Remove all use of nframes_t.
[ardour.git] / gtk2_ardour / time_axis_view.cc
index 2c241ee283b89a04a4553027e7689f46c7eab124..a206b1a2313c5cbc60eb75bc4d30a8d83798051c 100644 (file)
 #include <libgnomecanvasmm/item.h>
 
 #include "pbd/error.h"
+#include "pbd/convert.h"
 
 #include <gtkmm2ext/utils.h>
 #include <gtkmm2ext/selector.h>
-#include <gtkmm2ext/stop_signal.h>
 
 #include "ardour/session.h"
 #include "ardour/utils.h"
@@ -40,6 +40,7 @@
 #include "ardour/location.h"
 
 #include "ardour_ui.h"
+#include "global_signals.h"
 #include "gui_thread.h"
 #include "public_editor.h"
 #include "time_axis_view.h"
@@ -52,6 +53,7 @@
 #include "rgb_macros.h"
 #include "utils.h"
 #include "streamview.h"
+#include "editor_drag.h"
 
 #include "i18n.h"
 
@@ -65,15 +67,10 @@ using namespace ArdourCanvas;
 using Gtkmm2ext::Keyboard;
 
 const double trim_handle_size = 6.0; /* pixels */
-
-uint32_t TimeAxisView::hLargest = 0;
-uint32_t TimeAxisView::hLarge = 0;
-uint32_t TimeAxisView::hLarger = 0;
-uint32_t TimeAxisView::hNormal = 0;
-uint32_t TimeAxisView::hSmaller = 0;
-uint32_t TimeAxisView::hSmall = 0;
-bool TimeAxisView::need_size_info = true;
+uint32_t TimeAxisView::extra_height;
+uint32_t TimeAxisView::smaller_height;
 int const TimeAxisView::_max_order = 512;
+PBD::Signal1<void,TimeAxisView*> TimeAxisView::CatchDeletion;
 
 TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* rent, Canvas& /*canvas*/)
        : AxisView (sess),
@@ -82,14 +79,16 @@ TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisVie
          _editor (ed),
          _order (0)
 {
-       if (need_size_info) {
-               compute_controls_size_info ();
-               need_size_info = false;
+       if (extra_height == 0) {
+               compute_heights ();
        }
+       
        _canvas_background = new Group (*ed.get_background_group (), 0.0, 0.0);
        _canvas_display = new Group (*ed.get_trackview_group (), 0.0, 0.0);
+       _canvas_display->hide(); // reveal as needed 
 
        selection_group = new Group (*_canvas_display);
+       selection_group->set_data (X_("timeselection"), (void *) 1);
        selection_group->hide();
 
        _ghost_group = new Group (*_canvas_display);
@@ -98,7 +97,6 @@ TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisVie
 
        control_parent = 0;
        display_menu = 0;
-       size_menu = 0;
        _hidden = false;
        in_destructor = false;
        height = 0;
@@ -144,12 +142,13 @@ TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisVie
        controls_table.show_all ();
        controls_table.set_no_show_all ();
 
-       resizer.set_size_request (10, 10);
+       resizer.set_size_request (10, 6);
        resizer.set_name ("ResizeHandle");
        resizer.signal_expose_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_expose));
        resizer.signal_button_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_button_press));
        resizer.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_button_release));
        resizer.signal_motion_notify_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_motion));
+
        resizer.set_events (Gdk::BUTTON_PRESS_MASK|
                        Gdk::BUTTON_RELEASE_MASK|
                        Gdk::POINTER_MOTION_MASK|
@@ -162,8 +161,7 @@ TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisVie
        HSeparator* separator = manage (new HSeparator());
 
        controls_vbox.pack_start (controls_table, false, false);
-       controls_vbox.pack_end (*separator, false, false);
-       controls_vbox.pack_end (resizer_box, false, true);
+       controls_vbox.pack_end (resizer_box, false, false);
        controls_vbox.show ();
 
