/***************************************************************************
- * Copyright (C) 2005-07 by The Quassel IRC Development Team *
+ * Copyright (C) 2005-08 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
+ * (at your option) version 3. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-#ifndef _CHATLINE_H_
-#define _CHATLINE_H_
+#ifndef CHATLINE_H_
+#define CHATLINE_H_
-#include <QtGui>
+#include <QGraphicsItem>
-#include "util.h"
-#include "style.h"
-#include "quasselui.h"
+#include "chatlinemodel.h"
+#include "chatitem.h"
+#include "chatscene.h"
-//FIXME: chatline doku
-//!\brief Containing the layout and providing the rendering of a single message.
-/** A ChatLine takes a Message object,
- * formats it (by turning the various message types into a human-readable form and afterwards pumping it through
- * our Style engine), and stores it as a number of QTextLayouts representing the three fields of a chat line
- * (timestamp, sender and text). These layouts already include any rendering information such as font,
- * color, or selected characters. By calling layout(), they can be quickly layouted to fit a given set of field widths.
- * Afterwards, they can quickly be painted whenever necessary.
- *
- * By separating the complex and slow task of interpreting and formatting Message objects (which happens exactly once
- * per message) from the actual layouting and painting, we gain a lot of speed compared to the standard Qt rendering
- * functions.
- */
-class ChatLine : public QObject, public AbstractUiMsg {
- Q_OBJECT
+class ChatLine : public QGraphicsItem {
+public:
+ ChatLine(int row, QAbstractItemModel *model,
+ const qreal &width,
+ const qreal ×tampWidth, const qreal &senderWidth, const qreal &contentsWidth,
+ const QPointF &senderPos, const QPointF &contentsPos,
+ QGraphicsItem *parent = 0);
- public:
- ChatLine(Message message);
- virtual ~ChatLine();
+ virtual inline QRectF boundingRect () const { return QRectF(0, 0, _width, _height); }
- qreal layout(qreal tsWidth, qreal nickWidth, qreal textWidth);
- qreal height() const { return hght; }
- int posToCursor(QPointF pos);
- void draw(QPainter *p, const QPointF &pos);
+ inline int row() { return _row; }
+ inline void setRow(int row) { _row = row; }
- enum SelectionMode { None, Partial, Full };
- void setSelection(SelectionMode, int start = 0, int end = 0);
+ inline const QAbstractItemModel *model() const { return _model; }
+ inline ChatScene *chatScene() const { return qobject_cast<ChatScene *>(scene()); }
- QDateTime timeStamp() const;
- QString sender() const;
- QString text() const;
- MsgId msgId() const;
- BufferInfo bufferInfo() const;
+ inline qreal width() const { return _width; }
+ inline qreal height() const { return _height; }
- bool isUrl(int pos) const;
- QUrl getUrl(int pos) const;
+ ChatItem &item(ChatLineModel::ColumnType);
+ inline ChatItem ×tampItem() { return _timestampItem; }
+ inline ChatItem &senderItem() { return _senderItem; }
+ inline ContentsChatItem &contentsItem() { return _contentsItem; }
- public slots:
+ virtual void paint (QPainter * painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ enum { Type = ChatScene::ChatLineType };
+ virtual inline int type() const { return Type; }
- private:
- qreal hght;
- Message msg;
- qreal tsWidth, senderWidth, textWidth;
- Style::StyledString styledTimeStamp, styledSender, styledText;
+ void setFirstColumn(const qreal ×tampWidth, const qreal &senderWidth, const QPointF &senderPos);
+ // setSecondColumn and setGeometryByWidth both also relocate the chatline.
+ // the _bottom_ position is passed via linePos. linePos is updated to the top of the chatLine.
+ void setSecondColumn(const qreal &senderWidth, const qreal &contentsWidth, const QPointF &contentsPos, qreal &linePos);
+ void setGeometryByWidth(const qreal &width, const qreal &contentsWidth, qreal &linePos);
- struct FormatRange {
- int start;
- int length;
- int height;
- QTextCharFormat format;
- };
- struct Word {
- int start;
- int length;
- int trailing;
- int height;
- };
- struct LineLayout {
- int y;
- int height;
- int start;
- int length;
- };
- QVector<int> charPos;
- QVector<int> charWidths;
- QVector<int> charHeights;
- QVector<int> charUrlIdx;
- QList<FormatRange> tsFormat, senderFormat, textFormat;
- QList<Word> words;
- QList<LineLayout> lineLayouts;
- int minHeight;
+ void setSelected(bool selected, ChatLineModel::ColumnType minColumn = ChatLineModel::ContentsColumn);
+ void setHighlighted(bool highlighted);
- SelectionMode selectionMode;
- int selectionStart, selectionEnd;
- void formatMsg(Message);
- void precomputeLine();
- QList<FormatRange> calcFormatRanges(const Style::StyledString &, QTextLayout::FormatRange additional = QTextLayout::FormatRange());
+private:
+ int _row;
+ QAbstractItemModel *_model;
+ ContentsChatItem _contentsItem;
+ SenderChatItem _senderItem;
+ TimestampChatItem _timestampItem;
+ qreal _width, _height;
+
+ enum { ItemMask = 0x3f,
+ Selected = 0x40,
+ Highlighted = 0x80
+ };
+ // _selection[1..0] ... Min Selected Column (See MessageModel::ColumnType)
+ // _selection[5..2] ... reserved for new column types
+ // _selection[6] ...... Selected
+ // _selection[7] ...... Highlighted
+ quint8 _selection; // save space, so we put both the col and the flags into one byte
};
#endif
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