Revert "adjust horizontal-offset for snap/grid dropdown." Wrong fix for the problem.
[ardour.git] / gtk2_ardour / audio_region_view.cc
index 4d45d6d837e4d16e34358429073ec4a2ddf76228..93509e8948feea188262e0165622223721ce67ea 100644 (file)
@@ -19,6 +19,7 @@
 #include <cmath>
 #include <cassert>
 #include <algorithm>
+#include <vector>
 
 #include <boost/scoped_array.hpp>
 
 
 #include "evoral/Curve.hpp"
 
+#include "canvas/rectangle.h"
+#include "canvas/polygon.h"
+#include "canvas/poly_line.h"
+#include "canvas/line.h"
+#include "canvas/text.h"
+#include "canvas/xfade_curve.h"
+#include "canvas/debug.h"
+#include "canvas/utils.h"
+
 #include "streamview.h"
 #include "audio_region_view.h"
 #include "audio_time_axis.h"
-#include "simplerect.h"
-#include "simpleline.h"
-#include "waveview.h"
 #include "public_editor.h"
 #include "audio_region_editor.h"
 #include "audio_streamview.h"
 #include "control_point.h"
 #include "ghostregion.h"
 #include "audio_time_axis.h"
-#include "utils.h"
 #include "rgb_macros.h"
 #include "gui_thread.h"
 #include "ardour_ui.h"
 
 #include "i18n.h"
 
-#define MUTED_ALPHA 10
+#define MUTED_ALPHA 48
 
 using namespace std;
 using namespace ARDOUR;
@@ -66,114 +72,111 @@ using namespace Editing;
 using namespace ArdourCanvas;
 
 static const int32_t sync_mark_width = 9;
-static double const handle_size = 6; /* height of fade handles */
+static double const handle_size = 10; /* height of fade handles */
 
-AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
-                                 Gdk::Color const & basic_color)
+AudioRegionView::AudioRegionView (ArdourCanvas::Container *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
+                                 uint32_t basic_color)
        : RegionView (parent, tv, r, spu, basic_color)
        , sync_mark(0)
-       , fade_in_shape(0)
-       , fade_out_shape(0)
        , fade_in_handle(0)
        , fade_out_handle(0)
-       , start_xfade_in (0)
-       , start_xfade_out (0)
+       , fade_in_trim_handle(0)
+       , fade_out_trim_handle(0)
+       , start_xfade_curve (0)
        , start_xfade_rect (0)
        , _start_xfade_visible (false)
-       , end_xfade_in (0)
-       , end_xfade_out (0)
+       , end_xfade_curve (0)
        , end_xfade_rect (0)
        , _end_xfade_visible (false)
        , _amplitude_above_axis(1.0)
-       , fade_color(0)
+       , trim_fade_in_drag_active(false)
+       , trim_fade_out_drag_active(false)
 {
        Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&AudioRegionView::parameter_changed, this, _1), gui_context());
 }
 
-AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
-                                 Gdk::Color const & basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
+AudioRegionView::AudioRegionView (ArdourCanvas::Container *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
+                                 uint32_t basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
        : RegionView (parent, tv, r, spu, basic_color, recording, visibility)
        , sync_mark(0)
-       , fade_in_shape(0)
-       , fade_out_shape(0)
        , fade_in_handle(0)
        , fade_out_handle(0)
-       , start_xfade_in (0)
-       , start_xfade_out (0)
+       , fade_in_trim_handle(0)
+       , fade_out_trim_handle(0)
+       , start_xfade_curve (0)
        , start_xfade_rect (0)
        , _start_xfade_visible (false)
-       , end_xfade_in (0)
-       , end_xfade_out (0)
+       , end_xfade_curve (0)
        , end_xfade_rect (0)
        , _end_xfade_visible (false)
        , _amplitude_above_axis(1.0)
-       , fade_color(0)
+       , trim_fade_in_drag_active(false)
+       , trim_fade_out_drag_active(false)
 {
        Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&AudioRegionView::parameter_changed, this, _1), gui_context());
 }
 
 AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
        : RegionView (other, boost::shared_ptr<Region> (other_region))
-       , fade_in_shape(0)
-       , fade_out_shape(0)
        , fade_in_handle(0)
        , fade_out_handle(0)
-       , start_xfade_in (0)
-       , start_xfade_out (0)
+       , fade_in_trim_handle(0)
+       , fade_out_trim_handle(0)
+       , start_xfade_curve (0)
        , start_xfade_rect (0)
        , _start_xfade_visible (false)
-       , end_xfade_in (0)
-       , end_xfade_out (0)
+       , end_xfade_curve (0)
        , end_xfade_rect (0)
        , _end_xfade_visible (false)
        , _amplitude_above_axis (other._amplitude_above_axis)
-       , fade_color(0)
+       , trim_fade_in_drag_active(false)
+       , trim_fade_out_drag_active(false)
 {
-       Gdk::Color c;
-       int r,g,b,a;
-
-       UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
-       c.set_rgb_p (r/255.0, g/255.0, b/255.0);
-
-       init (c, true);
+       init (true);
 
        Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&AudioRegionView::parameter_changed, this, _1), gui_context());
 }
 
 void
-AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
+AudioRegionView::init (bool wfd)
 {
        // FIXME: Some redundancy here with RegionView::init.  Need to figure out
        // where order is important and where it isn't...
 
-       RegionView::init (basic_color, wfd);
+       RegionView::init (wfd);
 
        _amplitude_above_axis = 1.0;
 
-       compute_colors (basic_color);
-
        create_waves ();
 
-       fade_in_shape = new ArdourCanvas::Polygon (*group);
-       fade_in_shape->property_fill_color_rgba() = fade_color;
-       fade_in_shape->set_data ("regionview", this);
-
-       fade_out_shape = new ArdourCanvas::Polygon (*group);
-       fade_out_shape->property_fill_color_rgba() = fade_color;
-       fade_out_shape->set_data ("regionview", this);
-
        if (!_recregion) {
-               fade_in_handle = new ArdourCanvas::SimpleRect (*group);
-               fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
-               fade_in_handle->property_outline_color_rgba() = RGBA_TO_UINT (0, 0, 0, 0);
-
+               fade_in_handle = new ArdourCanvas::Rectangle (group);
+               CANVAS_DEBUG_NAME (fade_in_handle, string_compose ("fade in handle for %1", region()->name()));
+               fade_in_handle->set_outline_color (ArdourCanvas::rgba_to_color (0, 0, 0, 1.0));
+               fade_in_handle->set_fill_color (ARDOUR_UI::config()->get_canvasvar_InactiveFadeHandle());
                fade_in_handle->set_data ("regionview", this);
+               fade_in_handle->hide ();
 
-               fade_out_handle = new ArdourCanvas::SimpleRect (*group);
-               fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
-               fade_out_handle->property_outline_color_rgba() = RGBA_TO_UINT (0, 0, 0, 0);
-
+               fade_out_handle = new ArdourCanvas::Rectangle (group);
+               CANVAS_DEBUG_NAME (fade_out_handle, string_compose ("fade out handle for %1", region()->name()));
+               fade_out_handle->set_outline_color (ArdourCanvas::rgba_to_color (0, 0, 0, 1.0));
+               fade_out_handle->set_fill_color (ARDOUR_UI::config()->get_canvasvar_InactiveFadeHandle());
                fade_out_handle->set_data ("regionview", this);
+               fade_out_handle->hide ();
+
+               fade_in_trim_handle = new ArdourCanvas::Rectangle (group);
+               CANVAS_DEBUG_NAME (fade_in_handle, string_compose ("fade in trim handle for %1", region()->name()));
+               fade_in_trim_handle->set_outline_color (ArdourCanvas::rgba_to_color (0, 0, 0, 1.0));
+               fade_in_trim_handle->set_fill_color (ARDOUR_UI::config()->get_canvasvar_InactiveFadeHandle());
+               fade_in_trim_handle->set_data ("regionview", this);
+               fade_in_trim_handle->hide ();
+
+               fade_out_trim_handle = new ArdourCanvas::Rectangle (group);
+               CANVAS_DEBUG_NAME (fade_out_handle, string_compose ("fade out trim handle for %1", region()->name()));
+               fade_out_trim_handle->set_outline_color (ArdourCanvas::rgba_to_color (0, 0, 0, 1.0));
+               fade_out_trim_handle->set_fill_color (ARDOUR_UI::config()->get_canvasvar_InactiveFadeHandle());
+               fade_out_trim_handle->set_data ("regionview", this);
+               fade_out_trim_handle->hide ();
        }
 
        setup_fade_handle_positions ();
@@ -197,7 +200,11 @@ AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
        region_sync_changed ();
 
        region_resized (ARDOUR::bounds_change);
-       set_waveview_data_src();
+
+       for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
+               (*i)->set_duration (_region->length() / samples_per_pixel);
+       }
+
        region_locked ();
        envelope_active_changed ();
        fade_in_active_changed ();
@@ -205,22 +212,32 @@ AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
 
        reset_width_dependent_items (_pixel_width);
 
