1 | /*************************************************************************** |
2 | * Copyright (C) 2005-2014 by the Quassel Project * |
3 | * devel@quassel-irc.org * |
4 | * * |
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. * |
9 | * * |
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. * |
14 | * * |
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 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
19 | ***************************************************************************/ |
20 | |
21 | #ifndef CHATVIEW_H_ |
22 | #define CHATVIEW_H_ |
23 | |
24 | #include <QGraphicsView> |
25 | #include <QTimer> |
26 | |
27 | #include "abstractbuffercontainer.h" |
28 | |
29 | class AbstractBufferContainer; |
30 | class AbstractUiMsg; |
31 | class Buffer; |
32 | class ChatLine; |
33 | class ChatScene; |
34 | class MessageFilter; |
35 | class ; |
36 | |
37 | class ChatView : public QGraphicsView, public AbstractChatView |
38 | { |
39 | Q_OBJECT |
40 | |
41 | public: |
42 | ChatView(MessageFilter *, QWidget *parent = 0); |
43 | ChatView(BufferId bufferId, QWidget *parent = 0); |
44 | |
45 | virtual MsgId lastMsgId() const; |
46 | virtual MsgId lastVisibleMsgId() const; |
47 | inline AbstractBufferContainer *bufferContainer() const { return _bufferContainer; } |
48 | inline void setBufferContainer(AbstractBufferContainer *c) { _bufferContainer = c; } |
49 | |
50 | inline ChatScene *scene() const { return _scene; } |
51 | |
52 | //! Return a set of ChatLines currently visible in the view |
53 | /** \param mode How partially visible ChatLines are handled |
54 | * \return A set of visible ChatLines |
55 | */ |
56 | QSet<ChatLine *> visibleChatLines(Qt::ItemSelectionMode mode = Qt::ContainsItemBoundingRect) const; |
57 | |
58 | //! Return a sorted list of ChatLines currently visible in the view |
59 | /** \param mode How partially visible ChatLines are handled |
60 | * \return A list of visible ChatLines sorted by row |
61 | * \note If the order of ChatLines does not matter, use visibleChatLines() instead |
62 | */ |
63 | QList<ChatLine *> visibleChatLinesSorted(Qt::ItemSelectionMode mode = Qt::ContainsItemBoundingRect) const; |
64 | |
65 | //! Return the last fully visible ChatLine in this view |
66 | /** Using this method more efficient than calling visibleChatLinesSorted() and taking its last element. |
67 | * \return The last fully visible ChatLine in the view |
68 | */ |
69 | ChatLine *lastVisibleChatLine(bool ignoreDayChange = false) const; |
70 | |
71 | virtual void (QMenu *, const QPointF &pos); |
72 | |
73 | //! Tell the view that this ChatLine has cached data |
74 | /** ChatLines cache some layout data that should be cleared as soon as it's no |
75 | * longer visible. A ChatLine caching data registers itself with this method to |
76 | * tell the view about it. The view will call ChatLine::clearCache() when |
77 | * appropriate. |
78 | * \param line The ChatLine having cached data |
79 | */ |
80 | void setHasCache(ChatLine *line, bool hasCache = true); |
81 | |
82 | public slots: |
83 | inline virtual void clear() {} |
84 | void zoomIn(); |
85 | void zoomOut(); |
86 | void zoomOriginal(); |
87 | |
88 | void setMarkerLineVisible(bool visible = true); |
89 | void setMarkerLine(MsgId msgId); |
90 | void jumpToMarkerLine(bool requestBacklog); |
91 | |
92 | protected: |
93 | virtual bool event(QEvent *event); |
94 | virtual void resizeEvent(QResizeEvent *event); |
95 | virtual void scrollContentsBy(int dx, int dy); |
96 | |
97 | protected slots: |
98 | virtual void verticalScrollbarChanged(int); |
99 | |
100 | private slots: |
101 | void lastLineChanged(QGraphicsItem *chatLine, qreal offset); |
102 | void adjustSceneRect(); |
103 | void checkChatLineCaches(); |
104 | void mouseMoveWhileSelecting(const QPointF &scenePos); |
105 | void scrollTimerTimeout(); |
106 | void invalidateFilter(); |
107 | void markerLineSet(BufferId buffer, MsgId msg); |
108 | |
109 | private: |
110 | void init(MessageFilter *filter); |
111 | |
112 | AbstractBufferContainer *_bufferContainer; |
113 | ChatScene *_scene; |
114 | int _lastScrollbarPos; |
115 | qreal _currentScaleFactor; |
116 | QTimer _scrollTimer; |
117 | int _scrollOffset; |
118 | bool _invalidateFilter; |
119 | QSet<ChatLine *> _linesWithCache; |
120 | }; |
121 | |
122 | |
123 | #endif |
124 | |