uic: Use the Qt configure system when generating code

Replace the generation of #ifdef's for the macros by QT_CONFIG
checks. Implement it using streamable classes to make it easier
to switch the output language later.

Task-number: PYSIDE-797
Change-Id: I28b5ed3ec80cd525a3df0cd54d9be4f09149cde4
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/tools/uic/shared/language.cpp b/src/tools/uic/shared/language.cpp
new file mode 100644
index 0000000000..2ab89c2d7b
--- /dev/null
+++ b/src/tools/uic/shared/language.cpp
@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications 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 "language.h"
+
+#include <QtCore/qtextstream.h>
+
+namespace language {
+
+QTextStream &operator<<(QTextStream &str, const qtConfig &c)
+{
+    str << "QT_CONFIG(" << c.parameter() << ')';
+    return str;
+}
+
+QTextStream &operator<<(QTextStream &str, const openQtConfig &c)
+{
+    str << "#if " << qtConfig(c.parameter())  << '\n';
+    return str;
+}
+
+QTextStream &operator<<(QTextStream &str, const closeQtConfig &c)
+{
+    str << "#endif // " << qtConfig(c.parameter()) << '\n';
+    return str;
+}
+
+} // namespace language