static void
colorsel_cmyk_adj_update (GtkAdjustment *adj,
ColorselCmyk *module)
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (module);
gint i;
gdouble value;
for (i = 0; i < 4; i++)
if (module->adj[i] == adj)
break;
value = gtk_adjustment_get_value (adj) / 100.0;
switch (i)
{
case 0:
module->cmyk.c = value;
break;
case 1:
module->cmyk.m = value;
break;
case 2:
module->cmyk.y = value;
break;
case 3:
module->cmyk.k = value;
break;
default:
return;
}
if (module->cmyk2rgb)
{
gdouble cmyk_values[4];
gdouble rgb_values[3];
cmyk_values[0] = module->cmyk.c * 100.0;
cmyk_values[1] = module->cmyk.m * 100.0;
cmyk_values[2] = module->cmyk.y * 100.0;
cmyk_values[3] = module->cmyk.k * 100.0;
cmsDoTransform (module->cmyk2rgb, cmyk_values, rgb_values, 1);
selector->rgb.r = rgb_values[0];
selector->rgb.g = rgb_values[1];
selector->rgb.b = rgb_values[2];
}
else
{
gimp_cmyk_to_rgb (&module->cmyk, &selector->rgb);
}
gimp_rgb_to_hsv (&selector->rgb, &selector->hsv);
gimp_color_selector_color_changed (selector);
}
static VALUE
rb_gimp_cmyk_to_rgb (VALUE self,
VALUE cmyk)
{
GimpRGB rgb;
gimp_cmyk_to_rgb(rb2GimpCMYKPtr(cmyk), &rgb);
return GimpRGB2rb(&rgb);
}
GList *
gimp_palette_load_aco (const gchar *filename,
GError **error)
{
GimpPalette *palette;
gchar *palette_name;
gint fd;
gint format_version;
gint number_of_colors;
gint i;
gchar header[4];
gchar color_info[10];
gchar format2_preamble[4];
gint status;
g_return_val_if_fail (filename != NULL, NULL);
g_return_val_if_fail (g_path_is_absolute (filename), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
fd = g_open (filename, O_RDONLY | _O_BINARY, 0);
if (! fd)
{
g_set_error (error,
G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return NULL;
}
palette_name = g_filename_display_basename (filename);
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
g_free (palette_name);
status = read(fd, header, sizeof (header));
if (status < 0)
{
close(fd);
return g_list_prepend (NULL, palette);
}
format_version = header[1] + (header[0] << 8);
number_of_colors = header[3] + (header[2] << 8);
for (i = 0; i < number_of_colors; i++)
{
gint color_space;
gint w, x, y, z;
gboolean color_ok = FALSE;
GimpRGB color;
read (fd, color_info, sizeof (color_info));
color_space = color_info[1] + (color_info[0] << 8);
w = (guchar) color_info[3] + ((guchar) color_info[2] << 8);
x = (guchar) color_info[5] + ((guchar) color_info[4] << 8);
y = (guchar) color_info[7] + ((guchar) color_info[6] << 8);
z = (guchar) color_info[9] + ((guchar) color_info[8] << 8);
if (color_space == 0) /* RGB */
{
gdouble R = ((gdouble) w) / 65536.0;
gdouble G = ((gdouble) x) / 65536.0;
gdouble B = ((gdouble) y) / 65536.0;
gimp_rgba_set (&color, R, G, B, 1.0);
color_ok = TRUE;
}
else if (color_space == 1) /* HSV */
{
GimpHSV hsv;
gdouble H = ((gdouble) w) / 65536.0;
gdouble S = ((gdouble) x) / 65536.0;
gdouble V = ((gdouble) y) / 65536.0;
gimp_hsva_set (&hsv, H, S, V, 1.0);
gimp_hsv_to_rgb (&hsv, &color);
color_ok = TRUE;
}
else if (color_space == 2) /* CMYK */
{
GimpCMYK cmyk;
gdouble C = 1.0 - (((gdouble) w) / 65536.0);
gdouble M = 1.0 - (((gdouble) x) / 65536.0);
gdouble Y = 1.0 - (((gdouble) y) / 65536.0);
gdouble K = 1.0 - (((gdouble) z) / 65536.0);
gimp_cmyka_set (&cmyk, C, M, Y, K, 1.0);
gimp_cmyk_to_rgb (&cmyk, &color);
color_ok = TRUE;
}
else if (color_space == 8) /* Grayscale */
{
gdouble K = 1.0 - (((gdouble) w) / 10000.0);
gimp_rgba_set (&color, K, K, K, 1.0);
color_ok = TRUE;
}
else if (color_space == 9) /* Wide? CMYK */
{
GimpCMYK cmyk;
gdouble C = 1.0 - (((gdouble) w) / 10000.0);
gdouble M = 1.0 - (((gdouble) x) / 10000.0);
gdouble Y = 1.0 - (((gdouble) y) / 10000.0);
gdouble K = 1.0 - (((gdouble) z) / 10000.0);
gimp_cmyka_set (&cmyk, C, M, Y, K, 1.0);
gimp_cmyk_to_rgb (&cmyk, &color);
color_ok = TRUE;
}
else
{
g_printerr ("Unsupported color space (%d) in ACO file %s\n",
color_space, gimp_filename_to_utf8 (filename));
}
if (format_version == 2)
{
gint number_of_chars;
