private static void UpdateMargin(TextBlock textBlock, TextLineModes mode, Thickness margin)
{
if (textBlock.ActualHeight == 0)
{
textBlock.TextLineBounds = TextLineBounds.Tight;
// Unfortunately, we won't know the TextBlock's height until after load
textBlock.Loaded += textBlock_Loaded;
return;
}
Thickness currentMargin = textBlock.Margin;
if (mode == TextLineModes.Baseline)
{
currentMargin.Bottom = margin.Bottom;
currentMargin.Top = margin.Top - textBlock.ActualHeight;
}
else if (mode == TextLineModes.CapHeight)
{
currentMargin.Top = margin.Top;
currentMargin.Bottom = margin.Bottom - textBlock.ActualHeight;
}
currentMargin.Left = margin.Left;
currentMargin.Right = margin.Right;
textBlock.Margin = currentMargin;
}
public static void SetMode(DependencyObject d, TextLineModes value)
{
d.SetValue(ModeProperty, value);
}
