Fixed QLineEdit.getTextMargins return value.

Fixes bug #632

Reviewer: Hugo Parente Lima <hugo.pl@gmail.com>
          Marcelo Lira <marcelo.lira@openbossa.org>

tests/QtGui/bug_632.py

@@ -0,0 +1,20 @@
+import sys
+from PySide.QtGui import QLineEdit, QApplication
+import unittest
+
+
+class Bug589(unittest.TestCase):
+    def testWrongSignature(self):
+        text = QLineEdit("PySide bug 632")
+        a = b = c = d = 0
+        self.assertRaises(TypeError, text.getTextMargins, (a, b, c, d))
+
+    def testTupleReturn(self):
+        text = QLineEdit("PySide bug 632")
+        text.setTextMargins(10, 20, 30, 40)
+        (a, b, c, d) = text.getTextMargins()
+        self.assert_((a, b, c, d), (10, 20, 30, 40))
+
+if __name__ == "__main__":
+   app = QApplication(sys.argv)
+   unittest.main()