examples: Mark ctor's as explicit

Make C++ class constructors that can be used with only one
required argument 'explicit' to minimize wrong use of the class.

Change-Id: Ida9f9c2f0c8608c35b0137b2512a6747afd69515
Reviewed-by: Mitch Curtis <mitch.curtis@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/examples/widgets/painting/deform/pathdeform.h b/examples/widgets/painting/deform/pathdeform.h
index 6f0d647f4e..07f615d31e 100644
--- a/examples/widgets/painting/deform/pathdeform.h
+++ b/examples/widgets/painting/deform/pathdeform.h
@@ -58,7 +58,7 @@ class PathDeformRenderer : public ArthurFrame
     Q_PROPERTY(QString text READ text WRITE setText)
 
 public:
-    PathDeformRenderer(QWidget *widget, bool smallScreen = false);
+    explicit PathDeformRenderer(QWidget *widget, bool smallScreen = false);
 
     void paint(QPainter *painter);
 
diff --git a/examples/widgets/painting/painterpaths/renderarea.h b/examples/widgets/painting/painterpaths/renderarea.h
index 5c310fdf62..ec6c4ea291 100644
--- a/examples/widgets/painting/painterpaths/renderarea.h
+++ b/examples/widgets/painting/painterpaths/renderarea.h
@@ -50,7 +50,7 @@ class RenderArea : public QWidget
     Q_OBJECT
 
 public:
-    RenderArea(const QPainterPath &path, QWidget *parent = 0);
+    explicit RenderArea(const QPainterPath &path, QWidget *parent = 0);
 
     QSize minimumSizeHint() const;
     QSize sizeHint() const;
diff --git a/examples/widgets/painting/pathstroke/pathstroke.h b/examples/widgets/painting/pathstroke/pathstroke.h
index 743a757b0a..5e2a1ea579 100644
--- a/examples/widgets/painting/pathstroke/pathstroke.h
+++ b/examples/widgets/painting/pathstroke/pathstroke.h
@@ -53,7 +53,7 @@ class PathStrokeRenderer : public ArthurFrame
 public:
     enum PathMode { CurveMode, LineMode };
 
-    PathStrokeRenderer(QWidget *parent, bool smallScreen = false);
+    explicit PathStrokeRenderer(QWidget *parent, bool smallScreen = false);
 
     void paint(QPainter *);
     void mousePressEvent(QMouseEvent *e);