size-based scrolling and right-click pages for editor notebook
[ardour.git] / gtk2_ardour / regionview.cc
index 329166cd0e5246cfd8b2e6cd2e00312786f4047f..7e6caad71d8de12179fea3a8e62817c5ed165c40 100644 (file)
@@ -33,9 +33,9 @@
 #include "streamview.h"
 #include "regionview.h"
 #include "audio_time_axis.h"
-#include "canvas-simplerect.h"
-#include "canvas-simpleline.h"
-#include "canvas-waveview.h"
+#include "simplerect.h"
+#include "simpleline.h"
+#include "waveview.h"
 #include "public_editor.h"
 #include "region_editor.h"
 #include "region_gain_line.h"
 using namespace sigc;
 using namespace ARDOUR;
 using namespace Editing;
+using namespace ArdourCanvas;
 
 static const int32_t sync_mark_width = 9;
 
 sigc::signal<void,AudioRegionView*> AudioRegionView::AudioRegionViewGoingAway;
 
-AudioRegionView::AudioRegionView (Gnome::Canvas::Group *parent, AudioTimeAxisView &tv, 
+AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, AudioTimeAxisView &tv, 
                                  AudioRegion& r, 
                                  double spu, 
                                  double amplitude_above_axis,
                                  Gdk::Color& basic_color,
                                  bool wfw)
 
-       : TimeAxisViewItem (r.name(), parent, tv, spu, basic_color, r.position(), r.length(),
+       : TimeAxisViewItem (r.name(), *parent, tv, spu, basic_color, r.position(), r.length(),
                            TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
                                                          TimeAxisViewItem::ShowNameHighlight|
                                                          TimeAxisViewItem::ShowFrame)),
 
          region (r)
 {
-        Gnome::Canvas::Points *shape;
+        ArdourCanvas::Points shape;
        XMLNode *node;
 
        editor = 0;
@@ -97,63 +98,59 @@ AudioRegionView::AudioRegionView (Gnome::Canvas::Group *parent, AudioTimeAxisVie
 
        create_waves ();
 
-       gtk_object_set_data (GTK_OBJECT(name_highlight), "regionview", this);
-       gtk_object_set_data (GTK_OBJECT(name_text), "regionview", this);
+       name_highlight->set_data ("regionview", this);
+       name_text->set_data ("regionview", this);
 
-       shape = new Gnome::Canvas::Points ();
+       //      shape = new ArdourCanvas::Points ();
 
        /* an equilateral triangle */
 
-       shape->push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
-       shape->push_back (Gnome::Art::Point ((sync_mark_width - 1)/2, 1));
-       shape->push_back (Gnome::Art::Point (0, sync_mark_width - 1));
-       shape->push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
+       shape.push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
+       shape.push_back (Gnome::Art::Point ((sync_mark_width - 1)/2, 1));
+       shape.push_back (Gnome::Art::Point (0, sync_mark_width - 1));
+       shape.push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
 
-       sync_mark =  new Gnome::Canvas::Polygon (*group);
-       sync_mark->set_property ("points", shape);
-       sync_mark->set_property ("fill_color_rgba", fill_color);
+       sync_mark =  new ArdourCanvas::Polygon (*group);
+       sync_mark->property_points() = shape;
+       sync_mark->property_fill_color_rgba() = fill_color;
        sync_mark->hide();
-       gnome_canvas_points_unref (shape->gobj());
 
-       fade_in_shape = new Gnome::Canvas::Polygon (*group);
-       fade_in_shape->set_property ("fill_color_rgba", fade_color);
+       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 Gnome::Canvas::Polygon (*group);
-       fade_out_shape->set_property ("fill_color_rgba", fade_color);
+       fade_out_shape = new ArdourCanvas::Polygon (*group);
+       fade_out_shape->property_fill_color_rgba() = fade_color;
        fade_out_shape->set_data ("regionview", this);
-       
 
 
        {
-                       uint32_t r,g,b,a;
-                       UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
-       
-
-       fade_in_handle = new Gnome::Canvas::SimpleRect (*group);
-       fade_in_handle->set_property ("fill_color_rgba", RGBA_TO_UINT(r,g,b,0));
-       fade_in_handle->set_property ("outline_pixels", 0);
-       fade_in_handle->set_property ("y1", 2.0);
-       fade_in_handle->set_property ("y2", 7.0);
-
-       fade_in_handle->set_data ("regionview", this);
+               uint32_t r,g,b,a;
+               UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
        
