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Issue #2303 - Please add Constant type of gradient interpolation ...

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... to make multi-color hard-edge gradient fills possible

Add a new "step" gradient-segment blending function, which is 0
before the midpoint, and 1 at, and after, the midpoint.  This
creates a hard-edge transition between the two adjacent color stops
at the midpoint.  Creating such a transition was already possible,
but required duplicating the same color at the opposing ends of two
adjacent stops, which is cumbersome.
This commit is contained in:
Ell
2018-10-02 21:13:16 -04:00
parent be84c6e766
commit 68bf99e806
7 changed files with 32 additions and 4 deletions
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3
libgimpbase/gimpbaseenums.h
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@ -506,7 +506,8 @@ typedef enum
GIMP_GRADIENT_SEGMENT_CURVED, /*< desc="Curved" >*/
GIMP_GRADIENT_SEGMENT_SINE, /*< desc="Sinusoidal" >*/
GIMP_GRADIENT_SEGMENT_SPHERE_INCREASING, /*< desc="Spherical (increasing)", abbrev="Spherical (inc)" >*/
GIMP_GRADIENT_SEGMENT_SPHERE_DECREASING /*< desc="Spherical (decreasing)", abbrev="Spherical (dec)" >*/
GIMP_GRADIENT_SEGMENT_SPHERE_DECREASING, /*< desc="Spherical (decreasing)", abbrev="Spherical (dec)" >*/
GIMP_GRADIENT_SEGMENT_STEP /*< desc="Step" >*/
} GimpGradientSegmentType;