On Dec 21, 2011, at 8:52 AM, Fernando Olivero wrote: > Igor, what does newSurface: do?, in the context of Cairo.
I just create a cairo Surface > How do you render the contents of the Cairo surface to the Display? Or > are you using the > writeToPng->readFromPng to Form->Display Form mechanism. Copy from buffer to a form. Have a look at the implementation. > I was planning to use, NBCairoSurface>>getData:, which returns a > pointer to the data, and simply update the Display contents with the > surface's data. What would be good is that you use Athens? > > > Fernando > > On Tue, Dec 20, 2011 at 11:09 PM, Stéphane Ducasse > <[email protected]> wrote: >> Alex normally you will just use athens and you will get a zoomable canvas :). >> So mondrian should not use Cairo (just athens. Athens defines an API and you >> will be able to have multiple back ends >> and your code should run the same on cairo or balloon (may be degraded in >> balloon). but your code will not be different. >> >> Stef >> >>> Your work is truly important! >>> I plan in the long term to make Mondrian and Roassal use Cairo. This has >>> been on my todo list for quite some time already... >>> >>> Alexandre >>> >>> On 20 Dec 2011, at 14:56, Igor Stasenko wrote: >>> >>>> We binding an Athens API for Cairo library. It fits pretty well as a >>>> backend to API. >>>> >>>> Today i got some basics working. >>>> Mostly, the functionality covered by: >>>> >>>> AthensCairoSurfaceExamples example1 >>>> and >>>> AthensCairoSurfaceExamples example2 >>>> >>>> which drawing nothing fancy but just rectangle(s) with solid color. >>>> >>>> example2 >>>> " >>>> self example2 >>>> " >>>> >>>> | surf | >>>> >>>> surf := self newSurface: 100@100. >>>> >>>> surf drawDuring: [:can | >>>> surf clear. >>>> >>>> can setPaint: Color blue. >>>> >>>> can drawShape: ( >>>> can createPath: [:path | >>>> path >>>> absolute; >>>> lineTo: 50@0; >>>> lineTo: 50@50; >>>> lineTo: 0@50 >>>> ]) >>>> >>>> ]. >>>> >>>> Display getCanvas drawImage: surf asForm at: 0@0 >>>> >>>> >>>> P.S. Stef says that Athens API is quite cool :) >>>> >>>> -- >>>> Best regards, >>>> Igor Stasenko. >>>> <Screen Shot 2011-12-20 at 6.56.22 PM.png><Screen Shot 2011-12-20 at >>>> 6.57.04 PM.png> >>> >>> -- >>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>> Alexandre Bergel http://www.bergel.eu >>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>> >>> >>> >>> >>> >>> >> >> >
