Big update to remove deprecation warning from Qt 5.15.0

That is need on MacOS build as travis log is bigger than 50k lines
which breaks travis rules
And by the way deprecations are real
All file contains the same modification replace 0 to Qt::WindowFlags() when needed
as the class needs to be instantiated

Signed-off-by: vejmarie <jmverdun3@gmail.com>

src/Gui/CommandView.cpp

@@ -1799,7 +1799,7 @@ void StdViewScreenShot::activated(int iMsg)
                 selFilter = filter.last();
         }
 
-        FileOptionsDialog fd(getMainWindow(), 0);
+        FileOptionsDialog fd(getMainWindow(), Qt::WindowFlags());
         fd.setFileMode(QFileDialog::AnyFile);
         fd.setAcceptMode(QFileDialog::AcceptSave);
         fd.setWindowTitle(QObject::tr("Save picture"));

src/Gui/DemoMode.h

@@ -44,7 +44,7 @@ class GuiExport DemoMode : public QDialog
     Q_OBJECT
 
 public:
-    DemoMode(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DemoMode(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DemoMode();
 
     void accept();

src/Gui/DlgActivateWindowImp.h

@@ -40,7 +40,7 @@ class DlgActivateWindowImp : public QDialog
     Q_OBJECT
 
 public:
-    DlgActivateWindowImp(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgActivateWindowImp(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgActivateWindowImp();
 
 protected:

src/Gui/DlgCustomizeImp.h

@@ -51,7 +51,7 @@ class DlgCustomizeImp : public QDialog
     Q_OBJECT
 
 public:
-    DlgCustomizeImp(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgCustomizeImp(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgCustomizeImp();
 
     static void addPage(const char* className);

src/Gui/DlgDisplayPropertiesImp.h

@@ -56,7 +56,7 @@ class DlgDisplayPropertiesImp : public QDialog,
     Q_OBJECT
 
 public:
-    DlgDisplayPropertiesImp(bool floating, QWidget* parent = nullptr, Qt::WindowFlags fl = 0);
+    DlgDisplayPropertiesImp(bool floating, QWidget* parent = nullptr, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgDisplayPropertiesImp();
     /// Observer message from the Selection
     void OnChange(Gui::SelectionSingleton::SubjectType &rCaller,

src/Gui/DlgEditFileIncludePropertyExternal.h

@@ -39,7 +39,7 @@ class GuiExport DlgEditFileIncludePropertyExternal : public DlgRunExternal
     Q_OBJECT
 
 public:
-    DlgEditFileIncludePropertyExternal( App::PropertyFileIncluded& Prop, QWidget* parent = 0, Qt::WindowFlags fl = 0 );
+    DlgEditFileIncludePropertyExternal( App::PropertyFileIncluded& Prop, QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags() );
     virtual ~DlgEditFileIncludePropertyExternal();
 
     int Do(void);

src/Gui/DlgMacroExecuteImp.h

@@ -44,7 +44,7 @@ class DlgMacroExecuteImp : public QDialog, public Gui::WindowParameter
     Q_OBJECT
 
 public:
-    DlgMacroExecuteImp( QWidget* parent = 0, Qt::WindowFlags fl = 0 );
+    DlgMacroExecuteImp( QWidget* parent = 0, Qt::WindowFlags fl =  Qt::WindowFlags() );
     ~DlgMacroExecuteImp();
 
     void accept();

src/Gui/DlgMacroRecordImp.h

@@ -43,7 +43,7 @@ class DlgMacroRecordImp : public QDialog, public Gui::WindowParameter
     Q_OBJECT
 
 public:
-    DlgMacroRecordImp( QWidget* parent = 0, Qt::WindowFlags fl = 0 );
+    DlgMacroRecordImp( QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags() );
     virtual ~DlgMacroRecordImp();
 
 protected Q_SLOTS:

