mega commit to remove gtk_object cruft, and much other stuff
[ardour.git] / gtk2_ardour / editor_rulers.cc
index 052cb01ddd41c4bb72059929dab4b41404b4e8f8..93af2a18be5ae0632471f857ca4641569b66c947 100644 (file)
@@ -56,27 +56,27 @@ Editor::initialize_rulers ()
        ruler_grabbed_widget = 0;
        
        _smpte_ruler = gtk_custom_hruler_new ();
-       smpte_ruler = wrap (_smpte_ruler);
+       smpte_ruler = Glib::wrap (_smpte_ruler);
        smpte_ruler->set_name ("SMPTERuler");
        smpte_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
        ruler_shown[ruler_metric_smpte] = true;
        
        _bbt_ruler = gtk_custom_hruler_new ();
-       bbt_ruler = wrap (_bbt_ruler);
+       bbt_ruler = Glib::wrap (_bbt_ruler);
        bbt_ruler->set_name ("BBTRuler");
        bbt_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
        ruler_shown[ruler_metric_bbt] = true;
 
        _frames_ruler = gtk_custom_hruler_new ();
-       frames_ruler = wrap (_frames_ruler);
+       frames_ruler = Glib::wrap (_frames_ruler);
        frames_ruler->set_name ("FramesRuler");
        frames_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 
        _minsec_ruler = gtk_custom_hruler_new ();
-       minsec_ruler = wrap (_minsec_ruler);
+       minsec_ruler = Glib::wrap (_minsec_ruler);
        minsec_ruler->set_name ("MinSecRuler");
        minsec_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
@@ -94,20 +94,20 @@ Editor::initialize_rulers ()
        frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 
-       smpte_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
-       bbt_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
-       frames_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
-       minsec_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
+       smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
+       bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
+       frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
+       minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 
-       smpte_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
-       bbt_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
-       frames_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
-       minsec_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
+       smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
+       bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
+       frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
+       minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
        
-       smpte_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
-       bbt_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
-       frames_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
-       minsec_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
+       smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
+       bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
+       frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
+       minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
        
        visible_timebars = 7; /* 4 here, 3 in time_canvas */
        ruler_pressed_button = 0;
@@ -127,13 +127,13 @@ Editor::ruler_button_press (GdkEventButton* ev)
        //Gtk::Main::grab_add (*minsec_ruler);
        Widget * grab_widget = 0;
 
-       if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()) grab_widget = smpte_ruler;
-       else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()) grab_widget = bbt_ruler;
-       else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()) grab_widget = frames_ruler;
-       else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()) grab_widget = minsec_ruler;
+       if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()->gobj()) grab_widget = smpte_ruler;
+       else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) grab_widget = bbt_ruler;
+       else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) grab_widget = frames_ruler;
+       else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) grab_widget = minsec_ruler;
 
        if (grab_widget) {
-               Gtk::Main::grab_add (*grab_widget);
+               grab_widget->add_modal_grab ();
                ruler_grabbed_widget = grab_widget;
        }
 
@@ -144,10 +144,10 @@ gint
 Editor::ruler_button_release (GdkEventButton* ev)
 {
        gint x,y;
-       GdkModifierType state;
+       Gdk::ModifierType state;
 
        /* need to use the correct x,y, the event lies */
-       time_canvas_event_box.get_window().get_pointer (x, y, state);
+       time_canvas_event_box.get_window()->get_pointer (x, y, state);
 
 
        ruler_pressed_button = 0;
@@ -189,7 +189,7 @@ Editor::ruler_button_release (GdkEventButton* ev)
 
 
        if (ruler_grabbed_widget) {
-               Gtk::Main::grab_remove (*ruler_grabbed_widget);
+               ruler_grabbed_widget->remove_modal_grab();
                ruler_grabbed_widget = 0;
        }
 
@@ -219,14 +219,14 @@ Editor::ruler_mouse_motion (GdkEventMotion* ev)
        double cx=0,cy=0;
 
        gint x,y;
-       GdkModifierType state;
+       Gdk::ModifierType state;
 
        /* need to use the correct x,y, the event lies */
-       time_canvas_event_box.get_window().get_pointer (x, y, state);
+       time_canvas_event_box.get_window()->get_pointer (x, y, state);
 