-       fade_out_handle = new Gnome::Canvas::SimpleRect (*group);
-       fade_out_handle->set_property ("fill_color_rgba", RGBA_TO_UINT(r,g,b,0));
-       fade_out_handle->set_property ("outline_pixels", 0);
-       fade_out_handle->set_property ("y1", 2.0);
-       fade_out_handle->set_property ("y2", 7.0);
 
-       gtk_object_set_data (GTK_OBJECT(fade_out_handle), "regionview", this);
+               fade_in_handle = new ArdourCanvas::SimpleRect (*group);
+               fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
+               fade_in_handle->property_outline_pixels() = 0;
+               fade_in_handle->property_y1() = 2.0;
+               fade_in_handle->property_y2() = 7.0;
+               
+               fade_in_handle->set_data ("regionview", this);
+               
+               fade_out_handle = new ArdourCanvas::SimpleRect (*group);
+               fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
+               fade_out_handle->property_outline_pixels() = 0;
+               fade_out_handle->property_y1() = 2.0;
+               fade_out_handle->property_y2() = 7.0;
+               
+               fade_out_handle->set_data ("regionview", this);
        }
 
        string foo = region.name();
        foo += ':';
        foo += "gain";
 
-       gain_line = new AudioRegionGainLine (foo, tv.session(), *this, &group, region.envelope(),
-                                            PublicEditor::canvas_control_point_event,
-                                            PublicEditor::canvas_line_event);
+       gain_line = new AudioRegionGainLine (foo, tv.session(), *this, *group, region.envelope());
 
        if (!(_flags & EnvelopeVisible)) {
                gain_line->hide ();
@@ -178,37 +175,16 @@ AudioRegionView::AudioRegionView (Gnome::Canvas::Group *parent, AudioTimeAxisVie
 
        region.StateChanged.connect (mem_fun(*this, &AudioRegionView::region_changed));
 
-       gtk_signal_connect (GTK_OBJECT(group), "event",
-                           GTK_SIGNAL_FUNC (PublicEditor::canvas_region_view_event),
-                           this);
-       gtk_signal_connect (GTK_OBJECT(name_highlight), "event",
-                           GTK_SIGNAL_FUNC (PublicEditor::canvas_region_view_name_highlight_event),
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(name_text), "event",
-                           GTK_SIGNAL_FUNC (PublicEditor::canvas_region_view_name_event),
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(fade_in_shape), "event",
-                           GTK_SIGNAL_FUNC (PublicEditor::canvas_fade_in_event),
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(fade_in_handle), "event",
-                           GTK_SIGNAL_FUNC (PublicEditor::canvas_fade_in_handle_event),
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(fade_out_shape), "event",
-                           GTK_SIGNAL_FUNC ( PublicEditor::canvas_fade_out_event),
-                           this);
-
-       gtk_signal_connect_object (GTK_OBJECT(fade_out_handle), "event",
-                           GTK_SIGNAL_FUNC ( PublicEditor::canvas_fade_out_handle_event),
-                           this);
+       group->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
+       name_highlight->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
+       fade_in_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
+       fade_in_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
+       fade_out_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
+       fade_out_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 
        set_colors ();
 
        /* XXX sync mark drag? */
-
 }
 
 AudioRegionView::~AudioRegionView ()
@@ -235,7 +211,7 @@ AudioRegionView::~AudioRegionView ()
 }
 
 gint
-AudioRegionView::_lock_toggle (Gnome::Canvas::Item* item, GdkEvent* ev, void* arg)
+AudioRegionView::_lock_toggle (ArdourCanvas::Item* item, GdkEvent* ev, void* arg)
 {
        switch (ev->type) {
        case GDK_BUTTON_RELEASE:
@@ -334,14 +310,14 @@ AudioRegionView::fade_in_active_changed ()
 
        if (region.fade_in_active()) {
                col = RGBA_TO_UINT(r,g,b,120);
-               fade_in_shape->set_property ("fill_color_rgba", col);
-               fade_in_shape->set_property ("width_pixels", 0);
-               fade_in_shape->set_property ("outline_color_rgba", RGBA_TO_UINT(r,g,b,0));
+               fade_in_shape->property_fill_color_rgba() = col;
+               fade_in_shape->property_width_pixels() = 0;
+               fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
        } else { 
                col = RGBA_TO_UINT(r,g,b,0);
-               fade_in_shape->set_property ("fill_color_rgba", col);
-               fade_in_shape->set_property ("width_pixels", 1);
-               fade_in_shape->set_property ("outline_color_rgba", RGBA_TO_UINT(r,g,b,255));
+               fade_in_shape->property_fill_color_rgba() = col;
+               fade_in_shape->property_width_pixels() = 1;
+               fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
        }
 }
 
