X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fqtui%2Fchatview.cpp;h=6e40c0995a52d9093cc0b146de65bf14f5b3ca43;hb=533eaaeda64759c01daa624365b8fc63eeba5ccf;hp=aa623104380ca6b7950a9ec2c576cce8a1a4a6de;hpb=32b5e6447458a8e6e8074c40988b2d06f327094f;p=quassel.git

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index aa623104..6e40c099 100644
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -19,70 +19,98 @@
  ***************************************************************************/
 
 #include <QGraphicsTextItem>
+#include <QScrollBar>
 
 #include "buffer.h"
-#include "chatline.h"
+#include "chatlinemodelitem.h"
 #include "chatscene.h"
 #include "chatview.h"
 #include "client.h"
+#include "messagefilter.h"
 #include "quasselui.h"
 
-ChatView::ChatView(Buffer *buf, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
-  _scene = new ChatScene(Client::messageModel(), this);
-  setScene(_scene);
-
-  //QGraphicsTextItem *item = scene()->addText(buf->bufferInfo().bufferName());
+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);
 
 }
 
-
-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);
 
-void ChatView::clear()
-{
+  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::prependMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //prependChatLine(line);
+void ChatView::resizeEvent(QResizeEvent *event) {
+  scene()->setWidth(event->size().width() - 2);  // FIXME figure out why we have to hardcode the -2 here
+  verticalScrollBar()->setValue(verticalScrollBar()->maximum());
 }
 
-void ChatView::prependChatLine(ChatLine *line) {
-  //qDebug() << "prepending";
+void ChatView::sceneHeightChanged(qreal h) {
+  Q_UNUSED(h)
+  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::prependChatLines(QList<ChatLine *> clist) {
+void ChatView::setBufferForBacklogFetching(BufferId id) {
+  scene()->setBufferForBacklogFetching(id);
+}
 
+void ChatView::sliderPressed() {
+  verticalScrollbarChanged(verticalScrollBar()->value());
 }
 
-void ChatView::appendMsg(AbstractUiMsg *msg) {
-  //ChatLine *line = dynamic_cast<ChatLine*>(msg);
-  //Q_ASSERT(line);
-  //appendChatLine(line);
+void ChatView::sliderReleased() {
+  if(scene()->isFetchingBacklog()) scene()->setIsFetchingBacklog(false);
 }
 
-void ChatView::appendChatLine(ChatLine *line) {
-  //qDebug() << "appending";
+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());
+  }
 }
 
+MsgId ChatView::lastMsgId() const {
+  if(!scene())
+    return MsgId();
 
-void ChatView::appendChatLines(QList<ChatLine *> list) {
-  //foreach(ChatLine *line, list) {
-    
-  //}
-}
+  QAbstractItemModel *model = scene()->model();
+  if(!model || model->rowCount() == 0)
+    return MsgId();
 
-void ChatView::setContents(const QList<AbstractUiMsg *> &list) {
-  //qDebug() << "setting" << list.count();
-  //appendChatLines(list);
+  
+  return model->data(model->index(model->rowCount() - 1, 0), MessageModel::MsgIdRole).value<MsgId>();
 }
-