        
-       gtk_canvas_window_to_world (GTK_CANVAS(track_gtk_canvas), x, y, &wcx, &wcy);
-       gtk_canvas_w2c_d (GTK_CANVAS(track_gtk_canvas), wcx, wcy, &cx, &cy);
+       track_canvas.c2w (x, y, wcx, wcy);
+       track_canvas.w2c (wcx, wcy, cx, cy);
        
        jack_nframes_t where = leftmost_frame + pixel_to_frame (x);
 
@@ -308,13 +308,13 @@ Editor::popup_ruler_menu (jack_nframes_t where, ItemType t)
 
        switch (t) {
        case MarkerBarItem:
-               ruler_items.push_back (MenuElem (_("New location marker"), bind ( slot (*this, &Editor::mouse_add_new_marker), where)));
-               ruler_items.push_back (MenuElem (_("Clear all locations"), slot (*this, &Editor::clear_markers)));
+               ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where)));
+               ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
                ruler_items.push_back (SeparatorElem ());
                break;
        case RangeMarkerBarItem:
                //ruler_items.push_back (MenuElem (_("New Range")));
-               ruler_items.push_back (MenuElem (_("Clear all ranges"), slot (*this, &Editor::clear_ranges)));
+               ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
                ruler_items.push_back (SeparatorElem ());
 
                break;
@@ -323,13 +323,13 @@ Editor::popup_ruler_menu (jack_nframes_t where, ItemType t)
                break;
                
        case TempoBarItem:
-               ruler_items.push_back (MenuElem (_("New Tempo"), bind ( slot (*this, &Editor::mouse_add_new_tempo_event), where)));
+               ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
                ruler_items.push_back (MenuElem (_("Clear tempo")));
                ruler_items.push_back (SeparatorElem ());
                break;
 
        case MeterBarItem:
-               ruler_items.push_back (MenuElem (_("New Meter"), bind ( slot (*this, &Editor::mouse_add_new_meter_event), where)));
+               ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
                ruler_items.push_back (MenuElem (_("Clear meter")));
                ruler_items.push_back (SeparatorElem ());
                break;
@@ -338,58 +338,58 @@ Editor::popup_ruler_menu (jack_nframes_t where, ItemType t)
                break;
        }
        
-       ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_metric_minsec]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (X_("SMPTE"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (X_("SMPTE"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_metric_smpte]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (_("Frames"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Frames"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_metric_frames]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_metric_bbt]) {
                mitem->set_active(true);
        }
 
        ruler_items.push_back (SeparatorElem ());
 
-       ruler_items.push_back (CheckMenuElem (_("Meter"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Meter"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_time_meter]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_time_tempo]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_time_marker]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_time_range_marker]) {
                mitem->set_active(true);
        }
 
-       ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
-       mitem = (CheckMenuItem *) ruler_items.back(); 
+       ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
+       mitem = (CheckMenuItem *) &ruler_items.back(); 
        if (ruler_shown[ruler_time_transport_marker]) {
                mitem->set_active(true);
        }
@@ -528,25 +528,25 @@ Editor::update_ruler_visibility ()
        BoxList::iterator canvaspos = ruler_children.begin();
        
        _smpte_ruler = gtk_custom_hruler_new ();
-       smpte_ruler = wrap (_smpte_ruler);
+       smpte_ruler = Glib::wrap (_smpte_ruler);
        smpte_ruler->set_name ("SMPTERuler");
        smpte_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
        
        _bbt_ruler = gtk_custom_hruler_new ();
-       bbt_ruler = wrap (_bbt_ruler);
+       bbt_ruler = Glib::wrap (_bbt_ruler);
        bbt_ruler->set_name ("BBTRuler");
        bbt_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 
        _frames_ruler = gtk_custom_hruler_new ();
-       frames_ruler = wrap (_frames_ruler);
+       frames_ruler = Glib::wrap (_frames_ruler);
        frames_ruler->set_name ("FramesRuler");
        frames_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 
        _minsec_ruler = gtk_custom_hruler_new ();
-       minsec_ruler = wrap (_minsec_ruler);
+       minsec_ruler = Glib::wrap (_minsec_ruler);
        minsec_ruler->set_name ("MinSecRuler");
        minsec_ruler->set_size_request (-1, (int)timebar_height);
        gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
@@ -557,131 +557,118 @@ Editor::update_ruler_visibility ()
        frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 
-       smpte_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
-       bbt_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
-       frames_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
-       minsec_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
+       smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
+       bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
+       frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
+       minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 
-       smpte_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
-       bbt_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
-       frames_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
-       minsec_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
+       smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
+       bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
+       frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
+       minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
        