@@ -354,14 +330,14 @@ AudioRegionView::fade_out_active_changed ()
 
        if (region.fade_out_active()) {
                col = RGBA_TO_UINT(r,g,b,120);
-               fade_out_shape->set_property ("fill_color_rgba", col);
-               fade_out_shape->set_property ("width_pixels", 0);
-               fade_out_shape->set_property ("outline_color_rgba", RGBA_TO_UINT(r,g,b,0));
+               fade_out_shape->property_fill_color_rgba() = col;
+               fade_out_shape->property_width_pixels() = 0;
+               fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
        } else { 
                col = RGBA_TO_UINT(r,g,b,0);
-               fade_out_shape->set_property ("fill_color_rgba", col);
-               fade_out_shape->set_property ("width_pixels", 1);
-               fade_out_shape->set_property ("outline_color_rgba", RGBA_TO_UINT(r,g,b,255));
+               fade_out_shape->property_fill_color_rgba() = col;
+               fade_out_shape->property_width_pixels() = 1;
+               fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
        }
 }
 
@@ -373,7 +349,7 @@ AudioRegionView::region_scale_amplitude_changed ()
 
        for (uint32_t n = 0; n < waves.size(); ++n) {
                // force a reload of the cache
-               gnome_canvas_item_set (waves[n], "data_src", &region, NULL);
+               waves[n]->property_data_src() = &region;
        }
 }
 
@@ -402,15 +378,15 @@ AudioRegionView::region_resized (Change what_changed)
                reset_width_dependent_items (unit_length);
                
                for (uint32_t n = 0; n < waves.size(); ++n) {
-                       gnome_canvas_item_set (waves[n], "region_start", (guint32) region.start(), NULL);
+                       waves[n]->property_region_start() = region.start();
                }
                
                for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 
                        (*i)->set_duration (unit_length);
 
-                       for (vector<GnomeCanvasItem*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
-                               gnome_canvas_item_set ((*w), "region_start", region.start(), NULL);
+                       for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
+                               (*w)->property_region_start() = region.start();
                        }
                }
        }
@@ -423,7 +399,7 @@ AudioRegionView::reset_width_dependent_items (double pixel_width)
        _pixel_width = pixel_width;
 
        if (zero_line) {
-               zero_line->set_property ("x2", pixel_width - 1.0);
+               zero_line->property_x2() = pixel_width - 1.0;
        }
 
        if (pixel_width <= 6.0) {
@@ -457,9 +433,9 @@ AudioRegionView::region_muted ()
 
        for (uint32_t n=0; n < waves.size(); ++n) {
                if (region.muted()) {
-                       gnome_canvas_item_set (waves[n], "wave_color", color_map[cMutedWaveForm], NULL);
+                       waves[n]->property_wave_color() = color_map[cMutedWaveForm];
                } else {
-                       gnome_canvas_item_set (waves[n], "wave_color", color_map[cWaveForm], NULL);
+                       waves[n]->property_wave_color() = color_map[cWaveForm];
                }
        }
 }
@@ -537,8 +513,8 @@ AudioRegionView::set_height (gdouble height)
                
                gdouble yoff = n * (ht+1);
                
-               gnome_canvas_item_set (waves[n], "height", ht, NULL);
-               gnome_canvas_item_set (waves[n], "y", yoff + 2, NULL);
+               waves[n]->property_height() = ht;
+               waves[n]->property_y() = yoff + 2;
        }
 
        if ((height/wcnt) < NAME_HIGHLIGHT_SIZE) {
@@ -565,8 +541,8 @@ AudioRegionView::manage_zero_line ()
 
        if (_height >= 100) {
                gdouble wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
-               zero_line->set_property ("y1", wave_midpoint);
-               zero_line->set_property ("y2", wave_midpoint);
+               zero_line->property_y1() = wave_midpoint;
+               zero_line->property_y2() = wave_midpoint;
                zero_line->show();
        } else {
                zero_line->hide();
@@ -593,7 +569,7 @@ AudioRegionView::reset_fade_in_shape_width (jack_nframes_t width)
 
        width = std::max ((jack_nframes_t) 64, width);
 