-       fade_in_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
        if (fade_in_handle) {
-               fade_in_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
+               fade_in_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this, false));
        }
 
-       fade_out_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
-
        if (fade_out_handle) {
-               fade_out_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
+               fade_out_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this, false));
+       }
+
+       if (fade_in_trim_handle) {
+               fade_in_trim_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_trim_handle, this, true));
+       }
+
+       if (fade_out_trim_handle) {
+               fade_out_trim_handle->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_trim_handle, this, true));
        }
 
        set_colors ();
 
        setup_waveform_visibility ();
-       setup_waveform_shape ();
-       setup_waveform_scale ();
+
+       if (frame_handle_start) {
+               frame_handle_start->raise_to_top ();
+       }
+       if (frame_handle_end) {
+               frame_handle_end->raise_to_top ();
+       }
 
        /* XXX sync mark drag? */
 }
@@ -231,10 +248,6 @@ AudioRegionView::~AudioRegionView ()
 
        RegionViewGoingAway (this); /* EMIT_SIGNAL */
 
-       for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
-               gnome_canvas_waveview_cache_destroy (*cache);
-       }
-
        for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
                delete *i;
        }
@@ -298,24 +311,26 @@ AudioRegionView::fade_out_changed ()
 void
 AudioRegionView::fade_in_active_changed ()
 {
-       if (audio_region()->fade_in_active()) {
-               fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                          // FIXME make a themeable colour
-               fade_in_shape->property_width_pixels() = 1;
-       } else {
-               fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                          // FIXME make a themeable colour
-               fade_in_shape->property_width_pixels() = 1;
+       if (start_xfade_rect) {
+               if (audio_region()->fade_in_active()) {
+                       start_xfade_rect->set_fill (false);
+               } else {
+                       start_xfade_rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_InactiveCrossfade());
+                       start_xfade_rect->set_fill (true);
+               }
        }
 }
 
 void
 AudioRegionView::fade_out_active_changed ()
 {
-       if (audio_region()->fade_out_active()) {
-               fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                         // FIXME make a themeable colour
-               fade_out_shape->property_width_pixels() = 1;
-       } else {
-               fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                         // FIXME make a themeable colour
-               fade_out_shape->property_width_pixels() = 1;
+       if (end_xfade_rect) {
+               if (audio_region()->fade_out_active()) {
+                       end_xfade_rect->set_fill (false);
+               } else {        
+                       end_xfade_rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_InactiveCrossfade());
+                       end_xfade_rect->set_fill (true);
+               }
        }
 }
 
@@ -323,11 +338,8 @@ AudioRegionView::fade_out_active_changed ()
 void
 AudioRegionView::region_scale_amplitude_changed ()
 {
-       ENSURE_GUI_THREAD (*this, &AudioRegionView::region_scale_amplitude_changed)
-
        for (uint32_t n = 0; n < waves.size(); ++n) {
-               // force a reload of the cache
-               waves[n]->property_data_src() = _region.get();
+               waves[n]->gain_changed ();
        }
 }
 
@@ -360,16 +372,16 @@ AudioRegionView::region_resized (const PropertyChange& what_changed)
        interesting_stuff.add (ARDOUR::Properties::length);
 
        if (what_changed.contains (interesting_stuff)) {
-
+               
                for (uint32_t n = 0; n < waves.size(); ++n) {
-                       waves[n]->property_region_start() = _region->start();
+                       waves[n]->region_resized ();
                }
 
                for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
                        if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
 
                                for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
-                                       (*w)->property_region_start() = _region->start();
+                                       (*w)->region_resized ();
                                }
                        }
                }
@@ -394,15 +406,13 @@ AudioRegionView::reset_width_dependent_items (double pixel_width)
        RegionView::reset_width_dependent_items(pixel_width);
        assert(_pixel_width == pixel_width);
 
-       if (fade_in_handle) {
-               if (pixel_width <= 6.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
-                       fade_in_handle->hide();
-                       fade_out_handle->hide();
-               }
-               else {
-                       fade_in_handle->show();
-                       fade_out_handle->show();
-               }
+       if (pixel_width <= 20.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
+               if (fade_in_handle)       { fade_in_handle->hide(); }
+               if (fade_out_handle)      { fade_out_handle->hide(); }
+               if (fade_in_trim_handle)  { fade_in_trim_handle->hide(); }
+               if (fade_out_trim_handle) { fade_out_trim_handle->hide(); }
+               if (start_xfade_rect)     { start_xfade_rect->set_outline (false); }
+               if (end_xfade_rect)       { end_xfade_rect->set_outline (false); }
        }
 
        AnalysisFeatureList analysis_features = _region->transients();
@@ -412,14 +422,15 @@ AudioRegionView::reset_width_dependent_items (double pixel_width)
 
        for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 
-               float x_pos = trackview.editor().frame_to_pixel (*i);
+               float x_pos = trackview.editor().sample_to_pixel (*i);
 
-               ArdourCanvas::Points points;
-               points.push_back(Gnome::Art::Point(x_pos, 2.0)); // first x-coord needs to be a non-normal value
-               points.push_back(Gnome::Art::Point(x_pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
+               (*l).second->set (ArdourCanvas::Duple (x_pos, 2.0),
+                                 ArdourCanvas::Duple (x_pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
 
                (*l).first = *i;
-               (*l).second->property_points() = points;
+
+               (*l).second->set (ArdourCanvas::Duple (x_pos, 2.0),
+                                 ArdourCanvas::Duple (x_pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
        }
 
        reset_fade_shapes ();
@@ -429,30 +440,33 @@ void
 AudioRegionView::region_muted ()
 {
        RegionView::region_muted();
-
-       for (uint32_t n=0; n < waves.size(); ++n) {
-               if (_region->muted()) {
-                       waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
-               } else {
-                       waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
-               }
-       }
+       set_waveform_colors ();
 }
 
 void
 AudioRegionView::setup_fade_handle_positions()
 {
        /* position of fade handle offset from the top of the region view */
-       double const handle_pos = 2;
+       double const handle_pos = 0.0;
 
        if (fade_in_handle) {
-               fade_in_handle->property_y1() = handle_pos;
-               fade_in_handle->property_y2() = handle_pos + handle_size;
+               fade_in_handle->set_y0 (handle_pos);
+               fade_in_handle->set_y1 (handle_pos + handle_size);
        }
 
        if (fade_out_handle) {
-               fade_out_handle->property_y1() = handle_pos;
-               fade_out_handle->property_y2() = handle_pos + handle_size;
+               fade_out_handle->set_y0 (handle_pos);
+               fade_out_handle->set_y1 (handle_pos + handle_size);
+       }
+
+       if (fade_in_trim_handle) {
+               fade_in_trim_handle->set_y0 (_height - handle_size);
+               fade_in_trim_handle->set_y1 (_height);
+       }
+
+       if (fade_out_trim_handle) {
+               fade_out_trim_handle->set_y0 (_height - handle_size );
+               fade_out_trim_handle->set_y1 (_height);
        }
 }
 
@@ -474,8 +488,8 @@ AudioRegionView::set_height (gdouble height)
 
                gdouble yoff = n * (ht + 1);
 
-               waves[n]->property_height() = ht;
-               waves[n]->property_y() = yoff + 2;
+               waves[n]->set_height (ht);
+               waves[n]->set_y_position (yoff + 2);
        }
 
        if (gain_line) {
@@ -496,26 +510,29 @@ AudioRegionView::set_height (gdouble height)
 
        for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 
-               float pos_x = trackview.editor().frame_to_pixel((*l).first);
-
-               ArdourCanvas::Points points;
+               float pos_x = trackview.editor().sample_to_pixel((*l).first);
 
