fix feedback loop while track resizing

[ardour.git] / gtk2_ardour / automation_region_view.cc

diff --git a/gtk2_ardour/automation_region_view.cc b/gtk2_ardour/automation_region_view.cc
index 51650e94aee856a82e520984f3a04c2503aa9b69..c213b3feeb3137152871fc298f8171735ae82693 100644 (file)
--- a/gtk2_ardour/automation_region_view.cc
+++ b/gtk2_ardour/automation_region_view.cc
@@ -17,61 +17,163 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include <pbd/memento_command.h>
 #include "automation_region_view.h"
+#include "public_editor.h"
+
+#include "i18n.h"
 
 AutomationRegionView::AutomationRegionView(ArdourCanvas::Group*                      parent,
                                            AutomationTimeAxisView&                   time_axis,
                                            boost::shared_ptr<ARDOUR::Region>         region,
+                                           const ARDOUR::Parameter&                  param,
                                            boost::shared_ptr<ARDOUR::AutomationList> list,
                                            double                                    spu,
                                            Gdk::Color&                               basic_color)
        : RegionView(parent, time_axis, region, spu, basic_color)
-       , _line(list->parameter().to_string(), time_axis, *group, list)
+       , _parameter(param)
 { 
-       _line.set_colors();
-       _line.show();
-       _line.show_all_control_points();
-       
-       group->raise_to_top ();
+       if (list) {
+               assert(list->parameter() == param);
+               create_line(list);
+       }
        
        group->signal_event().connect (mem_fun (this, &AutomationRegionView::canvas_event), false);
 }
 
+void
+AutomationRegionView::init (Gdk::Color& basic_color, bool wfd)
+{
+       _enable_display = false;
+       
+       RegionView::init(basic_color, false);
+
+       compute_colors (basic_color);
+
+       reset_width_dependent_items ((double) _region->length() / samples_per_unit);
+
+       set_height (trackview.current_height());
+
+       _region->StateChanged.connect (mem_fun(*this, &AutomationRegionView::region_changed));
+
+       set_colors ();
+
+       _enable_display = true;
+}
+
+void
+AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> list)
+{
+       _line = boost::shared_ptr<AutomationLine>(new AutomationLine(
+                               list->parameter().symbol(), trackview, *get_canvas_group(), list));
+       _line->set_colors();
+       _line->show();
+       _line->show_all_control_points();
+       _line->set_height ((uint32_t)rint(trackview.current_height() - NAME_HIGHLIGHT_SIZE));
+}
 
 bool
 AutomationRegionView::canvas_event(GdkEvent* ev)
 {
-       cerr << "AUTOMATION EVENT" << endl;
+       if (ev->type == GDK_BUTTON_RELEASE) {
+
+               const nframes_t when = trackview.editor.pixel_to_frame((nframes_t)ev->button.x)
+                       - _region->position();
+               add_automation_event(ev, when, ev->button.y);
+       }
 
        return false;
 }
 
+void
+AutomationRegionView::add_automation_event (GdkEvent* event, nframes_t when, double y)
+{
+       if (!_line) {
+               boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
+               boost::shared_ptr<ARDOUR::AutomationControl> ac
+                               = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
+               assert(ac);
+               create_line(ac->alist());
+       }
+       assert(_line);
+
+       double x = 0;
+       AutomationTimeAxisView* const view = automation_view();
+
+       view->canvas_display->w2i (x, y);
+
+       /* compute vertical fractional position */
+
+       const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
+       y = 1.0 - (y / h);
+
+       /* map using line */
+
+       _line->view_to_model_y (y);
+
+       view->session().begin_reversible_command (_("add automation event"));
+       XMLNode& before = _line->the_list()->get_state();
+
+       _line->the_list()->add (when, y);
+
+       XMLNode& after = _line->the_list()->get_state();
+       view->session().commit_reversible_command (new MementoCommand<ARDOUR::AutomationList>(
+                       *_line->the_list(), &before, &after));
+
+       view->session().set_dirty ();
+}
 
 void
-AutomationRegionView::set_y_position_and_height (double y, double h)
+AutomationRegionView::set_height (double h)
 {
-       RegionView::set_y_position_and_height(y, h - 1);
+       RegionView::set_height(h);
 
-       _line.set_y_position_and_height ((uint32_t)y, (uint32_t) rint (h - NAME_HIGHLIGHT_SIZE));
+       if (_line)
+               _line->set_height ((uint32_t)rint(h - NAME_HIGHLIGHT_SIZE));
 }
 
+bool
+AutomationRegionView::set_position (nframes_t pos, void* src, double* ignored)
+{
+       // Do nothing, region parent will move us
+       //return false;
+       
+       return RegionView::set_position(pos, src, ignored); // FIXME: eventually...
+}
+
+
+void
+AutomationRegionView::reset_width_dependent_items (double pixel_width)
+{
+       RegionView::reset_width_dependent_items(pixel_width);
+       
+       if (_line)
+               _line->reset();
+}
+
+
 void
 AutomationRegionView::region_resized (ARDOUR::Change what_changed)
 {
-       // Do nothing, parent will move us
+       RegionView::region_resized(what_changed);
+
+       if (_line)
+               _line->reset();
 }
 
 
 void
 AutomationRegionView::entered()
 {
-       _line.track_entered();
+       if (_line)
+               _line->track_entered();
 }
 
 
 void
 AutomationRegionView::exited()
 {
-       _line.track_exited();
+       if (_line)
+               _line->track_exited();
 }