From ed52fc2295170ba41fc5926c78b61c4765cc0c56 Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Sat, 12 Dec 2015 04:44:41 +0000
Subject: [PATCH] refs #544 fixed \copydoc references to Qt docs

---
 docs/Doxyfile.qmake | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/docs/Doxyfile.qmake b/docs/Doxyfile.qmake
index ac426805d..4f2af8f6b 100644
--- a/docs/Doxyfile.qmake
+++ b/docs/Doxyfile.qmake
@@ -2018,13 +2018,22 @@ SKIP_FUNCTION_MACROS   = YES
 # the path). If a tag file is not located in the directory in which doxygen is
 # run, you must also specify the path to the tagfile here.
 
-TAGFILES               =
+# http://stackoverflow.com/questions/22244779/doxygen-generated-documentation-with-auto-generated-links-to-qt-project
+# https://blog.qt.io/blog/2014/08/13/qt-weekly-17-linking-qt-classes-in-documentation-generated-with-doxygen/
+
+TAGFILES = qtcore.tags=http://doc.qt.io/qt-5/ qtgui.tags=http://doc.qt.io/qt-5/ \
+           qtwidgets.tags=http://doc.qt.io/qt-5/ qtxml.tags=http://doc.qt.io/qt-5/ \
+           qtnetwork.tags=http://doc.qt.io/qt-5/
+
+# TAGFILES = qtcore.tags=qthelp://org.qt-project.qtcore/qtcore/ \
+#            qtgui.tags=qthelp://org.qt-project.qtgui/qtgui/ \
+#            qtxml.tags=qthelp://org.qt-project.qtxml/qtxml/
 
 # When a file name is specified after GENERATE_TAGFILE, doxygen will create a
 # tag file that is based on the input files it reads. See section "Linking to
 # external documentation" for more information about the usage of tag files.
 
-GENERATE_TAGFILE       =
+GENERATE_TAGFILE       = swifttags
 
 # If the ALLEXTERNALS tag is set to YES all external class will be listed in the
 # class index. If set to NO only the inherited external classes will be listed.