src/Gui/DlgMaterialPropertiesImp.h

@@ -39,7 +39,7 @@ class DlgMaterialPropertiesImp : public QDialog
     Q_OBJECT
 
 public:
-    DlgMaterialPropertiesImp(const std::string& mat, QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgMaterialPropertiesImp(const std::string& mat, QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgMaterialPropertiesImp();
     void setViewProviders(const std::vector<Gui::ViewProvider*>&);
     QColor diffuseColor() const;

src/Gui/DlgObjectSelection.h

@@ -33,7 +33,7 @@ class GuiExport DlgObjectSelection : public QDialog
 
 public:
     DlgObjectSelection(const std::vector<App::DocumentObject*> &objs, 
-            QWidget* parent = 0, Qt::WindowFlags fl = 0);
+            QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgObjectSelection();
 
     std::vector<App::DocumentObject*> getSelections() const;

src/Gui/DlgParameterImp.h

@@ -46,7 +46,7 @@ class GuiExport DlgParameterImp : public QDialog
     Q_OBJECT
 
 public:
-    DlgParameterImp( QWidget* parent = 0, Qt::WindowFlags fl = 0 );
+    DlgParameterImp( QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags() );
     ~DlgParameterImp();
 
     void accept();

src/Gui/DlgPreferencesImp.h

@@ -112,7 +112,7 @@ class GuiExport DlgPreferencesImp : public QDialog
     static void addPage(const std::string& className, const std::string& group);
     static void removePage(const std::string& className, const std::string& group);
 
-    DlgPreferencesImp(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgPreferencesImp(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgPreferencesImp();
 
     void accept();

src/Gui/DlgProjectInformationImp.h

@@ -40,7 +40,7 @@ class DlgProjectInformationImp : public QDialog
     Q_OBJECT
 
 public:
-    DlgProjectInformationImp(App::Document* doc, QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgProjectInformationImp(App::Document* doc, QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgProjectInformationImp();
     void accept();
 

src/Gui/DlgProjectUtility.h

@@ -35,7 +35,7 @@ class DlgProjectUtility : public QDialog
     Q_OBJECT
 
 public:
-    DlgProjectUtility(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgProjectUtility(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgProjectUtility();
 
 private Q_SLOTS:

src/Gui/DlgRunExternal.h

@@ -41,7 +41,7 @@ class GuiExport DlgRunExternal : public QDialog
     Q_OBJECT
 
 public:
-    DlgRunExternal(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgRunExternal(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     virtual ~DlgRunExternal();
 
     int Do(void);

src/Gui/DlgSettingsColorGradientImp.h

@@ -44,7 +44,7 @@ class DlgSettingsColorGradientImp : public QDialog
     Q_OBJECT
 
 public:
-    DlgSettingsColorGradientImp( QWidget* parent = 0, Qt::WindowFlags fl = 0 );
+    DlgSettingsColorGradientImp( QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags() );
     ~DlgSettingsColorGradientImp();
 
     void accept();

src/Gui/DlgUnitsCalculatorImp.h

@@ -42,7 +42,7 @@ class DlgUnitsCalculator : public QDialog
     Q_OBJECT
 
 public:
-    DlgUnitsCalculator(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgUnitsCalculator(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgUnitsCalculator();
 
 protected:

src/Gui/DocumentModel.cpp

@@ -628,7 +628,7 @@ Qt::ItemFlags DocumentModel::flags(const QModelIndex &index) const
     //    return Qt::ItemIsEnabled;
     //return QAbstractItemModel::flags(index);
     if (!index.isValid())
-        return 0;
+        return Qt::ItemFlags();
     return static_cast<DocumentModelIndex*>(index.internalPointer())->flags();
 }
 

src/Gui/EditorView.cpp

@@ -79,7 +79,7 @@ class EditorViewP {
  *  name 'name'.
  */
 EditorView::EditorView(QPlainTextEdit* editor, QWidget* parent)
-    : MDIView(0,parent,0), WindowParameter( "Editor" )
+    : MDIView(0,parent,Qt::WindowFlags()), WindowParameter( "Editor" )
 {
     d = new EditorViewP;
     d->lock = false;

