Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 249 insertions, 0 deletions

diff --git a/app/file/file-utils.c b/app/file/file-utils.c
new file mode 100644
index 0000000..230c1ef
--- /dev/null
+++ b/app/file/file-utils.c
@@ -0,0 +1,249 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995, 1996, 1997 Spencer Kimball and Peter Mattis
+ * Copyright (C) 1997 Josh MacDonald
+ *
+ * file-utils.c
+ *
+ * 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 <string.h>
+
+#include <gegl.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpmath/gimpmath.h"
+#include "libgimpthumb/gimpthumb.h"
+
+#include "core/core-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpimage.h"
+#include "core/gimpimagefile.h"
+
+#include "plug-in/gimppluginmanager-file.h"
+
+#include "file-utils.h"
+
+#include "gimp-intl.h"
+
+
+static gboolean
+file_utils_filename_is_uri (const gchar  *filename,
+                            GError      **error)
+{
+  g_return_val_if_fail (filename != NULL, FALSE);
+  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+  if (strstr (filename, "://"))
+    {
+      gchar *scheme;
+      gchar *canon;
+
+      scheme = g_strndup (filename, (strstr (filename, "://") - filename));
+      canon  = g_strdup (scheme);
+
+      g_strcanon (canon, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "+-.", '-');
+
+      if (strcmp (scheme, canon) || ! g_ascii_isgraph (canon[0]))
+        {
+          g_set_error (error, G_FILE_ERROR, 0,
+                       _("'%s:' is not a valid URI scheme"), scheme);
+
+          g_free (scheme);
+          g_free (canon);
+
+          return FALSE;
+        }
+
+      g_free (scheme);
+      g_free (canon);
+
+      if (! g_utf8_validate (filename, -1, NULL))
+        {
+          g_set_error_literal (error,
+                               G_CONVERT_ERROR,
+                               G_CONVERT_ERROR_ILLEGAL_SEQUENCE,
+                               _("Invalid character sequence in URI"));
+          return FALSE;
+        }
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+GFile *
+file_utils_filename_to_file (Gimp         *gimp,
+                             const gchar  *filename,
+                             GError      **error)
+{
+  GFile  *file;
+  gchar  *absolute;
+  GError *temp_error = NULL;
+
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+  g_return_val_if_fail (filename != NULL, NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+  file = g_file_new_for_uri (filename);
+
+  if (! file)
+    {
+      /* Despite the docs says it never fails, it actually can on Windows.
+       * See issue #3093 (and glib#1819).
+       */
+      g_set_error_literal (error,
+                           G_CONVERT_ERROR,
+                           G_CONVERT_ERROR_ILLEGAL_SEQUENCE,
+                           _("Invalid character sequence in URI"));
+      return NULL;
+    }
+
+  /*  check for prefixes like http or ftp  */
+  if (gimp_plug_in_manager_file_procedure_find_by_prefix (gimp->plug_in_manager,
+                                                          GIMP_FILE_PROCEDURE_GROUP_OPEN,
+                                                          file))
+    {
+      if (g_utf8_validate (filename, -1, NULL))
+        {
+          return file;
+        }
+      else
+        {
+          g_set_error_literal (error,
+                               G_CONVERT_ERROR,
+                               G_CONVERT_ERROR_ILLEGAL_SEQUENCE,
+                               _("Invalid character sequence in URI"));
+          return NULL;
+        }
+    }
+  else if (file_utils_filename_is_uri (filename, &temp_error))
+    {
+      return file;
+    }
+  else if (temp_error)
+    {
+      g_propagate_error (error, temp_error);
+      g_object_unref (file);
+
+      return NULL;
+    }
+
+  g_object_unref (file);
+
+  if (! g_path_is_absolute (filename))
+    {
+      gchar *current;
+
+      current = g_get_current_dir ();
+      absolute = g_build_filename (current, filename, NULL);
+      g_free (current);
+    }
+  else
+    {
+      absolute = g_strdup (filename);
+    }
+
+  file = g_file_new_for_path (absolute);
+
+  g_free (absolute);
+
+  return file;
+}
+
+GdkPixbuf *
+file_utils_load_thumbnail (const gchar *filename)
+{
+  GimpThumbnail *thumbnail = NULL;
+  GdkPixbuf     *pixbuf    = NULL;
+  gchar         *uri;
+
+  g_return_val_if_fail (filename != NULL, NULL);
+
+  uri = g_filename_to_uri (filename, NULL, NULL);
+
+  if (uri)
+    {
+      thumbnail = gimp_thumbnail_new ();
+      gimp_thumbnail_set_uri (thumbnail, uri);
+
+      pixbuf = gimp_thumbnail_load_thumb (thumbnail,
+                                          (GimpThumbSize) GIMP_THUMBNAIL_SIZE_NORMAL,
+                                          NULL);
+    }
+
+  g_free (uri);
+
+  if (pixbuf)
+    {
+      gint width  = gdk_pixbuf_get_width (pixbuf);
+      gint height = gdk_pixbuf_get_height (pixbuf);
+
+      if (gdk_pixbuf_get_n_channels (pixbuf) != 3)
+        {
+          GdkPixbuf *tmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
+                                           width, height);
+
+          gdk_pixbuf_composite_color (pixbuf, tmp,
+                                      0, 0, width, height, 0, 0, 1.0, 1.0,
+                                      GDK_INTERP_NEAREST, 255,
+                                      0, 0, GIMP_CHECK_SIZE_SM,
+                                      0x66666666, 0x99999999);
+
+          g_object_unref (pixbuf);
+          pixbuf = tmp;
+        }
+    }
+
+  return pixbuf;
+}
+
+gboolean
+file_utils_save_thumbnail (GimpImage   *image,
+                           const gchar *filename)
+{
+  GFile    *file;
+  gboolean  success = FALSE;
+
+  g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
+  g_return_val_if_fail (filename != NULL, FALSE);
+
+  file = gimp_image_get_file (image);
+
+  if (file)
+    {
+      gchar *image_uri = g_file_get_uri (file);
+      gchar *uri       = g_filename_to_uri (filename, NULL, NULL);
+
+      if (uri && image_uri && ! strcmp (uri, image_uri))
+        {
+          GimpImagefile *imagefile;
+
+          imagefile = gimp_imagefile_new (image->gimp, file);
+          success = gimp_imagefile_save_thumbnail (imagefile, NULL, image,
+                                                   NULL);
+          g_object_unref (imagefile);
+        }
+
+      g_free (image_uri);
+      g_free (uri);
+    }
+
+  return success;
+}