line->signal_event().connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
- alist->StateChanged.connect (_state_connection, boost::bind (&AutomationLine::list_changed, this), gui_context());
+ alist->StateChanged.connect (_state_connection, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
trackview.session()->register_with_memento_command_factory(alist->id(), this);
{
if (!update_pending) {
update_pending = true;
- Gtkmm2ext::UI::instance()->call_slot (boost::bind (&AutomationLine::reset, this));
+ Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::reset, this));
}
}
trackview.editor().session()->set_dirty ();
}
-
-void
-AutomationLine::modify_view_point (ControlPoint& cp, double x, double y, bool keep_x, bool with_push)
-{
- double delta = 0.0;
- uint32_t last_movable = UINT_MAX;
- double x_limit = DBL_MAX;
-
- /* this just changes the current view. it does not alter
- the model in any way at all.
- */
-
- /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
- and needs to be converted to a canvas unit distance.
- */
-
- y = max (0.0, y);
- y = min (1.0, y);
- y = _height - (y * _height);
-
- if (cp.can_slide() && !keep_x) {
-
- /* x-coord cannot move beyond adjacent points or the start/end, and is
- already in frames. it needs to be converted to canvas units.
- */
-
- x = trackview.editor().frame_to_unit (x);
-
- /* clamp x position using view coordinates */
-
- ControlPoint *before;
- ControlPoint *after;
-
- if (cp.view_index()) {
- before = nth (cp.view_index() - 1);
- x = max (x, before->get_x()+1.0);
- } else {
- before = &cp;
- }
-
-
- if (!with_push) {
- if (cp.view_index() < control_points.size() - 1) {
-
- after = nth (cp.view_index() + 1);
-
- /*if it is a "spike" leave the x alone */
-
- if (after->get_x() - before->get_x() < 2) {
- x = cp.get_x();
-
- } else {
- x = min (x, after->get_x()-1.0);
- }
- } else {
- after = &cp;
- }
-
- } else {
-
- ControlPoint* after;
-
- /* find the first point that can't move */
-
- for (uint32_t n = cp.view_index() + 1; (after = nth (n)) != 0; ++n) {
- if (!after->can_slide()) {
- x_limit = after->get_x() - 1.0;
- last_movable = after->view_index();
- break;
- }
- }
-
- delta = x - cp.get_x();
- }
-
- } else {
-
- /* leave the x-coordinate alone */
-
- x = trackview.editor().frame_to_unit (_time_converter.to((*cp.model())->when));
-
- }
-
- if (!with_push) {
-
- cp.move_to (x, y, ControlPoint::Full);
- reset_line_coords (cp);
-
- } else {
-
- uint32_t limit = min (control_points.size(), (size_t)last_movable);
-
- /* move the current point to wherever the user told it to go, subject
- to x_limit.
- */
-
- cp.move_to (min (x, x_limit), y, ControlPoint::Full);
- reset_line_coords (cp);
-
- /* now move all subsequent control points, to reflect the motion.
- */
-
- for (uint32_t i = cp.view_index() + 1; i < limit; ++i) {
- ControlPoint *p = nth (i);
- double new_x;
-
- if (p->can_slide()) {
- new_x = min (p->get_x() + delta, x_limit);
- p->move_to (new_x, p->get_y(), ControlPoint::Full);
- reset_line_coords (*p);
- }
- }
- }
-}
-
void
AutomationLine::reset_line_coords (ControlPoint& cp)
{
* are other selected points.
*
* @param cp Point to drag.
- * @param x Initial x position (frames).
+ * @param x Initial x position (units).
* @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
*/
void
-AutomationLine::start_drag_single (ControlPoint* cp, nframes_t x, float fraction)
+AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
{
trackview.editor().session()->begin_reversible_command (_("automation event move"));
trackview.editor().session()->add_command (new MementoCommand<AutomationList>(*alist.get(), &get_state(), 0));
trackview.editor().session()->add_command (new MementoCommand<AutomationList>(*alist.get(), &get_state(), 0));
_drag_points.clear ();
-
- // check if one of the control points on the line is in a selected range
- bool range_found = false;
- ControlPoint *cp;
-
- for (uint32_t i = i1 ; i <= i2; i++) {
- cp = nth (i);
- if (cp->selected()) {
- range_found = true;
- }
- }
-
- if (range_found) {
- for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
- if ((*i)->selected()) {
- _drag_points.push_back (*i);
- }
- }
- } else {
- for (uint32_t i = i1 ; i <= i2; i++) {
- _drag_points.push_back (nth (i));
- }
+ for (uint32_t i = i1; i <= i2; i++) {
+ _drag_points.push_back (nth (i));
}
start_drag_common (0, fraction);
start_drag_common (0, fraction);
}
+
+struct ControlPointSorter
+{
+ bool operator() (ControlPoint const * a, ControlPoint const * b) {
+ return a->get_x() < b->get_x();
+ }
+};
+
/** Common parts of starting a drag.
- * @param d Description of the drag.
- * @param x Starting x position in frames, or 0 if x is being ignored.
