merge from trunk (r12181)

(bzr r11668.1.53)

10 files changed, 243 insertions, 88 deletions

diff --git a/src/ui/widget/color-picker.cpp b/src/ui/widget/color-picker.cpp
index 31fb3096c..5585f2db4 100644
--- a/src/ui/widget/color-picker.cpp
+++ b/src/ui/widget/color-picker.cpp
@@ -56,8 +56,14 @@ void ColorPicker::setupDialog(const Glib::ustring &title)
     _colorSelectorDialog.set_title (title);
     _colorSelectorDialog.set_border_width (4);
     _colorSelector = SP_COLOR_SELECTOR(sp_color_selector_new(SP_TYPE_COLOR_NOTEBOOK));
+
+#if WITH_GTKMM_3_0
+    _colorSelectorDialog.get_content_area()->pack_start (
+              *Glib::wrap(&_colorSelector->vbox), true, true, 0);
+#else
     _colorSelectorDialog.get_vbox()->pack_start (
               *Glib::wrap(&_colorSelector->vbox), true, true, 0);
+#endif
 
     g_signal_connect(G_OBJECT(_colorSelector), "dragged",
                          G_CALLBACK(sp_color_picker_color_mod), (void *)this);
diff --git a/src/ui/widget/dock-item.cpp b/src/ui/widget/dock-item.cpp
index b9cc50845..8d960ddc3 100644
--- a/src/ui/widget/dock-item.cpp
+++ b/src/ui/widget/dock-item.cpp
@@ -18,6 +18,7 @@
 
 #include <gtkmm/icontheme.h>
 #include <gtkmm/stockitem.h>
+#include <glibmm/exceptionhandler.h>
 
 namespace Inkscape {
 namespace UI {
diff --git a/src/ui/widget/dock.cpp b/src/ui/widget/dock.cpp
index a38a93fb1..2bfc7e0df 100644
--- a/src/ui/widget/dock.cpp
+++ b/src/ui/widget/dock.cpp
@@ -54,6 +54,17 @@ Dock::Dock(Gtk::Orientation orientation)
 {
     gdl_dock_bar_set_orientation(_gdl_dock_bar, static_cast<GtkOrientation>(orientation));
 
+#if WITH_GTKMM_3_0
+    switch(orientation) {
+        case Gtk::ORIENTATION_VERTICAL:
+            _dock_box = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL));
+            break;
+        case Gtk::ORIENTATION_HORIZONTAL:
+            _dock_box = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_VERTICAL));
+    }
+    
+    _paned = Gtk::manage(new Gtk::Paned(orientation));
+#else
     switch (orientation) {
         case Gtk::ORIENTATION_VERTICAL:
             _dock_box = Gtk::manage(new Gtk::HBox());
@@ -63,6 +74,7 @@ Dock::Dock(Gtk::Orientation orientation)
             _dock_box = Gtk::manage(new Gtk::VBox());
             _paned = Gtk::manage(new Gtk::HPaned());
     }
+#endif
 
     _scrolled_window->add(*_dock_box);
     _scrolled_window->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
diff --git a/src/ui/widget/preferences-widget.cpp b/src/ui/widget/preferences-widget.cpp
index e5b062ec9..314bf75bf 100644
--- a/src/ui/widget/preferences-widget.cpp
+++ b/src/ui/widget/preferences-widget.cpp
@@ -21,7 +21,9 @@
 #include <gtkmm/box.h>
 #include <gtkmm/frame.h>
 #include <gtkmm/alignment.h>
+#include <gtkmm/scale.h>
 #include <gtkmm/stock.h>
+#include <gtkmm/table.h>
 
 #include "preferences.h"
 #include "ui/widget/preferences-widget.h"
@@ -49,90 +51,139 @@ namespace Widget {
 
 DialogPage::DialogPage()
 {
-    this->set_border_width(12);
-    this->set_col_spacings(12);
-    this->set_row_spacings(6);
+    set_border_width(12);
+
+#if WITH_GTKMM_3_0
+    set_orientation(Gtk::ORIENTATION_VERTICAL);
+    set_column_spacing(12);
+    set_row_spacing(6);
+#else
+    set_col_spacings(12);
+    set_row_spacings(6);
+#endif
 }
 