        //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
@@ -174,10 +172,16 @@ TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisVie
        controls_ebox.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
        controls_ebox.signal_scroll_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 
-       controls_hbox.pack_start (controls_ebox,true,true);
+       controls_hbox.pack_start (controls_ebox, false, false);
        controls_hbox.show ();
 
+       time_axis_vbox.pack_start (controls_hbox, true, true);
+       time_axis_vbox.pack_end (*separator, false, false);
+       time_axis_vbox.show();
+
        ColorsChanged.connect (sigc::mem_fun (*this, &TimeAxisView::color_handler));
+
+       GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&TimeAxisView::erase_ghost, this, _1), gui_context());
 }
 
 TimeAxisView::~TimeAxisView()
@@ -201,10 +205,6 @@ TimeAxisView::~TimeAxisView()
                delete (*i)->end_trim;
        }
 
-       for (list<SimpleLine*>::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
-               delete (*i);
-       }
-
        delete selection_group;
        selection_group = 0;
 
@@ -229,11 +229,11 @@ guint32
 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 {
        if (control_parent) {
-               control_parent->reorder_child (controls_hbox, nth);
+               control_parent->reorder_child (time_axis_vbox, nth);
        } else {
                control_parent = parent;
-               parent->pack_start (controls_hbox, false, false);
-               parent->reorder_child (controls_hbox, nth);
+               parent->pack_start (time_axis_vbox, false, false);
+               parent->reorder_child (time_axis_vbox, nth);
        }
 
        _order = nth;
@@ -252,7 +252,7 @@ TimeAxisView::show_at (double y, int& nth, VBox *parent)
        _canvas_display->raise_to_top ();
 
        if (_marked_for_display) {
-               controls_hbox.show ();
+               time_axis_vbox.show ();
                controls_ebox.show ();
                _canvas_background->show ();
        }
@@ -267,7 +267,7 @@ TimeAxisView::show_at (double y, int& nth, VBox *parent)
                if (canvas_item_visible ((*i)->_canvas_display)) {
                        ++nth;
                        _effective_height += (*i)->show_at (y + _effective_height, nth, parent);
-               }
+               } 
        }
 
        return _effective_height;
@@ -358,7 +358,7 @@ TimeAxisView::hide ()
        _canvas_background->hide ();
 
        if (control_parent) {
-               control_parent->remove (controls_hbox);
+               control_parent->remove (time_axis_vbox);
                control_parent = 0;
        }
 
@@ -381,16 +381,33 @@ TimeAxisView::hide ()
 void
 TimeAxisView::step_height (bool bigger)
 {
-       static const uint32_t step = 20;
+       static const uint32_t step = 25;
 
        if (bigger) {
-               set_height (height + step);
+               if (height == preset_height(HeightSmall)) {
+                       set_height (preset_height(HeightSmaller));
+               } 
+               else if (height == preset_height(HeightSmaller)) {
+                       set_height (preset_height(HeightNormal));
+               } 
+               else {
+                       set_height (height + step);
+               }
+
        } else {
-               if (height > step) {
-                       set_height (std::max (height - step, hSmall));
-               } else if (height != hSmall) {
-                       set_height (hSmall);
+               if ( height == preset_height(HeightSmall)){
+                       return;
                }
+               
+               if (height <= preset_height (HeightSmaller) && height > preset_height (HeightSmall)) {
+                       set_height (preset_height(HeightSmall));
+               }
+               else if ( height <= preset_height (HeightNormal) && height > preset_height (HeightSmaller)){
+                       set_height (preset_height(HeightSmaller));
+               }
+               else {
+                       set_height (height - step);
+               } 
        }
 }
 
@@ -405,9 +422,19 @@ TimeAxisView::set_heights (uint32_t h)
 }
 
 void
-TimeAxisView::set_height(uint32_t h)
+TimeAxisView::set_height (Height h)
 {
-       controls_ebox.property_height_request () = h;
+       set_height (preset_height (h));
+}
+
+void
+TimeAxisView::set_height (uint32_t h)
+{
+       if (h < preset_height (HeightSmall)) {
+               h = preset_height (HeightSmall);
+       }
+       
+       time_axis_vbox.property_height_request () = h;
        height = h;
 
        for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
@@ -418,8 +445,6 @@ TimeAxisView::set_height(uint32_t h)
                /* resize the selection rect */
                show_selection (_editor.get_selection().time);
        }
-
-       reshow_feature_lines ();
 }
 
 bool
@@ -466,8 +491,8 @@ TimeAxisView::name_entry_key_release (GdkEventKey* ev)
                
