add missing API that is asked for often enough

svn path=/trunk/KDE/kdelibs/; revision=1161784

widgets/combobox.cpp

@@ -157,6 +157,8 @@ void ComboBox::setNativeWidget(KComboBox *nativeWidget)
     }
 
     connect(nativeWidget, SIGNAL(activated(const QString &)), this, SIGNAL(activated(const QString &)));
+    connect(nativeWidget, SIGNAL(currentIndexChanged(int)),
+            this, SIGNAL(currentIndexChanged(int)));
     connect(nativeWidget, SIGNAL(currentIndexChanged(const QString &)),
             this, SIGNAL(textChanged(const QString &)));
 
@@ -320,6 +322,16 @@ void ComboBox::mousePressEvent(QGraphicsSceneMouseEvent *event)
     QGraphicsProxyWidget::mousePressEvent(event);
 }
 
+int ComboBox::count() const
+{
+    return nativeWidget()->count();
+}
+
+int ComboBox::currentIndex() const
+{
+    return nativeWidget()->currentIndex();
+}
+
 } // namespace Plasma
 
 #include <combobox.moc>

widgets/combobox.h

@@ -44,6 +44,8 @@ class PLASMA_EXPORT ComboBox : public QGraphicsProxyWidget
     Q_PROPERTY(QString text READ text NOTIFY textChanged)
     Q_PROPERTY(QString styleSheet READ styleSheet WRITE setStyleSheet)
     Q_PROPERTY(KComboBox *nativeWidget READ nativeWidget WRITE setNativeWidget)
+    Q_PROPERTY(int count READ count)
+    Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentIndexChanged)
 
 public:
     explicit ComboBox(QGraphicsWidget *parent = 0);
@@ -85,6 +87,18 @@ public:
      */
     Q_INVOKABLE void addItem(const QString &text);
 
+    /**
+     * Returns the number of items in the combo box
+     * @since 4.6
+     */
+    int count() const;
+
+    /**
+     * Returns the current index of the combobox
+     * @since 4.6
+     */
+    int currentIndex() const;
+
 public Q_SLOTS:
     void clear();
 
@@ -102,6 +116,12 @@ Q_SIGNALS:
      */
     void textChanged(const QString &text);
 
+    /**
+     * This signal is sent whenever the currentIndex in the combobox changes 
+     * either through user interaction or programmatically. 
+     */
+    void currentIndexChanged(int index);
+
 protected:
     void resizeEvent(QGraphicsSceneResizeEvent *event);
     void paint(QPainter *painter,