1 files changed, 95 insertions, 0 deletions
diff --git a/app/widgets/gimprender.c b/app/widgets/gimprender.c
new file mode 100644
index 0000000..549ed02
--- /dev/null
+++ b/app/widgets/gimprender.c
@@ -0,0 +1,95 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpcolor/gimpcolor.h"
+
+#include "widgets-types.h"
+
+#include "core/gimp.h"
+
+#include "gimprender.h"
+
+
+static void   gimp_render_setup_notify (gpointer    config,
+                                        GParamSpec *param_spec,
+                                        Gimp       *gimp);
+
+
+static GimpRGB light;
+static GimpRGB dark;
+
+
+void
+gimp_render_init (Gimp *gimp)
+{
+  g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+  g_signal_connect (gimp->config, "notify::transparency-type",
+                    G_CALLBACK (gimp_render_setup_notify),
+                    gimp);
+
+  gimp_render_setup_notify (gimp->config, NULL, gimp);
+}
+
+void
+gimp_render_exit (Gimp *gimp)
+{
+  g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+  g_signal_handlers_disconnect_by_func (gimp->config,
+                                        gimp_render_setup_notify,
+                                        gimp);
+}
+
+const GimpRGB *
+gimp_render_light_check_color (void)
+{
+  return &light;
+}
+
+const GimpRGB *
+gimp_render_dark_check_color (void)
+{
+  return &dark;
+}
+
+static void
+gimp_render_setup_notify (gpointer    config,
+                          GParamSpec *param_spec,
+                          Gimp       *gimp)
+{
+  GimpCheckType check_type;
+  guchar        dark_check;
+  guchar        light_check;
+
+  g_object_get (config,
+                "transparency-type", &check_type,
+                NULL);
+
+  gimp_checks_get_shades (check_type, &light_check, &dark_check);
+
+  gimp_rgba_set_uchar (&light, light_check, light_check, light_check, 255);
+  gimp_rgba_set_uchar (&dark,  dark_check,  dark_check,  dark_check,  255);
+}