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_
31 //!\brief Scroll area showing part of the chat messages for a given buffer.
32 /** The contents of the scroll area, i.e. a widget of type ChatWidgetContents,
33 * needs to be provided by calling init(). We don't create this widget ourselves, because
34 * while a ChatWidget will be destroyed and recreated quite often (for example when switching
35 * buffers), there ususally is no need to re-render its content every time (which can be time-consuming).
36 * Before a ChatWidget is destroyed, it gives up its ownership of its contents, referring responsibility
37 * back to where it came from.
39 * Because we use this as a custom widget in Qt Designer, we cannot use a constructor that takes custom
40 * parameters. Instead, it is mandatory to call init() before using this widget.
42 class ChatWidget : public QAbstractScrollArea {
46 ChatWidget(QWidget *parent = 0);
48 void init(BufferId id);
50 virtual QSize sizeHint() const;
55 void prependMsg(AbstractUiMsg *);
56 void appendMsg(AbstractUiMsg *);
58 void prependChatLine(ChatLine *);
59 void appendChatLine(ChatLine *);
60 void prependChatLines(QList<ChatLine *>);
61 void appendChatLines(QList<ChatLine *>);
62 void setContents(QList<ChatLine *>);
65 virtual void resizeEvent(QResizeEvent *event);
66 virtual void paintEvent(QPaintEvent * event);
67 virtual void mousePressEvent(QMouseEvent *event);
68 virtual void mouseReleaseEvent(QMouseEvent *event);
69 virtual void mouseMoveEvent(QMouseEvent *event);
70 virtual void mouseDoubleClickEvent(QMouseEvent *event);
74 void scrollBarAction(int);
75 void scrollBarValChanged(int);
76 void ensureVisible(int line);
77 void handleScrollTimer();
81 enum SelectionMode { NoSelection, TextSelected, LinesSelected };
82 enum MouseMode { Normal, Pressed, DragTsSep, DragTextSep, MarkText, MarkLines };
83 enum MousePos { None, OverTsSep, OverTextSep, OverUrl };
87 MouseMode dragStartMode;
92 SelectionMode selectionMode;
93 int selectionStart, selectionEnd, selectionLine;
95 int bottomLine, bottomLineOffset;
97 QList<ChatLine *> lines;
100 QPoint pointerPosition;
107 int tsGrabPos; ///< X-Position for changing the timestamp width
109 void computePositions();
115 void adjustScrollBar();
117 int yToLineIdx(qreal y);
118 void clearSelection();
119 QString selectionToString();
120 void handleMouseMoveEvent(const QPoint &pos);