x-run counter reset & typo
[ardour.git] / gtk2_ardour / ghostregion.cc
index 8caacac3b3d31b0dd1bb0f9acbe0eab2fce13990..6f4b56eed91572d1b56784c945b176dd9c7baac0 100644 (file)
-#include "canvas-simplerect.h"
-#include "ghostregion.h"
+/*
+    Copyright (C) 2000-2007 Paul Davis
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "evoral/Note.hpp"
+#include "canvas/container.h"
+#include "canvas/polygon.h"
+#include "canvas/rectangle.h"
+#include "canvas/wave_view.h"
+#include "canvas/debug.h"
+
+#include "ardour_ui.h"
 #include "automation_time_axis.h"
+#include "ghostregion.h"
+#include "midi_streamview.h"
+#include "midi_time_axis.h"
 #include "rgb_macros.h"
+#include "note.h"
+#include "hit.h"
 
+using namespace std;
 using namespace Editing;
+using namespace ArdourCanvas;
+using namespace ARDOUR;
+
+PBD::Signal1<void,GhostRegion*> GhostRegion::CatchDeletion;
 
-GhostRegion::GhostRegion (AutomationTimeAxisView& atv, double initial_pos)
-       : trackview (atv)
+GhostRegion::GhostRegion (ArdourCanvas::Container* parent, TimeAxisView& tv, TimeAxisView& source_tv, double initial_pos)
+       : trackview (tv)
+       , source_trackview (source_tv)
 {
-       group = gtk_canvas_item_new (GTK_CANVAS_GROUP(trackview.canvas_display),
-                                    gtk_canvas_group_get_type(),
-                                    "x", initial_pos,
-                                    "y", 0.0,
-                                    NULL);
+       group = new ArdourCanvas::Container (parent);
+       CANVAS_DEBUG_NAME (group, "ghost region");
+       group->set_position (ArdourCanvas::Duple (initial_pos, 0));
 
-       base_rect = gtk_canvas_item_new (GTK_CANVAS_GROUP(group),
-                                        gtk_canvas_simplerect_get_type(),
-                                        "x1", (double) 0.0,
-                                        "y1", (double) 0.0,
-                                        "y2", (double) trackview.height,
-                                        "outline_what", (guint32) 0,
-                                        "outline_color_rgba", color_map[cGhostTrackBaseOutline],
-                                        "fill_color_rgba", color_map[cGhostTrackBaseFill],
-                                        NULL);
+       base_rect = new ArdourCanvas::Rectangle (group);
+       CANVAS_DEBUG_NAME (base_rect, "ghost region rect");
+       base_rect->set_x0 (0);
+       base_rect->set_y0 (1.0);
+       base_rect->set_y1 (trackview.current_height());
+       base_rect->set_outline (false);
 
-       gtk_canvas_item_lower_to_bottom (group);
+       if (!is_automation_ghost()) {
+               base_rect->hide();
+       }
+
+       GhostRegion::set_colors();
 
-       atv.add_ghost (this);
+       /* the parent group of a ghostregion is a dedicated group for ghosts,
+          so the new ghost would want to get to the top of that group*/
+       group->raise_to_top ();
 }
 
 GhostRegion::~GhostRegion ()
 {
-       GoingAway (this);
-       gtk_object_destroy (GTK_OBJECT(group));
+       CatchDeletion (this);
+       delete base_rect;
+       delete group;
 }
 
 void
-GhostRegion::set_samples_per_unit (double spu)
+GhostRegion::set_duration (double units)
 {
-       for (vector<GtkCanvasItem*>::iterator i = waves.begin(); i != waves.end(); ++i) {
-               gtk_canvas_item_set ((*i), "samples_per_unit", spu, NULL);
-       }               
+       base_rect->set_x1 (units);
 }
 
 void
-GhostRegion::set_duration (double units)
+GhostRegion::set_height ()
 {
-       gtk_canvas_item_set (base_rect, "x2", units, NULL);
+       base_rect->set_y1 (trackview.current_height());
 }
 
 void
-GhostRegion::set_height ()
+GhostRegion::set_colors ()
+{
+       if (is_automation_ghost()) {
+               base_rect->set_fill_color (ARDOUR_UI::config()->color_mod ("ghost track base", "ghost track base"));
+       }
+}
+
+guint
+GhostRegion::source_track_color(unsigned char alpha)
+{
+       Gdk::Color color = source_trackview.color();
+       return RGBA_TO_UINT (color.get_red() / 256, color.get_green() / 256, color.get_blue() / 256, alpha);
+}
+
+bool
+GhostRegion::is_automation_ghost()
+{
+       return (dynamic_cast<AutomationTimeAxisView*>(&trackview)) != 0;
+}
+
+AudioGhostRegion::AudioGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
+       : GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
+{
+
+}
+
+void
+AudioGhostRegion::set_samples_per_pixel (double fpp)
+{
+       for (vector<WaveView*>::iterator i = waves.begin(); i != waves.end(); ++i) {
+               (*i)->set_samples_per_pixel (fpp);
+       }
+}
+
+void
+AudioGhostRegion::set_height ()
 {
-       gdouble ht;
-       vector<GtkCanvasItem*>::iterator i;
+       vector<WaveView*>::iterator i;
        uint32_t n;
 
