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>

29 files changed, 40 insertions, 40 deletions

diff --git a/examples/widgets/animation/stickman/node.h b/examples/widgets/animation/stickman/node.h
index ae6e2a3ed0..ca04d7813b 100644
--- a/examples/widgets/animation/stickman/node.h
+++ b/examples/widgets/animation/stickman/node.h
@@ -47,7 +47,7 @@ class Node: public QGraphicsObject
 {
     Q_OBJECT
 public:
-    Node(const QPointF &pos, QGraphicsItem *parent = 0);
+    explicit Node(const QPointF &pos, QGraphicsItem *parent = 0);
     ~Node();
 
     QRectF boundingRect() const;
diff --git a/examples/widgets/animation/sub-attaq/boat_p.h b/examples/widgets/animation/sub-attaq/boat_p.h
index 38be985777..03f7df2835 100644
--- a/examples/widgets/animation/sub-attaq/boat_p.h
+++ b/examples/widgets/animation/sub-attaq/boat_p.h
@@ -139,7 +139,7 @@ private:
 class MoveStateRight : public QState
 {
 public:
-    MoveStateRight(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
+    explicit MoveStateRight(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
     {
     }
 protected:
@@ -156,7 +156,7 @@ private:
 class MoveStateLeft : public QState
 {
 public:
-    MoveStateLeft(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
+    explicit MoveStateLeft(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
     {
     }
 protected:
@@ -173,7 +173,7 @@ private:
 class StopState : public QState
 {
 public:
-    StopState(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
+    explicit StopState(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
     {
     }
 protected:
@@ -191,7 +191,7 @@ private:
 class LaunchStateRight : public QState
 {
 public:
-    LaunchStateRight(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
+    explicit LaunchStateRight(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
     {
     }
 protected:
@@ -212,7 +212,7 @@ private:
 class LaunchStateLeft : public QState
 {
 public:
-    LaunchStateLeft(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
+    explicit LaunchStateLeft(Boat *boat,QState *parent = 0) : QState(parent), boat(boat)
     {
     }
 protected:
diff --git a/examples/widgets/animation/sub-attaq/states.h b/examples/widgets/animation/sub-attaq/states.h
index e43370302c..98799ddd94 100644
--- a/examples/widgets/animation/sub-attaq/states.h
+++ b/examples/widgets/animation/sub-attaq/states.h
@@ -59,7 +59,7 @@ QT_END_NAMESPACE
 class PlayState : public QState
 {
 public:
-    PlayState(GraphicsScene *scene, QState *parent = 0);
+    explicit PlayState(GraphicsScene *scene, QState *parent = 0);
     ~PlayState();
 
  protected:
@@ -96,7 +96,7 @@ private :
 class PauseState : public QState
 {
 public:
-    PauseState(GraphicsScene *scene, QState *parent = 0);
+    explicit PauseState(GraphicsScene *scene, QState *parent = 0);
 
 protected:
     void onEntry(QEvent *);
diff --git a/examples/widgets/animation/sub-attaq/submarine_p.h b/examples/widgets/animation/sub-attaq/submarine_p.h
index f24487aa17..c9b9829eb6 100644
--- a/examples/widgets/animation/sub-attaq/submarine_p.h
+++ b/examples/widgets/animation/sub-attaq/submarine_p.h
@@ -67,7 +67,7 @@ class MovementState : public QAnimationState
 {
 Q_OBJECT
 public:
-    MovementState(SubMarine *submarine, QState *parent = 0) : QAnimationState(parent)
+    explicit MovementState(SubMarine *submarine, QState *parent = 0) : QAnimationState(parent)
     {
         movementAnimation = new QPropertyAnimation(submarine, "pos");
         connect(movementAnimation,SIGNAL(valueChanged(const QVariant &)),this,SLOT(onAnimationMovementValueChanged(const QVariant &)));
@@ -106,7 +106,7 @@ private:
 class ReturnState : public QAnimationState
 {
 public:
-    ReturnState(SubMarine *submarine, QState *parent = 0) : QAnimationState(parent)
+    explicit ReturnState(SubMarine *submarine, QState *parent = 0) : QAnimationState(parent)
     {
         returnAnimation = new QPropertyAnimation(submarine->rotation(), "angle");
         returnAnimation->setDuration(500);
diff --git a/examples/widgets/dialogs/tabdialog/tabdialog.h b/examples/widgets/dialogs/tabdialog/tabdialog.h
index c2b46f0e92..c0d74c18e3 100644
--- a/examples/widgets/dialogs/tabdialog/tabdialog.h
+++ b/examples/widgets/dialogs/tabdialog/tabdialog.h
@@ -55,7 +55,7 @@ class GeneralTab : public QWidget
     Q_OBJECT
 
