediaName). thepic exportFilename: 'c:\pic.gif' for: self.
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#7 2010-12-09 15:26:26
Re: exporting images and creating folders in squeak?
This is my code:
Code:
|thepic| thepic _ ImageMedia new form: t1 asString; mediaName: (self unusedMediaNameFromBaseName: self defaultImageMedia mediaName). thepic exportFilename: t2 for: self.
... It does not work 
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#8 2010-12-09 15:28:44
Re: exporting images and creating folders in squeak?
sparks wrote:
This is my code:
Code:
|thepic| thepic _ ImageMedia new form: t1 asString; mediaName: (self unusedMediaNameFromBaseName: self defaultImageMedia mediaName). thepic exportFilename: t2 for: self.... It does not work
that t1 asString doesn't look right.
is t1 supposed to be a form variable or a ScratchSkin member?
if it's the first option, take the asString away 
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#9 2010-12-09 15:38:27
Re: exporting images and creating folders in squeak?
t1 is a number (costume number) of the sprite, and in my experience squeak does not like working with number arguments, so the asString turns it into a string that squeak usually likes to work with. It does not work without the asString either.
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#10 2010-12-09 15:51:44
Re: exporting images and creating folders in squeak?
sparks wrote:
t1 is a number (costume number) of the sprite, and in my experience squeak does not like working with number arguments, so the asString turns it into a string that squeak usually likes to work with. It does not work without the asString either.
that explains it. you will need some extra code in place of the t1 to actually retrieve the ImageMedia of that number. Sorry but I can't help you right now as it's pretty late here and I'm about to doze off on the keyboard. Good luck!
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#12 2010-12-18 16:27:45
Re: exporting images and creating folders in squeak?
Lets see... *opens Scratch*
This should do it!
Code:
exportCostume: t1 toFile: t2
| t3 t4 t5 |
t3 _ nil.
(t1 isKindOf: String)
ifTrue:
[t3 _ self costumeFromName: t1.
t3
ifNil:
[t4 _ self interpretStringAsNumberIfPossible: t1.
t4 isNumber
ifTrue: [t3 _ self costumeFromName: (self costumeNameFromNumber: t4)]
ifFalse: [^ self]]].
t3
ifNil:
[t4 _ t1 asNumberNoError.
t3 _ self costumeFromName: (self costumeNameFromNumber: t4)].
t3 ifNil: [^ self].
t5 _ t2.
(t5 endsWith: '.png')
ifFalse: [t5 _ t5 , '.png'].
t3 form writePNGFileNamed: t5Offline