QmlDesigner: Add visibily to ItemLibraryItem

Change-Id: I5fa1b249e6a2d317e06ed9ff04597de590228f86
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>

src/plugins/qmldesigner/components/itemlibrary/itemlibraryitem.cpp

@@ -75,4 +75,19 @@ void ItemLibraryItem::setItemIconSize(const QSize &itemIconSize)
     m_iconSize = itemIconSize;
     setItemIconPath(m_iconPath);
 }
+
+bool ItemLibraryItem::setVisible(bool isVisible)
+{
+    if (isVisible != m_isVisible) {
+        m_isVisible = isVisible;
+        return true;
+    }
+
+    return false;
+}
+
+bool ItemLibraryItem::isVisible() const
+{
+    return m_isVisible;
+}
 } // namespace QmlDesigner

src/plugins/qmldesigner/components/itemlibrary/itemlibraryitem.h

@@ -58,8 +58,12 @@ public:
     void setItemIconPath(const QString &iconPath);
     void setItemIconSize(const QSize &itemIconSize);
 
+    bool setVisible(bool isVisible);
+    bool isVisible() const;
+
 private:
     int m_libId;
+    bool m_isVisible;
     QString m_name;
     QString m_iconPath;
     QSize m_iconSize;