Show headers in qt6

src/CMakeLists.txt

@@ -47,10 +47,15 @@ endif (HAVE_OPENBABEL)
 set(kalziumtools_SRCS
    ${kalziumtools_SRCS}
    calculator/calculator.cpp
-   calculator/nuclearCalculator.cpp
-   calculator/gasCalculator.cpp
+   calculator/calculator.h
    calculator/concCalculator.cpp
+   calculator/concCalculator.h
+   calculator/gasCalculator.cpp
+   calculator/gasCalculator.h
+   calculator/nuclearCalculator.cpp
+   calculator/nuclearCalculator.h
    calculator/titrationCalculator.cpp
+   calculator/titrationCalculator.h
 #   calculator/massCalculator.cpp
    )
 ki18n_wrap_ui(kalziumtools_SRCS

src/calculator/calculator.cpp

@@ -22,7 +22,7 @@
 calculator::calculator(QWidget *parent) : QDialog(parent)
 {
     setWindowTitle(i18nc("@title:window", "Chemical Calculator"));
-    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Help|QDialogButtonBox::Close);
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Help|QDialogButtonBox::Close, this);
     QWidget *mainWidget = new QWidget(this);
     QVBoxLayout *mainLayout = new QVBoxLayout;
     setLayout(mainLayout);