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Re: what's the difference and superior between gtk+ and gecko?



On 4 March 2009 13:07:42 Star Liu wrote:
> On Wed, Mar 4, 2009 at 6:10 PM, Kelly Clowers <kelly.clowers@gmail.com> 
wrote:
> > On Wed, Mar 4, 2009 at 01:04, Star Liu <minxinjianxin@gmail.com> wrote:
> >> I want to develop a cross-platform desktop software by open source
> >> platform and develop tools. I'm also a web developer so I'm interested
> >> in gecko, and know that gecko is also able to build desktop
> >> applications by XUL, not only display html files. But it seems gtk+ is
> >> the more normal way to develop desktop applications, then what's the
> >> superior of the two methods? thanks.
> >
> > This is off topic for this list, but since I am replying anyway...
> >
> >
> > GTK and QT are traditional toolkits that are use for building apps.
> > They are comparable to WinForms (.NET),  MFC (Win), or AppKit
> > (OS X).
> >
> > Gecko is technically the rendering engine at the heart of XULRunner,
> > otherwise known as the Mozilla Platform. XUL is Mozilla's XML
> > User interface Language, which is used for Firefox's "Chrome" -
> > all the UI elements around the web page. XUL is rendered with
> > Gecko, just like HTML, and the UI is driven with Javascript.
> >
> > XULRunner's use of XML and Javascript might make it easier
> > for a Web dev to write an app, but I suspect you would have to
> > write some amount of C++. In any case, you would have to learn
> > how the JS wraps the C++ interface, which is rather different
> > from the DOM.
> >
> > QT is written in C++ and GTK is C with GLib/GObject. I know
> > you can write the bulk of a GTK program in Python; QT has
> > QTScript (ecmascript) and some support for Python and
> > Ruby, although I don't know if the majority of a QT program
> > can be written with any of those.
> >
> > A XULRunner program will be larger (on disk and in memory)
> > and slower than a GTK or QT program. A large, complex
> > program will suffer less from this than a small or trivial
> > program.
> >
> > XULRunner make the most sense if you are going to be
> > rendering html or doing networking with your program anyway.
> >
> > It is worth noting that QT is a very complete framework, more
> > so even than XULRunner, and it includes QTWebkit. In the
> > just released QT 4.5, the Webkit is close to the version used
> > in the new Safari 4 betas.
> >
> > GTK is more loosely joined, with many parts run as separate
> > but allied projects (e.g. Pango, the text engine), and in some
> > cases there are several projects that might fill a need, with
> > none really official.
> >
> > All three are now available under the LGPL, and QT and
> > Moz have some other license options.
> >
> >
> > I suggest you check out the sites and maybe ask some
> > specific questions (not "which is better") on the appropriate
> > forums/mailing lists and decide which is better for you.
> >
> > http://developer.mozilla.org/En/XULRunner
> > http://www.gtk.org/
> > http://www.qtsoftware.com/
> >
> >
> > Cheers,
> > Kelly Clowers
>
> thank you. My task is to make a "Optical Freedom Surfaces Design
> Tool", for example, given a math expression for a surface, I will
> display the 2D/3D picture of the surface, and do some other operation
> around the surface.
> I want to make this tool by fully free software, I think gecko is not
> proper for my task, but I don't know how to choose between qt and
> gtk+.
>
> > --
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> > listmaster@lists.debian.org

Lots of free software do that already. A single search gave me:
Opencascade, k3dsurf, Genius....


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