-void DialogPage::add_line(bool indent, Glib::ustring const &label, Gtk::Widget &widget, Glib::ustring const &suffix, const Glib::ustring &tip, bool expand_widget, Gtk::Widget *other_widget)
+/**
+ * Add a widget to the bottom row of the dialog page
+ *
+ * \param[in] indent         Whether the widget should be indented by one column
+ * \param[in] label          The label text for the widget
+ * \param[in] widget         The widget to add to the page
+ * \param[in] suffix         Text for an optional label at the right of the widget
+ * \param[in] tip            Tooltip text for the widget
+ * \param[in] expand_widget  Whether to expand the widget horizontally
+ * \param[in] other_widget   An optional additional widget to display at the right of the first one
+ */
+void DialogPage::add_line(bool                 indent,
+                          Glib::ustring const &label,
+                          Gtk::Widget         &widget,
+                          Glib::ustring const &suffix,
+                          const Glib::ustring &tip,
+                          bool                 expand_widget,
+                          Gtk::Widget         *other_widget)
 {
-    int start_col;
-    int row = this->property_n_rows();
-    Gtk::Widget* w;
-    if (expand_widget)
-    {
-        w = &widget;
-    }
-    else
-    {
-        Gtk::HBox* hb = Gtk::manage(new Gtk::HBox());
-        hb->set_spacing(12);
-        hb->pack_start(widget,false,false);
-        if (other_widget) {
-            hb->pack_start(*other_widget,false,false);
-        }
-
-        w = (Gtk::Widget*) hb;
-    }
+    if (tip != "")
+        widget.set_tooltip_text (tip);
+    
+    Gtk::Alignment* label_alignment = Gtk::manage(new Gtk::Alignment());
+    
+    Gtk::HBox* hb = Gtk::manage(new Gtk::HBox());
+    hb->set_spacing(12);
+    hb->pack_start(widget, expand_widget, expand_widget);
+        
+    // Pack an additional widget into a box with the widget if desired 
+    if (other_widget)
+        hb->pack_start(*other_widget, expand_widget, expand_widget);
+    
+    // Pack the widget into an alignment container so that it can
+    // be indented if desired
+    Gtk::Alignment* w_alignment = Gtk::manage(new Gtk::Alignment());
+    w_alignment->add(*hb);
+
+#if WITH_GTKMM_3_0
+    w_alignment->set_valign(Gtk::ALIGN_CENTER);
+#else
+    guint row = property_n_rows();
+#endif
+    
+    // Add a label in the first column if provided
     if (label != "")
     {
-        Gtk::Label* label_widget;
-        label_widget = Gtk::manage(new Gtk::Label(label , Gtk::ALIGN_START , Gtk::ALIGN_CENTER, true));
+        Gtk::Label* label_widget = Gtk::manage(new Gtk::Label(label, Gtk::ALIGN_START,
+                                                              Gtk::ALIGN_CENTER, true));
         label_widget->set_mnemonic_widget(widget);
+        
+        // Pack the label into an alignment container so that we can indent it
+        // if necessary
+        label_alignment->add(*label_widget);
+ 
         if (indent)
-        {
-            Gtk::Alignment* alignment = Gtk::manage(new Gtk::Alignment());
-            alignment->set_padding(0, 0, 12, 0);
-            alignment->add(*label_widget);
-            this->attach(*alignment , 0, 1, row, row + 1, Gtk::FILL, Gtk::AttachOptions(), 0, 0);
-        }
-        else
-            this->attach(*label_widget , 0, 1, row, row + 1, Gtk::FILL, Gtk::AttachOptions(), 0, 0);
-        start_col = 1;
+            label_alignment->set_padding(0, 0, 12, 0);
+
+#if WITH_GTKMM_3_0
+        label_alignment->set_valign(Gtk::ALIGN_CENTER);
+        add(*label_alignment);
+        attach_next_to(*w_alignment, *label_alignment, Gtk::POS_RIGHT, 1, 1);
+#else
+        attach(*label_alignment, 0, 1, row, row + 1, Gtk::FILL, Gtk::AttachOptions(), 0, 0);
+#endif
     }
-    else
-        start_col = 0;
 