 public:
-    GeneralTab(const QFileInfo &fileInfo, QWidget *parent = 0);
+    explicit GeneralTab(const QFileInfo &fileInfo, QWidget *parent = 0);
 };
 //! [0]
 
@@ -66,7 +66,7 @@ class PermissionsTab : public QWidget
     Q_OBJECT
 
 public:
-    PermissionsTab(const QFileInfo &fileInfo, QWidget *parent = 0);
+    explicit PermissionsTab(const QFileInfo &fileInfo, QWidget *parent = 0);
 };
 //! [1]
 
@@ -77,7 +77,7 @@ class ApplicationsTab : public QWidget
     Q_OBJECT
 
 public:
-    ApplicationsTab(const QFileInfo &fileInfo, QWidget *parent = 0);
+    explicit ApplicationsTab(const QFileInfo &fileInfo, QWidget *parent = 0);
 };
 //! [2]
 
@@ -88,7 +88,7 @@ class TabDialog : public QDialog
     Q_OBJECT
 
 public:
-    TabDialog(const QString &fileName, QWidget *parent = 0);
+    explicit TabDialog(const QString &fileName, QWidget *parent = 0);
 
 private:
     QTabWidget *tabWidget;
diff --git a/examples/widgets/draganddrop/puzzle/pieceslist.h b/examples/widgets/draganddrop/puzzle/pieceslist.h
index 3c6b042b4e..16091f5767 100644
--- a/examples/widgets/draganddrop/puzzle/pieceslist.h
+++ b/examples/widgets/draganddrop/puzzle/pieceslist.h
@@ -48,7 +48,7 @@ class PiecesList : public QListWidget
     Q_OBJECT
 
 public:
-    PiecesList(int pieceSize, QWidget *parent = 0);
+    explicit PiecesList(int pieceSize, QWidget *parent = 0);
     void addPiece(QPixmap pixmap, QPoint location);
 
 protected:
diff --git a/examples/widgets/draganddrop/puzzle/puzzlewidget.h b/examples/widgets/draganddrop/puzzle/puzzlewidget.h
index 1c0fc77a5f..98056ec217 100644
--- a/examples/widgets/draganddrop/puzzle/puzzlewidget.h
+++ b/examples/widgets/draganddrop/puzzle/puzzlewidget.h
@@ -57,7 +57,7 @@ class PuzzleWidget : public QWidget
     Q_OBJECT
 
 public:
-    PuzzleWidget(int imageSize, QWidget *parent = 0);
+    explicit PuzzleWidget(int imageSize, QWidget *parent = 0);
     void clear();
 
     int pieceSize() const;
diff --git a/examples/widgets/graphicsview/boxes/glbuffers.h b/examples/widgets/graphicsview/boxes/glbuffers.h
index 2b91915e8e..b3b1777f81 100644
--- a/examples/widgets/graphicsview/boxes/glbuffers.h
+++ b/examples/widgets/graphicsview/boxes/glbuffers.h
@@ -99,7 +99,7 @@ class GLTexture2D : public GLTexture
 {
 public:
     GLTexture2D(int width, int height);
-    GLTexture2D(const QString& fileName, int width = 0, int height = 0);
+    explicit GLTexture2D(const QString& fileName, int width = 0, int height = 0);
     void load(int width, int height, QRgb *data);
     virtual void bind();
     virtual void unbind();
@@ -120,7 +120,7 @@ class GLTextureCube : public GLTexture
 {
 public:
     GLTextureCube(int size);
-    GLTextureCube(const QStringList& fileNames, int size = 0);
+    explicit GLTextureCube(const QStringList& fileNames, int size = 0);
     void load(int size, int face, QRgb *data);
     virtual void bind();
     virtual void unbind();
diff --git a/examples/widgets/graphicsview/boxes/roundedbox.h b/examples/widgets/graphicsview/boxes/roundedbox.h
index 3edfb69fa8..0ab6766af3 100644
--- a/examples/widgets/graphicsview/boxes/roundedbox.h
+++ b/examples/widgets/graphicsview/boxes/roundedbox.h
@@ -65,7 +65,7 @@ class GLRoundedBox : public GLTriangleMesh<P3T2N3Vertex, unsigned short>
 {
 public:
     // 0 < r < 0.5, 0 <= n <= 125
-    GLRoundedBox(float r = 0.25f, float scale = 1.0f, int n = 10);
+    explicit GLRoundedBox(float r = 0.25f, float scale = 1.0f, int n = 10);
 };
 
