* 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 "quasselui.h"
+#include "client.h"
+#include "clientbacklogmanager.h"
+#include "columnhandleitem.h"
+#include "messagefilter.h"
+#include "qtui.h"
+#include "qtuisettings.h"
-ChatScene::ChatScene(Buffer *buf, QObject *parent) : QGraphicsScene(parent) {
- _buffer = buf;
+const qreal minContentsWidth = 200;
- foreach(AbstractUiMsg *msg, buf->contents()) {
- appendMsg(msg);
+ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, QObject *parent)
+ : QGraphicsScene(parent),
+ _idString(idString),
+ _width(0),
+ _height(0),
+ _model(model),
+ _singleBufferScene(false),
+ _selectingItem(0),
+ _selectionStart(-1),
+ _isSelecting(false),
+ _lastBacklogSize(0)
+{
+ MessageFilter *filter = qobject_cast<MessageFilter*>(model);
+ if(filter) {
+ _singleBufferScene = filter->isSingleBufferFilter();
}
- connect(buf, SIGNAL(msgAppended(AbstractUiMsg *)), this, SLOT(appendMsg(AbstractUiMsg *)));
- connect(buf, SIGNAL(msgPrepended(AbstractUiMsg *)), this, SLOT(prependMsg(AbstractUiMsg *)));
+
+ 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(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);
+ addItem(line);
+ }
+
+ QtUiSettings s;
+ int defaultFirstColHandlePos = s.value("ChatView/DefaultFirstColumnHandlePos", 80).toInt();
+ int defaultSecondColHandlePos = s.value("ChatView/DefaultSecondColumnHandlePos", 200).toInt();
+
+ firstColHandlePos = s.value(QString("ChatView/%1/FirstColumnHandlePos").arg(_idString),
+ defaultFirstColHandlePos).toInt();
+ secondColHandlePos = s.value(QString("ChatView/%1/SecondColumnHandlePos").arg(_idString),
+ defaultSecondColHandlePos).toInt();
+
+ firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator()); addItem(firstColHandle);
+ secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator()); addItem(secondColHandle);
+
+ connect(firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+ connect(secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+
+ firstColHandle->setXPos(firstColHandlePos);
+ firstColHandle->setXLimits(0, secondColHandlePos);
+ secondColHandle->setXPos(secondColHandlePos);
+ secondColHandle->setXLimits(firstColHandlePos, width() - minContentsWidth);
+
+ emit heightChanged(height());
}
ChatScene::~ChatScene() {
+}
+
+void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
+ Q_UNUSED(index);
+ // maybe make this more efficient by prepending stuff with negative yval
+ // dunno if that's worth not guranteeing that 0 is on the top...
+ // 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();
+
+ for(int i = start; i <= end; i++) {
+ ChatLine *line = new ChatLine(i, model());
+ _lines.insert(i, line);
+ addItem(line);
+ if(_width > 0) {
+ line->setPos(0, y+h);
+ h += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
+ }
+ }
+ // update existing items
+ for(int i = end+1; i < _lines.count(); i++) {
+ _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.at(i)->moveBy(0, h);
+ }
+ setSceneRect(QRectF(0, 0, _width, _height));
+ emit heightChanged(_height);
+ }
+}
+
+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);
+ }
+}
+
+void ChatScene::setWidth(qreal w) {
+ _width = w;
+ _height = 0;
+ foreach(ChatLine *line, _lines) {
+ line->setPos(0, _height);
+ _height += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
+ }
+ setSceneRect(QRectF(0, 0, w, _height));
+ secondColHandle->setXLimits(firstColHandlePos, width() - minContentsWidth);
+ emit heightChanged(_height);
}
-void ChatScene::appendMsg(AbstractUiMsg * msg) {
- /*
- ChatLine *line = dynamic_cast<ChatLine*>(msg);
- Q_ASSERT(line);
- _lines.append(line);
- addItem(line);
- line->setPos(0, _lines.count() * 30);
- line->setColumnWidths(80, 80, 400);
- */
+void ChatScene::rectChanged(const QRectF &rect) {
+ firstColHandle->sceneRectChanged(rect);
+ secondColHandle->sceneRectChanged(rect);
+}
+
+void ChatScene::handlePositionChanged(qreal xpos) {
+ bool first = (sender() == firstColHandle);
+ qreal oldx;
+ if(first) {
+ oldx = firstColHandlePos;
+ firstColHandlePos = xpos;
+ } else {
+ oldx = secondColHandlePos;
+ secondColHandlePos = xpos;
+ }
+ QtUiSettings s;
+ s.setValue(QString("ChatView/%1/FirstColumnHandlePos").arg(_idString), firstColHandlePos);
