Cairo on VW

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Try to reinstall VW and make sure to check cairo graphics.
VW comes with ready to run Dll's that work just fine on OSX and Windows. If you use other libraries placed elsewhere you have to indicate so in the Cairo package.
Regards,
@+Maarten,  

Le 26 sept. 2013 à 21:56, akevalion <[hidden email]> a écrit :


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Hi Akevalion,

A while back I went through similar pain. Here is a post I made after I
got it working. I recall trying to place files on the path, but got it
working using the gtk libraries and editing the DLLCC class to point to
the .dll directories.

Good luck! cheers,

Stewart

Hi,

 

Here's how I got Pango/Cairo to work on windows Vista and VW 7.9.1:

 

- download the GTK bundle (gtk+-bundle_2.24.10-20120208_win32) and unzip

- take a fresh image

- load the latest basic Pango package from Store (auto loads
CairoGraphics package)

- edit the LibPango and LibCairo external interface class definitions to
add the path to gtk binaries directory:

      eg #(#libraryDirectories
#('C:\...\gtk\gtk+-bundle_2.24.10-20120208_win32\bin'))

- and execute the code:

 

| view gc |

view := ScheduledControllers activeController view.

gc := view graphicsContext.

gc newCairoContextWhile:

                [:cr |

                cr

                        source: ColorValue red;

                        moveToX: 110 y: 20.

                (Pango.Layout text: 'Hello, World! ' , ObjectMemory
versionId printString)

                        fontDescriptionString: 'Calibri, 60';

                        showOn: cr]

 

The key is to set the library directory on LibCairo, otherwise you get a
load library error on libpangocairo-1.0-0.dll (from LibPango
pango_cairo_font_map_get_default ) - go figure!

 

If you save the image, you'll need to execute:

 

Smalltalk.Pango.ShapeAttribute initializeCallbacks.

 

to fix bad argument error, as it hangs onto the C callback function.

 

To isolate dependent dlls use Dependency Walker and drag the libraries
referenced in LibCairo and LibPango onto the depends UI - it will list
the dependent dlls.

 

That's the first step - thanks to everyone who has helped!

 

Cheers,

 

Stewart

 

 

 



>-----Original Message-----
>From: [hidden email] [mailto:[hidden email]] On
Behalf
>Of akevalion
>Sent: 27 September 2013 7:56 a.m.
>To: [hidden email]
>Subject: [vwnc] Cairo on VW
>
>Hi Chris
>
>It was good to meet you at ESUG,
>I am now working on making Sunburst use Cairo, to benefit from all the
good
>things it brings. But I am unfortunately facing a problem for which I
do point
>to them y using a Path variable. The primitive #primLoadLibrary: fails
with
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