1 files changed, 137 insertions, 0 deletions
diff --git a/src/labs/platform/widgets/qwidgetplatform_p.h b/src/labs/platform/widgets/qwidgetplatform_p.h
new file mode 100644
index 0000000000..12fe565082
--- /dev/null
+++ b/src/labs/platform/widgets/qwidgetplatform_p.h
@@ -0,0 +1,137 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QWIDGETPLATFORM_P_H
+#define QWIDGETPLATFORM_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qdebug.h>
+#include <QtCore/qcoreapplication.h>
+#include <QtGui/qpa/qplatformtheme.h>
+#include <QtGui/qpa/qplatformdialoghelper.h>
+#include <QtGui/qpa/qplatformsystemtrayicon.h>
+#include <QtGui/qpa/qplatformmenu.h>
+
+#ifdef QT_WIDGETS_LIB
+#include <QtWidgets/qtwidgetsglobal.h>
+#if QT_CONFIG(colordialog)
+#include "qwidgetplatformcolordialog_p.h"
+#endif
+#if QT_CONFIG(filedialog)
+#include "qwidgetplatformfiledialog_p.h"
+#endif
+#if QT_CONFIG(fontdialog)
+#include "qwidgetplatformfontdialog_p.h"
+#endif
+#if QT_CONFIG(messagebox)
+#include "qwidgetplatformmessagedialog_p.h"
+#endif
+#if QT_CONFIG(menu)
+#include "qwidgetplatformmenu_p.h"
+#include "qwidgetplatformmenuitem_p.h"
+#endif
+#ifndef QT_NO_SYSTEMTRAYICON
+#include "qwidgetplatformsystemtrayicon_p.h"
+#endif
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_WIDGETS_LIB
+typedef QPlatformMenu QWidgetPlatformMenu;
+typedef QPlatformMenuItem QWidgetPlatformMenuItem;
+typedef QPlatformColorDialogHelper QWidgetPlatformColorDialog;
+typedef QPlatformFileDialogHelper QWidgetPlatformFileDialog;
+typedef QPlatformFontDialogHelper QWidgetPlatformFontDialog;
+typedef QPlatformMessageDialogHelper QWidgetPlatformMessageDialog;
+typedef QPlatformSystemTrayIcon QWidgetPlatformSystemTrayIcon;
+#endif
+
+namespace QWidgetPlatform
+{
+    static inline bool isAvailable(const char *type)
+    {
+        if (!qApp->inherits("QApplication")) {
+            qCritical("\nERROR: No native %s implementation available."
+                      "\nQt Labs Platform requires Qt Widgets on this setup."
+                      "\nAdd 'QT += widgets' to .pro and create QApplication in main().\n", type);
+            return false;
+        }
+        return true;
+    }
+
+    template<typename T>
+    static inline T *createWidget(const char *name, QObject *parent)
+    {
+        static bool available = isAvailable(name);
+#ifdef QT_WIDGETS_LIB
+        if (available)
+            return new T(parent);
+#else
+        Q_UNUSED(parent);
+        Q_UNUSED(available);
+#endif
+        return nullptr;
+    }
+
+    static inline QPlatformMenu *createMenu(QObject *parent = nullptr) {
+#if defined(QT_WIDGETS_LIB) && QT_CONFIG(menu)
+        return createWidget<QWidgetPlatformMenu>("Menu", parent);
+#else
+        Q_UNUSED(parent);
+        return nullptr;
+#endif
+    }
+    static inline QPlatformMenuItem *createMenuItem(QObject *parent = nullptr) {
+#if defined(QT_WIDGETS_LIB) && QT_CONFIG(menu)
+        return createWidget<QWidgetPlatformMenuItem>("MenuItem", parent);
+#else
+        Q_UNUSED(parent);
+        return nullptr;
+#endif
+    }
+    static inline QPlatformSystemTrayIcon *createSystemTrayIcon(QObject *parent = nullptr) {
+#ifndef QT_NO_SYSTEMTRAYICON
+        return createWidget<QWidgetPlatformSystemTrayIcon>("SystemTrayIcon", parent);
+#else
+        Q_UNUSED(parent);
+        return nullptr;
+#endif
+    }
+    static inline QPlatformDialogHelper *createDialog(QPlatformTheme::DialogType type, QObject *parent = nullptr)
+    {
+#if !defined(QT_WIDGETS_LIB) || !(QT_CONFIG(colordialog) || QT_CONFIG(filedialog) || QT_CONFIG(fontdialog) || QT_CONFIG(messagebox))
+        Q_UNUSED(parent);
+#endif
+        switch (type) {
+#if defined(QT_WIDGETS_LIB) && QT_CONFIG(colordialog)
+        case QPlatformTheme::ColorDialog: return createWidget<QWidgetPlatformColorDialog>("ColorDialog", parent);
+#endif
+#if defined(QT_WIDGETS_LIB) && QT_CONFIG(filedialog)
+        case QPlatformTheme::FileDialog: return createWidget<QWidgetPlatformFileDialog>("FileDialog", parent);
+#endif
+#if defined(QT_WIDGETS_LIB) && QT_CONFIG(fontdialog)
+        case QPlatformTheme::FontDialog: return createWidget<QWidgetPlatformFontDialog>("FontDialog", parent);
+#endif
+#if defined(QT_WIDGETS_LIB) && QT_CONFIG(messagebox)
+        case QPlatformTheme::MessageDialog: return createWidget<QWidgetPlatformMessageDialog>("MessageDialog", parent);
+#endif
+        default: break;
+        }
+        return nullptr;
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif // QWIDGETPLATFORM_P_H