public void ReOrderOptionGroups(int sourceIndex, int targetIndex)
{
IOptionGroupViewModel sourceViewModel = this.OptionGroups[sourceIndex];
this.OptionGroups.RemoveAt(sourceIndex);
this.EditedCharacter.RemoveOptionGroupAt(sourceIndex);
this.OptionGroups.Insert(targetIndex, sourceViewModel);
this.EditedCharacter.InsertOptionGroup(targetIndex, sourceViewModel.OptionGroup);
this.eventAggregator.GetEvent <SaveCrowdEvent>().Publish(null);
}
private void GroupBox_PreviewDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(Constants.OPTION_DRAG_KEY))
{
expanderExpandedForDrop = false;
GroupBox groupBox = (GroupBox)sender;
Tuple <IOptionGroupViewModel, int, ICharacterOption> dragDropDataTuple = e.Data.GetData(Constants.OPTION_DRAG_KEY) as Tuple <IOptionGroupViewModel, int, ICharacterOption>;
if (dragDropDataTuple != null)
{
IOptionGroupViewModel sourceViewModel = dragDropDataTuple.Item1;
int sourceIndex = dragDropDataTuple.Item2;
ICharacterOption option = dragDropDataTuple.Item3;
if (this.viewModel.OptionGroup.Type == OptionType.Mixed && sourceViewModel.OptionGroup.Type != OptionType.Mixed) // do a copy paste
{
sourceIndex = -1;
}
int targetIndex = 0;
ListBoxItem listBoxItem;
FindDropTarget(groupBox, out listBoxItem, e);
if (listBoxItem != null)
{
ICharacterOption target = listBoxItem.DataContext as ICharacterOption;
if (dragDropDataTuple != null && target != null)
{
targetIndex = optionListBox.Items.IndexOf(target);
}
}
else
{
targetIndex = optionListBox.Items != null ? optionListBox.Items.Count : 0; // append to last of current option group
if (sourceIndex >= 0 && this.viewModel == sourceViewModel) // an item will be removed from the current option group, so reduce target index by 1
{
targetIndex -= 1;
}
}
if (sourceViewModel != null && sourceIndex >= 0)
{
sourceViewModel.RemoveOption(sourceIndex);
}
this.viewModel.InsertOption(targetIndex, option);
this.viewModel.SaveOptionGroup();
}
}
}
public OptionGroupView()
{
InitializeComponent();
this.DataContextChanged += (sender, e) =>
{
this.viewModel = this.DataContext as IOptionGroupViewModel;
this.viewModel.EditModeEnter += viewModel_EditModeEnter;
this.viewModel.EditModeLeave += viewModel_EditModeLeave;
};
Style itemContainerStyle = this.optionListBox.ItemContainerStyle;
if (itemContainerStyle != null && itemContainerStyle.Setters != null)
{
itemContainerStyle.Setters.Add(new Setter(ListBoxItem.AllowDropProperty, true));
itemContainerStyle.Setters.Add(new EventSetter(ListBoxItem.PreviewMouseLeftButtonDownEvent, new MouseButtonEventHandler(ListBoxItem_PreviewMouseLeftButtonDown)));
itemContainerStyle.Setters.Add(new EventSetter(ListBoxItem.PreviewMouseLeftButtonUpEvent, new MouseButtonEventHandler(ListBoxItem_PreviewMouseLeftButtonUp)));
}
}
private void ListView_PreviewDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(Constants.OPTION_GROUP_DRAG_KEY))
{
string draggingOPtionGroupName = e.Data.GetData(Constants.OPTION_GROUP_DRAG_KEY) as string;
ListViewItem listViewItem;
FindDropTarget(sender as ListView, out listViewItem, e);
if (listViewItem != null)
{
IOptionGroupViewModel targetViewModel = listViewItem.DataContext as IOptionGroupViewModel;
if (targetViewModel.OptionGroup.Name != draggingOPtionGroupName)
{
var sourceViewModel = this.viewModel.OptionGroups.FirstOrDefault(vm => vm.OptionGroup.Name == draggingOPtionGroupName);
int sourceIndex = this.viewModel.OptionGroups.IndexOf(sourceViewModel);
int targetIndex = this.viewModel.OptionGroups.IndexOf(targetViewModel);
this.viewModel.ReOrderOptionGroups(sourceIndex, targetIndex);
}
}
}
}
private void grpBoxOptionGroup_PreviewDragOver(object sender, DragEventArgs e)
{
if (!e.Data.GetDataPresent(Constants.OPTION_DRAG_KEY) || sender == e.Source)
{
e.Effects = DragDropEffects.None;
}
else
{
Tuple <IOptionGroupViewModel, int, ICharacterOption> dragDropDataTuple = e.Data.GetData(Constants.OPTION_DRAG_KEY) as Tuple <IOptionGroupViewModel, int, ICharacterOption>;
IOptionGroupViewModel sourceViewModel = dragDropDataTuple.Item1;
if (sourceViewModel != this.viewModel && this.viewModel.OptionGroup.Type != OptionType.Mixed)
{
e.Effects = DragDropEffects.None;
}
}
if (e.Effects != DragDropEffects.None && !this.ExpanderOptionGroup.IsExpanded)
{
this.ExpanderOptionGroup.IsExpanded = expanderExpandedForDrop = true;
}
e.Handled = true;
}
