[TD] handle deletions of hatches

- also uniform line endings in ViewProviderLeader.cpp

src/Mod/TechDraw/Gui/ViewProviderGeomHatch.cpp

@@ -181,7 +181,6 @@ void ViewProviderGeomHatch::updateGraphic(void)
    }
 }
 
-
 void ViewProviderGeomHatch::getParameters(void)
 {
     Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
@@ -198,6 +197,14 @@ void ViewProviderGeomHatch::getParameters(void)
     WeightPattern.setValue(weight);
 }
 
+bool ViewProviderGeomHatch::canDelete(App::DocumentObject *obj) const
+{
+    // deletion of hatches don't destroy anything
+    // thus we can pass this action
+    Q_UNUSED(obj)
+    return true;
+}
+
 TechDraw::DrawGeomHatch* ViewProviderGeomHatch::getViewObject() const
 {
     return dynamic_cast<TechDraw::DrawGeomHatch*>(pcObject);

src/Mod/TechDraw/Gui/ViewProviderGeomHatch.h

@@ -28,7 +28,6 @@
 #include <App/DocumentObject.h>
 #include <App/FeaturePython.h>
 #include <App/PropertyStandard.h>
-
 #include <Gui/ViewProviderFeature.h>
 
 
@@ -52,19 +51,18 @@ public:
     App::PropertyFloat       WeightPattern;
     App::PropertyColor       ColorPattern;
 
-
     virtual void attach(App::DocumentObject *) override;
     virtual void updateData(const App::Property*) override;
     virtual void onChanged(const App::Property *prop) override;
     virtual bool setEdit(int ModNum) override;
     virtual void unsetEdit(int ModNum) override;
     virtual bool doubleClicked(void) override;
-
     virtual bool useNewSelectionModel(void) const override {return false;}
     virtual void setDisplayMode(const char* ModeName) override;
     virtual std::vector<std::string> getDisplayModes(void) const override;
     void updateGraphic(void);
     void getParameters(void);
+    virtual bool canDelete(App::DocumentObject* obj) const;
 
     TechDraw::DrawGeomHatch* getViewObject() const;
 
@@ -73,5 +71,4 @@ public:
 
 } // namespace TechDrawGui
 
-
 #endif // DRAWINGGUI_VIEWPROVIDERHATCH_H

src/Mod/TechDraw/Gui/ViewProviderHatch.cpp

@@ -113,6 +113,7 @@ void ViewProviderHatch::onChanged(const App::Property* prop)
         }
     }
 }
+
 void ViewProviderHatch::updateData(const App::Property* prop)
 {
     Gui::ViewProviderDocumentObject::updateData(prop);
@@ -123,6 +124,14 @@ TechDraw::DrawHatch* ViewProviderHatch::getViewObject() const
     return dynamic_cast<TechDraw::DrawHatch*>(pcObject);
 }
 
+bool ViewProviderHatch::canDelete(App::DocumentObject *obj) const
+{
+    // deletion of hatches don't destroy anything
+    // thus we can pass this action
+    Q_UNUSED(obj)
+    return true;
+}
+
 Gui::MDIView *ViewProviderHatch::getMDIView() const
 {
     auto obj = getViewObject();
@@ -131,4 +140,3 @@ Gui::MDIView *ViewProviderHatch::getMDIView() const
     if(!vp) return 0;
     return vp->getMDIView();
 }
-

src/Mod/TechDraw/Gui/ViewProviderHatch.h

@@ -54,6 +54,7 @@ public:
     virtual std::vector<std::string> getDisplayModes(void) const override;
     virtual void onChanged(const App::Property* prop) override;
     virtual void updateData(const App::Property*) override;
+    virtual bool canDelete(App::DocumentObject* obj) const;
 
     TechDraw::DrawHatch* getViewObject() const;
 

src/Mod/TechDraw/Gui/ViewProviderLeader.cpp

@@ -236,8 +236,8 @@ bool ViewProviderLeader::onDelete(const std::vector<std::string> &)
 {
     // a leader line cannot be deleted if it has a child weld symbol
 
-    // get childs
-    auto childs = claimChildren();
+    // get childs
+    auto childs = claimChildren();
 
     if (!childs.empty()) {
         QString bodyMessage;
@@ -258,7 +258,7 @@ bool ViewProviderLeader::canDelete(App::DocumentObject *obj) const
 {
     // deletions of Leader line objects don't destroy anything
     // thus we can pass this action
-    // that the parent view cannot be deleted is handled
+    // that the parent view cannot be deleted is handled
     // in its onDelete() function
     Q_UNUSED(obj)
     return true;