-       GnomeCanvasPoints* points;
+       Points* points;
        double pwidth = width / samples_per_unit;
        uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
        double h; 
@@ -613,8 +589,8 @@ AudioRegionView::reset_fade_in_shape_width (jack_nframes_t width)
                handle_center = 3.0;
        }
        
-       fade_in_handle->set_property ("x1",  handle_center - 3.0);
-       fade_in_handle->set_property ("x2",  handle_center + 3.0);
+       fade_in_handle->property_x1() =  handle_center - 3.0;
+       fade_in_handle->property_x2() =  handle_center + 3.0;
        
        if (pwidth < 5) {
                fade_in_shape->hide();
@@ -640,25 +616,24 @@ AudioRegionView::reset_fade_in_shape_width (jack_nframes_t width)
        double xdelta = pwidth/npoints;
 
        for (pi = 0, pc = 0; pc < npoints; ++pc) {
-               points->coords[pi++] = 1 + (pc * xdelta);
-               points->coords[pi++] = 2 + (h - (curve[pc] * h));
+               (*points)[pi].set_x(1 + (pc * xdelta));
+               (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
        }
        
        /* fold back */
 
-       points->coords[pi++] = pwidth;
-       points->coords[pi++] = 2;
+       (*points)[pi].set_x(pwidth);
+       (*points)[pi++].set_y(2);
 
-       points->coords[pi++] = 1;
-       points->coords[pi++] = 2;
+       (*points)[pi].set_x(1);
+       (*points)[pi++].set_y(2);
 
        /* connect the dots ... */
 
-       points->coords[pi++] = points->coords[0];
-       points->coords[pi] = points->coords[1];
+       (*points)[pi] = (*points)[0];
        
-       fade_in_shape->set_property ("points", points);
-       gnome_canvas_points_unref (points);
+       fade_in_shape->property_points() = *points;
+       delete points;
 }
 
 void
@@ -674,7 +649,7 @@ AudioRegionView::reset_fade_out_shape_width (jack_nframes_t width)
 
        width = std::max ((jack_nframes_t) 64, width);
 
-       GnomeCanvasPoints* points;
+       Points* points;
        double pwidth = width / samples_per_unit;
        uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
        double h;
@@ -694,8 +669,8 @@ AudioRegionView::reset_fade_out_shape_width (jack_nframes_t width)
                handle_center = 3.0;
        }
        
-       fade_out_handle->set_property ("x1",  handle_center - 3.0);
-       fade_out_handle->set_property ("x2",  handle_center + 3.0);
+       fade_out_handle->property_x1() =  handle_center - 3.0;
+       fade_out_handle->property_x2() =  handle_center + 3.0;
 
        /* don't show shape if its too small */
        
@@ -723,25 +698,24 @@ AudioRegionView::reset_fade_out_shape_width (jack_nframes_t width)
        double xdelta = pwidth/npoints;
 
        for (pi = 0, pc = 0; pc < npoints; ++pc) {
-               points->coords[pi++] = _pixel_width - 1 - pwidth + (pc*xdelta);
-               points->coords[pi++] = 2 + (h - (curve[pc] * h));
+               (*points)[pi] = _pixel_width - 1 - pwidth + (pc*xdelta);
+               (*points)[pi++] = 2 + (h - (curve[pc] * h));
        }
        
        /* fold back */
 
-       points->coords[pi++] = _pixel_width;
-       points->coords[pi++] = h;
+       (*points)[pi] = _pixel_width;
+       (*points)[pi++] = h;
 
-       points->coords[pi++] = _pixel_width;
-       points->coords[pi++] = 2;
+       (*points)[pi] = _pixel_width;
+       (*points)[pi++] = 2;
 
        /* connect the dots ... */
 
-       points->coords[pi++] = points->coords[0];
-       points->coords[pi] = points->coords[1];
+       (*points)[pi] = (*points)[0];
 
