public void FromPage()
{
using (var doc = CGPDFDocument.FromFile(NSBundle.MainBundle.PathForResource("Tamarin", "pdf")))
using (var page = doc.GetPage(1))
using (var cs = new CGPDFContentStream(page)) {
Assert.That(cs.Handle, Is.Not.EqualTo(IntPtr.Zero), "Handle");
var streams = cs.GetStreams();
Assert.That(streams.Length, Is.EqualTo(1), "GetStreams.Length");
Assert.That(streams [0].Handle, Is.Not.EqualTo(cs.Handle), "GetStreams");
Assert.Null(cs.GetResource("XObject", ""), "GetResource");
}
}
public void Tamarin()
{
using (var table = new CGPDFOperatorTable()) {
// note: the native API is horrible as we can't share the same callback and dispatch it to the right
// managed method. That force every operator to have one ugly, MonoPInvokeCallback-decorated, per
// operator
#if WE_HAD_A_NICE_API
table.SetCallback("BT", delegate(CGPDFScanner scanner) {
bt_count++;
});
table.SetCallback("Do", delegate(CGPDFScanner scanner) {
// ... drill down to the image
});
#elif NET
unsafe {
// BT == new paragraph
table.SetCallback("BT", &BT);
// Do == the image is inside it
table.SetCallback("Do", &Do);
}
#else
// BT == new paragraph
table.SetCallback("BT", BT);
// Do == the image is inside it
table.SetCallback("Do", Do);
#endif
using (var doc = CGPDFDocument.FromFile(NSBundle.MainBundle.PathForResource("Tamarin", "pdf")))
using (var page = doc.GetPage(1))
using (var cs = new CGPDFContentStream(page))
using (var scanner = new CGPDFScanner(cs, table, this)) {
Assert.That(scanner.Handle, Is.Not.EqualTo(IntPtr.Zero), "Handle");
Assert.That(scanner.GetContentStream().Handle, Is.EqualTo(cs.Handle), "GetContentStream");
bt_count = 0;
do_checks = 7;
Assert.True(scanner.Scan(), "Scan");
Assert.That(bt_count, Is.EqualTo(45), "new paragraph");
Assert.That(do_checks, Is.EqualTo(0), "found the image");
}
}
}