X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;f=src%2Fqtui%2Fchatview.cpp;h=20b25e0e89606fc8cbc5f68199424e268c0d4ba6;hb=1f58e3506add8dc546c1e98367dce2cd24e5773d;hp=b40b29009c023b45a75920936c45764e7bdcbecb;hpb=777799ecd614503b20c0fc9d31223556ecc6078b;p=quassel.git

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index b40b2900..20b25e0e 100644
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -80,7 +80,7 @@ void ChatView::init(MessageFilter *filter)
     setScene(_scene);
 
     connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
-    _lastScrollbarPos = verticalScrollBar()->value();
+    _lastScrollbarPos = verticalScrollBar()->maximum();
 
     connect(Client::networkModel(), SIGNAL(markerLineSet(BufferId, MsgId)), SLOT(markerLineSet(BufferId, MsgId)));
 
@@ -126,11 +126,26 @@ bool ChatView::event(QEvent *event)
 
 void ChatView::resizeEvent(QResizeEvent *event)
 {
+    // if view is currently scrolled to bottom, we want it that way after resizing
+    bool atBottom = (_lastScrollbarPos == verticalScrollBar()->maximum());
+
     QGraphicsView::resizeEvent(event);
 
+    // if scrolling to bottom, do it immediately.
+    if(atBottom)
+    {
+        // we can reduce viewport updates if we scroll to the bottom allready at the beginning
+        verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+    }
+
     scene()->updateForViewport(viewport()->width(), viewport()->height());
     adjustSceneRect();
 
+    if(atBottom)
+    {
+        _lastScrollbarPos = verticalScrollBar()->maximum();
+        verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+    }
     checkChatLineCaches();
 }