From f8e2c9516214e155de0e1113b27231713fc25c03 Mon Sep 17 00:00:00 2001
From: Florian Geyer <blueice@fobos.de>
Date: Thu, 19 Apr 2012 00:04:52 +0200
Subject: [PATCH] Add hasChild function to check for a child in a QObject tree.

---
 src/core/Tools.cpp | 13 +++++++++++++
 src/core/Tools.h   |  2 ++
 2 files changed, 15 insertions(+)

diff --git a/src/core/Tools.cpp b/src/core/Tools.cpp
index 9a553d54c..341159546 100644
--- a/src/core/Tools.cpp
+++ b/src/core/Tools.cpp
@@ -38,4 +38,17 @@ QString humanReadableFileSize(qint64 bytes)
     return QString("%1 %2").arg(QLocale().toString(size, 'f', 2), units.at(i));
 }
 
+bool hasChild(const QObject* parent, const QObject* child)
+{
+    if (!parent || !child) {
+        return false;
+    }
+    Q_FOREACH (QObject* c, parent->children()) {
+        if (child == c || hasChild(c, child)) {
+            return true;
+        }
+    }
+    return false;
+}
+
 } // namespace Tools
diff --git a/src/core/Tools.h b/src/core/Tools.h
index 45be9b590..1241a6c39 100644
--- a/src/core/Tools.h
+++ b/src/core/Tools.h
@@ -18,11 +18,13 @@
 #ifndef KEEPASSX_TOOLS_H
 #define KEEPASSX_TOOLS_H
 
+#include <QtCore/QObject>
 #include <QtCore/QString>
 
 namespace Tools {
 
 QString humanReadableFileSize(qint64 bytes);
+bool hasChild(const QObject* parent, const QObject* child);
 
 } // namespace Tools