incresead long press interval

src/board/UBBoardController.cpp

@@ -1571,7 +1571,7 @@ void UBBoardController::setActiveDocumentScene(UBDocumentProxy* pDocumentProxy,
     if(documentChange)
     {
         UBGraphicsTextItem::lastUsedTextColor = QColor();
-        emit initThumbnailRequired(this);
+        emit initThumbnailsRequired(this);
     }
 
     if (sceneChange)

src/gui/UBBoardThumbnailsView.cpp

@@ -56,7 +56,7 @@ UBBoardThumbnailsView::UBBoardThumbnailsView(QWidget *parent, const char *name)
     , mDropSource(NULL)
     , mDropTarget(NULL)
     , mDropBar(new QGraphicsRectItem(0))
-    , mLongPressInterval(150)
+    , mLongPressInterval(350)
 {
     setScene(new QGraphicsScene(this));