1 files changed, 153 insertions, 0 deletions
diff --git a/app/core/gimpmybrush-load.c b/app/core/gimpmybrush-load.c
new file mode 100644
index 0000000..1dbb9f5
--- /dev/null
+++ b/app/core/gimpmybrush-load.c
@@ -0,0 +1,153 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpmybrush-load.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 <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include <mypaint-brush.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimpmybrush.h"
+#include "gimpmybrush-load.h"
+#include "gimpmybrush-private.h"
+
+#include "gimp-intl.h"
+
+
+/*  public functions  */
+
+GList *
+gimp_mybrush_load (GimpContext   *context,
+                   GFile         *file,
+                   GInputStream  *input,
+                   GError       **error)
+{
+  GimpMybrush  *brush = NULL;
+  MyPaintBrush *mypaint_brush;
+  GdkPixbuf    *pixbuf;
+  GFileInfo    *info;
+  guint64       size;
+  guchar       *buffer;
+  gchar        *path;
+  gchar        *basename;
+  gchar        *preview_filename;
+  gchar        *p;
+
+  g_return_val_if_fail (G_IS_FILE (file), NULL);
+  g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+  info = g_file_query_info (file,
+                            G_FILE_ATTRIBUTE_STANDARD_SIZE,
+                            G_FILE_QUERY_INFO_NONE,
+                            NULL, error);
+  if (! info)
+    return NULL;
+
+  size = g_file_info_get_attribute_uint64 (info,
+                                           G_FILE_ATTRIBUTE_STANDARD_SIZE);
+  g_object_unref (info);
+
+  if (size > 32768)
+    {
+      g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
+                   _("MyPaint brush file is unreasonably large, skipping."));
+      return NULL;
+    }
+
+  buffer = g_new0 (guchar, size + 1);
+
+  if (! g_input_stream_read_all (input, buffer, size, NULL, NULL, error))
+    {
+      g_free (buffer);
+      return NULL;
+    }
+
+  mypaint_brush = mypaint_brush_new ();
+  mypaint_brush_from_defaults (mypaint_brush);
+
+  if (! mypaint_brush_from_string (mypaint_brush, (const gchar *) buffer))
+    {
+      g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
+                   _("Failed to deserialize MyPaint brush."));
+      mypaint_brush_unref (mypaint_brush);
+      g_free (buffer);
+      return NULL;
+    }
+
+  path = g_file_get_path (file);
+  basename = g_strndup (path, strlen (path) - 4);
+  g_free (path);
+
+  preview_filename = g_strconcat (basename, "_prev.png", NULL);
+  g_free (basename);
+
+  pixbuf = gdk_pixbuf_new_from_file_at_size (preview_filename,
+                                             48, 48, error);
+  g_free (preview_filename);
+
+  basename = g_path_get_basename (gimp_file_get_utf8_name (file));
+
+  basename[strlen (basename) - 4] = '\0';
+  for (p = basename; *p; p++)
+    if (*p == '_' || *p == '-')
+      *p = ' ';
+
+  brush = g_object_new (GIMP_TYPE_MYBRUSH,
+                        "name",        basename,
+                        "mime-type",   "image/x-gimp-myb",
+                        "icon-pixbuf", pixbuf,
+                        NULL);
+
+  g_free (basename);
+
+  if (pixbuf)
+    g_object_unref (pixbuf);
+
+  brush->priv->brush_json = (gchar *) buffer;
+
+  brush->priv->radius =
+    mypaint_brush_get_base_value (mypaint_brush,
+                                  MYPAINT_BRUSH_SETTING_RADIUS_LOGARITHMIC);
+
+  brush->priv->opaque =
+    mypaint_brush_get_base_value (mypaint_brush,
+                                  MYPAINT_BRUSH_SETTING_OPAQUE);
+
+  brush->priv->hardness =
+    mypaint_brush_get_base_value (mypaint_brush,
+                                  MYPAINT_BRUSH_SETTING_HARDNESS);
+
+  brush->priv->eraser =
+    mypaint_brush_get_base_value (mypaint_brush,
+                                  MYPAINT_BRUSH_SETTING_ERASER) > 0.5f;
+
+  brush->priv->offset_by_random =
+    mypaint_brush_get_base_value (mypaint_brush,
+                                  MYPAINT_BRUSH_SETTING_OFFSET_BY_RANDOM);
+
+  mypaint_brush_unref (mypaint_brush);
+
+  return g_list_prepend (NULL, brush);
+}