Ported QWidget inject code.

Reviewed by Lauro Moura <lauro.neto@openbossa.org>

PySide/QtGui/glue/qwidget_glue.h

@@ -0,0 +1,39 @@
+/**
+ * Tranfer objects ownership from layout to widget
+ **/
+static inline void
+qwidgetReparentLayout(QWidget *parent, QLayout *layout)
+{
+    Shiboken::AutoDecRef pyParent(Shiboken::Converter<QWidget*>::toPython(parent));
+
+    for (int i=0; i < layout->count(); i++)
+    {
+        QLayoutItem *item = layout->itemAt(i);
+        QWidget *w = item->widget();
+
+        if (w)
+        {
+            Shiboken::AutoDecRef pyChild(Shiboken::Converter<QWidget*>::toPython(w));
+            Shiboken::setParent(pyParent, pyChild);
+        }
+        else
+        {
+            QLayout *l = item->layout();
+            if (l)
+                qwidgetReparentLayout(parent, l);
+        }
+    }
+
+    Shiboken::AutoDecRef pyChild(Shiboken::Converter<QLayout*>::toPython(layout));
+    Shiboken::setParent(pyParent, pyChild);
+}
+
+static inline void
+qwidgetSetLayout(QWidget *self, QLayout *layout)
+{
+    if (self->layout())
+        return;
+
+    qwidgetReparentLayout(self, layout);
+    self->setLayout(layout);
+}

PySide/QtGui/typesystem_gui_common.xml

@@ -2568,6 +2568,7 @@
     <extra-includes>
       <include file-name="QIcon" location="global"/>
       <include file-name="QMessageBox" location="global"/>
+      <include file-name="glue/qwidget_glue.h" location="local"/>
     </extra-includes>
 
     <modify-function signature="actionEvent(QActionEvent*)">
@@ -2682,8 +2683,11 @@
       </modify-argument>
     </modify-function>
 
-    <!-- Will use glue code -->
+    <modify-function signature="setLayout(QLayout *)">
-    <modify-function signature="setLayout(QLayout *)" remove="all"/>
+      <inject-code class="target" position="beginning">
+        qwidgetSetLayout(%CPPSELF, %1);
+      </inject-code>
+    </modify-function>
     <modify-function signature="enabledChange(bool)" remove="all"/>
     <!--### Obsolete in 4.3-->
     <modify-function signature="fontChange(QFont)" remove="all"/>