-       gtk_canvas_item_set (base_rect, "y2", (double) trackview.height, NULL);
+       GhostRegion::set_height();
+
+       double const ht = ((trackview.current_height()) / (double) waves.size());
 
-       ht = ((trackview.height) / (double) waves.size());
-       
        for (n = 0, i = waves.begin(); i != waves.end(); ++i, ++n) {
-               gdouble yoff = n * ht;
-               gtk_canvas_item_set ((*i), "height", ht, "y", yoff, NULL);
+               (*i)->set_height (ht);
+               (*i)->set_y_position (n * ht);
+       }
+}
+
+void
+AudioGhostRegion::set_colors ()
+{
+       GhostRegion::set_colors();
+       guint fill_color;
+
+       if (is_automation_ghost()) {
+               fill_color = ARDOUR_UI::config()->color ("ghost track wave fill");
+       }
+       else {
+               fill_color = source_track_color(200);
+       }
+
+       for (uint32_t n=0; n < waves.size(); ++n) {
+               waves[n]->set_outline_color (ARDOUR_UI::config()->color ("ghost track wave"));
+               waves[n]->set_fill_color (fill_color);
+               waves[n]->set_clip_color (ARDOUR_UI::config()->color ("ghost track wave clip"));
+               waves[n]->set_zero_color (ARDOUR_UI::config()->color ("ghost track zero line"));
+       }
+}
+
+/** The general constructor; called when the destination timeaxisview doesn't have
+ *  a midistreamview.
+ *
+ *  @param tv TimeAxisView that this ghost region is on.
+ *  @param source_tv TimeAxisView that we are the ghost for.
+ */
+MidiGhostRegion::MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
+       : GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
+       , _optimization_iterator (events.end ())
+{
+       base_rect->lower_to_bottom();
+       update_range ();
+
+       midi_view()->NoteRangeChanged.connect (sigc::mem_fun (*this, &MidiGhostRegion::update_range));
+}
+
+/**
+ *  @param msv MidiStreamView that this ghost region is on.
+ *  @param source_tv TimeAxisView that we are the ghost for.
+ */
+MidiGhostRegion::MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos)
+       : GhostRegion(msv.midi_underlay_group, msv.trackview(), source_tv, initial_unit_pos)
+       , _optimization_iterator (events.end ())
+{
+       base_rect->lower_to_bottom();
+       update_range ();
+
+       midi_view()->NoteRangeChanged.connect (sigc::mem_fun (*this, &MidiGhostRegion::update_range));
+}
+
+MidiGhostRegion::~MidiGhostRegion()
+{
+       clear_events ();
+}
+
+MidiGhostRegion::GhostEvent::GhostEvent (NoteBase* e, ArdourCanvas::Container* g)
+       : event (e)
+{
+       Hit* hit = NULL;
+       if (dynamic_cast<Note*>(e)) {
+               item = new ArdourCanvas::Rectangle(
+                       g, ArdourCanvas::Rect(e->x0(), e->y0(), e->x1(), e->y1()));
+       } else if ((hit = dynamic_cast<Hit*>(e))) {
+               ArdourCanvas::Polygon* poly = new ArdourCanvas::Polygon(g);
+               poly->set(Hit::points(e->y1() - e->y0()));
+               poly->set_position(hit->position());
+               item = poly;
+       }
+
+       CANVAS_DEBUG_NAME (item, "ghost note item");
+}
+
+MidiGhostRegion::GhostEvent::~GhostEvent ()
+{
+       /* event is not ours to delete */
+       delete item;
+}
+
+void
+MidiGhostRegion::set_samples_per_pixel (double /*spu*/)
+{
+}
+
+/** @return MidiStreamView that we are providing a ghost for */
+MidiStreamView*
+MidiGhostRegion::midi_view ()
+{
+       StreamView* sv = source_trackview.view ();
+       assert (sv);
+       MidiStreamView* msv = dynamic_cast<MidiStreamView*> (sv);
+       assert (msv);
+
+       return msv;
+}
+
+void
+MidiGhostRegion::set_height ()
+{
+       GhostRegion::set_height();
+       update_range();
+}
+
+void
+MidiGhostRegion::set_colors()
+{
+       GhostRegion::set_colors();
+
+       for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
+               (*it)->item->set_fill_color (ARDOUR_UI::config()->color_mod((*it)->event->base_color(), "ghost track midi fill"));
+               (*it)->item->set_outline_color (ARDOUR_UI::config()->color ("ghost track midi outline"));
        }
 }
 
