void GetNodeAndIndex(SharpTreeViewItem item, DropPlace place, out SharpTreeNode node, out int index)
{
node = null;
index = 0;
if (place == DropPlace.Inside)
{
node = item.Node;
index = node.Children.Count;
}
else if (place == DropPlace.Before)
{
if (item.Node.Parent != null)
{
node = item.Node.Parent;
index = node.Children.IndexOf(item.Node);
}
}
else
{
if (item.Node.Parent != null)
{
node = item.Node.Parent;
index = node.Children.IndexOf(item.Node) + 1;
}
}
}
public void OnDrop(DropPlace dropPlace)
{
droppedOnZone = true;
//dropPlaceBelow = dropPlace;
//transform.parent = dropPlace.transform;
}
void ShowPreview(SharpTreeViewItem item, DropPlace place)
{
previewNodeView = item.NodeView;
previewPlace = place;
if (place == DropPlace.Inside)
{
previewNodeView.TextBackground = SystemColors.HighlightBrush;
previewNodeView.Foreground = SystemColors.HighlightTextBrush;
}
else
{
if (insertMarker == null)
{
var adornerLayer = AdornerLayer.GetAdornerLayer(this);
var adorner = new GeneralAdorner(this);
insertMarker = new InsertMarker();
adorner.Child = insertMarker;
adornerLayer.Add(adorner);
}
insertMarker.Visibility = Visibility.Visible;
var p1 = previewNodeView.TransformToVisual(this).Transform(new Point());
var p = new Point(p1.X + previewNodeView.CalculateIndent() + 4.5, p1.Y - 3);
if (place == DropPlace.After)
{
p.Y += previewNodeView.ActualHeight;
}
insertMarker.Margin = new Thickness(p.X, p.Y, 0, 0);
SharpTreeNodeView secondNodeView = null;
var index = flattener.IndexOf(item.Node);
if (place == DropPlace.Before)
{
if (index > 0)
{
secondNodeView = (ItemContainerGenerator.ContainerFromIndex(index - 1) as SharpTreeViewItem).NodeView;
}
}
else if (index + 1 < flattener.Count)
{
secondNodeView = (ItemContainerGenerator.ContainerFromIndex(index + 1) as SharpTreeViewItem).NodeView;
}
var w = p1.X + previewNodeView.ActualWidth - p.X;
if (secondNodeView != null)
{
var p2 = secondNodeView.TransformToVisual(this).Transform(new Point());
w = Math.Max(w, p2.X + secondNodeView.ActualWidth - p.X);
}
insertMarker.Width = w + 10;
}
}
public async Task Add(DropPlace dropPlace)
{
var mappedDropPlace = AutoMapper.Mapper.Map <DropPlaceEntity>(dropPlace);
var dbContext = _dzuwenaliaDBContextFactory.Create();
dbContext.DropPlace.Add(mappedDropPlace);
await dbContext.SaveChanges();
}
public async Task Edit(DropPlace dropPlace)
{
var dbContext = _dzuwenaliaDBContextFactory.Create();
var dropPlaceToEdit = await dbContext.DropPlace.FirstAsync(x => x.Id == dropPlace.Id);
dropPlaceToEdit.XCoordinate = dropPlace.XCoordinate;
dropPlaceToEdit.YCoordinate = dropPlace.YCoordinate;
dropPlaceToEdit.DropType = dropPlace.DropType;
dropPlaceToEdit.DropDate = dropPlace.DropDate;
await dbContext.SaveChanges();
}
void TryAddDropTarget(List <DropTarget> targets, SharpTreeViewItem item, DropPlace place, DragEventArgs e)
{
SharpTreeNode node;
int index;
GetNodeAndIndex(item, place, out node, out index);
if (node != null)
{
e.Effects = DragDropEffects.None;
if (node.CanDrop(e, index))
{
DropTarget target = new DropTarget()
{
Item = item,
Place = place,
Node = node,
Index = index
};
targets.Add(target);
}
}
}
void TryAddDropTarget(List<DropTarget> targets, SharpTreeViewItem item, DropPlace place, DragEventArgs e)
{
SharpTreeNode node;
int index;
GetNodeAndIndex(item, place, out node, out index);
if (node != null) {
e.Effects = DragDropEffects.None;
if (node.CanDrop(e, index)) {
DropTarget target = new DropTarget() {
Item = item,
Place = place,
Node = node,
Index = index
};
targets.Add(target);
}
}
}
void ShowPreview(SharpTreeViewItem item, DropPlace place)
{
previewNodeView = item.NodeView;
previewPlace = place;
if (place == DropPlace.Inside) {
previewNodeView.TextBackground = SystemColors.HighlightBrush;
previewNodeView.Foreground = SystemColors.HighlightTextBrush;
}
else {
if (insertMarker == null) {
var adornerLayer = AdornerLayer.GetAdornerLayer(this);
var adorner = new GeneralAdorner(this);
insertMarker = new InsertMarker();
adorner.Child = insertMarker;
adornerLayer.Add(adorner);
}
insertMarker.Visibility = Visibility.Visible;
var p1 = previewNodeView.TransformToVisual(this).Transform(new Point());
var p = new Point(p1.X + previewNodeView.CalculateIndent() + 4.5, p1.Y - 3);
if (place == DropPlace.After) {
p.Y += previewNodeView.ActualHeight;
}
insertMarker.Margin = new Thickness(p.X, p.Y, 0, 0);
SharpTreeNodeView secondNodeView = null;
var index = flattener.IndexOf(item.Node);
if (place == DropPlace.Before) {
if (index > 0) {
secondNodeView = (ItemContainerGenerator.ContainerFromIndex(index - 1) as SharpTreeViewItem).NodeView;
}
}
else if (index + 1 < flattener.Count) {
secondNodeView = (ItemContainerGenerator.ContainerFromIndex(index + 1) as SharpTreeViewItem).NodeView;
}
var w = p1.X + previewNodeView.ActualWidth - p.X;
if (secondNodeView != null) {
var p2 = secondNodeView.TransformToVisual(this).Transform(new Point());
w = Math.Max(w, p2.X + secondNodeView.ActualWidth - p.X);
}
insertMarker.Width = w + 10;
}
}
void GetNodeAndIndex(SharpTreeViewItem item, DropPlace place, out SharpTreeNode node, out int index)
{
node = null;
index = 0;
if (place == DropPlace.Inside) {
node = item.Node;
index = node.Children.Count;
}
else if (place == DropPlace.Before) {
if (item.Node.Parent != null) {
node = item.Node.Parent;
index = node.Children.IndexOf(item.Node);
}
}
else {
if (item.Node.Parent != null) {
node = item.Node.Parent;
index = node.Children.IndexOf(item.Node) + 1;
}
}
}
