回复: QGraphicsItem 如何导出为png或者svg图？
#6 [shixingya 12-04 12:04]
用了一个不太好的方式
void PaintView::onAssemblageAction(bool)
{
QListselectItems=this->scene()->selectedItems();
QGraphicsItemGroup * groupItems =this->scene()->createItemGroup(selectItems);
QRectF rect =groupItems->boundingRect();
QGraphicsScene*scene =new QGraphicsScene();
scene->setSceneRect(rect);
for(int i=0; iaddItem(sp);
}
scene->clearSelection();
QImage image(rect.width(),rect.height(),QImage::Format_ARGB32);
image.fill(Qt::transparent);//用透明色填充
QString pngName = "D:/scene44test.png";
QPainter painter(&image);
painter.setRenderHint(QPainter::Antialiasing);
scene->render(&painter);
bool saveSuccess =image.save(pngName);
for(int i=0; iscene()->addItem(sp);
}
if (!saveSuccess)
{
QMessageBox::about(NULL,"","组合图元失败!");
}
else
QMessageBox::about(NULL,"",&quo ..