static void
gimp_brush_editor_update_brush (GtkAdjustment *adjustment,
GimpBrushEditor *editor)
{
GimpBrushGenerated *brush;
gdouble radius;
gint spikes;
gdouble hardness;
gdouble ratio;
gdouble angle;
gdouble spacing;
if (! GIMP_IS_BRUSH_GENERATED (GIMP_DATA_EDITOR (editor)->data))
return;
brush = GIMP_BRUSH_GENERATED (GIMP_DATA_EDITOR (editor)->data);
radius = gtk_adjustment_get_value (editor->radius_data);
spikes = ROUND (gtk_adjustment_get_value (editor->spikes_data));
hardness = gtk_adjustment_get_value (editor->hardness_data);
ratio = gtk_adjustment_get_value (editor->aspect_ratio_data);
angle = gtk_adjustment_get_value (editor->angle_data);
spacing = gtk_adjustment_get_value (editor->spacing_data);
if (radius != gimp_brush_generated_get_radius (brush) ||
spikes != gimp_brush_generated_get_spikes (brush) ||
hardness != gimp_brush_generated_get_hardness (brush) ||
ratio != gimp_brush_generated_get_aspect_ratio (brush) ||
angle != gimp_brush_generated_get_angle (brush) ||
spacing != gimp_brush_get_spacing (GIMP_BRUSH (brush)))
{
g_signal_handlers_block_by_func (brush,
gimp_brush_editor_notify_brush,
editor);
gimp_data_freeze (GIMP_DATA (brush));
g_object_freeze_notify (G_OBJECT (brush));
gimp_brush_generated_set_radius (brush, radius);
gimp_brush_generated_set_spikes (brush, spikes);
gimp_brush_generated_set_hardness (brush, hardness);
gimp_brush_generated_set_aspect_ratio (brush, ratio);
gimp_brush_generated_set_angle (brush, angle);
gimp_brush_set_spacing (GIMP_BRUSH (brush), spacing);
g_object_thaw_notify (G_OBJECT (brush));
gimp_data_thaw (GIMP_DATA (brush));
g_signal_handlers_unblock_by_func (brush,
gimp_brush_editor_notify_brush,
editor);
}
}
static GValueArray *
brushes_set_spacing_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args)
{
gboolean success = TRUE;
gint32 spacing;
spacing = g_value_get_int (&args->values[0]);
if (success)
{
gimp_brush_set_spacing (gimp_context_get_brush (context), spacing);
}
return gimp_procedure_get_return_values (procedure, success);
}
GList *
gimp_brush_generated_load (GimpContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
GimpBrush *brush;
GDataInputStream *data_input;
gchar *string;
gsize string_len;
gint linenum;
gchar *name = NULL;
GimpBrushGeneratedShape shape = GIMP_BRUSH_GENERATED_CIRCLE;
gboolean have_shape = FALSE;
gint spikes = 2;
gdouble spacing;
gdouble radius;
gdouble hardness;
gdouble aspect_ratio;
gdouble angle;
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);
data_input = g_data_input_stream_new (input);
/* make sure the file we are reading is the right type */
linenum = 1;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
if (! g_str_has_prefix (string, "GIMP-VBR"))
{
g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
_("Not a GIMP brush file."));
g_free (string);
goto failed;
}
g_free (string);
/* make sure we are reading a compatible version */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
if (! g_str_has_prefix (string, "1.0"))
{
if (! g_str_has_prefix (string, "1.5"))
{
g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
_("Unknown GIMP brush version."));
g_free (string);
goto failed;
}
else
{
have_shape = TRUE;
}
}
g_free (string);
/* read name */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
g_strstrip (string);
/* the empty string is not an allowed name */
if (strlen (string) < 1)
{
name = g_strdup (_("Untitled"));
}
else
{
name = gimp_any_to_utf8 (string, -1,
_("Invalid UTF-8 string in brush file '%s'."),
gimp_file_get_utf8_name (file));
}
g_free (string);
if (have_shape)
{
GEnumClass *enum_class;
GEnumValue *shape_val;
enum_class = g_type_class_peek (GIMP_TYPE_BRUSH_GENERATED_SHAPE);
/* read shape */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
g_strstrip (string);
shape_val = g_enum_get_value_by_nick (enum_class, string);
if (! shape_val)
{
g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
_("Unknown GIMP brush shape."));
g_free (string);
goto failed;
}
g_free (string);
shape = shape_val->value;
}
/* read brush spacing */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
spacing = g_ascii_strtod (string, NULL);
g_free (string);
/* read brush radius */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
radius = g_ascii_strtod (string, NULL);
g_free (string);
if (have_shape)
{
/* read number of spikes */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
spikes = CLAMP (atoi (string), 2, 20);
g_free (string);
}
/* read brush hardness */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
hardness = g_ascii_strtod (string, NULL);
g_free (string);
/* read brush aspect_ratio */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
aspect_ratio = g_ascii_strtod (string, NULL);
g_free (string);
/* read brush angle */
linenum++;
string_len = 256;
string = g_data_input_stream_read_line (data_input, &string_len,
NULL, error);
if (! string)
goto failed;
angle = g_ascii_strtod (string, NULL);
g_free (string);
g_object_unref (data_input);
brush = GIMP_BRUSH (gimp_brush_generated_new (name, shape, radius, spikes,
hardness, aspect_ratio, angle));
g_free (name);
gimp_brush_set_spacing (brush, spacing);
return g_list_prepend (NULL, brush);
failed:
g_object_unref (data_input);
if (name)
g_free (name);
g_prefix_error (error, _("In line %d of brush file: "), linenum);
return NULL;
}
