Adding upstream version 2.10.34.upstream/2.10.34upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 346 insertions, 0 deletions

diff --git a/app/core/gimp-internal-data.c b/app/core/gimp-internal-data.c
new file mode 100644
index 0000000..6653946
--- /dev/null
+++ b/app/core/gimp-internal-data.c
@@ -0,0 +1,346 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-2002 Spencer Kimball, Peter Mattis, and others
+ *
+ * gimp-internal-data.c
+ * Copyright (C) 2017 Ell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimp.h"
+#include "gimp-gradients.h"
+#include "gimp-internal-data.h"
+#include "gimpdata.h"
+#include "gimpdataloaderfactory.h"
+#include "gimperror.h"
+#include "gimpgradient-load.h"
+
+#include "gimp-intl.h"
+
+
+#define GIMP_INTERNAL_DATA_DIRECTORY "internal-data"
+
+
+typedef GimpData * (* GimpDataGetFunc) (Gimp *gimp);
+
+
+typedef struct _GimpInternalDataFile GimpInternalDataFile;
+
+struct _GimpInternalDataFile
+{
+  const gchar      *name;
+  GimpDataGetFunc   get_func;
+  GimpDataLoadFunc  load_func;
+};
+
+
+/*  local function prototypes  */
+
+static gboolean   gimp_internal_data_create_directory (GError                     **error);
+
+static GFile    * gimp_internal_data_get_file         (const GimpInternalDataFile  *data_file);
+
+static gboolean   gimp_internal_data_load_data_file   (Gimp                        *gimp,
+                                                       const GimpInternalDataFile  *data_file,
+                                                       GError                     **error);
+static gboolean   gimp_internal_data_save_data_file   (Gimp                        *gimp,
+                                                       const GimpInternalDataFile  *data_file,
+                                                       GError                     **error);
+static gboolean   gimp_internal_data_delete_data_file (Gimp                        *gimp,
+                                                       const GimpInternalDataFile  *data_file,
+                                                       GError                     **error);
+
+/*  static variables  */
+
+static const GimpInternalDataFile internal_data_files[] =
+{
+  /* Custom gradient */
+  {
+    .name      = "custom" GIMP_GRADIENT_FILE_EXTENSION,
+    .get_func  = (GimpDataGetFunc) gimp_gradients_get_custom,
+    .load_func = gimp_gradient_load
+  }
+};
+
+
+/*  public functions  */
+
+gboolean
+gimp_internal_data_load (Gimp    *gimp,
+                         GError **error)
+{
+  gint i;
+
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+  for (i = 0; i < G_N_ELEMENTS (internal_data_files); i++)
+    {
+      const GimpInternalDataFile *data_file = &internal_data_files[i];
+
+      if (! gimp_internal_data_load_data_file (gimp, data_file, error))
+        return FALSE;
+    }
+
+  return TRUE;
+}
+
+gboolean
+gimp_internal_data_save (Gimp    *gimp,
+                         GError **error)
+{
+  gint i;
+
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+  if (! gimp_internal_data_create_directory (error))
+    return FALSE;
+
+  for (i = 0; i < G_N_ELEMENTS (internal_data_files); i++)
+    {
+      const GimpInternalDataFile *data_file = &internal_data_files[i];
+
+      if (! gimp_internal_data_save_data_file (gimp, data_file, error))
+        return FALSE;
+    }
+
+  return TRUE;
+}
+
+gboolean
+gimp_internal_data_clear (Gimp    *gimp,
+                          GError **error)
+{
+  gint i;
+
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+  for (i = 0; i < G_N_ELEMENTS (internal_data_files); i++)
+    {
+      const GimpInternalDataFile *data_file = &internal_data_files[i];
+
+      if (! gimp_internal_data_delete_data_file (gimp, data_file, error))
+        return FALSE;
+    }
+
+  return TRUE;
+}
+
+
+/*  private functions  */
+
+static gboolean
+gimp_internal_data_create_directory (GError **error)
+{
+  GFile    *directory;
+  GError   *my_error = NULL;
+  gboolean  success;
+
+  directory = gimp_directory_file (GIMP_INTERNAL_DATA_DIRECTORY, NULL);
+
+  success = g_file_make_directory (directory, NULL, &my_error);
+
+  g_object_unref (directory);
+
+  if (! success)
+    {
+      if (my_error->code == G_IO_ERROR_EXISTS)
+        {
+          g_clear_error (&my_error);
+          success = TRUE;
+        }
+      else
+        {
+          g_propagate_error (error, my_error);
+        }
+    }
+
+  return success;
+}
+
+static GFile *
+gimp_internal_data_get_file (const GimpInternalDataFile *data_file)
+{
