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#include <gtk/gtk.h>
static GtkTargetEntry entries[] = {
{ "GTK_LIST_BOX_ROW", GTK_TARGET_SAME_APP, 0 }
};
static void
drag_begin (GtkWidget *widget,
GdkDragContext *context,
gpointer data)
{
GtkAllocation alloc;
cairo_surface_t *surface;
cairo_t *cr;
gtk_widget_get_allocation (widget, &alloc);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, alloc.width, alloc.height);
cr = cairo_create (surface);
gtk_style_context_add_class (gtk_widget_get_style_context (widget), "during-dnd");
gtk_widget_draw (widget, cr);
gtk_style_context_remove_class (gtk_widget_get_style_context (widget), "during-dnd");
gtk_drag_set_icon_surface (context, surface);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
void
drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
gtk_selection_data_set (selection_data,
gdk_atom_intern_static_string ("GTK_LIST_BOX_ROW"),
32,
(const guchar *)&widget,
sizeof (gpointer));
}
static void
drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint32 time,
gpointer data)
{
GtkWidget *target;
GtkWidget *row;
GtkWidget *source;
int pos;
target = gtk_widget_get_ancestor (widget, GTK_TYPE_LIST_BOX_ROW);
pos = gtk_list_box_row_get_index (GTK_LIST_BOX_ROW (target));
row = (gpointer)* (gpointer*)gtk_selection_data_get_data (selection_data);
source = gtk_widget_get_ancestor (row, GTK_TYPE_LIST_BOX_ROW);
g_object_ref (source);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (source)), source);
gtk_list_box_insert (GTK_LIST_BOX (gtk_widget_get_parent (target)), source, pos);
g_object_unref (source);
}
static GtkWidget *
create_row (const gchar *text)
{
GtkWidget *row, *ebox, *box, *label;
row = gtk_list_box_row_new ();
ebox = gtk_event_box_new ();
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
label = gtk_label_new (text);
gtk_container_add (GTK_CONTAINER (row), ebox);
gtk_container_add (GTK_CONTAINER (ebox), box);
gtk_container_add (GTK_CONTAINER (box), label);
gtk_drag_source_set (ebox, GDK_BUTTON1_MASK, entries, 1, GDK_ACTION_MOVE);
g_signal_connect (ebox, "drag-begin", G_CALLBACK (drag_begin), NULL);
g_signal_connect (ebox, "drag-data-get", G_CALLBACK (drag_data_get), NULL);
gtk_drag_dest_set (ebox, GTK_DEST_DEFAULT_ALL, entries, 1, GDK_ACTION_MOVE);
g_signal_connect (ebox, "drag-data-received", G_CALLBACK (drag_data_received), NULL);
return row;
}
static void
on_row_activated (GtkListBox *self,
GtkWidget *child)
{
const char *id;
id = g_object_get_data (G_OBJECT (gtk_bin_get_child (GTK_BIN (child))), "id");
g_message ("Row activated %p: %s", child, id);
}
static void
on_selected_children_changed (GtkListBox *self)
{
g_message ("Selection changed");
}
static void
a11y_selection_changed (AtkObject *obj)
{
g_message ("Accessible selection changed");
}
static void
selection_mode_changed (GtkComboBox *combo, gpointer data)
{
GtkListBox *list = data;
gtk_list_box_set_selection_mode (list, gtk_combo_box_get_active (combo));
}
static const char *css =
".during-dnd { "
" background: white; "
" border: 1px solid black; "
"}";
int
main (int argc, char *argv[])
{
GtkWidget *window, *list, *sw, *row;
GtkWidget *hbox, *vbox, *combo, *button;
gint i;
gchar *text;
GtkCssProvider *provider;
gtk_init ();
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, css, -1, NULL);
gtk_style_context_add_provider_for_screen (gdk_screen_get_default (), GTK_STYLE_PROVIDER (provider), 800);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), -1, 300);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_container_add (GTK_CONTAINER (window), hbox);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
g_object_set (vbox, "margin", 12, NULL);
gtk_container_add (GTK_CONTAINER (hbox), vbox);
list = gtk_list_box_new ();
gtk_list_box_set_selection_mode (GTK_LIST_BOX (list), GTK_SELECTION_NONE);
g_signal_connect (list, "row-activated", G_CALLBACK (on_row_activated), NULL);
g_signal_connect (list, "selected-rows-changed", G_CALLBACK (on_selected_children_changed), NULL);
g_signal_connect (gtk_widget_get_accessible (list), "selection-changed", G_CALLBACK (a11y_selection_changed), NULL);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_widget_set_hexpand (sw, TRUE);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
gtk_container_add (GTK_CONTAINER (hbox), sw);
gtk_container_add (GTK_CONTAINER (sw), list);
button = gtk_check_button_new_with_label ("Activate on single click");
g_object_bind_property (list, "activate-on-single-click",
button, "active",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
gtk_container_add (GTK_CONTAINER (vbox), button);
combo = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "None");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Single");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Browse");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Multiple");
g_signal_connect (combo, "changed", G_CALLBACK (selection_mode_changed), list);
gtk_container_add (GTK_CONTAINER (vbox), combo);
gtk_combo_box_set_active (GTK_COMBO_BOX (combo), gtk_list_box_get_selection_mode (GTK_LIST_BOX (list)));
for (i = 0; i < 20; i++)
{
text = g_strdup_printf ("Row %d", i);
row = create_row (text);
gtk_list_box_insert (GTK_LIST_BOX (list), row, -1);
}
gtk_widget_show (window);
gtk_main ();
return 0;
}
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