* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#include <QApplication>
+#include <QClipboard>
#include <QGraphicsSceneMouseEvent>
#include <QPersistentModelIndex>
{
_width = 0;
_selectingItem = 0;
+ _isSelecting = false;
+ _selectionStart = -1;
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));
_lines.append(line);
ChatScene::~ChatScene() {
-
}
void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
}
}
+void ChatScene::modelReset() {
+ foreach(ChatLine *line, _lines) {
+ removeItem(line);
+ delete line;
+ }
+ _lines.clear();
+ setSceneRect(QRectF(0, 0, _width, 0));
+}
+
void ChatScene::setWidth(qreal w) {
_width = w;
_height = 0;
update(qMin(oldx, xpos) - firstColHandle->width()/2, 0, qMax(oldx, xpos) + firstColHandle->width()/2, height());
}
-void ChatScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+void ChatScene::setSelectingItem(ChatItem *item) {
+ if(_selectingItem) _selectingItem->clearSelection();
+ _selectingItem = item;
+}
- QGraphicsScene::mouseMoveEvent(event);
+void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
+ _selectionStart = _selectionEnd = item->index().row();
+ _selectionStartCol = _selectionMinCol = item->index().column();
+ _isSelecting = true;
+ _lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
+ updateSelection(item->mapToScene(itemPos));
}
-void ChatScene::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+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->index().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);
+ }
+ }
+
+ if(curRow > _selectionEnd && curRow > _selectionStart) { // select further towards bottom
+ for(int l = _selectionEnd + 1; l <= curRow; 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--) {
+ _lines[l]->setSelected(false);
+ }
+ } else if(curRow < _selectionEnd && curRow < _selectionStart) {
+ for(int l = _selectionEnd - 1; l >= curRow; l--) {
+ _lines[l]->setSelected(true, minColumn);
+ }
+ }
+ _selectionEnd = curRow;
- QGraphicsScene::mousePressEvent(event);
+ if(curRow == _selectionStart && minColumn == ChatLineModel::ContentsColumn) {
+ _lines[curRow]->setSelected(false);
+ _isSelecting = false;
+ _selectingItem->continueSelecting(_selectingItem->mapFromScene(pos));
+ }
}
-void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+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);
+ }
+}
- QGraphicsScene::mouseReleaseEvent(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 {
+ QGraphicsScene::mouseReleaseEvent(event);
+ }
}
-void ChatScene::setSelectingItem(ChatItem *item) {
- if(_selectingItem) _selectingItem->clearSelection();
- _selectingItem = item;
+//!\brief Convert current selection to human-readable string.
+QString ChatScene::selectionToString() const {
+ //TODO Make selection format configurable!
+ if(!_isSelecting) return "";
+ QString result;
+ for(int l = _selectionStart; l <= _selectionEnd; 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;
}