Examples: Add Q_DECL_OVERRIDE to overridden functions

Q_DECL_OVERRIDE (which expands to 'override' for supported compiler)
helps to declare the intent (that it is an overridden function) and
force compilation error when there is no such virtual function in the
base class.
The examples should show the best practice of having it, as it may save
the programmer quite some time in case of change of API or typo in the
function name or arguments.

This change was done automatically with
clang-modernize -add-override -override-macros

And fixed MSVC compilation by removing inline for TorrentViewDelegate::paint

Change-Id: Ice66ae93fae571266f908703d5b8892b2c1ebb1a
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>

4 files changed, 14 insertions, 14 deletions

diff --git a/examples/widgets/graphicsview/diagramscene/arrow.h b/examples/widgets/graphicsview/diagramscene/arrow.h
index a8c81aee5f..80a5d23635 100644
--- a/examples/widgets/graphicsview/diagramscene/arrow.h
+++ b/examples/widgets/graphicsview/diagramscene/arrow.h
@@ -63,9 +63,9 @@ public:
     Arrow(DiagramItem *startItem, DiagramItem *endItem,
       QGraphicsItem *parent = 0);
 
-    int type() const { return Type; }
-    QRectF boundingRect() const;
-    QPainterPath shape() const;
+    int type() const Q_DECL_OVERRIDE { return Type; }
+    QRectF boundingRect() const Q_DECL_OVERRIDE;
+    QPainterPath shape() const Q_DECL_OVERRIDE;
     void setColor(const QColor &color) { myColor = color; }
     DiagramItem *startItem() const { return myStartItem; }
     DiagramItem *endItem() const { return myEndItem; }
@@ -73,7 +73,7 @@ public:
     void updatePosition();
 
 protected:
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
 
 private:
     DiagramItem *myStartItem;
diff --git a/examples/widgets/graphicsview/diagramscene/diagramitem.h b/examples/widgets/graphicsview/diagramscene/diagramitem.h
index 6681d9b548..af13f76e7e 100644
--- a/examples/widgets/graphicsview/diagramscene/diagramitem.h
+++ b/examples/widgets/graphicsview/diagramscene/diagramitem.h
@@ -75,11 +75,11 @@ public:
     QPolygonF polygon() const { return myPolygon; }
     void addArrow(Arrow *arrow);
     QPixmap image() const;
-    int type() const { return Type;}
+    int type() const Q_DECL_OVERRIDE { return Type;}
 
 protected:
-    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
-    QVariant itemChange(GraphicsItemChange change, const QVariant &value);
+    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) Q_DECL_OVERRIDE;
+    QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;
 
 private:
     DiagramType myDiagramType;
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.h b/examples/widgets/graphicsview/diagramscene/diagramscene.h
index a28eba99e8..17666e208c 100644
--- a/examples/widgets/graphicsview/diagramscene/diagramscene.h
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.h
@@ -85,9 +85,9 @@ signals:
     void itemSelected(QGraphicsItem *item);
 
 protected:
-    void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
-    void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
+    void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent) Q_DECL_OVERRIDE;
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent) Q_DECL_OVERRIDE;
 
 private:
     bool isItemChange(int type);
diff --git a/examples/widgets/graphicsview/diagramscene/diagramtextitem.h b/examples/widgets/graphicsview/diagramscene/diagramtextitem.h
index 8041ccb53c..6a6015fdec 100644
--- a/examples/widgets/graphicsview/diagramscene/diagramtextitem.h
+++ b/examples/widgets/graphicsview/diagramscene/diagramtextitem.h
@@ -61,16 +61,16 @@ public:
 
     DiagramTextItem(QGraphicsItem *parent = 0);
 
-    int type() const { return Type; }
+    int type() const Q_DECL_OVERRIDE { return Type; }
 
 signals:
     void lostFocus(DiagramTextItem *item);
     void selectedChange(QGraphicsItem *item);
 
 protected:
-    QVariant itemChange(GraphicsItemChange change, const QVariant &value);
-    void focusOutEvent(QFocusEvent *event);
-    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
+    QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;
+    void focusOutEvent(QFocusEvent *event) Q_DECL_OVERRIDE;
+    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
 };
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