-               points.push_back(Gnome::Art::Point(pos_x, 2.0)); // first x-coord needs to be a non-normal value
-               points.push_back(Gnome::Art::Point(pos_x, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
-
-               (*l).second->property_points() = points;
+               if (height >= NAME_HIGHLIGHT_THRESH) {
+                       (*l).second->set (ArdourCanvas::Duple (pos_x, 2.0),
+                                         ArdourCanvas::Duple (pos_x, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
+               } else {
+                       (*l).second->set (ArdourCanvas::Duple (pos_x, 2.0),
+                                         ArdourCanvas::Duple (pos_x, _height - 1));
+               }
        }
 
-       if (name_pixbuf) {
-               name_pixbuf->raise_to_top();
+       if (name_text) {
+               name_text->raise_to_top();
        }
+
+       setup_fade_handle_positions();
 }
 
 void
 AudioRegionView::reset_fade_shapes ()
 {
-       reset_fade_in_shape ();
-       reset_fade_out_shape ();
+       if (!trim_fade_in_drag_active) { reset_fade_in_shape (); }
+       if (!trim_fade_out_drag_active) { reset_fade_out_shape (); }
 }
 
 void
@@ -525,84 +542,76 @@ AudioRegionView::reset_fade_in_shape ()
 }
 
 void
-AudioRegionView::reset_fade_in_shape_width (boost::shared_ptr<AudioRegion> ar, framecnt_t width)
+AudioRegionView::reset_fade_in_shape_width (boost::shared_ptr<AudioRegion> ar, framecnt_t width, bool drag_active)
 {
+       trim_fade_in_drag_active = drag_active;
        if (fade_in_handle == 0) {
                return;
        }
 
-       fade_in_handle->show ();
-
        /* smallest size for a fade is 64 frames */
 
        width = std::max ((framecnt_t) 64, width);
 
-       Points* points;
-
        /* round here to prevent little visual glitches with sub-pixel placement */
-       double const pwidth = rint (width / samples_per_unit);
-       uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
-       double h;
-
-       double const handle_center = pwidth;
+       double const pwidth = rint (width / samples_per_pixel);
+       double const handle_left = pwidth;
 
        /* Put the fade in handle so that its left side is at the end-of-fade line */
-       fade_in_handle->property_x1() = handle_center;
-       fade_in_handle->property_x2() = handle_center + handle_size;
+       fade_in_handle->set_x0 (handle_left);
+       fade_in_handle->set_x1 (handle_left + handle_size);
+
+       if (fade_in_trim_handle) {
+               fade_in_trim_handle->set_x0 (0);
+               fade_in_trim_handle->set_x1 (handle_size);
+       }
+
+       if (fade_in_handle->visible()) {
+               //see comment for drag_start
+               entered(false);
+       }
 
        if (pwidth < 5) {
                hide_start_xfade();
-               fade_in_shape->hide();
                return;
        }
 
-       if (trackview.session()->config.get_show_region_fades()) {
-               fade_in_shape->show();
+       if (!trackview.session()->config.get_show_region_fades()) {
+               hide_start_xfade ();
+               return;
        }
-
-       float curve[npoints];
-       audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
-
-       points = get_canvas_points ("fade in shape", npoints + 3);
+       
+       double effective_height;
 
        if (_height >= NAME_HIGHLIGHT_THRESH) {
-               h = _height - NAME_HIGHLIGHT_SIZE - 2;
+               effective_height = _height - NAME_HIGHLIGHT_SIZE;
        } else {
-               h = _height - 2;
+               effective_height = _height;
        }
 
        /* points *MUST* be in anti-clockwise order */
 
-       uint32_t pi, pc;
-       double xdelta = pwidth/npoints;
-
-       for (pi = 0, pc = 0; pc < npoints; ++pc) {
-               (*points)[pi].set_x(1 + (pc * xdelta));
-               (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
-       }
-
-       /* fold back */
+       Points points;
+       Points::size_type pi;
+       boost::shared_ptr<const Evoral::ControlList> list (audio_region()->fade_in());
+       Evoral::ControlList::const_iterator x;
+       double length = list->length();
 
-       (*points)[pi].set_x(pwidth);
-       (*points)[pi++].set_y(2);
+       points.assign (list->size(), Duple());
 
-       (*points)[pi].set_x(1);
-       (*points)[pi++].set_y(2);
-
-       /* connect the dots ... */
-
-       (*points)[pi] = (*points)[0];
+       for (x = list->begin(), pi = 0; x != list->end(); ++x, ++pi) {
+               points[pi].x = 1.0 + (pwidth * ((*x)->when/length));
+               points[pi].y = effective_height - ((*x)->value * effective_height);
+       }
 
-       fade_in_shape->property_points() = *points;
-       delete points;
+       /* draw the line */
 
-       redraw_start_xfade_to ( ar, width);
+       redraw_start_xfade_to (ar, width, points, effective_height, handle_left);
 
        /* ensure trim handle stays on top */
        if (frame_handle_start) {
                frame_handle_start->raise_to_top();
        }
-
 }
 
 void
@@ -612,88 +621,82 @@ AudioRegionView::reset_fade_out_shape ()
 }
 
 void
-AudioRegionView::reset_fade_out_shape_width (boost::shared_ptr<AudioRegion> ar, framecnt_t width)
+AudioRegionView::reset_fade_out_shape_width (boost::shared_ptr<AudioRegion> ar, framecnt_t width, bool drag_active)
 {
+       trim_fade_out_drag_active = drag_active;
        if (fade_out_handle == 0) {
                return;
        }
 
-       fade_out_handle->show ();
-
        /* smallest size for a fade is 64 frames */
 
        width = std::max ((framecnt_t) 64, width);
 
-       Points* points;
+       double const pwidth = rint(trackview.editor().sample_to_pixel (width));
 
-       /* round here to prevent little visual glitches with sub-pixel placement */
-       double const pwidth = rint (width / samples_per_unit);
-       uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
-       double h;
+       /* the right edge should be right on the region frame is the pixel
+        * width is zero. Hence the additional + 1.0 at the end.
+        */
 
-       double const handle_center = (_region->length() - width) / samples_per_unit;
+       double const handle_right = rint(trackview.editor().sample_to_pixel (_region->length()) + TimeAxisViewItem::RIGHT_EDGE_SHIFT - pwidth);
+       double const trim_handle_right = rint(trackview.editor().sample_to_pixel (_region->length()) + TimeAxisViewItem::RIGHT_EDGE_SHIFT);
 
        /* Put the fade out handle so that its right side is at the end-of-fade line;
-        * it's `one out' for precise pixel accuracy.
         */
-       fade_out_handle->property_x1() = handle_center - 5;
-       fade_out_handle->property_x2() = handle_center + 1;
+       fade_out_handle->set_x0 (1 + handle_right - handle_size);
+       fade_out_handle->set_x1 (1 + handle_right);
+       if (fade_out_trim_handle) {
+               fade_out_trim_handle->set_x0 (1 + trim_handle_right - handle_size);
+               fade_out_trim_handle->set_x1 (1 + trim_handle_right);
+       }
 
+       if (fade_out_handle->visible()) {
+               //see comment for drag_start
+               entered(false);
+       }
        /* don't show shape if its too small */
 
        if (pwidth < 5) {
                hide_end_xfade();
-               fade_out_shape->hide();
                return;
        }
 
-       if (trackview.session()->config.get_show_region_fades()) {
-               fade_out_shape->show();
+       if (!trackview.session()->config.get_show_region_fades()) {
+               hide_end_xfade();
+               return;
        }
 
-       float curve[npoints];
-       audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
+       double effective_height;
 
        if (_height >= NAME_HIGHLIGHT_THRESH) {
-               h = _height - NAME_HIGHLIGHT_SIZE - 2;
+               effective_height = _height - NAME_HIGHLIGHT_SIZE;
        } else {
-               h = _height - 2;
+               effective_height = _height;
        }
 
        /* points *MUST* be in anti-clockwise order */
+       
+       Points points;
+       Points::size_type pi;
+       boost::shared_ptr<const Evoral::ControlList> list (audio_region()->fade_out());
+       Evoral::ControlList::const_iterator x;
+       double length = list->length();
 
-       points = get_canvas_points ("fade out shape", npoints + 3);
-
-       uint32_t pi, pc;
-       double xdelta = pwidth/npoints;
+       points.assign (list->size(), Duple());
 
-       for (pi = 0, pc = 0; pc < npoints; ++pc) {
-               (*points)[pi].set_x(_pixel_width - pwidth + (pc * xdelta));
-               (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
+       for (x = list->begin(), pi = 0; x != list->end(); ++x, ++pi) {
+               points[pi].x = 1.0 + _pixel_width - pwidth + (pwidth * ((*x)->when/length));
+               points[pi].y = effective_height - ((*x)->value * effective_height);
        }
 
