Hi,
I'm a newbie in QC with background on microsoft tech like silverlight/
wpf and xdk. Charmed by the Surface photo browsing demo and as a real
mac lover I tried to implement a prototype of it on QC.
I looked at some other implementations of it, from iPhone to several
RIA demos (SVG, silverlight etc.), but I figure out that Apple multi
touch approach is far more than let the user put their fingers on the
screen, especially big screen. I believe that big screen multi touch
is very fun and there are lot of stuff you can do in QC using tools
like the Wiimote but I think that asking the user to always hold on
their arms is not the real solution for me.
For operation like zoom and rotate I've planned to use the new
MacBookAir trackpad gesture for pinch, swipe and rotate but in the
view of the fact that first I don't have a MacBookAir and second
gesture SDK doesn't seems to be available at the moment I simulate the
pich effect with the scroll up/down gesture and the rotation with the
scroll left/right gesture of a MacBook regular trackpad. An
interesting side effect of this roundtrip by the way is that it works
even with a mighty mouse, that in some way it also implement a sort of
multi touch experience.
Well the composition in attach is just a prototype and doesn’t
implement all the features of the original demo but there are some
consideration about the development of it that I’d like to share with
you.
As I just said I’m not a expert at all here and this was really my
first experience with this tool but I found extreme advantages from
Quartz Composer. I found it a very high level tool, easier to use
then any other traditional development environment and I believe it
implements a real visual approach on graphic programming. I really
appreciate how it's so easy to reuse graphic components. Actually I
focused only on the script that handle user input and move photos, all
the graphics effects have been just copied from the samples in the SDK.
It’s amazing how it is so easy and transparent to add complex
animation and graphic filtering. I found outstanding how few lines of
code I had to write to build such a user interface prototype.
I really believe that QC has lot of potential but as a newbie I've
found no book and few stuff on the SDK and on the web helping me to
understand the potential and the right usage of this tool.
I’m investigating the easy integration with Cocoa Bindings, DashCode,
QuickTime and even Safari but my question is if QC is the right tool
to build an application like this one or if it better to directly code
in Cocoa and Quartz2D/OpenGL ? Please review the prototype and let me
know.
Thanks in advance,
jacopo mangiavacchi
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