1324 lines
38 KiB
C
1324 lines
38 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* X10 and X11 bitmap (XBM) loading and exporting file filter for PIKA.
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* XBM code Copyright (C) 1998 Gordon Matzigkeit
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*
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* The XBM reading and writing code was written from scratch by Gordon
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* Matzigkeit <gord@gnu.org> based on the XReadBitmapFile(3X11) manual
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* page distributed with X11R6 and by staring at valid XBM files. It
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* does not contain any code written for other XBM file loaders.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* Release 1.0, 1998-02-04, Gordon Matzigkeit <gord@gnu.org>:
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* - Load and save X10 and X11 bitmaps.
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* - Allow the user to specify the C identifier prefix.
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*
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* TODO:
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* - Parsing is very tolerant, and the algorithms are quite hairy, so
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* load_image should be carefully tested to make sure there are no XBM's
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* that fail.
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*/
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#include "config.h"
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#include <errno.h>
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#include <string.h>
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#include <glib/gstdio.h>
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#include <libpika/pika.h>
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#include <libpika/pikaui.h>
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#include "libpika/stdplugins-intl.h"
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#define LOAD_PROC "file-xbm-load"
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#define SAVE_PROC "file-xbm-save"
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#define PLUG_IN_BINARY "file-xbm"
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#define MAX_COMMENT 72
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#define MAX_MASK_EXT 32
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#define MAX_PREFIX 64
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typedef struct _Xbm Xbm;
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typedef struct _XbmClass XbmClass;
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struct _Xbm
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{
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PikaPlugIn parent_instance;
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};
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struct _XbmClass
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{
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PikaPlugInClass parent_class;
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};
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#define XBM_TYPE (xbm_get_type ())
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#define XBM(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), XBM_TYPE, Xbm))
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GType xbm_get_type (void) G_GNUC_CONST;
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static GList * xbm_query_procedures (PikaPlugIn *plug_in);
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static PikaProcedure * xbm_create_procedure (PikaPlugIn *plug_in,
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const gchar *name);
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static PikaValueArray * xbm_load (PikaProcedure *procedure,
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PikaRunMode run_mode,
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GFile *file,
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PikaMetadata *metadata,
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PikaMetadataLoadFlags *flags,
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PikaProcedureConfig *config,
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gpointer run_data);
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static PikaValueArray * xbm_save (PikaProcedure *procedure,
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PikaRunMode run_mode,
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PikaImage *image,
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gint n_drawables,
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PikaDrawable **drawables,
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GFile *file,
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PikaMetadata *metadata,
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PikaProcedureConfig *config,
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gpointer run_data);
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static PikaImage * load_image (GFile *file,
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GError **error);
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static gboolean save_image (GFile *file,
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const gchar *prefix,
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gboolean save_mask,
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PikaImage *image,
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PikaDrawable *drawable,
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GObject *config,
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GError **error);
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static gboolean save_dialog (PikaImage *image,
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PikaDrawable *drawable,
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PikaProcedure *procedure,
