public override void LeftButtonDrag(Pane pane, PointF location, PointF locationStart, float pixelSize, ref bool displayUpdateNeeded)
{
Debug.Assert(pane == Pane.Map);
// Get the new set of gaps.
LegGap[] newGaps = LegGap.AddGap(courseObjStart.path, courseObjStart.gaps, startDrag, location);
// Put the new gaps into the highlight.
courseObjDrag = new LegCourseObj(courseObjStart.controlId, courseObjStart.courseControlId, courseObjStart.courseControlId2,
courseObjStart.scaleRatio, courseObjStart.appearance, courseObjStart.path, newGaps);
displayUpdateNeeded = true;
}
// Create the objects associated with the leg from controlView1 to controlView2. Could be multiple because
// a leg may be partly flagged, and so forth. Gaps do not create separate course objects.
private static CourseObj[] CreateLeg(EventDB eventDB, float scaleRatio, CourseAppearance appearance, Id<CourseControl> courseControlId1, CourseView.ControlView controlView1, CourseView.ControlView controlView2, Id<Leg> legId)
{
ControlPoint control1 = eventDB.GetControl(controlView1.controlId);
ControlPoint control2 = eventDB.GetControl(controlView2.controlId);
Leg leg = (legId.IsNotNone) ? eventDB.GetLeg(legId) : null;
List<SymPath> paths = new List<SymPath>(); // paths for each segment of the leg.
List<LegGap[]> gapsList = new List<LegGap[]>(); // gaps for each segment of the leg.
List<bool> isFlagged = new List<bool>(); // indicates if each segment is flagged or not.
LegGap[] gaps; // What kind of gaps are present? Null array if none
// Get the path of the line, and the gaps.
SymPath legPath = GetLegPath(eventDB,
control1.location, controlView1.hiddenControl ? ControlPointKind.None : control1.kind, controlView1.controlId,
control2.location, controlView2.hiddenControl ? ControlPointKind.None : control2.kind, controlView2.controlId,
scaleRatio, appearance, out gaps);
if (legPath == null)
return null;
// What kind of flagging does this leg have (none/full/begin/end)?
FlaggingKind flagging = QueryEvent.GetLegFlagging(eventDB, controlView1.controlId, controlView2.controlId, legId);
// Based on flagging kind, set up the paths/isFlagged lists. Add in gaps as part of it.
if (flagging == FlaggingKind.Begin || flagging == FlaggingKind.End) {
// Flagging is partial. We need to split the path into two.
SymPath beginPath, endPath;
legPath.Split(leg.flagStartStop, out beginPath, out endPath);
paths.Add(beginPath);
gapsList.Add(gaps);
isFlagged.Add(flagging == FlaggingKind.Begin);
// Update gaps for the end part.
if (gaps != null) {
gaps = (LegGap[]) gaps.Clone();
for (int i = 0; i < gaps.Length; ++i)
gaps[i].distanceFromStart -= beginPath.Length;
}
paths.Add(endPath);
gapsList.Add(gaps);
isFlagged.Add(flagging == FlaggingKind.End);
}
else {
// flagging is not partial. A single path is OK.
paths.Add(legPath);
gapsList.Add(gaps);
isFlagged.Add(flagging == FlaggingKind.All);
}
// Create course objects for this leg from the paths/isFlagged lists.
CourseObj[] objs = new CourseObj[paths.Count];
for (int i = 0; i < paths.Count; ++i) {
if (isFlagged[i])
objs[i] = new FlaggedLegCourseObj(controlView1.controlId, courseControlId1, controlView2.courseControlIds[0], scaleRatio, appearance, paths[i], gapsList[i]);
else
objs[i] = new LegCourseObj(controlView1.controlId, courseControlId1, controlView2.courseControlIds[0], scaleRatio, appearance, paths[i], gapsList[i]);
}
return objs;
}
public AddLegGapMode(Controller controller, LegCourseObj courseObject)
{
this.controller = controller;
this.courseObjStart = courseObject;
this.courseObjDrag = (LegCourseObj) courseObject.Clone();
}