+ s.setValue(QString("ChatView/%1/SecondColumnHandlePos").arg(_idString), secondColHandlePos);
+ s.setValue(QString("ChatView/DefaultFirstColumnHandlePos"), firstColHandlePos);
+ s.setValue(QString("ChatView/DefaultSecondColumnHandlePos"), secondColHandlePos);
+
+ setWidth(width()); // readjust all chatlines
+ // we get ugly redraw errors if we don't update this explicitly... :(
+ // width() should be the same for both handles, so just use firstColHandle regardless
+ update(qMin(oldx, xpos) - firstColHandle->width()/2, 0, qMax(oldx, xpos) + firstColHandle->width()/2, height());
}
-void ChatScene::prependMsg(AbstractUiMsg * msg) {
- /*
- ChatLine *line = dynamic_cast<ChatLine*>(msg);
- Q_ASSERT(line); qDebug() << "prepending";
- _lines.prepend(line);
- addItem(line);
- line->setPos(0, _lines.count() * 30);
- */
+void ChatScene::setSelectingItem(ChatItem *item) {
+ if(_selectingItem) _selectingItem->clearSelection();
+ _selectingItem = item;
}
-void ChatScene::mousePressEvent ( QGraphicsSceneMouseEvent * mouseEvent ) {
- /*
- qDebug() << "recv" << mouseEvent->scenePos();
- ChatLine *line = static_cast<ChatLine*>(itemAt(mouseEvent->scenePos()));
- ChatItem *item = static_cast<ChatItem*>(itemAt(mouseEvent->scenePos()));
- qDebug() << (void*)line << (void*)item;
- if(line) {
- line->myMousePressEvent(mouseEvent);
- } else QGraphicsScene::mousePressEvent(mouseEvent);
- */
+void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
+ _selectionStart = _selectionEnd = _lastSelectionRow = _firstSelectionRow = item->row();
+ _selectionStartCol = _selectionMinCol = item->column();
+ _isSelecting = true;
+ _lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
+ updateSelection(item->mapToScene(itemPos));
+}
+
+void ChatScene::updateSelection(const QPointF &pos) {
+ // This is somewhat hacky... we look at the contents item that is at the cursor's y position (ignoring x), since
+ // it has the full height. From this item, we can then determine the row index and hence the ChatLine.
+ ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(secondColHandlePos + secondColHandle->width()/2, pos.y())));
+ if(!contentItem) return;
+
+ int curRow = contentItem->row();
+ int curColumn;
+ if(pos.x() > secondColHandlePos + secondColHandle->width()/2) curColumn = ChatLineModel::ContentsColumn;
+ else if(pos.x() > firstColHandlePos) curColumn = ChatLineModel::SenderColumn;
+ else curColumn = ChatLineModel::TimestampColumn;
+
+ ChatLineModel::ColumnType minColumn = (ChatLineModel::ColumnType)qMin(curColumn, _selectionStartCol);
+ if(minColumn != _selectionMinCol) {
+ _selectionMinCol = minColumn;
+ for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
+ _lines[l]->setSelected(true, minColumn);
+ }
+ }
+ 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);
+ }
+ if(newstart > _selectionStart) {
+ for(int l = _selectionStart; l < newstart; l++)
+ _lines[l]->setSelected(false);
+ }
+ if(newend > _selectionEnd) {
+ for(int l = _selectionEnd+1; l <= newend; l++)
+ _lines[l]->setSelected(true, minColumn);
+ }
+ if(newend < _selectionEnd) {
+ for(int l = newend+1; l <= _selectionEnd; l++)
+ _lines[l]->setSelected(false);
+ }
+
+ _selectionStart = newstart;
+ _selectionEnd = newend;
+ _lastSelectionRow = curRow;
+
+ 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) {
+ updateSelection(event->scenePos());
+ event->accept();
+ } else {
+ QGraphicsScene::mouseMoveEvent(event);
+ }
+}
+
+void ChatScene::mousePressEvent(QGraphicsSceneMouseEvent *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 && !event->buttons() & Qt::LeftButton) {
+ putToClipboard(selectionToString());
+ _isSelecting = false;
+ event->accept();
+ } else {
+ QGraphicsScene::mouseReleaseEvent(event);
+ }
+}
+
+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!
+ 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::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());
+ }
+}
+
+int ChatScene::sectionByScenePos(int x) {
+ if(x < firstColHandlePos)
+ return ChatLineModel::TimestampColumn;
+ if(x < secondColHandlePos)
+ return ChatLineModel::SenderColumn;
+
+ return ChatLineModel::ContentsColumn;
}
projects / quassel.git / blobdiff