Logo Search packages:      
Sourcecode: ardour version File versions  Download package

editor_canvas.cc

/*
    Copyright (C) 2005 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 <libgnomecanvasmm/init.h>
#include <libgnomecanvasmm/pixbuf.h>
#include <jack/types.h>
#include <gtkmm2ext/utils.h>

#include <ardour/audioregion.h>
#include <ardour/profile.h>

#include "ardour_ui.h"
#include "editor.h"
#include "waveview.h"
#include "simplerect.h"
#include "simpleline.h"
#include "imageframe.h"
#include "waveview_p.h"
#include "simplerect_p.h"
#include "simpleline_p.h"
#include "imageframe_p.h"
#include "canvas_impl.h"
#include "editing.h"
#include "rgb_macros.h"
#include "utils.h"
#include "time_axis_view.h"
#include "audio_time_axis.h"

#include "i18n.h"

using namespace std;
using namespace sigc;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Glib;
using namespace Gtkmm2ext;
using namespace Editing;

/* XXX this is a hack. it ought to be the maximum value of an nframes_t */

const double max_canvas_coordinate = (double) JACK_MAX_FRAMES;

extern "C"
{

GType gnome_canvas_simpleline_get_type(void);
GType gnome_canvas_simplerect_get_type(void);
GType gnome_canvas_waveview_get_type(void);
GType gnome_canvas_imageframe_get_type(void);

}

static void ardour_canvas_type_init() 
{
      // Map gtypes to gtkmm wrapper-creation functions:
      
      Glib::wrap_register(gnome_canvas_simpleline_get_type(), &Gnome::Canvas::SimpleLine_Class::wrap_new);
      Glib::wrap_register(gnome_canvas_simplerect_get_type(), &Gnome::Canvas::SimpleRect_Class::wrap_new);
      Glib::wrap_register(gnome_canvas_waveview_get_type(), &Gnome::Canvas::WaveView_Class::wrap_new);
      Glib::wrap_register(gnome_canvas_imageframe_get_type(), &Gnome::Canvas::ImageFrame_Class::wrap_new);
      
      // Register the gtkmm gtypes:

      (void) Gnome::Canvas::WaveView::get_type();
      (void) Gnome::Canvas::SimpleLine::get_type();
      (void) Gnome::Canvas::SimpleRect::get_type();
      (void) Gnome::Canvas::ImageFrame::get_type();
} 

void
Editor::initialize_canvas ()
{
      ArdourCanvas::init ();
      ardour_canvas_type_init ();

      /* don't try to center the canvas */

      track_canvas.set_center_scroll_region (false);
      track_canvas.set_dither       (Gdk::RGB_DITHER_NONE);

      /* need to handle 4 specific types of events as catch-alls */

      track_canvas.signal_scroll_event().connect (mem_fun (*this, &Editor::track_canvas_scroll_event));
      track_canvas.signal_motion_notify_event().connect (mem_fun (*this, &Editor::track_canvas_motion_notify_event));
      track_canvas.signal_button_press_event().connect (mem_fun (*this, &Editor::track_canvas_button_press_event));
      track_canvas.signal_button_release_event().connect (mem_fun (*this, &Editor::track_canvas_button_release_event));

      /* just scroll stuff for the timecanvas */
      time_canvas.signal_scroll_event().connect (mem_fun (*this, &Editor::time_canvas_scroll_event));

      track_canvas.set_name ("EditorMainCanvas");
      track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
      track_canvas.signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
      track_canvas.set_flags (CAN_FOCUS);

      /* set up drag-n-drop */

      vector<TargetEntry> target_table;
      
      // Drag-N-Drop from the region list can generate this target
      target_table.push_back (TargetEntry ("regions"));

      target_table.push_back (TargetEntry ("text/plain"));
      target_table.push_back (TargetEntry ("text/uri-list"));
      target_table.push_back (TargetEntry ("application/x-rootwin-drop"));

      track_canvas.drag_dest_set (target_table);
      track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));

      /* stuff for the verbose canvas cursor */

      Pango::FontDescription* font = get_font_for_style (N_("VerboseCanvasCursor"));

      verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas.root());
      verbose_canvas_cursor->property_font_desc() = *font;
      verbose_canvas_cursor->property_anchor() = ANCHOR_NW;

      delete font;
      
      verbose_cursor_visible = false;

      /* on the bottom, an image */
      
      if (Profile->get_sae()) {
            Image img (::get_icon (X_("saelogo")));
            logo_item = new ArdourCanvas::Pixbuf (*track_canvas.root(), 0.0, 0.0, img.get_pixbuf());
            // logo_item->property_height_in_pixels() = true;
            // logo_item->property_width_in_pixels() = true;
            // logo_item->property_height_set() = true;
            // logo_item->property_width_set() = true;
            logo_item->show ();
      }
      
      /* a group to hold time (measure) lines */
      
      time_line_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
      cursor_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);

      time_canvas.set_name ("EditorTimeCanvas");
      time_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
      time_canvas.set_flags (CAN_FOCUS);
      time_canvas.set_center_scroll_region (false);
      time_canvas.set_dither        (Gdk::RGB_DITHER_NONE);
      
      meter_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
      tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height);
      range_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 2.0);
      transport_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 3.0);
      marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 4.0);
      cd_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 5.0);
      
      tempo_bar = new ArdourCanvas::SimpleRect (*tempo_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      tempo_bar->property_outline_pixels() = 0;
      
      meter_bar = new ArdourCanvas::SimpleRect (*meter_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      meter_bar->property_outline_pixels() = 0;
      
      marker_bar = new ArdourCanvas::SimpleRect (*marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      marker_bar->property_outline_pixels() = 0;

      cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      cd_marker_bar->property_outline_pixels() = 0;
      
      range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      range_marker_bar->property_outline_pixels() = 0;
      
      transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      transport_marker_bar->property_outline_pixels() = 0;
      
      cd_marker_bar_drag_rect = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      cd_marker_bar_drag_rect->property_outline_pixels() = 0;
      cd_marker_bar_drag_rect->hide ();

      range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      range_bar_drag_rect->property_outline_pixels() = 0;
      range_bar_drag_rect->hide ();
      
      transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
      transport_bar_drag_rect->property_outline_pixels() = 0;
      transport_bar_drag_rect->hide ();
      
      marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
      marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));

      marker_drag_line = new ArdourCanvas::Line (*track_canvas.root());
      marker_drag_line->property_width_pixels() = 1;
      marker_drag_line->property_points() = marker_drag_line_points;
      marker_drag_line->hide();

      range_marker_drag_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
      range_marker_drag_rect->hide ();
      
      transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
      transport_loop_range_rect->property_outline_pixels() = 1;
      transport_loop_range_rect->hide();

      transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
      transport_punch_range_rect->property_outline_pixels() = 0;
      transport_punch_range_rect->hide();
      
      transport_loop_range_rect->lower_to_bottom (); // loop on the bottom

      transport_punchin_line = new ArdourCanvas::SimpleLine (*time_line_group);
      transport_punchin_line->property_x1() = 0.0;
      transport_punchin_line->property_y1() = 0.0;
      transport_punchin_line->property_x2() = 0.0;
      transport_punchin_line->property_y2() = 0.0;
      transport_punchin_line->hide ();
      
      transport_punchout_line  = new ArdourCanvas::SimpleLine (*time_line_group);
      transport_punchout_line->property_x1() = 0.0;
      transport_punchout_line->property_y1() = 0.0;
      transport_punchout_line->property_x2() = 0.0;
      transport_punchout_line->property_y2() = 0.0;
      transport_punchout_line->hide();
      
      // used to show zoom mode active zooming
      zoom_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
      zoom_rect->property_outline_pixels() = 1;
      zoom_rect->hide();
      
      zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
      
      // used as rubberband rect
      rubberband_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
      rubberband_rect->property_outline_pixels() = 1;
      rubberband_rect->hide();
      
      tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
      meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
      marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
      cd_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
      range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
      transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
      
      ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_loop_range_view), false));
      ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_punch_range_view), false));
      
      double time_height = timebar_height * 5;
      double time_width = FLT_MAX/frames_per_unit;
      time_canvas.set_scroll_region(0.0, 0.0, time_width, time_height);

      playhead_cursor = new Cursor (*this, &Editor::canvas_playhead_cursor_event);

      initial_ruler_update_required = true;
      track_canvas.signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));

      if (logo_item) {
            logo_item->lower_to_bottom ();
      }

      ColorsChanged.connect (mem_fun (*this, &Editor::color_handler));
      color_handler();

