+
+void
+Editor::maybe_autoscroll (GdkEventMotion* event)
+{
+ nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
+ nframes64_t frame = drag_info.current_pointer_frame;
+ bool startit = false;
+ double vertical_pos = vertical_adjustment.get_value();
+ double upper = vertical_adjustment.get_upper();
+
+ /*
+ adjust the event.y to take account of the bounds
+ of the _trackview_group
+ */
+
+ double vsx1, vsx2, vsy1, vsy2;
+ _trackview_group->get_bounds (vsx1, vsy1, vsx2, vsy2);
+
+ autoscroll_y = 0;
+ autoscroll_x = 0;
+
+ if ((event->y - vsy1) < vertical_pos) {
+ autoscroll_y = -1;
+ startit = true;
+ }
+
+ if ((event->y - vsy1) > (vertical_pos + canvas_height - canvas_timebars_vsize) && vertical_pos <= upper) {
+ autoscroll_y = 1;
+ startit = true;
+ }
+
+ if (frame > rightmost_frame) {
+
+ if (rightmost_frame < max_frames) {
+ autoscroll_x = 1;
+ startit = true;
+ }
+
+ } else if (frame < leftmost_frame) {
+ if (leftmost_frame > 0) {
+ autoscroll_x = -1;
+ startit = true;
+ }
+
+ }
+
+ if (!allow_vertical_scroll) {
+ autoscroll_y = 0;
+ }
+
+ if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
+ stop_canvas_autoscroll ();
+ }
+
+ if (startit && autoscroll_timeout_tag < 0) {
+ start_canvas_autoscroll (autoscroll_x, autoscroll_y);
+ }
+
+ last_autoscroll_x = autoscroll_x;
+ last_autoscroll_y = autoscroll_y;
+}
+
+void
+Editor::maybe_autoscroll_horizontally (GdkEventMotion* event)
+{
+ nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
+ nframes64_t frame = drag_info.current_pointer_frame;
+ bool startit = false;
+
+ autoscroll_y = 0;
+ autoscroll_x = 0;
+
+ if (frame > rightmost_frame) {
+
+ if (rightmost_frame < max_frames) {
+ autoscroll_x = 1;
+ startit = true;
+ }
+
+ } else if (frame < leftmost_frame) {
+ if (leftmost_frame > 0) {
+ autoscroll_x = -1;
+ startit = true;
+ }
+
+ }
+
+ if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
+ stop_canvas_autoscroll ();
+ }
+
+ if (startit && autoscroll_timeout_tag < 0) {
+ start_canvas_autoscroll (autoscroll_x, autoscroll_y);
+ }
+
+ last_autoscroll_x = autoscroll_x;
+ last_autoscroll_y = autoscroll_y;
+}
+
+gint
+Editor::_autoscroll_canvas (void *arg)
+{
+ return ((Editor *) arg)->autoscroll_canvas ();
+}
+
+bool
+Editor::autoscroll_canvas ()
+{
+ nframes64_t new_frame;
+ nframes64_t limit = max_frames - current_page_frames();
+ GdkEventMotion ev;
+ bool in_track_canvas;
+ double new_pixel;
+ double target_pixel;
+
+ if (autoscroll_x_distance != 0) {
+
+ if (autoscroll_cnt == 50) { /* 0.5 seconds */
+
+ /* after about a while, speed up a bit by changing the timeout interval */
+
+ autoscroll_x_distance = (nframes64_t) floor (current_page_frames()/30.0f);
+
+ } else if (autoscroll_cnt == 150) { /* 1.0 seconds */
+
+ autoscroll_x_distance = (nframes64_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_x_distance = (nframes64_t) floor (current_page_frames()/10.0f);
+
+ }
+ }
+
+ if (autoscroll_y_distance != 0) {
+
+ if (autoscroll_cnt == 50) { /* 0.5 seconds */
+
+ /* after about a while, speed up a bit by changing the timeout interval */
+
+ autoscroll_y_distance = 10;
+
+ } else if (autoscroll_cnt == 150) { /* 1.0 seconds */
+
+ autoscroll_y_distance = 20;
+
+ } else if (autoscroll_cnt == 300) { /* 1.5 seconds */
+
+ /* after about another while, speed up by increasing the shift per callback */
+
+ autoscroll_y_distance = 40;
+ }
+ }
+
+ if (autoscroll_x < 0) {
+ if (leftmost_frame < autoscroll_x_distance) {
+ new_frame = 0;
+ } else {
+ new_frame = leftmost_frame - autoscroll_x_distance;
+ }
+ } else if (autoscroll_x > 0) {
+ if (leftmost_frame > limit - autoscroll_x_distance) {
+ new_frame = limit;
+ } else {
+ new_frame = leftmost_frame + autoscroll_x_distance;
+ }
+ } else {
+ new_frame = leftmost_frame;
+ }
+
+ double vertical_pos = vertical_adjustment.get_value();
+
+ if (autoscroll_y < 0) {
+
+ if (vertical_pos < autoscroll_y_distance) {
+ new_pixel = 0;
+ } else {
+ new_pixel = vertical_pos - autoscroll_y_distance;
+ }
+
+ target_pixel = drag_info.current_pointer_y - autoscroll_y_distance;
+ target_pixel = max (target_pixel, 0.0);
+
+ } else if (autoscroll_y > 0) {
+
+ double top_of_bottom_of_canvas = full_canvas_height - canvas_height;
+
+ if (vertical_pos > full_canvas_height - autoscroll_y_distance) {
+ new_pixel = full_canvas_height;
+ } else {
+ new_pixel = vertical_pos + autoscroll_y_distance;
+ }
+
+ new_pixel = min (top_of_bottom_of_canvas, new_pixel);
+
+ target_pixel = drag_info.current_pointer_y + autoscroll_y_distance;
+
+ /* don't move to the full canvas height because the item will be invisible
+ (its top edge will line up with the bottom of the visible canvas.
