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GtkCellView now watches the "row-changed" signal.

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When the "row-changed" signal on the model is trapped, if the row which
changed is the displayed row then the context is flushed and sizes are
recalculated for every area in the same context.
This commit is contained in:
Tristan Van Berkom 2010-11-22 15:51:51 +09:00
parent 9ffaae5022
commit 88ec6a62ef
1 changed files with 34 additions and 2 deletions
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34
gtk/gtkcellview.c
View File

@ -54,6 +54,7 @@ struct _GtkCellViewPrivate
gboolean background_set;
gulong size_changed_id;
gulong row_changed_id;
};
@ -138,7 +139,10 @@ static void gtk_cell_view_get_preferred_height_for_width (GtkWidget
static void context_size_changed_cb (GtkCellAreaContext *context,
GParamSpec *pspec,
GtkWidget *view);
static void row_changed_cb (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
GtkCellView *view);
static GtkBuildableIface *parent_buildable_iface;
@ -669,6 +673,24 @@ context_size_changed_cb (GtkCellAreaContext *context,
gtk_widget_queue_resize (view);
}
static void
row_changed_cb (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
GtkCellView *view)
{
GtkTreePath *row_path;
if (view->priv->displayed_row)
{
row_path =
gtk_tree_row_reference_get_path (view->priv->displayed_row);
/* Resize everything in our context if our row changed */
if (gtk_tree_path_compare (row_path, path) == 0)
gtk_cell_area_context_flush (view->priv->context);
}
}
/**
* gtk_cell_view_new:
@ -863,6 +885,10 @@ gtk_cell_view_set_model (GtkCellView *cell_view,
if (cell_view->priv->model)
{
g_signal_handler_disconnect (cell_view->priv->model,
cell_view->priv->row_changed_id);
cell_view->priv->row_changed_id = 0;
if (cell_view->priv->displayed_row)
gtk_tree_row_reference_free (cell_view->priv->displayed_row);
cell_view->priv->displayed_row = NULL;
@ -874,7 +900,13 @@ gtk_cell_view_set_model (GtkCellView *cell_view,
cell_view->priv->model = model;
if (cell_view->priv->model)
{
g_object_ref (cell_view->priv->model);
cell_view->priv->row_changed_id =
g_signal_connect (cell_view->priv->model, "row-changed",
G_CALLBACK (row_changed_cb), cell_view);
}
}
/**