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);
55 enum { Type = ChatScene::ChatItemType };
56 virtual inline int type() const { return Type; }
58 QVariant data(int role) const;
60 // selection stuff, to be called by the scene
61 void clearSelection();
62 void setFullSelection();
63 void continueSelecting(const QPointF &pos);
65 QList<QRectF> findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive);
68 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
69 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
70 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
72 //virtual bool handleClick(ClickMode mode);
74 inline QTextLayout *layout() const;
76 virtual QTextLayout::FormatRange selectionFormat() const;
77 virtual inline QVector<QTextLayout::FormatRange> additionalFormats() const { return QVector<QTextLayout::FormatRange>(); }
79 qint16 posToCursor(const QPointF &pos);
81 inline bool hasPrivateData() const { return (bool)_data; }
82 ChatItemPrivate *privateData() const;
83 virtual inline ChatItemPrivate *newPrivateData();
85 // WARNING: setGeometry and setHeight should not be used without either:
86 // a) calling prepareGeometryChange() immediately before setColumns()
87 // b) calling Chatline::setPos() immediately afterwards
88 inline void setGeometry(qreal width, qreal height) {
89 _boundingRect.setWidth(width);
90 _boundingRect.setHeight(height);
92 inline void setHeight(const qreal &height) {
93 _boundingRect.setHeight(height);
95 inline void setWidth(const qreal &width) {
96 _boundingRect.setWidth(width);
100 // internal selection stuff
101 void setSelection(int start, int length);
103 ChatItemPrivate *_data;
104 QRectF _boundingRect;
106 enum SelectionMode { NoSelection, PartialSelection, FullSelection };
107 SelectionMode _selectionMode;
108 qint16 _selectionStart, _selectionEnd;
110 friend class ChatLine;
113 struct ChatItemPrivate {
115 ChatItemPrivate(QTextLayout *l) : layout(l) {}
121 // inlines of ChatItem
122 QTextLayout *ChatItem::layout() const { return privateData()->layout; }
123 ChatItemPrivate *ChatItem::newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::WrapAnywhere)); }
125 // ************************************************************
127 // ************************************************************
129 //! A ChatItem for the timestamp column
130 class TimestampChatItem : public ChatItem {
132 TimestampChatItem(const qreal &width, const qreal &height, QGraphicsItem *parent) : ChatItem(width, height, QPointF(0, 0), parent) {}
133 enum { Type = ChatScene::TimestampChatItemType };
134 virtual inline int type() const { return Type; }
135 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
138 // ************************************************************
140 // ************************************************************
141 //! A ChatItem for the sender column
142 class SenderChatItem : public ChatItem {
144 SenderChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent) : ChatItem(width, height, pos, parent) {}
145 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
148 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
149 enum { Type = ChatScene::SenderChatItemType };
150 virtual inline int type() const { return Type; }
151 virtual inline ChatItemPrivate *newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::ManualWrap, Qt::AlignRight)); }
154 // ************************************************************
156 // ************************************************************
157 struct ContentsChatItemPrivate;
159 //! A ChatItem for the contents column
160 class ContentsChatItem : public ChatItem {
162 ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent);
164 enum { Type = ChatScene::ContentsChatItemType };
165 virtual inline int type() const { return Type; }
167 inline ChatLineModel::ColumnType column() const { return ChatLineModel::ContentsColumn; }
168 inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
171 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
172 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
173 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
174 virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
175 virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
176 virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
180 virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
182 virtual void doLayout();
183 virtual inline ChatItemPrivate *newPrivateData();
187 class WrapColumnFinder;
189 inline ContentsChatItemPrivate *privateData() const;
191 QList<Clickable> findClickables() const;
193 void showWebPreview(const Clickable &click);
194 void clearWebPreview();
196 qreal setGeometryByWidth(qreal w);
197 friend class ChatLine;
198 friend struct ContentsChatItemPrivate;
200 QFontMetricsF *_fontMetrics;
203 struct ContentsChatItem::Clickable {
204 // Don't change these enums without also changing the regexps in analyze()!
216 inline Clickable() : type(Invalid) {};
217 inline Clickable(Type type_, quint16 start_, quint16 length_) : type(type_), start(start_), length(length_) {};
218 inline bool isValid() const { return type != Invalid; }
221 struct ContentsChatItemPrivate : ChatItemPrivate {
222 ContentsChatItem *contentsItem;
223 QList<ContentsChatItem::Clickable> clickables;
224 ContentsChatItem::Clickable currentClickable;
227 ContentsChatItemPrivate(QTextLayout *l, const QList<ContentsChatItem::Clickable> &c, ContentsChatItem *parent)
228 : ChatItemPrivate(l), contentsItem(parent), clickables(c), hasDragged(false) {}
231 //inlines regarding ContentsChatItemPrivate
232 ChatItemPrivate *ContentsChatItem::newPrivateData() { return new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere), findClickables(), this); }
233 ContentsChatItemPrivate *ContentsChatItem::privateData() const { return (ContentsChatItemPrivate *)ChatItem::privateData(); }
235 class ContentsChatItem::WrapColumnFinder {
237 WrapColumnFinder(ChatItem *parent);
240 qint16 nextWrapColumn();
246 ChatLineModel::WrapList wrapList;
249 qreal choppedTrailing;
252 /*************************************************************************************************/
254 // Avoid circular include deps
255 #include "chatline.h"
256 const QAbstractItemModel *ChatItem::model() const { return static_cast<ChatLine *>(parentItem())->model(); }
257 int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }