"David A. Bartold" <[EMAIL PROTECTED]> writes:

> There needs to be a way to select a texture before advanced tools can
> be added to The GIMP.  I propose to create a new dialog box similar
> to the pattern selector.  Instead of containing tilable RGB pixmaps, it
> will contain tileable greyscale heightfield pixmaps.  These textures will
> be used by some tools to simulate, for example, paper grain.
> The user can see the current texture in the main window and in the
> Device status window.  It will be near the current brush selection,
> pattern, and gradient.
> A mock-up "screenshot" is available here:
> http://uts.cc.utexas.edu/~foxx/texture_sel.png
> I'm not too happy about making the gradient a square rather than a
> rectangle.  The brush, pattern, and texture could be horizontally
> adjacent and the gradient placed underneath all three.  I.e.:
>  ___   ___   ___
> |   | |   | |   |
> |___| |___| |___|
>  _______________
> |               |
> |_______________|
> Anybody else have a suggestion?
> There will need to be a new file format for the textures, however
> the code can easily be borrowed from the .pat or .gbr plug-ins.  The
> extension could be .gtx for GIMP Texture (assuming that extention isn't
> used). 

Sounds like a reasonable idea if and only if we make almost all paint tools
use this texture. Are there any algorithms which have proven to fit into
the Gimp paint_core?

Before you think about writing code, we are are designing an abstract 
GimpData object at the moment which will be the parent of all those brush,
pattern, gradient, ... stuff. Those data objects will go into a GimpContainer
(which has just appeared in CVS) which will handle the problems of keeping
names unique, etc. We will also provide views on these objects so all data
previews and all sort of brush, pattern, gradient, ... -dialogs can reuse
the same code. 

This is work in progress, but I'd suggest you don't just copy a lot of 
code around and create a new data type. This is the way it has been done 
several times before and it has led to the awful mess they call gimp-1.2.
In a few weeks, when the basic object infrastructure is in place, it will
be very easy to introduce a new data type.

Salut, Sven

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