keyframeview: implemented transforming keyframe times to and from sequence time

Since the node graph can have transform cross nodes, input keyframes may occur at a different times requiring transforming between sequence time and media time. This commit implements such a mechanism in all UI classes that need it.
2020-03-26 19:17:46 +11:00
parent 592171cc31
commit 3399227b3a
27 changed files with 389 additions and 144 deletions
@@ -0,0 +1,59 @@
+#include "timetargetobject.h"
+
+TimeTargetObject::TimeTargetObject() :
+  time_target_(nullptr),
+  path_index_(0)
+{
+}
+
+Node *TimeTargetObject::GetTimeTarget() const
+{
+  return time_target_;
+}
+
+void TimeTargetObject::SetTimeTarget(Node *target)
+{
+  time_target_ = target;
+
+  TimeTargetChangedEvent(time_target_);
+}
+
+void TimeTargetObject::SetPathIndex(int index)
+{
+  path_index_ = index;
+}
+
+rational TimeTargetObject::GetAdjustedTime(Node* from, Node* to, const rational &r, NodeParam::Type direction) const
+{
+  if (!from || !to) {
+    return r;
+  }
+
+  return GetAdjustedTime(from, to, TimeRange(r, r), direction).in();
+}
+
+TimeRange TimeTargetObject::GetAdjustedTime(Node* from, Node* to, const TimeRange &r, NodeParam::Type direction) const
+{
+  if (!from || !to) {
+    return r;
+  }
+
+  QList<TimeRange> adjusted = from->TransformTimeTo(r, to, direction);
+
+  if (adjusted.isEmpty()) {
+    return r;
+  }
+
+  return adjusted.at(path_index_);
+}
+
+/*int TimeTargetObject::GetNumberOfPathAdjustments(Node* from, NodeParam::Type direction) const
+{
+  if (!time_target_) {
+    return 0;
+  }
+
+  QList<TimeRange> adjusted = from->TransformTimeTo(TimeRange(), time_target_, direction);
+
+  return adjusted.size();
+}*/