/*
* Hyperlink setup for Isabelle proof documents
*
* @author Fabian Immler, TU Munich
*/
package isabelle.jedit
import java.io.File
import gatchan.jedit.hyperlinks.Hyperlink
import gatchan.jedit.hyperlinks.HyperlinkSource
import gatchan.jedit.hyperlinks.AbstractHyperlink
import org.gjt.sp.jedit.View
import org.gjt.sp.jedit.jEdit
import org.gjt.sp.jedit.Buffer
import org.gjt.sp.jedit.TextUtilities
import isabelle.proofdocument.Command
private class Internal_Hyperlink(start: Int, end: Int, line: Int, ref_offset: Int)
extends AbstractHyperlink(start, end, line, "")
{
override def click(view: View) {
view.getTextArea.moveCaretPosition(ref_offset)
}
}
class External_Hyperlink(start: Int, end: Int, line: Int, ref_file: String, ref_line: Int)
extends AbstractHyperlink(start, end, line, "")
{
override def click(view: View) = {
Isabelle.system.source_file(ref_file) match {
case None => System.err.println("Could not find source file " + ref_file) // FIXME ??
case Some(file) =>
jEdit.openFiles(view, file.getParent, Array(file.getName, "+line:" + ref_line))
}
}
}
class Isabelle_Hyperlinks extends HyperlinkSource
{
def getHyperlink(buffer: Buffer, original_offset: Int): Hyperlink =
{
val prover = Isabelle.prover_setup(buffer).map(_.prover)
val theory_view_opt = Isabelle.prover_setup(buffer).map(_.theory_view)
if (prover.isEmpty || theory_view_opt.isEmpty) null
else if (prover.get == null || theory_view_opt.get == null) null
else {
val theory_view = theory_view_opt.get
val document = theory_view.current_document()
val offset = theory_view.from_current(document, original_offset)
document.command_at(offset) match {
case Some(command) =>
command.ref_at(document, offset - command.start(document)) match {
case Some(ref) =>
val command_start = command.start(document)
val begin = theory_view.to_current(document, command_start + ref.start)
val line = buffer.getLineOfOffset(begin)
val end = theory_view.to_current(document, command_start + ref.stop)
ref.info match {
case Command.RefInfo(Some(ref_file), Some(ref_line), _, _) =>
new External_Hyperlink(begin, end, line, ref_file, ref_line)
case Command.RefInfo(_, _, Some(id), Some(offset)) =>
prover.get.command(id) match {
case Some(ref_cmd) =>
new Internal_Hyperlink(begin, end, line,
theory_view.to_current(document, ref_cmd.start(document) + offset - 1))
case None => null
}
case _ => null
}
case None => null
}
case None => null
}
}
}
}