                /* resize to show editable name display */
                
-               if ((*i)->current_height() <= hSmaller) {
-                       (*i)->set_height (hSmaller);
+               if ((*i)->current_height() <= preset_height (HeightSmaller)) {
+                       (*i)->set_height (HeightSmaller);
                }
                
                (*i)->name_entry.grab_focus();
@@ -590,23 +615,6 @@ TimeAxisView::popup_display_menu (guint32 when)
        display_menu->popup (1, when);
 }
 
-gint
-TimeAxisView::size_click (GdkEventButton *ev)
-{
-       conditionally_add_to_selection ();
-       popup_size_menu (ev->time);
-       return TRUE;
-}
-
-void
-TimeAxisView::popup_size_menu (guint32 when)
-{
-       if (size_menu == 0) {
-               build_size_menu ();
-       }
-       size_menu->popup (1, when);
-}
-
 void
 TimeAxisView::set_selected (bool yn)
 {
@@ -618,11 +626,11 @@ TimeAxisView::set_selected (bool yn)
 
        if (_selected) {
                controls_ebox.set_name (controls_base_selected_name);
-               controls_hbox.set_name (controls_base_selected_name);
+               time_axis_vbox.set_name (controls_base_selected_name);
                controls_vbox.set_name (controls_base_selected_name);
        } else {
                controls_ebox.set_name (controls_base_unselected_name);
-               controls_hbox.set_name (controls_base_unselected_name);
+               time_axis_vbox.set_name (controls_base_unselected_name);
                controls_vbox.set_name (controls_base_unselected_name);
                hide_selection ();
 
@@ -639,28 +647,13 @@ TimeAxisView::set_selected (bool yn)
        resizer.queue_draw ();
 }
 
-void
-TimeAxisView::build_size_menu ()
-{
-       using namespace Menu_Helpers;
-
-       size_menu = new Menu;
-       size_menu->set_name ("ArdourContextMenu");
-       MenuList& items = size_menu->items();
-
-       items.push_back (MenuElem (_("Largest"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
-       items.push_back (MenuElem (_("Large"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
-       items.push_back (MenuElem (_("Larger"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
-       items.push_back (MenuElem (_("Normal"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
-       items.push_back (MenuElem (_("Smaller"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
-       items.push_back (MenuElem (_("Small"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
-}
-
 void
 TimeAxisView::build_display_menu ()
 {
        using namespace Menu_Helpers;
 
+       delete display_menu;
+
        display_menu = new Menu;
        display_menu->set_name ("ArdourContextMenu");
 
@@ -676,15 +669,10 @@ TimeAxisView::set_samples_per_unit (double spu)
 
        AnalysisFeatureList::const_iterator i;
        list<ArdourCanvas::SimpleLine*>::iterator l;
-
-       for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
-               (*l)->property_x1() = _editor.frame_to_pixel (*i);
-               (*l)->property_x2() = _editor.frame_to_pixel (*i);
-       }
 }
 
 void
-TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
+TimeAxisView::show_timestretch (framepos_t start, framepos_t end)
 {
        for (Children::iterator i = children.begin(); i != children.end(); ++i) {
                (*i)->show_timestretch (start, end);
@@ -726,7 +714,8 @@ TimeAxisView::show_selection (TimeSelection& ts)
        selection_group->raise_to_top();
 
        for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
-               nframes_t start, end, cnt;
+               framepos_t start, end;
+               framecnt_t cnt;
 
                start = (*i).start;
                end = (*i).end;
@@ -749,12 +738,12 @@ TimeAxisView::show_selection (TimeSelection& ts)
                        rect->start_trim->property_x1() = x1;
                        rect->start_trim->property_y1() = 1.0;
                        rect->start_trim->property_x2() = x1 + trim_handle_size;
-                       rect->start_trim->property_y2() = 1.0 + trim_handle_size;
+                       rect->start_trim->property_y2() = y2;
 
