private double ProvideCompactWidth(TabViewItem tab, object item, double availableWidth)
{
// If we're selected and have a value for that, then just return that.
if (tab.IsSelected && !double.IsNaN(SelectedTabWidth))
{
return(SelectedTabWidth);
}
// Otherwise use min size.
return(tab.MinWidth);
}
private double ProvideEqualWidth(TabViewItem tab, object item, double availableWidth)
{
if (double.IsNaN(SelectedTabWidth))
{
if (Items.Count <= 1)
{
return(availableWidth);
}
return(Math.Max(tab.MinWidth, availableWidth / Items.Count));
}
else if (Items.Count() <= 1)
{
// Default case of a single tab, make it full size.
return(Math.Min(SelectedTabWidth, availableWidth));
}
else
{
var width = (availableWidth - SelectedTabWidth) / (Items.Count - 1);
// Constrain between Min and Selected (Max)
if (width < tab.MinWidth)
{
width = tab.MinWidth;
}
else if (width > SelectedTabWidth)
{
width = SelectedTabWidth;
}
// If it's selected make it full size, otherwise whatever the size should be.
return(tab.IsSelected
? Math.Min(SelectedTabWidth, availableWidth)
: width);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="TabClosingEventArgs"/> class.
/// </summary>
/// <param name="item">Item being closed.</param>
/// <param name="tab"><see cref="TabViewItem"/> container being closed.</param>
public TabClosingEventArgs(object item, TabViewItem tab)
{
Item = item;
Tab = tab;
}
/// <summary>
/// Initializes a new instance of the <see cref="TabDraggedOutsideEventArgs"/> class.
/// </summary>
/// <param name="item">data context of element dragged</param>
/// <param name="tab"><see cref="TabViewItem"/> container being dragged.</param>
public TabDraggedOutsideEventArgs(object item, TabViewItem tab)
{
Item = item;
Tab = tab;
}
private static void SetOriginalWidth(TabViewItem obj, double value)
{
obj.SetValue(OriginalWidthProperty, value);
}
// Attached property for storing widths of tabs if set by other means during layout.
private static double GetOriginalWidth(TabViewItem obj)
{
return((double)obj.GetValue(OriginalWidthProperty));
}