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[gimp/goat-invasion: 295/418] app: port gimp_image_pick_color() to return a Babl format

commit b68efd6e065d80466dec1cfd8d3a8b7bc0092f74
Author: Michael Natterer <mitch gimp org>
Date:   Wed Mar 28 21:37:59 2012 +0200

    app: port gimp_image_pick_color() to return a Babl format
    
    instead of a GimpImageType.

 app/core/gimpimage-pick-color.c     |    6 +-
 app/core/gimpimage-pick-color.h     |    2 +-
 app/core/gimpmarshal.list           |    2 +-
 app/display/gimpcursorview.c        |    8 ++--
 app/tools/gimpairbrushtool.c        |    1 +
 app/tools/gimpcolorpickertool.c     |   16 ++++----
 app/tools/gimpcolortool.c           |   30 +++++++-------
 app/tools/gimpcolortool.h           |    4 +-
 app/tools/gimpconvolvetool.c        |    1 +
 app/tools/gimpcurvestool.c          |    4 +-
 app/tools/gimpdodgeburntool.c       |    1 +
 app/tools/gimperasertool.c          |    1 +
 app/tools/gimphealtool.c            |    1 +
 app/tools/gimpinktool.c             |    1 +
 app/tools/gimplevelstool.c          |    8 ++-
 app/tools/gimppaintbrushtool.c      |    1 +
 app/tools/gimppenciltool.c          |    1 +
 app/tools/gimpsmudgetool.c          |    1 +
 app/widgets/gimpcolorframe.c        |   77 +++++++++++++++++------------------
 app/widgets/gimpcolorframe.h        |    4 +-
 app/widgets/gimpsamplepointeditor.c |    6 +-
 21 files changed, 93 insertions(+), 83 deletions(-)
---
diff --git a/app/core/gimpimage-pick-color.c b/app/core/gimpimage-pick-color.c
index 963f784..818bbe7 100644
--- a/app/core/gimpimage-pick-color.c
+++ b/app/core/gimpimage-pick-color.c
@@ -35,7 +35,7 @@ gimp_image_pick_color (GimpImage     *image,
                        gboolean       sample_merged,
                        gboolean       sample_average,
                        gdouble        average_radius,
-                       GimpImageType *sample_type,
+                       const Babl   **sample_format,
                        GimpRGB       *color,
                        gint          *color_index)
 {
@@ -76,8 +76,8 @@ gimp_image_pick_color (GimpImage     *image,
    * Instead, call gimp_pickable_flush() in the callers if needed.
    */
 
-  if (sample_type)
-    *sample_type = gimp_pickable_get_image_type (pickable);
+  if (sample_format)
+    *sample_format = gimp_pickable_get_format (pickable);
 
   return gimp_pickable_pick_color (pickable, x, y,
                                    sample_average, average_radius,
diff --git a/app/core/gimpimage-pick-color.h b/app/core/gimpimage-pick-color.h
index b115a50..914c92f 100644
--- a/app/core/gimpimage-pick-color.h
+++ b/app/core/gimpimage-pick-color.h
@@ -26,7 +26,7 @@ gboolean   gimp_image_pick_color (GimpImage     *image,
                                   gboolean       sample_merged,
                                   gboolean       sample_average,
                                   gdouble        average_radius,
-                                  GimpImageType *sample_type,
+                                  const Babl   **sample_format,
                                   GimpRGB       *color,
                                   gint          *color_index);
 