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GObject *config);
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static gboolean print (GOutputStream *output,
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GError **error,
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const gchar *format,
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...) G_GNUC_PRINTF (3, 4);
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G_DEFINE_TYPE (Xbm, xbm, PIKA_TYPE_PLUG_IN)
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PIKA_MAIN (XBM_TYPE)
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DEFINE_STD_SET_I18N
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static void
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xbm_class_init (XbmClass *klass)
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{
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PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
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plug_in_class->query_procedures = xbm_query_procedures;
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plug_in_class->create_procedure = xbm_create_procedure;
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plug_in_class->set_i18n = STD_SET_I18N;
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}
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static void
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xbm_init (Xbm *xbm)
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{
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}
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static GList *
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xbm_query_procedures (PikaPlugIn *plug_in)
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{
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GList *list = NULL;
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list = g_list_append (list, g_strdup (LOAD_PROC));
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list = g_list_append (list, g_strdup (SAVE_PROC));
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return list;
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}
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static PikaProcedure *
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xbm_create_procedure (PikaPlugIn *plug_in,
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const gchar *name)
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{
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PikaProcedure *procedure = NULL;
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if (! strcmp (name, LOAD_PROC))
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{
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procedure = pika_load_procedure_new (plug_in, name,
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PIKA_PDB_PROC_TYPE_PLUGIN,
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xbm_load, NULL, NULL);
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pika_procedure_set_menu_label (procedure, _("X BitMap image"));
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pika_procedure_set_documentation (procedure,
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_("Load a file in X10 or X11 bitmap "
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"(XBM) file format"),
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_("Load a file in X10 or X11 bitmap "
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"(XBM) file format. XBM is a lossless "
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"format for flat black-and-white "
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"(two color indexed) images."),
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name);
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pika_procedure_set_attribution (procedure,
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"Gordon Matzigkeit",
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"Gordon Matzigkeit",
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"1998");
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pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
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"image/x-xbitmap");
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pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
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"xbm,icon,bitmap");
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}
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else if (! strcmp (name, SAVE_PROC))
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{
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procedure = pika_save_procedure_new (plug_in, name,
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PIKA_PDB_PROC_TYPE_PLUGIN,
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FALSE, xbm_save, NULL, NULL);
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pika_procedure_set_image_types (procedure, "INDEXED");
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pika_procedure_set_menu_label (procedure, _("X BitMap image"));
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pika_procedure_set_documentation (procedure,
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_("Export a file in X10 or X11 bitmap "
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"(XBM) file format"),
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_("X10 or X11 bitmap "
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"(XBM) file format. XBM is a lossless "
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"format for flat black-and-white "
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"(two color indexed) images."),
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name);
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pika_procedure_set_attribution (procedure,
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"Gordon Matzigkeit",
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"Gordon Matzigkeit",
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"1998");
