make all TimeAxisView derived types return PresentationInfo for sorting

gtk2_ardour/automation_time_axis.cc

@@ -1038,3 +1038,9 @@ AutomationTimeAxisView::cut_copy_clear_one (AutomationLine& line, Selection& sel
 		}
 	}
 }
+
+PresentationInfo const &
+AutomationTimeAxisView::presentation_info () const
+{
+	return _route->presentation_info();
+}

gtk2_ardour/automation_time_axis.h

@@ -73,6 +73,8 @@ class AutomationTimeAxisView : public TimeAxisView {
 	void set_samples_per_pixel (double);
 	std::string name() const { return _name; }
 
+	ARDOUR::PresentationInfo const & presentation_info () const;
+
         void add_automation_event (GdkEvent *, framepos_t, double, bool with_guard_points);
 
 	void clear_lines ();

gtk2_ardour/editor_drag.cc

@@ -527,22 +527,7 @@ Drag::add_midi_region (MidiTimeAxisView* view, bool commit)
 
 struct PresentationInfoTimeAxisViewSorter {
 	bool operator() (TimeAxisView* a, TimeAxisView* b) {
-		RouteTimeAxisView* ra = dynamic_cast<RouteTimeAxisView*> (a);
-		RouteTimeAxisView* rb = dynamic_cast<RouteTimeAxisView*> (b);
-		/* anything not a route goes at the end */
-		if (!ra && rb) {
-			return false;
-		}
-		if (!rb && ra) {
-			return true;
-		}
-		if (!ra && !rb) {
-			/* XXXX pointer comparison. Should use
-			presentation_info in a time axis view
-			*/
-			return a < b;
-		}
-		return ra->route()->presentation_info () < rb->route()->presentation_info();
+		return a->presentation_info() < b->presentation_info();
 	}
 };
 

gtk2_ardour/route_time_axis.cc

@@ -2924,3 +2924,9 @@ RouteTimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> c)
 		}
 	}
 }
+
+PresentationInfo const &
+RouteTimeAxisView::presentation_info () const
+{
+	return _route->presentation_info();
+}

gtk2_ardour/route_time_axis.h

@@ -75,16 +75,18 @@ class ItemCounts;
 class RouteTimeAxisView : public RouteUI, public TimeAxisView
 {
 public:
- 	RouteTimeAxisView (PublicEditor&, ARDOUR::Session*, ArdourCanvas::Canvas& canvas);
- 	virtual ~RouteTimeAxisView ();
+	RouteTimeAxisView (PublicEditor&, ARDOUR::Session*, ArdourCanvas::Canvas& canvas);
+	virtual ~RouteTimeAxisView ();
 
 	void set_route (boost::shared_ptr<ARDOUR::Route>);
 
+	ARDOUR::PresentationInfo const & presentation_info () const;
+
 	void show_selection (TimeSelection&);
 	void set_button_names ();
 
 	void set_samples_per_pixel (double);
- 	void set_height (uint32_t h, TrackHeightMode m = OnlySelf);
+	void set_height (uint32_t h, TrackHeightMode m = OnlySelf);
 	void show_timestretch (framepos_t start, framepos_t end, int layers, int layer);
 	void hide_timestretch ();
 	void selection_click (GdkEventButton*);
@@ -333,4 +335,3 @@ private:
 };
 
 #endif /* __ardour_route_time_axis_h__ */
-

gtk2_ardour/time_axis_view.h

@@ -39,7 +39,9 @@
 #include "pbd/signals.h"
 
 #include "ardour/types.h"
+#include "ardour/presentation_info.h"
 #include "ardour/region.h"
+
 #include "evoral/Parameter.hpp"
 
 #include "canvas/line.h"
@@ -102,6 +104,8 @@ class TimeAxisView : public virtual AxisView
 
 	static void setup_sizes ();
 
+	virtual ARDOUR::PresentationInfo const & presentation_info () const = 0;
+
 	/** @return index of this TimeAxisView within its parent */
 	int order () const { return _order; }
 

gtk2_ardour/vca_time_axis.cc

@@ -274,3 +274,9 @@ VCATimeAxisView::drop_release (GdkEventButton*)
 
 	return true;
 }
+
+PresentationInfo const &
+VCATimeAxisView::presentation_info () const
+{
+	return _vca->presentation_info();
+}

gtk2_ardour/vca_time_axis.h

@@ -39,6 +39,8 @@ class VCATimeAxisView : public TimeAxisView
 	VCATimeAxisView (PublicEditor&, ARDOUR::Session*, ArdourCanvas::Canvas& canvas);
 	virtual ~VCATimeAxisView ();
 
+	ARDOUR::PresentationInfo const & presentation_info () const;
+
 	void set_vca (boost::shared_ptr<ARDOUR::VCA>);
 	boost::shared_ptr<ARDOUR::VCA> vca() const { return _vca; }