+class ChatScene : public QGraphicsScene
+{
+ Q_OBJECT
+
+public:
+ enum CutoffMode
+ {
+ CutoffLeft,
+ CutoffRight
+ };
+
+ enum ItemType
+ {
+ ChatLineType = QGraphicsItem::UserType + 1,
+ ChatItemType,
+ TimestampChatItemType,
+ SenderChatItemType,
+ ContentsChatItemType,
+ SearchHighlightType,
+ WebPreviewType,
+ ColumnHandleType,
+ MarkerLineType
+ };
+
+ enum ClickMode
+ {
+ NoClick,
+ DragStartClick,
+ SingleClick,
+ DoubleClick,
+ TripleClick
+ };
+
+ ChatScene(QAbstractItemModel* model, QString idString, qreal width, ChatView* parent);
+
+ inline QAbstractItemModel* model() const { return _model; }
+ inline MessageFilter* filter() const { return qobject_cast<MessageFilter*>(_model); }
+ inline QString idString() const { return _idString; }
+
+ int rowByScenePos(qreal y) const;
+ inline int rowByScenePos(const QPointF& pos) const { return rowByScenePos(pos.y()); }
+ ChatLineModel::ColumnType columnByScenePos(qreal x) const;
+ inline ChatLineModel::ColumnType columnByScenePos(const QPointF& pos) const { return columnByScenePos(pos.x()); }
+
+ ChatView* chatView() const;
+ ChatItem* chatItemAt(const QPointF& pos) const;
+ inline ChatLine* chatLine(int row) const { return (row < _lines.count()) ? _lines.value(row) : 0; }
+ inline ChatLine* chatLine(const QModelIndex& index) const { return _lines.value(index.row()); }
+
+ //! Find the ChatLine belonging to a MsgId
+ /** Searches for the ChatLine belonging to a MsgId. If there are more than one ChatLine with the same msgId,
+ * the first one is returned.
+ * Note that this method performs a binary search, hence it has as complexity of O(log n).
+ * If matchExact is false, and we don't have an exact match for the given msgId, we return the visible line right
+ * above the requested one.
+ * \param msgId The message ID to look for
+ * \param matchExact Whether we find only exact matches
+ * \param ignoreDayChange Whether we ignore day change messages
+ * \return The ChatLine corresponding to the given MsgId
+ */
+ ChatLine* chatLine(MsgId msgId, bool matchExact = true, bool ignoreDayChange = true) const;
+
+ inline ChatLine* lastLine() const { return _lines.count() ? _lines.last() : 0; }
+
+ inline MarkerLineItem* markerLine() const { return _markerLine; }
+
+ inline bool isSingleBufferScene() const { return _singleBufferId.isValid(); }
+ inline BufferId singleBufferId() const { return _singleBufferId; }
+ bool containsBuffer(const BufferId& id) const;
+
+ ColumnHandleItem* firstColumnHandle() const;
+ ColumnHandleItem* secondColumnHandle() const;
+
+ inline CutoffMode senderCutoffMode() const { return _cutoffMode; }
+ inline void setSenderCutoffMode(CutoffMode mode) { _cutoffMode = mode; }
+
+ /**
+ * Gets whether to re-add hidden brackets around sender for all message types
+ *
+ * Used within the Chat Monitor as the normal message prefixes are overridden.
