Add backend node for QJoint

Change-Id: Ie06f41aefebf9c5c5d8dd8bcd68f9f352799ad18
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

3 files changed, 254 insertions, 1 deletions

diff --git a/tests/auto/render/joint/joint.pro b/tests/auto/render/joint/joint.pro
new file mode 100644
index 000000000..9428ab5fd
--- /dev/null
+++ b/tests/auto/render/joint/joint.pro
@@ -0,0 +1,13 @@
+TEMPLATE = app
+
+TARGET = tst_joint
+
+QT += core-private 3dcore 3dcore-private 3drender 3drender-private testlib
+
+CONFIG += testcase
+
+SOURCES += \
+    tst_joint.cpp
+
+include(../../core/common/common.pri)
+include(../commons/commons.pri)
diff --git a/tests/auto/render/joint/tst_joint.cpp b/tests/auto/render/joint/tst_joint.cpp
new file mode 100644
index 000000000..c7fc2409d
--- /dev/null
+++ b/tests/auto/render/joint/tst_joint.cpp
@@ -0,0 +1,239 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QTest>
+#include <Qt3DRender/private/joint_p.h>
+#include <Qt3DRender/private/nodemanagers_p.h>
+#include <Qt3DCore/qjoint.h>
+#include <Qt3DCore/private/qnode_p.h>
+#include <Qt3DCore/private/qscene_p.h>
+#include <Qt3DCore/qpropertyupdatedchange.h>
+#include <Qt3DCore/private/qpropertyupdatedchangebase_p.h>
+#include <Qt3DCore/qpropertynodeaddedchange.h>
+#include <Qt3DCore/qpropertynoderemovedchange.h>
+#include <QtGui/qmatrix4x4.h>
+#include <QtGui/qvector3d.h>
+#include <qbackendnodetester.h>
+#include <testpostmanarbiter.h>
+#include <testrenderer.h>
+
+using namespace Qt3DCore;
+using namespace Qt3DRender;
+using namespace Qt3DRender::Render;
+
+class tst_Joint : public Qt3DCore::QBackendNodeTester
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+    void checkPeerPropertyMirroring()
+    {
+        // GIVEN
+        TestRenderer renderer;
+        NodeManagers nodeManagers;
+        renderer.setNodeManagers(&nodeManagers);
+        Joint backendJoint;
+        backendJoint.setRenderer(&renderer);
+        backendJoint.setJointManager(nodeManagers.jointManager());
+        QJoint joint;
+
+        joint.setTranslation(QVector3D(1.0f, 2.0f, 3.0f));
+        joint.setScale(QVector3D(1.5f, 2.5f, 3.5));
+        joint.setRotation(QQuaternion::fromAxisAndAngle(1.0f, 0.0f, 0.0f, 45.0f));
+        QMatrix4x4 inverseBind;
+        inverseBind.rotate(-45.0f, 1.0f, 0.0, 0.0f);
+        joint.setInverseBindMatrix(inverseBind);
+
+        QVector<QJoint *> childJoints;
+        for (int i = 0; i < 10; ++i) {
+            const auto childJoint = new QJoint();
+            joint.addChildJoint(childJoint);
+            childJoints.push_back(childJoint);
+        }
+
+        // WHEN
+        simulateInitialization(&joint, &backendJoint);
+
+        // THEN
+        QCOMPARE(backendJoint.peerId(), joint.id());
+        QCOMPARE(backendJoint.isEnabled(), joint.isEnabled());
+        QCOMPARE(backendJoint.translation(), joint.translation());
+        QCOMPARE(backendJoint.rotation(), joint.rotation());
+        QCOMPARE(backendJoint.scale(), joint.scale());
+        QCOMPARE(backendJoint.inverseBindMatrix(), joint.inverseBindMatrix());
+        for (int i = 0; i < childJoints.size(); ++i) {
+            QCOMPARE(backendJoint.childJointIds()[i], childJoints[i]->id());
+        }
+    }
+
+    void checkInitialAndCleanedUpState()
+    {
+        // GIVEN
+        TestRenderer renderer;
+        NodeManagers nodeManagers;
+        renderer.setNodeManagers(&nodeManagers);
+        Joint backendJoint;
+        backendJoint.setRenderer(&renderer);
+        backendJoint.setJointManager(nodeManagers.jointManager());
+
+        // THEN
+        QVERIFY(backendJoint.peerId().isNull());
+        QCOMPARE(backendJoint.isEnabled(), false);
+        QCOMPARE(backendJoint.translation(), QVector3D());
+        QCOMPARE(backendJoint.rotation(), QQuaternion());
+        QCOMPARE(backendJoint.scale(), QVector3D(1.0f, 1.0f, 1.0f));
+        QCOMPARE(backendJoint.inverseBindMatrix(), QMatrix4x4());
+        QCOMPARE(backendJoint.childJointIds(), QNodeIdVector());
+
+        // GIVEN
+        QJoint joint;
+        joint.setTranslation(QVector3D(1.0f, 2.0f, 3.0f));
+        joint.setScale(QVector3D(1.5f, 2.5f, 3.5));
+        joint.setRotation(QQuaternion::fromAxisAndAngle(1.0f, 0.0f, 0.0f, 45.0f));
+        QMatrix4x4 inverseBind;
+        inverseBind.rotate(-45.0f, 1.0f, 0.0, 0.0f);
+        joint.setInverseBindMatrix(inverseBind);
+
+        QVector<QJoint *> childJoints;
+        for (int i = 0; i < 10; ++i) {
+            const auto childJoint = new QJoint();
+            joint.addChildJoint(childJoint);
+            childJoints.push_back(childJoint);