 
diff --git a/examples/widgets/graphicsview/chip/view.h b/examples/widgets/graphicsview/chip/view.h
index 7753efff55..c688506d42 100644
--- a/examples/widgets/graphicsview/chip/view.h
+++ b/examples/widgets/graphicsview/chip/view.h
@@ -68,7 +68,7 @@ class View : public QFrame
 {
     Q_OBJECT
 public:
-    View(const QString &name, QWidget *parent = 0);
+    explicit View(const QString &name, QWidget *parent = 0);
 
     QGraphicsView *view() const;
 
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.h b/examples/widgets/graphicsview/diagramscene/diagramscene.h
index 9f65eba890..53a34b050d 100644
--- a/examples/widgets/graphicsview/diagramscene/diagramscene.h
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.h
@@ -63,7 +63,7 @@ class DiagramScene : public QGraphicsScene
 public:
     enum Mode { InsertItem, InsertLine, InsertText, MoveItem };
 
-    DiagramScene(QMenu *itemMenu, QObject *parent = 0);
+    explicit DiagramScene(QMenu *itemMenu, QObject *parent = 0);
     QFont font() const
         { return myFont; }
     QColor textColor() const
diff --git a/examples/widgets/graphicsview/embeddeddialogs/customproxy.h b/examples/widgets/graphicsview/embeddeddialogs/customproxy.h
index c85bbaccd3..12de414d11 100644
--- a/examples/widgets/graphicsview/embeddeddialogs/customproxy.h
+++ b/examples/widgets/graphicsview/embeddeddialogs/customproxy.h
@@ -49,7 +49,7 @@ class CustomProxy : public QGraphicsProxyWidget
 {
     Q_OBJECT
 public:
-    CustomProxy(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);
+    explicit CustomProxy(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);
 
     QRectF boundingRect() const;
     void paintWindowFrame(QPainter *painter, const QStyleOptionGraphicsItem *option,
diff --git a/examples/widgets/graphicsview/padnavigator/flippablepad.h b/examples/widgets/graphicsview/padnavigator/flippablepad.h
index e0d1fe24e5..ce49ef1a59 100644
--- a/examples/widgets/graphicsview/padnavigator/flippablepad.h
+++ b/examples/widgets/graphicsview/padnavigator/flippablepad.h
@@ -51,7 +51,7 @@
 class FlippablePad : public RoundRectItem
 {
 public:
-    FlippablePad(const QSize &size, QGraphicsItem *parent = 0);
+    explicit FlippablePad(const QSize &size, QGraphicsItem *parent = 0);
 
     RoundRectItem *iconAt(int column, int row) const;
 
diff --git a/examples/widgets/itemviews/editabletreemodel/treeitem.h b/examples/widgets/itemviews/editabletreemodel/treeitem.h
index 8426514759..a0f8ed0577 100644
--- a/examples/widgets/itemviews/editabletreemodel/treeitem.h
+++ b/examples/widgets/itemviews/editabletreemodel/treeitem.h
@@ -49,7 +49,7 @@
 class TreeItem
 {
 public:
-    TreeItem(const QVector<QVariant> &data, TreeItem *parent = 0);
+    explicit TreeItem(const QVector<QVariant> &data, TreeItem *parent = 0);
     ~TreeItem();
 
