GtkSymbolicColor *
_gtk_css_symbolic_value_new (GtkCssParser *parser)
{
GtkCssValue *value;
value = _gtk_css_color_value_parse (parser);
if (value == NULL)
return NULL;
return gtk_symbolic_color_new (value);
}
static gboolean
gtk_css_image_radial_parse (GtkCssImage *image,
GtkCssParser *parser)
{
GtkCssImageRadial *radial = GTK_CSS_IMAGE_RADIAL (image);
gboolean has_shape = FALSE;
gboolean has_size = FALSE;
gboolean found_one = FALSE;
guint i;
static struct {
const char *name;
guint value;
} names[] = {
{ "closest-side", GTK_CSS_CLOSEST_SIDE },
{ "farthest-side", GTK_CSS_FARTHEST_SIDE },
{ "closest-corner", GTK_CSS_CLOSEST_CORNER },
{ "farthest-corner", GTK_CSS_FARTHEST_CORNER }
};
if (_gtk_css_parser_try (parser, "repeating-radial-gradient(", TRUE))
radial->repeating = TRUE;
else if (_gtk_css_parser_try (parser, "radial-gradient(", TRUE))
radial->repeating = FALSE;
else
{
_gtk_css_parser_error (parser, "Not a radial gradient");
return FALSE;
}
do {
found_one = FALSE;
if (!has_shape && _gtk_css_parser_try (parser, "circle", TRUE))
{
radial->circle = TRUE;
found_one = has_shape = TRUE;
}
else if (!has_shape && _gtk_css_parser_try (parser, "ellipse", TRUE))
{
radial->circle = FALSE;
found_one = has_shape = TRUE;
}
else if (!has_size)
{
for (i = 0; i < G_N_ELEMENTS (names); i++)
{
if (_gtk_css_parser_try (parser, names[i].name, TRUE))
{
found_one = has_size = TRUE;
radial->size = names[i].value;
break;
}
}
if (!has_size)
{
if (_gtk_css_parser_has_number (parser))
radial->sizes[0] = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH | GTK_CSS_PARSE_PERCENT);
if (_gtk_css_parser_has_number (parser))
radial->sizes[1] = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH | GTK_CSS_PARSE_PERCENT);
found_one = has_size = radial->sizes[0] != NULL;
}
}
} while (found_one && !(has_shape && has_size));
if (_gtk_css_parser_try (parser, "at", TRUE))
{
radial->position = _gtk_css_position_value_parse (parser);
if (!radial->position)
return FALSE;
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected a comma here");
return FALSE;
}
}
else
{
radial->position = _gtk_css_position_value_new (_gtk_css_number_value_new (50, GTK_CSS_PERCENT),
_gtk_css_number_value_new (50, GTK_CSS_PERCENT));
if ((has_shape || has_size) &&
!_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected a comma here");
return FALSE;
}
}
if (!has_size)
{
radial->size = GTK_CSS_FARTHEST_CORNER;
}
if (!has_shape)
{
if (radial->sizes[0] && radial->sizes[1])
radial->circle = FALSE;
else
radial->circle = TRUE;
}
if (has_shape && radial->circle)
{
if (radial->sizes[0] && radial->sizes[1])
{
_gtk_css_parser_error (parser, "Circular gradient can only have one size");
return FALSE;
}
if (radial->sizes[0] && _gtk_css_number_value_get_unit (radial->sizes[0]) == GTK_CSS_PERCENT)
{
_gtk_css_parser_error (parser, "Circular gradient cannot have percentage as size");
return FALSE;
}
}
if (has_size && !radial->circle)
{
if (!radial->sizes[1])
radial->sizes[1] = _gtk_css_value_ref (radial->sizes[0]);
}
do {
GtkCssImageRadialColorStop stop;
stop.color = _gtk_css_color_value_parse (parser);
if (stop.color == NULL)
return FALSE;
if (_gtk_css_parser_has_number (parser))
{
stop.offset = _gtk_css_number_value_parse (parser,
GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH);
if (stop.offset == NULL)
{
_gtk_css_value_unref (stop.color);
return FALSE;
}
}
else
{
stop.offset = NULL;
}
g_array_append_val (radial->stops, stop);
} while (_gtk_css_parser_try (parser, ",", TRUE));
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser, "Missing closing bracket at end of radial gradient");
return FALSE;
}
return TRUE;
}
static gboolean
gtk_css_image_linear_parse (GtkCssImage *image,
GtkCssParser *parser)
{
GtkCssImageLinear *linear = GTK_CSS_IMAGE_LINEAR (image);
guint i;
if (_gtk_css_parser_try (parser, "repeating-linear-gradient(", TRUE))
linear->repeating = TRUE;
else if (_gtk_css_parser_try (parser, "linear-gradient(", TRUE))
linear->repeating = FALSE;
else
{
_gtk_css_parser_error (parser, "Not a linear gradient");
return FALSE;
}
if (_gtk_css_parser_try (parser, "to", TRUE))
{
for (i = 0; i < 2; i++)
{
if (_gtk_css_parser_try (parser, "left", TRUE))
{
if (linear->side & ((1 << GTK_CSS_LEFT) | (1 << GTK_CSS_RIGHT)))
{
_gtk_css_parser_error (parser, "Expected 'top', 'bottom' or comma");
return FALSE;
}
linear->side |= (1 << GTK_CSS_LEFT);
}
else if (_gtk_css_parser_try (parser, "right", TRUE))
{
if (linear->side & ((1 << GTK_CSS_LEFT) | (1 << GTK_CSS_RIGHT)))
{
_gtk_css_parser_error (parser, "Expected 'top', 'bottom' or comma");
return FALSE;
}
linear->side |= (1 << GTK_CSS_RIGHT);
}
else if (_gtk_css_parser_try (parser, "top", TRUE))
{
if (linear->side & ((1 << GTK_CSS_TOP) | (1 << GTK_CSS_BOTTOM)))
{
_gtk_css_parser_error (parser, "Expected 'left', 'right' or comma");
return FALSE;
}
linear->side |= (1 << GTK_CSS_TOP);
}
else if (_gtk_css_parser_try (parser, "bottom", TRUE))
{
if (linear->side & ((1 << GTK_CSS_TOP) | (1 << GTK_CSS_BOTTOM)))
{
_gtk_css_parser_error (parser, "Expected 'left', 'right' or comma");
return FALSE;
}
linear->side |= (1 << GTK_CSS_BOTTOM);
}
else
break;
}
if (linear->side == 0)
{
_gtk_css_parser_error (parser, "Expected side that gradient should go to");
return FALSE;
}
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected a comma");
return FALSE;
}
}
else if (gtk_css_number_value_can_parse (parser))
{
linear->angle = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
if (linear->angle == NULL)
return FALSE;
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected a comma");
return FALSE;
}
}
else
linear->side = 1 << GTK_CSS_BOTTOM;
do {
GtkCssImageLinearColorStop stop;
stop.color = _gtk_css_color_value_parse (parser);
if (stop.color == NULL)
return FALSE;
if (gtk_css_number_value_can_parse (parser))
{
stop.offset = _gtk_css_number_value_parse (parser,
GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH);
if (stop.offset == NULL)
{
_gtk_css_value_unref (stop.color);
return FALSE;
}
}
else
{
stop.offset = NULL;
}
g_array_append_val (linear->stops, stop);
} while (_gtk_css_parser_try (parser, ",", TRUE));
if (linear->stops->len < 2)
{
_gtk_css_parser_error_full (parser,
GTK_CSS_PROVIDER_ERROR_DEPRECATED,
"Using one color stop with %s() is deprecated.",
linear->repeating ? "repeating-linear-gradient" : "linear-gradient");
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser, "Missing closing bracket at end of linear gradient");
return FALSE;
}
return TRUE;
}