-    if (start_col == 0 && indent) //indent this widget
+    // Now add the widget to the bottom of the dialog
+#if WITH_GTKMM_3_0
+    if (label == "")
     {
-        Gtk::Alignment* alignment = Gtk::manage(new Gtk::Alignment());
-        alignment->set_padding(0, 0, 12, 0);
-        alignment->add(*w);
-        this->attach(*alignment, start_col, 2, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::AttachOptions(),  0, 0);
-    }
-    else
-    {
-        this->attach(*w, start_col, 2, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::AttachOptions(),  0, 0);
-    }
+        if (indent)
+            w_alignment->set_padding(0, 0, 12, 0);
+
+        add(*w_alignment);
+        
+        GValue width = G_VALUE_INIT;
+        g_value_init(&width, G_TYPE_INT);
+        g_value_set_int(&width, 2);
+        gtk_container_child_set_property(GTK_CONTAINER(gobj()), GTK_WIDGET(w_alignment->gobj()), "width", &width);
+    }
+#else
+    // The widget should span two columns if there is no label
+    int w_col_span = 1;
+    if (label == "")
+        w_col_span = 2;
+    
+    attach(*w_alignment, 2 - w_col_span, 2, row, row + 1,
+            Gtk::FILL | Gtk::EXPAND,
+            Gtk::AttachOptions(),
+            0, 0);
+#endif
 
+    // Add a label on the right of the widget if desired
     if (suffix != "")
     {
         Gtk::Label* suffix_widget = Gtk::manage(new Gtk::Label(suffix , Gtk::ALIGN_START , Gtk::ALIGN_CENTER, true));
-        if (expand_widget)
-            this->attach(*suffix_widget, 2, 3, row, row + 1, Gtk::FILL,  Gtk::AttachOptions(), 0, 0);
-        else
-            ((Gtk::HBox*)w)->pack_start(*suffix_widget,false,false);
-    }
-
-    if (tip != "")
-    {
-        widget.set_tooltip_text (tip);
+        hb->pack_start(*suffix_widget,false,false);
     }
 
 }
 
 void DialogPage::add_group_header(Glib::ustring name)
 {
-    int row = this->property_n_rows();
     if (name != "")
     {
         Gtk::Label* label_widget = Gtk::manage(new Gtk::Label(Glib::ustring(/*"<span size='large'>*/"<b>") + name +
                                                Glib::ustring("</b>"/*</span>"*/) , Gtk::ALIGN_START , Gtk::ALIGN_CENTER, true));
         
         label_widget->set_use_markup(true);
-        this->attach(*label_widget , 0, 4, row, row + 1, Gtk::FILL, Gtk::AttachOptions(), 0, 0);
+        
+#if WITH_GTKMM_3_0
+        label_widget->set_valign(Gtk::ALIGN_CENTER);
+        add(*label_widget);
+//        if (row != 1)
+  //          set_row_spacing(row - 1, 18);
+#else
+        int row = property_n_rows();
+        attach(*label_widget , 0, 4, row, row + 1, Gtk::FILL, Gtk::AttachOptions(), 0, 0);
         if (row != 1)
-            this->set_row_spacing(row - 1, 18);
+            set_row_spacing(row - 1, 18);
+#endif
     }
 }
 
@@ -444,8 +495,8 @@ ZoomCorrRulerSlider::on_slider_value_changed()
     {
         freeze = true;
         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
-        prefs->setDouble("/options/zoomcorrection/value", _slider.get_value() / 100.0);
-        _sb.set_value(_slider.get_value());
+        prefs->setDouble("/options/zoomcorrection/value", _slider->get_value() / 100.0);
+        _sb.set_value(_slider->get_value());
         _ruler.queue_draw();
         freeze = false;
     }
@@ -459,7 +510,7 @@ ZoomCorrRulerSlider::on_spinbutton_value_changed()
         freeze = true;
         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
         prefs->setDouble("/options/zoomcorrection/value", _sb.get_value() / 100.0);
-        _slider.set_value(_sb.get_value());
+        _slider->set_value(_sb.get_value());
         _ruler.queue_draw();
         freeze = false;
     }
@@ -498,13 +549,19 @@ ZoomCorrRulerSlider::init(int ruler_width, int ruler_height, double lower, doubl
 
     _ruler.set_size(ruler_width, ruler_height);
 
-    _slider.set_size_request(_ruler.width(), -1);
-    _slider.set_range (lower, upper);
-    _slider.set_increments (step_increment, page_increment);
-    _slider.set_value (value);
-    _slider.set_digits(2);
+#if WITH_GTKMM_3_0
+    _slider = Gtk::manage(new Gtk::Scale(Gtk::ORIENTATION_HORIZONTAL));
+#else
+    _slider = Gtk::manage(new Gtk::HScale());
+#endif
+
+    _slider->set_size_request(_ruler.width(), -1);
+    _slider->set_range (lower, upper);
+    _slider->set_increments (step_increment, page_increment);
+    _slider->set_value (value);
+    _slider->set_digits(2);
 
