public ChainViewer(Chain chain, bool backgroundBorder = false)
{
InitializeComponent();
_chain = chain;
_chain.Viewer = this;
DeviceContextMenuBefore = (ContextMenu)this.Resources["DeviceContextMenuBefore"];
DeviceContextMenuBefore.AddHandler(MenuItem.ClickEvent, DeviceContextMenu_Click);
DeviceContextMenuAfter = (ContextMenu)this.Resources["DeviceContextMenuAfter"];
DeviceContextMenuAfter.AddHandler(MenuItem.ClickEvent, DeviceContextMenu_Click);
this.AddHandler(DragDrop.DropEvent, Drop);
this.AddHandler(DragDrop.DragOverEvent, DragOver);
for (int i = 0; i < _chain.Count; i++)
{
Contents_Insert(i, _chain[i]);
}
if (backgroundBorder)
{
this.Get <Grid>("Root").Children.Insert(0, new DeviceBackground());
Background = (IBrush)Application.Current.Styles.FindResource("ThemeControlDarkenBrush");
}
}
private void Unloaded(object sender, VisualTreeAttachmentEventArgs e)
{
_chain.Viewer = null;
_chain = null;
DeviceContextMenuBefore.RemoveHandler(MenuItem.ClickEvent, DeviceContextMenu_Click);
DeviceContextMenuAfter.RemoveHandler(MenuItem.ClickEvent, DeviceContextMenu_Click);
DeviceContextMenuBefore = DeviceContextMenuAfter = null;
this.RemoveHandler(DragDrop.DropEvent, Drop);
this.RemoveHandler(DragDrop.DragOverEvent, DragOver);
}
private void Click(object sender, PointerReleasedEventArgs e)
{
if (e.MouseButton == MouseButton.Right)
{
if (sender == DropZoneBefore)
{
DeviceContextMenuBefore.Open((Control)sender);
}
else if (sender == DropZoneAfter)
{
DeviceContextMenuAfter.Open((Control)sender);
}
}
e.Handled = true;
}
