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Diffstat (limited to 'app/file-data/file-data-pat.c')
-rw-r--r-- | app/file-data/file-data-pat.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/app/file-data/file-data-pat.c b/app/file-data/file-data-pat.c new file mode 100644 index 0000000..21506fe --- /dev/null +++ b/app/file-data/file-data-pat.c @@ -0,0 +1,263 @@ +/* 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 "core/core-types.h" + +#include "gegl/gimp-babl.h" + +#include "core/gimp.h" +#include "core/gimpdrawable.h" +#include "core/gimpimage.h" +#include "core/gimplayer-new.h" +#include "core/gimpparamspecs.h" +#include "core/gimppattern.h" +#include "core/gimppattern-load.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, + GimpDrawable *drawable, + 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; + const gchar *uri; + GFile *file; + GInputStream *input; + GError *my_error = NULL; + + gimp_set_busy (gimp); + + uri = g_value_get_string (gimp_value_array_index (args, 1)); + file = g_file_new_for_uri (uri); + + 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)); + } + + g_object_unref (file); + + return_vals = gimp_procedure_get_return_values (procedure, image != NULL, + error ? *error : NULL); + + if (image) + gimp_value_set_image (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; + GimpDrawable *drawable; + GimpPattern *pattern; + const gchar *uri; + const gchar *name; + GFile *file; + gboolean success; + + gimp_set_busy (gimp); + + image = gimp_value_get_image (gimp_value_array_index (args, 1), gimp); + drawable = gimp_value_get_drawable (gimp_value_array_index (args, 2), gimp); + uri = g_value_get_string (gimp_value_array_index (args, 3)); + name = g_value_get_string (gimp_value_array_index (args, 5)); + + file = g_file_new_for_uri (uri); + + pattern = file_pat_image_to_pattern (image, drawable, name); + + gimp_data_set_file (GIMP_DATA (pattern), file, TRUE, TRUE); + + success = gimp_data_save (GIMP_DATA (pattern), error); + + g_object_unref (pattern); + g_object_unref (file); + + 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; + const gchar *name; + GimpImageBaseType base_type; + gboolean alpha; + gint width; + gint height; + GimpTempBuf *mask = gimp_pattern_get_mask (pattern); + GeglBuffer *buffer; + 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); + } + + name = gimp_object_get_name (pattern); + 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_GAMMA); + + parasite = gimp_parasite_new ("gimp-pattern-name", + GIMP_PARASITE_PERSISTENT, + strlen (name) + 1, name); + gimp_image_parasite_attach (image, parasite, FALSE); + gimp_parasite_free (parasite); + + format = gimp_image_get_layer_format (image, alpha); + + layer = gimp_layer_new (image, width, height, format, name, + 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, + GimpDrawable *drawable, + const gchar *name) +{ + GimpPattern *pattern; + const Babl *format; + gint width; + gint height; + + format = gimp_babl_format (gimp_drawable_is_gray (drawable) ? + GIMP_GRAY : GIMP_RGB, + GIMP_PRECISION_U8_GAMMA, + gimp_drawable_has_alpha (drawable)); + + width = gimp_item_get_width (GIMP_ITEM (drawable)); + height = gimp_item_get_height (GIMP_ITEM (drawable)); + + 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 (gimp_drawable_get_buffer (drawable), + GEGL_RECTANGLE (0, 0, width, height), 1.0, + format, gimp_temp_buf_get_data (pattern->mask), + GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); + + return pattern; +} |