QGeoPath: implement clear function

QGeoPath is missing a function to clear its content. This patch
implements it.

[ChangeLog][Positioning] QGeoPath can now be cleared directly using
clearPath.

Task-number: QTBUG-62875
Change-Id: I215edf180d11002c6f7e57bb10b008e935f32340
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
Reviewed-by: Paolo Angelelli <paolo.angelelli@qt.io>

3 files changed, 21 insertions, 0 deletions

diff --git a/src/positioning/qgeopath.cpp b/src/positioning/qgeopath.cpp
index 94a14ad1..6fc79c07 100644
--- a/src/positioning/qgeopath.cpp
+++ b/src/positioning/qgeopath.cpp
@@ -197,6 +197,18 @@ const QList<QGeoCoordinate> &QGeoPath::path() const
     Q_D(const QGeoPath);
     return d->path();
 }
+
+/*!
+    Clears the path.
+
+    \since 5.12
+*/
+void QGeoPath::clearPath()
+{
+    Q_D(QGeoPath);
+    d->clearPath();
+}
+
 /*!
     Sets all the elements of the path.
 
@@ -450,6 +462,12 @@ void QGeoPathPrivate::setPath(const QList<QGeoCoordinate> &path)
     computeBoundingBox();
 }
 
+void QGeoPathPrivate::clearPath()
+{
+    m_path.clear();
+    computeBoundingBox();
+}
+
 qreal QGeoPathPrivate::width() const
 {
     return m_width;
diff --git a/src/positioning/qgeopath.h b/src/positioning/qgeopath.h
index 178ac3bf..e4af2add 100644
--- a/src/positioning/qgeopath.h
+++ b/src/positioning/qgeopath.h
@@ -72,6 +72,7 @@ public:
 
     void setPath(const QList<QGeoCoordinate> &path);
     const QList<QGeoCoordinate> &path() const;
+    void clearPath();
     void setVariantPath(const QVariantList &path);
     QVariantList variantPath() const;
 
diff --git a/src/positioning/qgeopath_p.h b/src/positioning/qgeopath_p.h
index ecba2dcc..6548ce84 100644
--- a/src/positioning/qgeopath_p.h
+++ b/src/positioning/qgeopath_p.h
@@ -85,6 +85,8 @@ public:
 
     const QList<QGeoCoordinate> &path() const;
     void setPath(const QList<QGeoCoordinate> &path);
+    void clearPath();
+
     qreal width() const;
     void setWidth(const qreal &width);
     double length(int indexFrom, int indexTo) const;