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PIKApp/app/propgui/pikapropgui-recursive-trans...

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* pikapropgui-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 "libpikamath/pikamath.h"
#include "libpikawidgets/pikawidgets.h"
#include "propgui-types.h"
#include "core/pikacontext.h"
#include "pikapropgui.h"
#include "pikapropgui-generic.h"
#include "pikapropgui-recursive-transform.h"
#include "pika-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 PikaMatrix3 *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_memdup2 (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;
PikaControllerTransformGridsCallback set_func;
GeglRectangle *area;
gchar *transform_str;
gchar **transform_strs;
PikaMatrix3 *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 (PikaMatrix3, 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 *
_pika_prop_gui_new_recursive_transform (GObject *config,
GParamSpec **param_specs,
guint n_param_specs,
GeglRectangle *area,
PikaContext *context,
PikaCreatePickerFunc create_picker_func,
PikaCreateControllerFunc 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 (PIKA_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 = _pika_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 ();
pika_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 (PIKA_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 ();
pika_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 (PIKA_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 ();
pika_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 (PIKA_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,
PIKA_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_memdup2 (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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