                        rect->end_trim->property_x1() = x2 - trim_handle_size;
                        rect->end_trim->property_y1() = 1.0;
                        rect->end_trim->property_x2() = x2;
-                       rect->end_trim->property_y2() = 1.0 + trim_handle_size;
+                       rect->end_trim->property_y2() = y2;
 
                        rect->start_trim->show();
                        rect->end_trim->show();
@@ -850,24 +839,22 @@ TimeAxisView::get_selection_rect (uint32_t id)
                rect = new SelectionRect;
 
                rect->rect = new SimpleRect (*selection_group);
+               rect->rect->property_outline_what() = 0x0;
                rect->rect->property_x1() = 0.0;
                rect->rect->property_y1() = 0.0;
                rect->rect->property_x2() = 0.0;
                rect->rect->property_y2() = 0.0;
                rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
-               rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 
                rect->start_trim = new SimpleRect (*selection_group);
+               rect->start_trim->property_outline_what() = 0x0;
                rect->start_trim->property_x1() = 0.0;
                rect->start_trim->property_x2() = 0.0;
-               rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
-               rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
-
+               
                rect->end_trim = new SimpleRect (*selection_group);
+               rect->end_trim->property_outline_what() = 0x0;
                rect->end_trim->property_x1() = 0.0;
                rect->end_trim->property_x2() = 0.0;
-               rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
-               rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 
                free_selection_rects.push_front (rect);
 
@@ -906,8 +893,15 @@ TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
        }
 }
 
+/** Get selectable things within a given range.
+ *  @param start Start time in session frames.
+ *  @param end End time in session frames.
+ *  @param top Top y range, in trackview coordinates (ie 0 is the top of the track view)
+ *  @param bot Bottom y range, in trackview coordinates (ie 0 is the top of the track view)
+ *  @param result Filled in with selectable things.
+ */
 void
-TimeAxisView::get_selectables (nframes_t /*start*/, nframes_t /*end*/, double /*top*/, double /*bot*/, list<Selectable*>& /*result*/)
+TimeAxisView::get_selectables (framepos_t /*start*/, framepos_t /*end*/, double /*top*/, double /*bot*/, list<Selectable*>& /*result*/)
 {
        return;
 }
@@ -925,24 +919,23 @@ TimeAxisView::add_ghost (RegionView* rv)
 
        if(gr) {
                ghosts.push_back(gr);
-               gr->CatchDeletion.connect (*this, ui_bind (&TimeAxisView::erase_ghost, this, _1), gui_context());
        }
 }
 
 void
-TimeAxisView::remove_ghost (RegionView* rv) {
+TimeAxisView::remove_ghost (RegionView* rv) 
+{
        rv->remove_ghost_in (*this);
 }
 
 void
-TimeAxisView::erase_ghost (GhostRegion* gr) {
-       if(in_destructor) {
+TimeAxisView::erase_ghost (GhostRegion* gr) 
+{
+       if (in_destructor) {
                return;
        }
-
-       list<GhostRegion*>::iterator i;
-
-       for (i = ghosts.begin(); i != ghosts.end(); ++i) {
+       
+       for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
                if ((*i) == gr) {
                        ghosts.erase (i);
                        break;
@@ -994,6 +987,8 @@ TimeAxisView::get_parent_with_state ()
 XMLNode&
 TimeAxisView::get_state ()
 {
+       /* XXX: is this method used? */
+       
        XMLNode* node = new XMLNode ("TAV-" + name());
        char buf[32];
 
@@ -1008,27 +1003,32 @@ TimeAxisView::set_state (const XMLNode& node, int /*version*/)
 {
        const XMLProperty *prop;
 
+       /* XXX: I think this might be vestigial */
        if ((prop = node.property ("marked-for-display")) != 0) {
                _marked_for_display = (prop->value() == "1");
        }
 
