diff options
Diffstat (limited to 'app/core/gimp-units.c')
| -rw-r--r-- | app/core/gimp-units.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/app/core/gimp-units.c b/app/core/gimp-units.c new file mode 100644 index 0000000..22caca1 --- /dev/null +++ b/app/core/gimp-units.c @@ -0,0 +1,488 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis + * + * gimpunit.c + * Copyright (C) 1999-2000 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/>. + */ + +/* This file contains functions to load & save the file containing the + * user-defined size units, when the application starts/finished. + */ + +#include "config.h" + +#include <gio/gio.h> + +#include "libgimpbase/gimpbase.h" +#include "libgimpbase/gimpbase-private.h" +#include "libgimpconfig/gimpconfig.h" + +#include "core-types.h" + +#include "gimp.h" +#include "gimp-units.h" +#include "gimpunit.h" + +#include "config/gimpconfig-file.h" + +#include "gimp-intl.h" + + +/* + * All deserialize functions return G_TOKEN_LEFT_PAREN on success, + * or the GTokenType they would have expected but didn't get. + */ + +static GTokenType gimp_unitrc_unit_info_deserialize (GScanner *scanner, + Gimp *gimp); + + +static Gimp *the_unit_gimp = NULL; + + +static gint +gimp_units_get_number_of_units (void) +{ + return _gimp_unit_get_number_of_units (the_unit_gimp); +} + +static gint +gimp_units_get_number_of_built_in_units (void) +{ + return GIMP_UNIT_END; +} + +static GimpUnit +gimp_units_unit_new (gchar *identifier, + gdouble factor, + gint digits, + gchar *symbol, + gchar *abbreviation, + gchar *singular, + gchar *plural) +{ + return _gimp_unit_new (the_unit_gimp, + identifier, + factor, + digits, + symbol, + abbreviation, + singular, + plural); +} + +static gboolean +gimp_units_unit_get_deletion_flag (GimpUnit unit) +{ + return _gimp_unit_get_deletion_flag (the_unit_gimp, unit); +} + +static void +gimp_units_unit_set_deletion_flag (GimpUnit unit, + gboolean deletion_flag) +{ + _gimp_unit_set_deletion_flag (the_unit_gimp, unit, deletion_flag); +} + +static gdouble +gimp_units_unit_get_factor (GimpUnit unit) +{ + return _gimp_unit_get_factor (the_unit_gimp, unit); +} + +static gint +gimp_units_unit_get_digits (GimpUnit unit) +{ + return _gimp_unit_get_digits (the_unit_gimp, unit); +} + +static const gchar * +gimp_units_unit_get_identifier (GimpUnit unit) +{ + return _gimp_unit_get_identifier (the_unit_gimp, unit); +} + +static const gchar * +gimp_units_unit_get_symbol (GimpUnit unit) +{ + return _gimp_unit_get_symbol (the_unit_gimp, unit); +} + +static const gchar * +gimp_units_unit_get_abbreviation (GimpUnit unit) +{ + return _gimp_unit_get_abbreviation (the_unit_gimp, unit); +} + +static const gchar * +gimp_units_unit_get_singular (GimpUnit unit) +{ + return _gimp_unit_get_singular (the_unit_gimp, unit); +} + +static const gchar * +gimp_units_unit_get_plural (GimpUnit unit) +{ + return _gimp_unit_get_plural (the_unit_gimp, unit); +} + +void +gimp_units_init (Gimp *gimp) +{ + GimpUnitVtable vtable; + + g_return_if_fail (GIMP_IS_GIMP (gimp)); + g_return_if_fail (the_unit_gimp == NULL); + + the_unit_gimp = gimp; + + vtable.unit_get_number_of_units = gimp_units_get_number_of_units; + vtable.unit_get_number_of_built_in_units = gimp_units_get_number_of_built_in_units; + vtable.unit_new = gimp_units_unit_new; + vtable.unit_get_deletion_flag = gimp_units_unit_get_deletion_flag; + vtable.unit_set_deletion_flag = gimp_units_unit_set_deletion_flag; + vtable.unit_get_factor = gimp_units_unit_get_factor; + vtable.unit_get_digits = gimp_units_unit_get_digits; + vtable.unit_get_identifier = gimp_units_unit_get_identifier; + vtable.unit_get_symbol = gimp_units_unit_get_symbol; + vtable.unit_get_abbreviation = gimp_units_unit_get_abbreviation; + vtable.unit_get_singular = gimp_units_unit_get_singular; + vtable.unit_get_plural = gimp_units_unit_get_plural; + + gimp_base_init (&vtable); + + gimp->user_units = NULL; + gimp->n_user_units = 0; +} + +void +gimp_units_exit (Gimp *gimp) +{ + g_return_if_fail (GIMP_IS_GIMP (gimp)); + + gimp_user_units_free (gimp); +} + + +/* unitrc functions **********/ + +enum +{ + UNIT_INFO = 1, + UNIT_FACTOR, + UNIT_DIGITS, + UNIT_SYMBOL, + UNIT_ABBREV, + UNIT_SINGULAR, + UNIT_PLURAL +}; + +void +gimp_unitrc_load (Gimp *gimp) +{ + GFile *file; + GScanner *scanner; + GTokenType token; + GError *error = NULL; + + g_return_if_fail (GIMP_IS_GIMP (gimp)); + + file = gimp_directory_file ("unitrc", NULL); + + if (gimp->be_verbose) + g_print ("Parsing '%s'\n", gimp_file_get_utf8_name (file)); + + scanner = gimp_scanner_new_gfile (file, &error); + + if (! scanner && error->code == GIMP_CONFIG_ERROR_OPEN_ENOENT) + { + g_clear_error (&error); + g_object_unref (file); + + file = gimp_sysconf_directory_file ("unitrc", NULL); + + scanner = gimp_scanner_new_gfile (file, NULL); + } + + if (! scanner) + { + g_clear_error (&error); + g_object_unref (file); + return; + } + + g_scanner_scope_add_symbol (scanner, 0, + "unit-info", GINT_TO_POINTER (UNIT_INFO)); + g_scanner_scope_add_symbol (scanner, UNIT_INFO, + "factor", GINT_TO_POINTER (UNIT_FACTOR)); + g_scanner_scope_add_symbol (scanner, UNIT_INFO, + "digits", GINT_TO_POINTER (UNIT_DIGITS)); + g_scanner_scope_add_symbol (scanner, UNIT_INFO, + "symbol", GINT_TO_POINTER (UNIT_SYMBOL)); + g_scanner_scope_add_symbol (scanner, UNIT_INFO, + "abbreviation", GINT_TO_POINTER (UNIT_ABBREV)); + g_scanner_scope_add_symbol (scanner, UNIT_INFO, + "singular", GINT_TO_POINTER (UNIT_SINGULAR)); + g_scanner_scope_add_symbol (scanner, UNIT_INFO, + "plural", GINT_TO_POINTER (UNIT_PLURAL)); + + token = G_TOKEN_LEFT_PAREN; + + while (g_scanner_peek_next_token (scanner) == token) + { + token = g_scanner_get_next_token (scanner); + + switch (token) + { + case G_TOKEN_LEFT_PAREN: + token = G_TOKEN_SYMBOL; + break; + + case G_TOKEN_SYMBOL: + if (scanner->value.v_symbol == GINT_TO_POINTER (UNIT_INFO)) + { + g_scanner_set_scope (scanner, UNIT_INFO); + token = gimp_unitrc_unit_info_deserialize (scanner, gimp); + + if (token == G_TOKEN_RIGHT_PAREN) + g_scanner_set_scope (scanner, 0); + } + break; + + case G_TOKEN_RIGHT_PAREN: + token = G_TOKEN_LEFT_PAREN; + break; + + default: /* do nothing */ + break; + } + } + + if (token != G_TOKEN_LEFT_PAREN) + { + g_scanner_get_next_token (scanner); + g_scanner_unexp_token (scanner, token, NULL, NULL, NULL, + _("fatal parse error"), TRUE); + + gimp_message_literal (gimp, NULL, GIMP_MESSAGE_ERROR, error->message); + g_clear_error (&error); + + gimp_config_file_backup_on_error (file, "unitrc", NULL); + } + + gimp_scanner_destroy (scanner); + g_object_unref (file); +} + +void +gimp_unitrc_save (Gimp *gimp) +{ + GimpConfigWriter *writer; + GFile *file; + gint i; + GError *error = NULL; + + g_return_if_fail (GIMP_IS_GIMP (gimp)); + + file = gimp_directory_file ("unitrc", NULL); + + if (gimp->be_verbose) + g_print ("Writing '%s'\n", gimp_file_get_utf8_name (file)); + + writer = + gimp_config_writer_new_gfile (file, + TRUE, + "GIMP units\n\n" + "This file contains the user unit database. " + "You can edit this list with the unit " + "editor. You are not supposed to edit it " + "manually, but of course you can do.