From 49989d46dc2cba875f26d79db4607c78bee9fd5a Mon Sep 17 00:00:00 2001
From: Tobias Hunger <tobias.hunger@qt.io>
Date: Fri, 10 Mar 2017 15:07:29 +0100
Subject: [PATCH] FolderNode: Add isAncesterOf(Node *)

Change-Id: I716593e7fd25f4acc31933e2f28273ced4674b73
Reviewed-by: hjk <hjk@qt.io>
---
 src/plugins/projectexplorer/projectnodes.cpp | 10 ++++++++++
 src/plugins/projectexplorer/projectnodes.h   |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/src/plugins/projectexplorer/projectnodes.cpp b/src/plugins/projectexplorer/projectnodes.cpp
index 72dc63a08e9..39305c7e8c7 100644
--- a/src/plugins/projectexplorer/projectnodes.cpp
+++ b/src/plugins/projectexplorer/projectnodes.cpp
@@ -496,6 +496,16 @@ void FolderNode::compress()
     }
 }
 
+bool FolderNode::isAncesterOf(Node *n)
+{
+    if (n == this)
+        return true;
+    FolderNode *p = n->parentFolderNode();
+    while (p && p != this)
+        p = p->parentFolderNode();
+    return p == this;
+}
+
 bool FolderNode::replaceSubtree(Node *oldNode, Node *newNode)
 {
     std::unique_ptr<Node> nn(newNode);
diff --git a/src/plugins/projectexplorer/projectnodes.h b/src/plugins/projectexplorer/projectnodes.h
index 2f9ad0cdefe..6a9f3eb723a 100644
--- a/src/plugins/projectexplorer/projectnodes.h
+++ b/src/plugins/projectexplorer/projectnodes.h
@@ -201,6 +201,8 @@ public:
     void buildTree(QList<FileNode *> &files, const Utils::FileName &overrideBaseDir = Utils::FileName());
     void compress();
 
+    bool isAncesterOf(Node *n);
+
     // takes ownership of newNode.
     // Will delete newNode if oldNode is not a child of this node.
     bool replaceSubtree(Node *oldNode, Node *newNode);