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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWINDOWSCURSOR_H
#define QWINDOWSCURSOR_H
#include "qtwindows_additional.h"
#include <qpa/qplatformcursor.h>
#include <QtCore/QSharedDataPointer>
#include <QtCore/QHash>
QT_BEGIN_NAMESPACE
class QWindowsWindowCursorData;
struct QWindowsCursorCacheKey
{
explicit QWindowsCursorCacheKey(const QCursor &c);
explicit QWindowsCursorCacheKey(Qt::CursorShape s) : shape(s), bitmapCacheKey(0), maskCacheKey(0) {}
QWindowsCursorCacheKey() : shape(Qt::CustomCursor), bitmapCacheKey(0), maskCacheKey(0) {}
Qt::CursorShape shape;
qint64 bitmapCacheKey;
qint64 maskCacheKey;
};
inline bool operator==(const QWindowsCursorCacheKey &k1, const QWindowsCursorCacheKey &k2)
{
return k1.shape == k2.shape && k1.bitmapCacheKey == k2.bitmapCacheKey && k1.maskCacheKey == k2.maskCacheKey;
}
inline uint qHash(const QWindowsCursorCacheKey &k, uint seed) Q_DECL_NOTHROW
{
return (uint(k.shape) + uint(k.bitmapCacheKey) + uint(k.maskCacheKey)) ^ seed;
}
class QWindowsWindowCursor
{
public:
QWindowsWindowCursor();
explicit QWindowsWindowCursor(const QCursor &c);
~QWindowsWindowCursor();
QWindowsWindowCursor(const QWindowsWindowCursor &c);
QWindowsWindowCursor &operator=(const QWindowsWindowCursor &c);
bool isNull() const;
QCursor cursor() const;
HCURSOR handle() const;
private:
QSharedDataPointer<QWindowsWindowCursorData> m_data;
};
class QWindowsCursor : public QPlatformCursor
{
public:
enum CursorState {
CursorShowing,
CursorHidden,
CursorSuppressed // Cursor suppressed by touch interaction (Windows 8).
};
QWindowsCursor();
void changeCursor(QCursor * widgetCursor, QWindow * widget) Q_DECL_OVERRIDE;
QPoint pos() const Q_DECL_OVERRIDE;
void setPos(const QPoint &pos) Q_DECL_OVERRIDE;
static HCURSOR createPixmapCursor(const QPixmap &pixmap, const QPoint &hotSpot);
static HCURSOR createSystemCursor(const QCursor &c);
static QCursor customCursor(Qt::CursorShape cursorShape);
static QPoint mousePosition();
static CursorState cursorState();
QWindowsWindowCursor standardWindowCursor(Qt::CursorShape s = Qt::ArrowCursor);
QWindowsWindowCursor pixmapWindowCursor(const QCursor &c);
private:
typedef QHash<QWindowsCursorCacheKey, QWindowsWindowCursor> CursorCache;
CursorCache m_cursorCache;
};
QT_END_NAMESPACE
#endif // QWINDOWSCURSOR_H
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