[gimp/goat-invasion] app: make gimp_image_transform_rgb() transform the alpha too

[Michael Natterer <mitch src gnome org>]

commit a0ab31f424408fa7f3a1dfbc4e1e932cb88f7892
Author: Michael Natterer <mitch gimp org>
Date:   Sun Mar 18 17:58:01 2012 +0100

    app: make gimp_image_transform_rgb() transform the alpha too
    
    and remove explicit alpha setting in the returned array in most places.

 app/core/gimpdrawable-bucket-fill.c |    1 -
 app/core/gimpdrawable-stroke.c      |    1 -
 app/core/gimpimage.c                |    8 ++++----
 app/paint/gimperaser.c              |    3 ---
 app/paint/gimpink.c                 |    3 ---
 app/paint/gimppaintbrush.c          |    6 ++----
 6 files changed, 6 insertions(+), 16 deletions(-)
---
diff --git a/app/core/gimpdrawable-bucket-fill.c b/app/core/gimpdrawable-bucket-fill.c
index ddf34d5..90dbcfd 100644
--- a/app/core/gimpdrawable-bucket-fill.c
+++ b/app/core/gimpdrawable-bucket-fill.c
@@ -154,7 +154,6 @@ gimp_drawable_bucket_fill_full (GimpDrawable        *drawable,
     {
       gimp_image_transform_rgb (image, gimp_drawable_type (drawable),
                                 color, col);
-      col[gimp_drawable_bytes_with_alpha (drawable) - 1] = OPAQUE_OPACITY;
     }
   else if (fill_mode == GIMP_PATTERN_BUCKET_FILL)
     {
diff --git a/app/core/gimpdrawable-stroke.c b/app/core/gimpdrawable-stroke.c
index a63330e..400ea0a 100644
--- a/app/core/gimpdrawable-stroke.c
+++ b/app/core/gimpdrawable-stroke.c
@@ -371,7 +371,6 @@ gimp_drawable_stroke_scan_convert (GimpDrawable    *drawable,
 
         gimp_image_get_foreground (image, context,
                                    gimp_drawable_type (drawable), col);
-        col[bytes - 1] = OPAQUE_OPACITY;
 
         color_region_mask (&basePR, &maskPR, col);
       }
diff --git a/app/core/gimpimage.c b/app/core/gimpimage.c
index cff6fe7..4516dd7 100644
--- a/app/core/gimpimage.c
+++ b/app/core/gimpimage.c
@@ -2727,17 +2727,17 @@ gimp_image_transform_rgb (const GimpImage *dest_image,
                           guchar          *color)
 {
   const Babl *dest_format;
-  guchar      col[3];
+  guchar      col[4];
 
   g_return_if_fail (GIMP_IS_IMAGE (dest_image));
   g_return_if_fail (rgb != NULL);
   g_return_if_fail (color != NULL);
 
-  dest_format = gimp_image_get_format_without_alpha (dest_image, dest_type);
+  dest_format = gimp_image_get_format_with_alpha (dest_image, dest_type);
 
-  gimp_rgb_get_uchar (rgb, &col[0], &col[1], &col[2]);
+  gimp_rgba_get_uchar (rgb, &col[0], &col[1], &col[2], &col[3]);
 
-  babl_process (babl_fish (babl_format ("RGB u8"), dest_format),
+  babl_process (babl_fish (babl_format ("RGBA u8"), dest_format),
                 col, color, 1);
 }
 
diff --git a/app/paint/gimperaser.c b/app/paint/gimperaser.c
index 6a8ca68..537ab5d 100644
--- a/app/paint/gimperaser.c
+++ b/app/paint/gimperaser.c
@@ -141,9 +141,6 @@ gimp_eraser_motion (GimpPaintCore    *paint_core,
   gimp_image_get_background (image, context, gimp_drawable_type (drawable),
                              col);
 
-  /*  set the alpha channel  */
-  col[area->bytes - 1] = OPAQUE_OPACITY;
-
   /*  color the pixels  */
   color_pixels (temp_buf_get_data (area), col,
                 area->width * area->height, area->bytes);
diff --git a/app/paint/gimpink.c b/app/paint/gimpink.c
index 455549c..c696270 100644
--- a/app/paint/gimpink.c
+++ b/app/paint/gimpink.c
@@ -305,9 +305,6 @@ gimp_ink_motion (GimpPaintCore    *paint_core,
   gimp_image_get_foreground (image, context, gimp_drawable_type (drawable),
                              col);
 
-  /*  set the alpha channel  */
-  col[paint_core->canvas_buf->bytes - 1] = OPAQUE_OPACITY;
-
   /*  color the pixels  */
   color_pixels (temp_buf_get_data (paint_core->canvas_buf), col,
                 area->width * area->height, area->bytes);
diff --git a/app/paint/gimppaintbrush.c b/app/paint/gimppaintbrush.c
index 26fcfa8..3c60eb9 100644
--- a/app/paint/gimppaintbrush.c
+++ b/app/paint/gimppaintbrush.c
@@ -123,10 +123,7 @@ _gimp_paintbrush_motion (GimpPaintCore    *paint_core,
   gdouble                   fade_point;
   gdouble                   grad_point;
   gdouble                   force;
-  guchar                    pixel[MAX_CHANNELS] = { OPAQUE_OPACITY,
-                                                    OPAQUE_OPACITY,
-                                                    OPAQUE_OPACITY,
-                                                    OPAQUE_OPACITY };
+  guchar                    pixel[MAX_CHANNELS];
 
   image = gimp_item_get_image (GIMP_ITEM (drawable));
 
@@ -166,6 +163,7 @@ _gimp_paintbrush_motion (GimpPaintCore    *paint_core,
       /* optionally take the color from the current gradient */
 
       opacity *= gradient_color.a;
+      gimp_rgb_set_alpha (&gradient_color, GIMP_OPACITY_OPAQUE);
 
       gimp_image_transform_rgb (image, gimp_drawable_type (drawable),
                                 &gradient_color, pixel);