X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatview.cpp;h=dbddaaa7ced5505570002304a7e98a33fc581465;hp=eeaaf56519cc836a94e011adc0cab33e209a4bd3;hb=94be5fb31afd8f3befa8cb2cf1b3c2e5ef3cdba5;hpb=39e2a78383295f86c5aa2dadbeac6f02b53eb7a4

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index eeaaf565..dbddaaa7 100644
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -29,31 +29,36 @@
 #include "messagefilter.h"
 #include "quasselui.h"
 
-ChatView::ChatView(Buffer *buf, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
-  setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-  setOptimizationFlags(QGraphicsView::DontClipPainter
-      |QGraphicsView::DontSavePainterState
-      |QGraphicsView::DontAdjustForAntialiasing);
-  setAlignment(Qt::AlignBottom);
-  setInteractive(true);
-
+ChatView::ChatView(Buffer *buf, QWidget *parent)
+  : QGraphicsView(parent),
+    AbstractChatView()
+{
   QList<BufferId> filterList;
   filterList.append(buf->bufferInfo().bufferId());
   MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
+  init(filter);
 
-  _scene = new ChatScene(filter, this);
-  connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
-  setScene(_scene);
 }
 
-
-ChatView::~ChatView() {
-
+ChatView::ChatView(MessageFilter *filter, QWidget *parent)
+  : QGraphicsView(parent),
+    AbstractChatView()
+{
+  init(filter);
 }
 
+void ChatView::init(MessageFilter *filter) {
+  setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+  setAlignment(Qt::AlignBottom);
+  setInteractive(true);
 
-ChatScene *ChatView::scene() const {
-  return _scene;
+  _scene = new ChatScene(filter, filter->idString(), this);
+  connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
+  setScene(_scene);
+
+  connect(verticalScrollBar(), SIGNAL(sliderPressed()), this, SLOT(sliderPressed()));
+  connect(verticalScrollBar(), SIGNAL(sliderReleased()), this, SLOT(sliderReleased()));
+  connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
 }
 
 void ChatView::resizeEvent(QResizeEvent *event) {
@@ -63,48 +68,37 @@ void ChatView::resizeEvent(QResizeEvent *event) {
 
 void ChatView::sceneHeightChanged(qreal h) {
   Q_UNUSED(h)
-  bool scrollable = verticalScrollBar()->value() == verticalScrollBar()->maximum();
+  bool scrollable = qAbs(verticalScrollBar()->value() - verticalScrollBar()->maximum()) <= 2; // be a bit tolerant here, also FIXME (why we need this?)
   setSceneRect(scene()->sceneRect());
   if(scrollable) verticalScrollBar()->setValue(verticalScrollBar()->maximum());
 }
 
-void ChatView::clear()
-{
-}
-
-void ChatView::prependMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //prependChatLine(line);
-}
-
-void ChatView::prependChatLine(ChatLine *line) {
-  //qDebug() << "prepending";
-}
-
-void ChatView::prependChatLines(QList<ChatLine *> clist) {
-
+void ChatView::setBufferForBacklogFetching(BufferId id) {
+  scene()->setBufferForBacklogFetching(id);
 }
 
-void ChatView::appendMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //appendChatLine(line);
+void ChatView::sliderPressed() {
+  verticalScrollbarChanged(verticalScrollBar()->value());
 }
 
-void ChatView::appendChatLine(ChatLine *line) {
-  //qDebug() << "appending";
+void ChatView::sliderReleased() {
+  if(scene()->isFetchingBacklog()) scene()->setIsFetchingBacklog(false);
 }
 
-
-void ChatView::appendChatLines(QList<ChatLine *> list) {
-  //foreach(ChatLine *line, list) {
-
-  //}
+void ChatView::verticalScrollbarChanged(int newPos) {
+  Q_UNUSED(newPos);
+  if(!scene()->isBacklogFetchingEnabled()) return;
+
+  QAbstractSlider *vbar = verticalScrollBar();
+  if(!vbar)
+    return;
+  if(vbar->isSliderDown()) {
+    /*
+    int relativePos = 100;
+    if(vbar->maximum() - vbar->minimum() != 0)
+      relativePos = (newPos - vbar->minimum()) * 100 / (vbar->maximum() - vbar->minimum());
+    scene()->setIsFetchingBacklog(relativePos < 20);
+    */
+    scene()->setIsFetchingBacklog(vbar->value() == vbar->minimum());
+  }
 }
-
-void ChatView::setContents(const QList<AbstractUiMsg *> &list) {
-  //qDebug() << "setting" << list.count();
-  //appendChatLines(list);
-}
-