app: add gegl:newsprint to Filters -> Distorts

and add a custom GUI constructor that does nothing special (yet).

app/actions/filters-actions.c

@@ -479,6 +479,11 @@ static const GimpStringActionEntry filters_interactive_actions[] =
     "gegl:cell-noise",
     GIMP_HELP_FILTER_NOISE_CELL },
 
+  { "filters-newsprint", GIMP_ICON_GEGL,
+    NC_("filters-action", "_Newsprint..."), NULL, NULL,
+    "gegl:newsprint",
+    GIMP_HELP_FILTER_NEWSPRINT },
+
   { "filters-noise-cie-lch", GIMP_ICON_GEGL,
     NC_("filters-action", "CIE lch Noise..."), NULL, NULL,
     "gegl:noise-cie-lch",

app/propgui/Makefile.am

@@ -43,6 +43,8 @@ libapppropgui_a_SOURCES = \
 	gimppropgui-motion-blur-linear.h	\
 	gimppropgui-motion-blur-zoom.c		\
 	gimppropgui-motion-blur-zoom.h		\
+	gimppropgui-newsprint.c			\
+	gimppropgui-newsprint.h			\
 	gimppropgui-panorama-projection.c	\
 	gimppropgui-panorama-projection.h	\
 	gimppropgui-recursive-transform.c	\

app/propgui/gimppropgui-newsprint.c

@@ -0,0 +1,62 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimppropgui-newsprint.c
+ * Copyright (C) 2019  Michael Natterer <mitch@gimp.org>
+ *
+ * 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "propgui-types.h"
+
+#include "core/gimpcontext.h"
+
+#include "gimppropgui.h"
+#include "gimppropgui-generic.h"
+#include "gimppropgui-newsprint.h"
+
+#include "gimp-intl.h"
+
+
+GtkWidget *
+_gimp_prop_gui_new_newsprint (GObject                  *config,
+                              GParamSpec              **param_specs,
+                              guint                     n_param_specs,
+                              GeglRectangle            *area,
+                              GimpContext              *context,
+                              GimpCreatePickerFunc      create_picker_func,
+                              GimpCreateControllerFunc  create_controller_func,
+                              gpointer                  creator)
+{
+  g_return_val_if_fail (G_IS_OBJECT (config), NULL);
+  g_return_val_if_fail (param_specs != NULL, NULL);
+  g_return_val_if_fail (n_param_specs > 0, NULL);
+  g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
+
+  return _gimp_prop_gui_new_generic (config,
+                                     param_specs,
+                                     n_param_specs,
+                                     area,
+                                     context,
+                                     create_picker_func,
+                                     create_controller_func,
+                                     creator);
+}

app/propgui/gimppropgui-newsprint.h

@@ -0,0 +1,35 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimppropgui-newsprint.h
+ *
+ * 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/>.
+ */
+
+#ifndef __GIMP_PROP_GUI_NEWSPRINT_H__
+#define __GIMP_PROP_GUI_NEWSPRINT_H__
+
+
+GtkWidget *
+_gimp_prop_gui_new_newsprint (GObject                  *config,
+                              GParamSpec              **param_specs,
+                              guint                     n_param_specs,
+                              GeglRectangle            *area,
+                              GimpContext              *context,
+                              GimpCreatePickerFunc      create_picker_func,
+                              GimpCreateControllerFunc  create_controller_func,
+                              gpointer                  creator);
+
+
+#endif /* __GIMP_PROP_GUI_NEWSPRINT_H__ */

app/propgui/gimppropgui.c

@@ -57,6 +57,7 @@
 #include "gimppropgui-motion-blur-circular.h"
 #include "gimppropgui-motion-blur-linear.h"
 #include "gimppropgui-motion-blur-zoom.h"
+#include "gimppropgui-newsprint.h"
 #include "gimppropgui-panorama-projection.h"
 #include "gimppropgui-recursive-transform.h"
 #include "gimppropgui-shadows-highlights.h"
@@ -472,6 +473,8 @@ gui_new_funcs[] =
     _gimp_prop_gui_new_motion_blur_linear },
   { "GimpGegl-gegl-motion-blur-zoom-config",
     _gimp_prop_gui_new_motion_blur_zoom },
+  { "GimpGegl-gegl-newsprint-config",
+    _gimp_prop_gui_new_newsprint },
   { "GimpGegl-gegl-panorama-projection-config",
     _gimp_prop_gui_new_panorama_projection },
   { "GimpGegl-gegl-recursive-transform-config",

app/sanity.c

@@ -663,9 +663,11 @@ sanity_check_gegl_ops (void)
     "gegl:median-blur",
     "gegl:mirrors",
     "gegl:mono-mixer",
+    "gegl:mosaic",
     "gegl:motion-blur-circular",
     "gegl:motion-blur-linear",
     "gegl:motion-blur-zoom",
+    "gegl:newsprint",
     "gegl:noise-cie-lch",
     "gegl:noise-hsv",
     "gegl:noise-hurl",

app/tools/gimpgegltool.c

@@ -203,6 +203,7 @@ gimp_gegl_tool_operation_blacklisted (const gchar *name,
     "gegl:motion-blur-circular",
     "gegl:motion-blur-linear",
     "gegl:motion-blur-zoom",
+    "gegl:newsprint",
     "gegl:noise-cie-lch",
     "gegl:noise-hsv",
     "gegl:noise-hurl",

app/widgets/gimphelp-ids.h

@@ -402,6 +402,7 @@
 #define GIMP_HELP_FILTER_MOTION_BLUR_CIRCULAR     "gimp-filter-motion-blur-circular"
 #define GIMP_HELP_FILTER_MOTION_BLUR_LINEAR       "gimp-filter-motion-blur-linear"
 #define GIMP_HELP_FILTER_MOTION_BLUR_ZOOM         "gimp-filter-motion-blur-zoom"
+#define GIMP_HELP_FILTER_NEWSPRINT                "gimp-filter-newsprint"
 #define GIMP_HELP_FILTER_NOISE_CELL               "gimp-filter-noise-cell"
 #define GIMP_HELP_FILTER_NOISE_CIE_LCH            "gimp-filter-noise-cie-lch"
 #define GIMP_HELP_FILTER_NOISE_HSV                "gimp-filter-noise-hsv"

menus/image-menu.xml.in

@@ -720,6 +720,7 @@
         <menuitem action="filters-lens-distortion" />
         <menuitem action="filters-kaleidoscope" />
         <menuitem action="filters-mosaic" />
+        <menuitem action="filters-newsprint" />
       	<menuitem action="filters-polar-coordinates" />
         <menuitem action="filters-ripple" />
         <menuitem action="filters-shift" />

po/POTFILES.in

@@ -395,6 +395,7 @@ app/propgui/gimppropgui-hue-saturation.c
 app/propgui/gimppropgui-motion-blur-circular.c
 app/propgui/gimppropgui-motion-blur-linear.c
 app/propgui/gimppropgui-motion-blur-zoom.c
+app/propgui/gimppropgui-newsprint.c
 app/propgui/gimppropgui-panorama-projection.c
 app/propgui/gimppropgui-recursive-transform.c
 app/propgui/gimppropgui-shadows-highlights.c