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2008-02-08 Emmanuele Bassi <ebassi@openedhand.com>

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* clutter/clutter-script.c:
	(resolve_alpha_func): Use a whitelist containing the alpha function
	provided by Clutter, as a fallback in case g_module_open() does not
	work.

	(clutter_script_parse_alpha): Add an explicit warning in case we
	cannot find the alpha function used inside a UI definition.
This commit is contained in:
Emmanuele Bassi 2008-02-08 10:19:53 +00:00
parent 60f162b7bf
commit 07eb790188
2 changed files with 72 additions and 6 deletions
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13
ChangeLog
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@ -1,7 +1,16 @@
2008-02-08 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-script.c:
(resolve_alpha_func): Use a whitelist containing the alpha function
provided by Clutter, as a fallback in case g_module_open() does not
work.
(clutter_script_parse_alpha): Add an explicit warning in case we
cannot find the alpha function used inside a UI definition.
2008-02-07 Tomas Frydrych <tf@openedhand.com> 2008-02-07 Tomas Frydrych <tf@openedhand.com>
* clutter/clutter-group.c: * clutter/clutter-group.c (clutter_group_query_coords):
(clutter_group_query_coords):
Take into account the anchor point when calculating the box size. Take into account the anchor point when calculating the box size.
2008-02-07 Emmanuele Bassi <ebassi@openedhand.com> 2008-02-07 Emmanuele Bassi <ebassi@openedhand.com>

65
clutter/clutter-script.c
View File

@ -496,6 +496,30 @@ construct_timeline (ClutterScript *script,
return retval; return retval;
} }
/* ugh. if g_module_open() fails (*cough* python *cough*) we need a fallback
* for finding at least our own functions.
*/
static const struct
{
const gchar *name;
ClutterAlphaFunc symbol;
} clutter_alphas[] = {
{ "clutter_ramp_inc_func", CLUTTER_ALPHA_RAMP_INC },
{ "clutter_ramp_dec_func", CLUTTER_ALPHA_RAMP_DEC },
{ "clutter_ramp_func", CLUTTER_ALPHA_RAMP },
{ "clutter_sine_inc_func", CLUTTER_ALPHA_SINE_INC },
{ "clutter_sine_dec_func", CLUTTER_ALPHA_SINE_DEC },
{ "clutter_sine_half_func", CLUTTER_ALPHA_SINE_HALF },
{ "clutter_sine_func", CLUTTER_ALPHA_SINE },
{ "clutter_square_func", CLUTTER_ALPHA_SQUARE },
{ "clutter_smoothstep_inc_func", CLUTTER_ALPHA_SMOOTHSTEP_INC },
{ "clutter_smoothstep_dec_func", CLUTTER_ALPHA_SMOOTHSTEP_DEC },
{ "clutter_exp_inc_func", CLUTTER_ALPHA_EXP_INC },
{ "clutter_exp_dec_func", CLUTTER_ALPHA_EXP_DEC }
};
static const gint n_clutter_alphas = G_N_ELEMENTS (clutter_alphas);
static ClutterAlphaFunc static ClutterAlphaFunc
resolve_alpha_func (const gchar *name) resolve_alpha_func (const gchar *name)
{ {
@ -505,12 +529,23 @@ resolve_alpha_func (const gchar *name)
gchar c, *symbol; gchar c, *symbol;
gint i; gint i;
CLUTTER_NOTE (SCRIPT, "Looking up `%s' alpha function", name);
for (i = 0; i < n_clutter_alphas; i++)
if (strcmp (name, clutter_alphas[i].name) == 0)
{
CLUTTER_NOTE (SCRIPT, "Found `%s' alpha function in the whitelist",
name);
return clutter_alphas[i].symbol;
}
if (G_UNLIKELY (!module)) if (G_UNLIKELY (!module))
module = g_module_open (NULL, G_MODULE_BIND_LAZY); module = g_module_open (NULL, G_MODULE_BIND_LAZY);
if (g_module_symbol (module, name, (gpointer) &func)) if (g_module_symbol (module, name, (gpointer) &func))
{ {
CLUTTER_NOTE (SCRIPT, "Found `%s' alpha function", name); CLUTTER_NOTE (SCRIPT, "Found `%s' alpha function in the symbols table",
name);
return func; return func;
} }
@ -526,12 +561,26 @@ resolve_alpha_func (const gchar *name)
g_string_append_c (symbol_name, g_ascii_tolower (name[i])); g_string_append_c (symbol_name, g_ascii_tolower (name[i]));
} }
g_string_append (symbol_name, "_func"); g_string_append (symbol_name, "_func");
symbol = g_string_free (symbol_name, FALSE); symbol = g_string_free (symbol_name, FALSE);
CLUTTER_NOTE (SCRIPT, "Looking `%s' alpha function", symbol);
for (i = 0; i < n_clutter_alphas; i++)
if (strcmp (symbol, clutter_alphas[i].name) == 0)
{
CLUTTER_NOTE (SCRIPT,
"Found `%s' (%s) alpha function in the whitelist",
name, symbol);
g_free (symbol);
return clutter_alphas[i].symbol;
}
if (g_module_symbol (module, symbol, (gpointer)&func)) if (g_module_symbol (module, symbol, (gpointer)&func))
{ {
CLUTTER_NOTE (SCRIPT, "Found `%s' alpha function", symbol); CLUTTER_NOTE (SCRIPT,
"Found `%s' (%s) alpha function in the symbols table",
name, symbol);
g_free (symbol); g_free (symbol);
return func; return func;
} }
@ -577,7 +626,15 @@ clutter_script_parse_alpha (ClutterScript *script,
val = json_object_get_member (object, "function"); val = json_object_get_member (object, "function");
if (val && json_node_get_string (val) != NULL) if (val && json_node_get_string (val) != NULL)
alpha_func = resolve_alpha_func (json_node_get_string (val)); {
alpha_func = resolve_alpha_func (json_node_get_string (val));
if (!alpha_func)
{
g_warning ("Unable to find the function `%s' in the "
"Clutter alpha functions or the symbols table",
json_node_get_string (val));
}
}
CLUTTER_NOTE (SCRIPT, "Parsed alpha: %s timeline (%p) and func:%p", CLUTTER_NOTE (SCRIPT, "Parsed alpha: %s timeline (%p) and func:%p",
unref_timeline ? "implicit" : "explicit", unref_timeline ? "implicit" : "explicit",