private void ActivateEntries(int position)
{
if (_entries == null)
{
return;
}
int currentModuleIndex;
_dropDownBar.GetCurrentSelection(ModuleComboBoxId, out currentModuleIndex);
ModuleEntry newModule = _entries.LocateModule(position);
Debug.Assert(newModule != null);
MethodEntry newMethod = newModule.LocateMethod(position);
int newMethodIndex = newMethod != null ? newMethod.Index : -1;
if (newModule.Index != currentModuleIndex)
{
_dropDownBar.SetCurrentSelection(ModuleComboBoxId, newModule.Index);
_dropDownBar.RefreshCombo(MethodComboBoxId, newMethodIndex);
}
else
{
int currentMethodIndex;
_dropDownBar.GetCurrentSelection(MethodComboBoxId, out currentMethodIndex);
if (newMethodIndex != currentMethodIndex)
{
_dropDownBar.SetCurrentSelection(MethodComboBoxId, newMethodIndex);
}
}
}
private void FindActiveTopLevelComboSelection(int newPosition, ReadOnlyCollection <DropDownEntryInfo> topLevel)
{
if (_dropDownBar == null)
{
return;
}
int oldTopLevel = _curTopLevelIndex;
// left side has changed
bool found = false;
for (int i = 0; i < topLevel.Count; i++)
{
if (newPosition >= topLevel[i].Start.Index && newPosition <= topLevel[i].End.Index)
{
_curTopLevelIndex = i;
// we found a new left hand side
if (oldTopLevel == -1)
{
// we've selected something new, we need to refresh the combo to
// to remove the grayed out entry
_dropDownBar.RefreshCombo(TopLevelComboBoxId, i);
}
else
{
// changing from one top-level to another, just update the selection
_dropDownBar.SetCurrentSelection(TopLevelComboBoxId, i);
}
// update the nested entries
CalculateNestedEntries();
_dropDownBar.RefreshCombo(NestedComboBoxId, 0);
UpdateNestedComboSelection(newPosition);
found = true;
break;
}
}
if (!found)
{
// there's no associated entry, we should disable the bar
_curTopLevelIndex = -1;
_curNestedIndex = -1;
if (oldTopLevel != -1)
{
// we need to refresh to clear both combo boxes since there is no associated entry
_dropDownBar.RefreshCombo(TopLevelComboBoxId, -1);
_dropDownBar.RefreshCombo(NestedComboBoxId, -1);
}
}
UpdateNestedComboSelection(newPosition);
}
private void CaretPositionChanged(object sender, CaretPositionChangedEventArgs e)
{
int newPosition = e.NewPosition.BufferPosition.Position;
List <KeyValuePair <int, int> > changes = new List <KeyValuePair <int, int> >();
lock (_navigationsLock) {
var cur = _navigations;
for (int level = 0; level < _curSelection.Length; level++)
{
if (cur == null)
{
// no valid children, we'll invalidate these...
changes.Add(new KeyValuePair <int, int>(_curSelection[level], -1));
continue;
}
bool found = false;
if (cur.Children != null)
{
for (int i = 0; i < cur.Children.Length; i++)
{
if (newPosition >= cur.Children[i].Span.Start && newPosition <= cur.Children[i].Span.End)
{
changes.Add(new KeyValuePair <int, int>(_curSelection[level], i));
_curSelection[level] = i;
cur = cur.Children[i];
found = true;
break;
}
}
}
if (!found)
{
// continue processing to update the subselections...
cur = null;
changes.Add(new KeyValuePair <int, int>(_curSelection[level], -1));
_curSelection[level] = -1;
}
}
}
for (int i = 0; i < changes.Count; i++)
{
var change = changes[i];
var oldValue = change.Key;
var newValue = change.Value;
if (_dropDownBar != null && oldValue != newValue)
{
if (oldValue == -1 || newValue == -1)
{
// we've selected something new, we need to refresh the combo to
// to remove the grayed out entry
_dropDownBar.RefreshCombo(i, newValue);
}
else
{
// changing from one top-level to another, just update the selection
_dropDownBar.SetCurrentSelection(i, newValue);
}
}
}
}