Display the Subsurface manual in the help widget

This adds a helper function to determine the Subsurface data directory
(are we running from build directory? installed on Linux? installed on
Mac? - still need to add support for Windows). This same function is
then used by both the setup for Marble and for the help browser.

This assumes that the user-manual.html file has actually been built and
installed (which we don't do by default with the current Makefile).

Right now there are rendering issues with our manual in the help browser
widget - I'm sure this can be fixed...

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/helpers.h b/helpers.h
index 04fcd8309..57b5aa6f7 100644
--- a/helpers.h
+++ b/helpers.h
@@ -17,5 +17,6 @@ QString get_volume_string(volume_t volume, bool showunit);
 QString get_pressure_string(pressure_t pressure, bool showunit);
 void set_default_dive_computer(const char *vendor, const char *product);
 void set_default_dive_computer_device(const char *name);
+QString getSubsurfaceDataPath(QString folderToFind);
 
 #endif /* HELPER_H */