private void MainGrid_MouseUp(object sender, MouseButtonEventArgs e)
{
Mouse.Capture(null);
MainGrid.MouseMove -= MainGrid_MouseMoveWhenDown;
MainGrid.MouseMove += MainGrid_MouseMoveWhenUp;
if (pmm != null)
{
pmm = null;
// End of visual feed-back, align on grid, and update ViewModel
// Round position to closest square on the grid
List <PositionOrientation> topLeftList = new List <PositionOrientation>();
foreach (WordAndCanvas wac in m_Sel.WordAndCanvasList)
{
WordCanvas wc = wac.WordCanvas;
int top = (int)Math.Floor((double)wc.GetValue(Canvas.TopProperty) / UnitSize + 0.5);
int left = (int)Math.Floor((double)wc.GetValue(Canvas.LeftProperty) / UnitSize + 0.5);
topLeftList.Add(new PositionOrientation(top, left, wac.WordPosition.IsVertical));
}
// Do not accept Illegal placements, adjust to only valid placements
AdjustToSuitableLocationInLayout(m_FixedLayout, m_Sel.WordAndCanvasList, topLeftList, true);
// Move to final, rounded position
viewModel.UpdateWordPositionLocation(m_Sel.WordAndCanvasList, topLeftList, true); // Update WordPosition with new location
MoveWordAndCanvasList(m_Sel.WordAndCanvasList); // Visual animation
FinalRefreshAfterUpdate();
}
}
internal void MoveWordAndCanvasList(IList <WordAndCanvas> wordAndCanvasList)
{
if (wordAndCanvasList == null)
{
throw new ArgumentNullException(nameof(wordAndCanvasList));
}
if (wordAndCanvasList.Count == 0)
{
throw new ArgumentException("Zero words in list", nameof(wordAndCanvasList));
}
// If bounding rectangle is updated, need to redraw background grid
BoundingRectangle r = viewModel.Layout.Bounds;
if (!r.Equals(gridBounding))
{
UpdateBackgroundGrid();
}
// Compute distance moved on 1st element to choose animation speed (duration)
WordPosition wp1 = wordAndCanvasList.First().WordPosition;
WordCanvas wc1 = wordAndCanvasList.First().WordCanvas;
double deltaX = (double)wc1.GetValue(Canvas.LeftProperty) - wp1.StartColumn * UnitSize;
double deltaY = (double)wc1.GetValue(Canvas.TopProperty) - wp1.StartRow * UnitSize;
double distance = Math.Sqrt(deltaX * deltaX + deltaY * deltaY);
// If distance is null, for instance after a selection click, we're done
if (distance <= 0.0001)
{
return;
}
// Group animations in a storyboard to simplify premature ending
var sb = new Storyboard();
var duration = new Duration(TimeSpan.FromSeconds(distance >= UnitSize ? 0.35 : 0.1));
finalMoveWordAnimationData = new List <(Canvas, DependencyProperty, double)>();
foreach (WordAndCanvas wac in wordAndCanvasList)
{
WordCanvas wc = wac.WordCanvas;
double finalLeftValue = wac.WordPosition.StartColumn * UnitSize;
DoubleAnimation daLeft = new DoubleAnimation
{
Duration = duration,
From = (double)wc.GetValue(Canvas.LeftProperty),
To = finalLeftValue
};
Storyboard.SetTarget(daLeft, wc);
Storyboard.SetTargetProperty(daLeft, new PropertyPath("Left"));
sb.Children.Add(daLeft);
finalMoveWordAnimationData.Add((wc, Canvas.LeftProperty, finalLeftValue));
double finalTopValue = wac.WordPosition.StartRow * UnitSize;
DoubleAnimation daTop = new DoubleAnimation
{
Duration = duration,
From = (double)wc.GetValue(Canvas.TopProperty),
To = finalTopValue
};
Storyboard.SetTarget(daTop, wc);
Storyboard.SetTargetProperty(daTop, new PropertyPath("Top"));
sb.Children.Add(daTop);
finalMoveWordAnimationData.Add((wc, Canvas.TopProperty, finalTopValue));
}
IsMoveWordAnimationInProgress = true;
sb.Completed += Sb_Completed;
sb.Begin();
}