diff options
Diffstat (limited to 'app/core/gimpbrushpipe-load.c')
| -rw-r--r-- | app/core/gimpbrushpipe-load.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/app/core/gimpbrushpipe-load.c b/app/core/gimpbrushpipe-load.c new file mode 100644 index 0000000..18ad898 --- /dev/null +++ b/app/core/gimpbrushpipe-load.c @@ -0,0 +1,163 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * Copyright (C) 1999 Adrian Likins and Tor Lillqvist + * + * 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 <stdlib.h> + +#include <gdk-pixbuf/gdk-pixbuf.h> + +#include "libgimpbase/gimpbase.h" + +#include "core-types.h" + +#include "gimpbrush-load.h" +#include "gimpbrush-private.h" +#include "gimpbrushpipe.h" +#include "gimpbrushpipe-load.h" + +#include "gimp-intl.h" + + +GList * +gimp_brush_pipe_load (GimpContext *context, + GFile *file, + GInputStream *input, + GError **error) +{ + GimpBrushPipe *pipe = NULL; + gint n_brushes = 0; + GString *buffer; + gchar *paramstring; + gchar c; + gsize bytes_read; + + g_return_val_if_fail (G_IS_FILE (file), NULL); + g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL); + g_return_val_if_fail (error == NULL || *error == NULL, NULL); + + /* The file format starts with a painfully simple text header */ + + /* get the name */ + buffer = g_string_new (NULL); + while (g_input_stream_read_all (input, &c, 1, &bytes_read, NULL, NULL) && + bytes_read == 1 && + c != '\n' && + buffer->len < 1024) + { + g_string_append_c (buffer, c); + } + + if (buffer->len > 0 && buffer->len < 1024) + { + gchar *utf8 = + gimp_any_to_utf8 (buffer->str, buffer->len, + _("Invalid UTF-8 string in brush file '%s'."), + gimp_file_get_utf8_name (file)); + + pipe = g_object_new (GIMP_TYPE_BRUSH_PIPE, + "name", utf8, + "mime-type", "image/x-gimp-gih", + NULL); + + g_free (utf8); + } + + g_string_free (buffer, TRUE); + + if (! pipe) + { + g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ, + _("Fatal parse error in brush file '%s': " + "File is corrupt."), + gimp_file_get_utf8_name (file)); + return NULL; + } + + /* get the number of brushes */ + buffer = g_string_new (NULL); + while (g_input_stream_read_all (input, &c, 1, &bytes_read, NULL, NULL) && + bytes_read == 1 && + c != '\n' && + buffer->len < 1024) + { + g_string_append_c (buffer, c); + } + + if (buffer->len > 0 && buffer->len < 1024) + { + n_brushes = strtol (buffer->str, ¶mstring, 10); + } + + if (n_brushes < 1) + { + g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ, + _("Fatal parse error in brush file '%s': " + "File is corrupt."), + gimp_file_get_utf8_name (file)); + g_object_unref (pipe); + g_string_free (buffer, TRUE); + return NULL; + } + + while (*paramstring && g_ascii_isspace (*paramstring)) + paramstring++; + + pipe->brushes = g_new0 (GimpBrush *, n_brushes); + + while (pipe->n_brushes < n_brushes) + { + pipe->brushes[pipe->n_brushes] = gimp_brush_load_brush (context, + file, input, + error); + + if (! pipe->brushes[pipe->n_brushes]) + { + g_object_unref (pipe); + g_string_free (buffer, TRUE); + return NULL; + } + + pipe->n_brushes++; + } + + if (! gimp_brush_pipe_set_params (pipe, paramstring)) + { + g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ, + _("Fatal parse error in brush file '%s': " + "Inconsistent parameters."), + gimp_file_get_utf8_name (file)); + g_object_unref (pipe); + g_string_free (buffer, TRUE); + return NULL; + } + + g_string_free (buffer, TRUE); + + /* Current brush is the first one. */ + pipe->current = pipe->brushes[0]; + + /* just to satisfy the code that relies on this crap */ + GIMP_BRUSH (pipe)->priv->spacing = pipe->current->priv->spacing; + GIMP_BRUSH (pipe)->priv->x_axis = pipe->current->priv->x_axis; + GIMP_BRUSH (pipe)->priv->y_axis = pipe->current->priv->y_axis; + GIMP_BRUSH (pipe)->priv->mask = pipe->current->priv->mask; + GIMP_BRUSH (pipe)->priv->pixmap = pipe->current->priv->pixmap; + + return g_list_prepend (NULL, pipe); +} |