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stylecontext: Don't clear cache when only state changes

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This takes more memory, but changes to backdrop or active state are
quite expensive otherwise.
This commit is contained in:
Benjamin Otte 2012-03-24 02:15:41 +01:00
parent 44187ca3b5
commit d5a2392cc7
1 changed files with 32 additions and 19 deletions
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51
gtk/gtkstylecontext.c
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@ -304,6 +304,9 @@
/* When these change we do a full restyling. Otherwise we try to figure out
* if we need to change things. */
#define GTK_STYLE_CONTEXT_RADICAL_CHANGE (GTK_CSS_CHANGE_NAME | GTK_CSS_CHANGE_CLASS)
/* When these change we don't clear the cache. This takes more memory but makes
* things go faster. */
#define GTK_STYLE_CONTEXT_CACHED_CHANGE (GTK_CSS_CHANGE_STATE)
typedef struct GtkStyleInfo GtkStyleInfo;
typedef struct GtkRegion GtkRegion;
@ -3268,6 +3271,31 @@ store_animation_region (GtkStyleContext *context,
}
}
static void
gtk_style_context_do_invalidate (GtkStyleContext *context,
gboolean clear_caches)
{
GtkStyleContextPrivate *priv;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
/* Avoid reentrancy */
if (priv->invalidating_context)
return;
priv->invalidating_context = TRUE;
if (clear_caches)
g_hash_table_remove_all (priv->style_data);
priv->current_data = NULL;
g_signal_emit (context, signals[CHANGED], 0);
priv->invalidating_context = FALSE;
}
void
_gtk_style_context_validate (GtkStyleContext *context,
GtkCssChange change)
@ -3312,7 +3340,9 @@ _gtk_style_context_validate (GtkStyleContext *context,
if (priv->relevant_changes & change)
{
gtk_style_context_invalidate (context);
gboolean clear_cache = ((priv->relevant_changes & change) & ~GTK_STYLE_CONTEXT_CACHED_CHANGE) != 0;
gtk_style_context_do_invalidate (context, clear_cache);
}
change = _gtk_css_change_for_child (change);
@ -3356,26 +3386,9 @@ _gtk_style_context_queue_invalidate (GtkStyleContext *context,
void
gtk_style_context_invalidate (GtkStyleContext *context)
{
GtkStyleContextPrivate *priv;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
/* Avoid reentrancy */
if (priv->invalidating_context)
return;
priv->invalidating_context = TRUE;
g_hash_table_remove_all (priv->style_data);
priv->current_data = NULL;
priv->relevant_changes = GTK_CSS_CHANGE_ANY;
g_signal_emit (context, signals[CHANGED], 0);
priv->invalidating_context = FALSE;
gtk_style_context_do_invalidate (context, TRUE);
}
/**