src/Gui/FileDialog.h

@@ -49,13 +49,13 @@ class GuiExport FileDialog : public QFileDialog
 
 public:
     static QString getOpenFileName( QWidget * parent = 0, const QString & caption = QString(), const QString & dir = QString(), 
-                                    const QString & filter = QString(), QString * selectedFilter = 0, Options options = 0 );
+                                    const QString & filter = QString(), QString * selectedFilter = 0, Options options = Options() );
     static QString getSaveFileName( QWidget * parent = 0, const QString & caption = QString(), const QString & dir = QString(), 
-                                    const QString & filter = QString(), QString * selectedFilter = 0, Options options = 0 );
+                                    const QString & filter = QString(), QString * selectedFilter = 0, Options options = Options() );
     static QString getExistingDirectory( QWidget * parent = 0, const QString & caption = QString(), const QString & dir = QString(), 
                                          Options options = ShowDirsOnly );
     static QStringList getOpenFileNames( QWidget * parent = 0, const QString & caption = QString(), const QString & dir = QString(),
-                                         const QString & filter = QString(), QString * selectedFilter = 0, Options options = 0 );
+                                         const QString & filter = QString(), QString * selectedFilter = 0, Options options = Options() );
 
     /*! Return the last directory a file was read from or saved to. */
     static QString getWorkingDirectory();

src/Gui/InputVector.h

@@ -83,7 +83,7 @@ class GuiExport LocationDialog : public QDialog
     Q_OBJECT
 
 protected:
-    LocationDialog(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    LocationDialog(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     virtual ~LocationDialog();
 
 protected:
@@ -116,7 +116,7 @@ template <class Ui>
 class LocationDialogUi : public LocationDialog, public Ui
 {
 public:
-    LocationDialogUi(QWidget* parent = 0, Qt::WindowFlags fl = 0)  : LocationDialog(parent, fl)
+    LocationDialogUi(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags())  : LocationDialog(parent, fl)
     {
         this->setupUi(this);
         this->retranslate();
@@ -366,7 +366,7 @@ template <class Ui>
 class LocationDialogImp : public LocationDialog
 {
 public:
-    LocationDialogImp(QWidget* parent = 0, Qt::WindowFlags fl = 0)
+    LocationDialogImp(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags())
       : LocationDialog(parent, fl), ui(this)
     {
     }
@@ -556,7 +556,7 @@ class GuiExport LocationDialogUiImp : public LocationDialog
 {
 public:
     template<class T>
-    LocationDialogUiImp(T* t, QWidget* parent = 0, Qt::WindowFlags fl = 0)
+    LocationDialogUiImp(T* t, QWidget* parent = 0, Qt::WindowFlags fl =  Qt::WindowFlags())
       : LocationDialog(parent, fl), ui(new LocationImpUi<T>(t))
     {
         std::shared_ptr<T> uit = boost::any_cast< std::shared_ptr<T> >(ui->get());

src/Gui/MDIView.h

@@ -62,7 +62,7 @@ class GuiExport MDIView : public QMainWindow, public BaseView
      * the view will attach to the active document. Be aware, there isn't
      * always an active document.
      */
-    MDIView(Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=0);
+    MDIView(Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=Qt::WindowFlags());
     /** View destructor
      * Detach the view from the document, if attached.
      */

src/Gui/ManualAlignment.cpp

@@ -369,7 +369,7 @@ class AlignmentView : public Gui::AbstractSplitView
 public:
     QLabel* myLabel;
 