\n" + "This file will be entirely rewritten each " + "time you exit.", + NULL); + + g_object_unref (file); + + if (!writer) + return; + + /* save user defined units */ + for (i = _gimp_unit_get_number_of_built_in_units (gimp); + i < _gimp_unit_get_number_of_units (gimp); + i++) + { + if (_gimp_unit_get_deletion_flag (gimp, i) == FALSE) + { + gchar buf[G_ASCII_DTOSTR_BUF_SIZE]; + + gimp_config_writer_open (writer, "unit-info"); + gimp_config_writer_string (writer, + _gimp_unit_get_identifier (gimp, i)); + + gimp_config_writer_open (writer, "factor"); + gimp_config_writer_print (writer, + g_ascii_dtostr (buf, sizeof (buf), + _gimp_unit_get_factor (gimp, i)), + -1); + gimp_config_writer_close (writer); + + gimp_config_writer_open (writer, "digits"); + gimp_config_writer_printf (writer, + "%d", _gimp_unit_get_digits (gimp, i)); + gimp_config_writer_close (writer); + + gimp_config_writer_open (writer, "symbol"); + gimp_config_writer_string (writer, + _gimp_unit_get_symbol (gimp, i)); + gimp_config_writer_close (writer); + + gimp_config_writer_open (writer, "abbreviation"); + gimp_config_writer_string (writer, + _gimp_unit_get_abbreviation (gimp, i)); + gimp_config_writer_close (writer); + + gimp_config_writer_open (writer, "singular"); + gimp_config_writer_string (writer, + _gimp_unit_get_singular (gimp, i)); + gimp_config_writer_close (writer); + + gimp_config_writer_open (writer, "plural"); + gimp_config_writer_string (writer, + _gimp_unit_get_plural (gimp, i)); + gimp_config_writer_close (writer); + + gimp_config_writer_close (writer); + } + } + + if (! gimp_config_writer_finish (writer, "end of units", &error)) + { + gimp_message_literal (gimp, NULL, GIMP_MESSAGE_ERROR, error->message); + g_clear_error (&error); + } +} + + +/* private functions */ + +static GTokenType +gimp_unitrc_unit_info_deserialize (GScanner *scanner, + Gimp *gimp) +{ + gchar *identifier = NULL; + gdouble factor = 1.0; + gint digits = 2.0; + gchar *symbol = NULL; + gchar *abbreviation = NULL; + gchar *singular = NULL; + gchar *plural = NULL; + GTokenType token; + + if (! gimp_scanner_parse_string (scanner, &identifier)) + return G_TOKEN_STRING; + + token = G_TOKEN_LEFT_PAREN; + + while (g_scanner_peek_next_token (scanner) == token) + { + token = g_scanner_get_next_token (scanner); + + switch (token) + { + case G_TOKEN_LEFT_PAREN: + token = G_TOKEN_SYMBOL; + break; + + case G_TOKEN_SYMBOL: + switch (GPOINTER_TO_INT (scanner->value.v_symbol)) + { + case UNIT_FACTOR: + token = G_TOKEN_FLOAT; + if (! gimp_scanner_parse_float (scanner, &factor)) + goto cleanup; + break; + + case UNIT_DIGITS: + token = G_TOKEN_INT; + if (! gimp_scanner_parse_int (scanner, &digits)) + goto cleanup; + break; + + case UNIT_SYMBOL: + token = G_TOKEN_STRING; + if (! gimp_scanner_parse_string (scanner, &symbol)) + goto cleanup; + break; + + case UNIT_ABBREV: + token = G_TOKEN_STRING; + if (! gimp_scanner_parse_string (scanner, &abbreviation)) + goto cleanup; + break; + + case UNIT_SINGULAR: + token = G_TOKEN_STRING; + if (! gimp_scanner_parse_string (scanner, &singular)) + goto cleanup; + break; + + case UNIT_PLURAL: + token = G_TOKEN_STRING; + if (! gimp_scanner_parse_string (scanner, &plural)) + goto cleanup; + break; + + default: + break; + } + token = G_TOKEN_RIGHT_PAREN; + break; + + case G_TOKEN_RIGHT_PAREN: + token = G_TOKEN_LEFT_PAREN; + break; + + default: + break; + } + } + + if (token == G_TOKEN_LEFT_PAREN) + { + token = G_TOKEN_RIGHT_PAREN; + + if (g_scanner_peek_next_token (scanner) == token) + { + GimpUnit unit = _gimp_unit_new (gimp, + identifier, factor, digits, + symbol, abbreviation, + singular, plural); + + /* make the unit definition persistent */ + _gimp_unit_set_deletion_flag (gimp, unit, FALSE); + } + } + + cleanup: + + g_free (identifier); + g_free (symbol); + g_free (abbreviation); + g_free (singular); + g_free (plural); + + return token; +} |