Add Windows to the Lighthouse.

Add an initial Lighthouse plugin for the Windows operating system.

Change-Id: I6934562266e1aa0ac270bf6107df05a9e56ef82c
Reviewed-on: http://codereview.qt.nokia.com/3107
Reviewed-by: Oliver Wolff <oliver.wolff@nokia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

1 files changed, 116 insertions, 0 deletions

diff --git a/src/plugins/platforms/windows/qwindowsdrag.h b/src/plugins/platforms/windows/qwindowsdrag.h
new file mode 100644
index 0000000000..6e6ebe0424
--- /dev/null
+++ b/src/plugins/platforms/windows/qwindowsdrag.h
@@ -0,0 +1,116 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWINDOWSDRAG_H
+#define QWINDOWSDRAG_H
+
+#include "qwindowsinternalmimedata.h"
+
+#include <QtGui/QPlatformDrag>
+
+QT_BEGIN_NAMESPACE
+
+class QWindowsDropMimeData : public QWindowsInternalMimeData {
+public:
+    QWindowsDropMimeData() {}
+    virtual IDataObject *retrieveDataObject() const;
+};
+
+class QWindowsOleDropTarget : public IDropTarget
+{
+public:
+    explicit QWindowsOleDropTarget(QWindow *w);
+    virtual ~QWindowsOleDropTarget();
+
+    // IUnknown methods
+    STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppvObj);
+    STDMETHOD_(ULONG, AddRef)(void);
+    STDMETHOD_(ULONG, Release)(void);
+
+    // IDropTarget methods
+    STDMETHOD(DragEnter)(LPDATAOBJECT pDataObj, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
+    STDMETHOD(DragOver)(DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
+    STDMETHOD(DragLeave)();
+    STDMETHOD(Drop)(LPDATAOBJECT pDataObj, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
+
+private:
+    inline QWindow *findDragOverWindow(const POINTL &pt) const;
+    void sendDragEnterEvent(QWindow *to, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
+
+    ULONG m_refs;
+    QWindow *const m_window;
+    QWindow *m_currentWindow;
+    QRect m_answerRect;
+    QPoint m_lastPoint;
+    DWORD m_chosenEffect;
+    DWORD m_lastKeyState;
+};
+
+class QWindowsDrag : public QPlatformDrag
+{
+public:
+    QWindowsDrag();
+    virtual ~QWindowsDrag();
+
+    virtual QMimeData *platformDropData() { return &m_dropData; }
+
+    virtual void startDrag();
+    virtual void move(const QMouseEvent *me);
+    virtual void drop(const QMouseEvent *me);
+    virtual void cancel();
+
+    static QWindowsDrag *instance();
+
+    IDataObject *dropDataObject() const             { return m_dropDataObject; }
+    void setDropDataObject(IDataObject *dataObject) { m_dropDataObject = dataObject; }
+    void releaseDropDataObject();
+
+    bool dragBeingCancelled() const { return m_dragBeingCancelled; }
+
+private:
+    QWindowsDropMimeData m_dropData;
+    IDataObject *m_dropDataObject;
+    bool m_dragBeingCancelled;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINDOWSDRAG_H