+  return gimp_directory_file (GIMP_INTERNAL_DATA_DIRECTORY,
+                              data_file->name,
+                              NULL);
+}
+
+static gboolean
+gimp_internal_data_load_data_file (Gimp                        *gimp,
+                                   const GimpInternalDataFile  *data_file,
+                                   GError                     **error)
+{
+  GFile        *file;
+  GInputStream *input;
+  GimpData     *data;
+  GList        *list;
+  GError       *my_error = NULL;
+
+  file = gimp_internal_data_get_file (data_file);
+
+  if (gimp->be_verbose)
+    g_print ("Parsing '%s'\n", gimp_file_get_utf8_name (file));
+
+  input = G_INPUT_STREAM (g_file_read (file, NULL, &my_error));
+
+  if (! input)
+    {
+      g_object_unref (file);
+
+      if (my_error->code == G_IO_ERROR_NOT_FOUND)
+        {
+          g_clear_error (&my_error);
+          return TRUE;
+        }
+      else
+        {
+          g_propagate_error (error, my_error);
+          return FALSE;
+        }
+    }
+
+  list = data_file->load_func (gimp->user_context, file, input, error);
+
+  g_object_unref (input);
+  g_object_unref (file);
+
+  if (! list)
+    return FALSE;
+
+  data = data_file->get_func (gimp);
+
+  gimp_data_copy (data, GIMP_DATA (list->data));
+
+  g_list_free_full (list, g_object_unref);
+
+  return TRUE;
+}
+
+static gboolean
+gimp_internal_data_save_data_file (Gimp                        *gimp,
+                                   const GimpInternalDataFile  *data_file,
+                                   GError                     **error)
+{
+  GFile         *file;
+  GOutputStream *output;
+  GimpData      *data;
+  gboolean       success;
+
+  file = gimp_internal_data_get_file (data_file);
+
+  if (gimp->be_verbose)
+    g_print ("Writing '%s'\n", gimp_file_get_utf8_name (file));
+
+  output = G_OUTPUT_STREAM (g_file_replace (file, NULL, FALSE,
+                                            G_FILE_CREATE_NONE,
+                                            NULL, error));
+
+  if (! output)
+    {
+      g_object_unref (file);
+
+      return FALSE;
+    }
+
+  data = data_file->get_func (gimp);
+
+  /* we bypass gimp_data_save() and call the data's save() virtual function
+   * directly, since gimp_data_save() is a nop for internal data.
+   *
+   * FIXME:  we save the data whether it's dirty or not, since it might not
+   * exist on disk.  currently, we only use this for cheap data, such as
+   * gradients, so this is not a big concern, but if we save more expensive
+   * data in the future, we should fix this.
+   */
+  gimp_assert (GIMP_DATA_GET_CLASS (data)->save);
+  success = GIMP_DATA_GET_CLASS (data)->save (data, output, error);
+
+  if (success)
+    {
+      if (! g_output_stream_close (output, NULL, error))
+        {
+          g_prefix_error (error,
+                          _("Error saving '%s': "),
+                          gimp_file_get_utf8_name (file));
+          success = FALSE;
+        }
+    }
+  else
+    {
+      GCancellable *cancellable = g_cancellable_new ();
+
+      g_cancellable_cancel (cancellable);
+      if (error && *error)
+        {
+          g_prefix_error (error,
+                          _("Error saving '%s': "),
+                          gimp_file_get_utf8_name (file));
+        }
+      else
+        {
+          g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_WRITE,
+                       _("Error saving '%s'"),
+                       gimp_file_get_utf8_name (file));
+        }
+      g_output_stream_close (output, cancellable, NULL);
+      g_object_unref (cancellable);
+    }
+
+  g_object_unref (output);
+  g_object_unref (file);
+
+  return success;
+}
+
+static gboolean
+gimp_internal_data_delete_data_file (Gimp                        *gimp,
+                                     const GimpInternalDataFile  *data_file,
+                                     GError                     **error)
+{
+  GFile    *file;
+  GError   *my_error = NULL;
+  gboolean  success  = TRUE;
+
+  file = gimp_internal_data_get_file (data_file);
+
+  if (gimp->be_verbose)
+    g_print ("Deleting '%s'\n", gimp_file_get_utf8_name (file));
+
+  if (! g_file_delete (file, NULL, &my_error) &&
+      my_error->code != G_IO_ERROR_NOT_FOUND)
+    {
+      success = FALSE;
+
+      g_set_error (error, GIMP_ERROR, GIMP_FAILED,
+                   _("Deleting \"%s\" failed: %s"),
+                   gimp_file_get_utf8_name (file), my_error->message);
+    }
+
+  g_clear_error (&my_error);
+  g_object_unref (file);
+
+  return success;
+}