Fix and Qt-4.6-ify ColumnHandleItem

[quassel.git] / src / qtui / chatview.h

diff --git a/src/qtui/chatview.h b/src/qtui/chatview.h
index d72328a..51522d2 100644 (file)
--- a/src/qtui/chatview.h
+++ b/src/qtui/chatview.h
@@ -42,14 +42,41 @@ public:
   ChatView(BufferId bufferId, QWidget *parent = 0);
 
   virtual MsgId lastMsgId() const;
+  virtual MsgId lastVisibleMsgId() const;
   inline AbstractBufferContainer *bufferContainer() const { return _bufferContainer; }
   inline void setBufferContainer(AbstractBufferContainer *c) { _bufferContainer = c; }
 
   inline ChatScene *scene() const { return _scene; }
 
+  //! Return a set of ChatLines currently visible in the view
+  /** \param mode How partially visible ChatLines are handled
+   *  \return A set of visible ChatLines
+   */
+  QSet<ChatLine *> visibleChatLines(Qt::ItemSelectionMode mode = Qt::ContainsItemBoundingRect) const;
+
+  //! Return a sorted list of ChatLines currently visible in the view
+  /** \param mode How partially visible ChatLines are handled
+   *  \return A list of visible ChatLines sorted by row
+   *  \note If the order of ChatLines does not matter, use visibleChatLines() instead
+   */
+  QList<ChatLine *> visibleChatLinesSorted(Qt::ItemSelectionMode mode = Qt::ContainsItemBoundingRect) const;
+
+  //! Return the last fully visible ChatLine in this view
+  /** Using this method more efficient than calling visibleChatLinesSorted() and taking its last element.
+   *  \return The last fully visible ChatLine in the view
+   */
+  ChatLine *lastVisibleChatLine(bool ignoreDayChange = false) const;
+
   virtual void addActionsToMenu(QMenu *, const QPointF &pos);
 
-  virtual bool event(QEvent *event);
+  //! Tell the view that this ChatLine has cached data
+  /** ChatLines cache some layout data that should be cleared as soon as it's no
+   *  longer visible. A ChatLine caching data registers itself with this method to
+   *  tell the view about it. The view will call ChatLine::clearCache() when
+   *  appropriate.
+   *  \param line The ChatLine having cached data
+   */
+  void setHasCache(ChatLine *line, bool hasCache = true);
 
 public slots:
   inline virtual void clear() {}
@@ -57,18 +84,26 @@ public slots:
   void zoomOut();
   void zoomOriginal();
 
+  void setMarkerLineVisible(bool visible = true);
+  void setMarkerLine(MsgId msgId);
+  void jumpToMarkerLine(bool requestBacklog);
+
 protected:
+  virtual bool event(QEvent *event);
   virtual void resizeEvent(QResizeEvent *event);
+  virtual void scrollContentsBy(int dx, int dy);
 
 protected slots:
-  virtual inline void sceneRectChanged(const QRectF &rect) { setSceneRect(rect); }
   virtual void verticalScrollbarChanged(int);
 
 private slots:
   void lastLineChanged(QGraphicsItem *chatLine, qreal offset);
+  void adjustSceneRect();
+  void checkChatLineCaches();
   void mouseMoveWhileSelecting(const QPointF &scenePos);
   void scrollTimerTimeout();
   void invalidateFilter();
+  void markerLineSet(BufferId buffer, MsgId msg);
 
 private:
   void init(MessageFilter *filter);
@@ -80,6 +115,7 @@ private:
   QTimer _scrollTimer;
   int _scrollOffset;
   bool _invalidateFilter;
+  QSet<ChatLine *> _linesWithCache;
 };