2 files changed, 55 insertions, 16 deletions

diff --git a/src/ui/widget/page-sizer.cpp b/src/ui/widget/page-sizer.cpp
index 7427ad4e2..06d54b682 100644
--- a/src/ui/widget/page-sizer.cpp
+++ b/src/ui/widget/page-sizer.cpp
@@ -219,6 +219,7 @@ PageSizer::PageSizer(Registry & _wr)
       _dimensionUnits( _("U_nits:"), "units", _wr ),
       _dimensionWidth( _("_Width:"), _("Width of paper"), "width", _dimensionUnits, _wr ),
       _dimensionHeight( _("_Height:"), _("Height of paper"), "height", _dimensionUnits, _wr ),
+      _marginLock( _("L_ock"), _("Lock margins"), "lock-margins", _wr ),
       _marginTop( _("T_op margin:"), _("Top margin"), "fit-margin-top", _wr ),
       _marginLeft( _("L_eft:"), _("Left margin"), "fit-margin-left", _wr),
       _marginRight( _("Ri_ght:"), _("Right margin"), "fit-margin-right", _wr),
@@ -376,27 +377,33 @@ PageSizer::PageSizer(Registry & _wr)
     _marginTop.set_halign(Gtk::ALIGN_CENTER);
     _marginTop.set_hexpand();
     _marginTop.set_vexpand();
-    _marginTable.attach(_marginTop,     0, 0, 2, 1);
+    
+    _marginTable.attach(_marginTop,     0, 0, 3, 1);
 
-    _marginLeft.set_halign(Gtk::ALIGN_START);
+    _marginLeft.set_halign(Gtk::ALIGN_CENTER);
     _marginLeft.set_hexpand();
     _marginLeft.set_vexpand();
     _marginTable.attach(_marginLeft,    0, 1, 1, 1);
-
-    _marginRight.set_halign(Gtk::ALIGN_END);
+    
+    _marginLock.set_halign(Gtk::ALIGN_CENTER);
+    _marginLock.set_hexpand();
+    _marginLock.set_vexpand();
+    _marginTable.attach(_marginLock,    1, 1, 1, 1);
+    
+    _marginRight.set_halign(Gtk::ALIGN_CENTER);
     _marginRight.set_hexpand();
     _marginRight.set_vexpand();
-    _marginTable.attach(_marginRight,   1, 1, 1, 1);
-
+    _marginTable.attach(_marginRight,   2, 1, 1, 1);
+    
     _marginBottom.set_halign(Gtk::ALIGN_CENTER);
     _marginBottom.set_hexpand();
     _marginBottom.set_vexpand();
-    _marginTable.attach(_marginBottom,  0, 2, 2, 1);
+    _marginTable.attach(_marginBottom,  0, 2, 3, 1);
 
     _fitPageButton.set_halign(Gtk::ALIGN_CENTER);
     _fitPageButton.set_hexpand();
     _fitPageButton.set_vexpand();
-    _marginTable.attach(_fitPageButton, 0, 3, 2, 1);
+    _marginTable.attach(_fitPageButton, 0, 3, 3, 1);
     
     _fitPageButton.set_use_underline();
     _fitPageButton.set_label(_("_Resize page to drawing or selection (Ctrl+Shift+R)"));
@@ -474,6 +481,10 @@ PageSizer::init ()
     _changedvy_connection = _viewboxY.signal_value_changed().connect (sigc::mem_fun (*this, &PageSizer::on_viewbox_changed));
     _changedvw_connection = _viewboxW.signal_value_changed().connect (sigc::mem_fun (*this, &PageSizer::on_viewbox_changed));
     _changedvh_connection = _viewboxH.signal_value_changed().connect (sigc::mem_fun (*this, &PageSizer::on_viewbox_changed));
+    _changedmt_connection = _marginTop.signal_value_changed().connect (sigc::bind<RegisteredScalar*>(sigc::mem_fun (*this, &PageSizer::on_margin_changed), &_marginTop));
+    _changedmb_connection = _marginBottom.signal_value_changed().connect (sigc::bind<RegisteredScalar*>(sigc::mem_fun (*this, &PageSizer::on_margin_changed), &_marginBottom));
+    _changedml_connection = _marginLeft.signal_value_changed().connect (sigc::bind<RegisteredScalar*>(sigc::mem_fun (*this, &PageSizer::on_margin_changed), &_marginLeft));
+    _changedmr_connection = _marginRight.signal_value_changed().connect (sigc::bind<RegisteredScalar*>(sigc::mem_fun (*this, &PageSizer::on_margin_changed), &_marginRight));
     show_all_children();
 }
 
@@ -892,6 +903,24 @@ PageSizer::on_viewbox_changed()
     }
 }
 
+/**
+ * Callback for viewbox widgets
+ */
+void
+PageSizer::on_margin_changed(RegisteredScalar* widg)
+{
+    double value = widg->getValue(); 
+    if (_widgetRegistry->isUpdating()) return;
+    if (_marginLock.get_active() && !_marginLocked) {
+        _marginLocked = true;
+        _marginLeft.setValue(value);
+        _marginRight.setValue(value);
+        _marginTop.setValue(value);
+        _marginBottom.setValue(value);
+        _marginLocked = false;
+    }
+}
+
 } // namespace Widget
 } // namespace UI
 } // namespace Inkscape
diff --git a/src/ui/widget/page-sizer.h b/src/ui/widget/page-sizer.h
index 329ecfc6d..7cf8bacfd 100644
--- a/src/ui/widget/page-sizer.h
+++ b/src/ui/widget/page-sizer.h
@@ -161,7 +161,11 @@ public:
      * of the ui widgets to match the xml).
      */
     void updateFitMarginsUI(Inkscape::XML::Node *nv_repr);
- 
+    
+    /**
+     * Updates the margin widgets. If lock widget is active
+     */
+    void on_margin_changed(RegisteredScalar* widg);
     /**
      * Updates the scale widgets. (Just changes the values of the ui widgets.)
      */
@@ -225,13 +229,15 @@ protected:
     //### Fit Page options
     Gtk::Expander        _fitPageMarginExpander;
 
-    Gtk::Grid            _marginTable;
-    RegisteredScalar     _marginTop;
-    RegisteredScalar     _marginLeft;
-    RegisteredScalar     _marginRight;
-    RegisteredScalar     _marginBottom;
-    Gtk::Button          _fitPageButton;
-    bool                 _lockMarginUpdate;
+    Gtk::Grid             _marginTable;
+    RegisteredCheckButton _marginLock;
+    RegisteredScalar      _marginTop;
+    RegisteredScalar      _marginLeft;
+    RegisteredScalar      _marginRight;
+    RegisteredScalar      _marginBottom;
+    Gtk::Button           _fitPageButton;
+    bool                  _lockMarginUpdate;
+    bool                  _marginLocked;
 
     // Document scale
     Gtk::Frame           _scaleFrame;
@@ -265,6 +271,10 @@ protected:
     sigc::connection    _changedvy_connection;
     sigc::connection    _changedvw_connection;
     sigc::connection    _changedvh_connection;
+    sigc::connection    _changedmt_connection;
+    sigc::connection    _changedmb_connection;
+    sigc::connection    _changedml_connection;
+    sigc::connection    _changedmr_connection;
 
     Registry            *_widgetRegistry;