+ */
+
+ target_pixel = min (target_pixel, full_canvas_height - 10);
+
+ } else {
+ target_pixel = drag_info.current_pointer_y;
+ new_pixel = vertical_pos;
+ }
+
+
+
+ if ((new_frame == 0 || new_frame == limit) && (new_pixel == 0 || new_pixel == DBL_MAX)) {
+ /* we are done */
+ return false;
+ }
+
+ if (new_frame != leftmost_frame) {
+ reset_x_origin (new_frame);
+ }
+
+ vertical_adjustment.set_value (new_pixel);
+
+ /* fake an event. */
+
+ Glib::RefPtr<Gdk::Window> canvas_window = const_cast<Editor*>(this)->track_canvas->get_window();
+ gint x, y;
+ Gdk::ModifierType mask;
+ canvas_window->get_pointer (x, y, mask);
+ ev.type = GDK_MOTION_NOTIFY;
+ ev.state |= Gdk::BUTTON1_MASK;
+ ev.x = x;
+ ev.y = y;
+
+ motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);
+
+ 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;
+
+ }
+
+ return true;
+}
+
+void
+Editor::start_canvas_autoscroll (int dx, int dy)
+{
+ if (!session || autoscroll_active) {
+ return;
+ }
+
+ stop_canvas_autoscroll ();
+
+ autoscroll_active = true;
+ autoscroll_x = dx;
+ autoscroll_y = dy;
+ autoscroll_x_distance = (nframes64_t) floor (current_page_frames()/50.0);
+ autoscroll_y_distance = fabs (dy * 5); /* pixels */
+ 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;
+}
+
+bool
+Editor::left_track_canvas (GdkEventCrossing *ev)
+{
+ set_entered_track (0);
+ set_entered_regionview (0);
+ reset_canvas_action_sensitivity (false);
+ return false;
+}
+
+bool
+Editor::entered_track_canvas (GdkEventCrossing *ev)
+{
+ reset_canvas_action_sensitivity (true);
+ return FALSE;
+}
+
+void
+Editor::tie_vertical_scrolling ()
+{
+ scroll_canvas_vertically ();
+
+ /* this will do an immediate redraw */
+
+ controls_layout.get_vadjustment()->set_value (vertical_adjustment.get_value());
+}
+
+void
+Editor::scroll_canvas_horizontally ()
+{
+ nframes64_t time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
+
+ if (time_origin != leftmost_frame) {
+ canvas_scroll_to (time_origin);
+ }
+
+ /* horizontal scrolling only */
+ double x1, x2, y1, y2, x_delta;
+
+ _master_group->get_bounds(x1, y1, x2, y2);
+ x_delta = x1 + horizontal_adjustment.get_value();
+
+ _master_group->move (-x_delta, 0);
+ timebar_group->move (-x_delta, 0);
+ cursor_group->move (-x_delta, 0);
+}
+
+void
+Editor::scroll_canvas_vertically ()
+{
+ /* vertical scrolling only */
+ double x1, x2, y1, y2, y_delta;
+
+ _trackview_group->get_bounds(x1, y1, x2, y2);
+ y_delta = y1 + vertical_adjustment.get_value() - canvas_timebars_vsize;
+
+ _trackview_group->move (0, -y_delta);
+ _region_motion_group->move (0, -y_delta);
+
+ /* required to keep the controls_layout in sync with the canvas group */
+ track_canvas->update_now ();
+
+}
+
+void
+Editor::canvas_horizontally_scrolled ()
+{
+ nframes64_t time_origin = (nframes64_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;
+ nframes64_t rightmost_frame = leftmost_frame + current_page_frames ();
+
+ if (rightmost_frame > last_canvas_frame) {
+ last_canvas_frame = rightmost_frame;
+ //reset_scrolling_region ();
+ }
+
+ 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);
+ }
+}
+