-       /* fold back */
-
-       (*points)[pi].set_x(_pixel_width);
-       (*points)[pi++].set_y(h);
+       /* draw the line */
 
-       (*points)[pi].set_x(_pixel_width);
-       (*points)[pi++].set_y(2);
-
-       /* connect the dots ... */
-
-       (*points)[pi] = (*points)[0];
-
-       fade_out_shape->property_points() = *points;
-       delete points;
-
-       redraw_end_xfade_to (ar, width);
+       redraw_end_xfade_to (ar, width, points, effective_height, handle_right, pwidth);
 
        /* ensure trim handle stays on top */
        if (frame_handle_end) {
                frame_handle_end->raise_to_top();
        }
-
 }
 
 framepos_t
@@ -710,39 +713,274 @@ AudioRegionView::get_fade_out_shape_width ()
 
 
 void
-AudioRegionView::set_samples_per_unit (gdouble spu)
+AudioRegionView::redraw_start_xfade ()
 {
-       RegionView::set_samples_per_unit (spu);
+       boost::shared_ptr<AudioRegion> ar (audio_region());
 
-       if (Config->get_show_waveforms ()) {
-               for (uint32_t n = 0; n < waves.size(); ++n) {
-                       waves[n]->property_samples_per_unit() = spu;
+       if (!ar->fade_in() || ar->fade_in()->empty()) {
+               return;
+       }
+
+       show_start_xfade();
+       reset_fade_in_shape_width (ar, ar->fade_in()->back()->when);
+}
+
+void
+AudioRegionView::redraw_start_xfade_to (boost::shared_ptr<AudioRegion> ar, framecnt_t /*width*/, Points& points, double effective_height,
+                                       double rect_width)
+{
+       if (points.size() < 2) {
+               return;
+       }
+
+       if (!start_xfade_curve) {
+               start_xfade_curve = new ArdourCanvas::XFadeCurve (group, ArdourCanvas::XFadeCurve::Start);
+               CANVAS_DEBUG_NAME (start_xfade_curve, string_compose ("xfade start out line for %1", region()->name()));
+               start_xfade_curve->set_fill_color (ARDOUR_UI::config()->get_canvasvar_ActiveCrossfade());
+               start_xfade_curve->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+               start_xfade_curve->set_ignore_events (true);
+       }
+       if (!start_xfade_rect) {
+               start_xfade_rect = new ArdourCanvas::Rectangle (group);
+               CANVAS_DEBUG_NAME (start_xfade_rect, string_compose ("xfade start rect for %1", region()->name()));
+               start_xfade_rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+               start_xfade_rect->set_fill (false);
+               start_xfade_rect->set_outline (false);
+               start_xfade_rect->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::RIGHT));
+               start_xfade_rect->set_outline_width (0.5);
+               start_xfade_rect->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_start_xfade_event), start_xfade_rect, this));
+               start_xfade_rect->set_data ("regionview", this);
+       }
+
+       start_xfade_rect->set (ArdourCanvas::Rect (0.0, 0.0, rect_width, effective_height));
+
+       /* fade out line */
+
+       boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_in ();
+       Points ipoints;
+       Points::size_type npoints;
+
+       if (!inverse) {
+
+               /* there is no explicit inverse fade in curve, so take the
+                * regular fade in curve given to use as "points" (already a
+                * set of coordinates), and convert to the inverse shape.
+                */
+
+               npoints = points.size();
+               ipoints.assign (npoints, Duple());
+
+               for (Points::size_type i = 0, pci = 0; i < npoints; ++i, ++pci) {
+                       ArdourCanvas::Duple &p (ipoints[pci]);
+                       /* leave x-axis alone but invert with respect to y-axis */
+                       p.y = effective_height - points[pci].y;
+               }
+
+       } else {
+
+               /* there is an explicit inverse fade in curve. Grab the points
+                  and convert them into coordinates for the inverse fade in
+                  line.
+               */
+
+               npoints = inverse->size();
+               ipoints.assign (npoints, Duple());
+               
+               Evoral::ControlList::const_iterator x;
+               Points::size_type pi;
+               double length = inverse->length();
+
+               for (x = inverse->begin(), pi = 0; x != inverse->end(); ++x, ++pi) {
+                       ArdourCanvas::Duple& p (ipoints[pi]);
+                       p.x = 1.0 + (rect_width * ((*x)->when/length));
+                       p.y = effective_height - ((*x)->value * effective_height);
                }
        }
 
-       if (gain_line) {
-               gain_line->reset ();
+       start_xfade_curve->set_inout (points, ipoints);
+
+       show_start_xfade();
+}
+
+void
+AudioRegionView::redraw_end_xfade ()
+{
+       boost::shared_ptr<AudioRegion> ar (audio_region());
+
+       if (!ar->fade_out() || ar->fade_out()->empty()) {
+               return;
        }
 
-       reset_fade_shapes ();
+       show_end_xfade();
+       
+       reset_fade_out_shape_width (ar, ar->fade_out()->back()->when);
 }
 
 void
-AudioRegionView::set_amplitude_above_axis (gdouble spp)
+AudioRegionView::redraw_end_xfade_to (boost::shared_ptr<AudioRegion> ar, framecnt_t width, Points& points, double effective_height,
+                                     double rect_edge, double rect_width)
 {
-       for (uint32_t n=0; n < waves.size(); ++n) {
-               waves[n]->property_amplitude_above_axis() = spp;
+       if (points.size() < 2) {
+               return;
+       }
+
+       if (!end_xfade_curve) {
+               end_xfade_curve = new ArdourCanvas::XFadeCurve (group, ArdourCanvas::XFadeCurve::End);
+               CANVAS_DEBUG_NAME (end_xfade_curve, string_compose ("xfade end out line for %1", region()->name()));
+               end_xfade_curve->set_fill_color (ARDOUR_UI::config()->get_canvasvar_ActiveCrossfade());
+               end_xfade_curve->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+               end_xfade_curve->set_ignore_events (true);
+       }
+
+       if (!end_xfade_rect) {
+               end_xfade_rect = new ArdourCanvas::Rectangle (group);
+               CANVAS_DEBUG_NAME (end_xfade_rect, string_compose ("xfade end rect for %1", region()->name()));
+               end_xfade_rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+               end_xfade_rect->set_fill (false);
+               end_xfade_rect->set_outline (false);
+               end_xfade_rect->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::LEFT));
+               end_xfade_rect->set_outline_width (0.5);
+               end_xfade_rect->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_end_xfade_event), end_xfade_rect, this));
+               end_xfade_rect->set_data ("regionview", this);
+       }
+
+       end_xfade_rect->set (ArdourCanvas::Rect (rect_edge, 0.0, rect_edge + rect_width + TimeAxisViewItem::RIGHT_EDGE_SHIFT, effective_height));
+
+       /* fade in line */
+
+       boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_out ();
+       Points ipoints;
+       Points::size_type npoints;
+
+       if (!inverse) {
+
+               /* there is no explicit inverse fade out curve, so take the
+                * regular fade out curve given to use as "points" (already a
+                * set of coordinates), and convert to the inverse shape.
+                */
+
+               npoints = points.size();
+               ipoints.assign (npoints, Duple());
+
+               Points::size_type pci;
+
+               for (pci = 0; pci < npoints; ++pci) {
+                       ArdourCanvas::Duple &p (ipoints[pci]);
+                       p.y = effective_height - points[pci].y;
+               }
+
+       } else {
+
+               /* there is an explicit inverse fade out curve. Grab the points
+                  and convert them into coordinates for the inverse fade out
+                  line.
+               */
+
+               npoints = inverse->size();
+               ipoints.assign (npoints, Duple());
+               
+               const double rend = trackview.editor().sample_to_pixel (_region->length() - width);
+               
+               Evoral::ControlList::const_iterator x;
+               Points::size_type i;
+               Points::size_type pi;
+               double length = inverse->length();
+
+               for (x = inverse->begin(), i = 0, pi = 0; x != inverse->end(); ++x, ++pi, ++i) {
+                       ArdourCanvas::Duple& p (ipoints[pi]);
+                       p.x = 1.0 + (rect_width * ((*x)->when/length)) + rend;
+                       p.y = effective_height - ((*x)->value * effective_height);
+               }
+       }
+
+       end_xfade_curve->set_inout (ipoints, points);
+
+       show_end_xfade();
+}
+
+void
+AudioRegionView::hide_xfades ()
+{
+       hide_start_xfade ();
+       hide_end_xfade ();
+}
+
+void
+AudioRegionView::hide_start_xfade ()
+{
+       if (start_xfade_curve) {
+               start_xfade_curve->hide();
+       }
+       if (start_xfade_rect) {
+               start_xfade_rect->hide ();
+       }
+
+       _start_xfade_visible = false;
+}
+
+void
+AudioRegionView::hide_end_xfade ()
+{
+       if (end_xfade_curve) {
+               end_xfade_curve->hide();
+       }
+       if (end_xfade_rect) {
+               end_xfade_rect->hide ();
+       }
+
+       _end_xfade_visible = false;
+}
+
+void
+AudioRegionView::show_start_xfade ()
+{
+       if (start_xfade_curve) {
+               start_xfade_curve->show();
+       }
+       if (start_xfade_rect) {
+               start_xfade_rect->show ();
        }
+
+       _start_xfade_visible = true;
+}
+
+void
+AudioRegionView::show_end_xfade ()
+{
+       if (end_xfade_curve) {
+               end_xfade_curve->show();
+       }
+       if (end_xfade_rect) {
+               end_xfade_rect->show ();
+       }
+
+       _end_xfade_visible = true;
 }
 
