KConfigSkeletonItem : allow to set a KconfigGroup to read and write items in nested groups

Summary:
Currently KConfgiSkeleton cannot manage item entry in subgroup, like

```
[General][Colors]
MyItem=foo
```

Example of use

```
// Generated Class with KConfig compiler, inherits KConfigSkeleton

KConfigGroup generalGroup( &config, "General" );
KConfigGroup colorsGroup = config.group( "Colors" )
myItem->setGroup(cg); // Now can take a KConfigGroup
addItem(myItem, "MyItem");

```

Evolution of kconfig compiler will follow to consider this.

Reviewers: ervin, dfaure, #frameworks, mdawson

Reviewed By: ervin, dfaure

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D27059

1 files changed, 1 insertions, 0 deletions

diff --git a/src/core/kcoreconfigskeleton_p.h b/src/core/kcoreconfigskeleton_p.h
index 871122c0..8ba64db7 100644
--- a/src/core/kcoreconfigskeleton_p.h
+++ b/src/core/kcoreconfigskeleton_p.h
@@ -61,6 +61,7 @@ public:
     QString mLabel; ///< The label for this item
     QString mToolTip; ///< The ToolTip text for this item
     QString mWhatsThis; ///< The What's This text for this item
+    KConfigGroup mConfigGroup; ///< KConfigGroup, allow to read/write item in nested groups
 
     // HACK: Necessary to avoid introducing new virtuals in KConfigSkeletonItem
     std::function<bool()> mIsDefaultImpl;