return;
}
- double x, y;
+ uint32_t before_p, after_p;
+ double mx = ev->button.x;
+ double my = ev->button.y;
+
+ item->canvas_to_item (mx, my);
+
+ framecnt_t const frame_within_region = (framecnt_t) floor (mx * samples_per_pixel);
+
+ if (!gain_line->control_points_adjacent (frame_within_region, before_p, after_p)) {
+ /* no adjacent points */
+ return;
+ }
+
+ /*y is in item frame */
+ double const bx = gain_line->nth (before_p)->get_x();
+ double const ax = gain_line->nth (after_p)->get_x();
+ double const click_ratio = (ax - mx) / (ax - bx);
+
+ double y = ((gain_line->nth (before_p)->get_y() * click_ratio) + (gain_line->nth (after_p)->get_y() * (1 - click_ratio)));
/* don't create points that can't be seen */
update_envelope_visibility ();
- x = ev->button.x;
- y = ev->button.y;
-
- item->canvas_to_item (x, y);
framepos_t rpos = region ()->position ();
- framepos_t fx = trackview.editor().pixel_to_sample (x) + rpos;
+ framepos_t fx = trackview.editor().pixel_to_sample (mx) + rpos;
trackview.editor ().snap_to_with_modifier (fx, ev);
fx -= rpos;
/* compute vertical fractional position */
- y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
+ y = 1.0 - (y / (gain_line->height()));
/* map using gain line */
- gain_line->view_to_model_coord (x, y);
+ gain_line->view_to_model_coord (mx, y);
/* XXX STATEFUL: can't convert to stateful diff until we
can represent automation data with it.