diff --git a/app/core/gimpmarshal.list b/app/core/gimpmarshal.list
index e2453d2..faea253 100644
--- a/app/core/gimpmarshal.list
+++ b/app/core/gimpmarshal.list
@@ -37,7 +37,7 @@ VOID: DOUBLE
 VOID: DOUBLE, DOUBLE
 VOID: DOUBLE, DOUBLE, DOUBLE, DOUBLE
 VOID: ENUM
-VOID: ENUM, ENUM, BOXED, INT
+VOID: ENUM, POINTER, BOXED, INT
 VOID: ENUM, INT
 VOID: ENUM, INT, BOOLEAN
 VOID: ENUM, OBJECT
diff --git a/app/display/gimpcursorview.c b/app/display/gimpcursorview.c
index 7218b92..832b5b4 100644
--- a/app/display/gimpcursorview.c
+++ b/app/display/gimpcursorview.c
@@ -725,7 +725,7 @@ gimp_cursor_view_update_cursor (GimpCursorView   *view,
   GimpUnit      unit = shell_unit;
   gboolean      in_image;
   gchar         buf[32];
-  GimpImageType sample_type;
+  const Babl   *sample_format;
   GimpRGB       color;
   gint          color_index;
   gdouble       xres;
@@ -763,12 +763,12 @@ gimp_cursor_view_update_cursor (GimpCursorView   *view,
                              (gint) floor (y),
                              view->priv->sample_merged,
                              FALSE, 0.0,
-                             &sample_type, &color, &color_index))
+                             &sample_format, &color, &color_index))
     {
       gimp_color_frame_set_color (GIMP_COLOR_FRAME (view->priv->color_frame_1),
-                                  sample_type, &color, color_index);
+                                  sample_format, &color, color_index);
       gimp_color_frame_set_color (GIMP_COLOR_FRAME (view->priv->color_frame_2),
-                                  sample_type, &color, color_index);
+                                  sample_format, &color, color_index);
     }
   else
     {
diff --git a/app/tools/gimpairbrushtool.c b/app/tools/gimpairbrushtool.c
index 2dc2e72..85a67a9 100644
--- a/app/tools/gimpairbrushtool.c
+++ b/app/tools/gimpairbrushtool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimpcolorpickertool.c b/app/tools/gimpcolorpickertool.c
index f20237e..f1a396c 100644
--- a/app/tools/gimpcolorpickertool.c
+++ b/app/tools/gimpcolorpickertool.c
@@ -61,7 +61,7 @@ static void   gimp_color_picker_tool_oper_update   (GimpTool            *tool,
 
 static void   gimp_color_picker_tool_picked        (GimpColorTool       *color_tool,
                                                     GimpColorPickState   pick_state,
-                                                    GimpImageType        sample_type,
+                                                    const Babl          *sample_format,
                                                     const GimpRGB       *color,
                                                     gint                 color_index);
 
@@ -70,7 +70,7 @@ static void   gimp_color_picker_tool_info_response (GtkWidget           *widget,
                                                     gint                 response_id,
                                                     GimpColorPickerTool *picker_tool);
 static void   gimp_color_picker_tool_info_update   (GimpColorPickerTool *picker_tool,
-                                                    GimpImageType        sample_type,
+                                                    const Babl          *sample_format,
                                                     const GimpRGB       *color,
                                                     gint                 color_index);
 
@@ -272,7 +272,7 @@ gimp_color_picker_tool_oper_update (GimpTool         *tool,
 static void
 gimp_color_picker_tool_picked (GimpColorTool      *color_tool,
                                GimpColorPickState  pick_state,
-                               GimpImageType       sample_type,
+                               const Babl         *sample_format,
                                const GimpRGB      *color,
                                gint                color_index)
 {
@@ -285,11 +285,11 @@ gimp_color_picker_tool_picked (GimpColorTool      *color_tool,
     gimp_color_picker_tool_info_create (picker_tool);
 
   if (picker_tool->dialog)
-    gimp_color_picker_tool_info_update (picker_tool, sample_type,
+    gimp_color_picker_tool_info_update (picker_tool, sample_format,
                                         color, color_index);
 
   GIMP_COLOR_TOOL_CLASS (parent_class)->picked (color_tool, pick_state,
-                                                sample_type, color,
+                                                sample_format, color,
                                                 color_index);
 }
 
@@ -374,7 +374,7 @@ gimp_color_picker_tool_info_response (GtkWidget           *widget,
 
 static void
 gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
-                                    GimpImageType        sample_type,
+                                    const Babl          *sample_format,
                                     const GimpRGB       *color,
                                     gint                 color_index)
 {
@@ -390,9 +390,9 @@ gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
                              color);
 
   gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame1),
-                              sample_type, color, color_index);
+                              sample_format, color, color_index);
   gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame2),
-                              sample_type, color, color_index);
+                              sample_format, color, color_index);
 
