+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2005/06 by The Quassel Team *
- * 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. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-
-#ifndef _CHATWIDGET_H_
-#define _CHATWIDGET_H_
-
-#include "style.h"
-#include "message.h"
-#include "buffer.h"
-#include <QtCore>
-#include <QtGui>
-
-class ChatLine;
-
-//!\brief Scroll area showing part of the chat messages for a given buffer.
-/** The contents of the scroll area, i.e. a widget of type ChatWidgetContents,
- * needs to be provided by calling init(). We don't create this widget ourselves, because
- * while a ChatWidget will be destroyed and recreated quite often (for example when switching
- * buffers), there ususally is no need to re-render its content every time (which can be time-consuming).
- * Before a ChatWidget is destroyed, it gives up its ownership of its contents, referring responsibility
- * back to where it came from.
- *
- * Because we use this as a custom widget in Qt Designer, we cannot use a constructor that takes custom
- * parameters. Instead, it is mandatory to call init() before using this widget.
- */
-class ChatWidget : public QAbstractScrollArea {
- Q_OBJECT
-
- public:
- ChatWidget(QWidget *parent = 0);
- ~ChatWidget();
- void init(QString net, QString buf);
-
- virtual QSize sizeHint() const;
-
- public slots:
- void clear();
- void prependChatLine(ChatLine *);
- void appendChatLine(ChatLine *);
- void prependChatLines(QList<ChatLine *>);
- void appendChatLines(QList<ChatLine *>);
- void setContents(QList<ChatLine *>);
-
- protected:
- virtual void resizeEvent(QResizeEvent *event);
- virtual void paintEvent(QPaintEvent * event);
- virtual void mousePressEvent(QMouseEvent *event);
- virtual void mouseReleaseEvent(QMouseEvent *event);
- virtual void mouseMoveEvent(QMouseEvent *event);
- virtual void mouseDoubleClickEvent(QMouseEvent *event);
-
- private slots:
- void layout();
- void scrollBarAction(int);
- void scrollBarValChanged(int);
- void ensureVisible(int line);
- void handleScrollTimer();
-
- private:
- QString networkName, bufferName;
- enum SelectionMode { NoSelection, TextSelected, LinesSelected };
- enum MouseMode { Normal, Pressed, DragTsSep, DragTextSep, MarkText, MarkLines };
- enum MousePos { None, OverTsSep, OverTextSep, OverUrl };
- MouseMode mouseMode;
- MousePos mousePos;
- QPoint dragStartPos;
- MouseMode dragStartMode;
- int dragStartLine;
- int dragStartCursor;
- int curCursor;
- int curLine;
- SelectionMode selectionMode;
- int selectionStart, selectionEnd, selectionLine;
-
- int bottomLine, bottomLineOffset;
-
- QList<ChatLine *> lines;
- QList<qreal> ycoords;
- QTimer *scrollTimer;
- QPoint pointerPosition;
-
- int senderX;
- int textX;
- int tsWidth;
- int senderWidth;
- int textWidth;
- int tsGrabPos; ///< X-Position for changing the timestamp width
- int senderGrabPos;
- void computePositions();
-
- int width;
- qreal height;
- qreal y;
-
- void adjustScrollBar();
-
- int yToLineIdx(qreal y);
- void clearSelection();
- QString selectionToString();
- void handleMouseMoveEvent(const QPoint &pos);
-
-};
-
-//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 {
- Q_OBJECT
-
- public:
- ChatLine(Message message);
- ~ChatLine();
-
- qreal layout(qreal tsWidth, qreal nickWidth, qreal textWidth);
- qreal height() { return hght; }
- int posToCursor(QPointF pos);
- void draw(QPainter *p, const QPointF &pos);
-
- enum SelectionMode { None, Partial, Full };
- void setSelection(SelectionMode, int start = 0, int end = 0);
- QDateTime timeStamp();
- QString sender();
- QString text();
- uint msgId();
- BufferId bufferId();
-
- bool isUrl(int pos);
- QUrl getUrl(int pos);
-
- public slots:
-
- private:
- qreal hght;
- Message msg;
- qreal tsWidth, senderWidth, textWidth;
- Style::FormattedString tsFormatted, senderFormatted, textFormatted;
-
- 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;
-
- SelectionMode selectionMode;
- int selectionStart, selectionEnd;
- void formatMsg(Message);
- void precomputeLine();
- QList<FormatRange> calcFormatRanges(const Style::FormattedString &, QTextLayout::FormatRange additional = QTextLayout::FormatRange());
-};
-
-/*
-struct LayoutTask {
- QList<Message> messages;
- Buffer *buffer;
- QString net, buf;
- QList<ChatLine *> lines;
-};
-
-Q_DECLARE_METATYPE(LayoutTask);
-
-class LayoutThread : public QThread {
- Q_OBJECT
-
- public:
- LayoutThread();
- virtual ~LayoutThread();
- virtual void run();
-
- public:
- void processTask(LayoutTask task);
-
- signals:
- void taskProcessed(LayoutTask task);
-
- private:
- QList<LayoutTask> queue;
- QMutex mutex;
- QWaitCondition condition;
- bool abort;
-
-};
-*/
-
-#endif
projects / quassel.git / blobdiff