-    _slider.signal_value_changed().connect(sigc::mem_fun(*this, &ZoomCorrRulerSlider::on_slider_value_changed));
+    _slider->signal_value_changed().connect(sigc::mem_fun(*this, &ZoomCorrRulerSlider::on_slider_value_changed));
     _sb.signal_value_changed().connect(sigc::mem_fun(*this, &ZoomCorrRulerSlider::on_spinbutton_value_changed));
     _unit.signal_changed().connect(sigc::mem_fun(*this, &ZoomCorrRulerSlider::on_unit_changed));
 
@@ -518,18 +575,28 @@ ZoomCorrRulerSlider::init(int ruler_width, int ruler_height, double lower, doubl
     _unit.set_data("sensitive", GINT_TO_POINTER(1));
     _unit.setUnit(prefs->getString("/options/zoomcorrection/unit"));
 
-    Gtk::Table *table = Gtk::manage(new Gtk::Table());
     Gtk::Alignment *alignment1 = Gtk::manage(new Gtk::Alignment(0.5,1,0,0));
     Gtk::Alignment *alignment2 = Gtk::manage(new Gtk::Alignment(0.5,1,0,0));
     alignment1->add(_sb);
     alignment2->add(_unit);
 
-    table->attach(_slider,     0, 1, 0, 1);
+#if WITH_GTKMM_3_0
+    Gtk::Grid *table = Gtk::manage(new Gtk::Grid());
+    table->attach(*_slider,    0, 0, 1, 1);
+    alignment1->set_halign(Gtk::ALIGN_CENTER);
+    table->attach(*alignment1, 1, 0, 1, 1);
+    table->attach(_ruler,      0, 1, 1, 1);
+    alignment2->set_halign(Gtk::ALIGN_CENTER);
+    table->attach(*alignment2, 1, 1, 1, 1);
+#else
+    Gtk::Table *table = Gtk::manage(new Gtk::Table());
+    table->attach(*_slider,    0, 1, 0, 1);
     table->attach(*alignment1, 1, 2, 0, 1, static_cast<Gtk::AttachOptions>(0));
     table->attach(_ruler,      0, 1, 1, 2);
     table->attach(*alignment2, 1, 2, 1, 2, static_cast<Gtk::AttachOptions>(0));
+#endif
 
-    this->pack_start(*table, Gtk::PACK_EXPAND_WIDGET);
+    pack_start(*table, Gtk::PACK_SHRINK);
 }
 
 void
@@ -539,8 +606,8 @@ PrefSlider::on_slider_value_changed()
     {
         freeze = true;
         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
-        prefs->setDouble(_prefs_path, _slider.get_value());
-        _sb.set_value(_slider.get_value());
+        prefs->setDouble(_prefs_path, _slider->get_value());
+        _sb.set_value(_slider->get_value());
         freeze = false;
     }
 }
@@ -553,7 +620,7 @@ PrefSlider::on_spinbutton_value_changed()
         freeze = true;
         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
         prefs->setDouble(_prefs_path, _sb.get_value());
-        _slider.set_value(_sb.get_value());
+        _slider->set_value(_sb.get_value());
         freeze = false;
     }
 }
@@ -574,11 +641,17 @@ PrefSlider::init(Glib::ustring const &prefs_path,
 
     freeze = false;
 
-    _slider.set_range (lower, upper);
-    _slider.set_increments (step_increment, page_increment);
-    _slider.set_value (value);
-    _slider.set_digits(digits);
-    _slider.signal_value_changed().connect(sigc::mem_fun(*this, &PrefSlider::on_slider_value_changed));
+#if WITH_GTKMM_3_0
+    _slider = Gtk::manage(new Gtk::Scale(Gtk::ORIENTATION_HORIZONTAL));
+#else
+    _slider = Gtk::manage(new Gtk::HScale());
+#endif
+
+    _slider->set_range (lower, upper);
+    _slider->set_increments (step_increment, page_increment);
+    _slider->set_value (value);
+    _slider->set_digits(digits);
+    _slider->signal_value_changed().connect(sigc::mem_fun(*this, &PrefSlider::on_slider_value_changed));
 
