return model()->data(index, role);
}
-QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) {
+QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) const {
QTextLayout *layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
QTextOption option;
return layout;
}
-void ChatItem::updateLayout() {
- if(!privateData()) {
- setPrivateData(new ChatItemPrivate(createLayout()));
- }
+void ChatItem::doLayout() {
QTextLayout *layout_ = layout();
layout_->beginLayout();
QTextLine line = layout_->createLine();
_data = 0;
}
+ChatItemPrivate *ChatItem::privateData() const {
+ if(!_data) {
+ ChatItem *that = const_cast<ChatItem *>(this);
+ that->_data = that->newPrivateData();
+ that->doLayout();
+ }
+ return _data;
+}
+
// NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
// This is a deliberate trade-off. (-> selectFmt creation, data() call)
void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
Q_UNUSED(option); Q_UNUSED(widget);
- if(!hasLayout())
- updateLayout();
painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
//if(_selectionMode == FullSelection) {
//painter->save();
qint16 ChatItem::posToCursor(const QPointF &pos) {
if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length();
if(pos.y() < 0) return 0;
- if(!hasLayout())
- updateLayout();
for(int l = layout()->lineCount() - 1; l >= 0; l--) {
QTextLine line = layout()->lineAt(l);
if(pos.y() >= line.y()) {
searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
}
- bool hadLayout = hasLayout();
- if(!hadLayout)
- updateLayout();
+ bool hadPrivateData = hasPrivateData();
foreach(int idx, indexList) {
QTextLine line = layout()->lineForTextPosition(idx);
resultList << QRectF(x, y, width, height);
}
- if(!hadLayout)
+ if(!hadPrivateData)
clearLayout();
return resultList;
}
return height();
}
-void ContentsChatItem::updateLayout() {
- if(!privateData()) {
- ContentsChatItemPrivate *data = new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere), findClickables(), this);
- setPrivateData(data);
- }
-
- // Now layout
+void ContentsChatItem::doLayout() {
ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
if(!wrapList.count()) return; // empty chatitem
// NOTE: This method is not threadsafe and not reentrant!
// (RegExps are not constant while matching, and they are static here for efficiency)
-QList<ContentsChatItem::Clickable> ContentsChatItem::findClickables() {
+QList<ContentsChatItem::Clickable> ContentsChatItem::findClickables() const {
// For matching URLs
static QString urlEnd("(?:>|[,.;:\"]*\\s|\\b|$)");
static QString urlChars("(?:[\\w\\-~@/?&=+$()!%#]|[,.;:]\\w)");
}
void ContentsChatItem::endHoverMode() {
- if(hasLayout()) {
+ if(hasPrivateData()) {
if(privateData()->currentClickable.isValid()) {
setCursor(Qt::ArrowCursor);
privateData()->currentClickable = Clickable();
// mouse move events always mean we're not hovering anymore...
endHoverMode();
// also, check if we have dragged the mouse
- if(hasLayout() && !privateData()->hasDragged && event->buttons() & Qt::LeftButton
+ if(hasPrivateData() && !privateData()->hasDragged && event->buttons() & Qt::LeftButton
&& (event->buttonDownScreenPos(Qt::LeftButton) - event->screenPos()).manhattanLength() >= QApplication::startDragDistance())
privateData()->hasDragged = true;
ChatItem::mouseMoveEvent(event);
void ContentsChatItem::showWebPreview(const Clickable &click) {
#ifdef HAVE_WEBKIT
- if(!hasLayout())
- updateLayout();
-
QTextLine line = layout()->lineForTextPosition(click.start);
qreal x = line.cursorToX(click.start);
qreal width = line.cursorToX(click.start + click.length) - x;
inline qreal width() const { return _boundingRect.width(); }
inline qreal height() const { return _boundingRect.height(); }
- inline bool hasLayout() const { return (bool)_data; }
- QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft);
- virtual inline QTextLayout *createLayout() { return createLayout(QTextOption::WrapAnywhere); }
- virtual void updateLayout();
+ QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft) const;
+ virtual void doLayout();
void clearLayout();
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
virtual inline QVector<QTextLayout::FormatRange> additionalFormats() const { return QVector<QTextLayout::FormatRange>(); }
qint16 posToCursor(const QPointF &pos);
- inline void setPrivateData(ChatItemPrivate *data) { Q_ASSERT(!_data); _data = data; }
- inline ChatItemPrivate *privateData() const;
+ inline bool hasPrivateData() const { return (bool)_data; }
+ ChatItemPrivate *privateData() const;
+ virtual inline ChatItemPrivate *newPrivateData();
// WARNING: setGeometry and setHeight should not be used without either:
// a) calling prepareGeometryChange() immediately before setColumns()
// inlines of ChatItem
QTextLayout *ChatItem::layout() const { return privateData()->layout; }
-ChatItemPrivate *ChatItem::privateData() const { return _data; }
+ChatItemPrivate *ChatItem::newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::WrapAnywhere)); }
// ************************************************************
// TimestampChatItem
public:
SenderChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent) : ChatItem(width, height, pos, parent) {}
virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
- virtual inline QTextLayout *createLayout() { return ChatItem::createLayout(QTextOption::WrapAnywhere, Qt::AlignRight); }
+
+protected:
+ virtual inline ChatItemPrivate *newPrivateData() { return new ChatItemPrivate(createLayout(QTextOption::WrapAnywhere, Qt::AlignRight)); }
};
// ************************************************************
virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
- virtual void updateLayout();
+ virtual void doLayout();
+ virtual inline ChatItemPrivate *newPrivateData();
private:
struct Clickable;
inline ContentsChatItemPrivate *privateData() const;
- QList<Clickable> findClickables();
+ QList<Clickable> findClickables() const;
void endHoverMode();
void showWebPreview(const Clickable &click);
void clearWebPreview();
ContentsChatItemPrivate(QTextLayout *l, const QList<ContentsChatItem::Clickable> &c, ContentsChatItem *parent) : ChatItemPrivate(l), contentsItem(parent), clickables(c), hasDragged(false) {}
};
-
//inlines regarding ContentsChatItemPrivate
+ChatItemPrivate *ContentsChatItem::newPrivateData() { return new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere), findClickables(), this); }
ContentsChatItemPrivate *ContentsChatItem::privateData() const { return (ContentsChatItemPrivate *)ChatItem::privateData(); }
class ContentsChatItem::WrapColumnFinder {