private bool _snapToUnselectedEdges(ref DateTime dt, TimeSpan snapSpan)
{
bool snapped = false;
UnsetState(TRB_PART.START | TRB_PART.END, TRB_STATE.SNAPPED_TO);
DateTime myDT_0 = dt - ptrAdjTS_0;
DateTime myDT_1 = dt - ptrAdjTS_1;
TimeSpan closeSpan = TimeSpan.MaxValue;
TimeBox trbClose = null;
TRB_PART closePart = TRB_PART.NONE;
TRB_PART movingPartThatSnapped = TRB_PART.NONE;
foreach (var proj in EachVisibleProject())
{
if (!proj.Visible)
{
continue;
}
;
foreach (var trb in proj.TimeBoxCollection)
{
if (trb.HasState(TRB_PART.WHOLE, TRB_STATE.NOT | TRB_STATE.SELECTED))
{
TimeSpan tmpSpan;
if (movingPart.HasFlag(TRB_PART.START))
{
tmpSpan = (trb.StartDate - myDT_0).Duration();
if (tmpSpan < closeSpan)
{
trbClose = trb;
closeSpan = tmpSpan;
closePart = TRB_PART.START;
movingPartThatSnapped = TRB_PART.START;
}
tmpSpan = (trb.EndDate - myDT_0).Duration();
if (tmpSpan < closeSpan)
{
trbClose = trb;
closeSpan = tmpSpan;
closePart = TRB_PART.END;
movingPartThatSnapped = TRB_PART.START;
}
}
if (movingPart.HasFlag(TRB_PART.END))
{
tmpSpan = (trb.StartDate - myDT_1).Duration();
if (tmpSpan < closeSpan)
{
trbClose = trb;
closeSpan = tmpSpan;
closePart = TRB_PART.START;
movingPartThatSnapped = TRB_PART.END;
}
tmpSpan = (trb.EndDate - myDT_1).Duration();
if (tmpSpan < closeSpan)
{
trbClose = trb;
closeSpan = tmpSpan;
closePart = TRB_PART.END;
movingPartThatSnapped = TRB_PART.END;
}
}
}
}
}
if (trbClose != null && closeSpan <= snapSpan)
{
snapped = true;
dt = (DateTime)trbClose.GetDateTime(closePart);
dt = dt + (movingPartThatSnapped == TRB_PART.START ? ptrAdjTS_0 : ptrAdjTS_1);
trbClose.SetState(closePart, TRB_STATE.SNAPPED_TO);
}
return(snapped);
}
public void MoveSelectedEdges(TimeBox trbClicked, TRB_PART partMov, DateTime dt, TimeSpan snapSpan,
TRB_ACTION action)
{
// rules..
// don't move other edges ???
if (action == TRB_ACTION.BEGIN)
{
startDT = dt;
ptrAdjTS_0 = dt - (DateTime)trbClicked.GetDateTime(TRB_PART.START);
ptrAdjTS_1 = dt - (DateTime)trbClicked.GetDateTime(TRB_PART.END);
// 1 unset all edges
UnsetState(TRB_PART.START | TRB_PART.END, TRB_STATE.SELECTED);
// 2 set edges accordingly
SetState(partMov, TRB_PART.WHOLE, TRB_STATE.SELECTED);
// 3. what edge are we moving, start or end?
movingPart = partMov;
TimeBox adj;
spanL = TimeSpan.MinValue;
spanR = TimeSpan.MaxValue;
if (movingPart.HasFlag(TRB_PART.START))
{
// left move
// 4. Get the minimum distance to the previous end
foreach (var proj in EachVisibleProject())
{
if (!proj.Visible)
{
continue;
}
foreach (var trb in proj.TimeBoxCollection)
{
if (trb.HasState(movingPart, TRB_STATE.SELECTED))
{
trb.StoreDates();
adj = _getAdj(trb, -1);
if (adj != null)
{
spanL = _max(spanL, adj.EndDate - trb.StartDate);
}
if (!movingPart.HasFlag(TRB_PART.END))
{
spanR = _min(spanR, trb.EndDate - trb.StartDate);
}
}
}
}
}
if (movingPart.HasFlag(TRB_PART.END))
{
// right move
// 5. Get the MAximuim distance to the next start
foreach (var proj in EachVisibleProject())
{
if (!proj.Visible)
{
continue;
}
foreach (var trb in proj.TimeBoxCollection)
{
if (trb.HasState(movingPart, TRB_STATE.SELECTED))
{
trb.StoreDates();
adj = _getAdj(trb, +1);
if (adj != null)
{
spanR = _min(spanR, adj.StartDate - trb.EndDate);
}
if (!movingPart.HasFlag(TRB_PART.START))
{
spanL = _max(spanL, trb.StartDate - trb.EndDate);
}
}
}
}
}
}
bool snapped = false;
if (snapSpan.TotalMinutes > 0)
{
// snap the active edge only
snapped = _snapToUnselectedEdges(ref dt, snapSpan);
}
TimeSpan spanDT = dt - startDT;
if (spanDT < spanL)
{
spanDT = spanL;
}
if (spanDT > spanR)
{
spanDT = spanR;
}
foreach (var proj in EachVisibleProject())
{
if (!proj.Visible)
{
continue;
}
foreach (var trb in proj.TimeBoxCollection)
{
if (trb.HasState(movingPart, TRB_STATE.SELECTED))
{
trb.ShiftDateTime(movingPart, spanDT);
}
}
}
if (snapped)
{
SetState(TRB_PART.END, TRB_PART.END, TRB_STATE.SELECTED, TRB_STATE.SNAPPED);
}
else
{
UnsetState(TRB_PART.END, TRB_PART.END, TRB_STATE.SELECTED, TRB_STATE.SNAPPED);
}
// finally snap the unsnapped to others nearest day
if (action == TRB_ACTION.FINISH)
{
// condition: Selected but not snapped
TimeBoxProcess(delegate(TimeBox trb)
{
if (trb.HasState(movingPart, TRB_STATE.SELECTED) &&
trb.HasState(movingPart, TRB_STATE.SNAPPED | TRB_STATE.NOT))
{
// snap to whole day
var myDT = (DateTime)trb.GetDateTime(movingPart);
var snapDT = FileChangeTable.Round(myDT, new TimeSpan(1, 0, 0, 0));
var thisSpan = snapDT - trb.GetStoredDateTime(movingPart);
if (thisSpan < spanL)
{
thisSpan = spanL;
}
if (thisSpan > spanR)
{
thisSpan = spanR;
}
trb.ShiftDateTime(movingPart, (TimeSpan)thisSpan);
}
});
foreach (var proj in EachVisibleProject())
{
if (!proj.Visible)
{
continue;
}
if (proj.HasState(TRB_PART.WHOLE, TRB_STATE.SELECTED))
{
proj.TimeBoxSort();
proj.TimeBoxMerge();
}
}
ActivityTraceBuilder.Buildv2(this);
movingPart = TRB_PART.NONE;
}
}