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();
}
}
// Initial drawing of for current model layout
internal IList <WordAndCanvas> AddCanvasForWordPositionList(IEnumerable <WordPosition> wordPositionList)
{
List <WordAndCanvas> wordAndCanvasList = new List <WordAndCanvas>();
// Draw letters
foreach (WordPosition wp in wordPositionList)
{
WordCanvas wc = new WordCanvas(wp);
WordAndCanvas wac = new WordAndCanvas(wp, wc);
DrawingCanvas.Children.Add(wc);
m_WordAndCanvasList.Add(wac);
wordAndCanvasList.Add(wac);
}
return(wordAndCanvasList);
}
// Helper, this was originally in MainGrid_MouseDown handler, but when a right-click occurs,
// it is assumed than it will select automatically a non-selected word, so code got promoted to its own function...
private void UpdateSelectionAfterClick(MouseButtonEventArgs e)
{
if (DrawingCanvas.InputHitTest(e.GetPosition(DrawingCanvas)) is TextBlock hitTextBlock)
{
WordCanvas hitC = hitTextBlock.Parent as WordCanvas;
WordAndCanvas hit = m_WordAndCanvasList.FirstOrDefault(wac => ReferenceEquals(wac.WordCanvas, hitC));
Debug.Assert(hit != null);
//Debug.WriteLine("Hit " + hit.WordPosition.ToString());
// If Ctrl key is NOT pressed, clear previous selection
// But if we click again in something already selected, do not clear selection!
if (!Keyboard.IsKeyDown(Key.LeftCtrl) && !Keyboard.IsKeyDown(Key.RightCtrl))
{
if (m_Sel.WordAndCanvasList != null && !m_Sel.WordAndCanvasList.Contains(hit))
{
m_Sel.Clear();
}
}
// Add current word to selection
m_Sel.Add(hit);
// If Shift key is pressed, selection is extended to connected words
if (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))
{
//viewModel.Layout.GetConnectedWordPositions(hitWP).ForEach(connected => AddWordPositionToSelection(connected));
foreach (WordPosition connected in viewModel.Layout.GetConnectedWordPositions(hit.WordPosition))
{
m_Sel.Add(m_WordAndCanvasList.FirstOrDefault(wac => wac.WordPosition == connected));
}
}
// Remove and add again elements to move so they're displayed above non-moved elements
//foreach (WordCanvas wc in m_Sel.WordPositionList.Select(wp => Map.GetWordCanvasFromWordPosition(wp)))
foreach (WordCanvas wc in m_Sel.WordAndCanvasList.Select(wac => wac.WordCanvas))
{
DrawingCanvas.Children.Remove(wc);
DrawingCanvas.Children.Add(wc);
wc.SetColor(Brushes.White, Brushes.DarkBlue);
}
}
}
// Separate from MainGrid_MouseDown to reduce complexity
private Action <Point> GetMouseDownMoveAction()
{
// Need a layout without moved word to validate placement
m_FixedLayout = viewModel.GetLayoutExcludingWordPositionList(m_Sel.WordAndCanvasList.Select(wac => wac.WordPosition));
// Reverse-transform mouse Grid coordinates into DrawingCanvas coordinates
Matrix m = MainMatrixTransform.Matrix;
m.Invert(); // To convert from screen transformed coordinates into ideal grid
// coordinates starting at (0,0) with a square side of UnitSize
List <Vector> clickOffsetList = new List <Vector>(m_Sel.WordAndCanvasList.Count);
clickOffsetList.AddRange(m_Sel.WordAndCanvasList
.Select(wac => new Point((double)wac.WordCanvas.GetValue(Canvas.LeftProperty), (double)wac.WordCanvas.GetValue(Canvas.TopProperty)))
.Select(canvasTopLeft => canvasTopLeft - m.Transform(previousMousePosition)));
// When moving, point is current mouse in ideal grid coordinates
return(point =>
{
// Just move selected WordCanvas
for (int i = 0; i < m_Sel.WordAndCanvasList.Count; i++)
{
double preciseTop = point.Y + clickOffsetList[i].Y;
double preciseLeft = point.X + clickOffsetList[i].X;
WordCanvas wc = m_Sel.WordAndCanvasList[i].WordCanvas;
wc.SetValue(Canvas.TopProperty, preciseTop);
wc.SetValue(Canvas.LeftProperty, preciseLeft);
// Round position to closest square on the grid
int top = (int)Math.Floor(preciseTop / UnitSize + 0.5);
int left = (int)Math.Floor(preciseLeft / UnitSize + 0.5);
PlaceWordStatus status = EditorViewModel.CanPlaceWordAtPositionInLayout(m_FixedLayout, m_Sel.WordAndCanvasList[i].WordPosition, new PositionOrientation(top, left, m_Sel.WordAndCanvasList[i].WordPosition.IsVertical));
RecolorizeWord(m_Sel.WordAndCanvasList[i], status);
}
});
}
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();
}