   /*  don't use gtk_window_present() because it would focus the dialog  */
   if (gtk_widget_get_visible (picker_tool->dialog))
diff --git a/app/tools/gimpcolortool.c b/app/tools/gimpcolortool.c
index 1e0d0eb..e00aab5 100644
--- a/app/tools/gimpcolortool.c
+++ b/app/tools/gimpcolortool.c
@@ -104,7 +104,7 @@ static void   gimp_color_tool_draw           (GimpDrawTool          *draw_tool);
 static gboolean   gimp_color_tool_real_pick  (GimpColorTool         *color_tool,
                                               gint                   x,
                                               gint                   y,
-                                              GimpImageType         *sample_type,
+                                              const Babl           **sample_format,
                                               GimpRGB               *color,
                                               gint                  *color_index);
 static void   gimp_color_tool_pick           (GimpColorTool         *tool,
@@ -113,7 +113,7 @@ static void   gimp_color_tool_pick           (GimpColorTool         *tool,
                                               gint                   y);
 static void   gimp_color_tool_real_picked    (GimpColorTool         *color_tool,
                                               GimpColorPickState     pick_state,
-                                              GimpImageType          sample_type,
+                                              const Babl            *sample_format,
                                               const GimpRGB         *color,
                                               gint                   color_index);
 
@@ -138,7 +138,7 @@ gimp_color_tool_class_init (GimpColorToolClass *klass)
                   G_SIGNAL_RUN_FIRST,
                   G_STRUCT_OFFSET (GimpColorToolClass, picked),
                   NULL, NULL,
-                  gimp_marshal_VOID__ENUM_ENUM_BOXED_INT,
+                  gimp_marshal_VOID__ENUM_POINTER_BOXED_INT,
                   G_TYPE_NONE, 4,
                   GIMP_TYPE_COLOR_PICK_STATE,
                   GIMP_TYPE_IMAGE_TYPE,
@@ -570,12 +570,12 @@ gimp_color_tool_draw (GimpDrawTool *draw_tool)
 }
 
 static gboolean
-gimp_color_tool_real_pick (GimpColorTool *color_tool,
-                           gint           x,
-                           gint           y,
-                           GimpImageType *sample_type,
-                           GimpRGB       *color,
-                           gint          *color_index)
+gimp_color_tool_real_pick (GimpColorTool  *color_tool,
+                           gint            x,
+                           gint            y,
+                           const Babl    **sample_format,
+                           GimpRGB        *color,
+                           gint           *color_index)
 {
   GimpTool  *tool  = GIMP_TOOL (color_tool);
   GimpImage *image = gimp_display_get_image (tool->display);
@@ -587,7 +587,7 @@ gimp_color_tool_real_pick (GimpColorTool *color_tool,
                                 color_tool->options->sample_merged,
                                 color_tool->options->sample_average,
                                 color_tool->options->average_radius,
-                                sample_type,
+                                sample_format,
                                 color,
                                 color_index);
 }
@@ -595,7 +595,7 @@ gimp_color_tool_real_pick (GimpColorTool *color_tool,
 static void
 gimp_color_tool_real_picked (GimpColorTool      *color_tool,
                              GimpColorPickState  pick_state,
-                             GimpImageType       sample_type,
+                             const Babl         *sample_format,
                              const GimpRGB      *color,
                              gint                color_index)
 {
@@ -610,7 +610,7 @@ gimp_color_tool_real_picked (GimpColorTool      *color_tool,
     {
       GtkWidget *widget;
 
-      if (GIMP_IMAGE_TYPE_IS_INDEXED (sample_type))
+      if (babl_format_is_palette (sample_format))
         {
           widget = gimp_dialog_factory_find_widget (gimp_dialog_factory_get_singleton (),
                                                     "gimp-indexed-palette");
@@ -704,17 +704,17 @@ gimp_color_tool_pick (GimpColorTool      *tool,
                       gint                y)
 {
   GimpColorToolClass *klass;
-  GimpImageType       sample_type;
+  const Babl         *sample_format;
   GimpRGB             color;
   gint                color_index;
 
   klass = GIMP_COLOR_TOOL_GET_CLASS (tool);
 