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pika_file_procedure_set_format_name (PIKA_FILE_PROCEDURE (procedure),
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_("XBM"));
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pika_file_procedure_set_handles_remote (PIKA_FILE_PROCEDURE (procedure),
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TRUE);
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pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
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"image/x-xbitmap");
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pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
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"xbm,icon,bitmap");
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PIKA_PROC_ARG_BOOLEAN (procedure, "save-comment",
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_("_Write comment"),
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_("Write a comment at the beginning of the file."),
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FALSE, /* *NOT* pika_export_comment() */
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_STRING (procedure, "pika-comment",
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_("Co_mment"),
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_("Image description (maximum 72 bytes)"),
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pika_get_default_comment (),
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G_PARAM_READWRITE);
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pika_procedure_set_argument_sync (procedure, "pika-comment",
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PIKA_ARGUMENT_SYNC_PARASITE);
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PIKA_PROC_ARG_BOOLEAN (procedure, "x10-format",
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_("_X10 format bitmap"),
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_("Export in X10 format"),
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FALSE,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_BOOLEAN (procedure, "use-hot-spot",
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_("Write hot spot _values"),
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_("Write hotspot information"),
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FALSE,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_INT (procedure, "hot-spot-x",
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_("Hot s_pot X"),
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_("X coordinate of hotspot"),
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0, PIKA_MAX_IMAGE_SIZE, 0,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_INT (procedure, "hot-spot-y",
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_("Hot spot _Y"),
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_("Y coordinate of hotspot"),
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0, PIKA_MAX_IMAGE_SIZE, 0,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_STRING (procedure, "prefix",
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_("I_dentifier prefix"),
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_("Identifier prefix [determined from filename]"),
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"bitmap",
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_BOOLEAN (procedure, "write-mask",
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_("Write extra mask _file"),
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_("Write extra mask file"),
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FALSE,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_STRING (procedure, "mask-suffix",
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_("Mas_k file extensions"),
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_("Suffix of the mask file"),
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"-mask",
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G_PARAM_READWRITE);
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}
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return procedure;
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}
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static PikaValueArray *
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xbm_load (PikaProcedure *procedure,
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PikaRunMode run_mode,
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GFile *file,
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PikaMetadata *metadata,
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PikaMetadataLoadFlags *flags,
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PikaProcedureConfig *config,
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gpointer run_data)
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{
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PikaValueArray *return_vals;
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PikaPDBStatusType status = PIKA_PDB_SUCCESS;
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PikaImage *image;
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GError *error = NULL;
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gegl_init (NULL, NULL);
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image = load_image (file, &error);
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if (! image)
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return pika_procedure_new_return_values (procedure, status, error);
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return_vals = pika_procedure_new_return_values (procedure,
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PIKA_PDB_SUCCESS,
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NULL);
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PIKA_VALUES_SET_IMAGE (return_vals, 1, image);
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return return_vals;
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}
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static gchar *
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init_prefix (GFile *file,
