* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#include <QApplication>
+#include <QClipboard>
#include <QGraphicsSceneMouseEvent>
#include <QPersistentModelIndex>
-#include "buffer.h"
#include "chatitem.h"
+#include "chatline.h"
#include "chatlinemodelitem.h"
#include "chatscene.h"
+#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),
+ _lastItem(0),
+ _selectionStart(-1),
+ _isSelecting(false),
+ _fetchingBacklog(false)
{
- _width = 0;
- _selectingItem = 0;
- _isSelecting = 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()));
for(int i = 0; i < model->rowCount(); i++) {
- ChatLine *line = new ChatLine(model->index(i, 0));
+ ChatLine *line = new ChatLine(i, model);
_lines.append(line);
addItem(line);
}
ChatScene::~ChatScene() {
-
}
void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
qreal y = 0;
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(model()->index(i, 0));
+ ChatLine *line = new ChatLine(i, model());
_lines.insert(i, line);
addItem(line);
if(_width > 0) {
h += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
}
}
+ // update existing items
+ for(int i = end+1; i < _lines.count(); i++) {
+ _lines[i]->setRow(i);
+ }
+
if(h > 0) {
_height += h;
for(int i = end+1; i < _lines.count(); i++) {
setSceneRect(QRectF(0, 0, _width, _height));
emit heightChanged(_height);
}
+
+ requestBacklogIfNeeded();
+}
+
+void ChatScene::modelReset() {
+ foreach(ChatLine *line, _lines) {
+ removeItem(line);
+ delete line;
+ }
+ _lines.clear();
+ setSceneRect(QRectF(0, 0, _width, 0));
}
void ChatScene::setWidth(qreal w) {
}
void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
- _selectionStart = _selectionEnd = item->index().row();
- _selectionStartCol = _selectionMinCol = item->index().column();
+ _selectionStart = _selectionEnd = item->row();
+ _selectionStartCol = _selectionMinCol = item->column();
_isSelecting = true;
_lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
updateSelection(item->mapToScene(itemPos));
ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(secondColHandlePos + secondColHandle->width()/2, pos.y())));
if(!contentItem) return;
- int curRow = contentItem->index().row();
+ int curRow = contentItem->row();
int curColumn;
if(pos.x() > secondColHandlePos + secondColHandle->width()/2) curColumn = ChatLineModel::ContentsColumn;
else if(pos.x() > firstColHandlePos) curColumn = ChatLineModel::SenderColumn;
}
void ChatScene::mousePressEvent(QGraphicsSceneMouseEvent *event) {
- qDebug() << "pressed";
- QGraphicsScene::mousePressEvent(event);
+ if(event->buttons() & Qt::LeftButton && _selectionStart >= 0) {
+ for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
+ _lines[l]->setSelected(false);
+ }
+ _selectionStart = -1;
+ event->accept();
+ } else {
+ QGraphicsScene::mousePressEvent(event);
+ }
}
void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
if(_isSelecting) {
+# ifdef Q_WS_X11
+ QApplication::clipboard()->setText(selectionToString(), QClipboard::Selection);
+# endif
+//# else
+ QApplication::clipboard()->setText(selectionToString());
+//# endif
_isSelecting = false;
event->accept();
} else {
}
}
+//!\brief Convert current selection to human-readable string.
+QString ChatScene::selectionToString() const {
+ //TODO Make selection format configurable!
+ if(!_isSelecting) return QString();
+ int start = qMin(_selectionStart, _selectionEnd);
+ int end = qMax(_selectionStart, _selectionEnd);
+ if(start < 0 || end >= _lines.count()) {
+ qDebug() << "Invalid selection range:" << start << end;
+ return QString();
+ }
+ QString result;
+ for(int l = start; l <= end; l++) {
+ if(_selectionMinCol == ChatLineModel::TimestampColumn)
+ result += _lines[l]->item(ChatLineModel::TimestampColumn).data(MessageModel::DisplayRole).toString() + " ";
+ if(_selectionMinCol <= ChatLineModel::SenderColumn)
+ result += _lines[l]->item(ChatLineModel::SenderColumn).data(MessageModel::DisplayRole).toString() + " ";
+ result += _lines[l]->item(ChatLineModel::ContentsColumn).data(MessageModel::DisplayRole).toString() + "\n";
+ }
+ 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();
+ }
+}
+
+int ChatScene::sectionByScenePos(int x) {
+ if(x < firstColHandlePos)
+ return ChatLineModel::TimestampColumn;
+ if(x < secondColHandlePos)
+ return ChatLineModel::SenderColumn;
+
+ return ChatLineModel::ContentsColumn;
+}