> Now, you seem interested in helping to shorten that time, the place to start
> is the layout and readme text files in the LCL subdirectory of your lazarus
> source tree, get an idea of how the LCL interfaces are laid out, then go into
> the subdirectory that implements your target widget set and start hacking the
> code, when you are done, recompile lazarus and try it out, repeat.
I will try it, can't promise anything, I need to check my skills on this
level.
Panagiotis
Στις 26-02-2006, ημέρα Κυρ, και ώρα 19:48 +0200, ο/η A.J. Venter έγραψε:
> On Sunday 26 February 2006 21:36, Panagiotis Sidiropoulos wrote:
> > > AFAIK it is not yet implemented in the LCL gtk2 interface, only in the
> > > LCL gtk1 and win32 interface.
> >
> > Does it need any special implementation? Why this for gtk1 can't work on
> > gtk2? Maybe it is a silly question, I don't know. How someone can find
> > infromation on how to do such things?
> >
> The short version is because the LCL is NOT the interface it is using,
> lazarus
> compiling to GTK1 does not mean you are using GTK1. You are still compiling
> your program against the LCL, the LCL uses some or other widget set for
> rendering but the LCL itself has to implement the calls to let that widget
> set do whatever is needed.
> Right now I believe the win32 and GTK1 interfaces are by far the most
> complete
> since they are the oldest ones, carbon, qt and gtk2 are all in a much more
> immature state.
> The big thing is that you have the Object Pascal way of telling components
> how
> to behave on one side, and whatever method is typical in the widget set on
> the other side - the LCL basically translates the one to the other - so the
> translation to GTK1 for ownerdraw isn't the same as for GTK2 because GTK2
> doesn't use the same calls as GTK1 did.
>
> With me so far ?
>
> Right now GTK2 is actually more complete than QT and Carbon mostly because a
> lot of the calls are similar to the highly mature GTK1 which allowed for a
> faster conversion, but it is not I think production ready.
> I have tried it and there are some glaring problems, the worst for me is that
> the GTK2 LCL has some kind of issue in event handling - a LOT of events just
> disappear into the bitbucket and nothing annoys a user as much as clicking a
> button and nothing happens, it is also MUCH slower than the GTK1 version but
> it IS improving and I don't think it will be very long before you CAN use it
> for production work.
>
> Now, you seem interested in helping to shorten that time, the place to start
> is the layout and readme text files in the LCL subdirectory of your lazarus
> source tree, get an idea of how the LCL interfaces are laid out, then go into
> the subdirectory that implements your target widget set and start hacking the
> code, when you are done, recompile lazarus and try it out, repeat.
>
> Ciao
> A.J.
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