static GtkCssValue *
gtk_css_ease_value_parse_cubic_bezier (GtkCssParser *parser)
{
double values[4];
guint i;
for (i = 0; i < 4; i++)
{
if (!_gtk_css_parser_try (parser, i ? "," : "(", TRUE))
{
_gtk_css_parser_error (parser, "Expected '%s'", i ? "," : "(");
return NULL;
}
if (!_gtk_css_parser_try_double (parser, &values[i]))
{
_gtk_css_parser_error (parser, "Expected a number");
return NULL;
}
if ((i == 0 || i == 2) &&
(values[i] < 0 || values[i] > 1.0))
{
_gtk_css_parser_error (parser, "value %g out of range. Must be from 0.0 to 1.0", values[i]);
return NULL;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser, "Missing closing ')' for cubic-bezier");
return NULL;
}
return _gtk_css_ease_value_new_cubic_bezier (values[0], values[1], values[2], values[3]);
}
static gboolean
float_value_parse (GtkCssParser *parser,
GValue *value)
{
gdouble d;
if (!_gtk_css_parser_try_double (parser, &d))
{
_gtk_css_parser_error (parser, "Expected a number");
return FALSE;
}
g_value_set_float (value, d);
return TRUE;
}
GtkGradient *
_gtk_gradient_parse (GtkCssParser *parser)
{
GtkGradient *gradient;
cairo_pattern_type_t type;
gdouble coords[6];
guint i;
g_return_val_if_fail (parser != NULL, NULL);
if (!_gtk_css_parser_try (parser, "-gtk-gradient", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '-gtk-gradient'");
return NULL;
}
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after '-gtk-gradient'");
return NULL;
}
/* Parse gradient type */
if (_gtk_css_parser_try (parser, "linear", TRUE))
type = CAIRO_PATTERN_TYPE_LINEAR;
else if (_gtk_css_parser_try (parser, "radial", TRUE))
type = CAIRO_PATTERN_TYPE_RADIAL;
else
{
_gtk_css_parser_error (parser,
"Gradient type must be 'radial' or 'linear'");
return NULL;
}
/* Parse start/stop position parameters */
for (i = 0; i < 2; i++)
{
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ','");
return NULL;
}
if (_gtk_css_parser_try (parser, "left", TRUE))
coords[i * 3] = 0;
else if (_gtk_css_parser_try (parser, "right", TRUE))
coords[i * 3] = 1;
else if (_gtk_css_parser_try (parser, "center", TRUE))
coords[i * 3] = 0.5;
else if (!_gtk_css_parser_try_double (parser, &coords[i * 3]))
{
_gtk_css_parser_error (parser,
"Expected a valid X coordinate");
return NULL;
}
if (_gtk_css_parser_try (parser, "top", TRUE))
coords[i * 3 + 1] = 0;
else if (_gtk_css_parser_try (parser, "bottom", TRUE))
coords[i * 3 + 1] = 1;
else if (_gtk_css_parser_try (parser, "center", TRUE))
coords[i * 3 + 1] = 0.5;
else if (!_gtk_css_parser_try_double (parser, &coords[i * 3 + 1]))
{
_gtk_css_parser_error (parser,
"Expected a valid Y coordinate");
return NULL;
}
if (type == CAIRO_PATTERN_TYPE_RADIAL)
{
/* Parse radius */
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ','");
return NULL;
}
if (! _gtk_css_parser_try_double (parser, &coords[(i * 3) + 2]))
{
_gtk_css_parser_error (parser,
"Expected a numer for the radius");
return NULL;
}
}
}
if (type == CAIRO_PATTERN_TYPE_LINEAR)
gradient = gtk_gradient_new_linear (coords[0], coords[1], coords[3], coords[4]);
else
gradient = gtk_gradient_new_radial (coords[0], coords[1], coords[2],
coords[3], coords[4], coords[5]);
while (_gtk_css_parser_try (parser, ",", TRUE))
{
GtkSymbolicColor *color;
gdouble position;
if (_gtk_css_parser_try (parser, "from", TRUE))
{
position = 0;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected '('");
return NULL;
}
}
else if (_gtk_css_parser_try (parser, "to", TRUE))
{
position = 1;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected '('");
return NULL;
}
}
else if (_gtk_css_parser_try (parser, "color-stop", TRUE))
{