}

void
Editor::track_canvas_allocate (Gtk::Allocation alloc)
{
      canvas_allocation = alloc;

      if (!initial_ruler_update_required) {
            if (!canvas_idle_queued) {
                  /* call this first so that we do stuff before any pending redraw */
                  Glib::signal_idle().connect (mem_fun (*this, &Editor::track_canvas_size_allocated), false);
                  canvas_idle_queued = true;
            }
            return;
      } 

      initial_ruler_update_required = false;
      track_canvas_size_allocated ();
}

bool
Editor::track_canvas_size_allocated ()
{
      if (canvas_idle_queued) {
            canvas_idle_queued = false;
      }

      canvas_width = canvas_allocation.get_width();
      canvas_height = canvas_allocation.get_height();

      full_canvas_height = canvas_height;

      if (session) {
            TrackViewList::iterator i;
            double height = 0;

            for (i = track_views.begin(); i != track_views.end(); ++i) {
                  if ((*i)->control_parent) {
                        height += (*i)->effective_height;
                  }
            }
            
            full_canvas_height = height;
      }

      zoom_range_clock.set ((nframes_t) floor ((canvas_width * frames_per_unit)));
      playhead_cursor->set_position (playhead_cursor->current_frame);

      reset_hscrollbar_stepping ();
      reset_scrolling_region ();

      if (playhead_cursor) playhead_cursor->set_length (canvas_height);

      double y1 = vertical_adjustment.get_value ();
      
      for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
            (*x)->set_line_vpos (y1, canvas_height);
      }

      range_marker_drag_rect->property_y1() = y1;
      range_marker_drag_rect->property_y2() = full_canvas_height;
      transport_loop_range_rect->property_y1() = y1;
      transport_loop_range_rect->property_y2() = full_canvas_height;
      transport_punch_range_rect->property_y1() = y1;
      transport_punch_range_rect->property_y2() = full_canvas_height;
      transport_punchin_line->property_y1() = y1;
      transport_punchin_line->property_y2() = full_canvas_height;
      transport_punchout_line->property_y1() = y1;
      transport_punchout_line->property_y2() = full_canvas_height;
      
      update_fixed_rulers();
      redisplay_tempo (true);

      Resized (); /* EMIT_SIGNAL */

      return false;
}

void
Editor::reset_scrolling_region (Gtk::Allocation* alloc)
{
      TreeModel::Children rows = route_display_model->children();
      TreeModel::Children::iterator i;
      double pos;

        for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
              TimeAxisView *tv = (*i)[route_display_columns.tv];
            if (tv != 0 && !tv->hidden()) {
                  pos += tv->effective_height;
            }
      }

      double last_canvas_unit =  max ((last_canvas_frame / frames_per_unit), canvas_width);

      track_canvas.set_scroll_region (0.0, 0.0, last_canvas_unit, pos);

      // XXX what is the correct height value for the time canvas ? this overstates it
      time_canvas.set_scroll_region ( 0.0, 0.0, last_canvas_unit, canvas_height);

      range_marker_drag_rect->property_y2() = canvas_height;
      transport_loop_range_rect->property_y2() = canvas_height;
      transport_punch_range_rect->property_y2() = canvas_height;
      transport_punchin_line->property_y2() = canvas_height;
      transport_punchout_line->property_y2() = canvas_height;

      update_punch_range_view (true);

      controls_layout.queue_resize();
}

void
Editor::controls_layout_size_request (Requisition* req)
{
      TreeModel::Children rows = route_display_model->children();
      TreeModel::Children::iterator i;
      double pos;

      for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
            TimeAxisView *tv = (*i)[route_display_columns.tv];
            if (tv != 0) {
                  pos += tv->effective_height;
            }
      }

      RefPtr<Gdk::Screen> screen = get_screen();

      if (!screen) {
            screen = Gdk::Screen::get_default();
      }

      edit_controls_vbox.check_resize();
      req->width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());

      /* don't get too big. the fudge factors here are just guesses */
      
      req->width = min (req->width, screen->get_width() - 300);
      req->height = min ((gint) pos, (screen->get_height() - 400));

      /* this one is important: it determines how big the layout thinks it really is, as 
         opposed to what it displays on the screen
      */
      
      controls_layout.set_size (edit_controls_vbox.get_width(), (gint) pos);
      controls_layout.set_size_request(edit_controls_vbox.get_width(), -1);
      zoom_box.set_size_request(edit_controls_vbox.get_width(), -1);
      time_button_frame.set_size_request(edit_controls_vbox.get_width() + edit_vscrollbar.get_width(), -1);

