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listview: Add vfuncs for widget management

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No public API yet, I don't have a good one...
This commit is contained in:
Benjamin Otte
2012-05-09 07:48:57 +02:00
parent 02bc5022fa
commit 5822782963
1 changed files with 103 additions and 4 deletions
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107
gtk/gtklistview.c
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@@ -21,6 +21,7 @@
#include "gtkenums.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtktypebuiltins.h"
/**
@@ -46,6 +47,9 @@
typedef struct _GtkListViewItem GtkListViewItem;
typedef GtkWidget * (* GtkListViewCreateFunc) (gpointer data);
typedef void (* GtkListViewUpdateFunc) (GtkWidget *widget, GtkTreeModel *model, GtkTreeIter *iter, gpointer data);
struct _GtkListViewItem {
guint pos;
GtkWidget * widget;
@@ -56,6 +60,11 @@ struct _GtkListViewPrivate {
GtkTreeModel * model;
GtkSelectionMode selection_mode;
GtkListViewItem * items;
GtkListViewCreateFunc widget_create;
GtkListViewUpdateFunc widget_update;
GDestroyNotify widget_data_destroy;
gpointer widget_data;
};
/* Signals */
@@ -144,15 +153,95 @@ gtk_list_view_get_n_items (GtkListView *list_view)
return gtk_tree_model_iter_n_children (priv->model, NULL);
}
#include <gtklabel.h>
/* I don't want to make this function public, it exposes too many internals.
* Also, experience from GtkCellLayoutDataFunc says that people are too
* careless about ensuring the provided functions are fast and idempotent.
* So I'd rather provide a bunch of wrappers.
*/
static void
gtk_list_view_set_widget_creation_funcs (GtkListView *list_view,
GtkListViewCreateFunc create_func,
GtkListViewUpdateFunc update_func,
GDestroyNotify destroy_func,
gpointer data)
{
GtkListViewPrivate *priv;
g_return_if_fail (GTK_IS_LIST_VIEW (list_view));
g_return_if_fail (create_func != NULL);
priv = list_view->priv;
if (priv->widget_data_destroy)
priv->widget_data_destroy (priv->widget_data);
priv->widget_create = create_func;
priv->widget_update = update_func;
priv->widget_data_destroy = destroy_func;
priv->widget_data = data;
gtk_list_view_clear (list_view);
gtk_widget_queue_resize (GTK_WIDGET (list_view));
}
static GtkWidget *
gtk_list_view_default_widget_create (gpointer unused)
{
GtkWidget *widget;
widget = gtk_label_new ("");
gtk_widget_show (widget);
return widget;
}
static void
gtk_list_view_default_widget_update (GtkWidget *widget,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer unused)
{
GString *string;
guint i;
string = g_string_new (NULL);
for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
{
GValue value = G_VALUE_INIT;
gchar *s;
if (i != 0)
g_string_append (string, ", ");
gtk_tree_model_get_value (model, iter, i, &value);
s = g_strdup_value_contents (&value);
g_value_unset (&value);
g_string_append (string, s);
g_free (s);
}
gtk_label_set_text (GTK_LABEL (widget), string->str);
g_string_free (string, TRUE);
}
static GtkWidget *
gtk_list_view_create_widget (GtkListView *list_view,
guint index)
{
GtkListViewPrivate *priv = list_view->priv;
GtkTreeIter iter;
GtkWidget *widget;
widget = gtk_label_new ("Hello World");
gtk_widget_show (widget);
widget = priv->widget_create (priv->widget_data);
if (!gtk_tree_model_iter_nth_child (priv->model, &iter, NULL, index))
{
g_assert_not_reached ();
}
priv->widget_update (widget,
priv->model,
&iter,
priv->widget_data);
return widget;
}
@@ -430,6 +519,11 @@ gtk_list_view_dispose (GObject *object)
gtk_list_view_set_model (list_view, NULL);
gtk_list_view_clear (list_view);
gtk_list_view_set_widget_creation_funcs (list_view,
gtk_list_view_default_widget_create,
gtk_list_view_default_widget_update,
NULL,
NULL);
G_OBJECT_CLASS (gtk_list_view_parent_class)->dispose (object);
}
@@ -557,6 +651,12 @@ gtk_list_view_init (GtkListView *list_view)
list_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (list_view,
GTK_TYPE_LIST_VIEW,
GtkListViewPrivate);
gtk_list_view_set_widget_creation_funcs (list_view,
gtk_list_view_default_widget_create,
gtk_list_view_default_widget_update,
NULL,
NULL);
}
/**
@@ -777,7 +877,6 @@ gtk_list_view_get_selection_mode (GtkListView *list_view)
return list_view->priv->selection_mode;
}
gboolean gtk_list_view_get_visible_range (GtkListView *list_view,
GtkTreePath **start_path,
GtkTreePath **end_path);