+       if ((prop = node.property ("shown-editor")) != 0) {
+               _marked_for_display = string_is_affirmative (prop->value ());
+       }
+
        if ((prop = node.property ("track-height")) != 0) {
 
                if (prop->value() == "largest") {
-                       set_height (hLargest);
+                       set_height (HeightLargest);
                } else if (prop->value() == "large") {
-                       set_height (hLarge);
+                       set_height (HeightLarge);
                } else if (prop->value() == "larger") {
-                       set_height (hLarger);
+                       set_height (HeightLarger);
                } else if (prop->value() == "normal") {
-                       set_height (hNormal);
+                       set_height (HeightNormal);
                } else if (prop->value() == "smaller") {
-                       set_height (hSmaller);
+                       set_height (HeightSmaller);
                } else if (prop->value() == "small") {
-                       set_height (hSmall);
+                       set_height (HeightSmall);
                } else {
                        error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
-                       set_height (Normal);
+                       set_height (HeightNormal);
                }
 
        } else if ((prop = node.property ("height")) != 0) {
@@ -1037,7 +1037,7 @@ TimeAxisView::set_state (const XMLNode& node, int /*version*/)
 
        } else {
 
-               set_height (hNormal);
+               set_height (HeightNormal);
        }
 
        return 0;
@@ -1054,16 +1054,16 @@ TimeAxisView::reset_height()
 }
 
 void
-TimeAxisView::compute_controls_size_info ()
+TimeAxisView::compute_heights ()
 {
        Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
        Gtk::Table two_row_table (2, 8);
        Gtk::Table one_row_table (1, 8);
        Button* buttons[5];
        const int border_width = 2;
-       const int extra_height = (2 * border_width)
+       extra_height = (2 * border_width)
                //+ 2   // 2 pixels for the hseparator between TimeAxisView control areas
-               + 10; // resizer button (3 x 2 pixel elements + 2 x 2 pixel gaps)
+               + 6; // resizer button (3 x 2 pixel elements + 2 x 2 pixel gaps)
 
        window.add (one_row_table);
 
@@ -1087,36 +1087,9 @@ TimeAxisView::compute_controls_size_info ()
        one_row_table.show_all ();
        Gtk::Requisition req(one_row_table.size_request ());
 
-
        // height required to show 1 row of buttons
 
-       hSmaller = req.height + extra_height;
-
-       window.remove ();
-       window.add (two_row_table);
-
-       two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
-       two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
-       two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
-       two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
-
-       two_row_table.show_all ();
-       req = two_row_table.size_request ();
-
-       // height required to show all normal buttons
-
-       hNormal = /*req.height*/ 48 + extra_height;
-
-       // these heights are all just larger than normal. no more
-       // elements are visible (yet).
-
-       hLarger = hNormal + 50;
-       hLarge = hNormal + 150;
-       hLargest = hNormal + 250;
-
-       // height required to show track name
-
-       hSmall = 27;
+       smaller_height = req.height + extra_height;
 }
 
 void
@@ -1233,51 +1206,6 @@ TimeAxisView::covers_y_position (double y)
        return std::make_pair ( (TimeAxisView *) 0, 0);
 }
 
