#include <QGraphicsTextItem>
#include <QScrollBar>
-#include "buffer.h"
#include "chatlinemodelitem.h"
#include "chatscene.h"
#include "chatview.h"
#include "messagefilter.h"
#include "quasselui.h"
-ChatView::ChatView(Buffer *buf, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
- setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- 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) {
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);
-}
-