Fix memory leaks (#28)

src/sys/pango/attr_iterator.rs

@@ -23,7 +23,7 @@ pub trait AttrIteratorFactory {
 impl AttrIteratorFactory for pango::AttrList {
     fn get_iterator(&self) -> AttrIterator {
         unsafe {
-            from_glib_none(pango_sys::pango_attr_list_get_iterator(
+            from_glib_full(pango_sys::pango_attr_list_get_iterator(
                 self.to_glib_none().0,
             ))
         }

src/sys/pango/item.rs

@@ -23,7 +23,7 @@ impl Item {
     #[cfg(test)]
     pub fn new() -> Self {
         unsafe {
-            from_glib_none(pango_sys::pango_item_new())
+            from_glib_full(pango_sys::pango_item_new())
         }
     }
 

src/sys/pango/mod.rs

@@ -10,6 +10,7 @@ use std::ptr;
 
 use pango;
 use pango_sys;
+use glib_ffi;
 
 use glib::translate::*;
 
@@ -22,7 +23,8 @@ pub fn pango_itemize(
     cached_iter: Option<&mut AttrIterator>,
 ) -> Vec<Item> {
     unsafe {
-        FromGlibPtrContainer::from_glib_container(pango_sys::pango_itemize(
+        //FromGlibPtrContainer::from_glib_full(pango_sys::pango_itemize(
+        from_glib_full_as_vec(pango_sys::pango_itemize(
             context.to_glib_none().0,
             text.as_ptr() as *const i8,
             start_index as i32,
@@ -33,6 +35,12 @@ pub fn pango_itemize(
     }
 }
 
+
+unsafe fn from_glib_full_as_vec(ptr: *mut glib_ffi::GList) -> Vec<Item> {
+    let num = glib_ffi::g_list_length(ptr) as usize;
+    FromGlibContainer::from_glib_full_num(ptr, num)
+}
+
 pub fn pango_shape(
     text: &str,
     offset: usize,