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected '('");
return NULL;
}
if (!_gtk_css_parser_try_double (parser, &position))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected a valid number");
return NULL;
}
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected a comma");
return NULL;
}
}
else
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Not a valid color-stop definition");
return NULL;
}
color = _gtk_css_parser_read_symbolic_color (parser);
if (color == NULL)
{
gtk_gradient_unref (gradient);
return NULL;
}
gtk_gradient_add_color_stop (gradient, position, color);
gtk_symbolic_color_unref (color);
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected ')'");
return NULL;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected ')'");
return NULL;
}
return gradient;
}
static GtkSymbolicColor *
gtk_css_parser_read_symbolic_color_function (GtkCssParser *parser,
ColorType color)
{
GtkSymbolicColor *symbolic;
GtkSymbolicColor *child1, *child2;
double value;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser, "Missing opening bracket in color definition");
return NULL;
}
if (color == COLOR_RGB || color == COLOR_RGBA)
{
GdkRGBA rgba;
double tmp;
guint i;
for (i = 0; i < 3; i++)
{
if (i > 0 && !_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ',' in color definition");
return NULL;
}
if (!_gtk_css_parser_try_double (parser, &tmp))
{
_gtk_css_parser_error (parser, "Invalid number for color value");
return NULL;
}
if (_gtk_css_parser_try (parser, "%", TRUE))
tmp /= 100.0;
else
tmp /= 255.0;
if (i == 0)
rgba.red = tmp;
else if (i == 1)
rgba.green = tmp;
else if (i == 2)
rgba.blue = tmp;
else
g_assert_not_reached ();
}
if (color == COLOR_RGBA)
{
if (i > 0 && !_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ',' in color definition");
return NULL;
}
if (!_gtk_css_parser_try_double (parser, &rgba.alpha))
{
_gtk_css_parser_error (parser, "Invalid number for alpha value");
return NULL;
}
}
else
rgba.alpha = 1.0;
symbolic = gtk_symbolic_color_new_literal (&rgba);
}
else if (color == COLOR_WIN32)
{
symbolic = _gtk_win32_theme_color_parse (parser);
if (symbolic == NULL)
return NULL;
}
else
{
child1 = _gtk_css_parser_read_symbolic_color (parser);
if (child1 == NULL)
return NULL;
if (color == COLOR_MIX)
{
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ',' in color definition");
gtk_symbolic_color_unref (child1);
return NULL;
}
child2 = _gtk_css_parser_read_symbolic_color (parser);
if (child2 == NULL)
{
gtk_symbolic_color_unref (child1);
return NULL;
}
}
else
child2 = NULL;
if (color == COLOR_LIGHTER)
value = 1.3;
else if (color == COLOR_DARKER)
value = 0.7;
else
{
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ',' in color definition");
gtk_symbolic_color_unref (child1);
if (child2)
gtk_symbolic_color_unref (child2);
return NULL;
}
if (!_gtk_css_parser_try_double (parser, &value))
{
_gtk_css_parser_error (parser, "Expected number in color definition");
gtk_symbolic_color_unref (child1);
if (child2)
gtk_symbolic_color_unref (child2);
return NULL;
}
}
switch (color)
{
case COLOR_LIGHTER:
case COLOR_DARKER:
case COLOR_SHADE:
symbolic = gtk_symbolic_color_new_shade (child1, value);
break;
case COLOR_ALPHA:
symbolic = gtk_symbolic_color_new_alpha (child1, value);
break;
case COLOR_MIX:
symbolic = gtk_symbolic_color_new_mix (child1, child2, value);
break;
default:
g_assert_not_reached ();
symbolic = NULL;
}
gtk_symbolic_color_unref (child1);
if (child2)
gtk_symbolic_color_unref (child2);
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser, "Expected ')' in color definition");
gtk_symbolic_color_unref (symbolic);
return NULL;