 void
-AudioRegionView::compute_colors (Gdk::Color const & basic_color)
+AudioRegionView::set_samples_per_pixel (gdouble fpp)
 {
-       RegionView::compute_colors (basic_color);
+       RegionView::set_samples_per_pixel (fpp);
+
+       if (Config->get_show_waveforms ()) {
+               for (uint32_t n = 0; n < waves.size(); ++n) {
+                       waves[n]->set_samples_per_pixel (fpp);
+               }
+       }
+
+       if (gain_line) {
+               gain_line->reset ();
+       }
 
-       /* gain color computed in envelope_active_changed() */
+       reset_fade_shapes ();
+}
 
-       fade_color = UINT_RGBA_CHANGE_A (fill_color, 120);
+void
+AudioRegionView::set_amplitude_above_axis (gdouble a)
+{
+       for (uint32_t n=0; n < waves.size(); ++n) {
+               waves[n]->set_amplitude_above_axis (a);
+       }
 }
 
 void
@@ -751,18 +989,27 @@ AudioRegionView::set_colors ()
        RegionView::set_colors();
 
        if (gain_line) {
-               gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
+               gain_line->set_line_color (audio_region()->envelope_active() ? 
+                                          ARDOUR_UI::config()->get_canvasvar_GainLine() : 
+                                          ARDOUR_UI::config()->get_canvasvar_GainLineInactive());
        }
 
-       for (uint32_t n=0; n < waves.size(); ++n) {
-               if (_region->muted()) {
-                       waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
-               } else {
-                       waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
-               }
+       set_waveform_colors ();
 
-               waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
-               waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
+       if (start_xfade_curve) {
+               start_xfade_curve->set_fill_color (ARDOUR_UI::config()->get_canvasvar_ActiveCrossfade());
+               start_xfade_curve->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+       }
+       if (end_xfade_curve) {
+               end_xfade_curve->set_fill_color (ARDOUR_UI::config()->get_canvasvar_ActiveCrossfade());
+               end_xfade_curve->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+       }
+
+       if (start_xfade_rect) {
+               start_xfade_rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
+       }
+       if (end_xfade_rect) {
+               end_xfade_rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_CrossfadeLine());
        }
 }
 
@@ -774,7 +1021,8 @@ AudioRegionView::setup_waveform_visibility ()
                        /* make sure the zoom level is correct, since we don't update
                           this when waveforms are hidden.
                        */
-                       waves[n]->property_samples_per_unit() = samples_per_unit;
+                       // CAIROCANVAS
+                       // waves[n]->set_samples_per_pixel (_samples_per_pixel);
                        waves[n]->show();
                }
        } else {
@@ -848,8 +1096,6 @@ AudioRegionView::create_waves ()
                        break;
                }
 
-               wave_caches.push_back (WaveView::create_cache ());
-
                // cerr << "\tchannel " << n << endl;
 
                if (wait_for_data) {
@@ -888,35 +1134,31 @@ AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
 
        gdouble yoff = which * ht;
 
-       WaveView *wave = new WaveView(*group);
-
-       wave->property_data_src() = (gpointer) _region.get();
-       wave->property_cache() =  wave_caches[which];
-       wave->property_cache_updater() = true;
-       wave->property_channel() =  which;
-       wave->property_length_function() = (gpointer) region_length_from_c;
-       wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
-       wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
-       wave->property_x() =  0.0;
-       wave->property_y() =  yoff;
-       wave->property_height() =  (double) ht;
-       wave->property_samples_per_unit() =  samples_per_unit;
-       wave->property_amplitude_above_axis() =  _amplitude_above_axis;
-
-       if (_recregion) {
-               wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
-               wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
-       } else {
-               wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
-               wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
+       WaveView *wave = new WaveView (group, audio_region ());
+       CANVAS_DEBUG_NAME (wave, string_compose ("wave view for chn %1 of %2", which, get_item_name()));
+       
+       wave->set_channel (which);
+       wave->set_y_position (yoff);
+       wave->set_height (ht);
+       wave->set_samples_per_pixel (samples_per_pixel);
+       wave->set_show_zero_line (true);
+       wave->set_clip_level (Config->get_waveform_clip_level ());
+
+       wave->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_wave_view_event), wave, this));
+       
+       switch (Config->get_waveform_shape()) {
+       case Rectified:
+               wave->set_shape (WaveView::Rectified);
+               break;
+       default:
+               wave->set_shape (WaveView::Normal);
        }
+               
+       wave->set_logscaled (Config->get_waveform_scale() == Logarithmic);
 
-       wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
-       wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
-       wave->property_zero_line() = true;
-       wave->property_region_start() = _region->start();
-       wave->property_rectified() = Config->get_waveform_shape() == Rectified;
-       wave->property_logscaled() = Config->get_waveform_scale() == Logarithmic;
+       vector<ArdourCanvas::WaveView*> v;
+       v.push_back (wave);
+       set_some_waveform_colors (v);
 
        if (!Config->get_show_waveforms ()) {
                wave->hide();
@@ -963,7 +1205,7 @@ AudioRegionView::peaks_ready_handler (uint32_t which)
 }
 
 void
-AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
+AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev, bool with_guard_points)
 {
        if (!gain_line) {
                return;
@@ -978,9 +1220,9 @@ AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
        x = ev->button.x;
        y = ev->button.y;
 
-       item->w2i (x, y);
+       item->canvas_to_item (x, y);
 
-       framepos_t fx = trackview.editor().pixel_to_frame (x);
+       framepos_t fx = trackview.editor().pixel_to_sample (x);
 
        if (fx > _region->length()) {
                return;
@@ -1008,7 +1250,7 @@ AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
                trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
        }
 
-       audio_region()->envelope()->add (fx, y);
+       audio_region()->envelope()->add (fx, y, with_guard_points);
 
        XMLNode &after = audio_region()->envelope()->get_state();
        trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
@@ -1016,36 +1258,19 @@ AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
 }
 
 void
-AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
+AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent/*ev*/)
 {
        ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
        audio_region()->envelope()->erase (cp->model());
 }
 
-void
-AudioRegionView::setup_waveform_shape ()
-{
-       for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
-               (*wave)->property_rectified() = Config->get_waveform_shape() == Rectified;
-       }
-}
-
-void
-AudioRegionView::setup_waveform_scale ()
-{
-       for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
-               (*wave)->property_logscaled() = Config->get_waveform_scale() == Logarithmic;
-       }
-}
-
-
-GhostRegion*
-AudioRegionView::add_ghost (TimeAxisView& tv)
+GhostRegion*
+AudioRegionView::add_ghost (TimeAxisView& tv)
 {
        RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
        assert(rtv);
 
-       double unit_position = _region->position () / samples_per_unit;
+       double unit_position = _region->position () / samples_per_pixel;
        AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
        uint32_t nchans;
 
@@ -1057,26 +1282,18 @@ AudioRegionView::add_ghost (TimeAxisView& tv)
                        break;
                }
 
-               WaveView *wave = new WaveView(*ghost->group);
+               WaveView *wave = new WaveView (ghost->group, audio_region());
+               CANVAS_DEBUG_NAME (wave, string_compose ("ghost wave for %1", get_item_name()));
 
