[gimp/gimp-2-8] Bug 719634 - Palette editor not working for New Palettes (cannot drop colors)

[Michael Natterer <mitch src gnome org>]

commit 5847d56f365ca5cf3b57601f01924ec609696ec1
Author: Michael Natterer <mitch gimp org>
Date:   Sun Dec 1 18:04:51 2013 +0100

    Bug 719634 - Palette editor not working for New Palettes (cannot drop colors)
    
    Allow to drop colors also on the palette view's parent viewport, so
    colors can be dropped everywhere inside the scrolled window, also when
    the palette view is invisible because it has zero colors. Also allow
    dropping of palettes on the viewport to change the editor's active
    palette.
    
    (cherry picked from commit 0e1978d27346c6ba952945d48c50c0bb64ec1ca8)

 app/widgets/gimppaletteeditor.c |   35 ++++++++++++++++++++++++++++++++++-
 1 files changed, 34 insertions(+), 1 deletions(-)
---
diff --git a/app/widgets/gimppaletteeditor.c b/app/widgets/gimppaletteeditor.c
index 04914f4..0e9ed22 100644
--- a/app/widgets/gimppaletteeditor.c
+++ b/app/widgets/gimppaletteeditor.c
@@ -87,6 +87,11 @@ static void   palette_editor_drop_palette          (GtkWidget         *widget,
                                                     gint               y,
                                                     GimpViewable      *viewable,
                                                     gpointer           data);
+static void   palette_editor_drop_color            (GtkWidget         *widget,
+                                                    gint               x,
+                                                    gint               y,
+                                                    const GimpRGB     *color,
+                                                    gpointer           data);
 
 static void   palette_editor_entry_clicked         (GimpPaletteView   *view,
                                                     GimpPaletteEntry  *entry,
@@ -212,9 +217,18 @@ gimp_palette_editor_init (GimpPaletteEditor *editor)
                     G_CALLBACK (palette_editor_color_dropped),
                     editor);
 
-  gimp_dnd_viewable_dest_add (editor->view, GIMP_TYPE_PALETTE,
+  gimp_dnd_viewable_dest_add (editor->view,
+                              GIMP_TYPE_PALETTE,
                               palette_editor_drop_palette,
                               editor);
+  gimp_dnd_viewable_dest_add (gtk_widget_get_parent (editor->view),
+                              GIMP_TYPE_PALETTE,
+                              palette_editor_drop_palette,
+                              editor);
+
+  gimp_dnd_color_dest_add (gtk_widget_get_parent (editor->view),
+                           palette_editor_drop_color,
+                           editor);
 
   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
   gtk_box_pack_start (GTK_BOX (editor), hbox, FALSE, FALSE, 0);
@@ -643,6 +657,25 @@ palette_editor_drop_palette (GtkWidget    *widget,
   gimp_data_editor_set_data (GIMP_DATA_EDITOR (data), GIMP_DATA (viewable));
 }
 
+static void
+palette_editor_drop_color (GtkWidget     *widget,
+                           gint           x,
+                           gint           y,
+                           const GimpRGB *color,
+                           gpointer       data)
+{
+  GimpPaletteEditor *editor = data;
+
+  if (GIMP_DATA_EDITOR (editor)->data_editable)
+    {
+      GimpPalette      *palette = GIMP_PALETTE (GIMP_DATA_EDITOR (editor)->data);
+      GimpPaletteEntry *entry;
+
+      entry = gimp_palette_add_entry (palette, -1, NULL, color);
+      gimp_palette_view_select_entry (GIMP_PALETTE_VIEW (editor->view), entry);
+    }
+}
+
 
 /*  palette view callbacks  */