+        }
+
+        // WHEN
+        simulateInitialization(&joint, &backendJoint);
+        backendJoint.cleanup();
+
+        // THEN
+        QCOMPARE(backendJoint.isEnabled(), false);
+        QCOMPARE(backendJoint.translation(), QVector3D());
+        QCOMPARE(backendJoint.rotation(), QQuaternion());
+        QCOMPARE(backendJoint.scale(), QVector3D(1.0f, 1.0f, 1.0f));
+        QCOMPARE(backendJoint.inverseBindMatrix(), QMatrix4x4());
+        QCOMPARE(backendJoint.childJointIds(), QNodeIdVector());
+    }
+
+    void checkPropertyChanges()
+    {
+        // GIVEN
+        TestRenderer renderer;
+        NodeManagers nodeManagers;
+        renderer.setNodeManagers(&nodeManagers);
+        Joint backendJoint;
+        backendJoint.setRenderer(&renderer);
+        backendJoint.setJointManager(nodeManagers.jointManager());
+        Qt3DCore::QPropertyUpdatedChangePtr updateChange;
+
+        // WHEN
+        updateChange.reset(new Qt3DCore::QPropertyUpdatedChange(Qt3DCore::QNodeId()));
+        updateChange->setPropertyName("enabled");
+        updateChange->setValue(true);
+        backendJoint.sceneChangeEvent(updateChange);
+
+        // THEN
+        QCOMPARE(backendJoint.isEnabled(), true);
+
+        // WHEN
+        const QVector3D newTranslation = QVector3D(1.0f, 2.0f, 3.0f);
+        updateChange.reset(new Qt3DCore::QPropertyUpdatedChange(Qt3DCore::QNodeId()));
+        updateChange->setPropertyName("translation");
+        updateChange->setValue(newTranslation);
+        backendJoint.sceneChangeEvent(updateChange);
+
+        // THEN
+        QCOMPARE(backendJoint.translation(), newTranslation);
+
+        // WHEN
+        const QQuaternion newRotation = QQuaternion::fromAxisAndAngle(1.0f, 0.0f, 0.0f, 45.0f);
+        updateChange.reset(new Qt3DCore::QPropertyUpdatedChange(Qt3DCore::QNodeId()));
+        updateChange->setPropertyName("rotation");
+        updateChange->setValue(newRotation);
+        backendJoint.sceneChangeEvent(updateChange);
+
+        // THEN
+        QCOMPARE(backendJoint.rotation(), newRotation);
+
+        // WHEN
+        const QVector3D newScale = QVector3D(1.5f, 2.5f, 3.5f);
+        updateChange.reset(new Qt3DCore::QPropertyUpdatedChange(Qt3DCore::QNodeId()));
+        updateChange->setPropertyName("scale");
+        updateChange->setValue(newScale);
+        backendJoint.sceneChangeEvent(updateChange);
+
+        // THEN
+        QCOMPARE(backendJoint.scale(), newScale);
+
+        // WHEN
+        QMatrix4x4 newInverseBind;
+        newInverseBind.scale(5.4f);
+        updateChange.reset(new Qt3DCore::QPropertyUpdatedChange(Qt3DCore::QNodeId()));
+        updateChange->setPropertyName("inverseBindMatrix");
+        updateChange->setValue(newInverseBind);
+        backendJoint.sceneChangeEvent(updateChange);
+
+        // THEN
+        QCOMPARE(backendJoint.inverseBindMatrix(), newInverseBind);
+
+        // WHEN
+        QVector<QJoint *> childJoints;
+        QPropertyNodeAddedChangePtr nodeAddedChange;
+        for (int i = 0; i < 10; ++i) {
+            const auto childJoint = new QJoint();
+            childJoints.push_back(childJoint);
+
+            nodeAddedChange.reset(new QPropertyNodeAddedChange(QNodeId(), childJoint));
+            nodeAddedChange->setPropertyName("childJoint");
+            backendJoint.sceneChangeEvent(nodeAddedChange);
+        }
+
+        // THEN
+        for (int i = 0; i < childJoints.size(); ++i) {
+            QCOMPARE(backendJoint.childJointIds()[i], childJoints[i]->id());
+        }
+
+        QPropertyNodeRemovedChangePtr nodeRemovedChange;
+        for (int i = 0; i < 10; ++i) {
+            // WHEN
+            const auto childJoint = childJoints.takeLast();
+
+            nodeRemovedChange.reset(new QPropertyNodeRemovedChange(QNodeId(), childJoint));
+            nodeRemovedChange->setPropertyName("childJoint");
+            backendJoint.sceneChangeEvent(nodeAddedChange);
+
+            // THEN
+            for (int i = 0; i < childJoints.size(); ++i) {
+                QCOMPARE(backendJoint.childJointIds()[i], childJoints[i]->id());
+            }
+        }
+    }
+};
+
+QTEST_APPLESS_MAIN(tst_Joint)
+
+#include "tst_joint.moc"
diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 8fd6f17df..ddfaaa10a 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -102,7 +102,8 @@ qtConfig(private_tests) {
         framegraphvisitor \
         renderer \
         armature \
-        skeleton
+        skeleton \
+        joint
 
     QT_FOR_CONFIG = 3dcore-private
     qtConfig(qt3d-extras) {