fixing speed up aftermath

[quassel.git] / src / qtui / chatview.cpp

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index 6b2d1f5..fe196d0 100644 (file)
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -47,7 +47,7 @@ ChatView::ChatView(MessageFilter *filter, QWidget *parent)
 
 void ChatView::init(MessageFilter *filter) {
   setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-  // setAlignment(Qt::AlignBottom);
+  setAlignment(Qt::AlignBottom);
   setInteractive(true);
   setOptimizationFlags(QGraphicsView::DontClipPainter | QGraphicsView::DontAdjustForAntialiasing);
   setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
@@ -55,7 +55,7 @@ void ChatView::init(MessageFilter *filter) {
 
   _scene = new ChatScene(filter, filter->idString(), viewport()->width() - 2, this); // see below: resizeEvent()
   connect(_scene, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(sceneRectChanged(const QRectF &)));
-  //connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *)), this, SLOT(lastLineChanged(QGraphicsItem *)));
+  connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *)), this, SLOT(lastLineChanged(QGraphicsItem *)));
   setScene(_scene);
 
   connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
@@ -72,17 +72,18 @@ void ChatView::resizeEvent(QResizeEvent *event) {
 }
 
 void ChatView::lastLineChanged(QGraphicsItem *chatLine) {
-  // FIXME: if vbar offset < chatline height -> centerOn(chatLine);
-  centerOn(chatLine);
+  QAbstractSlider *vbar = verticalScrollBar();
+  Q_ASSERT(vbar);
+  if(vbar->maximum() - vbar->value() <= chatLine->boundingRect().height() + 5) { // 5px grace area
+    vbar->setValue(vbar->maximum());
+  }
 }
 
 void ChatView::verticalScrollbarChanged(int newPos) {
   QAbstractSlider *vbar = verticalScrollBar();
   Q_ASSERT(vbar);
 
-  if(vbar->maximum() - vbar->value() <= 5) // FIXME workaround the fact that the view gets scrolled up a few px on buffer change
-    vbar->setValue(vbar->maximum());
-
+  // check for backlog request
   if(newPos < _lastScrollbarPos) {
     int relativePos = 100;
     if(vbar->maximum() - vbar->minimum() != 0)