/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2015 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. *
***************************************************************************/
#ifndef CHATVIEW_H_
#define CHATVIEW_H_
#include <QGraphicsView>
+#include <QTimer>
#include "abstractbuffercontainer.h"
+class AbstractBufferContainer;
class AbstractUiMsg;
class Buffer;
class ChatLine;
class ChatScene;
class MessageFilter;
+class QMenu;
-class ChatView : public QGraphicsView, public AbstractChatView {
- Q_OBJECT
+class ChatView : public QGraphicsView, public AbstractChatView
+{
+ Q_OBJECT
public:
- ChatView(MessageFilter *, QWidget *parent = 0);
- ChatView(BufferId bufferId, QWidget *parent = 0);
+ ChatView(MessageFilter *, QWidget *parent = 0);
+ ChatView(BufferId bufferId, QWidget *parent = 0);
- virtual MsgId lastMsgId() const;
- inline ChatScene *scene() const { return _scene; }
+ 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);
+
+ //! 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() {}
- void setBufferForBacklogFetching(BufferId buffer);
+ inline virtual void clear() {}
+ void zoomIn();
+ void zoomOut();
+ void zoomOriginal();
+
+ void setMarkerLineVisible(bool visible = true);
+ void setMarkerLine(MsgId msgId);
+ void jumpToMarkerLine(bool requestBacklog);
protected:
- virtual void resizeEvent(QResizeEvent *event);
+ virtual bool event(QEvent *event);
+ virtual void resizeEvent(QResizeEvent *event);
+ virtual void scrollContentsBy(int dx, int dy);
protected slots:
- virtual void sceneHeightChanged(qreal height);
- virtual void verticalScrollbarChanged(int);
- virtual void sliderPressed();
- virtual void sliderReleased();
-
+ 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);
+ void init(MessageFilter *filter);
- ChatScene *_scene;
+ AbstractBufferContainer *_bufferContainer;
+ ChatScene *_scene;
+ int _lastScrollbarPos;
+ qreal _currentScaleFactor;
+ QTimer _scrollTimer;
+ int _scrollOffset;
+ bool _invalidateFilter;
+ QSet<ChatLine *> _linesWithCache;
};