How to get the QRect size of MultiLine QString text that need display in multiple line?

[vitasr]

I have a long QString text need to display in multiple-line,so I use QFontMetrics::boundingRect to calculate the QRect size ,because my text is long so that I used Qt::TextWordWrap ,but the rect size returned is only the single-line,so what is the wrong ?My code is underline.Thanks!

QPainter painter(this);
QString text("1234567890123456789012345678901234567890"
             "1234567890123456789012345678901234567890"
             "1234567890123456789012345678901234567890"
             "1234567890123456789012345678901234567890");
int width = this->width()-40;
int flags = Qt::TextWordWrap;
qDebug()<<"font:"<<painter.font().pointSize()<<",pixelSize="<<painter.font().pixelSize();

QFontMetrics metrics = painter.fontMetrics();
QRect textBoundingRect = metrics.boundingRect(QRect(0,0,width,0),flags,text);
painter.translate(20,20);
painter.drawRect(textBoundingRect);
painter.drawText(textBoundingRect,Qt::TextWordWrap,text);

[joeQ]

@vitasr 您好！

相同类型的问题，发布一个即可。 随后，可以手动合并，删除一个。这个我就不替你修改。

原因已经在上一个帖子说明了，这里说下我的方法，仅供参考；

1. 查分QString 为多个子串。split即可；
2. 分别计算每个子串的QRect;
3. 合并QRect=> QRect QRect::united(const QRect &rectangle) const

希望对您有所帮助。