}
return symbolic;
}
static gboolean
gtk_css_image_win32_parse (GtkCssImage *image,
GtkCssParser *parser)
{
GtkCssImageWin32 *wimage = GTK_CSS_IMAGE_WIN32 (image);
if (!_gtk_css_parser_try (parser, "-gtk-win32-theme-part", TRUE))
{
_gtk_css_parser_error (parser, "'-gtk-win32-theme-part'");
return FALSE;
}
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after '-gtk-win32-theme-part'");
return FALSE;
}
wimage->theme = gtk_win32_theme_parse (parser);
if (wimage->theme == NULL)
return FALSE;
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ','");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->part))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ','");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->state))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
while ( _gtk_css_parser_try (parser, ",", TRUE))
{
if ( _gtk_css_parser_try (parser, "over", TRUE))
{
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after 'over'");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->part2))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ','");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->state2))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
if ( _gtk_css_parser_try (parser, ",", TRUE))
{
if (!_gtk_css_parser_try_double (parser, &wimage->over_alpha))
{
_gtk_css_parser_error (parser, "Expected a valid double value");
return FALSE;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ')' at end of 'over'");
return FALSE;
}
}
else if ( _gtk_css_parser_try (parser, "margins", TRUE))
{
guint i;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after 'margins'");
return FALSE;
}
for (i = 0; i < 4; i++)
{
if (!_gtk_css_parser_try_int (parser, &wimage->margins[i]))
break;
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected valid margins");
return FALSE;
}
if (i == 1)
wimage->margins[1] = wimage->margins[0];
if (i <= 2)
wimage->margins[2] = wimage->margins[1];
if (i <= 3)
wimage->margins[3] = wimage->margins[2];
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ')' at end of 'margins'");
return FALSE;
}
}
else
{
_gtk_css_parser_error (parser,
"Expected identifier");
return FALSE;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ')'");
return FALSE;
}
return TRUE;
}
static gboolean
slice_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
gdouble distance_top, distance_bottom;
gdouble distance_left, distance_right;
GtkSliceSideModifier mods[2];
GdkPixbuf *pixbuf;
Gtk9Slice *slice;
GFile *file;
GError *error = NULL;
gint i;
char *path;
/* Parse image url */
file = _gtk_css_parse_url (parser, base);
if (!file)
return FALSE;
if (!_gtk_css_parser_try_double (parser, &distance_top) ||
!_gtk_css_parser_try_double (parser, &distance_right) ||
!_gtk_css_parser_try_double (parser, &distance_bottom) ||
!_gtk_css_parser_try_double (parser, &distance_left))
{
_gtk_css_parser_error (parser, "Expected a number");
g_object_unref (file);
return FALSE;
}
for (i = 0; i < 2; i++)
{
if (_gtk_css_parser_try (parser, "stretch", TRUE))
mods[i] = GTK_SLICE_STRETCH;
else if (_gtk_css_parser_try (parser, "repeat", TRUE))
mods[i] = GTK_SLICE_REPEAT;
else if (i == 0)
{
mods[1] = mods[0] = GTK_SLICE_STRETCH;
break;
}
else
mods[i] = mods[0];
}
path = g_file_get_path (file);
g_object_unref (file);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
g_free (path);
if (!pixbuf)
{
_gtk_css_parser_take_error (parser, error);
return FALSE;
}
slice = _gtk_9slice_new (pixbuf,
distance_top, distance_bottom,
distance_left, distance_right,
mods[0], mods[1]);
g_object_unref (pixbuf);
g_value_take_boxed (value, slice);
return TRUE;
}
