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GtkCssProvider: Add initial unit parsing logic

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At the moment only "px" are supported, and such is the default
value when no unit is specified.
This commit is contained in:
Carlos Garnacho 2010-11-13 03:55:21 +01:00
parent 65abcb722e
commit 5cb6fed0bd
1 changed files with 117 additions and 33 deletions
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150
gtk/gtkcssprovider.c
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@ -2303,6 +2303,120 @@ slice_parse (GtkCssProvider *css_provider,
return slice;
}
static gdouble
unit_parse_str (const gchar *str,
gchar **end_str)
{
gdouble unit;
SKIP_SPACES (str);
unit = g_strtod (str, end_str);
str = *end_str;
/* Now parse the unit type, if any. We
* don't admit spaces between these.
*/
if (*str != ' ' && *str != '\0')
{
while (**end_str != ' ' && **end_str != '\0')
(*end_str)++;
/* Only handle pixels at the moment */
if (strncmp (str, "px", 2) != 0)
{
gchar *type;
type = g_strndup (str, *end_str - str);
g_warning ("Unknown unit '%s', only pixel units are "
"currently supported in CSS style", type);
g_free (type);
}
}
return unit;
}
static GtkBorder *
border_parse_str (const gchar *str,
gchar **end_str)
{
gdouble first, second, third, fourth;
GtkBorder *border;
border = gtk_border_new ();
SKIP_SPACES (str);
if (!g_ascii_isdigit (*str))
return border;
first = unit_parse_str (str, end_str);
str = *end_str;
SKIP_SPACES (str);
if (!g_ascii_isdigit (*str))
{
border->left = border->right = border->top = border->bottom = (gint) first;
*end_str = (gchar *) str;
return border;
}
second = unit_parse_str (str, end_str);
str = *end_str;
SKIP_SPACES (str);
if (!g_ascii_isdigit (*str))
{
border->top = border->bottom = (gint) first;
border->left = border->right = (gint) second;
*end_str = (gchar *) str;
return border;
}
third = unit_parse_str (str, end_str);
str = *end_str;
SKIP_SPACES (str);
if (!g_ascii_isdigit (*str))
{
border->top = (gint) first;
border->left = border->right = (gint) second;
border->bottom = (gint) third;
*end_str = (gchar *) str;
return border;
}
fourth = unit_parse_str (str, end_str);
border->top = (gint) first;
border->right = (gint) second;
border->bottom = (gint) third;
border->left = (gint) fourth;
return border;
}
static GtkBorder *
border_parse (const gchar *str)
{
GtkBorder *border;
gchar *end;
border = border_parse_str (str, &end);
if (*end != '\0')
{
g_warning ("Error parsing border \"%s\", stopped at char %ld : '%c'",
str, end - str, *end);
if (border)
gtk_border_free (border);
return NULL;
}
return border;
}
static gboolean
css_provider_parse_value (GtkCssProvider *css_provider,
const gchar *value_str,
@ -2378,40 +2492,10 @@ css_provider_parse_value (GtkCssProvider *css_provider,
}
else if (type == GTK_TYPE_BORDER)
{
guint first, second, third, fourth;
GtkBorder border;
GtkBorder *border;
/* FIXME: no unit support */
if (sscanf (value_str, "%d %d %d %d",
&first, &second, &third, &fourth) == 4)
{
border.top = first;
border.right = second;
border.bottom = third;
border.left = fourth;
}
else if (sscanf (value_str, "%d %d %d",
&first, &second, &third) == 3)
{
border.top = first;
border.left = border.right = second;
border.bottom = third;
}
else if (sscanf (value_str, "%d %d", &first, &second) == 2)
{
border.top = border.bottom = first;
border.left = border.right = second;
}
else if (sscanf (value_str, "%d", &first) == 1)
{
border.top = border.bottom = first;
border.left = border.right = first;
}
else
parsed = FALSE;
if (parsed)
g_value_set_boxed (value, &border);
border = border_parse (value_str);
g_value_take_boxed (value, border);
}
else if (type == CAIRO_GOBJECT_TYPE_PATTERN)
{