Remove usages of deprecated APIs of qtbase/gui

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

- Modified the tests to make them build when deprecated APIs disabled:
    * Made 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, added tests for the replacement.

Change-Id: Ic38245015377fc0c8127eb5458c184ffd4b450f1
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/examples/opengl/legacy/overpainting/glwidget.cpp b/examples/opengl/legacy/overpainting/glwidget.cpp
index 0094f8ead7..c4558ce785 100644
--- a/examples/opengl/legacy/overpainting/glwidget.cpp
+++ b/examples/opengl/legacy/overpainting/glwidget.cpp
@@ -130,7 +130,7 @@ void GLWidget::initializeGL()
     glEnable(GL_MULTISAMPLE);
 
     logo = new QtLogo(this);
-    logo->setColor(qtGreen.dark());
+    logo->setColor(qtGreen.darker());
 }
 //! [2]
 
@@ -163,7 +163,7 @@ void GLWidget::paintEvent(QPaintEvent *event)
 //! [4]
 
 //! [6]
-    qglClearColor(qtPurple.dark());
+    qglClearColor(qtPurple.darker());
     glShadeModel(GL_SMOOTH);
     glEnable(GL_DEPTH_TEST);
     glEnable(GL_CULL_FACE);