Re: [Geany-Devel] [PATCH geany] gtkcompat: Add gtk_widget_{set_can_default, get_allocation}

Am 05.04.2013 08:58, schrieb Quentin Glidic:

From: Quentin Glidic sardemff7+git@sardemff7.net

Signed-off-by: Quentin Glidic sardemff7+git@sardemff7.net

src/gtkcompat.h | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/src/gtkcompat.h b/src/gtkcompat.h index ca1c187..7e0276c 100644 --- a/src/gtkcompat.h +++ b/src/gtkcompat.h @@ -92,6 +92,12 @@ G_BEGIN_DECLS compat_widget_set_flag((widget), GTK_NO_WINDOW, !(has_window)) # define gtk_widget_set_can_focus(widget, can_focus) \ compat_widget_set_flag((widget), GTK_CAN_FOCUS, (can_focus)) +# define gtk_widget_set_can_default(widget, can_default) \

• compat_widget_set_flag((widget), GTK_CAN_DEFAULT, (can_default))
  

+# define gtk_widget_get_allocation(widget, alloc) \

• do { \
  

• 	(alloc) = (((GtkWidget *) (widget))->allocation
  

• } while (0)
  

  #endif #if ! GTK_CHECK_VERSION(2, 20, 0) # define gtk_widget_get_mapped(widget) GTK_WIDGET_MAPPED(widget)

This isn't right. alloc is a pointer to caller-provided GtkAllocation. If this were a function (inline or not) the pointer would point to something else, but that doesn't affect the caller-provided GtkAllocation which is supposed to be initialized. Since this is a macro I expect it to not even compile (havent tried though). You're calling it in a later patch ("addons: Fix GTK+3 support") like this:

gtk_widget_get_allocation(widget, &allocation);

The macro would expand to:

.. (&allocation) = (((GtkWidget *) (widget))->allocation ..

That isn't valid C.

This should be correct, as it copies the contents over to the caller-provided GtkAllocation: *(alloc) = *((GtkAllocation *) ((((GtkWidget *) (widget))->allocation)); or: mempcy(alloc, ((GtkWidget *) (widget))->allocation, sizeof(GtkAllocation));

Best regards