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Allow movement of several vertically-colinear points at the same time. 

git-svn-id: svn://localhost/ardour2/branches/3.0@12506 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2012-05-31 17:08:08 +00:00
parent 411a534c38
commit 6a388349c6
1 changed files with 17 additions and 2 deletions
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19
gtk2_ardour/automation_line.cc
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@ -478,7 +478,9 @@ AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool
double dy = fraction - _last_drag_fraction;
for (list<ControlPoint*>::iterator i = points.begin(); i != points.end(); ++i) {
/* Find the points before and after this one on the control_points list */
/* Find the points that aren't being moved before and after
this one on the control_points list
*/
ControlPoint* before = 0;
ControlPoint* after = 0;
@ -487,16 +489,29 @@ AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool
for (vector<ControlPoint*>::iterator j = control_points.begin(); j != control_points.end(); ++j) {
if (*j == *i) {
before = last;
vector<ControlPoint*>::iterator k = j;
/* Next point */
++k;
/* Now move past any points that are being moved this time */
while (find (points.begin(), points.end(), *k) != points.end() && k != control_points.end ()) {
++k;
}
if (k != control_points.end()) {
after = *k;
}
break;
}
last = *j;
if (find (points.begin(), points.end(), *j) == points.end ()) {
/* This point isn't being moved, so it's the `last' point we've seen */
last = *j;
}
}
/* Clamp dx for this point */