-    AlignmentView(Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=0)
+    AlignmentView(Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=Qt::WindowFlags())
         : AbstractSplitView(pcDocument, parent, wflags)
     {
         //anti-aliasing settings

src/Gui/Placement.h

@@ -45,7 +45,7 @@ class GuiExport Placement : public Gui::LocationDialog
     Q_OBJECT
 
 public:
-    Placement(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    Placement(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~Placement();
     void accept();
     void reject();
@@ -116,7 +116,7 @@ class GuiExport DockablePlacement : public Placement
     Q_OBJECT
 
 public:
-    DockablePlacement(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DockablePlacement(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DockablePlacement();
 
     void accept();

src/Gui/QSint/actionpanel/actionbox.h

@@ -182,7 +182,7 @@ class QSINT_EXPORT ActionBox : public QFrame
     void setIcon(const QPixmap & icon);
     /** Returns icon of the ActionBox.
       */
-    inline const QPixmap* icon() const { return iconLabel->pixmap(); }
+    inline QPixmap icon() { return iconLabel->pixmap(Qt::ReturnByValue); }
 
     /** Returns header item of the ActionBox.
       */

src/Gui/QSint/actionpanel/taskheader_p.cpp

@@ -264,7 +264,7 @@ void TaskHeader::keyPressEvent ( QKeyEvent * event )
   {
     case Qt::Key_Down:
     {
-      QKeyEvent ke(QEvent::KeyPress, Qt::Key_Tab, 0);
+      QKeyEvent ke(QEvent::KeyPress, Qt::Key_Tab,0 );
       QApplication::sendEvent(this, &ke);
       return;
     }

src/Gui/Quarter/QuarterWidget.cpp

@@ -154,7 +154,7 @@ class CustomGLWidget : public QOpenGLWidget {
 public:
     QSurfaceFormat myFormat;
 
-    CustomGLWidget(const QSurfaceFormat& format, QWidget* parent = 0, const QOpenGLWidget* shareWidget = 0, Qt::WindowFlags f = 0)
+    CustomGLWidget(const QSurfaceFormat& format, QWidget* parent = 0, const QOpenGLWidget* shareWidget = 0, Qt::WindowFlags f = Qt::WindowFlags())
      : QOpenGLWidget(parent, f), myFormat(format)
     {
         Q_UNUSED(shareWidget);

src/Gui/Quarter/QuarterWidget.h

@@ -81,9 +81,9 @@ class QUARTER_DLL_API QuarterWidget : public QGraphicsView {
 
 
 public:
-  explicit QuarterWidget(QWidget * parent = 0, const QtGLWidget * sharewidget = 0, Qt::WindowFlags f = 0);
-  explicit QuarterWidget(QtGLContext * context, QWidget * parent = 0, const QtGLWidget * sharewidget = 0, Qt::WindowFlags f = 0);
-  explicit QuarterWidget(const QtGLFormat & format, QWidget * parent = 0, const QtGLWidget * shareWidget = 0, Qt::WindowFlags f = 0);
+  explicit QuarterWidget(QWidget * parent = 0, const QtGLWidget * sharewidget = 0, Qt::WindowFlags f = Qt::WindowFlags());
+  explicit QuarterWidget(QtGLContext * context, QWidget * parent = 0, const QtGLWidget * sharewidget = 0, Qt::WindowFlags f = Qt::WindowFlags());
+  explicit QuarterWidget(const QtGLFormat & format, QWidget * parent = 0, const QtGLWidget * shareWidget = 0, Qt::WindowFlags f = Qt::WindowFlags());
   virtual ~QuarterWidget();
 
   enum TransparencyType {

src/Gui/Quarter/SoQTQuarterAdaptor.h

@@ -47,9 +47,9 @@ typedef void SoQTQuarterAdaptorCB(void* data, SoQTQuarterAdaptor* viewer);
 class QUARTER_DLL_API SoQTQuarterAdaptor :  public QuarterWidget {
 