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GObject *config)
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{
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gchar *p, *prefix;
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gint len;
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prefix = g_file_get_basename (file);
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g_object_set (config,
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"prefix", NULL,
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NULL);
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if (prefix)
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{
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/* Strip any extension. */
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p = strrchr (prefix, '.');
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if (p && p != prefix)
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len = MIN (MAX_PREFIX, p - prefix);
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else
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len = MAX_PREFIX;
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prefix[len] = '\0';
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g_object_set (config,
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"prefix", prefix,
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NULL);
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}
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return prefix;
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}
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static PikaValueArray *
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xbm_save (PikaProcedure *procedure,
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PikaRunMode run_mode,
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PikaImage *image,
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gint n_drawables,
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PikaDrawable **drawables,
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GFile *file,
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PikaMetadata *metadata,
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PikaProcedureConfig *config,
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gpointer run_data)
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{
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PikaPDBStatusType status = PIKA_PDB_SUCCESS;
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PikaExportReturn export = PIKA_EXPORT_CANCEL;
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gchar *mask_basename = NULL;
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GError *error = NULL;
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gegl_init (NULL, NULL);
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switch (run_mode)
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{
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case PIKA_RUN_INTERACTIVE:
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case PIKA_RUN_WITH_LAST_VALS:
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pika_ui_init (PLUG_IN_BINARY);
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export = pika_export_image (&image, &n_drawables, &drawables, "XBM",
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PIKA_EXPORT_CAN_HANDLE_BITMAP |
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PIKA_EXPORT_CAN_HANDLE_ALPHA);
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if (export == PIKA_EXPORT_CANCEL)
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_CANCEL,
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NULL);
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break;
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default:
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break;
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}
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if (n_drawables != 1)
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{
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g_set_error (&error, G_FILE_ERROR, 0,
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_("XBM format does not support multiple layers."));
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_CALLING_ERROR,
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error);
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}
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if (run_mode == PIKA_RUN_INTERACTIVE ||
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run_mode == PIKA_RUN_WITH_LAST_VALS)
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{
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/* Always override the prefix with the filename. */
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mask_basename = g_strdup (init_prefix (file, G_OBJECT (config)));
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}
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if (run_mode == PIKA_RUN_INTERACTIVE)
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{
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PikaParasite *parasite;
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parasite = pika_image_get_parasite (image, "hot-spot");
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if (parasite)
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{
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gchar *parasite_data;
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guint32 parasite_size;
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gint x, y;
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parasite_data = (gchar *) pika_parasite_get_data (parasite, ¶site_size);
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parasite_data = g_strndup (parasite_data, parasite_size);
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if (sscanf (parasite_data, "%i %i", &x, &y) == 2)
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{
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g_object_set (config,
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"use-hot-spot", TRUE,
