[gimp] app: fix the build after the GimpGradientBlendColorSpace commit

[Michael Natterer <mitch src gnome org>]

commit 99ea6f91e20868838062fc156cb6f9c112e2979f
Author: Michael Natterer <mitch gimp org>
Date:   Fri Apr 13 23:12:21 2018 +0200

    app: fix the build after the GimpGradientBlendColorSpace commit
    
    Somehow, gimppalette-import.c was not rebuilt on my system,
    leaving one gimp_gradient_get_color_at() unchanged.

 app/core/gimppalette-import.c       |   14 ++++++++------
 app/core/gimppalette-import.h       |    1 +
 app/dialogs/palette-import-dialog.c |    1 +
 3 files changed, 10 insertions(+), 6 deletions(-)
---
diff --git a/app/core/gimppalette-import.c b/app/core/gimppalette-import.c
index 1666693..b48a838 100644
--- a/app/core/gimppalette-import.c
+++ b/app/core/gimppalette-import.c
@@ -46,11 +46,12 @@
 /*  create a palette from a gradient  ****************************************/
 
 GimpPalette *
-gimp_palette_import_from_gradient (GimpGradient *gradient,
-                                   GimpContext  *context,
-                                   gboolean      reverse,
-                                   const gchar  *palette_name,
-                                   gint          n_colors)
+gimp_palette_import_from_gradient (GimpGradient                *gradient,
+                                   GimpContext                 *context,
+                                   gboolean                     reverse,
+                                   GimpGradientBlendColorSpace  blend_color_space,
+                                   const gchar                 *palette_name,
+                                   gint                         n_colors)
 {
   GimpPalette         *palette;
   GimpGradientSegment *seg = NULL;
@@ -70,7 +71,8 @@ gimp_palette_import_from_gradient (GimpGradient *gradient,
   for (i = 0, cur_x = 0; i < n_colors; i++, cur_x += dx)
     {
       seg = gimp_gradient_get_color_at (gradient, context,
-                                        seg, cur_x, reverse, &color);
+                                        seg, cur_x, reverse, blend_color_space,
+                                        &color);
       gimp_palette_add_entry (palette, -1, NULL, &color);
     }
 
diff --git a/app/core/gimppalette-import.h b/app/core/gimppalette-import.h
index 2597842..69dcc1c 100644
--- a/app/core/gimppalette-import.h
+++ b/app/core/gimppalette-import.h
@@ -22,6 +22,7 @@
 GimpPalette * gimp_palette_import_from_gradient      (GimpGradient *gradient,
                                                       GimpContext  *context,
                                                       gboolean      reverse,
+                                                      GimpGradientBlendColorSpace  blend_color_space,
                                                       const gchar  *palette_name,
                                                       gint          n_colors);
 GimpPalette * gimp_palette_import_from_image         (GimpImage    *image,
diff --git a/app/dialogs/palette-import-dialog.c b/app/dialogs/palette-import-dialog.c
index 261b125..4ca95b8 100644
--- a/app/dialogs/palette-import-dialog.c
+++ b/app/dialogs/palette-import-dialog.c
@@ -792,6 +792,7 @@ palette_import_make_palette (ImportDialog *private)
         palette = gimp_palette_import_from_gradient (gradient,
                                                      private->context,
                                                      FALSE,
+                                                     GIMP_GRADIENT_BLEND_RGB_PERCEPTUAL,
                                                      palette_name,
                                                      n_colors);
       }