Add a new mirrored property to QPlane(Mesh|Geometry)

This is regularly necessary to be able to flip vertically the UV
coordinates on the plane mesh depending if we are using a texture in
model space coords or in window coords. Especially necessary now with
Scene2D which outputs textures in window coords. This property is
necessary to make it usable.

Change-Id: I0fe7d3fdc125f1791492cf39ebe908bbc20f1db2
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/extras/geometries/qplanemesh.cpp b/src/extras/geometries/qplanemesh.cpp
index 5991c5397..4804df024 100644
--- a/src/extras/geometries/qplanemesh.cpp
+++ b/src/extras/geometries/qplanemesh.cpp
@@ -73,6 +73,13 @@ namespace  Qt3DExtras {
  */
 
 /*!
+ * \qmlproperty bool PlaneMesh::mirrored
+ * \since 5.9
+ *
+ * Controls if the UV coordinates of the plane should be flipped vertically.
+ */
+
+/*!
  * \class Qt3DExtras::QPlaneMesh
  * \inheaderfile Qt3DExtras/QPlaneMesh
  * \inmodule Qt3DExtras
@@ -92,6 +99,7 @@ QPlaneMesh::QPlaneMesh(QNode *parent)
     QObject::connect(geometry, &QPlaneGeometry::widthChanged, this, &QPlaneMesh::widthChanged);
     QObject::connect(geometry, &QPlaneGeometry::heightChanged, this, &QPlaneMesh::heightChanged);
     QObject::connect(geometry, &QPlaneGeometry::resolutionChanged, this, &QPlaneMesh::meshResolutionChanged);
+    QObject::connect(geometry, &QPlaneGeometry::mirroredChanged, this, &QPlaneMesh::mirroredChanged);
     QGeometryRenderer::setGeometry(geometry);
 }
 
@@ -147,6 +155,22 @@ QSize QPlaneMesh::meshResolution() const
     return static_cast<QPlaneGeometry *>(geometry())->resolution();
 }
 
+void QPlaneMesh::setMirrored(bool mirrored)
+{
+    static_cast<QPlaneGeometry *>(geometry())->setMirrored(mirrored);
+}
+
+/*!
+ * \property QPlaneMesh::mirrored
+ * \since 5.9
+ *
+ * Controls if the UV coordinates of the plane should be flipped vertically.
+ */
+bool QPlaneMesh::mirrored() const
+{
+    return static_cast<QPlaneGeometry *>(geometry())->mirrored();
+}
+
 } // namespace  Qt3DExtras
 
 QT_END_NAMESPACE