2006-08-31 Michael Natterer <mitch@gimp.org>
* app/core/gimpgradient.[ch] (gimp_gradient_has_fg_bg_segments):
new funtion which returns TRUE if any of the gradient's segments
refer to FG of BG.
(gimp_gradient_segment_get_left_color_type)
(gimp_gradient_segment_set_left_color_type)
(gimp_gradient_segment_get_right_color_type)
(gimp_gradient_segment_set_right_color_type): new accessors for
the new GimpGradientColor stuff.
(gimp_gradient_segment_split_midpoint)
(gimp_gradient_segment_range_flip)
(gimp_gradient_segment_range_replicate): split, flip and replicate
the segments' color_types too.
* app/widgets/gimpviewrenderer.[ch]: added virtual functions
::set_context() and ::invalidate() and call them.
* app/widgets/gimpviewrenderergradient.[ch]: implement the virtual
functions. Connect to the context's "foreground-changed" and
"background-changed" signals if the gradient contains FG or BG
colors and invalidate the renderer whenever they change.
* app/core/gimp-gradients.c: removed signal connections which
invalidated the gradients on FG/BG changes of the user context.