// Get the controls the define where to insert the new control point.
private void GetControlInsertionPoint(PointF pt, out CourseDesignator courseDesignator,
out Id <CourseControl> courseControlId1, out Id <CourseControl> courseControlId2,
out LegInsertionLoc legInsertionLoc)
{
SelectionMgr.SelectionInfo selection = selectionMgr.Selection;
courseDesignator = selection.ActiveCourseDesignator;
courseControlId1 = Id <CourseControl> .None;
courseControlId2 = Id <CourseControl> .None;
legInsertionLoc = LegInsertionLoc.Normal;
if (selection.SelectionKind == SelectionMgr.SelectionKind.Control &&
(courseDesignator.IsAllControls || QueryEvent.IsCourseControlInPart(eventDB, courseDesignator, selection.SelectedCourseControl)))
{
courseControlId1 = selection.SelectedCourseControl;
}
else if (selection.SelectionKind == SelectionMgr.SelectionKind.Leg)
{
courseControlId1 = selection.SelectedCourseControl;
courseControlId2 = selection.SelectedCourseControl2;
legInsertionLoc = selection.LegInsertionLoc;
}
else if (courseDesignator.IsNotAllControls)
{
// Not all control, and neight control or leg is selected. Use the closest leg.
QueryEvent.LegInfo leg = QueryEvent.FindClosestLeg(eventDB, courseDesignator, pt);
courseControlId1 = leg.courseControlId1;
courseControlId2 = leg.courseControlId2;
}
if (courseDesignator.IsNotAllControls)
{
QueryEvent.FindControlInsertionPoint(eventDB, courseDesignator, ref courseControlId1, ref courseControlId2, ref legInsertionLoc);
}
}
// Check the validate of the selected course view/selected object and update accordingly.
void UpdateSelection()
{
// Check the selection validity.
if (!activeCourseDesignator.IsAllControls && !eventDB.IsCoursePresent(activeCourseDesignator.CourseId)) {
// Active course was deleted. Switch to all controls.
activeCourseDesignator = CourseDesignator.AllControls;
ClearSelection();
}
// Check that variation still exists.
if (activeCourseDesignator.IsVariation && QueryEvent.HasVariations(eventDB, activeCourseDesignator.CourseId)) {
IEnumerable<VariationInfo> variations = QueryEvent.GetAllVariations(eventDB, activeCourseDesignator.CourseId);
if (!variations.Any(v => v.Equals(activeCourseDesignator.VariationInfo)))
activeCourseDesignator = activeCourseDesignator.WithAllVariations();
}
// Does the current part still exist?
int numberOfParts = QueryEvent.CountCourseParts(eventDB, activeCourseDesignator);
if (!activeCourseDesignator.IsAllControls && !activeCourseDesignator.AllParts &&
(numberOfParts == 1 || activeCourseDesignator.Part >= numberOfParts))
{
// No part that large any more.
if (numberOfParts > 1)
activeCourseDesignator = activeCourseDesignator.WithPart(numberOfParts - 1);
else
activeCourseDesignator = activeCourseDesignator.WithAllParts();
ClearSelection();
}
if (selectedCourseControl.IsNotNone && !eventDB.IsCourseControlPresent(selectedCourseControl)) {
// Selected course control is no longer there.
selectedCourseControl = Id<CourseControl>.None;
ClearSelection();
}
if (selectedCourseControl.IsNotNone && activeCourseDesignator.IsNotAllControls &&
(!activeCourseDesignator.AllParts || activeCourseDesignator.IsVariation) &&
!QueryEvent.IsCourseControlInPart(eventDB, activeCourseDesignator, selectedCourseControl)) {
// Selected course control is not in active part.
// Could be allowed if it's the finish.
Id<ControlPoint> controlId = eventDB.GetCourseControl(selectedCourseControl).control;
if (!(eventDB.IsControlPresent(controlId) &&
eventDB.GetControl(controlId).kind == ControlPointKind.Finish &&
QueryEvent.GetPartOptions(eventDB, activeCourseDesignator).ShowFinish))
{
selectedCourseControl = Id<CourseControl>.None;
ClearSelection();
}
}
if (selectedCourseControl2.IsNotNone && !eventDB.IsCourseControlPresent(selectedCourseControl2)) {
// Selected course control 2 is no longer there.
selectedCourseControl2 = Id<CourseControl>.None;
ClearSelection();
}
if (selectedCourseControl2.IsNotNone && activeCourseDesignator.IsNotAllControls && !activeCourseDesignator.AllParts &&
!QueryEvent.IsCourseControlInPart(eventDB, activeCourseDesignator, selectedCourseControl2)) {
// Selected course control 2 is not in active part.
selectedCourseControl2 = Id<CourseControl>.None;
ClearSelection();
}
if (selectedControl.IsNotNone && !eventDB.IsControlPresent(selectedControl)) {
// Selected control is no longer there.
ClearSelection();
}
if (selectedSpecial.IsNotNone && !eventDB.IsSpecialPresent(selectedSpecial)) {
// Selected special is no longer there.
ClearSelection();
}
if (selectedSpecial.IsNotNone && !(activeCourseDesignator.IsAllControls || QueryEvent.CourseContainsSpecial(eventDB, activeCourseDesignator, selectedSpecial))) {
// Selected special is not in current course
ClearSelection();
}
}