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livetrax/libs/pbd/shortpath.cc
Paul Davis 8aab3489da added moved code for shortpath
git-svn-id: svn://localhost/ardour2/trunk@1671 d708f5d6-7413-0410-9779-e7cbd77b26cf
2007-04-06 02:33:51 +00:00

57 lines
1.3 KiB
C++

#include <pbd/shortpath.h>
using namespace Glib;
using namespace std;
ustring
short_path (const Glib::ustring& path, ustring::size_type target_characters)
{
ustring::size_type last_sep;
ustring::size_type len = path.length();
const char separator = '/';
if (len <= target_characters) {
return path;
}
if ((last_sep = path.find_last_of (separator)) == ustring::npos) {
/* just a filename, but its too long anyway */
if (target_characters > 3) {
return path.substr (0, target_characters - 3) + ustring ("...");
} else {
/* stupid caller, just hand back the whole thing */
return path;
}
}
if (len - last_sep >= target_characters) {
/* even the filename itself is too long */
if (target_characters > 3) {
return path.substr (last_sep+1, target_characters - 3) + ustring ("...");
} else {
/* stupid caller, just hand back the whole thing */
return path;
}
}
uint32_t so_far = (len - last_sep);
uint32_t space_for = target_characters - so_far;
if (space_for >= 3) {
ustring res = "...";
res += path.substr (last_sep - space_for);
return res;
} else {
/* remove part of the end */
ustring res = "...";
res += path.substr (last_sep - space_for, len - last_sep + space_for - 3);
res += "...";
return res;
}
}