Added NodeInstantiator

Hopefully in the long term we can make the renderer smart enough
that it can automatically use instancing to render such things.

Change-Id: I9f5cfabeea11f5e6b925d5ad2466afa8e601e6f8
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

3 files changed, 238 insertions, 0 deletions

diff --git a/tests/auto/shared/util.cpp b/tests/auto/shared/util.cpp
new file mode 100644
index 000000000..37468f467
--- /dev/null
+++ b/tests/auto/shared/util.cpp
@@ -0,0 +1,130 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "util.h"
+
+#include <QtQml/QQmlComponent>
+#include <QtQml/QQmlError>
+#include <QtQml/QQmlContext>
+#include <QtQml/QQmlEngine>
+#include <QtCore/QTextStream>
+#include <QtCore/QDebug>
+#include <QtCore/QMutexLocker>
+
+QQmlDataTest *QQmlDataTest::m_instance = 0;
+
+QQmlDataTest::QQmlDataTest() :
+#ifdef QT_TESTCASE_BUILDDIR
+    m_dataDirectory(QTest::qFindTestData("data", QT_QMLTEST_DATADIR, 0, QT_TESTCASE_BUILDDIR)),
+#else
+    m_dataDirectory(QTest::qFindTestData("data", QT_QMLTEST_DATADIR, 0)),
+#endif
+
+    m_dataDirectoryUrl(QUrl::fromLocalFile(m_dataDirectory + QLatin1Char('/')))
+{
+    m_instance = this;
+}
+
+QQmlDataTest::~QQmlDataTest()
+{
+    m_instance = 0;
+}
+
+void QQmlDataTest::initTestCase()
+{
+    QVERIFY2(!m_dataDirectory.isEmpty(), "'data' directory not found");
+    m_directory = QFileInfo(m_dataDirectory).absolutePath();
+    QVERIFY2(QDir::setCurrent(m_directory), qPrintable(QLatin1String("Could not chdir to ") + m_directory));
+}
+
+QString QQmlDataTest::testFile(const QString &fileName) const
+{
+    if (m_directory.isEmpty())
+        qFatal("QQmlDataTest::initTestCase() not called.");
+    QString result = m_dataDirectory;
+    result += QLatin1Char('/');
+    result += fileName;
+    return result;
+}
+
+QByteArray QQmlDataTest::msgComponentError(const QQmlComponent &c,
+                                                   const QQmlEngine *engine /* = 0 */)
+{
+    QString result;
+    const QList<QQmlError> errors = c.errors();
+    QTextStream str(&result);
+    str << "Component '" << c.url().toString() << "' has " << errors.size()
+        << " errors: '";
+    for (int i = 0; i < errors.size(); ++i) {
+        if (i)
+            str << ", '";
+        str << errors.at(i).toString() << '\'';
+
+    }
+    if (!engine)
+        if (QQmlContext *context = c.creationContext())
+            engine = context->engine();
+    if (engine) {
+        str << " Import paths: (" << engine->importPathList().join(QStringLiteral(", "))
+            << ") Plugin paths: (" << engine->pluginPathList().join(QStringLiteral(", "))
+            << ')';
+    }
+    return result.toLocal8Bit();
+}
+
+Q_GLOBAL_STATIC(QMutex, qQmlTestMessageHandlerMutex)
+
+QQmlTestMessageHandler *QQmlTestMessageHandler::m_instance = 0;
+
+void QQmlTestMessageHandler::messageHandler(QtMsgType, const QMessageLogContext &, const QString &message)
+{
+    QMutexLocker locker(qQmlTestMessageHandlerMutex());
+    if (QQmlTestMessageHandler::m_instance)
+        QQmlTestMessageHandler::m_instance->m_messages.push_back(message);
+}
+
+QQmlTestMessageHandler::QQmlTestMessageHandler()
+{
+    QMutexLocker locker(qQmlTestMessageHandlerMutex());
+    Q_ASSERT(!QQmlTestMessageHandler::m_instance);
+    QQmlTestMessageHandler::m_instance = this;
+    m_oldHandler = qInstallMessageHandler(messageHandler);
+}
+
+QQmlTestMessageHandler::~QQmlTestMessageHandler()
+{
+    QMutexLocker locker(qQmlTestMessageHandlerMutex());
+    Q_ASSERT(QQmlTestMessageHandler::m_instance);
+    qInstallMessageHandler(m_oldHandler);
+    QQmlTestMessageHandler::m_instance = 0;
+}
diff --git a/tests/auto/shared/util.h b/tests/auto/shared/util.h
new file mode 100644
index 000000000..12a8933c4
--- /dev/null
+++ b/tests/auto/shared/util.h
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQMLTESTUTILS_H
+#define QQMLTESTUTILS_H
+
+#include <QtCore/QDir>
+#include <QtCore/QUrl>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QStringList>
+#include <QtTest/QTest>
+
+QT_FORWARD_DECLARE_CLASS(QQmlComponent)
+QT_FORWARD_DECLARE_CLASS(QQmlEngine)
+
+/* Base class for tests with data that are located in a "data" subfolder. */
+
+class QQmlDataTest : public QObject
+{
+    Q_OBJECT
+public:
+    QQmlDataTest();
+    virtual ~QQmlDataTest();
+
+    QString testFile(const QString &fileName) const;
+    inline QString testFile(const char *fileName) const
+        { return testFile(QLatin1String(fileName)); }
+    inline QUrl testFileUrl(const QString &fileName) const
+        { return QUrl::fromLocalFile(testFile(fileName)); }
+    inline QUrl testFileUrl(const char *fileName) const
+        { return testFileUrl(QLatin1String(fileName)); }
+
+    inline QString dataDirectory() const { return m_dataDirectory; }
+    inline QUrl dataDirectoryUrl() const { return m_dataDirectoryUrl; }
+    inline QString directory() const  { return m_directory; }
+
+    static inline QQmlDataTest *instance() { return m_instance; }
+
+    static QByteArray msgComponentError(const QQmlComponent &,
+                                        const QQmlEngine *engine = 0);
+
+public slots:
+    virtual void initTestCase();
+
+private:
+    static QQmlDataTest *m_instance;
+
+    const QString m_dataDirectory;
+    const QUrl m_dataDirectoryUrl;
+    QString m_directory;
+};
+
+class QQmlTestMessageHandler
+{
+    Q_DISABLE_COPY(QQmlTestMessageHandler)
+public:
+    QQmlTestMessageHandler();
+    ~QQmlTestMessageHandler();
+
+    const QStringList &messages() const { return m_messages; }
+    const QString messageString() const { return m_messages.join(QLatin1Char('\n')); }
+
+    void clear() { m_messages.clear(); }
+
+private:
+    static void messageHandler(QtMsgType, const QMessageLogContext &, const QString &message);
+
+    static QQmlTestMessageHandler *m_instance;
+    QStringList m_messages;
+    QtMessageHandler m_oldHandler;
+};
+
+#endif // QQMLTESTUTILS_H
diff --git a/tests/auto/shared/util.pri b/tests/auto/shared/util.pri
new file mode 100644
index 000000000..8e82dcb33
--- /dev/null
+++ b/tests/auto/shared/util.pri
@@ -0,0 +1,5 @@
+
+HEADERS += $$PWD/util.h
+SOURCES += $$PWD/util.cpp
+
+DEFINES += QT_QMLTEST_DATADIR=\\\"$${_PRO_FILE_PWD_}/data\\\"