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treeview: cache expander size

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We need to know it all the time and since we get it from CSS, doing that
is fairly expensive.
This commit is contained in:
Timm Bäder 2019-01-15 16:23:18 +01:00
parent a93f984b16
commit 697aa95c7e
1 changed files with 21 additions and 7 deletions
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26
gtk/gtktreeview.c
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@ -463,6 +463,8 @@ struct _GtkTreeViewPrivate
/* Tooltip support */
gint tooltip_column;
int expander_size;
/* Here comes the bitfield */
guint scroll_to_use_align : 1;
@ -1682,6 +1684,7 @@ gtk_tree_view_init (GtkTreeView *tree_view)
priv->search_custom_entry_set = FALSE;
priv->typeselect_flush_timeout = 0;
priv->width = 0;
priv->expander_size = -1;
priv->hover_selection = FALSE;
priv->hover_expand = FALSE;
@ -2726,12 +2729,16 @@ row_is_separator (GtkTreeView *tree_view,
static int
gtk_tree_view_get_expander_size (GtkTreeView *tree_view)
{
GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
GtkStyleContext *context;
GtkCssStyle *style;
int min_width;
int min_height;
int expander_size;
if (priv->expander_size != -1)
return priv->expander_size;
context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_EXPANDER);
@ -2745,7 +2752,10 @@ gtk_tree_view_get_expander_size (GtkTreeView *tree_view)
gtk_style_context_restore (context);
expander_size = MAX (min_width, min_height);
return expander_size + (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2);
priv->expander_size = expander_size + (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2);
return priv->expander_size;
}
static void
@ -7963,6 +7973,7 @@ static void
gtk_tree_view_style_updated (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
GList *list;
GtkTreeViewColumn *column;
GtkStyleContext *style_context;
@ -7972,8 +7983,8 @@ gtk_tree_view_style_updated (GtkWidget *widget)
if (gtk_widget_get_realized (widget))
{
gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
gtk_tree_view_set_grid_lines (tree_view, priv->grid_lines);
gtk_tree_view_set_enable_tree_lines (tree_view, priv->tree_lines_enabled);
}
style_context = gtk_widget_get_style_context (widget);
@ -7981,15 +7992,18 @@ gtk_tree_view_style_updated (GtkWidget *widget)
if (change == NULL || gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_SIZE))
{
for (list = tree_view->priv->columns; list; list = list->next)
for (list = priv->columns; list; list = list->next)
{
column = list->data;
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
tree_view->priv->fixed_height = -1;
gtk_tree_rbtree_mark_invalid (tree_view->priv->tree);
priv->fixed_height = -1;
gtk_tree_rbtree_mark_invalid (priv->tree);
}
/* Invalidate expander size */
priv->expander_size = -1;
}