-void
-TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
-{
-       analysis_features = pos;
-       reshow_feature_lines ();
-}
-
-
-void
-TimeAxisView::hide_feature_lines ()
-{
-       list<ArdourCanvas::SimpleLine*>::iterator l;
-
-       for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
-               (*l)->hide();
-       }
-}
-
-void
-TimeAxisView::reshow_feature_lines ()
-{
-       while (feature_lines.size()< analysis_features.size()) {
-               ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*_canvas_display);
-               l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
-               feature_lines.push_back (l);
-       }
-
-       while (feature_lines.size() > analysis_features.size()) {
-               ArdourCanvas::SimpleLine *line = feature_lines.back();
-               feature_lines.pop_back ();
-               delete line;
-       }
-
-       AnalysisFeatureList::const_iterator i;
-       list<ArdourCanvas::SimpleLine*>::iterator l;
-
-       for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
-               (*l)->property_x1() = _editor.frame_to_pixel (*i);
-               (*l)->property_x2() = _editor.frame_to_pixel (*i);
-               (*l)->property_y1() = 0;
-               (*l)->property_y2() = current_height();
-               (*l)->show ();
-       }
-}
-
 bool
 TimeAxisView::resizer_button_press (GdkEventButton* event)
 {
@@ -1288,6 +1216,7 @@ TimeAxisView::resizer_button_press (GdkEventButton* event)
 bool
 TimeAxisView::resizer_button_release (GdkEventButton*)
 {
+       _editor.stop_canvas_autoscroll ();
        _resize_drag_start = -1;
        return true;
 }
@@ -1301,13 +1230,24 @@ TimeAxisView::idle_resize (uint32_t h)
 bool
 TimeAxisView::resizer_motion (GdkEventMotion* ev)
 {
-       if (_resize_drag_start < 0) {
-               return true;
-       }
-
-       int32_t const delta = (int32_t) floor (ev->y_root - _resize_drag_start);
-       _editor.add_to_idle_resize (this, delta);
-       _resize_drag_start = ev->y_root;
+       if (_resize_drag_start >= 0) {
+               /* (ab)use the DragManager to do autoscrolling; adjust the event coordinates
+                  into the world coordinate space that DragManager::motion_handler is expecting,
+                  and then fake a DragManager motion event so that when maybe_autoscroll
+                  asks DragManager for the current pointer position it will get the correct
+                  answers.
+               */
+               int tx, ty;
+               resizer.translate_coordinates (*control_parent, ev->x, ev->y, tx, ty);
+               ev->y = ty - _editor.get_trackview_group_vertical_offset();
+               _editor.drags()->motion_handler ((GdkEvent *) ev, false);
+               _editor.maybe_autoscroll (false, true);
+
+               /* now do the actual TAV resize */
+                int32_t const delta = (int32_t) floor (ev->y_root - _resize_drag_start);
+                _editor.add_to_idle_resize (this, delta);
+                _resize_drag_start = ev->y_root;
+        }
 
        return true;
 }
@@ -1343,13 +1283,64 @@ TimeAxisView::resizer_expose (GdkEventExpose* event)
        win->draw_line (light, 1, 5, w - 1, 5);
        win->draw_point (light, w - 1, 4);
 
-       /* handle/line #3 */
-
-       win->draw_line (dark, 0, 8, w - 2, 8);
-       win->draw_point (dark, 0, 9);
-       win->draw_line (light, 1, 9, w - 1, 9);
-       win->draw_point (light, w - 1, 8);
+       /* use vertical resize mouse cursor */
+       win->set_cursor(Gdk::Cursor(Gdk::SB_V_DOUBLE_ARROW));
 
        return true;
 }
 
+bool
+TimeAxisView::set_visibility (bool yn)
+{
+       if (yn != marked_for_display()) {
+               if (yn) {
+                       set_marked_for_display (true);
+                       canvas_display()->show();
+               } else {
+                       set_marked_for_display (false);
+                       hide ();
+               }
+               return true; // things changed
+       }
+       
+       return false;
+}
+
+uint32_t
+TimeAxisView::preset_height (Height h)
+{
+       switch (h) {
+       case HeightLargest:
+               return extra_height + 48 + 250;
+       case HeightLarger:
+               return extra_height + 48 + 150;
+       case HeightLarge:
+               return extra_height + 48 + 50;
+       case HeightNormal:
+               return extra_height + 48;
+       case HeightSmall:
+               return 27;
+       case HeightSmaller:
+               return smaller_height;
+       }
+
+       /* NOTREACHED */
+       return 0;
+}
+
+/** @return Child time axis views that are not hidden */
+TimeAxisView::Children
+TimeAxisView::get_child_list ()
+{
+       Children c;
+
+       for (Children::iterator i = children.begin(); i != children.end(); ++i) {
+               if (!(*i)->hidden()) {
+                       c.push_back(*i);
+               }
+       }
+       
+       return c;
+}
+
+