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"hot-spot-x", x,
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"hot-spot-y", y,
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NULL);
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}
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pika_parasite_free (parasite);
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g_free (parasite_data);
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}
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if (! save_dialog (image, drawables[0], procedure, G_OBJECT (config)))
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status = PIKA_PDB_CANCEL;
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}
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if (status == PIKA_PDB_SUCCESS)
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{
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GFile *mask_file;
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GFile *dir;
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gchar *mask_prefix;
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gchar *mask_ext;
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gchar *prefix;
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gchar *temp;
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gboolean write_mask;
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g_object_get (config,
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"prefix", &prefix,
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"mask-suffix", &mask_ext,
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"write-mask", &write_mask,
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NULL);
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dir = g_file_get_parent (file);
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temp = g_strdup_printf ("%s%s.xbm", mask_basename, mask_ext);
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mask_file = g_file_get_child (dir, temp);
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g_free (temp);
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g_object_unref (dir);
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/* Change any non-alphanumeric prefix characters to underscores. */
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for (temp = prefix; *temp; temp++)
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if (! g_ascii_isalnum (*temp))
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*temp = '_';
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g_object_set (config,
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"prefix", prefix,
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NULL);
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mask_prefix = g_strdup_printf ("%s%s", prefix, mask_ext);
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for (temp = mask_prefix; *temp; temp++)
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if (! g_ascii_isalnum (*temp))
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*temp = '_';
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if (! save_image (file,
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prefix,
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FALSE,
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image, drawables[0],
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G_OBJECT (config),
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&error)
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||
|
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(write_mask &&
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! save_image (mask_file,
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mask_prefix,
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TRUE,
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image, drawables[0],
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G_OBJECT (config),
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&error)))
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{
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status = PIKA_PDB_EXECUTION_ERROR;
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}
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g_free (prefix);
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g_free (mask_prefix);
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g_free (mask_ext);
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g_free (mask_basename);
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|
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g_object_unref (mask_file);
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}
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|
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if (export == PIKA_EXPORT_EXPORT)
|
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{
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pika_image_delete (image);
|
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g_free (drawables);
|
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}
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|
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return pika_procedure_new_return_values (procedure, status, error);
|
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}
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|
|
/* Return the value of a digit. */
|
|
static gint
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getval (gint c,
|
|
gint base)
|
|
{
|
|
const gchar *digits = "0123456789abcdefABCDEF";
|
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gint val;
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|
|
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/* Include uppercase hex digits. */
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if (base == 16)
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base = 22;
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|
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/* Find a match. */
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for (val = 0; val < base; val ++)