-       fade_out_shape->set_property ("points", points);
-       gnome_canvas_points_unref (points);
+       fade_out_shape->property_points() = *points;
+       delete points;
 }
 
 void
@@ -750,7 +724,7 @@ AudioRegionView::set_samples_per_unit (gdouble spu)
        TimeAxisViewItem::set_samples_per_unit (spu);
 
        for (uint32_t n=0; n < waves.size(); ++n) {
-               gnome_canvas_item_set (waves[n], "samples_per_unit", spu, NULL);
+               waves[n]->property_samples_per_unit() = spu;
        }
 
        for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
@@ -781,7 +755,7 @@ void
 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 {
        for (uint32_t n=0; n < waves.size(); ++n) {
-               gnome_canvas_item_set (waves[n], "amplitude_above_axis", spp, NULL);
+               waves[n]->property_amplitude_above_axis() = spp;
        }
 }
 
@@ -803,13 +777,13 @@ AudioRegionView::set_colors ()
        TimeAxisViewItem::set_colors ();
        
        gain_line->set_line_color (region.envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]);
-       sync_mark->set_property ("fill_color_rgba", fill_color);
+       sync_mark->property_fill_color_rgba() = fill_color;
 
        for (uint32_t n=0; n < waves.size(); ++n) {
                if (region.muted()) {
-                       gnome_canvas_item_set (waves[n], "wave_color", color_map[cMutedWaveForm], NULL);
+                       waves[n]->property_wave_color() = color_map[cMutedWaveForm];
                } else {
-                       gnome_canvas_item_set (waves[n], "wave_color", color_map[cWaveForm], NULL);
+                       waves[n]->property_wave_color() = color_map[cWaveForm];
                }
        }
 }
@@ -899,31 +873,27 @@ AudioRegionView::region_sync_changed ()
 
                        /* lets do it */
 
-                       GtkArg args[1];
-                       GnomeCanvasPoints* points;
-                       
-                       args[0].name = X_("points");
+                       Points points;
                        
-                       sync_mark->get (X_("points"), &points);
+                       points = sync_mark->property_points().get_value();
                        
                        double offset = sync_offset / samples_per_unit;
                        
-                       points->coords[0] = offset - ((sync_mark_width-1)/2);
-                       points->coords[1] = 1;
+                       points[0].set_x(offset - ((sync_mark_width-1)/2));
+                       points[0].set_y(1);
                        
-                       points->coords[2] = offset + (sync_mark_width-1)/2;
-                       points->coords[3] = 1;
+                       points[1].set_x(offset + (sync_mark_width-1)/2);
+                       points[1].set_y(1);
                        
-                       points->coords[4] = offset;
-                       points->coords[5] = sync_mark_width - 1;
+                       points[2].set_x(offset);
+                       points[2].set_y(sync_mark_width - 1);
                        
-                       points->coords[6] = offset - ((sync_mark_width-1)/2);
-                       points->coords[7] = 1;
+                       points[3].set_x(offset - ((sync_mark_width-1)/2));
+                       points[3].set_y(1);
                        
                        sync_mark->show();
-                       sync_mark->set_property ("points", points);
+                       sync_mark->property_points() = points;
 
-                       gnome_canvas_points_unref (points);
                }
        }
 }
@@ -934,12 +904,12 @@ AudioRegionView::set_waveform_visible (bool yn)
        if (((_flags & WaveformVisible) != yn)) {
                if (yn) {
                        for (uint32_t n=0; n < waves.size(); ++n) {
-                               gnome_canvas_item_show (waves[n]);
+                               waves[n]->show();
                        }
                        _flags |= WaveformVisible;
                } else {
                        for (uint32_t n=0; n < waves.size(); ++n) {
-                               gnome_canvas_item_hide (waves[n]);
+                               waves[n]->hide();
                        }
                        _flags &= ~WaveformVisible;
                }
@@ -1002,7 +972,7 @@ AudioRegionView::create_waves ()
                        break;
                }
                