-       smpte_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
-       bbt_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
-       frames_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
-       minsec_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
+       smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
+       bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
+       frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
+       minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 
        
        if (ruler_shown[ruler_metric_minsec]) {
-               lab_children.push_back (Element(minsec_label, false, false));
-               ruler_children.insert (canvaspos, Element(*minsec_ruler, false, false));
+               lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
+               ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
                visible_timebars++;
        }
 
        if (ruler_shown[ruler_metric_smpte]) {
-               lab_children.push_back (Element(smpte_label, false, false));
-               ruler_children.insert (canvaspos, Element(*smpte_ruler, false, false));
+               lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
+               ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
                visible_timebars++;
        }
 
        if (ruler_shown[ruler_metric_frames]) {
-               lab_children.push_back (Element(frame_label, false, false));
-               ruler_children.insert (canvaspos, Element(*frames_ruler, false, false));
+               lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
+               ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
                visible_timebars++;
        }
 
        if (ruler_shown[ruler_metric_bbt]) {
-               lab_children.push_back (Element(bbt_label, false, false));
-               ruler_children.insert (canvaspos, Element(*bbt_ruler, false, false));
+               lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
+               ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
                visible_timebars++;
        }
 
        double tbpos = 0.0;
        double old_unit_pos ;
-       GtkArg args[1] ;
-       args[0].name = "y";
        
        if (ruler_shown[ruler_time_meter]) {
-               lab_children.push_back (Element(meter_label, false, false));
+               lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 
-               gtk_object_getv (GTK_OBJECT(meter_group), 1, args) ;
-               old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
+               old_unit_pos = meter_group->property_y();
                if (tbpos != old_unit_pos) {
-                       gtk_canvas_item_move (meter_group, 0.0, tbpos - old_unit_pos) ;
+                       meter_group->move ( 0.0, tbpos - old_unit_pos);
                }
-
-               //gtk_canvas_item_set (meter_group, "y", tbpos, NULL);
-               gtk_canvas_item_show (meter_group);
+               meter_group->show();
                tbpos += timebar_height;
                visible_timebars++;
        }
        else {
-               gtk_canvas_item_hide (meter_group);
+               meter_group->hide();
        }
        
        if (ruler_shown[ruler_time_tempo]) {
-               lab_children.push_back (Element(tempo_label, false, false));
-               gtk_object_getv (GTK_OBJECT(tempo_group), 1, args) ;
-               old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
+               lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
+               old_unit_pos = tempo_group->property_y();
                if (tbpos != old_unit_pos) {
-                       gtk_canvas_item_move (tempo_group, 0.0, tbpos - old_unit_pos) ;
+                       tempo_group->move(0.0, tbpos - old_unit_pos);
                }
-               //gtk_canvas_item_set (tempo_group, "y", tbpos, NULL);
-               gtk_canvas_item_show (tempo_group);
+               tempo_group->show();
                tbpos += timebar_height;
                visible_timebars++;
        }
        else {
-               gtk_canvas_item_hide (tempo_group);
+               tempo_group->hide();
        }
        
        if (ruler_shown[ruler_time_marker]) {
-               lab_children.push_back (Element(mark_label, false, false));
-               gtk_object_getv (GTK_OBJECT(marker_group), 1, args) ;
-               old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
+               lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
+               old_unit_pos = marker_group->property_y();
                if (tbpos != old_unit_pos) {
-                       gtk_canvas_item_move (marker_group, 0.0, tbpos - old_unit_pos) ;
+                       marker_group->move ( 0.0, tbpos - old_unit_pos);
                }
-               //gtk_canvas_item_set (marker_group, "y", tbpos, NULL);
-               gtk_canvas_item_show (marker_group);
+               marker_group->show();
                tbpos += timebar_height;
                visible_timebars++;
        }
        else {
-               gtk_canvas_item_hide (marker_group);
+               marker_group->hide();
        }
        
