private void MouseUp_DragMoving(Point gridLocation)
{
m_lastSingleSelectedElementLocation = gridLocation;
elementsFinishedMoving(ElementMoveType.Move);
endAllDrag();
CurrentDragSnapPoints.Clear();
}
private void MouseUp_HResizing(Point gridLocation)
{
elementsFinishedMoving(ElementMoveType.Resize);
CurrentDragSnapPoints.Clear();
}
private void calculateSnapPoints()
{
if (!EnableSnapTo)
{
return;
}
// build up a full set of snap points/details, from (a) the static snap points for the grid, and
// (b) calculated snap points for this move (ie. other elements in the row[s]).
// iterate through the rows, calculating snap points for every single element in each row that has any selected elements
foreach (Row row in Rows.Where(x => x.Visible))
{
// This would skip generating snap points for elements on any rows that have nothing selected.
// However, we still need to do that; as we might be dragging elements vertically into rows that
// (currently) have nothing selected. So we'll generate for everything, but that's going to be
// quite overkill. So, the big TODO: here is to regenerate element snap points for only rows with
// selected elements, but also regenerate them whenever we move vertically.
foreach (Element element in row)
{
// skip it if it's a selected element; we don't want to snap to them, as they'll be moving as well
if (element.Selected)
{
continue;
}
// if it's a non-selected element, generate snap points for it; for the start and end times. Also record the
// row its from in the generated point, so when snapping we can check against only elements from this row.
SnapDetails details = CalculateSnapDetailsForPoint(element.StartTime, SnapPriorityForElements, Color.Empty);
details.SnapRow = row;
if (!CurrentDragSnapPoints.ContainsKey(details.SnapTime))
{
CurrentDragSnapPoints[details.SnapTime] = new List <SnapDetails>();
}
CurrentDragSnapPoints[details.SnapTime].Add(details);
details = CalculateSnapDetailsForPoint(element.EndTime, SnapPriorityForElements, Color.Empty);
details.SnapRow = row;
if (!CurrentDragSnapPoints.ContainsKey(details.SnapTime))
{
CurrentDragSnapPoints[details.SnapTime] = new List <SnapDetails>();
}
CurrentDragSnapPoints[details.SnapTime].Add(details);
}
}
//Add in our static snap points as a copy so they are not modified
foreach (var staticSnapPoint in StaticSnapPoints)
{
if (CurrentDragSnapPoints.ContainsKey(staticSnapPoint.Key))
{
CurrentDragSnapPoints[staticSnapPoint.Key].AddRange(staticSnapPoint.Value);
}
else
{
CurrentDragSnapPoints.Add(staticSnapPoint.Key, staticSnapPoint.Value);
}
}
}
