Move GtkSizeRequest into GtkWidget

It doesn't make sense to keep them separate as GtkSizeRequest requires a
GtkWidget and GtkWidget implements GtkSizeRequest, so you can never have
one without the other.
It also makes the code a lot easier because no casts are required when
calling functions.

Also, the names would translate to gtk_widget_get_width() and people
agreed that this would be a too generic name, so a "preferred" was added
to the names.

So this patch moves the functions:
gtk_size_request_get_request_mode() => gtk_widget_get_request_mode()
gtk_size_request_get_width() => gtk_widget_get_preferred_width()
gtk_size_request_get_height() => gtk_widget_get_preferred_height()
gtk_size_request_get_size() => gtk_widget_get_preferred_size()
gtk_size_request_get_width_for_height() =>
  gtk_widget_get_preferred_width_for_height()
gtk_size_request_get_height_for_width() =>
  gtk_widget_get_preferred_height_for_width()
... and moves the corresponding vfuncs to the GtkWidgetClass.

The patch also renames the implementations of the vfuncs in widgets to
include the word "preferrred".

1 files changed, 1 insertions, 2 deletions

diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index 929810e6a4..c8e0730548 100644
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -1614,8 +1614,7 @@ add_child_attrs (GtkTextLayout      *layout,
           /* Found it */
           GtkRequisition req;
 
-          gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
-                                     &req, NULL);
+          gtk_widget_get_preferred_size (child, &req, NULL);
 
           width = req.width;
           height = req.height;