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, 5 insertions, 5 deletions

diff --git a/statisticsdialog.cpp b/statisticsdialog.cpp
index d533414..ccb513d 100644
--- a/statisticsdialog.cpp
+++ b/statisticsdialog.cpp
@@ -165,7 +165,7 @@ GraphWidget::GraphWidget(const QList<QList<QVariant> > data, const QString heade
 
 	//calc max width of data, maxData and total
 	QFontMetrics fmd = QFontMetrics(mDataFont);
-    for(QList<QVariant> d : mData){
+    for(const auto &d : mData){
 		int width = fmd.size(Qt::TextSingleLine, d.at(0).toString()).width();
 		if(width > mDescWidth){
 			mDescWidth = width;
@@ -178,9 +178,9 @@ GraphWidget::GraphWidget(const QList<QList<QVariant> > data, const QString heade
 	}
 
 	//set percentage width
-    for(QList<QVariant> d : mData){
+    for(const auto &d : mData){
         auto percentage = d.at(1).toDouble() * 100.0 / static_cast<double>(mTotal);
-		QString pString = QString("%1 (%2%)").arg(QString::number(d.at(1).toInt())).arg(QString::number(percentage, 'f', 2));
+        QString pString = QString("%1 (%2%)").arg(QString::number(d.at(1).toInt()), QString::number(percentage, 'f', 2));
 		int width = fmd.size(Qt::TextSingleLine, pString).width();
 		if(width > mPercentageWidth){
 			mPercentageWidth = width;
@@ -278,7 +278,7 @@ void GraphWidget::paintEvent(QPaintEvent *event){
 		opt.setAlignment(Qt::AlignRight | Qt::AlignVCenter);
 		QTextOption optLeft;
 		opt.setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
-        for(QList<QVariant> l : mData){
+        for(const auto &l : mData){
 			//draw lead
 			QRect textRect(0, 0, mDescWidth, mBarHeight);
 			p.drawText(textRect, l.at(0).toString(), opt);
@@ -297,7 +297,7 @@ void GraphWidget::paintEvent(QPaintEvent *event){
             auto pstartx = dataRect.width() + 2 * mMargin + mDescWidth;
             QRectF percentageRect(pstartx, 0, mPercentageWidth, 20);
             qreal percent = l.at(1).toInt() * 100.0 / static_cast<double>(mTotal);
-			QString pString = QString("%1 (%2%)").arg(QString::number(l.at(1).toInt())).arg(QString::number(percent, 'f', 2));
+            QString pString = QString("%1 (%2%)").arg(QString::number(l.at(1).toInt()), QString::number(percent, 'f', 2));
 			p.drawText(percentageRect, pString, optLeft);
 			//translate
 			p.translate(0, mMargin + mBarHeight);