1 /***************************************************************************
2 * Copyright (C) 2005/06 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 ***************************************************************************/
21 #ifndef _CHATWIDGET_H_
22 #define _CHATWIDGET_H_
26 #include "abstractbuffercontainer.h"
32 //!\brief Scroll area showing part of the chat messages for a given buffer.
33 /** The contents of the scroll area, i.e. a widget of type ChatWidgetContents,
34 * needs to be provided by calling init(). We don't create this widget ourselves, because
35 * while a ChatWidget will be destroyed and recreated quite often (for example when switching
36 * buffers), there ususally is no need to re-render its content every time (which can be time-consuming).
37 * Before a ChatWidget is destroyed, it gives up its ownership of its contents, referring responsibility
38 * back to where it came from.
40 * Because we use this as a custom widget in Qt Designer, we cannot use a constructor that takes custom
41 * parameters. Instead, it is mandatory to call init() before using this widget.
43 class ChatWidget : public QAbstractScrollArea, public AbstractChatView {
47 ChatWidget(BufferId, QWidget *parent = 0);
49 void init(BufferId id);
51 virtual QSize minimumSizeHint() const;
52 virtual QSize sizeHint() const;
57 void prependMsg(AbstractUiMsg *);
58 void appendMsg(AbstractUiMsg *);
60 void prependChatLine(ChatLineOld *);
61 void appendChatLine(ChatLineOld *);
62 void prependChatLines(QList<ChatLineOld *>);
63 void appendChatLines(QList<ChatLineOld *>);
64 void setContents(const QList<AbstractUiMsg *> &);
67 virtual void resizeEvent(QResizeEvent *event);
68 virtual void paintEvent(QPaintEvent * event);
69 virtual void mousePressEvent(QMouseEvent *event);
70 virtual void mouseReleaseEvent(QMouseEvent *event);
71 virtual void mouseMoveEvent(QMouseEvent *event);
72 virtual void mouseDoubleClickEvent(QMouseEvent *event);
76 void scrollBarAction(int);
77 void scrollBarValChanged(int);
78 void ensureVisible(int line);
79 void handleScrollTimer();
80 void viewportChanged(int newPos);
84 enum SelectionMode { NoSelection, TextSelected, LinesSelected };
85 enum MouseMode { Normal, Pressed, DragTsSep, DragTextSep, MarkText, MarkLines };
86 enum MousePos { None, OverTsSep, OverTextSep, OverUrl };
90 MouseMode dragStartMode;
95 SelectionMode selectionMode;
96 int selectionStart, selectionEnd, selectionLine;
98 int bottomLine, bottomLineOffset;
100 QList<ChatLineOld *> lines;
101 QList<qreal> ycoords;
103 QPoint pointerPosition;
110 int tsGrabPos; ///< X-Position for changing the timestamp width
112 void computePositions();
118 void adjustScrollBar();
120 int yToLineIdx(qreal y);
121 void clearSelection();
122 QString selectionToString();
123 void handleMouseMoveEvent(const QPoint &pos);
125 MsgId lastBacklogOffset;