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cssnode: Redo style changed tracking

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We don't return a NULL style to mean "no changes" anymore, instead
we check new_style == old_style to mean that.

Make sure the code reflects this, otherwise we'll send
GTK_CSS_CHANGE_PARENT_STYLE invalidations everywhere and screw up
performance.
This commit is contained in:
Benjamin Otte 2015-02-25 18:05:07 +01:00
parent 776d99ac51
commit 68b8f792d6
1 changed files with 10 additions and 10 deletions
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20
gtk/gtkcssnode.c
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@ -588,12 +588,12 @@ gtk_css_node_get_next_sibling (GtkCssNode *cssnode)
return cssnode->next_sibling;
}
static void
static gboolean
gtk_css_node_set_style (GtkCssNode *cssnode,
GtkCssStyle *style)
{
if (cssnode->style == style)
return;
return FALSE;
if (style)
g_object_ref (style);
@ -602,6 +602,8 @@ gtk_css_node_set_style (GtkCssNode *cssnode,
g_object_unref (cssnode->style);
cssnode->style = style;
return TRUE;
}
static void
@ -645,6 +647,7 @@ gtk_css_node_ensure_style (GtkCssNode *cssnode,
gint64 current_time)
{
GtkCssStyle *new_style;
gboolean style_changed;
if (!gtk_css_node_needs_new_style (cssnode))
return;
@ -660,15 +663,12 @@ gtk_css_node_ensure_style (GtkCssNode *cssnode,
current_time,
cssnode->style);
gtk_css_node_propagate_pending_changes (cssnode, new_style != NULL);
style_changed = gtk_css_node_set_style (cssnode, new_style);
g_object_unref (new_style);
if (new_style)
{
gtk_css_node_set_style (cssnode, new_style);
g_object_unref (new_style);
cssnode->pending_changes = 0;
}
gtk_css_node_propagate_pending_changes (cssnode, style_changed);
cssnode->pending_changes = 0;
cssnode->style_is_invalid = FALSE;
}