X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatscene.cpp;h=b7355fd163285ed9488d89509e0c521b12210051;hp=0671365254a13994d9e665288b8a1ada427543e6;hb=15c352c7ae1ea3d0884d8dc641b7d642a51179fd;hpb=8efabae6c310d17265eaeb03df43ffe8b555a52e

diff --git a/src/qtui/chatscene.cpp b/src/qtui/chatscene.cpp
index 06713652..b7355fd1 100644
--- a/src/qtui/chatscene.cpp
+++ b/src/qtui/chatscene.cpp
@@ -18,14 +18,19 @@
  *   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"
 
@@ -33,18 +38,30 @@ const qreal minContentsWidth = 200;
 
 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;
+  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(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(model->index(i, 0));
+    ChatLine *line = new ChatLine(i, model);
     _lines.append(line);
     addItem(line);
   }
@@ -58,23 +75,23 @@ ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, QObject
   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);
+  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);
+  setHandleXLimits();
 
   emit heightChanged(height());
 }
 
 ChatScene::~ChatScene() {
-
-
 }
 
 void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
@@ -84,9 +101,11 @@ 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(model()->index(i, 0));
+    ChatLine *line = new ChatLine(i, model());
     _lines.insert(i, line);
     addItem(line);
     if(_width > 0) {
@@ -94,10 +113,69 @@ void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
       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.value(i)->moveBy(0, h);
+      _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);
@@ -112,7 +190,7 @@ void ChatScene::setWidth(qreal w) {
     _height += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
   }
   setSceneRect(QRectF(0, 0, w, _height));
-  secondColHandle->setXLimits(firstColHandlePos, width() - minContentsWidth);
+  setHandleXLimits();
   emit heightChanged(_height);
 }
 
@@ -140,7 +218,14 @@ void ChatScene::handlePositionChanged(qreal xpos) {
   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());
+  update(qMin(oldx, xpos), 0, qMax(oldx, xpos) + firstColHandle->width(), height());
+}
+
+void ChatScene::setHandleXLimits() {
+  qreal firstsepwidth = QtUi::style()->firstColumnSeparator();
+  qreal secondsepwidth = QtUi::style()->secondColumnSeparator();
+  firstColHandle->setXLimits(-firstsepwidth/2, secondColHandlePos - firstsepwidth/2);
+  secondColHandle->setXLimits(firstColHandlePos + firstsepwidth - secondsepwidth/2, width() - minContentsWidth - secondsepwidth/2);
 }
 
 void ChatScene::setSelectingItem(ChatItem *item) {
@@ -149,8 +234,8 @@ void ChatScene::setSelectingItem(ChatItem *item) {
 }
 
 void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
-  _selectionStart = _selectionEnd = item->index().row();
-  _selectionStartCol = _selectionMinCol = item->index().column();
+  _selectionStart = _selectionEnd = _lastSelectionRow = _firstSelectionRow = item->row();
+  _selectionStartCol = _selectionMinCol = item->column();
   _isSelecting = true;
   _lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
   updateSelection(item->mapToScene(itemPos));
@@ -159,10 +244,10 @@ void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &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())));
+  ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(secondColHandlePos + secondColHandle->width(), 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;
@@ -175,27 +260,34 @@ void ChatScene::updateSelection(const QPointF &pos) {
       _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) {
+    if(!_selectingItem) {
+      qWarning() << "WARNING: ChatScene::updateSelection() has a null _selectingItem, this should never happen! Please report.";
+      return;
+    }
     _lines[curRow]->setSelected(false);
     _isSelecting = false;
     _selectingItem->continueSelecting(_selectingItem->mapFromScene(pos));
@@ -203,7 +295,7 @@ void ChatScene::updateSelection(const QPointF &pos) {
 }
 
 void ChatScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
-  if(_isSelecting && event->buttons() & Qt::LeftButton) {
+  if(_isSelecting && event->buttons() == Qt::LeftButton) {
     updateSelection(event->scenePos());
     event->accept();
   } else {
@@ -212,19 +304,20 @@ void ChatScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
 }
 
 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);
     }
     _selectionStart = -1;
-    event->accept();
+    QGraphicsScene::mousePressEvent(event);  // so we can start a new local selection
   } else {
     QGraphicsScene::mousePressEvent(event);
   }
 }
 
 void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
-  if(_isSelecting) {
+  if(_isSelecting && !event->buttons() & Qt::LeftButton) {
+    putToClipboard(selectionToString());
     _isSelecting = false;
     event->accept();
   } else {
@@ -232,3 +325,54 @@ void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *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 + firstColHandle->width()/2)
+    return ChatLineModel::TimestampColumn;
+  if(x < secondColHandlePos + secondColHandle->width()/2)
+    return ChatLineModel::SenderColumn;
+
+  return ChatLineModel::ContentsColumn;
+}