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 QString selection() const;
62 void clearSelection();
63 void setFullSelection();
64 void continueSelecting(const QPointF &pos);
65 bool hasSelection() const;
66 bool isPosOverSelection(const QPointF &pos) const;
68 QList<QRectF> findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive);
70 virtual void handleClick(const QPointF &pos, ChatScene::ClickMode);
73 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
74 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
75 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
77 inline QTextLayout *layout() const;
79 virtual QTextLayout::FormatRange selectionFormat() const;
80 virtual inline QVector<QTextLayout::FormatRange> additionalFormats() const { return QVector<QTextLayout::FormatRange>(); }
82 qint16 posToCursor(const QPointF &pos) const;
84 inline bool hasPrivateData() const { return (bool)_data; }
85 ChatItemPrivate *privateData() const;
86 virtual inline ChatItemPrivate *newPrivateData();
88 // WARNING: setGeometry and setHeight should not be used without either:
89 // a) calling prepareGeometryChange() immediately before setColumns()
90 // b) calling Chatline::setPos() immediately afterwards
91 inline void setGeometry(qreal width, qreal height) {
92 _boundingRect.setWidth(width);
93 _boundingRect.setHeight(height);
95 inline void setHeight(const qreal &height) {
96 _boundingRect.setHeight(height);
98 inline void setWidth(const qreal &width) {
99 _boundingRect.setWidth(width);
103 // internal selection stuff
104 void setSelection(int start, int length);
106 ChatItemPrivate *_data;
107 QRectF _boundingRect;
109 enum SelectionMode { NoSelection, PartialSelection, FullSelection };
110 SelectionMode _selectionMode;
111 qint16 _selectionStart, _selectionEnd;
113 friend class ChatLine;
116 struct ChatItemPrivate {
118 ChatItemPrivate(QTextLayout *l) : layout(l) {}
124 // inlines of ChatItem
125 QTextLayout *ChatItem::layout() const { return privateData()->layout; }
126 ChatItemPrivate *ChatItem::newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::WrapAnywhere)); }
128 // ************************************************************
130 // ************************************************************
132 //! A ChatItem for the timestamp column
133 class TimestampChatItem : public ChatItem {
135 TimestampChatItem(const qreal &width, const qreal &height, QGraphicsItem *parent) : ChatItem(width, height, QPointF(0, 0), parent) {}
136 enum { Type = ChatScene::TimestampChatItemType };
137 virtual inline int type() const { return Type; }
138 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
141 // ************************************************************
143 // ************************************************************
144 //! A ChatItem for the sender column
145 class SenderChatItem : public ChatItem {
147 SenderChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent) : ChatItem(width, height, pos, parent) {}
148 virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
151 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
152 enum { Type = ChatScene::SenderChatItemType };
153 virtual inline int type() const { return Type; }
154 virtual inline ChatItemPrivate *newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::ManualWrap, Qt::AlignRight)); }
157 // ************************************************************
159 // ************************************************************
160 struct ContentsChatItemPrivate;
162 //! A ChatItem for the contents column
163 class ContentsChatItem : public ChatItem {
165 ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent);
167 enum { Type = ChatScene::ContentsChatItemType };
168 virtual inline int type() const { return Type; }
170 inline ChatLineModel::ColumnType column() const { return ChatLineModel::ContentsColumn; }
171 inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
174 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
175 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
176 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
177 virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
178 virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
179 virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
183 virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
185 virtual void doLayout();
186 virtual inline ChatItemPrivate *newPrivateData();
190 class WrapColumnFinder;
192 inline ContentsChatItemPrivate *privateData() const;
194 QList<Clickable> findClickables() const;
196 void showWebPreview(const Clickable &click);
197 void clearWebPreview();
199 qreal setGeometryByWidth(qreal w);
200 friend class ChatLine;
201 friend struct ContentsChatItemPrivate;
203 QFontMetricsF *_fontMetrics;
206 struct ContentsChatItem::Clickable {
207 // Don't change these enums without also changing the regexps in analyze()!
219 inline Clickable() : type(Invalid) {};
220 inline Clickable(Type type_, quint16 start_, quint16 length_) : type(type_), start(start_), length(length_) {};
221 inline bool isValid() const { return type != Invalid; }
224 struct ContentsChatItemPrivate : ChatItemPrivate {
225 ContentsChatItem *contentsItem;
226 QList<ContentsChatItem::Clickable> clickables;
227 ContentsChatItem::Clickable currentClickable;
230 ContentsChatItemPrivate(QTextLayout *l, const QList<ContentsChatItem::Clickable> &c, ContentsChatItem *parent)
231 : ChatItemPrivate(l), contentsItem(parent), clickables(c), hasDragged(false) {}
234 //inlines regarding ContentsChatItemPrivate
235 ChatItemPrivate *ContentsChatItem::newPrivateData() { return new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere), findClickables(), this); }
236 ContentsChatItemPrivate *ContentsChatItem::privateData() const { return (ContentsChatItemPrivate *)ChatItem::privateData(); }
238 class ContentsChatItem::WrapColumnFinder {
240 WrapColumnFinder(ChatItem *parent);
243 qint16 nextWrapColumn();
249 ChatLineModel::WrapList wrapList;
252 qreal choppedTrailing;
255 /*************************************************************************************************/
257 // Avoid circular include deps
258 #include "chatline.h"
259 const QAbstractItemModel *ChatItem::model() const { return static_cast<ChatLine *>(parentItem())->model(); }
260 int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }