Sanitize topic message
[quassel.git] / src / qtui / chatline.cpp
index 1351ee5..ed931bd 100644 (file)
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   Copyright (C) 2005-2013 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  ***************************************************************************/
 
 #include <QDateTime>
+#include <QGraphicsSceneMouseEvent>
 #include <QString>
 #include <QtGui>
 
@@ -27,6 +28,7 @@
 #include "client.h"
 #include "chatitem.h"
 #include "chatline.h"
+#include "chatview.h"
 #include "columnhandleitem.h"
 #include "messagemodel.h"
 #include "networkmodel.h"
 #include "qtuistyle.h"
 
 ChatLine::ChatLine(int row, QAbstractItemModel *model,
-                  const qreal &width,
-                  const qreal &timestampWidth, const qreal &senderWidth, const qreal &contentsWidth,
-                  const QPointF &senderPos, const QPointF &contentsPos,
-                  QGraphicsItem *parent)
-  : QGraphicsItem(parent),
+    const qreal &width,
+    const qreal &timestampWidth, const qreal &senderWidth, const qreal &contentsWidth,
+    const QPointF &senderPos, const QPointF &contentsPos,
+    QGraphicsItem *parent)
+    : QGraphicsItem(parent),
     _row(row), // needs to be set before the items
     _model(model),
-    _contentsItem(contentsWidth, contentsPos, this),
-    _senderItem(senderWidth, _contentsItem.height(), senderPos, this),
-    _timestampItem(timestampWidth, _contentsItem.height(), this),
+    _contentsItem(contentsPos, contentsWidth, this),
+    _senderItem(QRectF(senderPos, QSizeF(senderWidth, _contentsItem.height())), this),
+    _timestampItem(QRectF(0, 0, timestampWidth, _contentsItem.height()), this),
     _width(width),
     _height(_contentsItem.height()),
-    _selection(0)
+    _selection(0),
+    _mouseGrabberItem(0),
+    _hoverItem(0)
 {
-  Q_ASSERT(model);
-  QModelIndex index = model->index(row, ChatLineModel::ContentsColumn);
-  setZValue(0);
-  setHighlighted(model->data(index, MessageModel::FlagsRole).toInt() & Message::Highlight);
+    Q_ASSERT(model);
+    QModelIndex index = model->index(row, ChatLineModel::ContentsColumn);
+    setZValue(0);
+    setAcceptHoverEvents(true);
+    setHighlighted(index.data(MessageModel::FlagsRole).toInt() & Message::Highlight);
 }
 
-ChatItem &ChatLine::item(ChatLineModel::ColumnType column) {
-  switch(column) {
+
+ChatLine::~ChatLine()
+{
+    if (chatView())
+        chatView()->setHasCache(this, false);
+}
+
+
+ChatItem *ChatLine::item(ChatLineModel::ColumnType column)
+{
+    switch (column) {
     case ChatLineModel::TimestampColumn:
-      return _timestampItem;
+        return &_timestampItem;
     case ChatLineModel::SenderColumn:
-      return _senderItem;
+        return &_senderItem;
     case ChatLineModel::ContentsColumn:
-      return _contentsItem;
-  default:
-    return *(ChatItem *)0; // provoke an error
-  }
+        return &_contentsItem;
+    default:
+        return 0;
+    }
+}
+
+
+ChatItem *ChatLine::itemAt(const QPointF &pos)
+{
+    if (_contentsItem.boundingRect().contains(pos))
+        return &_contentsItem;
+    if (_senderItem.boundingRect().contains(pos))
+        return &_senderItem;
+    if (_timestampItem.boundingRect().contains(pos))
+        return &_timestampItem;
+    return 0;
+}
+
+
+void ChatLine::clearCache()
+{
+    _timestampItem.clearCache();
+    _senderItem.clearCache();
+    _contentsItem.clearCache();
+}
+
+
+void ChatLine::setMouseGrabberItem(ChatItem *item)
+{
+    _mouseGrabberItem = item;
 }
 
-// NOTE: senderPos is in ChatLines coordinate system!
-void ChatLine::setFirstColumn(const qreal &timestampWidth, const qreal &senderWidth, const QPointF &senderPos) {
-  _timestampItem.prepareGeometryChange();
-  _timestampItem.setGeometry(timestampWidth, _height);
-  // senderItem doesn't need a geom change as it's Pos is changed (ensured by void ChatScene::firstHandlePositionChanged(qreal xpos))
-  _senderItem.setGeometry(senderWidth, _height);
-  _senderItem.setPos(senderPos);
 
-  _timestampItem.clearLayout();
-  _senderItem.clearLayout();
+bool ChatLine::sceneEvent(QEvent *event)
+{
+    if (event->type() == QEvent::GrabMouse) {
+        // get mouse cursor pos relative to us
+        ChatView *view = chatScene()->chatView();
+        QPointF linePos = mapFromScene(view->mapToScene(view->mapFromGlobal(QCursor::pos())));
+        setMouseGrabberItem(itemAt(linePos));
+    }
+    else if (event->type() == QEvent::UngrabMouse) {
+        setMouseGrabberItem(0);
+    }
+    return QGraphicsItem::sceneEvent(event);
 }
 
-// NOTE: contentsPos is in ChatLines coordinate system!
-void ChatLine::setSecondColumn(const qreal &senderWidth, const qreal &contentsWidth,
-                              const QPointF &contentsPos, qreal &linePos) {
-  // contentsItem doesn't need a geom change as it's Pos is changed (ensured by void ChatScene::firstHandlePositionChanged(qreal xpos))
-  qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
-  linePos -= height;
-  bool needGeometryChange = linePos == pos().y();
 
-  if(needGeometryChange) {
-    _timestampItem.prepareGeometryChange();
-    _senderItem.prepareGeometryChange();
-  }
-  _timestampItem.setHeight(height);
-  _senderItem.setGeometry(senderWidth, height);
+void ChatLine::setFirstColumn(const qreal &timestampWidth, const qreal &senderWidth, const QPointF &senderPos)
+{
+    _timestampItem.setGeometry(timestampWidth, _height);
+    _senderItem.setGeometry(senderWidth, _height);
+    _senderItem.setPos(senderPos);
+}
+
 
-  _contentsItem.setPos(contentsPos);
+void ChatLine::setSecondColumn(const qreal &senderWidth, const qreal &contentsWidth, const QPointF &contentsPos, qreal &linePos)
+{
+    // linepos is the *bottom* position for the line
+    qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
+    linePos -= height;
+    bool needGeometryChange = (height != _height);
 
-  _senderItem.clearLayout();
-  _contentsItem.clearLayout();
+    _timestampItem.setHeight(height);
+    _senderItem.setGeometry(senderWidth, height);
+    _contentsItem.setPos(contentsPos);
 
-  if(needGeometryChange)
-    prepareGeometryChange();
+    if (needGeometryChange)
+        prepareGeometryChange();
 
-  _height = height;
+    _height = height;
 
-  setPos(0, linePos);
+    setPos(0, linePos);
 }
 
-void ChatLine::setGeometryByWidth(const qreal &width, const qreal &contentsWidth, qreal &linePos) {
-  qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
-  linePos -= height;
-  bool needGeometryChange = linePos == pos().y();
 
-  if(needGeometryChange) {
-    _timestampItem.prepareGeometryChange();
-    _senderItem.prepareGeometryChange();
-  }
-  _timestampItem.setHeight(height);
-  _senderItem.setHeight(height);
-  _contentsItem.clearLayout();
+void ChatLine::setGeometryByWidth(const qreal &width, const qreal &contentsWidth, qreal &linePos)
+{
+    // linepos is the *bottom* position for the line
+    qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
+    linePos -= height;
+    bool needGeometryChange = (height != _height || width != _width);
 
-  if(needGeometryChange)
-    prepareGeometryChange();
+    if (height != _height) {
+        _timestampItem.setHeight(height);
+        _senderItem.setHeight(height);
+    }
 
-  _height = height;
-  _width = width;
+    if (needGeometryChange) {
+        prepareGeometryChange();
+        _height = height;
+        _width = width;
+    }
 
-  setPos(0, linePos); // set pos is _very_ cheap if nothing changes.
+    setPos(0, linePos); // set pos is _very_ cheap if nothing changes.
 }
 