 public:
-    explicit SoQTQuarterAdaptor(QWidget* parent = 0, const QtGLWidget* sharewidget = 0, Qt::WindowFlags f = 0);
-    explicit SoQTQuarterAdaptor(const QtGLFormat& format, QWidget* parent = 0, const QtGLWidget* shareWidget = 0, Qt::WindowFlags f = 0);
-    explicit SoQTQuarterAdaptor(QtGLContext* context, QWidget* parent = 0, const QtGLWidget* sharewidget = 0, Qt::WindowFlags f = 0);
+    explicit SoQTQuarterAdaptor(QWidget* parent = 0, const QtGLWidget* sharewidget = 0, Qt::WindowFlags f = Qt::WindowFlags());
+    explicit SoQTQuarterAdaptor(const QtGLFormat& format, QWidget* parent = 0, const QtGLWidget* shareWidget = 0, Qt::WindowFlags f = Qt::WindowFlags());
+    explicit SoQTQuarterAdaptor(QtGLContext* context, QWidget* parent = 0, const QtGLWidget* sharewidget = 0, Qt::WindowFlags f = Qt::WindowFlags());
     virtual ~SoQTQuarterAdaptor();
 
     //the functions available in soqtviewer but missing in quarter

src/Gui/SceneInspector.h

@@ -71,7 +71,7 @@ class DlgInspector : public QDialog
     Q_OBJECT
 
 public:
-    DlgInspector(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    DlgInspector(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~DlgInspector();
 
     void setDocument(Gui::Document* doc);

src/Gui/Splashscreen.cpp

@@ -826,7 +826,7 @@ void AboutDialog::on_copyButton_clicked()
 /* TRANSLATOR Gui::LicenseView */
 
 LicenseView::LicenseView(QWidget* parent)
-    : MDIView(0,parent,0)
+    : MDIView(0,parent,Qt::WindowFlags())
 {
     browser = new QTextBrowser(this);
     browser->setOpenExternalLinks(true);

src/Gui/Splashscreen.h

@@ -42,7 +42,7 @@ class SplashScreen : public QSplashScreen
     Q_OBJECT
 
 public:
-    SplashScreen(  const QPixmap & pixmap = QPixmap ( ), Qt::WindowFlags f = 0 );
+    SplashScreen(  const QPixmap & pixmap = QPixmap ( ), Qt::WindowFlags f = Qt::WindowFlags() );
     ~SplashScreen();
 
 protected:

src/Gui/SplitView3DInventor.h

@@ -42,7 +42,7 @@ class GuiExport AbstractSplitView : public MDIView, public ParameterGrp::Observe
     TYPESYSTEM_HEADER();
 
 public:
-    AbstractSplitView(Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=0);
+    AbstractSplitView(Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=Qt::WindowFlags());
     ~AbstractSplitView();
 
     virtual const char *getName(void) const;
@@ -109,7 +109,7 @@ class GuiExport SplitView3DInventor : public AbstractSplitView
     TYPESYSTEM_HEADER();
 
 public:
-    SplitView3DInventor(int views, Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=0);
+    SplitView3DInventor(int views, Gui::Document* pcDocument, QWidget* parent, Qt::WindowFlags wflags=Qt::WindowFlags());
     ~SplitView3DInventor();
 };
 

src/Gui/TextureMapping.h

@@ -39,7 +39,7 @@ class GuiExport TextureMapping : public QDialog
     Q_OBJECT
 
 public:
-    TextureMapping(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    TextureMapping(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~TextureMapping();
     void accept();
     void reject();

src/Gui/Transform.h

@@ -71,7 +71,7 @@ class GuiExport Transform : public Gui::LocationDialog
     Q_OBJECT
 
 public:
-    Transform(QWidget* parent = 0, Qt::WindowFlags fl = 0);
+    Transform(QWidget* parent = 0, Qt::WindowFlags fl = Qt::WindowFlags());
     ~Transform();
     void accept();
     void reject();

src/Gui/View3DInventor.h

@@ -68,7 +68,7 @@ class GuiExport View3DInventor : public MDIView, public ParameterGrp::ObserverTy
     TYPESYSTEM_HEADER();
 
 public:
-    View3DInventor(Gui::Document* pcDocument, QWidget* parent, const QtGLWidget* sharewidget = 0, Qt::WindowFlags wflags=0);
+    View3DInventor(Gui::Document* pcDocument, QWidget* parent, const QtGLWidget* sharewidget = 0, Qt::WindowFlags wflags=Qt::WindowFlags());
     ~View3DInventor();
 
     /// Message handler