      //cerr << "sizes = " << req->width << " " << edit_controls_vbox.get_width() << " " << controls_layout.get_width() << " " << zoom_box.get_width() << " " << time_button_frame.get_width() << endl;//DEBUG    
}

bool
Editor::track_canvas_map_handler (GdkEventAny* ev)
{
      track_canvas.get_window()->set_cursor (*current_canvas_cursor);
      return false;
}

bool
Editor::time_canvas_map_handler (GdkEventAny* ev)
{
      time_canvas.get_window()->set_cursor (*timebar_cursor);
      return false;
}

void  
Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
                               int x, int y, 
                               const SelectionData& data,
                               guint info, guint time)
{
      cerr << "drop on canvas, target = " << data.get_target() << endl;

      if (data.get_target() == "regions") {
            drop_regions (context, x, y, data, info, time);
      } else {
            drop_paths (context, x, y, data, info, time);
      }
}

void
Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
                int x, int y, 
                const SelectionData& data,
                guint info, guint time)
{
      TimeAxisView* tvp;
      AudioTimeAxisView* tv;
      double cy;
      vector<ustring> paths;
      string spath;
      GdkEvent ev;
      nframes64_t frame;

      if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
            goto out;
      }

      /* D-n-D coordinates are window-relative, so convert to "world" coordinates
       */

      double wx;
      double wy;

      track_canvas.window_to_world (x, y, wx, wy);
      wx += horizontal_adjustment.get_value();
      wy += vertical_adjustment.get_value();
      
      ev.type = GDK_BUTTON_RELEASE;
      ev.button.x = wx;
      ev.button.y = wy;

      frame = event_frame (&ev, 0, &cy);

      snap_to (frame);

      if ((tvp = trackview_by_y_position (cy)) == 0) {

            /* drop onto canvas background: create new tracks */

            frame = 0;

            do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
            
      } else if ((tv = dynamic_cast<AudioTimeAxisView*>(tvp)) != 0) {

            /* check that its an audio track, not a bus */
            
            if (tv->get_diskstream()) {
                  /* select the track, then embed */
                  selection->set (tv);
                  do_embed (paths, Editing::ImportDistinctFiles, ImportToTrack, frame);
            }
      }

  out:
      context->drag_finish (true, false, time);
}

void
Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
                  int x, int y, 
                  const SelectionData& data,
                  guint info, guint time)
{
      const SerializedObjectPointers<boost::shared_ptr<Region> >* sr = 
            reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Region> > *> (data.get_data());

      for (uint32_t i = 0; i < sr->cnt; ++i) {

            boost::shared_ptr<Region> r = sr->data[i];
            boost::shared_ptr<AudioRegion> ar;

            if ((ar = boost::dynamic_pointer_cast<AudioRegion>(r)) != 0) {
                  insert_region_list_drag (ar, x, y);
            }
      }

      context->drag_finish (true, false, time);
}

void
Editor::maybe_autoscroll (GdkEvent* event)
{
      nframes_t rightmost_frame = leftmost_frame + current_page_frames();
      nframes_t frame = drag_info.current_pointer_frame;
      bool startit = false;

      static int last_autoscroll_direction = 0;

      if (frame > rightmost_frame) {

            if (rightmost_frame < max_frames) {
                  autoscroll_direction = 1;
                  startit = true;
            }

      } else if (frame < leftmost_frame) {

            if (leftmost_frame > 0) {
                  autoscroll_direction = -1;
                  startit = true;
            }

      } else {

            if (drag_info.last_pointer_frame > drag_info.current_pointer_frame) {
                  autoscroll_direction = -1;
            } else {
                  autoscroll_direction = 1;
            }
      }


      if ((autoscroll_direction != last_autoscroll_direction) || (leftmost_frame < frame < rightmost_frame)) {
            stop_canvas_autoscroll ();
      }
      
      if (startit && autoscroll_timeout_tag < 0) {
            start_canvas_autoscroll (autoscroll_direction);
      }

      last_autoscroll_direction = autoscroll_direction;
}

gint
Editor::_autoscroll_canvas (void *arg)
{
        return ((Editor *) arg)->autoscroll_canvas ();
}

bool
Editor::autoscroll_canvas ()
{
      nframes_t new_frame;
      nframes_t limit = max_frames - current_page_frames();
      GdkEventMotion ev;
      nframes_t target_frame;

      if (autoscroll_direction < 0) {
            if (leftmost_frame < autoscroll_distance) {
                  new_frame = 0;
            } else {
                  new_frame = leftmost_frame - autoscroll_distance;
            }
            target_frame = drag_info.current_pointer_frame - autoscroll_distance;
      } else {
            if (leftmost_frame > limit - autoscroll_distance) {
                  new_frame = limit;
            } else {
                  new_frame = leftmost_frame + autoscroll_distance;
            }
            target_frame = drag_info.current_pointer_frame + autoscroll_distance;
      }

      /* now fake a motion event to get the object that is being dragged to move too */

      ev.type = GDK_MOTION_NOTIFY;
      ev.state &= Gdk::BUTTON1_MASK;
      ev.x = frame_to_unit (target_frame);
      ev.y = drag_info.current_pointer_y;
      motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);

      if (new_frame == 0 || new_frame == limit) {
            /* we are done */
            return false;
      }

      autoscroll_cnt++;

      if (autoscroll_cnt == 1) {

            /* connect the timeout so that we get called repeatedly */

            autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
            return false;

