#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() {
+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);
init(filter);
-
}
-ChatView::ChatView(MessageFilter *filter, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
+ChatView::ChatView(MessageFilter *filter, QWidget *parent)
+ : QGraphicsView(parent),
+ AbstractChatView()
+{
init(filter);
}
setInteractive(true);
_scene = new ChatScene(filter, filter->idString(), this);
- connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
+ connect(_scene, SIGNAL(heightChangedAt(qreal, qreal)), this, SLOT(sceneHeightChangedAt(qreal, qreal)));
setScene(_scene);
- connect(verticalScrollBar(), SIGNAL(sliderPressed()), this, SLOT(sliderPressed()));
- connect(verticalScrollBar(), SIGNAL(sliderReleased()), this, SLOT(sliderReleased()));
+ _lastScrollbarPos = 0;
connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
}
-ChatView::~ChatView() {
-
-}
-
-ChatScene *ChatView::scene() const {
- return _scene;
-}
-
-void ChatView::clear() {
-
-}
-
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::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?)
+void ChatView::sceneHeightChangedAt(qreal ypos, qreal hdiff) {
setSceneRect(scene()->sceneRect());
- if(scrollable) verticalScrollBar()->setValue(verticalScrollBar()->maximum());
-}
-
-void ChatView::setBufferForBacklogFetching(BufferId id) {
- scene()->setBufferForBacklogFetching(id);
-}
-
-void ChatView::sliderPressed() {
- verticalScrollbarChanged(verticalScrollBar()->value());
-}
-
-void ChatView::sliderReleased() {
- if(scene()->isFetchingBacklog()) scene()->setIsFetchingBacklog(false);
+ 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::verticalScrollbarChanged(int newPos) {
- Q_UNUSED(newPos);
- if(!scene()->isBacklogFetchingEnabled()) return;
-
QAbstractSlider *vbar = verticalScrollBar();
- if(!vbar)
- return;
- if(vbar->isSliderDown()) {
- /*
+ 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());
- scene()->setIsFetchingBacklog(relativePos < 20);
- */
- scene()->setIsFetchingBacklog(vbar->value() == vbar->minimum());
+
+ if(relativePos < 20) {
+ scene()->requestBacklog();
+ }
}
+ _lastScrollbarPos = newPos;
+}
+
+MsgId ChatView::lastMsgId() const {
+ if(!scene())
+ return MsgId();
+
+ QAbstractItemModel *model = scene()->model();
+ if(!model || model->rowCount() == 0)
+ return MsgId();
+
+ return model->data(model->index(model->rowCount() - 1, 0), MessageModel::MsgIdRole).value<MsgId>();
}