ardour/livetrax
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Remove code to zoom on up/down mouse movement when dragging

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the playhead.


git-svn-id: svn://localhost/ardour2/branches/3.0@10786 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2011-11-23 01:17:41 +00:00
parent e913b03fb6
commit be951eca95
1 changed files with 0 additions and 33 deletions
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33
gtk2_ardour/editor_drag.cc
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@ -2094,39 +2094,6 @@ CursorDrag::start_grab (GdkEvent* event, Gdk::Cursor* c)
void
CursorDrag::motion (GdkEvent* event, bool)
{
if (_drags->current_pointer_y() != last_pointer_y()) {
/* zoom when we move the pointer up and down */
/* y range to operate over (pixels) */
double const y_range = 512;
/* we will multiply the grab zoom by a factor between scale_range and scale_range^-1 */
double const scale_range = 4;
/* dead zone around the grab point in which to do no zooming (pixels) */
double const dead_zone = 100;
/* current dy */
double dy = _drags->current_pointer_y() - grab_y();
if (dy < -dead_zone || dy > dead_zone) {
/* we are outside the dead zone; remove it from our calculation */
if (dy < 0) {
dy += dead_zone;
} else {
dy -= dead_zone;
}
/* get a number from -1 to 1 as dy ranges from -y_range to y_range */
double udy = max (min (dy / y_range, 1.0), -1.0);
/* and zoom, using playhead focus temporarily */
Editing::ZoomFocus const zf = _editor->get_zoom_focus ();
_editor->set_zoom_focus (Editing::ZoomFocusPlayhead);
_editor->temporal_zoom (_grab_zoom * pow (scale_range, -udy));
_editor->set_zoom_focus (zf);
}
}
framepos_t const adjusted_frame = adjusted_current_frame (event);
if (adjusted_frame != last_pointer_frame()) {
fake_locate (adjusted_frame);