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 inline QTextLayout *layout() const;
74 virtual QTextLayout::FormatRange selectionFormat() const;
75 virtual inline QVector<QTextLayout::FormatRange> additionalFormats() const { return QVector<QTextLayout::FormatRange>(); }
77 qint16 posToCursor(const QPointF &pos);
79 inline bool hasPrivateData() const { return (bool)_data; }
80 ChatItemPrivate *privateData() const;
81 virtual inline ChatItemPrivate *newPrivateData();
83 // WARNING: setGeometry and setHeight should not be used without either:
84 // a) calling prepareGeometryChange() immediately before setColumns()
85 // b) calling Chatline::setPos() immediately afterwards
86 inline void setGeometry(qreal width, qreal height) {
87 _boundingRect.setWidth(width);
88 _boundingRect.setHeight(height);
90 inline void setHeight(const qreal &height) {
91 _boundingRect.setHeight(height);
93 inline void setWidth(const qreal &width) {
94 _boundingRect.setWidth(width);
98 // internal selection stuff
99 void setSelection(int start, int length);
101 ChatItemPrivate *_data;
102 QRectF _boundingRect;
104 enum SelectionMode { NoSelection, PartialSelection, FullSelection };
105 SelectionMode _selectionMode;
106 qint16 _selectionStart, _selectionEnd;
108 friend class ChatLine;
111 struct ChatItemPrivate {
113 ChatItemPrivate(QTextLayout *l) : layout(l) {}
119 // inlines of ChatItem
120 QTextLayout *ChatItem::layout() const { return privateData()->layout; }
121 ChatItemPrivate *ChatItem::newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::WrapAnywhere)); }
123 // ************************************************************
125 // ************************************************************
127 //! A ChatItem for the timestamp column
128 class TimestampChatItem : public ChatItem {
130 TimestampChatItem(const qreal &width, const qreal &height, QGraphicsItem *parent) : ChatItem(width, height, QPointF(0, 0), parent) {}
131 enum { Type = ChatScene::TimestampChatItemType };
132 virtual inline int type() const { return Type; }
133 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
136 // ************************************************************
138 // ************************************************************
139 //! A ChatItem for the sender column
140 class SenderChatItem : public ChatItem {
142 SenderChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent) : ChatItem(width, height, pos, parent) {}
143 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
146 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
147 enum { Type = ChatScene::SenderChatItemType };
148 virtual inline int type() const { return Type; }
149 virtual inline ChatItemPrivate *newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::ManualWrap, Qt::AlignRight)); }
152 // ************************************************************
154 // ************************************************************
155 struct ContentsChatItemPrivate;
157 //! A ChatItem for the contents column
158 class ContentsChatItem : public ChatItem {
160 ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent);
162 enum { Type = ChatScene::ContentsChatItemType };
163 virtual inline int type() const { return Type; }
165 inline ChatLineModel::ColumnType column() const { return ChatLineModel::ContentsColumn; }
166 inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
169 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
170 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
171 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
172 virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
173 virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
174 virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
178 virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
180 virtual void doLayout();
181 virtual inline ChatItemPrivate *newPrivateData();
185 class WrapColumnFinder;
187 inline ContentsChatItemPrivate *privateData() const;
189 QList<Clickable> findClickables() const;
191 void showWebPreview(const Clickable &click);
192 void clearWebPreview();
194 qreal setGeometryByWidth(qreal w);
195 friend class ChatLine;
196 friend struct ContentsChatItemPrivate;
198 QFontMetricsF *_fontMetrics;
201 struct ContentsChatItem::Clickable {
202 // Don't change these enums without also changing the regexps in analyze()!
214 inline Clickable() : type(Invalid) {};
215 inline Clickable(Type type_, quint16 start_, quint16 length_) : type(type_), start(start_), length(length_) {};
216 inline bool isValid() const { return type != Invalid; }
219 struct ContentsChatItemPrivate : ChatItemPrivate {
220 ContentsChatItem *contentsItem;
221 QList<ContentsChatItem::Clickable> clickables;
222 ContentsChatItem::Clickable currentClickable;
225 ContentsChatItemPrivate(QTextLayout *l, const QList<ContentsChatItem::Clickable> &c, ContentsChatItem *parent)
226 : ChatItemPrivate(l), contentsItem(parent), clickables(c), hasDragged(false) {}
229 //inlines regarding ContentsChatItemPrivate
230 ChatItemPrivate *ContentsChatItem::newPrivateData() { return new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere), findClickables(), this); }
231 ContentsChatItemPrivate *ContentsChatItem::privateData() const { return (ContentsChatItemPrivate *)ChatItem::privateData(); }
233 class ContentsChatItem::WrapColumnFinder {
235 WrapColumnFinder(ChatItem *parent);
238 qint16 nextWrapColumn();
244 ChatLineModel::WrapList wrapList;
247 qreal choppedTrailing;
250 /*************************************************************************************************/
252 // Avoid circular include deps
253 #include "chatline.h"
254 const QAbstractItemModel *ChatItem::model() const { return static_cast<ChatLine *>(parentItem())->model(); }
255 int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }