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gimp/app/file-data/file-data-pat.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "core/core-types.h"
#include "gegl/gimp-babl.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimpimage-new.h"
#include "core/gimpimage-resize.h"
#include "core/gimplayer-new.h"
#include "core/gimpparamspecs.h"
#include "core/gimppattern.h"
#include "core/gimppattern-load.h"
#include "core/gimppickable.h"
#include "core/gimptempbuf.h"
#include "pdb/gimpprocedure.h"
#include "file-data-pat.h"
#include "gimp-intl.h"
/* local function prototypes */
static GimpImage * file_pat_pattern_to_image (Gimp *gimp,
GimpPattern *pattern);
static GimpPattern * file_pat_image_to_pattern (GimpImage *image,
GimpContext *context,
gint n_drawables,
GimpDrawable **drawables,
const gchar *name);
/* public functions */
GimpValueArray *
file_pat_load_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
GimpValueArray *return_vals;
GimpImage *image = NULL;
GFile *file;
GInputStream *input;
GError *my_error = NULL;
gimp_set_busy (gimp);
file = g_value_get_object (gimp_value_array_index (args, 1));
input = G_INPUT_STREAM (g_file_read (file, NULL, &my_error));
if (input)
{
GList *list = gimp_pattern_load (context, file, input, error);
if (list)
{
GimpPattern *pattern = list->data;
g_list_free (list);
image = file_pat_pattern_to_image (gimp, pattern);
g_object_unref (pattern);
}
g_object_unref (input);
}
else
{
g_propagate_prefixed_error (error, my_error,
_("Could not open '%s' for reading: "),
gimp_file_get_utf8_name (file));
}
return_vals = gimp_procedure_get_return_values (procedure, image != NULL,
error ? *error : NULL);
if (image)
g_value_set_object (gimp_value_array_index (return_vals, 1), image);
gimp_unset_busy (gimp);
return return_vals;
}
GimpValueArray *
file_pat_save_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
GimpValueArray *return_vals;
GimpImage *image;
GimpPattern *pattern;
const gchar *name;
GFile *file;
GimpDrawable **drawables;
gint n_drawables;
gboolean success;
gimp_set_busy (gimp);
image = g_value_get_object (gimp_value_array_index (args, 1));
n_drawables = g_value_get_int (gimp_value_array_index (args, 2));
drawables = (GimpDrawable **) gimp_value_get_object_array (gimp_value_array_index (args, 3));
file = g_value_get_object (gimp_value_array_index (args, 4));
name = g_value_get_string (gimp_value_array_index (args, 5));
pattern = file_pat_image_to_pattern (image, context, n_drawables, drawables, name);
gimp_data_set_file (GIMP_DATA (pattern), file, TRUE, TRUE);
success = gimp_data_save (GIMP_DATA (pattern), error);
g_object_unref (pattern);
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
gimp_unset_busy (gimp);
return return_vals;
}
/* private functions */
static GimpImage *
file_pat_pattern_to_image (Gimp *gimp,
GimpPattern *pattern)
{
GimpImage *image;
GimpLayer *layer;
const Babl *format;
GimpImageBaseType base_type;
gboolean alpha;
gint width;
gint height;
GimpTempBuf *mask = gimp_pattern_get_mask (pattern);
GeglBuffer *buffer;
GString *string;
GimpConfigWriter *writer;
GimpParasite *parasite;
format = gimp_temp_buf_get_format (mask);
switch (babl_format_get_bytes_per_pixel (format))
{
case 1:
base_type = GIMP_GRAY;
alpha = FALSE;
break;
case 2:
base_type = GIMP_GRAY;
alpha = TRUE;
break;
case 3:
base_type = GIMP_RGB;
alpha = FALSE;
break;
case 4:
base_type = GIMP_RGB;
alpha = TRUE;
break;
default:
g_return_val_if_reached (NULL);
}
width = gimp_temp_buf_get_width (mask);
height = gimp_temp_buf_get_height (mask);
image = gimp_image_new (gimp, width, height, base_type,
GIMP_PRECISION_U8_NON_LINEAR);
string = g_string_new (NULL);
writer = gimp_config_writer_new_from_string (string);
gimp_config_writer_open (writer, "description");
gimp_config_writer_string (writer, gimp_object_get_name (pattern));
gimp_config_writer_close (writer);
gimp_config_writer_finish (writer, NULL, NULL);
parasite = gimp_parasite_new ("GimpProcedureConfig-file-pat-save-last",
GIMP_PARASITE_PERSISTENT,
string->len + 1, string->str);
gimp_image_parasite_attach (image, parasite, FALSE);
gimp_parasite_free (parasite);
g_string_free (string, TRUE);
format = gimp_image_get_layer_format (image, alpha);
layer = gimp_layer_new (image, width, height, format,
gimp_object_get_name (pattern),
1.0, GIMP_LAYER_MODE_NORMAL);
gimp_image_add_layer (image, layer, NULL, 0, FALSE);
buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (layer));
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, 0, width, height), 0,
NULL,
gimp_temp_buf_get_data (mask), GEGL_AUTO_ROWSTRIDE);
return image;
}
static GimpPattern *
file_pat_image_to_pattern (GimpImage *image,
GimpContext *context,
gint n_drawables,
GimpDrawable **drawables,
const gchar *name)
{
GimpPattern *pattern;
GimpImage *subimage = NULL;
const Babl *format;
gint width;
gint height;
g_return_val_if_fail (n_drawables > 0, NULL);
if (n_drawables > 1)
{
GList *drawable_list = NULL;
for (gint i = 0; i < n_drawables; i++)
drawable_list = g_list_prepend (drawable_list, drawables[i]);
subimage = gimp_image_new_from_drawables (image->gimp, drawable_list, FALSE, FALSE);
g_list_free (drawable_list);
gimp_container_remove (image->gimp->images, GIMP_OBJECT (subimage));
gimp_image_resize_to_layers (subimage, context,
NULL, NULL, NULL, NULL, NULL);
width = gimp_image_get_width (subimage);
height = gimp_image_get_width (subimage);
gimp_pickable_flush (GIMP_PICKABLE (subimage));
}
else
{
width = gimp_item_get_width (GIMP_ITEM (drawables[0]));
height = gimp_item_get_height (GIMP_ITEM (drawables[0]));
}
format = gimp_babl_format (gimp_drawable_is_gray (drawables[0]) ?
GIMP_GRAY : GIMP_RGB,
GIMP_PRECISION_U8_NON_LINEAR,
(subimage && gimp_image_has_alpha (subimage)) ||
gimp_drawable_has_alpha (drawables[0]),
NULL);
pattern = g_object_new (GIMP_TYPE_PATTERN,
"name", name,
"mime-type", "image/x-gimp-pat",
NULL);
pattern->mask = gimp_temp_buf_new (width, height, format);
gegl_buffer_get (subimage != NULL ? gimp_pickable_get_buffer (GIMP_PICKABLE (subimage)) :
gimp_drawable_get_buffer (drawables[0]),
GEGL_RECTANGLE (0, 0, width, height), 1.0,
format, gimp_temp_buf_get_data (pattern->mask),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
g_clear_object (&subimage);
return pattern;
}
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