-               wave->property_data_src() = _region.get();
-               wave->property_cache() =  wave_caches[n];
-               wave->property_cache_updater() = false;
-               wave->property_channel() = n;
-               wave->property_length_function() = (gpointer)region_length_from_c;
-               wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
-               wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
-               wave->property_x() =  0.0;
-               wave->property_samples_per_unit() =  samples_per_unit;
-               wave->property_amplitude_above_axis() =  _amplitude_above_axis;
-
-               wave->property_region_start() = _region->start();
+               wave->set_channel (n);
+               wave->set_samples_per_pixel (samples_per_pixel);
+               wave->set_amplitude_above_axis (_amplitude_above_axis);
 
                ghost->waves.push_back(wave);
        }
 
        ghost->set_height ();
-       ghost->set_duration (_region->length() / samples_per_unit);
+       ghost->set_duration (_region->length() / samples_per_pixel);
        ghost->set_colors();
        ghosts.push_back (ghost);
 
@@ -1089,15 +1306,44 @@ AudioRegionView::entered (bool internal_editing)
        trackview.editor().set_current_trimmable (_region);
        trackview.editor().set_current_movable (_region);
        
-       if (gain_line && trackview.editor().current_mouse_mode() == Editing::MouseGain) {
+       if (gain_line) {
+               /* these may or may not be visible depending on mouse mode */
                gain_line->add_visibility (AutomationLine::ControlPoints);
        }
 
-       if (fade_in_handle && !internal_editing) {
-               fade_in_handle->property_outline_color_rgba() = RGBA_TO_UINT (0, 0, 0, 255);
-               fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
-               fade_out_handle->property_outline_color_rgba() = RGBA_TO_UINT (0, 0, 0, 255);
-               fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
+       if (!internal_editing &&  ( trackview.editor().current_mouse_mode() == Editing::MouseObject ) ) {
+               if (start_xfade_rect) {
+                       start_xfade_rect->set_outline (true);
+               }
+               if (end_xfade_rect) {
+                       end_xfade_rect->set_outline (true);
+               }
+               if (fade_in_handle) {
+                       fade_in_handle->show ();
+                       fade_in_handle->raise_to_top ();
+               }
+               if (fade_out_handle) {
+                       fade_out_handle->show ();
+                       fade_out_handle->raise_to_top ();
+               }
+               if (fade_in_trim_handle) {
+                       boost::shared_ptr<AudioRegion> ar (audio_region());
+                       if (!ar->locked() && (ar->fade_in()->back()->when > 64 || (ar->can_trim() & Trimmable::FrontTrimEarlier))) {
+                               fade_in_trim_handle->show ();
+                               fade_in_trim_handle->raise_to_top ();
+                       } else {
+                               fade_in_trim_handle->hide ();
+                       }
+               }
+               if (fade_out_trim_handle) {
+                       boost::shared_ptr<AudioRegion> ar (audio_region());
+                       if (!ar->locked() && (ar->fade_out()->back()->when > 64 || (ar->can_trim() & Trimmable::EndTrimLater))) {
+                               fade_out_trim_handle->show ();
+                               fade_out_trim_handle->raise_to_top ();
+                       } else {
+                               fade_out_trim_handle->hide ();
+                       }
+               }
        }
 }
 
@@ -1107,50 +1353,29 @@ AudioRegionView::exited ()
        trackview.editor().set_current_trimmable (boost::shared_ptr<Trimmable>());
        trackview.editor().set_current_movable (boost::shared_ptr<Movable>());
 
-       if (gain_line && trackview.editor().current_mouse_mode() == Editing::MouseGain) {
+       if (gain_line) {
                gain_line->remove_visibility (AutomationLine::ControlPoints);
        }
 
-       if (fade_in_handle) {
-               fade_in_handle->property_outline_color_rgba() = RGBA_TO_UINT (0, 0, 0, 0);
-               fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
-               fade_out_handle->property_outline_color_rgba() = RGBA_TO_UINT (0, 0, 0, 0);
-               fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
-       }
+       if (fade_in_handle)       { fade_in_handle->hide(); }
+       if (fade_out_handle)      { fade_out_handle->hide(); }
+       if (fade_in_trim_handle)  { fade_in_trim_handle->hide(); }
+       if (fade_out_trim_handle) { fade_out_trim_handle->hide(); }
+       if (start_xfade_rect)     { start_xfade_rect->set_outline (false); }
+       if (end_xfade_rect)       { end_xfade_rect->set_outline (false); }
 }
 
 void
 AudioRegionView::envelope_active_changed ()
 {
        if (gain_line) {
-               gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
+               gain_line->set_line_color (audio_region()->envelope_active() ? 
+                                          ARDOUR_UI::config()->get_canvasvar_GainLine() : 
+                                          ARDOUR_UI::config()->get_canvasvar_GainLineInactive());
+               update_envelope_visibility ();
        }
 }
 
-void
-AudioRegionView::set_waveview_data_src()
-{
-       AudioGhostRegion* agr;
-       double unit_length= _region->length() / samples_per_unit;
-
-       for (uint32_t n = 0; n < waves.size(); ++n) {
-               // TODO: something else to let it know the channel
-               waves[n]->property_data_src() = _region.get();
-       }
-
-       for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
-
-               (*i)->set_duration (unit_length);
-
-               if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
-                       for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
-                               (*w)->property_data_src() = _region.get();
-                       }
-               }
-       }
-
-}
-
 void
 AudioRegionView::color_handler ()
 {
@@ -1167,87 +1392,97 @@ AudioRegionView::color_handler ()
 }
 
 void
-AudioRegionView::set_frame_color ()
+AudioRegionView::set_waveform_colors ()
 {
-       if (!frame) {
-               return;
-       }
-
-       if (_region->opaque()) {
-               fill_opacity = 130;
-       } else {
-               fill_opacity = 0;
-       }
-
-       TimeAxisViewItem::set_frame_color ();
+       set_some_waveform_colors (waves);
+}
 
-        uint32_t wc;
-        uint32_t fc;
+void
+AudioRegionView::set_some_waveform_colors (vector<ArdourCanvas::WaveView*>& waves_to_color)
+{
+       ArdourCanvas::Color fill;
+       ArdourCanvas::Color outline;
+       ArdourCanvas::Color clip = ARDOUR_UI::config()->get_canvasvar_WaveFormClip();
+       ArdourCanvas::Color zero = ARDOUR_UI::config()->get_canvasvar_ZeroLine();
 
        if (_selected) {
-                if (_region->muted()) {
-                        wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
-                } else {
-                        wc = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
-                }
-                fc = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
+               if (_region->muted()) {
+                       /* hide outline with zero alpha */
+                       outline = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->get_canvasvar_SelectedWaveForm(), 0);
+                       fill = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->get_canvasvar_SelectedWaveFormFill(), MUTED_ALPHA);
+               } else {
+                       outline = ARDOUR_UI::config()->get_canvasvar_SelectedWaveForm();
+                       fill = ARDOUR_UI::config()->get_canvasvar_SelectedWaveFormFill();
+
+                       if (ARDOUR_UI::config()->get_color_regions_using_track_color()) {
+                               /* just use a slightly transparent version of the selected
+                                * color so that some of the track color bleeds through
+                                */
+                               fill = UINT_RGBA_CHANGE_A (fill, 217);
+                       }
+               }
        } else {
                if (_recregion) {
-                        if (_region->muted()) {
-                                wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
-                        } else {
-                                wc = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
-                        }
-                        fc = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
+                       outline = ARDOUR_UI::config()->get_canvasvar_RecWaveForm();
+                       fill = ARDOUR_UI::config()->get_canvasvar_RecWaveFormFill();
                } else {
-                        if (_region->muted()) {
-                                wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
-                        } else {
-                                wc = ARDOUR_UI::config()->canvasvar_WaveForm.get();
-                        }
-                        fc = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
+                       if (_region->muted()) {
+                               /* hide outline with zero alpha */
+                               outline = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->get_canvasvar_WaveForm(), 0); 
+                               fill = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->get_canvasvar_WaveFormFill(), MUTED_ALPHA);
+                       } else {
+                               outline = ARDOUR_UI::config()->get_canvasvar_WaveForm();
+                               fill = ARDOUR_UI::config()->get_canvasvar_WaveFormFill();
+
+                               if (ARDOUR_UI::config()->get_color_regions_using_track_color()) {
+                                       /* just use a slightly transparent version of the selected
+                                        * color so that some of the track color bleeds through
+                                        */
+                                       fill = UINT_RGBA_CHANGE_A (fill, 217);
+                               }
+                       }
                }
        }
 