-               wave_caches.push_back (gnome_canvas_waveview_cache_new ());
+               wave_caches.push_back (WaveView::create_cache ());
 
                if (wait_for_waves) {
                        if (region.source(n).peaks_ready (bind (mem_fun(*this, &AudioRegionView::peaks_ready_handler), n))) {
@@ -1016,10 +986,10 @@ AudioRegionView::create_waves ()
        }
 
        if (create_zero_line) {
-               zero_line = new Gnome::Canvas::Line (*group);
-               zero_line->set_property ("x1", (gdouble) 1.0);
-               zero_line->set_property ("x2", (gdouble) (region.length() / samples_per_unit) - 1.0);
-               zero_line->set_property ("color_rgba", (guint) color_map[cZeroLine]);
+               zero_line = new ArdourCanvas::SimpleLine (*group);
+               zero_line->property_x1() = (gdouble) 1.0;
+               zero_line->property_x2() = (gdouble) (region.length() / samples_per_unit) - 1.0;
+               zero_line->property_color_rgba() = (guint) color_map[cZeroLine];
                manage_zero_line ();
        }
 }
@@ -1040,26 +1010,42 @@ AudioRegionView::create_one_wave (uint32_t which, bool direct)
        }
        gdouble yoff = which * ht;
 
-       GnomeCanvasItem *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
-                                                  gnome_canvas_waveview_get_type (),
-                                                  "data_src", (gpointer) &region,
-                                                  "cache", wave_caches[which],
-                                                  "cache_updater", (gboolean) true,
-                                                  "channel", (guint32) which,
-                                                  "length_function", (gpointer) region_length_from_c,
-                                                  "sourcefile_length_function",(gpointer) sourcefile_length_from_c,
-                                                  "peak_function", (gpointer) region_read_peaks_from_c,
-                                                  "x", 0.0,
-                                                  "y", yoff,
-                                                  "height", (double) ht,
-                                                  "samples_per_unit", samples_per_unit,
-                                                  "amplitude_above_axis", _amplitude_above_axis,
-                                                  "wave_color", (guint32) (region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm]),
-                                                  "region_start",(guint32) region.start(),
-                                                  NULL);
+       WaveView *wave = new WaveView(*group);
+
+       wave->property_data_src() = (gpointer) &region;
+       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;
+       wave->property_wave_color() = region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm];
+       wave->property_region_start() = region.start();
+//     WaveView *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
+//                                                gnome_canvas_waveview_get_type (),
+//                                                "data_src", (gpointer) &region,
+//                                                "cache", wave_caches[which],
+//                                                "cache_updater", (gboolean) true,
+//                                                "channel", (guint32) which,
+//                                                "length_function", (gpointer) region_length_from_c,
+//                                                "sourcefile_length_function",(gpointer) sourcefile_length_from_c,
+//                                                "peak_function", (gpointer) region_read_peaks_from_c,
+//                                                "x", 0.0,
+//                                                "y", yoff,
+//                                                "height", (double) ht,
+//                                                "samples_per_unit", samples_per_unit,
+//                                                "amplitude_above_axis", _amplitude_above_axis,
+//                                                "wave_color", (guint32) (region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm]),
+//                                                "region_start",(guint32) region.start(),
+//                                                NULL);
        
        if (!(_flags & WaveformVisible)) {
-               gnome_canvas_item_hide (wave);
+               wave->hide();
        }
 
        /* note: calling this function is serialized by the lock
@@ -1089,10 +1075,10 @@ AudioRegionView::create_one_wave (uint32_t which, bool direct)
                tmp_waves.clear ();
                
                if (!zero_line) {
-                       zero_line = new Gnome::Canvas::Line (*group);
-                       zero_line->set_property ("x1", (gdouble) 1.0);
-                       zero_line->set_property ("x2", (gdouble) (region.length() / samples_per_unit) - 1.0);
-                       zero_line->set_property ("color_rgba", (guint) color_map[cZeroLine]);
+                       zero_line = new ArdourCanvas::SimpleLine (*group);
+                       zero_line->property_x1() = (gdouble) 1.0;
+                       zero_line->property_x2() = (gdouble) (region.length() / samples_per_unit) - 1.0;
+                       zero_line->property_color_rgba() = (guint) color_map[cZeroLine];
                        manage_zero_line ();
                }
        }
@@ -1105,7 +1091,7 @@ AudioRegionView::peaks_ready_handler (uint32_t which)
 }
 
 void
-AudioRegionView::add_gain_point_event (Gnome::Canvas::Item *item, GdkEvent *ev)
+AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
 {
        double x, y;
 
