+ std::list<DisplayPath> paths;
+ typedef std::list<DisplayPath>::iterator It;
+
+ // collect full names first: path into postfix, empty prefix and
+ // filename without extension
+ for (size_t i = 0; i < n; ++i) {
+ GuiWorkArea * i_wa = dynamic_cast<GuiWorkArea *>(widget(i));
+ FileName const fn = i_wa->bufferView().buffer().fileName();
+ paths.push_back(DisplayPath(i, fn));
+ }
+
+ // go through path segments and see if it helps to make the path more unique
+ bool somethingChanged = true;
+ bool allFinal = false;
+ while (somethingChanged && !allFinal) {
+ // adding path segments changes order
+ paths.sort();
+
+ LYXERR(Debug::GUI, "updateTabTexts() iteration start");
+ somethingChanged = false;
+ allFinal = true;
+
+ // find segments which are not unique (i.e. non-atomic)
+ It it = paths.begin();
+ It segStart = it;
+ QString segString = it->displayString();
+ for (; it != paths.end(); ++it) {
+ // look to the next item
+ It next = it;
+ ++next;
+
+ // final?
+ allFinal = allFinal && it->final();
+
+ LYXERR(Debug::GUI, "it = " << it->abs()
+ << " => " << it->displayString());
+
+ // still the same segment?
+ QString nextString;
+ if ((next != paths.end()
+ && (nextString = next->displayString()) == segString))
+ continue;
+ LYXERR(Debug::GUI, "segment ended");
+
+ // only a trivial one with one element?
+ if (it == segStart) {
+ // start new segment
+ segStart = next;
+ segString = nextString;
+ continue;
+ }
+
+ // we found a non-atomic segment segStart <= sit <= it < next.
+ // Shift path segments and hope for the best
+ // that it makes the path more unique.
+ somethingChanged = true;
+ It sit = segStart;
+ QString dspString = sit->forecastPathString();
+ LYXERR(Debug::GUI, "first forecast found for "
+ << sit->abs() << " => " << dspString);
+ ++sit;
+ bool moreUnique = false;
+ for (; sit != next; ++sit) {
+ if (sit->forecastPathString() != dspString) {
+ LYXERR(Debug::GUI, "different forecast found for "
+ << sit->abs() << " => " << sit->forecastPathString());
+ moreUnique = true;
+ break;
+ }
+ LYXERR(Debug::GUI, "same forecast found for "
+ << sit->abs() << " => " << dspString);
+ }
+
+ // if the path segment helped, add it. Otherwise add dots
+ bool dots = !moreUnique;
+ LYXERR(Debug::GUI, "using dots = " << dots);
+ for (sit = segStart; sit != next; ++sit) {
+ sit->shiftPathSegment(dots);
+ LYXERR(Debug::GUI, "shifting "
+ << sit->abs() << " => " << sit->displayString());
+ }
+
+ // start new segment
+ segStart = next;
+ segString = nextString;
+ }
+ }
+
+ // set new tab titles
+ for (It it = paths.begin(); it != paths.end(); ++it) {
+ GuiWorkArea * i_wa = dynamic_cast<GuiWorkArea *>(widget(it->tab()));
+ Buffer & buf = i_wa->bufferView().buffer();
+ if (!buf.fileName().empty() && !buf.isClean())
+ setTabText(it->tab(), it->displayString() + "*");
+ else
+ setTabText(it->tab(), it->displayString());
+ }