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Linux graphics for Windows programmers??

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Schwab,Wilhelm K

Linux graphics for Windows programmers??

Hello all,

Are there any good tutorials that explain the transition from Windows to Linux with respect to graphics (device contexts, etc.)? I am especially interested in frameworks for printing, and wrappers that provide a canvas interface to a printer. I found a copy of Sophie 1.04 that has some code in Sophie-Printing. Is there anything else I should study?

Bill

Bert Freudenberg

Re: Linux graphics for Windows programmers??

On 16.04.2010, at 20:20, Schwab,Wilhelm K wrote:
>
> Hello all,
>
> Are there any good tutorials that explain the transition from Windows to Linux with respect to graphics (device contexts, etc.)? I am especially interested in frameworks for printing, and wrappers that provide a canvas interface to a printer. I found a copy of Sophie 1.04 that has some code in Sophie-Printing. Is there anything else I should study?

Under Linux, the lingua franca for printing is PostScript. So if you can generate a PostScript file you're almost settled. How to send this to the printer is unfortunately dependent on the environment - you need to make the command configurable, and perhaps make a good guess at a default.

PostscriptCanvas is a place to start, but depending on your app's needs might require some fiddling. OTOH, writing PS files from scratch isn't that hard either.

- Bert -

Bert Freudenberg

Re: Linux graphics for Windows programmers??

No need to pipe to gs manually. The spooler uses CUPS which invokes GS (unless printing to a PostScript printer).

And yes, you can do this from the terminal. E.g. under Gnome you would use gtklp instead of plain lp, which even brings up a nice dialog IIRC.

- Bert -

On 16.04.2010, at 21:17, Schwab,Wilhelm K wrote:

>
> Bert,
>
> One thing working in my favor is that I am selecting the distribution(s) and would have fairly tight control over the machines.
>
> By "the command" is it safe to assume that one would pipe PostScript into gs and then into a spooler? Put another way, if I had a .ps file, I could do all this from a terminal?? If that is true, I am starting to get it.
>
> Thanks!
>
> Bill
>
>
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On Behalf Of Bert Freudenberg
> Sent: Friday, April 16, 2010 1:40 PM
> To: The general-purpose Squeak developers list
> Cc: [hidden email]
> Subject: Re: [Pharo-project] [squeak-dev] Linux graphics for Windows programmers??
>
> On 16.04.2010, at 20:20, Schwab,Wilhelm K wrote:
>>
>> Hello all,
>>
>> Are there any good tutorials that explain the transition from Windows to Linux with respect to graphics (device contexts, etc.)? I am especially interested in frameworks for printing, and wrappers that provide a canvas interface to a printer. I found a copy of Sophie 1.04 that has some code in Sophie-Printing. Is there anything else I should study?
>
> Under Linux, the lingua franca for printing is PostScript. So if you can generate a PostScript file you're almost settled. How to send this to the printer is unfortunately dependent on the environment - you need to make the command configurable, and perhaps make a good guess at a default.
>
> PostscriptCanvas is a place to start, but depending on your app's needs might require some fiddling. OTOH, writing PS files from scratch isn't that hard either.
>
> - Bert -
>
>
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