     TreeItem *child(int number);
diff --git a/examples/widgets/itemviews/puzzle/piecesmodel.h b/examples/widgets/itemviews/puzzle/piecesmodel.h
index e8fa45a9a0..f306c51331 100644
--- a/examples/widgets/itemviews/puzzle/piecesmodel.h
+++ b/examples/widgets/itemviews/puzzle/piecesmodel.h
@@ -56,7 +56,7 @@ class PiecesModel : public QAbstractListModel
     Q_OBJECT
 
 public:
-    PiecesModel(int pieceSize, QObject *parent = 0);
+    explicit PiecesModel(int pieceSize, QObject *parent = 0);
 
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
     Qt::ItemFlags flags(const QModelIndex &index) const;
diff --git a/examples/widgets/itemviews/puzzle/puzzlewidget.h b/examples/widgets/itemviews/puzzle/puzzlewidget.h
index 1c0fc77a5f..98056ec217 100644
--- a/examples/widgets/itemviews/puzzle/puzzlewidget.h
+++ b/examples/widgets/itemviews/puzzle/puzzlewidget.h
@@ -57,7 +57,7 @@ class PuzzleWidget : public QWidget
     Q_OBJECT
 
 public:
-    PuzzleWidget(int imageSize, QWidget *parent = 0);
+    explicit PuzzleWidget(int imageSize, QWidget *parent = 0);
     void clear();
 
     int pieceSize() const;
diff --git a/examples/widgets/itemviews/simpledommodel/dommodel.h b/examples/widgets/itemviews/simpledommodel/dommodel.h
index 386f976f79..bef3ba781c 100644
--- a/examples/widgets/itemviews/simpledommodel/dommodel.h
+++ b/examples/widgets/itemviews/simpledommodel/dommodel.h
@@ -54,7 +54,7 @@ class DomModel : public QAbstractItemModel
     Q_OBJECT
 
 public:
-    DomModel(QDomDocument document, QObject *parent = 0);
+    explicit DomModel(QDomDocument document, QObject *parent = 0);
     ~DomModel();
 
     QVariant data(const QModelIndex &index, int role) const;
diff --git a/examples/widgets/itemviews/simpletreemodel/treeitem.h b/examples/widgets/itemviews/simpletreemodel/treeitem.h
index b2a7a83066..03da562201 100644
--- a/examples/widgets/itemviews/simpletreemodel/treeitem.h
+++ b/examples/widgets/itemviews/simpletreemodel/treeitem.h
@@ -48,7 +48,7 @@
 class TreeItem
 {
 public:
-    TreeItem(const QList<QVariant> &data, TreeItem *parent = 0);
+    explicit TreeItem(const QList<QVariant> &data, TreeItem *parent = 0);
     ~TreeItem();
 
     void appendChild(TreeItem *child);
diff --git a/examples/widgets/itemviews/simpletreemodel/treemodel.h b/examples/widgets/itemviews/simpletreemodel/treemodel.h
index 9cf870c0fc..edddf482ae 100644
--- a/examples/widgets/itemviews/simpletreemodel/treemodel.h
+++ b/examples/widgets/itemviews/simpletreemodel/treemodel.h
@@ -53,7 +53,7 @@ class TreeModel : public QAbstractItemModel
     Q_OBJECT
 
 public:
-    TreeModel(const QString &data, QObject *parent = 0);
+    explicit TreeModel(const QString &data, QObject *parent = 0);
     ~TreeModel();
 
     QVariant data(const QModelIndex &index, int role) const;
diff --git a/examples/widgets/itemviews/stardelegate/starrating.h b/examples/widgets/itemviews/stardelegate/starrating.h
index 04fae2509a..54de31989b 100644
--- a/examples/widgets/itemviews/stardelegate/starrating.h
+++ b/examples/widgets/itemviews/stardelegate/starrating.h
@@ -51,7 +51,7 @@ class StarRating
 public:
     enum EditMode { Editable, ReadOnly };
 
