private void select(int value)
{
if (value == -1) // Unselect
{
_selectedIndex = value;
}
else if (value < _panel.Children.Count)
{
_selectedIndex = value;
}
else // Selecting index beyond the scope
{
_selectedIndex = -1;
}
if (CurrentlySelected != null)
{
CurrentlySelected.__unselect();
}
if (_selectedIndex == -1)
{
CurrentlySelected = null;
return;
}
UIElement sel = _panel.Children[value];
MySelectableListItem newlySelectedItem = backMapping[sel];
CurrentlySelected = newlySelectedItem;
CurrentlySelected.__select();
}
private void handleSelectionDispatch(MySelectableListItem lastSelected, MySelectableListItem newSelected)
{
if (lastSelected != newSelected)
{
_currentlySelected = newSelected;
SelectionChange(lastSelected, newSelected);
}
}
public void MoveItemBeforeItem(MySelectableListItem what, MySelectableListItem beforeWhat)
{
_panel.Children.Remove(what.Element);
_panel.Children.Insert(_panel.Children.IndexOf(beforeWhat.Element), what.Element);
if (_selectedIndex != -1)
{
_selectedIndex = _panel.Children.IndexOf(CurrentlySelected.Element);
}
SelectionChange(CurrentlySelected, CurrentlySelected);
}
public void Remove(MySelectableListItem element)
{
_panel.Children.Remove(element.Element);
element.__setList(null);
backMapping.Remove(element.Element);
if (CurrentlySelected == element)
{
CurrentlySelected = null;
SelectedIndex = -1;
}
}
public void SelectMe(MySelectableListItem item)
{
int indexss = _panel.Children.IndexOf(item.Element);
if (item != CurrentlySelected)
{
int index = _panel.Children.IndexOf(item.Element);
if (index >= 0)
{
SelectedIndex = index;
}
}
}
public void MoveItemDown(MySelectableListItem item)
{
int index = _panel.Children.IndexOf(item.Element);
if (index >= 0 && index < _panel.Children.Count - 1)// Can move down
{
UIElement there = _panel.Children[index];
_panel.Children.RemoveAt(index);
_panel.Children.Insert(index + 1, there);
if (item == CurrentlySelected)
{
_selectedIndex++;
}
SelectionChange(CurrentlySelected, CurrentlySelected);
}
}
public void MoveItemUp(MySelectableListItem item)
{
int index = _panel.Children.IndexOf(item.Element);
if (index > 0) // Can move up
{
UIElement there = _panel.Children[index];
_panel.Children.RemoveAt(index);
_panel.Children.Insert(index - 1, there);
if (item == CurrentlySelected)
{
_selectedIndex--;
}
SelectionChange(CurrentlySelected, CurrentlySelected);
}
}
public void SelectNextItem(MySelectableListItem item)
{
int index = _panel.Children.IndexOf(item.Element);
int count = _panel.Children.Count;
if (index == count - 1) // Keep selection
{
return;
}
if (index < 0 || index >= count)
{
SelectedIndex = -1;
}
else
{
SelectedIndex = index + 1;
}
}
public void SelectPreviousItem(MySelectableListItem item)
{
int index = _panel.Children.IndexOf(item.Element);
int count = _panel.Children.Count;
if (index == 0)
{
return;
}
if (index < 0 || index >= count)
{
SelectedIndex = -1;
}
else
{
SelectedIndex = index - 1;
}
}
public void Add(MySelectableListItem element)
{
_panel.Children.Add(element.Element);
element.__setList(this);
backMapping.Add(element.Element, element);
}
public void DoubleClickMe(MySelectableListItem item)
{
SelectMe(item);
DoubleClick(item);
}