Fix #3810 X/Y Property Update on Locked View

- fixes x/y update when position locked for simple
  Views and ProjectionGroups.

src/Mod/TechDraw/App/DrawProjGroup.cpp

@@ -85,7 +85,6 @@ DrawProjGroup::~DrawProjGroup()
 {
 }
 
-
 void DrawProjGroup::onChanged(const App::Property* prop)
 {
     //TODO: For some reason, when the projection type is changed, the isometric views show change appropriately, but the orthographic ones don't... Or vice-versa.  WF: why would you change from 1st to 3rd in mid drawing?
@@ -136,7 +135,7 @@ void DrawProjGroup::onChanged(const App::Property* prop)
         }
 
     }
-        
+
     TechDraw::DrawViewCollection::onChanged(prop);
 }
 

src/Mod/TechDraw/App/DrawProjGroupItem.cpp

@@ -29,8 +29,10 @@
 #include <gp_Ax2.hxx>
 #include <gp_Ax3.hxx>
 #include <gp_Trsf.hxx>
+
+#include <App/Application.h>
+#include <App/DocumentObject.h>
 #include <Base/Console.h>
-#include <Base/Writer.h>
 
 #include "GeometryObject.h"
 #include "DrawUtil.h"
@@ -72,6 +74,10 @@ DrawProjGroupItem::DrawProjGroupItem(void)
     ScaleType.setStatus(App::Property::ReadOnly,true);
 }
 
+DrawProjGroupItem::~DrawProjGroupItem()
+{
+}
+
 short DrawProjGroupItem::mustExecute() const
 {
     short result = 0;
@@ -91,11 +97,16 @@ short DrawProjGroupItem::mustExecute() const
 void DrawProjGroupItem::onChanged(const App::Property *prop)
 {
     TechDraw::DrawViewPart::onChanged(prop);
-
 }
 
-DrawProjGroupItem::~DrawProjGroupItem()
+bool DrawProjGroupItem::isLocked(void) const
 {
+    bool isLocked = DrawView::isLocked();
+    DrawProjGroup* parent = getPGroup();
+    if (parent != nullptr) {
+        isLocked = isLocked || parent->LockPosition.getValue();
+    }
+    return isLocked;
 }
 
 App::DocumentObjectExecReturn *DrawProjGroupItem::execute(void)
@@ -234,7 +245,6 @@ double DrawProjGroupItem::getScale(void) const
     return result;
 }
 
-
 void DrawProjGroupItem::unsetupObject()
 {
     if (getPGroup() != nullptr) {

src/Mod/TechDraw/App/DrawProjGroupItem.h

@@ -83,6 +83,7 @@ class TechDrawExport DrawProjGroupItem : public TechDraw::DrawViewPart
 
 protected:
     void onChanged(const App::Property* prop) override;
+    virtual bool isLocked(void) const override;
 
 private:
     static const char* TypeEnums[];

src/Mod/TechDraw/App/DrawView.cpp

@@ -72,10 +72,9 @@ DrawView::DrawView(void):
     mouseMove(false)
 {
     static const char *group = "Base";
-
-    ADD_PROPERTY_TYPE(X ,(0),group,App::Prop_None,"X position of the view on the page in modelling units (mm)");
-    ADD_PROPERTY_TYPE(Y ,(0),group,App::Prop_None,"Y position of the view on the page in modelling units (mm)");
-    ADD_PROPERTY_TYPE(LockPosition ,(false),group,App::Prop_None,"Prevent View from moving in Gui");
+    ADD_PROPERTY_TYPE(X ,(0),group,App::Prop_None,"X position of the view on the page in internal units (mm)");
+    ADD_PROPERTY_TYPE(Y ,(0),group,App::Prop_None,"Y position of the view on the page in internal units (mm)");
+    ADD_PROPERTY_TYPE(LockPosition ,(false),group,App::Prop_None,"Lock View position to parent Page or Group");
     ADD_PROPERTY_TYPE(Rotation ,(0),group,App::Prop_None,"Rotation of the view on the page in degrees counterclockwise");
 
     ScaleType.setEnums(ScaleTypeEnums);
@@ -92,8 +91,9 @@ DrawView::~DrawView()
 
 App::DocumentObjectExecReturn *DrawView::execute(void)
 {
+    handleXYLock();
     requestPaint();
-    return App::DocumentObject::StdReturn;                //DO::execute returns 0
+    return App::DocumentObject::execute();
 }
 
 void DrawView::checkScale(void)
@@ -139,19 +139,54 @@ void DrawView::onChanged(const App::Property* prop)
                     }
                 }
             }
+        } else if (prop == &LockPosition) {
+            handleXYLock();
         }
     }
     App::DocumentObject::onChanged(prop);
 }
 