     _sb.signal_value_changed().connect(sigc::mem_fun(*this, &PrefSlider::on_spinbutton_value_changed));
     _sb.set_range (lower, upper);
@@ -586,12 +659,20 @@ PrefSlider::init(Glib::ustring const &prefs_path,
     _sb.set_value (value);
     _sb.set_digits(digits);
 
-    Gtk::Table *table = Gtk::manage(new Gtk::Table());
     Gtk::Alignment *alignment1 = Gtk::manage(new Gtk::Alignment(0.5,1,0,0));
     alignment1->add(_sb);
 
-    table->attach(_slider,     0, 1, 0, 1);
+#if WITH_GTKMM_3_0
+    Gtk::Grid *table = Gtk::manage(new Gtk::Grid());
+    _slider->set_hexpand();
+    table->attach(*_slider,    0, 0, 1, 1);
+    alignment1->set_halign(Gtk::ALIGN_CENTER);
+    table->attach(*alignment1, 1, 0, 1, 1);
+#else
+    Gtk::Table *table = Gtk::manage(new Gtk::Table());
+    table->attach(*_slider,    0, 1, 0, 1);
     table->attach(*alignment1, 1, 2, 0, 1, static_cast<Gtk::AttachOptions>(0));
+#endif
 
     this->pack_start(*table, Gtk::PACK_EXPAND_WIDGET);
 }
diff --git a/src/ui/widget/preferences-widget.h b/src/ui/widget/preferences-widget.h
index 646a8b2fa..e3968045d 100644
--- a/src/ui/widget/preferences-widget.h
+++ b/src/ui/widget/preferences-widget.h
@@ -25,14 +25,26 @@
 #include <gtkmm/radiobutton.h>
 #include <gtkmm/comboboxtext.h>
 #include <gtkmm/drawingarea.h>
-#include <gtkmm/scale.h>
+
+#if WITH_GTKMM_3_0
+#include <gtkmm/grid.h>
+#else
 #include <gtkmm/table.h>
+#endif
 
 #include "ui/widget/color-picker.h"
 #include "ui/widget/unit-menu.h"
 #include "ui/widget/spinbutton.h"
 #include "ui/widget/scalar-unit.h"
 
+namespace Gtk {
+#if WITH_GTKMM_3_0
+class Scale;
+#else
+class HScale;
+#endif
+}
+
 namespace Inkscape {
 namespace UI {
 namespace Widget {
@@ -137,7 +149,11 @@ private:
 
     Inkscape::UI::Widget::SpinButton _sb;
     UnitMenu        _unit;
-    Gtk::HScale     _slider;
+#if WITH_GTKMM_3_0
+    Gtk::Scale*      _slider;
+#else
+    Gtk::HScale*     _slider;
+#endif
     ZoomCorrRuler   _ruler;
     bool freeze; // used to block recursive updates of slider and spinbutton
 };
@@ -155,7 +171,13 @@ private:
 
     Glib::ustring _prefs_path;
     Inkscape::UI::Widget::SpinButton _sb;
-    Gtk::HScale     _slider;
+
+#if WITH_GTKMM_3_0
+    Gtk::Scale*     _slider;
+#else
+    Gtk::HScale*    _slider;
+#endif
+
     bool freeze; // used to block recursive updates of slider and spinbutton
 };
 
@@ -251,7 +273,11 @@ protected:
     void on_changed();
 };
 
+#if WITH_GTKMM_3_0
+class DialogPage : public Gtk::Grid
+#else
 class DialogPage : public Gtk::Table
+#endif
 {
 public:
     DialogPage();
diff --git a/src/ui/widget/scalar.cpp b/src/ui/widget/scalar.cpp
index 9bbcc80f9..fca8a7974 100644
--- a/src/ui/widget/scalar.cpp
+++ b/src/ui/widget/scalar.cpp
@@ -142,7 +142,7 @@ void Scalar::update()
 void Scalar::addSlider()
 {
 #if WITH_GTKMM_3_0
-    Gtk::HScale *scale = new Gtk::HScale(static_cast<SpinButton*>(_widget)->get_adjustment());
+    Gtk::Scale *scale = new Gtk::Scale(static_cast<SpinButton*>(_widget)->get_adjustment());
 #else
     Gtk::HScale *scale = new Gtk::HScale( * static_cast<SpinButton*>(_widget)->get_adjustment() );
 #endif
diff --git a/src/ui/widget/spin-slider.cpp b/src/ui/widget/spin-slider.cpp
index 323b1209c..facbf704c 100644
--- a/src/ui/widget/spin-slider.cpp
+++ b/src/ui/widget/spin-slider.cpp
@@ -116,11 +116,20 @@ Gtk::Adjustment& SpinSlider::get_adjustment()
     return _adjustment;
 }
 
