Fixing BR #419 - Any Action that would normaly trigger a scroll in the

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

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index 4672911..14f508e 100644 (file)
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -45,6 +45,7 @@ ChatView::ChatView(BufferId bufferId, QWidget *parent)
 ChatView::ChatView(MessageFilter *filter, QWidget *parent)
   : QGraphicsView(parent),
     AbstractChatView(),
+    _bufferContainer(0),
     _currentScaleFactor(1)
 {
   init(filter);
@@ -69,11 +70,37 @@ void ChatView::init(MessageFilter *filter) {
   connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *, qreal)), this, SLOT(lastLineChanged(QGraphicsItem *, qreal)));
   connect(_scene, SIGNAL(mouseMoveWhileSelecting(const QPointF &)), this, SLOT(mouseMoveWhileSelecting(const QPointF &)));
   setScene(_scene);
-  // installEventFilter(_scene);
 
   connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
 }
 
+bool ChatView::event(QEvent *event) {
+  if(event->type() == QEvent::KeyPress) {
+    QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
+    switch(keyEvent->key()) {
+    case Qt::Key_Up:
+    case Qt::Key_Down:
+    case Qt::Key_PageUp:
+    case Qt::Key_PageDown:
+      if(!verticalScrollBar()->isVisible()) {
+       scene()->requestBacklog();
+       return true;
+      }
+    default:
+      break;
+    }
+  }
+
+  if(event->type() == QEvent::Wheel) {
+    if(!verticalScrollBar()->isVisible()) {
+      scene()->requestBacklog();
+      return true;
+    }
+  }
+
+  return QGraphicsView::event(event);
+}
+
 void ChatView::resizeEvent(QResizeEvent *event) {
   QGraphicsView::resizeEvent(event);
 
@@ -150,11 +177,11 @@ MsgId ChatView::lastMsgId() const {
   return model->data(model->index(model->rowCount() - 1, 0), MessageModel::MsgIdRole).value<MsgId>();
 }
 
-void ChatView::addActionsToMenu(QMenu *menu) {
+void ChatView::addActionsToMenu(QMenu *menu, const QPointF &pos) {
   // zoom actions
   BufferWidget *bw = qobject_cast<BufferWidget *>(bufferContainer());
   if(bw) {
-    bw->addActionsToMenu(menu);
+    bw->addActionsToMenu(menu, pos);
     menu->addSeparator();
   }
 }