   if (klass->pick &&
-      klass->pick (tool, x, y, &sample_type, &color, &color_index))
+      klass->pick (tool, x, y, &sample_format, &color, &color_index))
     {
       g_signal_emit (tool, gimp_color_tool_signals[PICKED], 0,
-                     pick_state, sample_type, &color, color_index);
+                     pick_state, sample_format, &color, color_index);
     }
 }
 
diff --git a/app/tools/gimpcolortool.h b/app/tools/gimpcolortool.h
index e2e278d..7599ddd 100644
--- a/app/tools/gimpcolortool.h
+++ b/app/tools/gimpcolortool.h
@@ -59,14 +59,14 @@ struct _GimpColorToolClass
   gboolean (* pick)   (GimpColorTool      *tool,
                        gint                x,
                        gint                y,
-                       GimpImageType      *sample_type,
+                       const Babl        **sample_format,
                        GimpRGB            *color,
                        gint               *color_index);
 
   /*  signals  */
   void     (* picked) (GimpColorTool      *tool,
                        GimpColorPickState  pick_state,
-                       GimpImageType       sample_type,
+                       const Babl         *sample_format,
                        const GimpRGB      *color,
                        gint                color_index);
 };
diff --git a/app/tools/gimpconvolvetool.c b/app/tools/gimpconvolvetool.c
index 471e373..b2f46d2 100644
--- a/app/tools/gimpconvolvetool.c
+++ b/app/tools/gimpconvolvetool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimpcurvestool.c b/app/tools/gimpcurvestool.c
index 8e056cb..3e52b55 100644
--- a/app/tools/gimpcurvestool.c
+++ b/app/tools/gimpcurvestool.c
@@ -82,7 +82,7 @@ static void       gimp_curves_tool_oper_update    (GimpTool             *tool,
 
 static void       gimp_curves_tool_color_picked   (GimpColorTool        *color_tool,
                                                    GimpColorPickState    pick_state,
-                                                   GimpImageType         sample_type,
+                                                   const Babl           *sample_format,
                                                    const GimpRGB        *color,
                                                    gint                  color_index);
 static GeglNode * gimp_curves_tool_get_operation  (GimpImageMapTool     *image_map_tool,
@@ -326,7 +326,7 @@ gimp_curves_tool_oper_update (GimpTool         *tool,
 static void
 gimp_curves_tool_color_picked (GimpColorTool      *color_tool,
                                GimpColorPickState  pick_state,
-                               GimpImageType       sample_type,
+                               const Babl         *sample_format,
                                const GimpRGB      *color,
                                gint                color_index)
 {
diff --git a/app/tools/gimpdodgeburntool.c b/app/tools/gimpdodgeburntool.c
index 1f140de..7adaced 100644
--- a/app/tools/gimpdodgeburntool.c
+++ b/app/tools/gimpdodgeburntool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimperasertool.c b/app/tools/gimperasertool.c
index 44474b3..e73c4a8 100644
--- a/app/tools/gimperasertool.c
+++ b/app/tools/gimperasertool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimphealtool.c b/app/tools/gimphealtool.c
index f40bb7f..be13b7f 100644
--- a/app/tools/gimphealtool.c
+++ b/app/tools/gimphealtool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimpinktool.c b/app/tools/gimpinktool.c
index 66316da..49c5b1f 100644
--- a/app/tools/gimpinktool.c
+++ b/app/tools/gimpinktool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimplevelstool.c b/app/tools/gimplevelstool.c
index 51c4c70..26aebb7 100644
--- a/app/tools/gimplevelstool.c
+++ b/app/tools/gimplevelstool.c
@@ -73,7 +73,7 @@ static gboolean   gimp_levels_tool_initialize     (GimpTool          *tool,
 
 static void       gimp_levels_tool_color_picked   (GimpColorTool     *color_tool,
                                                    GimpColorPickState pick_state,
-                                                   GimpImageType      sample_type,
+                                                   const Babl        *sample_format,
                                                    const GimpRGB     *color,
                                                    gint               color_index);
 
@@ -1159,7 +1159,7 @@ levels_input_adjust_by_color (GimpLevelsConfig     *config,
 static void
 gimp_levels_tool_color_picked (GimpColorTool      *color_tool,
                                GimpColorPickState  pick_state,
-                               GimpImageType       sample_type,
+                               const Babl         *sample_format,
                                const GimpRGB      *color,
                                gint                color_index)
 {
@@ -1169,7 +1169,9 @@ gimp_levels_tool_color_picked (GimpColorTool      *color_tool,
   value = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (tool->active_picker),
                                                "pick-value"));
 