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if (c == digits[val])
|
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return (val < 16) ? val : (val - 6);
|
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return -1;
|
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}
|
|
|
|
|
|
/* Get a comment */
|
|
static gchar *
|
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fgetcomment (FILE *fp)
|
|
{
|
|
GString *str = NULL;
|
|
gint comment, c;
|
|
|
|
comment = 0;
|
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do
|
|
{
|
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c = fgetc (fp);
|
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if (comment)
|
|
{
|
|
if (c == '*')
|
|
{
|
|
/* In a comment, with potential to leave. */
|
|
comment = 1;
|
|
}
|
|
else if (comment == 1 && c == '/')
|
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{
|
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gchar *retval;
|
|
|
|
/* Leaving a comment. */
|
|
comment = 0;
|
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|
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retval = g_strstrip (g_strdup (str->str));
|
|
g_string_free (str, TRUE);
|
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return retval;
|
|
}
|
|
else
|
|
{
|
|
/* In a comment, with no potential to leave. */
|
|
comment = 2;
|
|
g_string_append_c (str, c);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Not in a comment. */
|
|
if (c == '/')
|
|
{
|
|
/* Potential to enter a comment. */
|
|
c = fgetc (fp);
|
|
if (c == '*')
|
|
{
|
|
/* Entered a comment, with no potential to leave. */
|
|
comment = 2;
|
|
str = g_string_new (NULL);
|
|
}
|
|
else
|
|
{
|
|
/* put everything back and return */
|
|
ungetc (c, fp);
|
|
c = '/';
|
|
ungetc (c, fp);
|
|
return NULL;
|
|
}
|
|
}
|
|
else if (c != EOF && g_ascii_isspace (c))
|
|
{
|
|
/* Skip leading whitespace */
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
while (comment && c != EOF);
|
|
|
|
if (str)
|
|
g_string_free (str, TRUE);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Same as fgetc, but skip C-style comments and insert whitespace. */
|
|
static gint
|
|
cpp_fgetc (FILE *fp)
|
|
{
|
|
gint comment, c;
|
|
|
|
/* FIXME: insert whitespace as advertised. */
|
|
comment = 0;
|
|
do
|
|
{
|
|
c = fgetc (fp);
|
|
if (comment)
|
|
{
|
|
if (c == '*')
|
|
/* In a comment, with potential to leave. */
|
|
comment = 1;
|
|
else if (comment == 1 && c == '/')
|
|
/* Leaving a comment. */
|
|
comment = 0;
|
|
else
|
|
/* In a comment, with no potential to leave. */
|
|
comment = 2;
|
|
}
|
|
else
|
|
{
|
|
/* Not in a comment. */
|
|
if (c == '/')
|
|
{
|
|
/* Potential to enter a comment. */
|
|
c = fgetc (fp);
|
|
if (c == '*')
|
|
/* Entered a comment, with no potential to leave. */
|
|
comment = 2;
|
|
else
|
|
{
|
|
/* Just a slash in the open. */
|
|
ungetc (c, fp);
|
|
c = '/';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (comment && c != EOF);
|
|
return c;
|
|
}
|
|
|
|
|
|
/* Match a string with a file. */
|
|
static gint
|
|
match (FILE *fp,
|
|
const gchar *s)
|
|
{
|
|
gint c;
|
|
|
|
do
|
|
{
|
|
c = fgetc (fp);
|
|
if (c == *s)
|
|
s ++;
|
|
else
|
|
break;
|
|
}
|
|
while (c != EOF && *s);
|
|
|
|
if (!*s)
|
|
return TRUE;
|
|
|
|
if (c != EOF)
|
|
ungetc (c, fp);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/* Read the next integer from the file, skipping all non-integers. */
|
|
static gint
|
|
get_int (FILE *fp)
|
|
{
|
|
int digval, base, val, c;
|
|
|
|
do
|
|
c = cpp_fgetc (fp);
|
|
while (c != EOF && ! g_ascii_isdigit (c));
|
|
|
|
if (c == EOF)
|
|
return 0;
|
|
|
|
/* Check for the base. */
|
|
if (c == '0')
|
|
{
|
|
c = fgetc (fp);
|
|
if (c == 'x' || c == 'X')
|
|
{
|
|
c = fgetc (fp);
|
|
base = 16;
|
|
}
|
|
else if (g_ascii_isdigit (c))
|
|
base = 8;
|
|
else
|
|
{
|
|
ungetc (c, fp);
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
base = 10;
|
|
|
|
val = 0;
|
|
for (;;)
|
|
{
|
|
digval = getval (c, base);
|
|
if (digval == -1)
|
|
{
|
|
ungetc (c, fp);
|
|
break;
|
|
}
|
|
val *= base;
|
|
val += digval;
|
|
c = fgetc (fp);
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static PikaImage *
|
|
load_image (GFile *file,
|
|
GError **error)
|
|
{
|
|
FILE *fp;
|
|
GeglBuffer *buffer;
|
|
PikaImage *image;
|
|
PikaLayer *layer;
|
|
guchar *data;
|
|
gint intbits;
|
|
gint width = 0;
|
|
gint height = 0;
|
|
gint x_hot = 0;
|
|
gint y_hot = 0;
|
|
gint c, i, j, k;
|
|
gint tileheight, rowoffset;
|
|
gchar *comment;
|
|
|
|
const guchar cmap[] =
|
|
{
|
|
0x00, 0x00, 0x00, /* black */
|
|
0xff, 0xff, 0xff /* white */
|
|
};
|
|
|
|
pika_progress_init_printf (_("Opening '%s'"),
|
|
pika_file_get_utf8_name (file));
|
|
|
|
fp = g_fopen (g_file_peek_path (file), "rb");
|
|
|
|
if (! fp)
|
|
{
|
|
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
|
|
_("Could not open '%s' for reading: %s"),
|
|
pika_file_get_utf8_name (file), g_strerror (errno));
|
|
return NULL;
|
|
}
|
|
|
|
comment = fgetcomment (fp);
|
|
|
|
/* Loosely parse the header */
|
|
intbits = height = width = 0;
|
|
c = ' ';
|
|
do
|
|
{
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
if (match (fp, "char"))
|
|
{
|
|
c = fgetc (fp);
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
intbits = 8;
|
|
continue;
|
|
}
|
|
}
|
|
else if (match (fp, "short"))
|
|
{
|
|
c = fgetc (fp);
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
intbits = 16;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (c == '_')
|
|
{
|
|
if (match (fp, "width"))
|
|
{
|
|
c = fgetc (fp);
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
width = get_int (fp);
|
|
continue;
|
|
}
|
|
}
|
|
else if (match (fp, "height"))
|
|
{
|
|
c = fgetc (fp);
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
height = get_int (fp);
|
|
continue;
|
|
}
|
|
}
|
|
else if (match (fp, "x_hot"))
|
|
{
|
|
c = fgetc (fp);
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
x_hot = get_int (fp);
|
|
continue;
|
|
}
|
|
}
|
|
else if (match (fp, "y_hot"))
|
|
{
|
|
c = fgetc (fp);
|
|
if (g_ascii_isspace (c))
|
|
{
|
|
y_hot = get_int (fp);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
