X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/25f4e3efbd485d229cecd397502b9734bdbdee36..7bbb858a041d4b31bf3e79d6d7af9d067ffbd018:/src/sidebartreeview.cpp

diff --git a/src/sidebartreeview.cpp b/src/sidebartreeview.cpp
index 8d0b1c73d..52f207a78 100644
--- a/src/sidebartreeview.cpp
+++ b/src/sidebartreeview.cpp
@@ -26,6 +26,7 @@
 #include <QKeyEvent>
 #include <QPainter>
 #include <QHeaderView>
+#include <QScrollBar>
 
 SidebarTreeView::SidebarTreeView(QWidget* parent) :
     QTreeView(parent),
@@ -40,6 +41,8 @@ SidebarTreeView::SidebarTreeView(QWidget* parent) :
     setDragDropMode(QAbstractItemView::DragDrop);
     setDropIndicatorShown(false);
     setAutoExpandDelay(300);
+    setVerticalScrollMode(QListView::ScrollPerPixel);
+    setHorizontalScrollMode(QListView::ScrollPerPixel);
 
     viewport()->setAttribute(Qt::WA_Hover);
 
@@ -69,6 +72,12 @@ bool SidebarTreeView::event(QEvent* event)
         hideColumn(DolphinModel::Tags);
         header()->hide();
     }
+    else if (event->type() == QEvent::UpdateRequest) {
+        // a wheel movement will scroll 1 item
+        if (model()->rowCount() > 0) {
+            verticalScrollBar()->setSingleStep(sizeHintForRow(0) / 3);
+        }
+    }
 
     return QTreeView::event(event);
 }