Add stylesheet merger

Adds classes to merge a template qml file and a qml stylesheet that have
been exported from other design tools into a resulting qml file that can
be used for further processing in Qt Design Studio.

Current issues:

* Sometimes it makes sense to define width and height
  if an anchor is present, but most of the time not.

* Actually if the hierachy was defined (e.g. Text item not child of
  background) most likely the anchors should be ignored.
  But this would be just a "dirty" heuristic. I suggest to let the
  template decide. If the template has anchors those have "precedence".
  It is always possible to define templates without anchors.

Task-number: QDS-2071
Change-Id: I9159514a8e884b7ffc31897aef4551b5efbbcb87
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/plugins/qmldesigner/CMakeLists.txt b/src/plugins/qmldesigner/CMakeLists.txt
index 53a3e4de84..f9a6dc94cb 100644
--- a/src/plugins/qmldesigner/CMakeLists.txt
+++ b/src/plugins/qmldesigner/CMakeLists.txt
@@ -457,6 +457,7 @@ extend_qtc_plugin(QmlDesigner
     include/rewriterview.h
     include/rewritingexception.h
     include/signalhandlerproperty.h
+    include/stylesheetmerger.h
     include/subcomponentmanager.h
     include/textmodifier.h
     include/variantproperty.h
@@ -530,6 +531,7 @@ extend_qtc_plugin(QmlDesigner
     model/rewriteactioncompressor.cpp model/rewriteactioncompressor.h
     model/rewriterview.cpp
     model/signalhandlerproperty.cpp
+    model/stylesheetmerger.cpp
     model/textmodifier.cpp
     model/texttomodelmerger.cpp model/texttomodelmerger.h
     model/variantproperty.cpp