+bool DrawView::isLocked(void) const
+{
+    return LockPosition.getValue();
+}
+
+//override this for View inside a group (ex DPGI in DPG)
+void DrawView::handleXYLock(void) 
+{
+    if (isLocked()) {
+        if (!X.testStatus(App::Property::ReadOnly)) {
+            X.setStatus(App::Property::ReadOnly,true);
+            App::GetApplication().signalChangePropertyEditor(X);
+            X.purgeTouched();
+        }
+        Y.setStatus(App::Property::ReadOnly,true);
+        App::GetApplication().signalChangePropertyEditor(Y);
+        Y.purgeTouched();
+        requestPaint();
+    } else {
+        if (X.testStatus(App::Property::ReadOnly)) {
+            X.setStatus(App::Property::ReadOnly,false);
+            App::GetApplication().signalChangePropertyEditor(X);
+            X.purgeTouched();
+        }
+        Y.setStatus(App::Property::ReadOnly,false);
+        App::GetApplication().signalChangePropertyEditor(Y);
+        Y.purgeTouched();
+        requestPaint();
+    }
+}
+
 short DrawView::mustExecute() const
 {
     short result = 0;
     if (!isRestoring()) {
         result  =  (Scale.isTouched()  ||
-                    ScaleType.isTouched() ||
-                    X.isTouched() ||
-                    Y.isTouched() );
+                    ScaleType.isTouched() );
+        if (!isLocked()) {
+            result = result || X.isTouched() ||
+                     Y.isTouched() ;
+        }
     }
     if ((bool) result) {
         return result;
@@ -168,6 +203,7 @@ QRectF DrawView::getRect() const
 
 void DrawView::onDocumentRestored()
 {
+    handleXYLock();
     DrawView::execute();
 }
 
@@ -251,8 +287,10 @@ bool DrawView::checkFit(TechDraw::DrawPage* p) const
 
 void DrawView::setPosition(double x, double y)
 {
-    X.setValue(x);
-    Y.setValue(y);
+    if (!isLocked()) {
+        X.setValue(x);
+        Y.setValue(y);
+    }
 }
 
 //TODO: getScale is no longer needed and could revert to Scale.getValue

src/Mod/TechDraw/App/DrawView.h

@@ -87,9 +87,11 @@ class TechDrawExport DrawView : public App::DocumentObject
     virtual double getScale(void) const;
     void checkScale(void);
     void requestPaint(void);
+    virtual void handleXYLock(void);
+    virtual bool isLocked(void) const;
 
 protected:
-    void onChanged(const App::Property* prop) override;
+    virtual void onChanged(const App::Property* prop) override;
     std::string pageFeatName;
     bool autoPos;
     bool mouseMove;

src/Mod/TechDraw/App/DrawViewCollection.cpp

@@ -27,6 +27,7 @@
 #endif
 
 #include <App/Document.h>
+#include <App/DocumentObject.h>
 
 #include <Base/Console.h>
 #include <Base/Exception.h>
@@ -45,15 +46,40 @@ PROPERTY_SOURCE(TechDraw::DrawViewCollection, TechDraw::DrawView)
 DrawViewCollection::DrawViewCollection()
 {
     nowUnsetting = false;
-    static const char *group = "Drawing view";
-    ADD_PROPERTY_TYPE(Views     ,(0), group, App::Prop_None,"Attached Views");
+    static const char *group = "Collection";
+    ADD_PROPERTY_TYPE(Views     ,(0), group, App::Prop_None,"Collection Views");
     Views.setScope(App::LinkScope::Global);
 }
 
 DrawViewCollection::~DrawViewCollection()
 {
 }
 
+void DrawViewCollection::onChanged(const App::Property* prop)
+{
+    TechDraw::DrawView::onChanged(prop);
+}
+
+short DrawViewCollection::mustExecute() const
+{
+    if (Views.isTouched()) {
+        return 1;
+    } else {
+        return TechDraw::DrawView::mustExecute();
+    }
+}
+
+App::DocumentObjectExecReturn *DrawViewCollection::execute(void)
+{
+    if (!keepUpdated()) {
+        return App::DocumentObject::StdReturn;
+    }
+
+    lockChildren();
+
+    return DrawView::execute();
+}
+
 int DrawViewCollection::addView(DrawView *view)
 {
     // Add the new view to the collection
@@ -106,15 +132,6 @@ void DrawViewCollection::rebuildViewList()
     Views.setValues(newViews);
 }
 
-short DrawViewCollection::mustExecute() const
-{
-    if (Views.isTouched()) {
-        return 1;
-    } else {
-        return TechDraw::DrawView::mustExecute();
-    }
-}
-
 int DrawViewCollection::countChildren()
 {
     //Count the children recursively if needed
@@ -138,9 +155,15 @@ void DrawViewCollection::onDocumentRestored()
     DrawView::execute();
 }
 
-void DrawViewCollection::onChanged(const App::Property* prop)
+void DrawViewCollection::lockChildren(void) 
 {
-    TechDraw::DrawView::onChanged(prop);
+    for (auto& v:Views.getValues()) {
+        TechDraw::DrawView *view = dynamic_cast<TechDraw::DrawView *>(v);
+        if (!view) {
+            throw Base::ValueError("DrawViewCollection::lockChildren bad View\n");
+        }
+        view->handleXYLock();
+    }
 }
 
 void DrawViewCollection::unsetupObject()
@@ -162,17 +185,6 @@ void DrawViewCollection::unsetupObject()
     Views.setValues(emptyViews);
 }
 
-
-App::DocumentObjectExecReturn *DrawViewCollection::execute(void)
-{
-    if (!keepUpdated()) {
-        return App::DocumentObject::StdReturn;
-    }
-
-    return DrawView::execute();
-}
-
-
 QRectF DrawViewCollection::getRect() const
 {
     QRectF result;

src/Mod/TechDraw/App/DrawViewCollection.h

@@ -52,6 +52,7 @@ class TechDrawExport DrawViewCollection : public DrawView
     bool isUnsetting(void) { return nowUnsetting; }
 
     int countChildren();
+    void lockChildren(void);
 
     virtual void onDocumentRestored();
     virtual App::DocumentObjectExecReturn *execute(void);