+static double
+note_height(TimeAxisView& trackview, MidiStreamView* mv)
+{
+       const double tv_height  = trackview.current_height();
+       const double note_range = mv->contents_note_range();
+
+       return std::max(1.0, floor(tv_height / note_range - 1.0));
+}
+
+static double
+note_y(TimeAxisView& trackview, MidiStreamView* mv, uint8_t note_num)
+{
+       const double tv_height  = trackview.current_height();
+       const double note_range = mv->contents_note_range();
+       const double s          = tv_height / note_range;
+
+       return tv_height - (note_num + 1 - mv->lowest_note()) * s;
+}
+
+void
+MidiGhostRegion::update_range ()
+{
+       MidiStreamView* mv = midi_view();
+
+       if (!mv) {
+               return;
+       }
+
+       double const h = note_height(trackview, mv);
+
+       for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
+               uint8_t const note_num = (*it)->event->note()->note();
+
+               if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
+                       (*it)->item->hide();
+               } else {
+                       (*it)->item->show();
+                       double const y = note_y(trackview, mv, note_num);
+                       ArdourCanvas::Rectangle* rect = NULL;
+                       ArdourCanvas::Polygon*   poly = NULL;
+                       if ((rect = dynamic_cast<ArdourCanvas::Rectangle*>((*it)->item))) {
+                               rect->set_y0 (y);
+                               rect->set_y1 (y + h);
+                       } else if ((poly = dynamic_cast<ArdourCanvas::Polygon*>((*it)->item))) {
+                               Duple position = poly->position();
+                               position.y = y;
+                               poly->set_position(position);
+                               poly->set(Hit::points(h));
+                       }
+               }
+       }
+}
+
+void
+MidiGhostRegion::add_note (NoteBase* n)
+{
+       GhostEvent* event = new GhostEvent (n, group);
+       events.push_back (event);
+
+       event->item->set_fill_color (ARDOUR_UI::config()->color_mod(n->base_color(), "ghost track midi fill"));
+       event->item->set_outline_color (ARDOUR_UI::config()->color ("ghost track midi outline"));
+
+       MidiStreamView* mv = midi_view();
+
+       if (mv) {
+               uint8_t const note_num = n->note()->note();
+               double const  h        = note_height(trackview, mv);
+               double const  y        = note_y(trackview, mv, note_num);
+
+               if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
+                       event->item->hide();
+               } else {
+                       ArdourCanvas::Rectangle* rect = NULL;
+                       ArdourCanvas::Polygon*   poly = NULL;
+                       if ((rect = dynamic_cast<ArdourCanvas::Rectangle*>(event->item))) {
+                               rect->set_y0 (y);
+                               rect->set_y1 (y + h);
+                       } else if ((poly = dynamic_cast<ArdourCanvas::Polygon*>(event->item))) {
+                               Duple position = poly->position();
+                               position.y = y;
+                               poly->set_position(position);
+                               poly->set(Hit::points(h));
+                       }
+               }
+       }
+}
+
+void
+MidiGhostRegion::clear_events()
+{
+       for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
+               delete *it;
+       }
+
+       events.clear();
+       _optimization_iterator = events.end ();
+}
+
+/** Update the x positions of our representation of a parent's note.
+ *  @param parent The CanvasNote from the parent MidiRegionView.
+ */
+void
+MidiGhostRegion::update_note (NoteBase* parent)
+{
+       GhostEvent* ev = find_event (parent);
+       if (!ev) {
+               return;
+       }
+
+       Note*                    note = NULL;
+       ArdourCanvas::Rectangle* rect = NULL;
+       Hit*                     hit  = NULL;
+       ArdourCanvas::Polygon*   poly = NULL;
+       if ((note = dynamic_cast<Note*>(parent))) {
+               if ((rect = dynamic_cast<ArdourCanvas::Rectangle*>(ev->item))) {
+                       double const x1 = parent->x0 ();
+                       double const x2 = parent->x1 ();
+                       rect->set_x0 (x1);
+                       rect->set_x1 (x2);
+               }
+       } else if ((hit = dynamic_cast<Hit*>(parent))) {
+               if ((poly = dynamic_cast<ArdourCanvas::Polygon*>(ev->item))) {
+                       ArdourCanvas::Duple ppos = hit->position();
+                       ArdourCanvas::Duple gpos = poly->position();
+                       gpos.x = ppos.x;
+                       poly->set_position(gpos);
+               }
+       }
+}
+
+void
+MidiGhostRegion::remove_note (NoteBase* note)
+{
+       GhostEvent* ev = find_event (note);
+       if (!ev) {
+               return;
+       }
+
+       events.remove (ev);
+       delete ev;
+       _optimization_iterator = events.end ();
+}
+
+/** Given a note in our parent region (ie the actual MidiRegionView), find our
+ *  representation of it.
+ *  @return Our Event, or 0 if not found.
+ */
+
+MidiGhostRegion::GhostEvent *
+MidiGhostRegion::find_event (NoteBase* parent)
+{
+       /* we are using _optimization_iterator to speed up the common case where a caller
+          is going through our notes in order.
+       */
+
+       if (_optimization_iterator != events.end()) {
+               ++_optimization_iterator;
+       }
+
+       if (_optimization_iterator != events.end() && (*_optimization_iterator)->event == parent) {
+               return *_optimization_iterator;
+       }
+
+       for (_optimization_iterator = events.begin(); _optimization_iterator != events.end(); ++_optimization_iterator) {
+               if ((*_optimization_iterator)->event == parent) {
+                       return *_optimization_iterator;
+               }
+       }
+
+       return 0;
+}