read (fd, format2_preamble, sizeof (format2_preamble));
number_of_chars = format2_preamble[3] + (format2_preamble[2] << 8);
lseek (fd, number_of_chars * 2, SEEK_SET);
}
if (color_ok)
gimp_palette_add_entry (palette, -1, NULL, &color);
}
close(fd);
return g_list_prepend (NULL, palette);
}
GList *
gimp_palette_load_aco (GimpContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
GimpPalette *palette;
gchar *palette_name;
gint format_version;
gint number_of_colors;
gint i;
gchar header[4];
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);
if (! g_input_stream_read_all (input, header, sizeof (header),
&bytes_read, NULL, error) ||
bytes_read != sizeof (header))
{
g_prefix_error (error,
_("Could not read header from palette file '%s': "),
gimp_file_get_utf8_name (file));
return NULL;
}
palette_name = g_path_get_basename (gimp_file_get_utf8_name (file));
palette = GIMP_PALETTE (gimp_palette_new (context, palette_name));
g_free (palette_name);
format_version = header[1] + (header[0] << 8);
number_of_colors = header[3] + (header[2] << 8);
for (i = 0; i < number_of_colors; i++)
{
gchar color_info[10];
gint color_space;
gint w, x, y, z;
gboolean color_ok = FALSE;
GimpRGB color;
GError *my_error = NULL;
if (! g_input_stream_read_all (input, color_info, sizeof (color_info),
&bytes_read, NULL, &my_error) ||
bytes_read != sizeof (color_info))
{
if (palette->colors)
{
g_message (_("Reading palette file '%s': "
"Read %d colors from truncated file: %s"),
gimp_file_get_utf8_name (file),
g_list_length (palette->colors),
my_error ?
my_error->message : _("Premature end of file."));
g_clear_error (&my_error);
break;
}
g_propagate_error (error, my_error);
g_object_unref (palette);
return NULL;
}
color_space = color_info[1] + (color_info[0] << 8);
w = (guchar) color_info[3] + ((guchar) color_info[2] << 8);
x = (guchar) color_info[5] + ((guchar) color_info[4] << 8);
y = (guchar) color_info[7] + ((guchar) color_info[6] << 8);
z = (guchar) color_info[9] + ((guchar) color_info[8] << 8);
if (color_space == 0) /* RGB */
{
gdouble R = ((gdouble) w) / 65536.0;
gdouble G = ((gdouble) x) / 65536.0;
gdouble B = ((gdouble) y) / 65536.0;
gimp_rgba_set (&color, R, G, B, 1.0);
color_ok = TRUE;
}
else if (color_space == 1) /* HSV */
{
GimpHSV hsv;
gdouble H = ((gdouble) w) / 65536.0;
gdouble S = ((gdouble) x) / 65536.0;
gdouble V = ((gdouble) y) / 65536.0;
gimp_hsva_set (&hsv, H, S, V, 1.0);
gimp_hsv_to_rgb (&hsv, &color);
color_ok = TRUE;
}
else if (color_space == 2) /* CMYK */
{
GimpCMYK cmyk;
gdouble C = 1.0 - (((gdouble) w) / 65536.0);
gdouble M = 1.0 - (((gdouble) x) / 65536.0);
gdouble Y = 1.0 - (((gdouble) y) / 65536.0);
gdouble K = 1.0 - (((gdouble) z) / 65536.0);
gimp_cmyka_set (&cmyk, C, M, Y, K, 1.0);
gimp_cmyk_to_rgb (&cmyk, &color);
color_ok = TRUE;
}
else if (color_space == 8) /* Grayscale */
{
gdouble K = 1.0 - (((gdouble) w) / 10000.0);
gimp_rgba_set (&color, K, K, K, 1.0);
color_ok = TRUE;
}
else if (color_space == 9) /* Wide? CMYK */
{
GimpCMYK cmyk;
gdouble C = 1.0 - (((gdouble) w) / 10000.0);
gdouble M = 1.0 - (((gdouble) x) / 10000.0);
gdouble Y = 1.0 - (((gdouble) y) / 10000.0);
gdouble K = 1.0 - (((gdouble) z) / 10000.0);
gimp_cmyka_set (&cmyk, C, M, Y, K, 1.0);
gimp_cmyk_to_rgb (&cmyk, &color);
color_ok = TRUE;
}
else
{
g_printerr ("Unsupported color space (%d) in ACO file %s\n",
color_space, gimp_file_get_utf8_name (file));
}
if (format_version == 2)
{
gchar format2_preamble[4];
gint number_of_chars;
if (! g_input_stream_read_all (input,
format2_preamble,
sizeof (format2_preamble),
&bytes_read, NULL, error) ||
bytes_read != sizeof (format2_preamble))
{
g_object_unref (palette);
return NULL;
}
number_of_chars = format2_preamble[3] + (format2_preamble[2] << 8);
if (! g_seekable_seek (G_SEEKABLE (input), number_of_chars * 2,
G_SEEK_SET, NULL, error))
{
g_object_unref (palette);
return NULL;
}
}
if (color_ok)
gimp_palette_add_entry (palette, -1, NULL, &color);
}
return g_list_prepend (NULL, palette);
}