        if (ruler_shown[ruler_time_range_marker]) {
-               lab_children.push_back (Element(range_mark_label, false, false));
-               gtk_object_getv (GTK_OBJECT(range_marker_group), 1, args) ;
-               old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
+               lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
+               old_unit_pos = range_marker_group->property_y();
                if (tbpos != old_unit_pos) {
-                       gtk_canvas_item_move (range_marker_group, 0.0, tbpos - old_unit_pos) ;
+                       range_marker_group->move (0.0, tbpos - old_unit_pos);
                }
-               //gtk_canvas_item_set (marker_group, "y", tbpos, NULL);
-               gtk_canvas_item_show (range_marker_group);
+               range_marker_group->show();
                tbpos += timebar_height;
                visible_timebars++;
        }
        else {
-               gtk_canvas_item_hide (range_marker_group);
+               range_marker_group->hide();
        }
 
        if (ruler_shown[ruler_time_transport_marker]) {
-               lab_children.push_back (Element(transport_mark_label, false, false));
-               gtk_object_getv (GTK_OBJECT(transport_marker_group), 1, args) ;
-               old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
+               lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
+               old_unit_pos = transport_marker_group->property_y();
                if (tbpos != old_unit_pos) {
-                       gtk_canvas_item_move (transport_marker_group, 0.0, tbpos - old_unit_pos) ;
+                       transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
                }
-               //gtk_canvas_item_set (marker_group, "y", tbpos, NULL);
-               gtk_canvas_item_show (transport_marker_group);
+               transport_marker_group->show();
                tbpos += timebar_height;
                visible_timebars++;
        }
        else {
-               gtk_canvas_item_hide (transport_marker_group);
+               transport_marker_group->hide();
        }
        
        time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
@@ -698,7 +685,7 @@ Editor::update_ruler_visibility ()
 void
 Editor::update_just_smpte ()
 {
-       ENSURE_GUI_THREAD(slot (*this, &Editor::update_just_smpte));
+       ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
        
        if (session == 0) {
                return;
@@ -781,31 +768,31 @@ Editor::update_tempo_based_rulers ()
 /* Mark generation */
 
 gint
-Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 }
 
 gint
-Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 }
 
 gint
-Editor::_metric_get_frames (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 }
 
 gint
-Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 }
 
 gint
-Editor::metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        jack_nframes_t range;
        jack_nframes_t pos;
@@ -834,7 +821,7 @@ Editor::metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper
                upper = upper + spacer - lower;
                lower = 0;
        }
-       range = upper - lower;
+       range = (jack_nframes_t) floor (upper - lower);
 
        if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
                show_bits = true;
@@ -913,8 +900,8 @@ Editor::metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper
                nmarks = 1 + 24;
        }
   
-       pos = lower;
-
+       pos = (jack_nframes_t) floor (lower);
+       
        *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);  
        
        if (show_bits) {
@@ -1041,7 +1028,7 @@ Editor::metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper
 
 
 gint
-Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
         if (session == 0) {
                 return 0;
@@ -1072,6 +1059,8 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
        BBT_Time previous_beat;
        BBT_Time next_beat;
        jack_nframes_t next_beat_pos;
+       jack_nframes_t ilower = (jack_nframes_t) floor (lower);
+       jack_nframes_t iupper = (jack_nframes_t) floor (upper);
 
        if ((desirable_marks = maxchars / 6) == 0) {
                return 0;
@@ -1098,11 +1087,11 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
 
        /* First find what a beat's distance is, so we can start plotting stuff before the beginning of the ruler */
 
-       session->bbt_time(lower,previous_beat);
+       session->bbt_time(ilower,previous_beat);
        previous_beat.ticks = 0;
        next_beat = previous_beat;
 
-       if (session->tempo_map().meter_at(lower).beats_per_bar() < (next_beat.beats + 1)) {
+       if (session->tempo_map().meter_at(ilower).beats_per_bar() < (next_beat.beats + 1)) {
               next_beat.bars += 1;
               next_beat.beats = 1;
        } else {
@@ -1112,7 +1101,7 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
        frame_one_beats_worth = session->tempo_map().frame_time(next_beat) - session->tempo_map().frame_time(previous_beat);
 