c = cpp_fgetc (fp);
|
|
}
|
|
while (c != '{' && c != EOF);
|
|
|
|
if (c == EOF)
|
|
{
|
|
g_message (_("'%s':\nCould not read header (ftell == %ld)"),
|
|
pika_file_get_utf8_name (file), ftell (fp));
|
|
fclose (fp);
|
|
return NULL;
|
|
}
|
|
|
|
if (width <= 0)
|
|
{
|
|
g_message (_("'%s':\nNo image width specified"),
|
|
pika_file_get_utf8_name (file));
|
|
fclose (fp);
|
|
return NULL;
|
|
}
|
|
|
|
if (width > PIKA_MAX_IMAGE_SIZE)
|
|
{
|
|
g_message (_("'%s':\nImage width is larger than PIKA can handle"),
|
|
pika_file_get_utf8_name (file));
|
|
fclose (fp);
|
|
return NULL;
|
|
}
|
|
|
|
if (height <= 0)
|
|
{
|
|
g_message (_("'%s':\nNo image height specified"),
|
|
pika_file_get_utf8_name (file));
|
|
fclose (fp);
|
|
return NULL;
|
|
}
|
|
|
|
if (height > PIKA_MAX_IMAGE_SIZE)
|
|
{
|
|
g_message (_("'%s':\nImage height is larger than PIKA can handle"),
|
|
pika_file_get_utf8_name (file));
|
|
fclose (fp);
|
|
return NULL;
|
|
}
|
|
|
|
if (intbits == 0)
|
|
{
|
|
g_message (_("'%s':\nNo image data type specified"),
|
|
pika_file_get_utf8_name (file));
|
|
fclose (fp);
|
|
return NULL;
|
|
}
|
|
|
|
image = pika_image_new (width, height, PIKA_INDEXED);
|
|
|
|
if (comment)
|
|
{
|
|
PikaParasite *parasite;
|
|
|
|
parasite = pika_parasite_new ("pika-comment",
|
|
PIKA_PARASITE_PERSISTENT,
|
|
strlen (comment) + 1, (gpointer) comment);
|
|
pika_image_attach_parasite (image, parasite);
|
|
pika_parasite_free (parasite);
|
|
|
|
g_free (comment);
|
|
}
|
|
|
|
x_hot = CLAMP (x_hot, 0, width);
|
|
y_hot = CLAMP (y_hot, 0, height);
|
|
|
|
if (x_hot > 0 || y_hot > 0)
|
|
{
|
|
PikaParasite *parasite;
|
|
gchar *str;
|
|
|
|
str = g_strdup_printf ("%d %d", x_hot, y_hot);
|
|
parasite = pika_parasite_new ("hot-spot",
|
|
PIKA_PARASITE_PERSISTENT,
|
|
strlen (str) + 1, (gpointer) str);
|
|
g_free (str);
|
|
pika_image_attach_parasite (image, parasite);
|
|
pika_parasite_free (parasite);
|
|
}
|
|
|
|
/* Set a black-and-white colormap. */
|
|
pika_image_set_colormap (image, cmap, 2);
|
|
|
|
layer = pika_layer_new (image,
|
|
_("Background"),
|
|
width, height,
|
|
PIKA_INDEXED_IMAGE,
|
|
100,
|
|
pika_image_get_default_new_layer_mode (image));
|
|
pika_image_insert_layer (image, layer, NULL, 0);
|
|
|
|
buffer = pika_drawable_get_buffer (PIKA_DRAWABLE (layer));
|
|
|
|
/* Allocate the data. */
|
|
tileheight = pika_tile_height ();
|
|
data = (guchar *) g_malloc (width * tileheight);
|
|
|
|
for (i = 0; i < height; i += tileheight)
|
|
{
|
|
tileheight = MIN (tileheight, height - i);
|
|
|
|
/* Parse the data from the file */
|
|
for (j = 0; j < tileheight; j ++)
|
|
{
|
|
/* Read each row. */
|
|
rowoffset = j * width;
|
|
for (k = 0; k < width; k ++)
|
|
{
|
|
/* Expand each integer into INTBITS pixels. */
|
|
if (k % intbits == 0)
|
|
{
|
|
c = get_int (fp);
|
|
|
|
/* Flip all the bits so that 1's become black and
|
|
0's become white. */
|
|
c ^= 0xffff;
|
|
}
|
|
|
|
data[rowoffset + k] = c & 1;
|
|
c >>= 1;
|
|
}
|
|
}
|
|
|
|
/* Put the data into the image. */
|
|
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, i, width, tileheight), 0,
|
|
NULL, data, GEGL_AUTO_ROWSTRIDE);
|
|
|
|
pika_progress_update ((double) (i + tileheight) / (double) height);
|
|
}
|
|
|
|
g_free (data);
|
|
g_object_unref (buffer);
|
|
fclose (fp);
|
|
|
|
pika_progress_update (1.0);
|
|
|
|
return image;
|
|
}
|
|
|
|
static gboolean
|
|
save_image (GFile *file,
|
|
const gchar *prefix,
|
|
gboolean save_mask,
|
|
PikaImage *image,
|
|
PikaDrawable *drawable,
|
|
GObject *config,
|
|
GError **error)
|
|
{
|
|
GOutputStream *output;
|
|
GeglBuffer *buffer;
|
|
GCancellable *cancellable;
|
|
gint width, height, colors, dark;
|
|
gint intbits, lineints, need_comma, nints, rowoffset, tileheight;
|
|
gint c, i, j, k, thisbit;
|
|
gboolean has_alpha;
|
|
gint bpp;
|
|
guchar *data = NULL;
|
|
guchar *cmap;
|
|
const gchar *intfmt;
|
|
gboolean config_save_comment;
|
|
gchar *config_comment;
|
|
gint config_x10_format;
|
|
gint config_use_hot;
|
|
gint config_x_hot;
|
|
gint config_y_hot;
|
|
|
|
g_object_get (config,
|
|
"save-comment", &config_save_comment,
|
|
"pika-comment", &config_comment,
|
|
"x10-format", &config_x10_format,
|
|
"use-hot-spot", &config_use_hot,
|
|
"hot-spot-x", &config_x_hot,
|
|
"hot-spot-y", &config_y_hot,
|
|
NULL);
|
|
|
|
#if 0
|
|
if (save_mask)
|
|
g_printerr ("%s: save_mask '%s'\n", G_STRFUNC, prefix);
|
|
else
|
|
g_printerr ("%s: save_image '%s'\n", G_STRFUNC, prefix);
|
|
#endif
|
|
|
|
cmap = pika_image_get_colormap (image, NULL, &colors);
|
|
|
|
if (! pika_drawable_is_indexed (drawable) || colors > 2)
|
|
{
|
|
/* The image is not black-and-white. */
|
|
g_message (_("The image which you are trying to export as "
|
|
"an XBM contains more than two colors.\n\n"
|
|
"Please convert it to a black and white "
|
|
"(1-bit) indexed image and try again."));
|
|
g_free (cmap);
|
|
return FALSE;
|
|
}
|
|
|
|
has_alpha = pika_drawable_has_alpha (drawable);
|
|
|
|
if (! has_alpha && save_mask)
|
|
{
|
|
g_message (_("You cannot save a cursor mask for an image\n"
|
|
"which has no alpha channel."));
|
|
return FALSE;
|
|
}
|
|
|
|
buffer = pika_drawable_get_buffer (drawable);
|
|
width = gegl_buffer_get_width (buffer);
|
|
height = gegl_buffer_get_height (buffer);
|
|
bpp = pika_drawable_get_bpp (drawable);
|
|
|
|
/* Figure out which color is black, and which is white. */
|
|
dark = 0;
|
|
if (colors > 1)
|
|
{
|
|
gint first, second;
|
|
|
|
/* Maybe the second color is darker than the first. */
|
|
first = (cmap[0] * cmap[0]) + (cmap[1] * cmap[1]) + (cmap[2] * cmap[2]);
|
|
second = (cmap[3] * cmap[3]) + (cmap[4] * cmap[4]) + (cmap[5] * cmap[5]);
|
|
|
|
if (second < first)
|
|
dark = 1;
|
|
}
|
|
|
|
pika_progress_init_printf (_("Exporting '%s'"),
|
|
pika_file_get_utf8_name (file));
|
|
|
|
output = G_OUTPUT_STREAM (g_file_replace (file,
|
|
NULL, FALSE, G_FILE_CREATE_NONE,
|
|
NULL, error));
|
|
if (output)
|
|
{
|
|
GOutputStream *buffered;
|
|
|
|
buffered = g_buffered_output_stream_new (output);
|
|
g_object_unref (output);
|
|
|
|
output = buffered;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
