1 /***************************************************************************
2 * Copyright (C) 2005-08 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 ***************************************************************************/
24 #include <QGraphicsItem>
27 #include "chatlinemodel.h"
28 #include "chatscene.h"
33 struct ChatItemPrivate;
35 class ChatItem : public QGraphicsItem {
37 ChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent);
41 inline const QAbstractItemModel *model() const;
42 inline int row() const;
43 virtual ChatLineModel::ColumnType column() const = 0;
44 inline ChatScene *chatScene() const { return qobject_cast<ChatScene *>(scene()); }
46 inline QRectF boundingRect() const { return _boundingRect; }
47 inline qreal width() const { return _boundingRect.width(); }
48 inline qreal height() const { return _boundingRect.height(); }
50 QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft) const;
51 virtual void doLayout();
54 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
56 QVariant data(int role) const;
58 // selection stuff, to be called by the scene
59 void clearSelection();
60 void setFullSelection();
61 void continueSelecting(const QPointF &pos);
63 QList<QRectF> findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive);
66 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
67 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
68 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
70 inline QTextLayout *layout() const;
72 virtual QTextLayout::FormatRange selectionFormat() const;
73 virtual inline QVector<QTextLayout::FormatRange> additionalFormats() const { return QVector<QTextLayout::FormatRange>(); }
75 qint16 posToCursor(const QPointF &pos);
77 inline bool hasPrivateData() const { return (bool)_data; }
78 ChatItemPrivate *privateData() const;
79 virtual inline ChatItemPrivate *newPrivateData();
81 // WARNING: setGeometry and setHeight should not be used without either:
82 // a) calling prepareGeometryChange() immediately before setColumns()
83 // b) calling Chatline::setPos() immediately afterwards
84 inline void setGeometry(qreal width, qreal height) {
85 _boundingRect.setWidth(width);
86 _boundingRect.setHeight(height);
88 inline void setHeight(const qreal &height) {
89 _boundingRect.setHeight(height);
91 inline void setWidth(const qreal &width) {
92 _boundingRect.setWidth(width);
96 // internal selection stuff
97 void setSelection(int start, int length);
99 ChatItemPrivate *_data;
100 QRectF _boundingRect;
102 enum SelectionMode { NoSelection, PartialSelection, FullSelection };
103 SelectionMode _selectionMode;
104 qint16 _selectionStart, _selectionEnd;
106 friend class ChatLine;
109 struct ChatItemPrivate {
111 ChatItemPrivate(QTextLayout *l) : layout(l) {}
117 // inlines of ChatItem
118 QTextLayout *ChatItem::layout() const { return privateData()->layout; }
119 ChatItemPrivate *ChatItem::newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::WrapAnywhere)); }
121 // ************************************************************
123 // ************************************************************
125 //! A ChatItem for the timestamp column
126 class TimestampChatItem : public ChatItem {
128 TimestampChatItem(const qreal &width, const qreal &height, QGraphicsItem *parent) : ChatItem(width, height, QPointF(0, 0), parent) {}
129 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
132 // ************************************************************
134 // ************************************************************
135 //! A ChatItem for the sender column
136 class SenderChatItem : public ChatItem {
138 SenderChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent) : ChatItem(width, height, pos, parent) {}
139 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
142 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
143 virtual inline ChatItemPrivate *newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::ManualWrap, Qt::AlignRight)); }
146 // ************************************************************
148 // ************************************************************
149 struct ContentsChatItemPrivate;
151 //! A ChatItem for the contents column
152 class ContentsChatItem : public ChatItem {
154 ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent);
156 inline ChatLineModel::ColumnType column() const { return ChatLineModel::ContentsColumn; }
157 inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
160 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
161 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
162 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
163 virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
164 virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
166 virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
168 virtual void doLayout();
169 virtual inline ChatItemPrivate *newPrivateData();
173 class WrapColumnFinder;
175 inline ContentsChatItemPrivate *privateData() const;
177 QList<Clickable> findClickables() const;
179 void showWebPreview(const Clickable &click);
180 void clearWebPreview();
182 qreal setGeometryByWidth(qreal w);
183 friend class ChatLine;
184 friend struct ContentsChatItemPrivate;
186 QFontMetricsF *_fontMetrics;
189 struct ContentsChatItem::Clickable {
190 // Don't change these enums without also changing the regexps in analyze()!
202 inline Clickable() : type(Invalid) {};
203 inline Clickable(Type type_, quint16 start_, quint16 length_) : type(type_), start(start_), length(length_) {};
204 inline bool isValid() const { return type != Invalid; }
207 struct ContentsChatItemPrivate : ChatItemPrivate {
208 ContentsChatItem *contentsItem;
209 QList<ContentsChatItem::Clickable> clickables;
210 ContentsChatItem::Clickable currentClickable;
213 ContentsChatItemPrivate(QTextLayout *l, const QList<ContentsChatItem::Clickable> &c, ContentsChatItem *parent)
214 : ChatItemPrivate(l), contentsItem(parent), clickables(c), hasDragged(false) {}
217 //inlines regarding ContentsChatItemPrivate
218 ChatItemPrivate *ContentsChatItem::newPrivateData() { return new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere), findClickables(), this); }
219 ContentsChatItemPrivate *ContentsChatItem::privateData() const { return (ContentsChatItemPrivate *)ChatItem::privateData(); }
221 class ContentsChatItem::WrapColumnFinder {
223 WrapColumnFinder(ChatItem *parent);
226 qint16 nextWrapColumn();
232 ChatLineModel::WrapList wrapList;
235 qreal choppedTrailing;
238 /*************************************************************************************************/
240 // Avoid circular include deps
241 #include "chatline.h"
242 const QAbstractItemModel *ChatItem::model() const { return static_cast<ChatLine *>(parentItem())->model(); }
243 int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }