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-rw-r--r--gtk2_ardour/editor_markers.cc183
1 files changed, 177 insertions, 6 deletions
diff --git a/gtk2_ardour/editor_markers.cc b/gtk2_ardour/editor_markers.cc
index 7b0f56776c..3f9c65a4c2 100644
--- a/gtk2_ardour/editor_markers.cc
+++ b/gtk2_ardour/editor_markers.cc
@@ -65,6 +65,9 @@ Editor::add_new_location (Location *location)
LocationMarkers *lam = new LocationMarkers;
uint32_t color;
+ /* make a note here of which group this marker ends up in */
+ ArdourCanvas::Group* group = 0;
+
if (location->is_cd_marker()) {
color = location_cd_marker_color;
} else if (location->is_mark()) {
@@ -81,30 +84,38 @@ Editor::add_new_location (Location *location)
if (location->is_cd_marker() && ruler_cd_marker_action->get_active()) {
lam->start = new Marker (*this, *cd_marker_group, *cursor_group, color, location->name(), Marker::Mark, location->start());
- }
- else {
+ group = cd_marker_group;
+ } else {
lam->start = new Marker (*this, *marker_group, *cursor_group, color, location->name(), Marker::Mark, location->start());
+ group = marker_group;
}
- lam->end = 0;
+
+ lam->end = 0;
} else if (location->is_auto_loop()) {
+
// transport marker
lam->start = new Marker (*this, *transport_marker_group, *cursor_group, color,
location->name(), Marker::LoopStart, location->start());
lam->end = new Marker (*this, *transport_marker_group, *cursor_group, color,
location->name(), Marker::LoopEnd, location->end());
+ group = transport_marker_group;
} else if (location->is_auto_punch()) {
+
// transport marker
lam->start = new Marker (*this, *transport_marker_group, *cursor_group, color,
location->name(), Marker::PunchIn, location->start());
lam->end = new Marker (*this, *transport_marker_group, *cursor_group, color,
location->name(), Marker::PunchOut, location->end());
-
+ group = transport_marker_group;
+
} else if (location->is_session_range()) {
+
// session range
lam->start = new Marker (*this, *marker_group, *cursor_group, color, _("start"), Marker::SessionStart, location->start());
lam->end = new Marker (*this, *marker_group, *cursor_group, color, _("end"), Marker::SessionEnd, location->end());
+ group = marker_group;
} else {
// range marker
@@ -113,12 +124,13 @@ Editor::add_new_location (Location *location)
location->name(), Marker::RangeStart, location->start());
lam->end = new Marker (*this, *cd_marker_group, *cursor_group, color,
location->name(), Marker::RangeEnd, location->end());
- }
- else {
+ group = cd_marker_group;
+ } else {
lam->start = new Marker (*this, *range_marker_group, *cursor_group, color,
location->name(), Marker::RangeStart, location->start());
lam->end = new Marker (*this, *range_marker_group, *cursor_group, color,
location->name(), Marker::RangeEnd, location->end());
+ group = range_marker_group;
}
}
@@ -148,6 +160,17 @@ Editor::add_new_location (Location *location)
lam->canvas_height_set (_canvas_height);
lam->set_show_lines (_show_marker_lines);
+
+ /* Add these markers to the appropriate sorted marker lists, which will render
+ them unsorted until the update_marker_labels() below sorts them out.
+ */
+ _sorted_marker_lists[group].push_back (lam->start);
+ if (lam->end) {
+ _sorted_marker_lists[group].push_back (lam->end);
+ }
+
+ /* Do a full update of the markers in this group */
+ update_marker_labels (group);
}
void
@@ -170,6 +193,154 @@ Editor::location_changed (Location *location)
} else if (location->is_auto_punch()) {
update_punch_range_view ();
}
+
+ check_marker_label (lam->start);
+ if (lam->end) {
+ check_marker_label (lam->end);
+ }
+}
+
+/** Look at a marker and check whether its label, and those of the previous and next markers,
+ * need to have their labels updated (in case those labels need to be shortened or can be
+ * lengthened)
+ */
+void
+Editor::check_marker_label (Marker* m)
+{
+ /* Get a time-ordered list of markers from the last time anything changed */
+ std::list<Marker*>& sorted = _sorted_marker_lists[m->get_parent()];
+
+ list<Marker*>::iterator i = find (sorted.begin(), sorted.end(), m);
+
+ list<Marker*>::iterator prev = sorted.end ();
+ list<Marker*>::iterator next = i;
+ ++next;
+
+ /* Look to see if the previous marker is still behind `m' in time */
+ if (i != sorted.begin()) {
+
+ prev = i;
+ --prev;
+
+ if ((*prev)->position() > m->position()) {
+ /* This marker is no longer in the correct order with the previous one, so
+ * update all the markers in this group.
+ */
+ update_marker_labels (m->get_parent ());
+ return;
+ }
+ }
+
+ /* Look to see if the next marker is still ahead of `m' in time */
+ if (next != sorted.end() && (*next)->position() < m->position()) {
+ /* This marker is no longer in the correct order with the next one, so
+ * update all the markers in this group.
+ */
+ update_marker_labels (m->get_parent ());
+ return;
+ }
+
+ if (prev != sorted.end()) {
+
+ /* Update just the available space between the previous marker and this one */
+
+ double const p = frame_to_pixel (m->position() - (*prev)->position());
+
+ if (m->label_on_left()) {
+ (*prev)->set_right_label_limit (p / 2);
+ } else {
+ (*prev)->set_right_label_limit (p);
+ }
+
+ if ((*prev)->label_on_left ()) {
+ m->set_left_label_limit (p);
+ } else {
+ m->set_left_label_limit (p / 2);
+ }
+ }
+
+ if (next != sorted.end()) {
+
+ /* Update just the available space between this marker and the next */
+
+ double const p = frame_to_pixel ((*next)->position() - m->position());
+
+ if ((*next)->label_on_left()) {
+ m->set_right_label_limit (p / 2);
+ } else {
+ m->set_right_label_limit (p);
+ }
+
+ if (m->label_on_left()) {
+ (*next)->set_left_label_limit (p);
+ } else {
+ (*next)->set_left_label_limit (p / 2);
+ }
+ }
+}
+
+struct MarkerComparator {
+ bool operator() (Marker const * a, Marker const * b) {
+ return a->position() < b->position();
+ }
+};
+
+/** Update all marker labels in all groups */
+void
+Editor::update_marker_labels ()
+{
+ for (std::map<ArdourCanvas::Group *, std::list<Marker *> >::iterator i = _sorted_marker_lists.begin(); i != _sorted_marker_lists.end(); ++i) {
+ update_marker_labels (i->first);
+ }
+}
+
+/** Look at all markers in a group and update label widths */
+void
+Editor::update_marker_labels (ArdourCanvas::Group* group)
+{
+ list<Marker*>& sorted = _sorted_marker_lists[group];
+
+ if (sorted.empty()) {
+ return;
+ }
+
+ /* We sort the list of markers and then set up the space available between each one */
+
+ sorted.sort (MarkerComparator ());
+
+ list<Marker*>::iterator i = sorted.begin ();
+
+ list<Marker*>::iterator prev = sorted.end ();
+ list<Marker*>::iterator next = i;
+ ++next;
+
+ while (i != sorted.end()) {
+
+ if (prev != sorted.end()) {
+ double const p = frame_to_pixel ((*i)->position() - (*prev)->position());
+
+ if ((*prev)->label_on_left()) {
+ (*i)->set_left_label_limit (p);
+ } else {
+ (*i)->set_left_label_limit (p / 2);
+ }
+
+ }
+
+ if (next != sorted.end()) {
+ double const p = frame_to_pixel ((*next)->position() - (*i)->position());
+
+ if ((*next)->label_on_left()) {
+ (*i)->set_right_label_limit (p / 2);
+ } else {
+ (*i)->set_right_label_limit (p);
+ }
+ }
+
+ prev = i;
+ ++i;
+ ++next;
+ }
}
void
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-16 16:07:08 +0000