 
-       zoomed_bbt_points = session->tempo_map().get_points((lower >= frame_one_beats_worth) ? lower - frame_one_beats_worth : 0, upper);
+       zoomed_bbt_points = session->tempo_map().get_points((ilower >= frame_one_beats_worth) ? ilower - frame_one_beats_worth : 0, iupper);
 
        if (current_bbt_points == 0 || zoomed_bbt_points == 0 || zoomed_bbt_points->empty()) {
                return 0;
@@ -1146,7 +1135,7 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
                bool i_am_accented = false;
                bool we_need_ticks = false;
        
-               position_of_helper = lower + (30 * Editor::get_current_zoom ());
+               position_of_helper = ilower + (30 * Editor::get_current_zoom ());
 
                if (desirable_marks >= (beats * 2)) {
                                nmarks = (zoomed_beats * bbt_beat_subdivision) + 1;
@@ -1158,12 +1147,12 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
                *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
 
                (*marks)[0].label = g_strdup(" ");
-               (*marks)[0].position = lower;
+               (*marks)[0].position = ilower;
                (*marks)[0].style = GtkCustomRulerMarkMicro;
                
                for (n = 1, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; ++i) {
                
-                       if ((*i).frame <= lower && (bar_helper_on)) {
+                       if ((*i).frame <= ilower && (bar_helper_on)) {
                        
                                        snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
                                        (*marks)[0].label = g_strdup (buf); 
@@ -1270,7 +1259,7 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
                        snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", zoomed_bars );
                        (*marks)[0].style = GtkCustomRulerMarkMajor;
                        (*marks)[0].label = g_strdup (buf);
-                       (*marks)[0].position = lower;
+                       (*marks)[0].position = ilower;
                } else if (desirable_marks < (uint32_t) (nmarks = (gint) (zoomed_bars / 64))) {
                        *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
                        for (n = 0, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; i++) {
@@ -1365,10 +1354,12 @@ Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper,
 }
 
 gint
-Editor::metric_get_frames (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        jack_nframes_t mark_interval;
        jack_nframes_t pos;
+       jack_nframes_t ilower = (jack_nframes_t) floor (lower);
+       jack_nframes_t iupper = (jack_nframes_t) floor (upper);
        gchar buf[16];
        gint nmarks;
        gint n;
@@ -1377,7 +1368,7 @@ Editor::metric_get_frames (GtkCustomRulerMark **marks, gulong lower, gulong uppe
                return 0;
        }
 
-       mark_interval = (upper - lower) / 5;
+       mark_interval = (iupper - ilower) / 5;
        if (mark_interval > session->frame_rate()) {
                mark_interval -= mark_interval % session->frame_rate();
        } else {
@@ -1385,7 +1376,7 @@ Editor::metric_get_frames (GtkCustomRulerMark **marks, gulong lower, gulong uppe
        }
        nmarks = 5;
        *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
-       for (n = 0, pos = lower; n < nmarks; pos += mark_interval, ++n) {
+       for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
                snprintf (buf, sizeof(buf), "%u", pos);
                (*marks)[n].label = g_strdup (buf);
                (*marks)[n].position = pos;
@@ -1428,7 +1419,7 @@ sample_to_clock_parts ( jack_nframes_t sample,
 }
 
 gint
-Editor::metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
+Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 {
        jack_nframes_t range;
        jack_nframes_t fr;
@@ -1443,6 +1434,8 @@ Editor::metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong uppe
        bool show_seconds = false;
        bool show_minutes = false;
        bool show_hours = false;
+       jack_nframes_t ilower = (jack_nframes_t) floor (lower);
+       jack_nframes_t iupper = (jack_nframes_t) floor (upper);
 
        if (session == 0) {
                return 0;
@@ -1457,7 +1450,7 @@ Editor::metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong uppe
                upper = upper + spacer;
                lower = 0;
        }
-       range = upper - lower;
+       range = iupper - ilower;
 
        if (range <  (fr / 50)) {
                mark_interval =  fr / 100; /* show 1/100 seconds */
@@ -1530,7 +1523,7 @@ Editor::metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong uppe
 
        nmarks = 1 + (range / mark_interval);
        *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
-       pos = ((lower + (mark_interval/2))/mark_interval) * mark_interval;
+       pos = ((ilower + (mark_interval/2))/mark_interval) * mark_interval;
        
        if (show_seconds) {
                for (n = 0; n < nmarks; pos += mark_interval, ++n) {