1 /***************************************************************************
2 * Copyright (C) 2005-08 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
24 #include <QAbstractItemModel>
25 #include <QGraphicsScene>
35 class ColumnHandleItem;
37 class QGraphicsSceneMouseEvent;
39 class ChatScene : public QGraphicsScene {
43 ChatScene(QAbstractItemModel *model, const QString &idString, QObject *parent);
46 inline QAbstractItemModel *model() const { return _model; }
47 inline QString idString() const { return _idString; }
49 inline bool isFetchingBacklog() const;
50 inline bool isBacklogFetchingEnabled() const;
51 inline BufferId bufferForBacklogFetching() const;
52 int sectionByScenePos(int x);
53 inline int sectionByScenePos(const QPoint &pos) { return sectionByScenePos(pos.x()); }
58 // these are used by the chatitems to notify the scene and manage selections
59 void setSelectingItem(ChatItem *item);
60 ChatItem *selectingItem() const { return _selectingItem; }
61 void startGlobalSelection(ChatItem *item, const QPointF &itemPos);
63 void setIsFetchingBacklog(bool);
64 inline void setBufferForBacklogFetching(BufferId buffer);
67 void heightChanged(qreal height);
70 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
71 virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
72 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
75 void rowsInserted(const QModelIndex &, int, int);
79 void rectChanged(const QRectF &);
80 void handlePositionChanged(qreal xpos);
83 void updateSelection(const QPointF &pos);
84 QString selectionToString() const;
85 void requestBacklogIfNeeded();
88 qreal _width, _height;
89 QAbstractItemModel *_model;
90 QList<ChatLine *> _lines;
92 ColumnHandleItem *firstColHandle, *secondColHandle;
93 qreal firstColHandlePos, secondColHandlePos;
95 ChatItem *_selectingItem, *_lastItem;
96 QSet<ChatLine *> _selectedItems;
97 int _selectionStartCol, _selectionMinCol;
102 bool _fetchingBacklog;
103 BufferId _backlogFetchingBuffer;
104 MsgId _lastBacklogOffset;
105 int _lastBacklogSize;
108 bool ChatScene::isFetchingBacklog() const {
109 return _fetchingBacklog;
112 bool ChatScene::isBacklogFetchingEnabled() const {
113 return _backlogFetchingBuffer.isValid();
116 BufferId ChatScene::bufferForBacklogFetching() const {
117 return _backlogFetchingBuffer;
120 void ChatScene::setBufferForBacklogFetching(BufferId buf) {
121 _backlogFetchingBuffer = buf;