+ *
+ * @return Whether to re-add hidden brackets around sender for all message types
+ */
+ inline bool alwaysBracketSender() const { return _alwaysBracketSender; }
+ /**
+ * Sets whether to re-add hidden brackets around sender for all message types
+ *
+ * @see ChatScene::alwaysBracketSender()
+ *
+ * @param brackets Sets whether to re-add hidden brackets around sender for all message types
+ */
+ inline void setAlwaysBracketSender(bool alwaysBracket) { _alwaysBracketSender = alwaysBracket; }
+
+ QString selection() const;
+ bool hasSelection() const;
+ bool hasGlobalSelection() const;
+ bool isPosOverSelection(const QPointF&) const;
+ bool isGloballySelecting() const;
+ void initiateDrag(QWidget* source);
+
+ bool isScrollingAllowed() const;
+
+public slots:
+ void updateForViewport(qreal width, qreal height);
+ void setWidth(qreal width);
+ void layout(int start, int end, qreal width);
+
+ void resetColumnWidths();
+
+ void setMarkerLineVisible(bool visible = true);
+ void setMarkerLine(MsgId msgId = MsgId());
+ void jumpToMarkerLine(bool requestBacklog);
+
+ // these are used by the chatitems to notify the scene and manage selections
+ void setSelectingItem(ChatItem* item);
+ ChatItem* selectingItem() const { return _selectingItem; }
+ void startGlobalSelection(ChatItem* item, const QPointF& itemPos);
+ void clearGlobalSelection();
+ void clearSelection();
+ void selectionToClipboard(QClipboard::Mode = QClipboard::Clipboard);
+ void stringToClipboard(const QString& str, QClipboard::Mode = QClipboard::Clipboard);
+
+ void webSearchOnSelection();
+
+ void requestBacklog();
+
+#if defined HAVE_WEBKIT || defined HAVE_WEBENGINE
+ void loadWebPreview(ChatItem* parentItem, const QUrl& url, const QRectF& urlRect);
+ void clearWebPreview(ChatItem* parentItem = nullptr);
+#endif
+
+signals:
+ void lastLineChanged(QGraphicsItem* item, qreal offset);
+ void layoutChanged(); // indicates changes to the scenerect due to resizing of the contentsitems
+ void mouseMoveWhileSelecting(const QPointF& scenePos);
+
+protected:
+ void contextMenuEvent(QGraphicsSceneContextMenuEvent* contextMenuEvent) override;
+ void mouseMoveEvent(QGraphicsSceneMouseEvent* mouseEvent) override;
+ void mousePressEvent(QGraphicsSceneMouseEvent* mouseEvent) override;
+ void mouseReleaseEvent(QGraphicsSceneMouseEvent* mouseEvent) override;
+ void mouseDoubleClickEvent(QGraphicsSceneMouseEvent* mouseEvent) override;
+ virtual void handleClick(Qt::MouseButton button, const QPointF& scenePos);
+
+protected slots:
+ void rowsInserted(const QModelIndex&, int, int);
+ void rowsAboutToBeRemoved(const QModelIndex&, int, int);
+ void dataChanged(const QModelIndex&, const QModelIndex&);
+
+private slots:
+ void firstHandlePositionChanged(qreal xpos);
+ void secondHandlePositionChanged(qreal xpos);
+#if defined HAVE_WEBKIT || defined HAVE_WEBENGINE
+ void webPreviewNextStep();
+#endif
+ void showWebPreviewChanged();
+
+ /**
+ * Updates the local setting cache of whether or not to show sender brackets
+ */
+ void showSenderBracketsChanged();
+
+ /**
+ * Updates the local setting cache of whether or not to use the custom timestamp format
+ */
+ void useCustomTimestampFormatChanged();
+
+ /**
+ * Updates the local setting cache of the timestamp format string
+ */
+ void timestampFormatStringChanged();
+
+ /**
+ * Updates the status of whether or not the timestamp format string contains brackets
+ *
+ * When the timestamp contains brackets -and- showSenderBrackets is disabled, we need to
+ * automatically add brackets. This function checks if the timestamp has brackets and stores
+ * the result, rather than checking each time text is copied.
+ */
+ void updateTimestampHasBrackets();
+
+ void rowsRemoved();
+
+ void clickTimeout();
+
+private:
+ void setHandleXLimits();
+ void updateSelection(const QPointF& pos);
+
+ ChatView* _chatView;
+ QString _idString;
+ QAbstractItemModel* _model;
+ QList<ChatLine*> _lines;
+ BufferId _singleBufferId;
+
+ // calls to QChatScene::sceneRect() are very expensive. As we manage the scenerect ourselves
+ // we store the size in a member variable.
+ QRectF _sceneRect;
+ int _firstLineRow; // the first row to display (aka: not a daychange msg)
+ void updateSceneRect(qreal width);
+ inline void updateSceneRect() { updateSceneRect(_sceneRect.width()); }
+ void updateSceneRect(const QRectF& rect);
+ qreal _viewportHeight;
+
+ MarkerLineItem* _markerLine;
+ bool _markerLineVisible, _markerLineValid, _markerLineJumpPending;