Make it run with Qt6

This is a huge commit. Changes:
* Obviously, make it compile
* Make it run (only scarcely tested)
* get rid of most of clang's warnings

Let's see what surprises are in store...

1 files changed, 4 insertions, 3 deletions

diff --git a/pictureswidget.cpp b/pictureswidget.cpp
index 10ae6b0..7abae64 100644
--- a/pictureswidget.cpp
+++ b/pictureswidget.cpp
@@ -16,6 +16,7 @@
 #include <QHeaderView>
 #include <QToolBar>
 #include <QApplication>
+#include <QActionGroup>
 
 #include "pictureswidget.h"
 #include "picturelistview.h"
@@ -51,7 +52,7 @@ PicturesWidget::PicturesWidget(QWidget *parent) : QWidget(parent), mWindowTitleB
 void PicturesWidget::setupWidget(){
     QToolBar *toolBar = new QToolBar;
     QAction *showInPicViewerA = new QAction(QIcon(":/snapshot.png"), tr("Show"), this);
-    connect(showInPicViewerA, &QAction::triggered, [=] {
+    connect(showInPicViewerA, &QAction::triggered, this, [=] {
         QModelIndexList r = mPictureListView->selectionModel()->selectedRows();
         if(!r.isEmpty()){
             showInPicViewer(r.first());
@@ -99,7 +100,7 @@ void PicturesWidget::setupWidget(){
         if(!mPictureListView->header()->isSectionHidden(hData.value(h))){
             a->setChecked(true);
         }
-        connect(a, &QAction::triggered, [=] { mPictureListView->toggleHeader(a); });
+        connect(a, &QAction::triggered, this, [=] { mPictureListView->toggleHeader(a); });
     }
     QIcon headerIcon = Helper::icon(Qt::transparent, qApp->palette().color(QPalette::Text), 'H', true, false);
     QAction *headerA = new QAction(headerIcon, tr("Show headers"), this);
@@ -190,7 +191,7 @@ void PicturesWidget::constructWindowTitle(){
     QString windowTitle = mWindowTitleBase;
     MappingData selected = mMappingTree->selectedItem();
     if(!selected.path.isEmpty()){
-        windowTitle = QString("%1 - [%2]").arg(mWindowTitleBase).arg(selected.path.join("/"));
+        windowTitle = QString("%1 - [%2]").arg(mWindowTitleBase, selected.path.join("/"));
     }
     emit needWindowTitleChange(windowTitle);
 }