public void TestClearLinkState()
{
builder.SetLinkState("this is a link");
builder.ClearLinkState();
builder.AppendText("some text", TextStyle.Normal);
Assert.AreEqual(1, doc.LastSection.Elements.Count);
Paragraph paragraph = (Paragraph)doc.LastSection.Elements[0];
// This hyperlink is empty - arguably it shouldn't be inserted at all.
Assert.AreEqual(2, paragraph.Elements.Count);
Assert.True(paragraph.Elements[0] is Hyperlink);
Assert.True(paragraph.Elements[1] is FormattedText);
}
/// <summary>
/// Render the given autolink inline object to the PDF document.
/// </summary>
/// <param name="renderer">The PDF renderer.</param>
/// <param name="obj">The autolink inline object to be renderered.</param>
protected override void Write(PdfBuilder renderer, AutolinkInline obj)
{
string prefix = obj.IsEmail ? "mailto:" : "";
string uri = $"{prefix}{obj.Url}";
renderer.SetLinkState(uri);
renderer.AppendText(uri, TextStyle.Normal);
renderer.ClearLinkState();
}
public void TestLinkStyle()
{
builder.SetLinkState("link uri");
builder.AppendText("link text", TextStyle.Normal);
builder.ClearLinkState();
Paragraph paragraph = (Paragraph)doc.LastSection.Elements[0];
Hyperlink link = (Hyperlink)paragraph.Elements[0];
FormattedText formatted = (FormattedText)link.Elements[0];
Style style = doc.Styles[formatted.Style];
// Links should not have the "Normal" font colour - they should be blue.
// I'm not going to test the exact shade. As long as it's not the
// default font colour then we're good.
Assert.AreNotEqual(doc.Styles.Normal.Font.Color, style.Font.Color);
}
/// <summary>
/// Render the given LinkInline object to the PDF document.
/// </summary>
/// <param name="renderer">The PDF renderer.</param>
/// <param name="link">The link object to be renderered.</param>
protected override void Write(PdfBuilder renderer, LinkInline link)
{
string uri = link.GetDynamicUrl != null?link.GetDynamicUrl() ?? link.Url : link.Url;
if (link.IsImage)
{
Image image = GetImage(uri);
// Technically, the image should be written to the same paragraph as any existing content.
// However, if the image is too large, I'm going to add it to its own paragraph.
// I'm defining "too large" as "taller than page height * 0.9".
renderer.GetPageSize(out _, out double height);
if (image.Height > 0.9 * height)
{
renderer.StartNewParagraph();
}
renderer.AppendImage(image);
// The assumption here is that any children of the image are the image's caption.
renderer.StartNewParagraph();
// Increment heading count, iff the link has a caption.
if (link.Any())
{
renderer.IncrementFigureNumber();
renderer.AppendText($"Figure {renderer.FigureNumber}: ", TextStyle.Strong);
renderer.WriteChildren(link);
renderer.StartNewParagraph();
}
}
else
{
// Clunky bookmark detection. This could be improved.
if (uri.StartsWith("#"))
{
renderer.StartBookmark(uri);
}
else
{
renderer.SetLinkState(uri);
}
renderer.WriteChildren(link);
renderer.ClearLinkState();
}
}