-        for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
-                if (_region->muted()) {
-                        (*w)->property_wave_color() = wc;
-                } else {
-                        (*w)->property_wave_color() = wc;
-                        (*w)->property_fill_color() = fc;
-                }
-        }
+        for (vector<ArdourCanvas::WaveView*>::iterator w = waves_to_color.begin(); w != waves_to_color.end(); ++w) {
+               (*w)->set_fill_color (fill);
+               (*w)->set_outline_color (outline);
+               (*w)->set_clip_color (clip);
+               (*w)->set_zero_color (zero);
+       }
+}
+
+void
+AudioRegionView::set_frame_color ()
+{
+       if (!frame) {
+               return;
+       }
+
+       RegionView::set_frame_color ();
+
+       set_waveform_colors ();
 }
 
 void
 AudioRegionView::set_fade_visibility (bool yn)
 {
        if (yn) {
-               if (fade_in_shape) {
-                       fade_in_shape->show();
-               }
-               if (fade_out_shape) {
-                       fade_out_shape->show ();
-               }
-               if (fade_in_handle) {
-                       fade_in_handle->show ();
-               }
-               if (fade_out_handle) {
-                       fade_out_handle->show ();
-               }
-       } else {
-               if (fade_in_shape) {
-                       fade_in_shape->hide();
-               }
-               if (fade_out_shape) {
-                       fade_out_shape->hide ();
-               }
-               if (fade_in_handle) {
-                       fade_in_handle->hide ();
-               }
-               if (fade_out_handle) {
-                       fade_out_handle->hide ();
-               }
+               if (start_xfade_curve)    { start_xfade_curve->show (); }
+               if (end_xfade_curve)      { end_xfade_curve->show (); }
+               if (start_xfade_rect)     { start_xfade_rect->show (); }
+               if (end_xfade_rect)       { end_xfade_rect->show (); }
+               } else {
+               if (start_xfade_curve)    { start_xfade_curve->hide(); }
+               if (end_xfade_curve)      { end_xfade_curve->hide(); }
+               if (fade_in_handle)       { fade_in_handle->hide(); }
+               if (fade_out_handle)      { fade_out_handle->hide(); }
+               if (fade_in_trim_handle)  { fade_in_trim_handle->hide(); }
+               if (fade_out_trim_handle) { fade_out_trim_handle->hide(); }
+               if (start_xfade_rect)     { start_xfade_rect->hide (); }
+               if (end_xfade_rect)       { end_xfade_rect->hide (); }
+               if (start_xfade_rect)     { start_xfade_rect->set_outline (false); }
+               if (end_xfade_rect)       { end_xfade_rect->set_outline (false); }
        }
 }
 
@@ -1256,10 +1491,10 @@ AudioRegionView::update_coverage_frames (LayerDisplay d)
 {
        RegionView::update_coverage_frames (d);
 
-       if (fade_in_handle) {
-               fade_in_handle->raise_to_top ();
-               fade_out_handle->raise_to_top ();
-       }
+       if (fade_in_handle)       { fade_in_handle->raise_to_top (); }
+       if (fade_out_handle)      { fade_out_handle->raise_to_top (); }
+       if (fade_in_trim_handle)  { fade_in_trim_handle->raise_to_top (); }
+       if (fade_out_trim_handle) { fade_out_trim_handle->raise_to_top (); }
 }
 
 void
@@ -1270,7 +1505,6 @@ AudioRegionView::show_region_editor ()
        }
 
        editor->present ();
-       editor->set_position (Gtk::WIN_POS_MOUSE);
        editor->show_all();
 }
 
@@ -1281,27 +1515,17 @@ AudioRegionView::transients_changed ()
 
        while (feature_lines.size() < analysis_features.size()) {
 
-               ArdourCanvas::Line* canvas_item = new ArdourCanvas::Line(*group);
-
-               ArdourCanvas::Points points;
-
-               points.push_back(Gnome::Art::Point(-1.0, 2.0)); // first x-coord needs to be a non-normal value
-               points.push_back(Gnome::Art::Point(1.0, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
+               ArdourCanvas::Line* canvas_item = new ArdourCanvas::Line(group);
+               CANVAS_DEBUG_NAME (canvas_item, string_compose ("transient group for %1", region()->name()));
 
-               canvas_item->property_points() = points;
-               canvas_item->property_width_pixels() = 1;
-               canvas_item->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
-               canvas_item->property_first_arrowhead() = TRUE;
-               canvas_item->property_last_arrowhead() = TRUE;
-               canvas_item->property_arrow_shape_a() = 11.0;
-               canvas_item->property_arrow_shape_b() = 0.0;
-               canvas_item->property_arrow_shape_c() = 4.0;
+               canvas_item->set (ArdourCanvas::Duple (-1.0, 2.0),
+                                 ArdourCanvas::Duple (1.0, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
 
                canvas_item->raise_to_top ();
                canvas_item->show ();
 
                canvas_item->set_data ("regionview", this);
-               canvas_item->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), canvas_item, this));
+               canvas_item->Event.connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), canvas_item, this));
 
                feature_lines.push_back (make_pair(0, canvas_item));
        }
@@ -1317,17 +1541,15 @@ AudioRegionView::transients_changed ()
 
        for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 
-               ArdourCanvas::Points points;
-
                float *pos = new float;
-               *pos = trackview.editor().frame_to_pixel (*i);
+               *pos = trackview.editor().sample_to_pixel (*i);
 
-               points.push_back(Gnome::Art::Point(*pos, 2.0)); // first x-coord needs to be a non-normal value
-               points.push_back(Gnome::Art::Point(*pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
+               (*l).second->set (
+                       ArdourCanvas::Duple (*pos, 2.0),
+                       ArdourCanvas::Duple (*pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1)
+                       );
 
-               (*l).second->property_points() = points;
                (*l).second->set_data ("position", pos);
-
                (*l).first = *i;
        }
 }
@@ -1347,7 +1569,7 @@ AudioRegionView::update_transient(float /*old_pos*/, float new_pos)
                if (rint(new_pos) == rint(*pos)) {
 
                    framepos_t old_frame = (*l).first;
-                   framepos_t new_frame = trackview.editor().pixel_to_frame (new_pos);
+                   framepos_t new_frame = trackview.editor().pixel_to_sample (new_pos);
 
                    _region->update_transient (old_frame, new_frame);
 
@@ -1382,294 +1604,6 @@ AudioRegionView::thaw_after_trim ()
        drag_end ();
 }
 