-  if (value & PICK_ALL_CHANNELS && GIMP_IMAGE_TYPE_IS_RGB (sample_type))
+  if (value & PICK_ALL_CHANNELS &&
+      (sample_format == babl_format ("R'G'B' u8") ||
+       sample_format == babl_format ("R'G'B'A u8")))
     {
       GimpHistogramChannel  channel;
 
diff --git a/app/tools/gimppaintbrushtool.c b/app/tools/gimppaintbrushtool.c
index 7f07463..32c5623 100644
--- a/app/tools/gimppaintbrushtool.c
+++ b/app/tools/gimppaintbrushtool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimppenciltool.c b/app/tools/gimppenciltool.c
index 42e7b49..fa038c2 100644
--- a/app/tools/gimppenciltool.c
+++ b/app/tools/gimppenciltool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/tools/gimpsmudgetool.c b/app/tools/gimpsmudgetool.c
index 17512bd..7b2fcba 100644
--- a/app/tools/gimpsmudgetool.c
+++ b/app/tools/gimpsmudgetool.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include <gegl.h>
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"
diff --git a/app/widgets/gimpcolorframe.c b/app/widgets/gimpcolorframe.c
index 093ae28..68da1a5 100644
--- a/app/widgets/gimpcolorframe.c
+++ b/app/widgets/gimpcolorframe.c
@@ -116,8 +116,8 @@ gimp_color_frame_init (GimpColorFrame *frame)
   GtkWidget *vbox2;
   gint       i;
 
-  frame->sample_valid = FALSE;
-  frame->sample_type  = GIMP_RGB_IMAGE;
+  frame->sample_valid  = FALSE;
+  frame->sample_format = babl_format ("R'G'B' u8");
 
   gimp_rgba_set (&frame->color, 0.0, 0.0, 0.0, GIMP_OPACITY_OPAQUE);
 
@@ -407,38 +407,37 @@ gimp_color_frame_set_has_color_area (GimpColorFrame *frame,
 
 /**
  * gimp_color_frame_set_color:
- * @frame:       The #GimpColorFrame.
- * @sample_type: The type of the #GimpDrawable or #GimpImage the @color
- *               was picked from.
- * @color:       The @color to set.
- * @color_index: The @color's index. This value is ignored unless
- *               @sample_type equals to #GIMP_INDEXED_IMAGE or
- *               #GIMP_INDEXEDA_IMAGE.
+ * @frame:         The #GimpColorFrame.
+ * @sample_format: The format of the #GimpDrawable or #GimpImage the @color
+ *                 was picked from.
+ * @color:         The @color to set.
+ * @color_index:   The @color's index. This value is ignored unless
+ *                 @sample_format is an indexed format.
  *
  * Sets the color sample to display in the #GimpColorFrame.
  **/
 void
 gimp_color_frame_set_color (GimpColorFrame *frame,
-                            GimpImageType   sample_type,
+                            const Babl     *sample_format,
                             const GimpRGB  *color,
                             gint            color_index)
 {
   g_return_if_fail (GIMP_IS_COLOR_FRAME (frame));
   g_return_if_fail (color != NULL);
 
-  if (frame->sample_valid               &&
-      frame->sample_type == sample_type &&
-      frame->color_index == color_index &&
+  if (frame->sample_valid                   &&
+      frame->sample_format == sample_format &&
+      frame->color_index == color_index     &&
       gimp_rgba_distance (&frame->color, color) < 0.0001)
     {
       frame->color = *color;
       return;
     }
 
-  frame->sample_valid = TRUE;
-  frame->sample_type  = sample_type;
-  frame->color        = *color;
-  frame->color_index  = color_index;
+  frame->sample_valid  = TRUE;
+  frame->sample_format = sample_format;
+  frame->color         = *color;
+  frame->color_index   = color_index;
 
   gimp_color_frame_update (frame);
 }
@@ -492,7 +491,7 @@ gimp_color_frame_update (GimpColorFrame *frame)
   guchar       r, g, b, a;
   gint         i;
 
