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cssnode: Change get_style_provider() vfunc

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Instead of always returning a provider, allow the vfunc to return NULL
to mane "use same provider as parent". This allows a bunch of
optimizations.
This commit is contained in:
Benjamin Otte 2015-02-17 15:18:32 +01:00
parent c0f6e746a0
commit 16b8972bee
4 changed files with 23 additions and 8 deletions
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26
gtk/gtkcssnode.c
View File

@ -29,6 +29,12 @@
G_DEFINE_TYPE (GtkCssNode, gtk_css_node, G_TYPE_OBJECT)
static GtkStyleProviderPrivate *
gtk_css_node_get_style_provider_or_null (GtkCssNode *cssnode)
{
return GTK_CSS_NODE_GET_CLASS (cssnode)->get_style_provider (cssnode);
}
void
gtk_css_node_set_invalid (GtkCssNode *node,
gboolean invalid)
@ -82,13 +88,15 @@ gtk_css_node_finalize (GObject *object)
static gboolean
may_use_global_parent_cache (GtkCssNode *node)
{
GtkStyleProviderPrivate *provider;
GtkCssNode *parent;
parent = gtk_css_node_get_parent (node);
if (parent == NULL)
return FALSE;
if (gtk_css_node_get_style_provider (node) != gtk_css_node_get_style_provider (parent))
provider = gtk_css_node_get_style_provider_or_null (node);
if (provider != NULL && provider != gtk_css_node_get_style_provider (parent))
return FALSE;
return TRUE;
@ -275,10 +283,7 @@ gtk_css_node_real_get_widget_path (GtkCssNode *cssnode)
static GtkStyleProviderPrivate *
gtk_css_node_real_get_style_provider (GtkCssNode *cssnode)
{
if (cssnode->parent)
return gtk_css_node_get_style_provider (cssnode->parent);
return GTK_STYLE_PROVIDER_PRIVATE (_gtk_settings_get_style_cascade (gtk_settings_get_default (), 1));
return NULL;
}
static void
@ -821,5 +826,14 @@ gtk_css_node_get_widget_path (GtkCssNode *cssnode)
GtkStyleProviderPrivate *
gtk_css_node_get_style_provider (GtkCssNode *cssnode)
{
return GTK_CSS_NODE_GET_CLASS (cssnode)->get_style_provider (cssnode);
GtkStyleProviderPrivate *result;
result = gtk_css_node_get_style_provider_or_null (cssnode);
if (result)
return result;
if (cssnode->parent)
return gtk_css_node_get_style_provider (cssnode->parent);
return GTK_STYLE_PROVIDER_PRIVATE (_gtk_settings_get_style_cascade (gtk_settings_get_default (), 1));
}

1
gtk/gtkcssnodeprivate.h
View File

@ -68,6 +68,7 @@ struct _GtkCssNodeClass
GtkCssMatcher *matcher);
GtkWidgetPath * (* create_widget_path) (GtkCssNode *cssnode);
const GtkWidgetPath * (* get_widget_path) (GtkCssNode *cssnode);
/* get style provider to use or NULL to use parent's */
GtkStyleProviderPrivate *(* get_style_provider) (GtkCssNode *cssnode);
GtkCssStyle * (* update_style) (GtkCssNode *cssnode,
GtkCssChange pending_changes,

2
gtk/gtkcsspathnode.c
View File

@ -107,7 +107,7 @@ gtk_css_path_node_get_style_provider (GtkCssNode *node)
GtkCssPathNode *path_node = GTK_CSS_PATH_NODE (node);
if (path_node->context == NULL)
return GTK_CSS_NODE_CLASS (gtk_css_path_node_parent_class)->get_style_provider (node);
return NULL;
return gtk_style_context_get_style_provider (path_node->context);
}

2
gtk/gtkcsswidgetnode.c
View File

@ -262,7 +262,7 @@ gtk_css_widget_node_get_style_provider (GtkCssNode *node)
GtkCssWidgetNode *widget_node = GTK_CSS_WIDGET_NODE (node);
if (widget_node->widget == NULL)
return GTK_CSS_NODE_CLASS (gtk_css_widget_node_parent_class)->get_style_provider (node);
return NULL;
return gtk_style_context_get_style_provider (gtk_widget_get_style_context (widget_node->widget));
}