X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatscene.cpp;h=cb5b3f70fefb137b18e1d3010737314534b15316;hp=1c1dd90f3d538f2eb29eb45659eac81c67907b42;hb=57982f5802c957e768ce842888591115694fcbef;hpb=9dc0131dab77e3d3173906f1f8b14d3447523aea

diff --git a/src/qtui/chatscene.cpp b/src/qtui/chatscene.cpp
index 1c1dd90f..cb5b3f70 100644
--- a/src/qtui/chatscene.cpp
+++ b/src/qtui/chatscene.cpp
@@ -138,6 +138,33 @@ ColumnHandleItem *ChatScene::secondColumnHandle() const {
   return _secondColHandle;
 }
 
+ChatLine *ChatScene::chatLine(MsgId msgId) const {
+  if(!_lines.count())
+    return 0;
+
+  QList<ChatLine*>::ConstIterator start = _lines.begin();
+  QList<ChatLine*>::ConstIterator end = _lines.end();
+  QList<ChatLine*>::ConstIterator middle;
+
+  int n = int(end - start);
+  int half;
+
+  while(n > 0) {
+    half = n >> 1;
+    middle = start + half;
+    if((*middle)->msgId() < msgId) {
+      start = middle + 1;
+      n -= half + 1;
+    } else {
+      n = half;
+    }
+  }
+  if((*start)->msgId() == msgId)
+    return *start;
+
+  return 0;
+}
+
 ChatItem *ChatScene::chatItemAt(const QPointF &scenePos) const {
   ChatLine *line = qgraphicsitem_cast<ChatLine*>(itemAt(scenePos));
   if(line)