protected TabControl()
{
Dropdown = CreateDropdown();
if (Dropdown != null)
{
Dropdown.RelativeSizeAxes = Axes.X;
Dropdown.Anchor = Anchor.TopRight;
Dropdown.Origin = Anchor.TopRight;
Dropdown.Current.BindTo(Current);
Add(Dropdown);
Trace.Assert((Dropdown.Header.Anchor & Anchor.x2) > 0, $@"The {nameof(Dropdown)} implementation should use a right-based anchor inside a TabControl.");
Trace.Assert((Dropdown.Header.RelativeSizeAxes & Axes.X) == 0, $@"The {nameof(Dropdown)} implementation's header should have a specific size.");
// create tab items for already existing items in dropdown (if any).
tabMap = Dropdown.Items.ToDictionary(item => item.Value, item => addTab(item.Value, false));
}
else
{
tabMap = new Dictionary <T, TabItem <T> >();
}
Add(TabContainer = new TabFillFlowContainer <TabItem <T> >
{
Direction = FillDirection.Full,
RelativeSizeAxes = Axes.Both,
Depth = -1,
Masking = true,
TabVisibilityChanged = updateDropdown,
ChildrenEnumerable = tabMap.Values
});
Current.ValueChanged += newSelection =>
{
if (IsLoaded)
{
SelectTab(tabMap[Current]);
}
else
{
//will be handled in LoadComplete
SelectedTab = tabMap[Current];
}
};
}
protected TabControl()
{
Dropdown = CreateDropdown();
if (Dropdown != null)
{
Dropdown.RelativeSizeAxes = Axes.X;
Dropdown.Anchor = Anchor.TopRight;
Dropdown.Origin = Anchor.TopRight;
Dropdown.Current.BindTo(Current);
AddInternal(Dropdown);
Trace.Assert(Dropdown.Header.Anchor.HasFlag(Anchor.x2), $@"The {nameof(Dropdown)} implementation should use a right-based anchor inside a TabControl.");
Trace.Assert(!Dropdown.Header.RelativeSizeAxes.HasFlag(Axes.X), $@"The {nameof(Dropdown)} implementation's header should have a specific size.");
// create tab items for already existing items in dropdown (if any).
tabMap = Dropdown.Items.ToDictionary(item => item, item => addTab(item, false));
}
else
{
tabMap = new Dictionary <T, TabItem <T> >();
}
AddInternal(TabContainer = CreateTabFlow());
TabContainer.TabVisibilityChanged = updateDropdown;
TabContainer.ChildrenEnumerable = tabMap.Values;
Current.ValueChanged += newSelection =>
{
if (IsLoaded)
{
SelectTab(tabMap[Current]);
}
else
{
//will be handled in LoadComplete
SelectedTab = tabMap[Current];
}
};
}