diff options
Diffstat (limited to 'app/text/gimptext-parasite.c')
| -rw-r--r-- | app/text/gimptext-parasite.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/app/text/gimptext-parasite.c b/app/text/gimptext-parasite.c new file mode 100644 index 0000000..790a5b1 --- /dev/null +++ b/app/text/gimptext-parasite.c @@ -0,0 +1,204 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * GimpText + * Copyright (C) 2003 Sven Neumann <sven@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 <string.h> +#include <stdlib.h> + +#include <cairo.h> +#include <gegl.h> +#include <gdk-pixbuf/gdk-pixbuf.h> + +#include "libgimpbase/gimpbase.h" +#include "libgimpcolor/gimpcolor.h" +#include "libgimpconfig/gimpconfig.h" + +#include "text-types.h" + +#include "core/gimperror.h" + +#include "gimptext.h" +#include "gimptext-parasite.h" +#include "gimptext-xlfd.h" + +#include "gimp-intl.h" + + +/****************************************/ +/* The native GimpTextLayer parasite. */ +/****************************************/ + +const gchar * +gimp_text_parasite_name (void) +{ + return "gimp-text-layer"; +} + +GimpParasite * +gimp_text_to_parasite (const GimpText *text) +{ + GimpParasite *parasite; + gchar *str; + + g_return_val_if_fail (GIMP_IS_TEXT (text), NULL); + + str = gimp_config_serialize_to_string (GIMP_CONFIG (text), NULL); + g_return_val_if_fail (str != NULL, NULL); + + parasite = gimp_parasite_new (gimp_text_parasite_name (), + GIMP_PARASITE_PERSISTENT, + strlen (str) + 1, str); + g_free (str); + + return parasite; +} + +GimpText * +gimp_text_from_parasite (const GimpParasite *parasite, + GError **error) +{ + GimpText *text; + const gchar *str; + + g_return_val_if_fail (parasite != NULL, NULL); + g_return_val_if_fail (strcmp (gimp_parasite_name (parasite), + gimp_text_parasite_name ()) == 0, NULL); + g_return_val_if_fail (error == NULL || *error == NULL, NULL); + + str = gimp_parasite_data (parasite); + + text = g_object_new (GIMP_TYPE_TEXT, NULL); + + if (str != NULL) + { + gimp_config_deserialize_string (GIMP_CONFIG (text), + str, + gimp_parasite_data_size (parasite), + NULL, + error); + } + else + { + g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED, + _("Empty text parasite")); + } + + return text; +} + + +/****************************************************************/ +/* Compatibility to plug-in GDynText 1.4.4 and later versions */ +/* GDynText was written by Marco Lamberto <lm@geocities.com> */ +/****************************************************************/ + +const gchar * +gimp_text_gdyntext_parasite_name (void) +{ + return "plug_in_gdyntext/data"; +} + +enum +{ + TEXT = 0, + ANTIALIAS = 1, + ALIGNMENT = 2, + ROTATION = 3, + LINE_SPACING = 4, + COLOR = 5, + LAYER_ALIGNMENT = 6, + XLFD = 7, + NUM_PARAMS +}; + +GimpText * +gimp_text_from_gdyntext_parasite (const GimpParasite *parasite) +{ + GimpText *retval = NULL; + GimpTextJustification justify; + const gchar *str; + gchar *text = NULL; + gchar **params; + gboolean antialias; + gdouble spacing; + GimpRGB rgb; + glong color; + gint i; + + g_return_val_if_fail (parasite != NULL, NULL); + g_return_val_if_fail (strcmp (gimp_parasite_name (parasite), + gimp_text_gdyntext_parasite_name ()) == 0, + NULL); + + str = gimp_parasite_data (parasite); + g_return_val_if_fail (str != NULL, NULL); + + if (! g_str_has_prefix (str, "GDT10{")) /* magic value */ + return NULL; + + params = g_strsplit (str + strlen ("GDT10{"), "}{", -1); + + /* first check that we have the required number of parameters */ + for (i = 0; i < NUM_PARAMS; i++) + if (!params[i]) + goto cleanup; + + text = g_strcompress (params[TEXT]); + + if (! g_utf8_validate (text, -1, NULL)) + { + gchar *tmp = gimp_any_to_utf8 (text, -1, NULL); + + g_free (text); + text = tmp; + } + + antialias = atoi (params[ANTIALIAS]) ? TRUE : FALSE; + + switch (atoi (params[ALIGNMENT])) + { + default: + case 0: justify = GIMP_TEXT_JUSTIFY_LEFT; break; + case 1: justify = GIMP_TEXT_JUSTIFY_CENTER; break; + case 2: justify = GIMP_TEXT_JUSTIFY_RIGHT; break; + } + + spacing = g_strtod (params[LINE_SPACING], NULL); + + color = strtol (params[COLOR], NULL, 16); + gimp_rgba_set_uchar (&rgb, color >> 16, color >> 8, color, 255); + + retval = g_object_new (GIMP_TYPE_TEXT, + "text", text, + "antialias", antialias, + "justify", justify, + "line-spacing", spacing, + "color", &rgb, + NULL); + + gimp_text_set_font_from_xlfd (GIMP_TEXT (retval), params[XLFD]); + + cleanup: + g_free (text); + g_strfreev (params); + + return retval; +} |