/* Maybe write the image comment. */
|
|
if (config_save_comment && config_comment && *config_comment)
|
|
{
|
|
if (! print (output, error, "/* %s */\n", config_comment))
|
|
goto fail;
|
|
}
|
|
|
|
/* Write out the image height and width. */
|
|
if (! print (output, error, "#define %s_width %d\n", prefix, width) ||
|
|
! print (output, error, "#define %s_height %d\n", prefix, height))
|
|
goto fail;
|
|
|
|
/* Write out the hotspot, if any. */
|
|
if (config_use_hot)
|
|
{
|
|
if (! print (output, error,
|
|
"#define %s_x_hot %d\n", prefix, config_x_hot) ||
|
|
! print (output, error,
|
|
"#define %s_y_hot %d\n", prefix, config_y_hot))
|
|
goto fail;
|
|
}
|
|
|
|
/* Now write the actual data. */
|
|
if (config_x10_format)
|
|
{
|
|
/* We can fit 9 hex shorts on a single line. */
|
|
lineints = 9;
|
|
intbits = 16;
|
|
intfmt = " 0x%04x";
|
|
}
|
|
else
|
|
{
|
|
/* We can fit 12 hex chars on a single line. */
|
|
lineints = 12;
|
|
intbits = 8;
|
|
intfmt = " 0x%02x";
|
|
}
|
|
|
|
if (! print (output, error,
|
|
"static %s %s_bits[] = {\n ",
|
|
config_x10_format ? "unsigned short" : "unsigned char", prefix))
|
|
goto fail;
|
|
|
|
/* Allocate a new set of pixels. */
|
|
tileheight = pika_tile_height ();
|
|
data = (guchar *) g_malloc (width * tileheight * bpp);
|
|
|
|
/* Write out the integers. */
|
|
need_comma = 0;
|
|
nints = 0;
|
|
for (i = 0; i < height; i += tileheight)
|
|
{
|
|
/* Get a horizontal slice of the image. */
|
|
tileheight = MIN (tileheight, height - i);
|
|
|
|
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, tileheight), 1.0,
|
|
NULL, data,
|
|
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
|
|
|
|
for (j = 0; j < tileheight; j ++)
|
|
{
|
|
/* Write out a row at a time. */
|
|
rowoffset = j * width * bpp;
|
|
c = 0;
|
|
thisbit = 0;
|
|
|
|
for (k = 0; k < width * bpp; k += bpp)
|
|
{
|
|
if (k != 0 && thisbit == intbits)
|
|
{
|
|
/* Output a completed integer. */
|
|
if (need_comma)
|
|
{
|
|
if (! print (output, error, ","))
|
|
goto fail;
|
|
}
|
|
|
|
need_comma = 1;
|
|
|
|
/* Maybe start a new line. */
|
|
if (nints ++ >= lineints)
|
|
{
|
|
nints = 1;
|
|
|
|
if (! print (output, error, "\n "))
|
|
goto fail;
|
|
}
|
|
|
|
if (! print (output, error, intfmt, c))
|
|
goto fail;
|
|
|
|
/* Start a new integer. */
|
|
c = 0;
|
|
thisbit = 0;
|
|
}
|
|
|
|
/* Pack INTBITS pixels into an integer. */
|
|
if (save_mask)
|
|
{
|
|
c |= ((data[rowoffset + k + 1] < 128) ? 0 : 1) << (thisbit ++);
|
|
}
|
|
else
|
|
{
|
|
if (has_alpha && (data[rowoffset + k + 1] < 128))
|
|
c |= 0 << (thisbit ++);
|
|
else
|
|
c |= ((data[rowoffset + k] == dark) ? 1 : 0) << (thisbit ++);
|
|
}
|
|
}
|
|
|
|
if (thisbit != 0)
|
|
{
|
|
/* Write out the last oddball int. */
|
|
if (need_comma)
|
|
{
|
|
if (! print (output, error, ","))
|
|
goto fail;
|
|
}
|
|
|
|
need_comma = 1;
|
|
|
|
/* Maybe start a new line. */
|
|
if (nints ++ == lineints)
|
|
{
|
|
nints = 1;
|
|
|
|
if (! print (output, error, "\n "))
|
|
goto fail;
|
|
}
|
|
|
|
if (! print (output, error, intfmt, c))
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
pika_progress_update ((double) (i + tileheight) / (double) height);
|
|
}
|
|
|
|
/* Write the trailer. */
|
|
if (! print (output, error, " };\n"))
|
|
goto fail;
|
|
|
|
if (! g_output_stream_close (output, NULL, error))
|
|
goto fail;
|
|
|
|
g_free (data);
|
|
g_object_unref (buffer);
|
|
g_object_unref (output);
|
|
|
|
pika_progress_update (1.0);
|
|
|
|
return TRUE;
|
|
|
|
fail:
|
|
|
|
cancellable = g_cancellable_new ();
|
|
g_cancellable_cancel (cancellable);
|
|
g_output_stream_close (output, cancellable, NULL);
|
|
g_object_unref (cancellable);
|
|
|
|
g_free (data);
|
|
g_object_unref (buffer);
|
|
g_object_unref (output);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
save_dialog (PikaImage *image,
|
|
PikaDrawable *drawable,
|
|
PikaProcedure *procedure,
|
|
GObject *config)
|
|
{
|
|
GtkWidget *dialog;
|
|
GtkWidget *vbox;
|
|
GtkWidget *frame;
|
|
GtkWidget *hint;
|
|
gboolean run;
|
|
|
|
dialog = pika_save_procedure_dialog_new (PIKA_SAVE_PROCEDURE (procedure),
|
|
PIKA_PROCEDURE_CONFIG (config),
|
|
image);
|
|
|
|
/* comment string. */
|
|
|
|
|
|
hint = g_object_new (PIKA_TYPE_HINT_BOX,
|
|
"icon-name", PIKA_ICON_DIALOG_WARNING,
|
|
"hint", _("Writing a comment will make the XBM "
|
|
"file unreadable by some applications.\n"
|
|
"The comment will not affect embedding "
|
|
"the XBM in C source code."),
|
|
NULL);
|
|
|
|
vbox = pika_procedure_dialog_fill_box (PIKA_PROCEDURE_DIALOG (dialog),
|
|
"comment-vbox", "pika-comment", NULL);
|
|
|
|
gtk_box_pack_start (GTK_BOX (vbox), hint, FALSE, FALSE, 0);
|
|
gtk_widget_set_visible (hint, TRUE);
|
|
gtk_box_reorder_child (GTK_BOX (vbox), hint, 0);
|
|
gtk_widget_set_margin_end (hint, 24);
|
|
|
|
frame = pika_procedure_dialog_fill_frame (PIKA_PROCEDURE_DIALOG (dialog),
|
|
"comment-frame", "save-comment",
|
|
FALSE, "comment-vbox");
|
|
|
|
/* hotspot toggle */
|
|
pika_procedure_dialog_fill_box (PIKA_PROCEDURE_DIALOG (dialog),
|
|
"hot-spot-vbox", "hot-spot-x", "hot-spot-y",
|
|
NULL);
|
|
|
|
frame = pika_procedure_dialog_fill_frame (PIKA_PROCEDURE_DIALOG (dialog),
|
|
"hot-spot-frame", "use-hot-spot",
|
|
FALSE, "hot-spot-vbox");
|
|
|
|
/* mask file */
|
|
frame = pika_procedure_dialog_fill_frame (PIKA_PROCEDURE_DIALOG (dialog),
|
|
"mask-frame", "write-mask",
|
|
FALSE, "mask-suffix");
|
|
gtk_widget_set_sensitive (frame, pika_drawable_has_alpha (drawable));
|
|
|
|
pika_procedure_dialog_fill (PIKA_PROCEDURE_DIALOG (dialog),
|
|
"x10-format", "prefix", "comment-frame",
|
|
"hot-spot-frame", "mask-frame", NULL);
|
|
|
|
gtk_widget_show (dialog);
|
|
|
|
run = pika_procedure_dialog_run (PIKA_PROCEDURE_DIALOG (dialog));
|
|
|
|
gtk_widget_destroy (dialog);
|
|
|
|
return run;
|
|
}
|
|
|
|
static gboolean
|
|
print (GOutputStream *output,
|
|
GError **error,
|
|
const gchar *format,
|
|
...)
|
|
{
|
|
va_list args;
|
|
gboolean success;
|
|
|
|
va_start (args, format);
|
|
success = g_output_stream_vprintf (output, NULL, NULL,
|
|
error, format, args);
|
|
va_end (args);
|
|
|
|
return success;
|
|
}
|
