gtk2/demos/icon-browser/iconstore.c
2020-02-18 02:40:00 +01:00

92 lines
2.0 KiB
C

#include "iconstore.h"
#include <gtk/gtk.h>
struct _IconStore
{
GtkListStore parent;
gint text_column;
};
struct _IconStoreClass
{
GtkListStoreClass parent_class;
};
static void icon_store_drag_source_init (GtkTreeDragSourceIface *iface);
G_DEFINE_TYPE_WITH_CODE (IconStore, icon_store, GTK_TYPE_LIST_STORE,
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
icon_store_drag_source_init))
static void
icon_store_init (IconStore *store)
{
GType types[4] = { G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING };
gtk_list_store_set_column_types (GTK_LIST_STORE (store), 4, types);
store->text_column = ICON_STORE_NAME_COLUMN;
}
static void
icon_store_class_init (IconStoreClass *class)
{
}
static gboolean
row_draggable (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
return TRUE;
}
static gboolean
drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
GtkTreeIter iter;
if (gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source), &iter, path))
return gtk_list_store_remove (GTK_LIST_STORE (drag_source), &iter);
return FALSE;
}
static GdkContentProvider *
drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
GdkContentProvider *content;
GtkTreeIter iter;
gchar *text;
if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source), &iter, path))
return NULL;
gtk_tree_model_get (GTK_TREE_MODEL (drag_source), &iter,
ICON_STORE (drag_source)->text_column, &text,
-1);
content = gdk_content_provider_new_typed (G_TYPE_STRING, text);
g_free (text);
return content;
}
static void
icon_store_drag_source_init (GtkTreeDragSourceIface *iface)
{
iface->row_draggable = row_draggable;
iface->drag_data_delete = drag_data_delete;
iface->drag_data_get = drag_data_get;
}
void
icon_store_set_text_column (IconStore *store, gint text_column)
{
store->text_column = text_column;
}