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 <QGraphicsItem>
28 #include "chatlinemodel.h"
29 #include "chatscene.h"
34 class ChatItem : public QGraphicsItem {
37 ChatItem(const QPersistentModelIndex &index, QGraphicsItem *parent);
40 inline QPersistentModelIndex index() const { return _index; }
41 inline const MessageModel *model() const { return _index.isValid() ? qobject_cast<const MessageModel *>(_index.model()) : 0; }
42 inline int row() const { return _index.isValid() ? _index.row() : 0; }
43 inline ChatScene *chatScene() const { return qobject_cast<ChatScene *>(scene()); }
45 inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
46 inline virtual QRectF boundingRect() const { return _boundingRect; }
47 inline qreal width() const { return _boundingRect.width(); }
48 inline qreal height() const { return _boundingRect.height(); }
50 inline bool haveLayout() const { return _layout != 0; }
53 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
55 virtual QVariant data(int role) const;
58 qreal setWidth(qreal width);
60 // selection stuff, to be called by the scene
61 void clearSelection();
62 void setFullSelection();
63 void continueSelecting();
66 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
67 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
68 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
71 qint16 posToCursor(const QPointF &pos);
72 qreal computeHeight();
73 QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft);
75 // internal selection stuff
76 void setSelection(int start, int length);
79 QFontMetricsF *_fontMetrics;
81 QPersistentModelIndex _index;
83 QTextLayout * _layout;
84 QList<quint16> _wrapPositions;
86 enum SelectionMode { NoSelection, PartialSelection, FullSelection };
87 SelectionMode _selectionMode;
88 qint16 _selectionStart, _selectionEnd;
90 class WrapColumnFinder;
93 class ChatItem::WrapColumnFinder {
95 WrapColumnFinder(ChatItem *parent);
98 qint16 nextWrapColumn();
104 ChatLineModel::WrapList wrapList;