-  has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (frame->sample_type);
+  has_alpha = babl_format_has_alpha (frame->sample_format);
 
   if (frame->sample_valid)
     {
@@ -505,22 +504,18 @@ gimp_color_frame_update (GimpColorFrame *frame)
   switch (frame->frame_mode)
     {
     case GIMP_COLOR_FRAME_MODE_PIXEL:
-      switch (GIMP_IMAGE_TYPE_BASE_TYPE (frame->sample_type))
+      if (frame->sample_format == babl_format ("Y' u8") ||
+          frame->sample_format == babl_format ("Y'A u8"))
         {
-        case GIMP_INDEXED:
-          names[4] = _("Index:");
+          names[0]  = _("Value:");
 
           if (frame->sample_valid)
-            {
-              /* color_index will be -1 for an averaged sample */
-              if (frame->color_index < 0)
-                names[4] = NULL;
-              else
-                values[4] = g_strdup_printf ("%d", frame->color_index);
-            }
-          /* fallthrough */
+            values[0] = g_strdup_printf ("%d", r);
 
-        case GIMP_RGB:
+          alpha_row = 1;
+        }
+      else
+        {
           names[0] = _("Red:");
           names[1] = _("Green:");
           names[2] = _("Blue:");
@@ -533,16 +528,20 @@ gimp_color_frame_update (GimpColorFrame *frame)
             }
 
           alpha_row = 3;
-          break;
 
-        case GIMP_GRAY:
-          names[0]  = _("Value:");
-
-          if (frame->sample_valid)
-            values[0] = g_strdup_printf ("%d", r);
-
-          alpha_row = 1;
-          break;
+          if (babl_format_is_palette (frame->sample_format))
+            {
+              names[4] = _("Index:");
+
+              if (frame->sample_valid)
+                {
+                  /* color_index will be -1 for an averaged sample */
+                  if (frame->color_index < 0)
+                    names[4] = NULL;
+                  else
+                    values[4] = g_strdup_printf ("%d", frame->color_index);
+                }
+            }
         }
       break;
 
diff --git a/app/widgets/gimpcolorframe.h b/app/widgets/gimpcolorframe.h
index 7b5e6a6..d77d2fd 100644
--- a/app/widgets/gimpcolorframe.h
+++ b/app/widgets/gimpcolorframe.h
@@ -37,7 +37,7 @@ struct _GimpColorFrame
   GimpFrame           parent_instance;
 
   gboolean            sample_valid;
-  GimpImageType       sample_type;
+  const Babl         *sample_format;
   GimpRGB             color;
   gint                color_index;
 
@@ -78,7 +78,7 @@ void        gimp_color_frame_set_has_color_area (GimpColorFrame     *frame,
                                                  gboolean            has_color_area);
 
 void        gimp_color_frame_set_color          (GimpColorFrame     *frame,
-                                                 GimpImageType       sample_type,
+                                                 const Babl         *format,
                                                  const GimpRGB      *color,
                                                  gint                color_index);
 void        gimp_color_frame_set_invalid        (GimpColorFrame     *frame);
diff --git a/app/widgets/gimpsamplepointeditor.c b/app/widgets/gimpsamplepointeditor.c
index 54069de..56f3fbc 100644
--- a/app/widgets/gimpsamplepointeditor.c
+++ b/app/widgets/gimpsamplepointeditor.c
@@ -467,7 +467,7 @@ gimp_sample_point_editor_update (GimpSamplePointEditor *editor)
         {
           GimpSamplePoint *sample_point = list->data;
           GimpColorFrame  *color_frame;
-          GimpImageType    image_type;
+          const Babl      *format;
           GimpRGB          color;
           gint             color_index;
 
@@ -480,11 +480,11 @@ gimp_sample_point_editor_update (GimpSamplePointEditor *editor)
                                      sample_point->y,
                                      editor->sample_merged,
                                      FALSE, 0.0,
-                                     &image_type,
+                                     &format,
                                      &color,
                                      &color_index))
             {
-              gimp_color_frame_set_color (color_frame, image_type,
+              gimp_color_frame_set_color (color_frame, format,
                                           &color, color_index);
             }
           else
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