-void ChatLine::setSelected(bool selected, ChatLineModel::ColumnType minColumn) {
-  if(selected) {
-    quint8 sel = (_selection & Highlighted) | Selected | minColumn;
-    if(sel != _selection) {
-      _selection = sel;
-      for(int i = 0; i < minColumn; i++)
-       item((ChatLineModel::ColumnType)i).clearSelection();
-      for(int i = minColumn; i <= ChatLineModel::ContentsColumn; i++)
-       item((ChatLineModel::ColumnType)i).setFullSelection();
-      update();
+
+void ChatLine::setSelected(bool selected, ChatLineModel::ColumnType minColumn)
+{
+    if (selected) {
+        quint8 sel = (_selection & Highlighted) | Selected | minColumn;
+        if (sel != _selection) {
+            _selection = sel;
+            for (int i = 0; i < minColumn; i++)
+                item((ChatLineModel::ColumnType)i)->clearSelection();
+            for (int i = minColumn; i <= ChatLineModel::ContentsColumn; i++)
+                item((ChatLineModel::ColumnType)i)->setFullSelection();
+            update();
+        }
     }
-  } else {
-    quint8 sel = _selection & Highlighted;
-    if(sel != _selection) {
-      _selection = sel;
-      for(int i = 0; i <= ChatLineModel::ContentsColumn; i++)
-       item((ChatLineModel::ColumnType)i).clearSelection();
-      update();
+    else {
+        quint8 sel = _selection & Highlighted;
+        if (sel != _selection) {
+            _selection = sel;
+            for (int i = 0; i <= ChatLineModel::ContentsColumn; i++)
+                item((ChatLineModel::ColumnType)i)->clearSelection();
+            update();
+        }
     }
-  }
-}
-
-void ChatLine::setHighlighted(bool highlighted) {
-  if(highlighted) _selection |= Highlighted;
-  else _selection &= ~Highlighted;
-  update();
-}
-
-void ChatLine::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
-  Q_UNUSED(option);
-  Q_UNUSED(widget);
-  if(_selection & Highlighted) {
-    painter->fillRect(boundingRect(), QBrush(QtUi::style()->highlightColor()));
-  }
-  if(_selection & Selected) {
-    qreal left = item((ChatLineModel::ColumnType)(_selection & ItemMask)).x();
-    QRectF selectRect(left, 0, width() - left, height());
-    painter->fillRect(selectRect, QApplication::palette().brush(QPalette::Highlight));
-  }
-
-  // new line marker
-  const QAbstractItemModel *model_ = model();
-  if(model_ && row() > 0  && chatScene()->isSingleBufferScene()) {
-    QModelIndex prevRowIdx = model_->index(row() - 1, 0);
-    MsgId prevMsgId = model_->data(prevRowIdx, MessageModel::MsgIdRole).value<MsgId>();
+}
+
+
+void ChatLine::setHighlighted(bool highlighted)
+{
+    if (highlighted) _selection |= Highlighted;
+    else _selection &= ~Highlighted;
+    update();
+}
+
+
+void ChatLine::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    Q_UNUSED(option);
+    Q_UNUSED(widget);
+
+    const QAbstractItemModel *model_ = model();
     QModelIndex myIdx = model_->index(row(), 0);
-    MsgId myMsgId = model_->data(myIdx, MessageModel::MsgIdRole).value<MsgId>();
-    Message::Flags flags = (Message::Flags)model_->data(myIdx, MessageModel::FlagsRole).toInt();
-    // don't show the marker if we wrote that new line
-    if(!(flags & Message::Self)) {
-      BufferId bufferId = BufferId(chatScene()->idString().toInt());
-      MsgId lastSeenMsgId = Client::networkModel()->lastSeenMsgId(bufferId);
-      if(lastSeenMsgId < myMsgId && lastSeenMsgId >= prevMsgId) {
-       QtUiStyleSettings s("Colors");
-       QLinearGradient gradient(0, 0, 0, contentsItem().fontMetrics()->lineSpacing());
-       gradient.setColorAt(0, s.value("newMsgMarkerFG", QColor(Qt::red)).value<QColor>());
-       gradient.setColorAt(0.1, Qt::transparent);
-       painter->fillRect(boundingRect(), gradient);
-      }
+    Message::Type type = (Message::Type)myIdx.data(MessageModel::TypeRole).toInt();
+    UiStyle::MessageLabel label = (UiStyle::MessageLabel)myIdx.data(ChatLineModel::MsgLabelRole).toInt();
+
+    QTextCharFormat msgFmt = QtUi::style()->format(UiStyle::formatType(type), label);
+    if (msgFmt.hasProperty(QTextFormat::BackgroundBrush)) {
+        painter->fillRect(boundingRect(), msgFmt.background());
+    }
+
+    if (_selection & Selected) {
+        QTextCharFormat selFmt = QtUi::style()->format(UiStyle::formatType(type), label | UiStyle::Selected);
+        if (selFmt.hasProperty(QTextFormat::BackgroundBrush)) {
+            qreal left = item((ChatLineModel::ColumnType)(_selection & ItemMask))->pos().x();
+            QRectF selectRect(left, 0, width() - left, height());
+            painter->fillRect(selectRect, selFmt.background());
+        }
     }
-  }
+
+    // draw chatitems
+    // the items draw themselves at the correct position
+    timestampItem()->paint(painter, option, widget);
+    senderItem()->paint(painter, option, widget);
+    contentsItem()->paint(painter, option, widget);
+}
+
+
+// We need to dispatch all mouse-related events to the appropriate (mouse grabbing) ChatItem
+
+ChatItem *ChatLine::mouseEventTargetItem(const QPointF &pos)
+{
+    if (mouseGrabberItem())
+        return mouseGrabberItem();
+    return itemAt(pos);
+}
+
+
+void ChatLine::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    ChatItem *item = mouseEventTargetItem(event->pos());
+    if (item)
+        item->mouseMoveEvent(event);
+}
+
+
+void ChatLine::mousePressEvent(QGraphicsSceneMouseEvent *event)
+{
+    ChatItem *item = mouseEventTargetItem(event->pos());
+    if (item)
+        item->mousePressEvent(event);
+}
+
+
+void ChatLine::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+    ChatItem *item = mouseEventTargetItem(event->pos());
+    if (item)
+        item->mouseReleaseEvent(event);
+}
+
+
+void ChatLine::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+    ChatItem *item = mouseEventTargetItem(event->pos());
+    if (item && !_hoverItem) {
+        _hoverItem = item;
+        item->hoverEnterEvent(event);
+    }
+}
+
+
+void ChatLine::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+    if (_hoverItem) {
+        _hoverItem->hoverLeaveEvent(event);
+        _hoverItem = 0;
+    }
+}
+
+
+void ChatLine::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
+{
+    ChatItem *item = mouseEventTargetItem(event->pos());
+    if (item)
+        item->hoverMoveEvent(event);
 }