-void
-AudioRegionView::redraw_start_xfade ()
-{
-       boost::shared_ptr<AudioRegion> ar (audio_region());
-
-       if (!ar->fade_in() || ar->fade_in()->empty()) {
-               return;
-       }
-
-       show_start_xfade();
-
-       redraw_start_xfade_to (ar, ar->fade_in()->back()->when);
-}
-
-void
-AudioRegionView::redraw_start_xfade_to (boost::shared_ptr<AudioRegion> ar, framecnt_t len)
-{
-       int32_t const npoints = trackview.editor().frame_to_pixel (len);
-
-       if (npoints < 3) {
-               return;
-       }
-
-       if (!start_xfade_in) {
-               start_xfade_in = new ArdourCanvas::Line (*group);
-               start_xfade_in->property_width_pixels() = 1;
-               start_xfade_in->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_GainLine.get();
-       }
-
-       if (!start_xfade_out) {
-               start_xfade_out = new ArdourCanvas::Line (*group);
-               start_xfade_out->property_width_pixels() = 1;
-               uint32_t col = UINT_RGBA_CHANGE_A (ARDOUR_UI::config()->canvasvar_GainLine.get(), 128);
-               start_xfade_out->property_fill_color_rgba() = col;
-       }
-
-       if (!start_xfade_rect) {
-               start_xfade_rect = new ArdourCanvas::SimpleRect (*group);
-               start_xfade_rect->property_draw() = true;
-               start_xfade_rect->property_fill() = true;;
-               start_xfade_rect->property_fill_color_rgba() =  ARDOUR_UI::config()->canvasvar_ActiveCrossfade.get();
-               start_xfade_rect->property_outline_pixels() = 0;
-               start_xfade_rect->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_start_xfade_event), start_xfade_rect, this));
-               start_xfade_rect->set_data ("regionview", this);
-       }
-
-       Points* points = get_canvas_points ("xfade edit redraw", npoints);
-       boost::scoped_array<float> vec (new float[npoints]);
-
-       double effective_height;
-       if (_height >= NAME_HIGHLIGHT_THRESH) {
-               effective_height = _height - NAME_HIGHLIGHT_SIZE - 2;
-       } else {
-               effective_height = _height - 2;
-       }
-
-       ar->fade_in()->curve().get_vector (0, ar->fade_in()->back()->when, vec.get(), npoints);
-
-       for (int i = 0, pci = 0; i < npoints; ++i) {
-               Gnome::Art::Point &p ((*points)[pci++]);
-               p.set_x (i);
-               p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
-       }
-
-       start_xfade_rect->property_x1() = ((*points)[0]).get_x();
-       start_xfade_rect->property_y1() = 1.0;
-       start_xfade_rect->property_x2() = ((*points)[npoints-1]).get_x();
-       start_xfade_rect->property_y2() = effective_height;
-       start_xfade_rect->show ();
-
-       start_xfade_in->property_points() = *points;
-       start_xfade_in->show ();
-       start_xfade_in->raise_to_top ();
-
-       /* fade out line */
-
-       boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_in();
-
-       if (!inverse) {
-
-               for (int i = 0, pci = 0; i < npoints; ++i) {
-                       Gnome::Art::Point &p ((*points)[pci++]);
-                       p.set_x (i);
-                       p.set_y (1.0 + effective_height - (effective_height * (1.0 - vec.get()[i])));
-               }
-
-       } else {
-
-               inverse->curve().get_vector (0, inverse->back()->when, vec.get(), npoints);
-
-               for (int i = 0, pci = 0; i < npoints; ++i) {
-                       Gnome::Art::Point &p ((*points)[pci++]);
-                       p.set_x (i);
-                       p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
-               }
-       }
-
-       start_xfade_out->property_points() = *points;
-       start_xfade_out->show ();
-       start_xfade_out->raise_to_top ();
-
-       start_xfade_rect->raise_to_top ();  //this needs to be topmost so the lines don't steal mouse focus
-
-       show_start_xfade();
-
-       delete points;
-}
-
-void
-AudioRegionView::redraw_end_xfade ()
-{
-       boost::shared_ptr<AudioRegion> ar (audio_region());
-
-       if (!ar->fade_out() || ar->fade_out()->empty()) {
-               return;
-       }
-
-       show_end_xfade();
-
-       redraw_end_xfade_to (ar, ar->fade_out()->back()->when);
-}
-
-void
-AudioRegionView::redraw_end_xfade_to (boost::shared_ptr<AudioRegion> ar, framecnt_t len)
-{
-       int32_t const npoints = trackview.editor().frame_to_pixel (len);
-
-       if (npoints < 3) {
-               return;
-       }
-
-       if (!end_xfade_in) {
-               end_xfade_in = new ArdourCanvas::Line (*group);
-               end_xfade_in->property_width_pixels() = 1;
-               end_xfade_in->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_GainLine.get();
-       }
-
-       if (!end_xfade_out) {
-               end_xfade_out = new ArdourCanvas::Line (*group);
-               end_xfade_out->property_width_pixels() = 1;
-               uint32_t col UINT_RGBA_CHANGE_A (ARDOUR_UI::config()->canvasvar_GainLine.get(), 128);
-               end_xfade_out->property_fill_color_rgba() = col;
-       }
-
-       if (!end_xfade_rect) {
-               end_xfade_rect = new ArdourCanvas::SimpleRect (*group);
-               end_xfade_rect->property_draw() = true;
-               end_xfade_rect->property_fill() = true;;
-               end_xfade_rect->property_fill_color_rgba() =  ARDOUR_UI::config()->canvasvar_ActiveCrossfade.get();
-               end_xfade_rect->property_outline_pixels() = 0;
-               end_xfade_rect->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_end_xfade_event), end_xfade_rect, this));
-               end_xfade_rect->set_data ("regionview", this);
-       }
-
-       Points* points = get_canvas_points ("xfade edit redraw", npoints);
-       boost::scoped_array<float> vec (new float[npoints]);
-
-       ar->fade_out()->curve().get_vector (0, ar->fade_out()->back()->when, vec.get(), npoints);
-
-       double rend = trackview.editor().frame_to_pixel (_region->length() - len);
-
-       double effective_height;
-       if (_height >= NAME_HIGHLIGHT_THRESH) {
-               effective_height = _height - NAME_HIGHLIGHT_SIZE - 2;
-       } else {
-               effective_height = _height - 2;
-       }
-
-       for (int i = 0, pci = 0; i < npoints; ++i) {
-               Gnome::Art::Point &p ((*points)[pci++]);
-               p.set_x (rend + i);
-               p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
-       }
-
-       end_xfade_rect->property_x1() = ((*points)[0]).get_x();
-       end_xfade_rect->property_y1() = 1;
-       end_xfade_rect->property_x2() = ((*points)[npoints-1]).get_x();
-       end_xfade_rect->property_y2() = effective_height;
-       end_xfade_rect->show ();
-
-       end_xfade_in->property_points() = *points;
-       end_xfade_in->show ();
-       end_xfade_in->raise_to_top ();
-
-       /* fade in line */
-
-       boost::shared_ptr<AutomationList> inverse = ar->inverse_fade_out ();
-
-       if (!inverse) {
-
-               for (int i = 0, pci = 0; i < npoints; ++i) {
-                       Gnome::Art::Point &p ((*points)[pci++]);
-                       p.set_x (rend + i);
-                       p.set_y (1.0 + effective_height - (effective_height * (1.0 - vec.get()[i])));
-               }
-
-       } else {
-
-               inverse->curve().get_vector (inverse->front()->when, inverse->back()->when, vec.get(), npoints);
-
-               for (int i = 0, pci = 0; i < npoints; ++i) {
-                       Gnome::Art::Point &p ((*points)[pci++]);
-                       p.set_x (rend + i);
-                       p.set_y (1.0 + effective_height - (effective_height * vec.get()[i]));
-               }
-       }
-
-       end_xfade_out->property_points() = *points;
-       end_xfade_out->show ();
-       end_xfade_out->raise_to_top ();
-
-       end_xfade_rect->raise_to_top ();  //this needs to be topmost so the lines don't steal mouse focus
-
-       show_end_xfade();
-
-       delete points;
-}
-
-void
-AudioRegionView::hide_xfades ()
-{
-       hide_start_xfade ();
-       hide_end_xfade ();
-}
-
-void
-AudioRegionView::hide_start_xfade ()
-{
-       if (start_xfade_in) {
-               start_xfade_in->hide();
-       }
-       if (start_xfade_out) {
-               start_xfade_out->hide();
-       }
-       if (start_xfade_rect) {
-               start_xfade_rect->hide ();
-       }
-
-       _start_xfade_visible = false;
-}
-
-void
-AudioRegionView::hide_end_xfade ()
-{
-       if (end_xfade_in) {
-               end_xfade_in->hide();
-       }
-       if (end_xfade_out) {
-               end_xfade_out->hide();
-       }
-       if (end_xfade_rect) {
-               end_xfade_rect->hide ();
-       }
-
-       _end_xfade_visible = false;
-}
-
-void
-AudioRegionView::show_start_xfade ()
-{
-       if (start_xfade_in) {
-               start_xfade_in->show();
-       }
-       if (start_xfade_out) {
-               start_xfade_out->show();
-       }
-       if (start_xfade_rect) {
-               start_xfade_rect->show ();
-       }
-
-       _start_xfade_visible = true;
-}
-
-void
-AudioRegionView::show_end_xfade ()
-{
-       if (end_xfade_in) {
-               end_xfade_in->show();
-       }
-       if (end_xfade_out) {
-               end_xfade_out->show();
-       }
-       if (end_xfade_rect) {
-               end_xfade_rect->show ();
-       }
-
-       _end_xfade_visible = true;
-}
 
 void
 AudioRegionView::show_xfades ()
@@ -1690,8 +1624,15 @@ void
 AudioRegionView::drag_end ()
 {
        TimeAxisViewItem::drag_end ();
-
        //see comment for drag_start
+
+       if (fade_in_handle && fade_in_handle->visible()) {
+               // lenght of region or fade changed, re-check
+               // if fade_in_trim_handle or fade_out_trim_handle should
+               // be visible. -- If the fade_in_handle is visible
+               // we have focus and are not in internal edit mode.
+               entered(false);
+       }
 }
 
 void
@@ -1699,9 +1640,5 @@ AudioRegionView::parameter_changed (string const & p)
 {
        if (p == "show-waveforms") {
                setup_waveform_visibility ();
-       } else if (p == "waveform-scale") {
-               setup_waveform_scale ();
-       } else if (p == "waveform-shape") {
-               setup_waveform_shape ();
        }
 }