+ * @param x Starting x position in units, or 0 if x is being ignored.
* @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
*/
void
-AutomationLine::start_drag_common (nframes_t x, float fraction)
+AutomationLine::start_drag_common (double x, float fraction)
{
- drag_x = x;
- drag_distance = 0;
+ _drag_x = x;
+ _drag_distance = 0;
_last_drag_fraction = fraction;
_drag_had_movement = false;
did_push = false;
+
+ _drag_points.sort (ControlPointSorter ());
+
+ /* find the additional points that will be dragged when the user is holding
+ the "push" modifier
+ */
+
+ uint32_t i = _drag_points.back()->view_index () + 1;
+ ControlPoint* p = 0;
+ _push_points.clear ();
+ while ((p = nth (i)) != 0 && p->can_slide()) {
+ _push_points.push_back (p);
+ ++i;
+ }
}
/** Should be called to indicate motion during a drag.
- * @param x New x position of the drag in frames, or 0 if x is being ignored.
+ * @param x New x position of the drag in units, or undefined if ignore_x == true.
* @param fraction New y fraction.
+ * @return x position and y fraction that were actually used (once clamped).
*/
-void
-AutomationLine::drag_motion (nframes_t x, float fraction, bool with_push)
+pair<double, float>
+AutomationLine::drag_motion (double x, float fraction, bool ignore_x, bool with_push)
{
- int64_t const dx = x - drag_x;
- drag_distance += dx;
- drag_x = x;
-
+ /* setup the points that are to be moved this time round */
+ list<ControlPoint*> points = _drag_points;
+ if (with_push) {
+ copy (_push_points.begin(), _push_points.end(), back_inserter (points));
+ points.sort (ControlPointSorter ());
+ }
+
+ double dx = ignore_x ? 0 : (x - _drag_x);
double dy = fraction - _last_drag_fraction;
- _last_drag_fraction = fraction;
- /* clamp y so that the "lowest" point hits the bottom but goes no further
- and similarly with the "highest" and the top
- */
- for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
+ /* find x limits */
+ ControlPoint* before = 0;
+ ControlPoint* after = 0;
+
+ for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
+ if ((*i)->get_x() < points.front()->get_x()) {
+ before = *i;
+ }
+ if ((*i)->get_x() > points.back()->get_x() && after == 0) {
+ after = *i;
+ }
+ }
+
+ double const before_x = before ? before->get_x() : 0;
+ double const after_x = after ? after->get_x() : DBL_MAX;
+
+ /* clamp x */
+ for (list<ControlPoint*>::iterator i = points.begin(); i != points.end(); ++i) {
+
+ if ((*i)->can_slide() && !ignore_x) {
+
+ /* clamp min x */
+ double const a = (*i)->get_x() + dx;
+ double const b = before_x + 1;
+ if (a < b) {
+ dx += b - a;
+ }
+
+ /* clamp max x */
+ if (after) {
+
+ if (after_x - before_x < 2) {
+ /* after and before are very close, so just leave this alone */
+ dx = 0;
+ } else {
+ double const a = (*i)->get_x() + dx;
+ double const b = after_x - 1;
+ if (a > b) {
+ dx -= a - b;
+ }
+ }
+ }
+ }
+ }
+
+ /* clamp y */
+ for (list<ControlPoint*>::iterator i = points.begin(); i != points.end(); ++i) {
double const y = ((_height - (*i)->get_y()) / _height) + dy;
if (y < 0) {
dy -= y;
}
}
+ pair<double, float> const clamped (_drag_x + dx, _last_drag_fraction + dy);
+ _drag_distance += dx;
+ _drag_x = x;
+ _last_drag_fraction = fraction;
+
for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
+ (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - _height * dy, ControlPoint::Full);
+ reset_line_coords (**i);
+ }
- modify_view_point (
- **i,
- trackview.editor().unit_to_frame ((*i)->get_x()) + dx,
- ((_height - (*i)->get_y()) / _height) + dy,
- (x == 0),
- with_push
- );
+ if (with_push) {
+ /* move push points, preserving their y */
+ for (list<ControlPoint*>::iterator i = _push_points.begin(); i != _push_points.end(); ++i) {
+ (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y(), ControlPoint::Full);
+ reset_line_coords (**i);
+ }
}
if (line_points.size() > 1) {
_drag_had_movement = true;
did_push = with_push;
+
+ return clamped;
}
/** Should be called to indicate the end of a drag */
alist->freeze ();
- sync_model_with_view_points (_drag_points, did_push, drag_distance);
+ /* set up the points that were moved this time round */
+ list<ControlPoint*> points = _drag_points;
+ if (did_push) {
+ copy (_push_points.begin(), _push_points.end(), back_inserter (points));
+ points.sort (ControlPointSorter ());
+ }
+
+ sync_model_with_view_points (points, did_push, rint (_drag_distance * trackview.editor().get_current_zoom ()));
alist->thaw ();
as the main point moved.
*/
- alist->slide (mr.end, drag_distance);
+ alist->slide (mr.end, distance);
}
}
projects / ardour.git / blobdiff