Refactored code to handle NewFile dialog to honor black theme fix #291 (#315)

* Added displayNewFileDialog()

* Added MainWindow::displayNewFileDialog()

* Use displayNewFileDialog()

src/MainWindow.cpp

@@ -280,6 +280,13 @@ void MainWindow::openNewFile(const QString &fn, int analLevel, QList<QString> ad
     displayAnalysisOptionsDialog(analLevel, advancedOptions);
 }
 
+void MainWindow::displayNewFileDialog()
+{
+    NewFileDialog *n = new NewFileDialog();
+    n->setAttribute(Qt::WA_DeleteOnClose);
+    n->show();
+}
+
 void MainWindow::displayAnalysisOptionsDialog(int analLevel, QList<QString> advancedOptions)
 {
     OptionsDialog *o = new OptionsDialog(this);

src/MainWindow.h

@@ -58,6 +58,7 @@ public:
     ~MainWindow();
 
     void openNewFile(const QString &fn, int analLevel = -1, QList<QString> advancedOptions = QList<QString>());
+    void displayNewFileDialog();
     void displayAnalysisOptionsDialog(int analLevel, QList<QString> advancedOptions);
     void openProject(const QString &project_name);
 

src/main.cpp

@@ -98,9 +98,8 @@ int main(int argc, char *argv[])
             return 1;
         }
 
-        NewFileDialog *n = new NewFileDialog();
-        n->setAttribute(Qt::WA_DeleteOnClose);
-        n->show();
+        MainWindow *main = new MainWindow();
+        main->displayNewFileDialog();
     }
     else // filename specified as positional argument
     {