reduce use of "execute" on cosmetic changes.

src/Mod/TechDraw/App/DrawPage.cpp

@@ -107,7 +107,6 @@ void DrawPage::onChanged(const App::Property* prop)
     } else if (prop == &Views) {
         if (!isRestoring()) {
             //TODO: reload if Views prop changes (ie adds/deletes)
-            //touch();
         }
     } else if(prop == &Scale) {
         // touch all views in the Page as they may be dependent on this scale
@@ -136,6 +135,8 @@ void DrawPage::onChanged(const App::Property* prop)
 
 App::DocumentObjectExecReturn *DrawPage::execute(void)
 {
+    //Page is just a property storage area? no real logic involved?
+    //all this does is trigger onChanged in this and ViewProviderPage
     Template.touch();
     Views.touch();
     return App::DocumentObject::StdReturn;

src/Mod/TechDraw/App/DrawView.cpp

@@ -129,7 +129,6 @@ short DrawView::mustExecute() const
     if (!isRestoring()) {
         result  =  (X.isTouched()  ||
                     Y.isTouched()  ||
-                    Rotation.isTouched()  ||
                     Scale.isTouched()  ||
                     ScaleType.isTouched() );
     }

src/Mod/TechDraw/App/DrawViewClip.cpp

@@ -76,8 +76,7 @@ void DrawViewClip::onChanged(const App::Property* prop)
 {
     if (prop == &Height ||
         prop == &Width  ||
-        prop == &ShowFrame ||
-        prop == &ShowLabels) {
+        prop == &Views) {
         if (!isRestoring()) {
             DrawViewClip::execute();
         }

src/Mod/TechDraw/App/DrawViewPart.cpp

@@ -225,22 +225,10 @@ short DrawViewPart::mustExecute() const
                     Source.isTouched()  ||
                     Scale.isTouched()  ||
                     ScaleType.isTouched()  ||
-                    Tolerance.isTouched());
-
-// don't have to execute DVP, but should update Gui
-//                    ShowHiddenLines.isTouched()  ||
-//                    ShowSmoothLines.isTouched()  ||
-//                    ShowSeamLines.isTouched()  ||
-//                    LineWidth.isTouched()  ||
-//                    HiddenWidth.isTouched()  ||
-//                    ShowCenters.isTouched()  ||
-//                    CenterScale.isTouched()  ||
-//                    ShowSectionLine.isTouched()  ||
-//                    HorizSectionLine.isTouched()  ||
-//                    ArrowUpSection.isTouched()  ||
-//                    SymbolSection.isTouched()  ||
-//                    HorizCenterLine.isTouched()  ||
-//                    VertCenterLine.isTouched());
+                    Tolerance.isTouched()  ||
+                    ShowHiddenLines.isTouched()  ||
+                    ShowSmoothLines.isTouched()  ||
+                    ShowSeamLines.isTouched() );
         }
 
     if (result) {
@@ -259,28 +247,16 @@ void DrawViewPart::onChanged(const App::Property* prop)
             prop == &XAxisDirection ||
             prop == &Source ||
             prop == &Scale ||
-            prop == &ScaleType) {
-//don't need to execute, but need to update Gui
-//            prop == &ShowHiddenLines ||
-//            prop == &ShowSmoothLines ||
-//            prop == &ShowSeamLines   ||
-//            prop == &LineWidth       ||
-//            prop == &HiddenWidth     ||
-//            prop == &ShowCenters     ||
-//            prop == &CenterScale     ||
-//            prop == &ShowSectionLine ||
-//            prop == &HorizSectionLine  ||
-//            prop == &ArrowUpSection  ||
-//            prop == &SymbolSection   ||
-//            prop == &HorizCenterLine ||
-//            prop == &VertCenterLine) {
+            prop == &ScaleType  ||
+            prop == &ShowHiddenLines ||
+            prop == &ShowSmoothLines ||
+            prop == &ShowSeamLines)
             try {
                 App::DocumentObjectExecReturn *ret = recompute();
                 delete ret;
             }
             catch (...) {
             }
-        }
     }
     DrawView::onChanged(prop);
 

src/Mod/TechDraw/App/DrawViewSection.cpp

@@ -115,10 +115,6 @@ short DrawViewSection::mustExecute() const
                    BaseView.isTouched()  ||
                    SectionNormal.isTouched() ||
                    SectionOrigin.isTouched() );
-
-//don't need to execute, but need to update Gui
-//                   ShowCutSurface.isTouched() ||
-//                   CutSurfaceColor.isTouched() );
     }
     if (result) {
         return result;