Add a simple manual test for loading Active X controls.

Add a simple Ax Viewer console application that can be passed
a CLSID on the command line with options to dump the widget/
window hierarchies using diaglib.
Debugging it is easier than debugging testcon, which is also a server
that cannot be built as console application.

Task-number: QTBUG-50206
Change-Id: I0c267fad3421ed05764ce36fb2cc0b1bcca22b75
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

tests/manual/axviewer/axviewer.pro

@@ -0,0 +1,6 @@
+TEMPLATE = app
+QT = core gui widgets axcontainer
+CONFIG += console c++11
+SOURCES += main.cpp
+DIAGLIB = ../../../../qtbase/tests/manual/diaglib
+exists($$DIAGLIB):include($$DIAGLIB/diaglib.pri)

tests/manual/axviewer/main.cpp

@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 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 <ActiveQt/QAxSelect>
+#include <ActiveQt/QAxWidget>
+
+#include <QtWidgets/QAction>
+#include <QtWidgets/QApplication>
+#include <QtWidgets/QMainWindow>
+#include <QtWidgets/QMenu>
+#include <QtWidgets/QMenuBar>
+#include <QtWidgets/QStatusBar>
+#include <QtWidgets/QToolBar>
+
+#include <QtCore/QCommandLineOption>
+#include <QtCore/QCommandLineParser>
+#include <QtCore/QDebug>
+#include <QtCore/QStringList>
+#include <QtCore/QSysInfo>
+
+#ifdef QT_DIAG_LIB
+#  include <qwidgetdump.h>
+#  include <nativewindowdump.h>
+#  include <qwindowdump.h>
+#endif
+
+#include <algorithm>
+#include <iterator>
+
+QT_USE_NAMESPACE
+
+static inline bool isOptionSet(int argc, char *argv[], const char *option)
+{
+    return (argv + argc) !=
+        std::find_if(argv + 1, argv + argc,
+                     [option] (const char *arg) { return !qstrcmp(arg, option); });
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+public:
+    MainWindow();
+    bool setControl(const QString &clsid);
+
+private:
+    QAxWidget *m_axWidget;
+};
+
+MainWindow::MainWindow()
+    : m_axWidget(new QAxWidget)
+{
+    const QString title = QGuiApplication::applicationDisplayName() + QLatin1String(" Qt ")
+        + QLatin1String(QT_VERSION_STR) + QLatin1String(", ")
+        + QString::number(QSysInfo::WordSize) + QLatin1String("bit");
+    setWindowTitle(title);
+
+    setObjectName(QLatin1String("MainWindow"));
+    m_axWidget->setObjectName(QLatin1String("AxWidget"));
+
+    setCentralWidget(m_axWidget);
+
+    QMenu *fileMenu = menuBar()->addMenu(QLatin1String("File"));
+    fileMenu->setObjectName(QLatin1String("FileMenu"));
+    QToolBar *toolbar = new QToolBar;
+    toolbar->setObjectName(QLatin1String("ToolBar"));
+    addToolBar(Qt::TopToolBarArea, toolbar);
+
+    QAction *action;
+#ifdef QT_DIAG_LIB
+    action = fileMenu->addAction("Dump Widgets",
+                                 this, [] () { QtDiag::dumpAllWidgets(); });
+    toolbar->addAction(action);
+    action = fileMenu->addAction("Dump Windows",
+                                 this, [] () { QtDiag::dumpAllWindows(); });
+    toolbar->addAction(action);
+    action = fileMenu->addAction("Dump Native Windows",
+                                 this, [this] () { QtDiag::dumpNativeWindows(winId()); });
+    toolbar->addAction(action);
+    fileMenu->addSeparator();
+#endif // QT_DIAG_LIB
+    action = fileMenu->addAction("Quit", qApp, &QCoreApplication::quit);
+    toolbar->addAction(action);
+    action->setShortcut(Qt::CTRL + Qt::Key_Q);
+}
+
+bool MainWindow::setControl(const QString &clsid)
+{
+    const bool result = m_axWidget->setControl(clsid);
+    if (result)
+        statusBar()->showMessage(QLatin1String("Loaded ") + clsid);
+    return result;
+}
+
+int main(int argc, char* argv[])
+{
+    if (isOptionSet(argc, argv, "-s"))
+        QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
+    if (!isOptionSet(argc, argv, "-n"))
+        QCoreApplication::setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
+
+    QApplication app(argc, argv);
+    QCoreApplication::setApplicationVersion(QLatin1String(QT_VERSION_STR));
+    QGuiApplication::setApplicationName("Ax Viewer");
+
+    QCommandLineParser parser;
+    parser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
+    parser.addHelpOption();
+    parser.addVersionOption();
+    QCommandLineOption noScalingDummy(QStringLiteral("s"),
+                                      QStringLiteral("Set Qt::AA_DisableHighDpiScaling."));
+    parser.addOption(noScalingDummy);
+    QCommandLineOption nativeSiblingsDummy(QStringLiteral("n"),
+                                           QStringLiteral("Do not set Qt::AA_DontCreateNativeWidgetSiblings."));
+    parser.addOption(nativeSiblingsDummy);
+    parser.addPositionalArgument(QStringLiteral("[clsid]"), QStringLiteral("Class ID"));
+
+    parser.process(QCoreApplication::arguments());
+
+    QString clsid = parser.positionalArguments().value(0, QString());
+    if (clsid.isEmpty()) {
+        QAxSelect select;
+        if (select.exec() != QDialog::Accepted)
+            return 0;
+        clsid = select.clsid();
+    }
+
+    MainWindow mainWindow;
+
+    qDebug() << QT_VERSION_STR << "Loading" << clsid;
+
+    if (!mainWindow.setControl(clsid)) {
+        qWarning().noquote().nospace() << "Failed to set \"" << clsid << '"';
+        return -1;
+    }
+
+    mainWindow.show();
+    return app.exec();
+}
+
+#include "main.moc"