#include "client.h"
#include "clientbacklogmanager.h"
#include "columnhandleitem.h"
+#include "messagefilter.h"
#include "qtui.h"
#include "qtuisettings.h"
ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, QObject *parent)
: QGraphicsScene(parent),
- _idString(idString),
- _model(model)
+ _idString(idString),
+ _width(0),
+ _height(0),
+ _model(model),
+ _singleBufferScene(false),
+ _selectingItem(0),
+ _selectionStart(-1),
+ _isSelecting(false),
+ _lastBacklogSize(0)
{
- _width = 0;
- _selectingItem = 0;
- _isSelecting = false;
- _selectionStart = -1;
- _fetchingBacklog = false;
+ MessageFilter *filter = qobject_cast<MessageFilter*>(model);
+ if(filter) {
+ _singleBufferScene = filter->isSingleBufferFilter();
+ }
connect(this, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(rectChanged(const QRectF &)));
- connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)), this, SLOT(rowsInserted(const QModelIndex &, int, int)));
- connect(model, SIGNAL(modelAboutToBeReset()), this, SLOT(modelReset()));
+ connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
+ this, SLOT(rowsInserted(const QModelIndex &, int, int)));
+ connect(model, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
+ this, SLOT(rowsAboutToBeRemoved(const QModelIndex &, int, int)));
+
for(int i = 0; i < model->rowCount(); i++) {
ChatLine *line = new ChatLine(i, model);
_lines.append(line);
}
ChatScene::~ChatScene() {
-
}
void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
// TODO bulk inserts, iterators
qreal h = 0;
qreal y = 0;
- if(_width && start > 0) y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
+ if(_width && start > 0)
+ y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
+
for(int i = start; i <= end; i++) {
ChatLine *line = new ChatLine(i, model());
_lines.insert(i, line);
_lines[i]->setRow(i);
}
+ // update selection
+ if(_selectionStart >= 0) {
+ int offset = end - start + 1;
+ if(_selectionStart >= start) _selectionStart += offset;
+ if(_selectionEnd >= start) _selectionEnd += offset;
+ if(_firstSelectionRow >= start) _firstSelectionRow += offset;
+ if(_lastSelectionRow >= start) _lastSelectionRow += offset;
+ }
+
if(h > 0) {
_height += h;
for(int i = end+1; i < _lines.count(); i++) {
- _lines.value(i)->moveBy(0, h);
+ _lines.at(i)->moveBy(0, h);
}
setSceneRect(QRectF(0, 0, _width, _height));
emit heightChanged(_height);
}
-
- requestBacklogIfNeeded();
}
-void ChatScene::modelReset() {
- foreach(ChatLine *line, _lines) {
- removeItem(line);
- delete line;
+void ChatScene::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
+ Q_UNUSED(parent);
+
+ qreal h = 0; // total height of removed items;
+
+ // remove items from scene
+ QList<ChatLine *>::iterator lineIter = _lines.begin() + start;
+ int lineCount = start;
+ while(lineIter != _lines.end() && lineCount <= end) {
+ h += (*lineIter)->height();
+ delete *lineIter;
+ lineIter = _lines.erase(lineIter);
+ lineCount++;
+ }
+
+ // update rows of remaining chatlines
+ for(int i = start; i < _lines.count(); i++) {
+ _lines.at(i)->setRow(i);
+ }
+
+ // update selection
+ if(_selectionStart >= 0) {
+ int offset = end - start + 1;
+ if(_selectionStart >= start)
+ _selectionStart -= offset;
+ if(_selectionEnd >= start)
+ _selectionEnd -= offset;
+ if(_firstSelectionRow >= start)
+ _firstSelectionRow -= offset;
+ if(_lastSelectionRow >= start)
+ _lastSelectionRow -= offset;
+ }
+
+ // reposition remaining chatlines
+ if(h > 0) {
+ Q_ASSERT(_height >= h);
+ _height -= h;
+ for(int i = start; i < _lines.count(); i++) {
+ _lines.at(i)->moveBy(0, -h);
+ }
+ setSceneRect(QRectF(0, 0, _width, _height));
+ emit heightChanged(_height);
}
- _lines.clear();
- setSceneRect(QRectF(0, 0, _width, 0));
}
void ChatScene::setWidth(qreal w) {
}
void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
- _selectionStart = _selectionEnd = item->row();
+ _selectionStart = _selectionEnd = _lastSelectionRow = _firstSelectionRow = item->row();
_selectionStartCol = _selectionMinCol = item->column();
_isSelecting = true;
_lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
_lines[l]->setSelected(true, minColumn);
}
}
-
- if(curRow > _selectionEnd && curRow > _selectionStart) { // select further towards bottom
- for(int l = _selectionEnd + 1; l <= curRow; l++) {
+ int newstart = qMin(curRow, _firstSelectionRow);
