How to upgrade plugins in newly upgraded Vaa3D(Qt6) system - Vaa3D/Vaa3D_Wiki GitHub Wiki

1、Add QT += widgets in .pro file of the plugin;
2、Add Q_PLUGIN_METADATA(IID"com.janelia.v3d.V3DPluginInterface/2.1") line below Q_INTERFACES(V3DPluginInterface2_1) line in plugin.h file; 
3、annotate this line code in plugin.cpp file;
    //Q_EXPORT_PLUGIN2(.., ..);

Above,you can build your plugins successfully.

error 1 : use of undeclared identifier 'QInputDialog'

#include <QInputDialog>

error 4: ISO C++17 does not allow 'register' storage class specifier

register EdgeTableEntry *pETEchase;
==>
remove register 

error 5: C3646: “regExp”: undeclared identifier

#include <QRegularExpression>
QRegExp 
==>QRegularExpression

error 6: no member named 'start' in 'QTime'

change QTime to QElapsedTimer 

error 7: no member named 'toAscii' in 'QString'

FILE * fp = fopen(swcfile.toAscii(), "wt");
==>
FILE * fp = fopen(swcfile.toLatin1(), "wt");

error 8: no member named 'getInteger' in 'QInputDialog'

 int threshold = QInputDialog::getInteger(parent, QObject::tr("Threshold"),
                                             QObject::tr("Enter threshold:"),
                                             100, 0, 255, 1, &ok);
==>
  int threshold = QInputDialog::getInt(parent, QObject::tr("Threshold"),
                                             QObject::tr("Enter threshold:"),
                                             100, 0, 255, 1, &ok);

error 9: 'UnicodeUTF8' is not a member of 'QApplication'

ParaDialog->setWindowTitle(QApplication::translate("ParaDialog", "C.elegans Straighten", 0, QApplication::UnicodeUTF8));
==>
ParaDialog->setWindowTitle(QApplication::translate("ParaDialog", "C.elegans Straighten", 0));

error 10: reference to 'byte' is ambiguous typedef byte cs_byte; ^~~~

C++17 added std::byte and changed the semantics of bytes. In order to avoid pollution of the global namespace. And we need to isolate std::byte from ourselves. Our change is to move its byte into our namespace. Or delete C++17 in the pro file 
==>
#define byte win_byte_override
#include <Windows.h>
#include <gdiplus.h>
#undef byte

error 11: no match for 'operator<<' (operand types are 'QTextStream' and '')

Most occurrences of endl triggered the warning: 'endl' is deprecated: Use Qt::endl. Some occurrences triggered an error: ‘endl’ was not declared in this scope. The compiler couldn’t distinguish between std::endl and Qt::endl.

myfile<<"# id,type,x,y,z,r,pid"<<endl;
==>
myfile<<"# id,type,x,y,z,r,pid"<<Qt::endl;

error 12: no member named 'insertMulti' in 'QHash<long, long>'

This function is obsolete in Qt6. It is provided to keep old source code working. We strongly advise against using it in new code. Use insert() instead.

*error 13: cannot initialize a parameter of type 'QEnterEvent ' with an lvalue of type 'QEvent'

void MyComboBox::enterEvent(QEvent *e)
{
    updateList();
    QComboBox::enterEvent(e);
}
==>
void MyComboBox::enterEvent(QEnterEvent *e)
{
    updateList();
    QComboBox::enterEvent(e); 

error 14: 'class QListWidget' has no member named 'isItemSelected'; did you mean 'itemClicked'?

  if (list_markers->isItemSelected(list_markers->currentItem()))    
==>
  if (list_markers->currentItem()->isSelected())

This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.

Returns true if item is selected; otherwise returns false.

This function is deprecated. Use QListWidgetItem::isSelected instead.

error 15: macro "min" passed 3 arguments, but takes just 2 error: expected ‘)’ before ‘const

#undef max
#undef min

error 16: expected type-specifier before 'QWindowsStyle' QGroupBox_channel_main->setStyle(new QWindowsStyle()); ^~~~~~~~~~~~~

QGroupBox_channel_main->setStyle(new QWindowsStyle());  
==>    
QGroupBox_channel_main->setStyle(new QCommonStyle());

error 17: no member named 'setBackgroundColor' in 'QListWidgetItem'

QListWidgetItem * newItem = new QListWidgetItem;
            newItem->setText("marker "+ QString::number(i+1)+" on spine. Rejected");
            newItem->setBackgroundColor(red);
==>              
QListWidgetItem * newItem = new QListWidgetItem;
            newItem->setText("marker "+ QString::number(i+1)+" on spine. Rejected");
            newItem->setBackground(red);                                                               ^

error 18: QString::SplitBehavior’ has not been declared

auto nameParts = customer->name()
    .split(' ', QString::SkipEmptyParts);

Like many other enum constants, QString::SkipEmptyParts was moved into the namespace Qt. The problem often occurs as a warning:

‘... QString::split ...’ is deprecated: Use Qt::SplitBehavior variant instead [-Wdeprecated-declarations]

Fix:

auto nameParts = customer->name()
    .split(' ', Qt::SkipEmptyParts);

error 19: ISO C++17 does not allow dynamic exception specifications

void *fhandle = 0, int n_pages = -1, bool do_open = true ) throw (iim::IOException);                                                                      ^~~~~
==> 
void *fhandle = 0, int n_pages = -1, bool do_open = true ) noexcept(false);

error 20: QPrintDialog: No such file or directory

#include ^~~~~~~~~~~~~~

QT += printsupport

error 21： no member named 'Delta' in QWheelEvent

QWheelEvent *wheelEvent = static_cast<QWheelEvent *>(event);
            if(wheelEvent->delta() > 0) {
                this->spin->setValue(this->spin->value() + 1);
==> 
QWheelEvent *wheelEvent = static_cast<QWheelEvent *>(event);
            if(wheelEvent->angleDelta().y() > 0) {
                this->spin->setValue(this->spin->value() + 1);

error 22: cannot find -lv3dtiff ,error: ld returned 1 exit status

You can follow the instruction to build tiff library and then link libtiff.a or libtiff.so in your pro file.