X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatview.cpp;h=96e8d9443c52f0315c07b186282a63f45526a091;hp=eeaaf56519cc836a94e011adc0cab33e209a4bd3;hb=bcb94767ec585a25b83bfb7a4e236fb40cc32570;hpb=39e2a78383295f86c5aa2dadbeac6f02b53eb7a4

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index eeaaf565..96e8d944 100644
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -21,7 +21,6 @@
 #include <QGraphicsTextItem>
 #include <QScrollBar>
 
-#include "buffer.h"
 #include "chatlinemodelitem.h"
 #include "chatscene.h"
 #include "chatview.h"
@@ -29,31 +28,34 @@
 #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(BufferId bufferId, QWidget *parent)
+  : QGraphicsView(parent),
+    AbstractChatView()
+{
   QList<BufferId> filterList;
-  filterList.append(buf->bufferInfo().bufferId());
+  filterList.append(bufferId);
   MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
-
-  _scene = new ChatScene(filter, this);
-  connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
-  setScene(_scene);
+  init(filter);
 }
 
-
-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);
+
+  _scene = new ChatScene(filter, filter->idString(), this);
+  connect(_scene, SIGNAL(heightChangedAt(qreal, qreal)), this, SLOT(sceneHeightChangedAt(qreal, qreal)));
+  setScene(_scene);
 
-ChatScene *ChatView::scene() const {
-  return _scene;
+  _lastScrollbarPos = 0;
+  connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
 }
 
 void ChatView::resizeEvent(QResizeEvent *event) {
@@ -61,50 +63,40 @@ void ChatView::resizeEvent(QResizeEvent *event) {
   verticalScrollBar()->setValue(verticalScrollBar()->maximum());
 }
 
-void ChatView::sceneHeightChanged(qreal h) {
-  Q_UNUSED(h)
-  bool scrollable = verticalScrollBar()->value() == verticalScrollBar()->maximum();
+void ChatView::sceneHeightChangedAt(qreal ypos, qreal hdiff) {
   setSceneRect(scene()->sceneRect());
-  if(scrollable) verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+  int y = mapFromScene(0, ypos).y();
+  if(y <= viewport()->height() + 2) {  // be a bit tolerant here, also FIXME (why we need the 2px?)
+    verticalScrollBar()->setValue(verticalScrollBar()->value() + hdiff);
+  }
 }
 
-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::verticalScrollbarChanged(int newPos) {
+  QAbstractSlider *vbar = verticalScrollBar();
+  Q_ASSERT(vbar);
+  
+  // FIXME dirty hack to battle the "I just scroll up a pixel on hide()/show()" problem
+  if(vbar->maximum() - vbar->value() < 5) vbar->setValue(vbar->maximum()); 
+
+  if(newPos < _lastScrollbarPos) {
+    int relativePos = 100;
+    if(vbar->maximum() - vbar->minimum() != 0)
+      relativePos = (newPos - vbar->minimum()) * 100 / (vbar->maximum() - vbar->minimum());
+
+    if(relativePos < 20) {
+      scene()->requestBacklog();
+    }
+  }
+  _lastScrollbarPos = newPos;
 }
 
-void ChatView::prependChatLines(QList<ChatLine *> clist) {
-
-}
+MsgId ChatView::lastMsgId() const {
+  if(!scene())
+    return MsgId();
 
-void ChatView::appendMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //appendChatLine(line);
-}
+  QAbstractItemModel *model = scene()->model();
+  if(!model || model->rowCount() == 0)
+    return MsgId();
 
-void ChatView::appendChatLine(ChatLine *line) {
-  //qDebug() << "appending";
+  return model->data(model->index(model->rowCount() - 1, 0), MessageModel::MsgIdRole).value<MsgId>();
 }
-
-
-void ChatView::appendChatLines(QList<ChatLine *> list) {
-  //foreach(ChatLine *line, list) {
-
-  //}
-}
-
-void ChatView::setContents(const QList<AbstractUiMsg *> &list) {
-  //qDebug() << "setting" << list.count();
-  //appendChatLines(list);
-}
-