+ int newend = qMax(curRow, _firstSelectionRow);
+ if(newstart < _selectionStart) {
+ for(int l = newstart; l < _selectionStart; l++)
_lines[l]->setSelected(true, minColumn);
- }
- } else if(curRow > _selectionEnd && curRow <= _selectionStart) { // deselect towards bottom
- for(int l = _selectionEnd; l < curRow; l++) {
- _lines[l]->setSelected(false);
- }
- } else if(curRow < _selectionEnd && curRow >= _selectionStart) {
- for(int l = _selectionEnd; l > curRow; l--) {
+ }
+ if(newstart > _selectionStart) {
+ for(int l = _selectionStart; l < newstart; l++)
_lines[l]->setSelected(false);
- }
- } else if(curRow < _selectionEnd && curRow < _selectionStart) {
- for(int l = _selectionEnd - 1; l >= curRow; l--) {
+ }
+ if(newend > _selectionEnd) {
+ for(int l = _selectionEnd+1; l <= newend; l++)
_lines[l]->setSelected(true, minColumn);
- }
}
- _selectionEnd = curRow;
+ if(newend < _selectionEnd) {
+ for(int l = newend+1; l <= _selectionEnd; l++)
+ _lines[l]->setSelected(false);
+ }
+
+ _selectionStart = newstart;
+ _selectionEnd = newend;
+ _lastSelectionRow = curRow;
- if(curRow == _selectionStart && minColumn == ChatLineModel::ContentsColumn) {
+ if(newstart == newend && minColumn == ChatLineModel::ContentsColumn) {
_lines[curRow]->setSelected(false);
_isSelecting = false;
+ Q_ASSERT(_selectingItem); // this seems to not always be true, but I have no idea why
+ // adding this assert to make sure the occasional segfault is caused by this
_selectingItem->continueSelecting(_selectingItem->mapFromScene(pos));
}
}
void ChatScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
- if(_isSelecting && event->buttons() & Qt::LeftButton) {
+ if(_isSelecting && event->buttons() == Qt::LeftButton) {
updateSelection(event->scenePos());
event->accept();
} else {
}
void ChatScene::mousePressEvent(QGraphicsSceneMouseEvent *event) {
- if(event->buttons() & Qt::LeftButton && _selectionStart >= 0) {
+ if(event->buttons() == Qt::LeftButton && _selectionStart >= 0) {
for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
_lines[l]->setSelected(false);
}
}
void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
- if(_isSelecting) {
-# ifdef Q_WS_X11
- QApplication::clipboard()->setText(selectionToString(), QClipboard::Selection);
-# endif
-//# else
- QApplication::clipboard()->setText(selectionToString());
-//# endif
+ if(_isSelecting && !event->buttons() & Qt::LeftButton) {
+ putToClipboard(selectionToString());
_isSelecting = false;
event->accept();
} else {
}
}
+void ChatScene::putToClipboard(const QString &selection) {
+ // TODO Configure clipboards
+# ifdef Q_WS_X11
+ QApplication::clipboard()->setText(selection, QClipboard::Selection);
+# endif
+//# else
+ QApplication::clipboard()->setText(selection);
+//# endif
+}
+
//!\brief Convert current selection to human-readable string.
QString ChatScene::selectionToString() const {
//TODO Make selection format configurable!
return result;
}
-void ChatScene::setIsFetchingBacklog(bool fetch) {
- if(!isBacklogFetchingEnabled()) return;
-
- if(!fetch) {
- _fetchingBacklog = false;
- } else {
- _fetchingBacklog = true;
- requestBacklogIfNeeded();
- }
-}
-
-void ChatScene::requestBacklogIfNeeded() {
- const int REQUEST_COUNT = 50;
-
- if(!isBacklogFetchingEnabled() || !isFetchingBacklog() || !model()->rowCount()) return;
-
- MsgId msgId = model()->data(model()->index(0, 0), ChatLineModel::MsgIdRole).value<MsgId>();
- if(!_lastBacklogOffset.isValid() || (msgId < _lastBacklogOffset && _lastBacklogSize + REQUEST_COUNT <= model()->rowCount())) {
- Client::backlogManager()->requestBacklog(bufferForBacklogFetching(), REQUEST_COUNT, msgId.toInt());
- _lastBacklogOffset = msgId;
- _lastBacklogSize = model()->rowCount();
+void ChatScene::requestBacklog() {
+ static const int REQUEST_COUNT = 50;
+ int backlogSize = model()->rowCount();
+ if(isSingleBufferScene() && backlogSize != 0 && _lastBacklogSize + REQUEST_COUNT <= backlogSize) {
+ QModelIndex msgIdx = model()->index(0, 0);
+ MsgId msgId = model()->data(msgIdx, ChatLineModel::MsgIdRole).value<MsgId>();
+ BufferId bufferId = model()->data(msgIdx, ChatLineModel::BufferIdRole).value<BufferId>();
+ _lastBacklogSize = backlogSize;
+ Client::backlogManager()->requestBacklog(bufferId, REQUEST_COUNT, msgId.toInt());
}
}
projects / quassel.git / blobdiff