Remove usages of deprecated APIs of qtbase/widgets

- Replace the usages of deprecated APIs by corresponding
  alternatives in the library code and documentation.

- Build docs for deprecated APIs conditionally, based on deprecation
  version. Remove the docs of methods deprecated since 5.0.0, these
  methods are not compiled anymore.

- Modify the tests to make them build when deprecated APIs disabled:
    * Make the the parts of the tests testing the deprecated APIs to
      be compiled conditionally, only when the corresponding methods
      are enabled.
    * If the test-case tests only the deprecated API, but not the
      corresponding replacement, add tests for the replacement

Task-number: QTBUG-76491
Task-number: QTBUG-76540
Task-number: QTBUG-76541
Change-Id: I6aaf0a1369c479fb880369a38f2b8e1e86b46934
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp b/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp
index 046899ce05..b8abd78657 100644
--- a/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp
+++ b/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp
@@ -880,7 +880,7 @@ void tst_QMdiArea::minimumSizeHint()
 {
     QMdiArea workspace;
     workspace.show();
-    QSize expectedSize(workspace.style()->pixelMetric(QStyle::PM_MDIMinimizedWidth),
+    QSize expectedSize(workspace.style()->pixelMetric(QStyle::PM_MdiSubWindowMinimizedWidth),
                        workspace.style()->pixelMetric(QStyle::PM_TitleBarHeight));
     qApp->processEvents();
     QAbstractScrollArea dummyScrollArea;