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using System;
using System.Windows;
using System.Windows.Controls;
namespace VersOne.Epub.WpfDemo.Controls
{
/// <summary>
/// A text block control that shows a tooltip with the content of its <see cref="TextBlock.Text" /> property if it is trimmed on the screen.
/// </summary>
public class TextBlockWithTooltip : TextBlock
{
/// <summary>
/// Initializes a new instance of the <see cref="TextBlockWithTooltip" /> class.
/// </summary>
public TextBlockWithTooltip()
{
SizeChanged += TextBlockWithTooltip_SizeChanged;
}
private void TextBlockWithTooltip_SizeChanged(object sender, SizeChangedEventArgs e)
{
Measure(new Size(Double.PositiveInfinity, Double.PositiveInfinity));
if (ActualWidth < DesiredSize.Width)
{
ToolTipService.SetToolTip(this, Text);
}
else
{
ToolTipService.SetToolTip(this, null);
}
}
}
}
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