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Michael Natterer a779e74817 Cleaned up the remaining libgimp API issues: 
2004-03-12  Michael Natterer  <mitch@gimp.org>

	Cleaned up the remaining libgimp API issues:

	* libgimp/gimppixelfetcher.[ch] (enum GimpPixelFetcherEdgeMode):
	added new enum value GIMP_PIXEL_FETCHER_EDGE_BACKGROUND so we
	can actually use the bg_color feature of the GimpPixelFetcher.

	(gimp_pixel_fetcher_new): added "gboolean shadow" parameter
	because it must not change while the GimpPixelFetcher exists.

	(gimp_pixel_fetcher_set_shadow): removed.

	(gimp_pixel_fetcher_set_bg_color): added "GimpRGB *color"
	parameter and don't call gimp_palette_get_foreground().

	(gimp_pixel_fetcher_get_pixel): handle BACKGROUND mode. Cleaned up
	the function.

	(gimp_get_bg_guchar)
	(gimp_get_fg_guchar): removed these functions...

	* libgimp/gimpdrawable.[ch]: ...and added
	gimp_drawable_get_color_uchar() instead.

	* libgimp/gimp.def
	* plug-ins/common/blinds.c
	* plug-ins/common/checkerboard.c
	* plug-ins/common/cubism.c
	* plug-ins/common/curve_bend.c
	* plug-ins/common/displace.c
	* plug-ins/common/edge.c
	* plug-ins/common/illusion.c
	* plug-ins/common/mblur.c
	* plug-ins/common/mosaic.c
	* plug-ins/common/plasma.c
	* plug-ins/common/polar.c
	* plug-ins/common/ripple.c
	* plug-ins/common/shift.c
	* plug-ins/common/spread.c
	* plug-ins/common/tileit.c
	* plug-ins/common/whirlpinch.c
	* plug-ins/gflare/gflare.c
	* plug-ins/libgimpoldpreview/gimpoldpreview.c: changed accordingly.

	(Didn't test the changed plug-ins because I wanted to get this
	API change into CVS as soon as possible)
 		2004-03-12 22:46:25 +00:00
..
gflares applied a couple of patches from yeti@physics.muni.cz that fix various 2002-11-05 20:11:28 +00:00
.cvsignore (from gimp-narazaki-990909-0) 1999-09-09 07:09:33 +00:00
Makefile.am modernized, made a lot of things m4 macros, and made versioning a lot more 2004-01-22 03:51:46 +00:00
README *** empty log message *** 1999-09-06 23:31:51 +00:00
gflare.c Cleaned up the remaining libgimp API issues: 2004-03-12 22:46:25 +00:00

README 

==========================================================================

	GFlare plug-in ver 0.25

		Eiichi Takamori <taka@ma1.seikyou.ne.jp>

==========================================================================

  GFlare is a plug-in for the GIMP.  The name "GFlare" is short for
"Gradient Flare".  It renders lense flare effect using custom
gradients.  The basic idea is suggested by Marcelo Malheiros,
originally based on a 3DStudio MAX plug-in called LenZFX:
	http://www.digimation.com/techsupp/lzfxfeat.htm

INSTALL:

1) Edit Makefile, if needed.

2) Type "make install".

3) Type "make install-data" if needed. (It copies sample gradients and
   gflares under ~/.gimp)

3) Add new entry to ~/.gimp/gimprc as
     (gflare-path "${gimp_dir}/gflares:${gimp_data_dir}/gflares")

3) Run the GIMP. The menu path is <Image>/Filters/Effects/GFlare.


HOW TO USE IT:

  The document is not yet done. Try and see.

  Main Dialog:
  - Preview
      click on it changes the position of GFlare
  - Settings page
    - Center, Radius (pixel), Rotation (degree), Hue Rotation (degree)
    - Vector Angle (degree) and Vector Length (percentage to Radius)
    - adaptive supersampling ... same as "Blend tool"
  - Selector page
    - ListBox
    - New, Edit, Copy, Delete buttons. Edit button invokes GFlare Editor.

  GFlare Editor:
  - General page:
  - Glow page:
  - Rays page:
  - Second Flares page:     

  WARNING: This plug-in is in development stage, and the code is very
alpha. The GFlare datafile format may be changed in future version.

  Suggestions and ideas for user interface, flare algorithm, etc. are
very welcome.


KNOWN BUGS:

  There are still lots of bugs, of course. ;-)
  They seem related to GTK, and I don't know exactly how I can fix them.

  * It warns at startup as:
    ** WARNING **: file gdkwindow.c: line 422 (gdk_window_move_resize): "window != NULL"
    If you are annoyed, accompanying "gtkviewport.c.patch" will shut up
    the warning.
  * Edit button remains prelighted when GFlare Editor dialog is done.
  * Dialogs are not shown quickly at startup.
  * Sometimes note tab labels are disappeared.
  * Sometimes it crashes, but I don't know yet why it happens.

TODO:
  * Random hue scattering for Second Flares.
  * Improve internal gradients.
  * Currently number of Second Flares is fixed(30).
  * Change opacity for one second flare dynamically, in inverse
    proportion to the size of it.
  * Reduce dialog size
  * Add tweak ability "How to combine Glow, Rays, Second Flares in
    what order"


CREDITS:

  Marcelo Marheiros and Federico Mena Quintero suggested a lot of
ideas. Very Thanks!!

  Marcelo made gradients whose names end with _1, _2, etc. The
gradients whose names end with _101, _102 etc. are mine.

  Quartic did awful Gradient Editor, and gradients PDB procedures.

  A fair proportion of this code was taken from:

  The GIMP -- an image manipulation program
  Copyright (C) 1995 Spencer Kimball and Peter Mattis

  Gradient editor module copyight (C) 1996-1997 Federico Mena Quintero
  federico@nuclecu.unam.mx