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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 QWINDOWSMOUSEHANDLER_H
#define QWINDOWSMOUSEHANDLER_H
#include "qtwindowsglobal.h"
#include "qtwindows_additional.h"
#include <QtCore/QPointer>
#include <QtCore/QHash>
QT_BEGIN_NAMESPACE
class QWindow;
class QTouchDevice;
class QWindowsMouseHandler
{
Q_DISABLE_COPY(QWindowsMouseHandler)
public:
QWindowsMouseHandler();
bool translateMouseEvent(QWindow *widget, HWND hwnd,
QtWindows::WindowsEventType t, MSG msg,
LRESULT *result);
bool translateTouchEvent(QWindow *widget, HWND hwnd,
QtWindows::WindowsEventType t, MSG msg,
LRESULT *result);
static inline Qt::MouseButtons keyStateToMouseButtons(int);
static inline Qt::KeyboardModifiers keyStateToModifiers(int);
static inline int mouseButtonsToKeyState(Qt::MouseButtons);
static Qt::MouseButtons queryMouseButtons();
QWindow *windowUnderMouse() const { return m_windowUnderMouse.data(); }
void clearWindowUnderMouse() { m_windowUnderMouse = 0; }
private:
inline bool translateMouseWheelEvent(QWindow *window, HWND hwnd,
MSG msg, LRESULT *result);
QPointer<QWindow> m_windowUnderMouse;
QPointer<QWindow> m_trackedWindow;
QHash<DWORD, int> m_touchInputIDToTouchPointID;
QHash<int, QPointF> m_lastTouchPositions;
QTouchDevice *m_touchDevice;
bool m_leftButtonDown;
QWindow *m_previousCaptureWindow;
};
Qt::MouseButtons QWindowsMouseHandler::keyStateToMouseButtons(int wParam)
{
Qt::MouseButtons mb(Qt::NoButton);
if (wParam & MK_LBUTTON)
mb |= Qt::LeftButton;
if (wParam & MK_MBUTTON)
mb |= Qt::MiddleButton;
if (wParam & MK_RBUTTON)
mb |= Qt::RightButton;
if (wParam & MK_XBUTTON1)
mb |= Qt::XButton1;
if (wParam & MK_XBUTTON2)
mb |= Qt::XButton2;
return mb;
}
Qt::KeyboardModifiers QWindowsMouseHandler::keyStateToModifiers(int wParam)
{
Qt::KeyboardModifiers mods(Qt::NoModifier);
if (wParam & MK_CONTROL)
mods |= Qt::ControlModifier;
if (wParam & MK_SHIFT)
mods |= Qt::ShiftModifier;
if (GetKeyState(VK_MENU) < 0)
mods |= Qt::AltModifier;
return mods;
}
int QWindowsMouseHandler::mouseButtonsToKeyState(Qt::MouseButtons mb)
{
int result = 0;
if (mb & Qt::LeftButton)
result |= MK_LBUTTON;
if (mb & Qt::MiddleButton)
result |= MK_MBUTTON;
if (mb & Qt::RightButton)
result |= MK_RBUTTON;
if (mb & Qt::XButton1)
result |= MK_XBUTTON1;
if (mb & Qt::XButton2)
result |= MK_XBUTTON2;
return result;
}
QT_END_NAMESPACE
#endif // QWINDOWSMOUSEHANDLER_H
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