2001-02-04 17:34:30 +00:00
|
|
|
/* The GIMP -- an 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 2 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, write to the Free Software
|
|
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "config.h"
|
|
|
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
2001-02-07 01:16:18 +00:00
|
|
|
#include <stdio.h>
|
2001-02-04 17:34:30 +00:00
|
|
|
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <sys/stat.h>
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
|
|
#include <unistd.h>
|
|
|
|
#endif
|
|
|
|
#include <fcntl.h>
|
|
|
|
|
2001-02-07 01:16:18 +00:00
|
|
|
#include <gtk/gtk.h>
|
|
|
|
|
2001-02-04 17:34:30 +00:00
|
|
|
#ifdef G_OS_WIN32
|
|
|
|
#include <io.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef _O_BINARY
|
|
|
|
#define _O_BINARY 0
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include "apptypes.h"
|
|
|
|
|
2001-02-05 21:52:57 +00:00
|
|
|
#include "gimpimage.h"
|
2001-02-04 17:34:30 +00:00
|
|
|
#include "gimppattern.h"
|
|
|
|
#include "gimprc.h"
|
|
|
|
#include "patterns.h"
|
|
|
|
#include "pattern_header.h"
|
|
|
|
#include "temp_buf.h"
|
|
|
|
|
|
|
|
#include "libgimp/gimpintl.h"
|
|
|
|
|
|
|
|
|
2001-02-07 00:06:58 +00:00
|
|
|
static void gimp_pattern_class_init (GimpPatternClass *klass);
|
|
|
|
static void gimp_pattern_init (GimpPattern *pattern);
|
|
|
|
static void gimp_pattern_destroy (GtkObject *object);
|
|
|
|
static TempBuf * gimp_pattern_get_new_preview (GimpViewable *viewable,
|
|
|
|
gint width,
|
|
|
|
gint height);
|
2001-02-04 17:34:30 +00:00
|
|
|
|
|
|
|
|
2001-02-05 15:22:20 +00:00
|
|
|
static GimpViewableClass *parent_class = NULL;
|
2001-02-04 17:34:30 +00:00
|
|
|
|
|
|
|
|
|
|
|
GtkType
|
|
|
|
gimp_pattern_get_type (void)
|
|
|
|
{
|
|
|
|
static GtkType pattern_type = 0;
|
|
|
|
|
|
|
|
if (! pattern_type)
|
|
|
|
{
|
|
|
|
static const GtkTypeInfo pattern_info =
|
|
|
|
{
|
|
|
|
"GimpPattern",
|
|
|
|
sizeof (GimpPattern),
|
|
|
|
sizeof (GimpPatternClass),
|
|
|
|
(GtkClassInitFunc) gimp_pattern_class_init,
|
|
|
|
(GtkObjectInitFunc) gimp_pattern_init,
|
|
|
|
/* reserved_1 */ NULL,
|
|
|
|
/* reserved_2 */ NULL,
|
|
|
|
(GtkClassInitFunc) NULL
|
|
|
|
};
|
|
|
|
|
2001-02-05 15:22:20 +00:00
|
|
|
pattern_type = gtk_type_unique (GIMP_TYPE_VIEWABLE, &pattern_info);
|
2001-02-04 17:34:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return pattern_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_pattern_class_init (GimpPatternClass *klass)
|
|
|
|
{
|
2001-02-05 15:22:20 +00:00
|
|
|
GtkObjectClass *object_class;
|
|
|
|
GimpViewableClass *viewable_class;
|
2001-02-04 17:34:30 +00:00
|
|
|
|
2001-02-05 15:22:20 +00:00
|
|
|
object_class = (GtkObjectClass *) klass;
|
|
|
|
viewable_class = (GimpViewableClass *) klass;
|
|
|
|
|
|
|
|
parent_class = gtk_type_class (GIMP_TYPE_VIEWABLE);
|
2001-02-04 17:34:30 +00:00
|
|
|
|
|
|
|
object_class->destroy = gimp_pattern_destroy;
|
2001-02-05 15:22:20 +00:00
|
|
|
|
2001-02-07 00:06:58 +00:00
|
|
|
viewable_class->get_new_preview = gimp_pattern_get_new_preview;
|
2001-02-04 17:34:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_pattern_init (GimpPattern *pattern)
|
|
|
|
{
|
|
|
|
pattern->filename = NULL;
|
|
|
|
pattern->mask = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_pattern_destroy (GtkObject *object)
|
|
|
|
{
|
|
|
|
GimpPattern *pattern;
|
|
|
|
|
|
|
|
pattern = GIMP_PATTERN (object);
|
|
|
|
|
|
|
|
g_free (pattern->filename);
|
|
|
|
|
|
|
|
if (pattern->mask)
|
|
|
|
temp_buf_free (pattern->mask);
|
|
|
|
|
|
|
|
if (GTK_OBJECT_CLASS (parent_class)->destroy)
|
|
|
|
GTK_OBJECT_CLASS (parent_class)->destroy (object);
|
|
|
|
}
|
|
|
|
|
2001-02-05 15:22:20 +00:00
|
|
|
static TempBuf *
|
2001-02-07 00:06:58 +00:00
|
|
|
gimp_pattern_get_new_preview (GimpViewable *viewable,
|
|
|
|
gint width,
|
|
|
|
gint height)
|
2001-02-05 15:22:20 +00:00
|
|
|
{
|
|
|
|
GimpPattern *pattern;
|
2001-02-05 21:52:57 +00:00
|
|
|
TempBuf *temp_buf;
|
|
|
|
guchar white[MAX_CHANNELS] = { 255, 255, 255, 255 };
|
|
|
|