-    StarRating(int starCount = 1, int maxStarCount = 5);
+    explicit StarRating(int starCount = 1, int maxStarCount = 5);
 
     void paint(QPainter *painter, const QRect &rect,
                const QPalette &palette, EditMode mode) const;
diff --git a/examples/widgets/layouts/borderlayout/borderlayout.h b/examples/widgets/layouts/borderlayout/borderlayout.h
index 937517dc17..91f927bb21 100644
--- a/examples/widgets/layouts/borderlayout/borderlayout.h
+++ b/examples/widgets/layouts/borderlayout/borderlayout.h
@@ -50,7 +50,7 @@ class BorderLayout : public QLayout
 public:
     enum Position { West, North, South, East, Center };
 
-    BorderLayout(QWidget *parent, int margin = 0, int spacing = -1);
+    explicit BorderLayout(QWidget *parent, int margin = 0, int spacing = -1);
     BorderLayout(int spacing = -1);
     ~BorderLayout();
 
diff --git a/examples/widgets/layouts/flowlayout/flowlayout.h b/examples/widgets/layouts/flowlayout/flowlayout.h
index 2a27f93772..2b98f000f1 100644
--- a/examples/widgets/layouts/flowlayout/flowlayout.h
+++ b/examples/widgets/layouts/flowlayout/flowlayout.h
@@ -48,8 +48,8 @@
 class FlowLayout : public QLayout
 {
 public:
-    FlowLayout(QWidget *parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
-    FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
+    explicit FlowLayout(QWidget *parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
+    explicit FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
     ~FlowLayout();
 
     void addItem(QLayoutItem *item);
diff --git a/examples/widgets/mainwindows/mainwindow/colorswatch.h b/examples/widgets/mainwindows/mainwindow/colorswatch.h
index 794a69cd6c..95facc568f 100644
--- a/examples/widgets/mainwindows/mainwindow/colorswatch.h
+++ b/examples/widgets/mainwindows/mainwindow/colorswatch.h
@@ -79,7 +79,7 @@ class ColorSwatch : public QDockWidget
     QAction *windowModifiedAction;
 
 public:
-    ColorSwatch(const QString &colorName, QWidget *parent = 0, Qt::WindowFlags flags = 0);
+    explicit ColorSwatch(const QString &colorName, QWidget *parent = 0, Qt::WindowFlags flags = 0);
 
     QMenu *menu;
     void setCustomSizeHint(const QSize &size);
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);
diff --git a/examples/widgets/widgets/calculator/button.h b/examples/widgets/widgets/calculator/button.h
index 50874ea574..d84d7e92e8 100644
--- a/examples/widgets/widgets/calculator/button.h
+++ b/examples/widgets/widgets/calculator/button.h
@@ -49,7 +49,7 @@ class Button : public QToolButton
     Q_OBJECT
 
 public:
-    Button(const QString &text, QWidget *parent = 0);
+    explicit Button(const QString &text, QWidget *parent = 0);
 
     QSize sizeHint() const;
 };
diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.h b/examples/widgets/widgets/elidedlabel/elidedlabel.h
index 2c19589bc2..118c8c2741 100644
--- a/examples/widgets/widgets/elidedlabel/elidedlabel.h
+++ b/examples/widgets/widgets/elidedlabel/elidedlabel.h
@@ -55,7 +55,7 @@ class ElidedLabel : public QFrame
     Q_PROPERTY(bool isElided READ isElided)
 
 public:
-    ElidedLabel(const QString &text, QWidget *parent = 0);
+    explicit ElidedLabel(const QString &text, QWidget *parent = 0);
 
     void setText(const QString &text);
     const QString & text() const { return content; }
diff --git a/examples/widgets/widgets/wiggly/dialog.h b/examples/widgets/widgets/wiggly/dialog.h
index 84167d9153..e6117f8ee2 100644
--- a/examples/widgets/widgets/wiggly/dialog.h
+++ b/examples/widgets/widgets/wiggly/dialog.h
@@ -49,7 +49,7 @@ class Dialog : public QDialog
     Q_OBJECT
 
 public:
-    Dialog(QWidget *parent = 0, bool smallScreen = false);
+    explicit Dialog(QWidget *parent = 0, bool smallScreen = false);
 };
 //! [0]