[gimp] libgimpbase: add an own struct for GimpStringArray

[Michael Natterer <mitch src gnome org>]

commit 738b17063a16f8fd90dafdebbfc8b4da9ca86327
Author: Michael Natterer <mitch gimp org>
Date:   Wed Sep 4 19:21:45 2019 +0200

    libgimpbase: add an own struct for GimpStringArray
    
    instead of re-using the GimpArray struct, which was confusing
    particularly because of the meaning of the "length" member.

 libgimpbase/gimpparamspecs.c | 6 +++---
 libgimpbase/gimpparamspecs.h | 9 ++++++++-
 2 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/libgimpbase/gimpparamspecs.c b/libgimpbase/gimpparamspecs.c
index 64d7241447..f1daa6fee7 100644
--- a/libgimpbase/gimpparamspecs.c
+++ b/libgimpbase/gimpparamspecs.c
@@ -860,11 +860,11 @@ gimp_string_array_new (const gchar **data,
       for (i = 0; i < length; i++)
         tmp[i] = g_strdup (data[i]);
 
-      array->data = (guint8 *) tmp;
+      array->data = tmp;
     }
   else
     {
-      array->data = (guint8 *) data;
+      array->data = (gchar **) data;
     }
 
   array->length      = length;
@@ -898,7 +898,7 @@ gimp_string_array_free (GimpStringArray *array)
     {
       if (! array->static_data)
         {
-          gchar **tmp = (gchar **) array->data;
+          gchar **tmp = array->data;
           gint    i;
 
           for (i = 0; i < array->length; i++)
diff --git a/libgimpbase/gimpparamspecs.h b/libgimpbase/gimpparamspecs.h
index 20985cdaf7..ae12246981 100644
--- a/libgimpbase/gimpparamspecs.h
+++ b/libgimpbase/gimpparamspecs.h
@@ -306,7 +306,14 @@ void            gimp_value_take_float_array       (GValue        *value,
  * GIMP_TYPE_STRING_ARRAY
  */
 
-typedef struct _GimpArray GimpStringArray;
+typedef struct _GimpStringArray GimpStringArray;
+
+struct _GimpStringArray
+{
+  gchar   **data;
+  gsize     length;
+  gboolean  static_data;
+};
 
 GimpStringArray * gimp_string_array_new  (const gchar          **data,
                                           gsize                  length,