mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-18 17:30:10 +00:00
136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
|
#include <gtk/gtk.h>
|
||
|
|
||
|
typedef GtkListStore MyModel;
|
||
|
typedef GtkListStoreClass MyModelClass;
|
||
|
|
||
|
static void my_model_drag_source_init (GtkTreeDragSourceIface *iface);
|
||
|
|
||
|
G_DEFINE_TYPE_WITH_CODE (MyModel, my_model, GTK_TYPE_LIST_STORE,
|
||
|
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
|
||
|
my_model_drag_source_init))
|
||
|
|
||
|
static void
|
||
|
my_model_class_init (MyModelClass *class)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
my_model_init (MyModel *object)
|
||
|
{
|
||
|
GType types[1] = { G_TYPE_STRING };
|
||
|
|
||
|
gtk_list_store_set_column_types (GTK_LIST_STORE (object), G_N_ELEMENTS (types), types);
|
||
|
}
|
||
|
|
||
|
static gboolean
|
||
|
my_model_drag_data_get (GtkTreeDragSource *source,
|
||
|
GtkTreePath *path,
|
||
|
GtkSelectionData *data)
|
||
|
{
|
||
|
GtkTreeIter iter;
|
||
|
gchar *text;
|
||
|
|
||
|
gtk_tree_model_get_iter (GTK_TREE_MODEL (source), &iter, path);
|
||
|
gtk_tree_model_get (GTK_TREE_MODEL (source), &iter, 0, &text, -1);
|
||
|
gtk_selection_data_set_text (data, text, -1);
|
||
|
g_free (text);
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
my_model_drag_source_init (GtkTreeDragSourceIface *iface)
|
||
|
{
|
||
|
static GtkTreeDragSourceIface *parent;
|
||
|
|
||
|
parent = g_type_interface_peek_parent (iface);
|
||
|
|
||
|
iface->row_draggable = parent->row_draggable;
|
||
|
iface->drag_data_delete = parent->drag_data_delete;
|
||
|
iface->drag_data_get = my_model_drag_data_get;
|
||
|
}
|
||
|
|
||
|
static GtkTreeModel *
|
||
|
get_model (void)
|
||
|
{
|
||
|
MyModel *model;
|
||
|
|
||
|
model = g_object_new (my_model_get_type (), NULL);
|
||
|
gtk_list_store_insert_with_values (GTK_LIST_STORE (model), NULL, -1, 0, "Item 1", -1);
|
||
|
gtk_list_store_insert_with_values (GTK_LIST_STORE (model), NULL, -1, 0, "Item 2", -1);
|
||
|
gtk_list_store_insert_with_values (GTK_LIST_STORE (model), NULL, -1, 0, "Item 3", -1);
|
||
|
|
||
|
return GTK_TREE_MODEL (model);
|
||
|
}
|
||
|
|
||
|
static GtkTargetEntry entries[] = {
|
||
|
{ "text/plain", 0, 0 }
|
||
|
};
|
||
|
|
||
|
static GtkWidget *
|
||
|
get_dragsource (void)
|
||
|
{
|
||
|
GtkTreeView *tv;
|
||
|
GtkCellRenderer *renderer;
|
||
|
GtkTreeViewColumn *column;
|
||
|
|
||
|
tv = (GtkTreeView*) gtk_tree_view_new ();
|
||
|
renderer = gtk_cell_renderer_text_new ();
|
||
|
column = gtk_tree_view_column_new_with_attributes ("Text", renderer, "text", 0, NULL);
|
||
|
gtk_tree_view_append_column (tv, column);
|
||
|
|
||
|
gtk_tree_view_set_model (tv, get_model ());
|
||
|
gtk_tree_view_enable_model_drag_source (tv, GDK_BUTTON1_MASK, entries, G_N_ELEMENTS (entries), GDK_ACTION_COPY);
|
||
|
|
||
|
return GTK_WIDGET (tv);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
data_received (GtkWidget *widget,
|
||
|
GdkDragContext *context,
|
||
|
gint x, gint y,
|
||
|
GtkSelectionData *selda,
|
||
|
guint info, guint time,
|
||
|
gpointer dada)
|
||
|
{
|
||
|
gchar *text;
|
||
|
|
||
|
text = (gchar*) gtk_selection_data_get_text (selda);
|
||
|
gtk_label_set_label (GTK_LABEL (widget), text);
|
||
|
g_free (text);
|
||
|
}
|
||
|
|
||
|
static GtkWidget *
|
||
|
get_droptarget (void)
|
||
|
{
|
||
|
GtkWidget *label;
|
||
|
|
||
|
label = gtk_label_new ("Drop here");
|
||
|
gtk_drag_dest_set (label, GTK_DEST_DEFAULT_ALL, entries, G_N_ELEMENTS (entries), GDK_ACTION_COPY);
|
||
|
g_signal_connect (label, "drag-data-received", G_CALLBACK (data_received), NULL);
|
||
|
|
||
|
return label;
|
||
|
}
|
||
|
|
||
|
int
|
||
|
main (int argc, char *argv[])
|
||
|
{
|
||
|
GtkWidget *window;
|
||
|
GtkWidget *box;
|
||
|
|
||
|
gtk_init (NULL, NULL);
|
||
|
|
||
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
||
|
|
||
|
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
|
||
|
gtk_container_add (GTK_CONTAINER (window), box);
|
||
|
gtk_container_add (GTK_CONTAINER (box), get_dragsource ());
|
||
|
gtk_container_add (GTK_CONTAINER (box), get_droptarget ());
|
||
|
|
||
|
gtk_widget_show_all (window);
|
||
|
|
||
|
gtk_main ();
|
||
|
|
||
|
return 0;
|
||
|
}
|