mirror of https://github.com/GNOME/gimp.git
152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimppropgui-motion-blur-circular.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 "libgimpmath/gimpmath.h"
|
|
#include "libgimpwidgets/gimpwidgets.h"
|
|
|
|
#include "propgui-types.h"
|
|
|
|
#include "core/gimpcontext.h"
|
|
|
|
#include "gimppropgui-generic.h"
|
|
#include "gimppropgui-motion-blur-circular.h"
|
|
|
|
#include "gimp-intl.h"
|
|
|
|
|
|
static void
|
|
line_callback (GObject *config,
|
|
GeglRectangle *area,
|
|
gdouble x1,
|
|
gdouble y1,
|
|
gdouble x2,
|
|
gdouble y2)
|
|
{
|
|
gdouble x, y;
|
|
gdouble angle;
|
|
|
|
g_object_set_data_full (G_OBJECT (config), "area",
|
|
g_memdup2 (area, sizeof (GeglRectangle)),
|
|
(GDestroyNotify) g_free);
|
|
|
|
x = x1 / area->width;
|
|
y = y1 / area->height;
|
|
angle = atan2 (-(y2 - y1), x2 - x1);
|
|
|
|
angle = angle * 180.0 / G_PI;
|
|
|
|
if (angle < 0)
|
|
angle += 360.0;
|
|
|
|
g_object_set (config,
|
|
"center-x", x,
|
|
"center-y", y,
|
|
"angle", angle,
|
|
NULL);
|
|
}
|
|
|
|
static void
|
|
config_notify (GObject *config,
|
|
const GParamSpec *pspec,
|
|
gpointer set_data)
|
|
{
|
|
GimpControllerLineCallback set_func;
|
|
GeglRectangle *area;
|
|
gdouble x, y;
|
|
gdouble angle;
|
|
gdouble x1, y1, x2, y2;
|
|
|
|
set_func = g_object_get_data (G_OBJECT (config), "set-func");
|
|
area = g_object_get_data (G_OBJECT (config), "area");
|
|
|
|
g_object_get (config,
|
|
"center-x", &x,
|
|
"center-y", &y,
|
|
"angle", &angle,
|
|
NULL);
|
|
|
|
angle = angle / 180.0 * G_PI;
|
|
|
|
x1 = x * area->width;
|
|
y1 = y * area->height;
|
|
x2 = x1 + cos (angle) * 100;
|
|
y2 = y1 - sin (angle) * 100;
|
|
|
|
set_func (set_data, area, x1, y1, x2, y2);
|
|
}
|
|
|
|
GtkWidget *
|
|
_gimp_prop_gui_new_motion_blur_circular (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);
|
|
|
|
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_LINE,
|
|
_("Circular Motion Blur: "),
|
|
(GCallback) line_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;
|
|
}
|