      } 

      if (new_frame != leftmost_frame) {
            reset_x_origin (new_frame);
      }

      if (autoscroll_cnt == 50) { /* 0.5 seconds */
            
            /* after about a while, speed up a bit by changing the timeout interval */

            autoscroll_distance = (nframes_t) floor (current_page_frames()/30.0f);
            
      } else if (autoscroll_cnt == 150) { /* 1.0 seconds */

            autoscroll_distance = (nframes_t) floor (current_page_frames()/20.0f);

      } else if (autoscroll_cnt == 300) { /* 1.5 seconds */

            /* after about another while, speed up by increasing the shift per callback */

            autoscroll_distance =  (nframes_t) floor (current_page_frames()/10.0f);

      } 

      return true;
}

void
Editor::start_canvas_autoscroll (int dir)
{
      if (!session || autoscroll_active) {
            return;
      }

      stop_canvas_autoscroll ();

      autoscroll_active = true;
      autoscroll_direction = dir;
      autoscroll_distance = (nframes_t) floor (current_page_frames()/50.0);
      autoscroll_cnt = 0;
      
      /* do it right now, which will start the repeated callbacks */

      autoscroll_canvas ();
}

void
Editor::stop_canvas_autoscroll ()
{
      if (autoscroll_timeout_tag >= 0) {
            g_source_remove (autoscroll_timeout_tag);
            autoscroll_timeout_tag = -1;
      }

      autoscroll_active = false;
}

gint
Editor::left_track_canvas (GdkEventCrossing *ev)
{
      set_entered_track (0);
      set_entered_regionview (0);
      return FALSE;
}

void
Editor::tie_vertical_scrolling ()
{
      double y1 = vertical_adjustment.get_value();

      playhead_cursor->set_y_axis (y1);

      range_marker_drag_rect->property_y1() = y1;
      range_marker_drag_rect->property_y2() = full_canvas_height;
      transport_loop_range_rect->property_y1() = y1;
      transport_loop_range_rect->property_y2() = full_canvas_height;
      transport_punch_range_rect->property_y1() = y1;
      transport_punch_range_rect->property_y2() = full_canvas_height;
      transport_punchin_line->property_y1() = y1;
      transport_punchin_line->property_y2() = full_canvas_height;
      transport_punchout_line->property_y1() = y1;
      transport_punchout_line->property_y2() = full_canvas_height;

      if (!selection->markers.empty()) {
            for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {        
                  (*x)->set_line_vpos (y1, canvas_height);
            }
      }

      if (logo_item) {
            logo_item->property_y() = y1;
      }

      /* this will do an immediate redraw */

      controls_layout.get_vadjustment()->set_value (y1);
}

void 
Editor::canvas_horizontally_scrolled ()
{
      nframes64_t time_origin = (nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);

      if (time_origin != leftmost_frame) {
            canvas_scroll_to (time_origin);
      }
}

void
Editor::canvas_scroll_to (nframes64_t time_origin)
{
      leftmost_frame = time_origin;
      nframes_t rightmost_frame = leftmost_frame + current_page_frames ();

      if (rightmost_frame > last_canvas_frame) {
            last_canvas_frame = rightmost_frame;
            reset_scrolling_region ();
      }

      if (logo_item) {
            logo_item->property_x() = horizontal_adjustment.get_value ();
      }

      update_fixed_rulers ();

      redisplay_tempo (!_dragging_hscrollbar);
}

void
Editor::color_handler()
{
      playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
      verbose_canvas_cursor->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get();

      meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
      meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();

      tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
      tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();

      marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
      marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();

      cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
      cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();

      range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
      range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();

      transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
      transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();

      cd_marker_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
      cd_marker_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();

      range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
      range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();

      transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
      transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();

      marker_drag_line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerDragLine.get();

      range_marker_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
      range_marker_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();

      transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
      transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();

      transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
      transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();

      transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
      transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();

      zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
      zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();

      rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
      rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();

      location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
      location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
      location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
      location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
      location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();

      refresh_location_display ();
      redisplay_tempo (true);

      if (session)
            session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
}

void
Editor::flush_canvas ()
{
      if (is_mapped()) {
            track_canvas.update_now ();
            // gdk_window_process_updates (GTK_LAYOUT(track_canvas.gobj())->bin_window, true);
      }
}


Generated by  Doxygen 1.6.0   Back to index