[gimp] app: add custom GUI for gegl:recursive-transform

[N/A <ell src gnome org>]

commit 8039582df071fe0b17da99e8ba37afc3ea3819c6
Author: Ell <ell_se yahoo com>
Date:   Thu Mar 1 02:24:58 2018 -0500

    app: add custom GUI for gegl:recursive-transform
    
    gegl:recursive-transform applies a transformation recursively to
    an image.  The custom GUI allows controlling the transformation
    matrix using a transform-grid controller, added in the previous
    commit.

 app/propgui/Makefile.am                       |    2 +
 app/propgui/gimppropgui-recursive-transform.c |  144 +++++++++++++++++++++++++
 app/propgui/gimppropgui-recursive-transform.h |   35 ++++++
 app/propgui/gimppropgui.c                     |    3 +
 po/POTFILES.in                                |    1 +
 5 files changed, 185 insertions(+), 0 deletions(-)
---
diff --git a/app/propgui/Makefile.am b/app/propgui/Makefile.am
index 6fca8bd..ebfbeed 100644
--- a/app/propgui/Makefile.am
+++ b/app/propgui/Makefile.am
@@ -37,6 +37,8 @@ libapppropgui_a_SOURCES = \
        gimppropgui-generic.h                   \
        gimppropgui-hue-saturation.c            \
        gimppropgui-hue-saturation.h            \
+       gimppropgui-recursive-transform.c       \
+       gimppropgui-recursive-transform.h       \
        gimppropgui-shadows-highlights.c        \
        gimppropgui-shadows-highlights.h        \
        gimppropgui-spiral.c                    \
diff --git a/app/propgui/gimppropgui-recursive-transform.c b/app/propgui/gimppropgui-recursive-transform.c
new file mode 100644
index 0000000..aa31b14
--- /dev/null
+++ b/app/propgui/gimppropgui-recursive-transform.c
@@ -0,0 +1,144 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimppropgui-recursive-transform.c
+ * Copyright (C) 2018 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "propgui-types.h"
+
+#include "core/gimpcontext.h"
+
+#include "gimppropgui.h"
+#include "gimppropgui-generic.h"
+#include "gimppropgui-recursive-transform.h"
+
+#include "gimp-intl.h"
+
+
+static void
+transform_grid_callback (GObject                    *config,
+                         GeglRectangle              *area,
+                         const GimpMatrix3          *transform)
+{
+  gchar *transform_str;
+
+  g_object_set_data_full (G_OBJECT (config), "area",
+                          g_memdup (area, sizeof (GeglRectangle)),
+                          (GDestroyNotify) g_free);
+
+  transform_str = gegl_matrix3_to_string ((GeglMatrix3 *) transform);
+
+  g_object_set (config,
+                "transform", transform_str,
+                NULL);
+
+  g_free (transform_str);
+}
+
+static void
+config_notify (GObject          *config,
+               const GParamSpec *pspec,
+               gpointer          set_data)
+{
+  GimpControllerTransformGridCallback  set_func;
+  GeglRectangle                       *area;
+  gchar                               *transform_str;
+  GimpMatrix3                          transform;
+
+  set_func = g_object_get_data (G_OBJECT (config), "set-func");
+  area     = g_object_get_data (G_OBJECT (config), "area");
+
+  g_object_get (config,
+                "transform", &transform_str,
+                NULL);
+
+  gegl_matrix3_parse_string ((GeglMatrix3 *) &transform, transform_str);
+
+  set_func (set_data, area, &transform);
+
+  g_free (transform_str);
+}
+
+GtkWidget *
+_gimp_prop_gui_new_recursive_transform (GObject                  *config,
+                                        GParamSpec              **param_specs,
+                                        guint                     n_param_specs,
+                                        GeglRectangle            *area,
+                                        GimpContext              *context,
+                                        GimpCreatePickerFunc      create_picker_func,
+                                        GimpCreateControllerFunc  create_controller_func,
+                                        gpointer                  creator)
+{
+  GtkWidget *vbox;
+
+  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);
+
+  /* skip the "transform" property, which is controlled by a transform-grid
+   * controller.
+   */
+  if (create_controller_func)
+    {
+      param_specs++;
+      n_param_specs--;
+    }
+
+  vbox = _gimp_prop_gui_new_generic (config,
+                                     param_specs, n_param_specs,
+                                     area, context,
+                                     create_picker_func,
+                                     create_controller_func,
+                                     creator);
+
+
+  if (create_controller_func)
+    {
+      GCallback set_func;
+      gpointer  set_data;
+
+      set_func = create_controller_func (creator,
+                                         GIMP_CONTROLLER_TYPE_TRANSFORM_GRID,
+                                         _("Recursive Transform: "),
+                                         (GCallback) transform_grid_callback,
+                                         config,
+                                         &set_data);
+
+      g_object_set_data (G_OBJECT (config), "set-func", set_func);
+
+      g_object_set_data_full (G_OBJECT (config), "area",
+                              g_memdup (area, sizeof (GeglRectangle)),
+                              (GDestroyNotify) g_free);
+
+      config_notify (config, NULL, set_data);
+
+      g_signal_connect (config, "notify",
+                        G_CALLBACK (config_notify),
+                        set_data);
+    }
+
+  return vbox;
+}
diff --git a/app/propgui/gimppropgui-recursive-transform.h b/app/propgui/gimppropgui-recursive-transform.h
new file mode 100644
index 0000000..ead6014
--- /dev/null
+++ b/app/propgui/gimppropgui-recursive-transform.h
@@ -0,0 +1,35 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimppropgui-recursive-transform.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 <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_PROP_GUI_RECURSIVE_TRANSFORM_H__
+#define __GIMP_PROP_GUI_RECURSIVE_TRANSFORM_H__
+
+
+GtkWidget *
+_gimp_prop_gui_new_recursive_transform (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_RECURSIVE_TRANSFORM_H__ */
diff --git a/app/propgui/gimppropgui.c b/app/propgui/gimppropgui.c
index 111e56f..e10102d 100644
--- a/app/propgui/gimppropgui.c
+++ b/app/propgui/gimppropgui.c
@@ -54,6 +54,7 @@
 #include "gimppropgui-eval.h"
 #include "gimppropgui-generic.h"
 #include "gimppropgui-hue-saturation.h"
+#include "gimppropgui-recursive-transform.h"
 #include "gimppropgui-shadows-highlights.h"
 #include "gimppropgui-spiral.h"
 #include "gimppropgui-supernova.h"
@@ -450,6 +451,8 @@ gui_new_funcs[] =
     _gimp_prop_gui_new_channel_mixer },
   { "GimpGegl-gegl-diffraction-patterns-config",
     _gimp_prop_gui_new_diffraction_patterns },
+  { "GimpGegl-gegl-recursive-transform-config",
+    _gimp_prop_gui_new_recursive_transform },
   { "GimpGegl-gegl-shadows-highlights-config",
     _gimp_prop_gui_new_shadows_highlights },
   { "GimpGegl-gegl-spiral-config",
diff --git a/po/POTFILES.in b/po/POTFILES.in
index ef8683b..9099597 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -383,6 +383,7 @@ app/propgui/gimppropgui-convolution-matrix.c
 app/propgui/gimppropgui-diffraction-patterns.c
 app/propgui/gimppropgui-generic.c
 app/propgui/gimppropgui-hue-saturation.c
+app/propgui/gimppropgui-recursive-transform.c
 app/propgui/gimppropgui-shadows-highlights.c
 app/propgui/gimppropgui-spiral.c
 app/propgui/gimppropgui-supernova.c