gint copy_width;
|
|
|
|
gint copy_height;
|
|
|
|
gint x, y;
|
2001-02-05 15:22:20 +00:00
|
|
|
|
|
|
|
pattern = GIMP_PATTERN (viewable);
|
|
|
|
|
2001-02-05 21:52:57 +00:00
|
|
|
copy_width = MIN (width, pattern->mask->width);
|
|
|
|
copy_height = MIN (height, pattern->mask->height);
|
|
|
|
|
2001-02-05 23:44:19 +00:00
|
|
|
x = (copy_width == width) ? 0 : (width - copy_width) / 2;
|
|
|
|
y = (copy_height == height) ? 0 : (height - copy_height) / 2;
|
2001-02-05 21:52:57 +00:00
|
|
|
|
2001-02-05 23:44:19 +00:00
|
|
|
temp_buf = temp_buf_new (width, height,
|
2001-02-05 21:52:57 +00:00
|
|
|
pattern->mask->bytes,
|
|
|
|
0, 0,
|
|
|
|
white);
|
|
|
|
|
|
|
|
temp_buf_copy_area (pattern->mask, temp_buf,
|
|
|
|
0, 0,
|
|
|
|
copy_width, copy_height,
|
|
|
|
x, y);
|
|
|
|
|
|
|
|
return temp_buf;
|
2001-02-05 15:22:20 +00:00
|
|
|
}
|
|
|
|
|
2001-02-04 17:34:30 +00:00
|
|
|
GimpPattern *
|
|
|
|
gimp_pattern_load (const gchar *filename)
|
|
|
|
{
|
|
|
|
GimpPattern *pattern = NULL;
|
|
|
|
gint fd;
|
|
|
|
PatternHeader header;
|
|
|
|
gint bn_size;
|
|
|
|
gchar *name = NULL;
|
|
|
|
|
|
|
|
g_return_val_if_fail (filename != NULL, NULL);
|
|
|
|
|
|
|
|
fd = open (filename, O_RDONLY | _O_BINARY);
|
|
|
|
if (fd == -1)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
/* Read in the header size */
|
|
|
|
if (read (fd, &header, sizeof (header)) != sizeof (header))
|
|
|
|
goto error;
|
|
|
|
|
|
|
|
/* rearrange the bytes in each unsigned int */
|
|
|
|
header.header_size = g_ntohl (header.header_size);
|
|
|
|
header.version = g_ntohl (header.version);
|
|
|
|
header.width = g_ntohl (header.width);
|
|
|
|
header.height = g_ntohl (header.height);
|
|
|
|
header.bytes = g_ntohl (header.bytes);
|
|
|
|
header.magic_number = g_ntohl (header.magic_number);
|
|
|
|
|
|
|
|
/* Check for correct file format */
|
|
|
|
if (header.magic_number != GPATTERN_MAGIC || header.version != 1 ||
|
|
|
|
header.header_size <= sizeof (header))
|
|
|
|
{
|
|
|
|
g_message (_("Unknown pattern format version #%d in \"%s\"."),
|
|
|
|
header.version, filename);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check for supported bit depths */
|
|
|
|
if (header.bytes != 1 && header.bytes != 3)
|
|
|
|
{
|
|
|
|
g_message ("Unsupported pattern depth: %d\n"
|
|
|
|
"in file \"%s\"\n"
|
|
|
|
"GIMP Patterns must be GRAY or RGB\n",
|
|
|
|
header.bytes, filename);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Read in the pattern name */
|
|
|
|
if ((bn_size = (header.header_size - sizeof (header))))
|
|
|
|
{
|
|
|
|
name = g_new (gchar, bn_size);
|
|
|
|
|
|
|
|
if ((read (fd, name, bn_size)) < bn_size)
|
|
|
|
{
|
|
|
|
g_message (_("Error in GIMP pattern file \"%s\"."), filename);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
name = g_strdup (_("Unnamed"));
|
|
|
|
}
|
|
|
|
|
|
|
|
pattern = GIMP_PATTERN (gtk_type_new (GIMP_TYPE_PATTERN));
|
|
|
|
pattern->mask = temp_buf_new (header.width, header.height, header.bytes,
|
|
|
|
0, 0, NULL);
|
|
|
|
if (read (fd, temp_buf_data (pattern->mask),
|
|
|
|
header.width * header.height * header.bytes) <
|
|
|
|
header.width * header.height * header.bytes)
|
|
|
|
{
|
|
|
|
g_message (_("GIMP pattern file appears to be truncated: \"%s\"."),
|
|
|
|
filename);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
close (fd);
|
|
|
|
|
|
|
|
GIMP_OBJECT (pattern)->name = name;
|
|
|
|
|
|
|
|
pattern->filename = g_strdup (filename);
|
|
|
|
|
|
|
|
/* Swap the pattern to disk (if we're being stingy with memory) */
|
|
|
|
if (stingy_memory_use)
|
|
|
|
temp_buf_swap (pattern->mask);
|
|
|
|
|
|
|
|
return pattern;
|
|
|
|
|
|
|
|
error:
|
|
|
|
if (pattern)
|
|
|
|
gtk_object_unref (GTK_OBJECT (pattern));
|
|
|
|
else if (name)
|
|
|
|
g_free (name);
|
|
|
|
|
|
|
|
close (fd);
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
TempBuf *
|
|
|
|
gimp_pattern_get_mask (const GimpPattern *pattern)
|
|
|
|
{
|
|
|
|
g_return_val_if_fail (pattern != NULL, NULL);
|
|
|
|
g_return_val_if_fail (GIMP_IS_PATTERN (pattern), NULL);
|
|
|
|
|
|
|
|
return pattern->mask;
|
|
|
|
}
|