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-rw-r--r--app/propgui/gimppropgui-recursive-transform.c334
1 files changed, 334 insertions, 0 deletions
diff --git a/app/propgui/gimppropgui-recursive-transform.c b/app/propgui/gimppropgui-recursive-transform.c
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+/* 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 <https://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"
+
+
+#define MAX_N_TRANSFORMS 10
+
+
+static void
+add_transform (GtkButton *button,
+ GObject *config)
+{
+ gchar *transform;
+ gchar *new_transform;
+
+ g_object_get (config,
+ "transform", &transform,
+ NULL);
+
+ new_transform = g_strdup_printf ("%s;matrix (1, 0, 0, 0, 1, 0, 0, 0, 1)",
+ transform);
+
+ g_object_set (config,
+ "transform", new_transform,
+ NULL);
+
+ g_free (transform);
+ g_free (new_transform);
+}
+
+static void
+duplicate_transform (GtkButton *button,
+ GObject *config)
+{
+ gchar *transform;
+ gchar *new_transform;
+ gchar *delim;
+
+ g_object_get (config,
+ "transform", &transform,
+ NULL);
+
+ delim = strrchr (transform, ';');
+
+ if (! delim)
+ delim = transform;
+ else
+ delim++;
+
+ new_transform = g_strdup_printf ("%s;%s", transform, delim);
+
+ g_object_set (config,
+ "transform", new_transform,
+ NULL);
+
+ g_free (transform);
+ g_free (new_transform);
+}
+
+static void
+remove_transform (GtkButton *button,
+ GObject *config)
+{
+ gchar *transform;
+ gchar *delim;
+
+ g_object_get (config,
+ "transform", &transform,
+ NULL);
+
+ delim = strrchr (transform, ';');
+
+ if (delim)
+ {
+ *delim = '\0';
+
+ g_object_set (config,
+ "transform", transform,
+ NULL);
+ }
+
+ g_free (transform);
+}
+
+static void
+transform_grids_callback (GObject *config,
+ GeglRectangle *area,
+ const GimpMatrix3 *transforms,
+ gint n_transforms)
+{
+ GString *transforms_str = g_string_new (NULL);
+ gchar *transform_str;
+ gint i;
+
+ g_object_set_data_full (G_OBJECT (config), "area",
+ g_memdup (area, sizeof (GeglRectangle)),
+ (GDestroyNotify) g_free);
+
+ for (i = 0; i < n_transforms; i++)
+ {
+ if (i > 0)
+ g_string_append (transforms_str, ";");
+
+ transform_str = gegl_matrix3_to_string ((GeglMatrix3 *) &transforms[i]);
+
+ g_string_append (transforms_str, transform_str);
+
+ g_free (transform_str);
+ }
+
+ transform_str = g_string_free (transforms_str, FALSE);
+
+ g_object_set (config,
+ "transform", transform_str,
+ NULL);
+
+ g_free (transform_str);
+}
+
+static void
+config_notify (GObject *config,
+ const GParamSpec *pspec,
+ gpointer set_data)
+{
+ GtkWidget *add_button;
+ GtkWidget *duplicate_button;
+ GtkWidget *remove_button;
+ GimpControllerTransformGridsCallback set_func;
+ GeglRectangle *area;
+ gchar *transform_str;
+ gchar **transform_strs;
+ GimpMatrix3 *transforms;
+ gint n_transforms;
+ gint i;
+
+ add_button = g_object_get_data (G_OBJECT (config), "add-transform-button");
+ duplicate_button = g_object_get_data (G_OBJECT (config), "duplicate-transform-button");
+ remove_button = g_object_get_data (G_OBJECT (config), "remove-transform-button");
+ 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);
+
+ transform_strs = g_strsplit (transform_str, ";", -1);
+
+ g_free (transform_str);
+
+ for (n_transforms = 0; transform_strs[n_transforms]; n_transforms++);
+
+ transforms = g_new (GimpMatrix3, n_transforms);
+
+ for (i = 0; i < n_transforms; i++)
+ {
+ gegl_matrix3_parse_string ((GeglMatrix3 *) &transforms[i],
+ transform_strs[i]);
+ }
+
+ set_func (set_data, area, transforms, n_transforms);
+
+ g_strfreev (transform_strs);
+ g_free (transforms);
+
+ gtk_widget_set_sensitive (add_button, n_transforms < MAX_N_TRANSFORMS);
+ gtk_widget_set_sensitive (duplicate_button, n_transforms < MAX_N_TRANSFORMS);
+ gtk_widget_set_sensitive (remove_button, n_transforms > 1);
+}
+
+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)
+ {
+ GtkWidget *outer_vbox;
+ GtkWidget *hbox;
+ GtkWidget *button;
+ GtkWidget *image;
+ GCallback set_func;
+ gpointer set_data;
+
+ outer_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL,
+ gtk_box_get_spacing (GTK_BOX (vbox)));
+
+ gtk_box_pack_start (GTK_BOX (outer_vbox), vbox, FALSE, FALSE, 0);
+ gtk_widget_show (vbox);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+ gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
+ gtk_box_pack_start (GTK_BOX (outer_vbox), hbox, FALSE, FALSE, 2);
+ gtk_widget_show (hbox);
+
+ button = gtk_button_new ();
+ gimp_help_set_help_data (button,
+ _("Add transform"),
+ NULL);
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+
+ image = gtk_image_new_from_icon_name (GIMP_ICON_LIST_ADD,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (button), image);
+ gtk_widget_show (image);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (add_transform),
+ config);
+
+ g_object_set_data (config, "add-transform-button", button);
+
+ button = gtk_button_new ();
+ gimp_help_set_help_data (button,
+ _("Duplicate transform"),
+ NULL);
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+
+ image = gtk_image_new_from_icon_name (GIMP_ICON_OBJECT_DUPLICATE,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (button), image);
+ gtk_widget_show (image);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (duplicate_transform),
+ config);
+
+ g_object_set_data (config, "duplicate-transform-button", button);
+
+ button = gtk_button_new ();
+ gimp_help_set_help_data (button,
+ _("Remove transform"),
+ NULL);
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+
+ image = gtk_image_new_from_icon_name (GIMP_ICON_LIST_REMOVE,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (button), image);
+ gtk_widget_show (image);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (remove_transform),
+ config);
+
+ g_object_set_data (config, "remove-transform-button", button);
+
+ vbox = outer_vbox;
+
+ set_func = create_controller_func (creator,
+ GIMP_CONTROLLER_TYPE_TRANSFORM_GRIDS,
+ _("Recursive Transform: "),
+ (GCallback) transform_grids_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;
+}
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