@@ -1149,7 +1135,7 @@ AudioRegionView::add_gain_point_event (Gnome::Canvas::Item *item, GdkEvent *ev)
 }
 
 void
-AudioRegionView::remove_gain_point_event (Gnome::Canvas::Item *item, GdkEvent *ev)
+AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
 {
         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
        region.envelope().erase (cp->model);
@@ -1204,8 +1190,8 @@ AudioRegionView::set_waveform_shape (WaveformShape shape)
        }
 
        if (yn != (bool) (_flags & WaveformRectified)) {
-               for (vector<GnomeCanvasItem *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
-                       gnome_canvas_item_set ((*wave), "rectified", (gboolean) yn, NULL);
+               for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
+                       (*wave)->property_rectified() = yn;
                }
 
                if (zero_line) {
@@ -1262,21 +1248,35 @@ AudioRegionView::add_ghost (AutomationTimeAxisView& atv)
                        break;
                }
                
-               GnomeCanvasItem *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(ghost->group),
-                                                          gnome_canvas_waveview_get_type (),
-                                                          "data_src", (gpointer) &region,
-                                                          "cache", wave_caches[n],
-                                                          "cache_updater", (gboolean) false,
-                                                          "channel", (guint32) n,
-                                                          "length_function", (gpointer) region_length_from_c,
-                                                          "sourcefile_length_function",(gpointer) sourcefile_length_from_c,
-                                                          "peak_function", (gpointer) region_read_peaks_from_c,
-                                                          "x", 0.0,
-                                                          "samples_per_unit", samples_per_unit,
-                                                          "amplitude_above_axis", _amplitude_above_axis,
-                                                          "wave_color", color_map[cGhostTrackWave],
-                                                          "region_start", (guint32) region.start(),
-                                                          NULL);
+               WaveView *wave = new WaveView(*ghost->group);
+
+               wave->property_data_src() =  &region;
+               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_wave_color() = color_map[cGhostTrackWave];
+               wave->property_region_start() = region.start();
+               //              WaveView *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(ghost->group),
+               //                                                         gnome_canvas_waveview_get_type (),
+               //                                                         "data_src", (gpointer) &region,
+               //                                                         "cache", wave_caches[n],
+               //                                                         "cache_updater", (gboolean) false,
+               //                                                         "channel", (guint32) n,
+               //                                                         "length_function", (gpointer) region_length_from_c,
+               //                                                         "sourcefile_length_function",(gpointer) sourcefile_length_from_c,
+               //                                                         "peak_function", (gpointer) region_read_peaks_from_c,
+               //                                                         "x", 0.0,
+               //                                                         "samples_per_unit", samples_per_unit,
+               //                                                         "amplitude_above_axis", _amplitude_above_axis,
+               //                                                         "wave_color", color_map[cGhostTrackWave],
+               //                                                         "region_start", (guint32) region.start(),
+               //                                                         NULL);
 
                
                ghost->waves.push_back(wave);
@@ -1323,8 +1323,8 @@ AudioRegionView::entered ()
        UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
        a=255;
        
-       fade_in_handle->set_property ("fill_color_rgba", RGBA_TO_UINT(r,g,b,a));
-       fade_out_handle->set_property ("fill_color_rgba", RGBA_TO_UINT(r,g,b,a));
+       fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
+       fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
 }
 
 void
@@ -1336,8 +1336,8 @@ AudioRegionView::exited ()
        UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
        a=0;
        
-       fade_in_handle->set_property ("fill_color_rgba", RGBA_TO_UINT(r,g,b,a));
-       fade_out_handle->set_property ("fill_color_rgba", RGBA_TO_UINT(r,g,b,a));
+       fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
+       fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
 }
 
 void
@@ -1354,15 +1354,15 @@ AudioRegionView::set_waveview_data_src()
 
        for (uint32_t n = 0; n < waves.size(); ++n) {
                // TODO: something else to let it know the channel
-               gnome_canvas_item_set (waves[n], "data_src", &region, NULL);
+               waves[n]->property_data_src() = &region;
        }
        
        for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
                
                (*i)->set_duration (unit_length);
                
-               for (vector<GnomeCanvasItem*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
-                       gnome_canvas_item_set ((*w), "data_src", &region, NULL);
+               for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
+                       (*w)->property_data_src() = &region;
                }
        }