On 01/17/13 23:25, chris wrote:
>> Somebody (maybe Albrecht? Can't recall now, it was a while ago...) did =
>> post patches to implement animated GIF's, but that was some time (years) =
>> ago, and there seemed to be no demand for that ability, so it never =
>> happened...
>>
>
> That was probably this:
> http://www.fltk.org/newsgroups.php?s16+gfltk.general+v25+T0+Qanimated
> The link within is still working.
Neat, was wondering about that.. glad you followed up with the link.
The posting proposes a modification to fltk's Fl_GIF_Image code
which adds quite a few public functions, notably:
void animating(int zeroforno_oneforyes); // False to freeze animation,
true to run it. Default is true.
int animating(); // returns current animation
status (0=set for not animating, 1=set for animating)
void select_frame(unsigned int framenum); // Used to select a given frame
number.
unsigned int framecount(); // how many frames in the gif
unsigned int framedelay(); // get #msecs between each frame
void framedelay(unsigned int newdelay_msec); // set #msecs between each frame
unsigned int repeatcount(); // get repeat count
void repeatcount(unsigned int newcount); // set repeat count
I know gifs can handle different delays between each frame,
so perhaps some extra methods are needed if one wants to access/change
that info.
Also, the proposed mods makes use of the vector STL library (yes, now part
of the C++ standard)
which I /think/ we're still trying to avoid.. not sure. Some simple changes
could solve that.
Code would also need some doxygen docs.
So some changes will be needed to that proposed patch to include in fltk..
I'll check to see if that code has been submitted as an STR, and if not,
I can submit an STR on his behalf (he did say we could add his code to FLTK)
with the code as attachments, so that we at least have a copy of the work
even if the author's link goes stale..
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