[Newbies] Bitmap-Arrays too large for "contents"
rukin at web.de
Tue Dec 22 12:49:24 UTC 2009
> Hi Squeak-Fans!
> I am new in programming squeak an I have the following problem:
> I want to integrate bitmap-arrays in my project for the images used in it. To get the elements for my bit-map array I used:
> | image stream |
> image := ColorForm fromFileNamed:
> stream := WriteStream with: String new.
> image storeOn: stream.
> stream contents.
> By inspecting contents I can copy & paste its elements to the corresponding methods for the image. The Problem now is, that some of my images generate more bitmap-code elements than "contents" can display. Do you have an Idea how may copy&paste all the elements of the Stream!? I tried Seaside WAFileLibrary and pasted the generated methods, but WAFileLibrary returns byte-arrays, which can't be interpretet within the squeak form of *Morph.
> So does anybody of you have an Idea and may help me?
>Your last line could become
> Clipboard clipboardText: stream contents
>However, the canonical way would be to simply generate the method rather than doing it manually. Generating a method can be as simple as
> MyClass compile: 'myMethod ^42'
>See, for example, MenuIcons>>importIconNamed:.
>- Bert -
thanks for your cool tip. I'll try to generate the methods via "class compile".
I've tested it and a new problem came up. I did it the same way MenuIcons>>importIconNamed is implemented.
The problem now is, that there comes up a error message ("MessageNotUnterstood(Metaclass)>>category") although I've inserted classfied : 'generated methods' and the category is already created and exists.
Here the code snippet:
| writer image stream |
writer := JPEGReadWriter on: (FileStream fileNamed: aString, '.jpg').
[ image := writer nextImage]
ensure: [writer close].
stream := ReadWriteStream on: (String new).
stream nextPutAll: aString ; cr.
stream nextPutAll: (self methodStart: aString).
image storeOn: stream.
stream nextPutAll: self methodEnd.
MyGraphicLibrary class compile: stream contents classified: 'generated methods' notifying: nil.
^ stream contents
MyGraphicLibrary is a subclass of Object.
The error comes up at "compile:[...]". Everything before that works fine. Form is created etc. Simply the compilation does not work.
Do you have an Idea what the problem could be here ?
Thanks for your help!
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