+#if WITH_GTKMM_3_0
+const Gtk::Scale& SpinSlider::get_scale() const
+#else
 const Gtk::HScale& SpinSlider::get_scale() const
+#endif
 {
     return _scale;
 }
+
+#if WITH_GTKMM_3_0
+Gtk::Scale& SpinSlider::get_scale()
+#else
 Gtk::HScale& SpinSlider::get_scale()
+#endif
 {
     return _scale;
 }
diff --git a/src/ui/widget/spin-slider.h b/src/ui/widget/spin-slider.h
index f4a62107b..8a45299e5 100644
--- a/src/ui/widget/spin-slider.h
+++ b/src/ui/widget/spin-slider.h
@@ -41,13 +41,14 @@ public:
 #if WITH_GTKMM_3_0
     const Glib::RefPtr<Gtk::Adjustment> get_adjustment() const;
     Glib::RefPtr<Gtk::Adjustment> get_adjustment();
+    const Gtk::Scale& get_scale() const;
+    Gtk::Scale& get_scale();
 #else
     const Gtk::Adjustment& get_adjustment() const;
     Gtk::Adjustment& get_adjustment();
-#endif
-    
     const Gtk::HScale& get_scale() const;
     Gtk::HScale& get_scale();
+#endif
 
     const Inkscape::UI::Widget::SpinButton& get_spin_button() const;
     Inkscape::UI::Widget::SpinButton& get_spin_button();
@@ -57,10 +58,11 @@ public:
 private:
 #if WITH_GTKMM_3_0
     Glib::RefPtr<Gtk::Adjustment> _adjustment;
+    Gtk::Scale _scale;
 #else
     Gtk::Adjustment _adjustment;
-#endif
     Gtk::HScale _scale;
+#endif
     Inkscape::UI::Widget::SpinButton _spin;
 };
 
diff --git a/src/ui/widget/tolerance-slider.cpp b/src/ui/widget/tolerance-slider.cpp
index 16558f0ee..f92a08d0a 100644
--- a/src/ui/widget/tolerance-slider.cpp
+++ b/src/ui/widget/tolerance-slider.cpp
@@ -73,8 +73,15 @@ void ToleranceSlider::init (const Glib::ustring& label1, const Glib::ustring& la
     theLabel1->set_use_underline();
     theLabel1->set_alignment(0, 0.5);
     // align the label with the checkbox text above by indenting 22 px.
-    _hbox->pack_start(*theLabel1, Gtk::PACK_EXPAND_WIDGET, 22); 
+    _hbox->pack_start(*theLabel1, Gtk::PACK_EXPAND_WIDGET, 22);
+
+#if WITH_GTKMM_3_0
+    _hscale = manage(new Gtk::Scale(Gtk::ORIENTATION_HORIZONTAL));
+    _hscale->set_range(1.0, 51.0);
+#else 
     _hscale = manage (new Gtk::HScale (1.0, 51, 1.0));
+#endif
+
     theLabel1->set_mnemonic_widget (*_hscale);
     _hscale->set_draw_value (true);
     _hscale->set_value_pos (Gtk::POS_RIGHT);
diff --git a/src/ui/widget/tolerance-slider.h b/src/ui/widget/tolerance-slider.h
index d0b78e3c1..2184cd52b 100644
--- a/src/ui/widget/tolerance-slider.h
+++ b/src/ui/widget/tolerance-slider.h
@@ -13,7 +13,12 @@
 #include <gtkmm/radiobuttongroup.h>
 
 namespace Gtk {
-	class RadioButton;
+class RadioButton;
+#if WITH_GTKMM_3_0
+class Scale;
+#else
+class HScale;
+#endif
 }
 
 namespace Inkscape {
@@ -55,7 +60,13 @@ protected:
     void on_toggled();
     void update (double val);
     Gtk::HBox         *_hbox;
+
+#if WITH_GTKMM_3_0
+    Gtk::Scale        *_hscale;
+#else
     Gtk::HScale       *_hscale;
+#endif
+
     Gtk::RadioButtonGroup _radio_button_group;
     Gtk::RadioButton  *_button1;
     Gtk::RadioButton  *_button2;