147 lines
5.1 KiB
C++
147 lines
5.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the plugins of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QWINDOWSMOUSEHANDLER_H
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#define QWINDOWSMOUSEHANDLER_H
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#include "qtwindowsglobal.h"
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#include <QtCore/qt_windows.h>
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#include <QtCore/qpointer.h>
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#include <QtCore/qhash.h>
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#include <QtGui/qevent.h>
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QT_BEGIN_NAMESPACE
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class QWindow;
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class QTouchDevice;
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class QWindowsMouseHandler
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{
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Q_DISABLE_COPY(QWindowsMouseHandler)
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public:
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QWindowsMouseHandler();
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QTouchDevice *touchDevice() const { return m_touchDevice; }
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QTouchDevice *ensureTouchDevice();
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bool translateMouseEvent(QWindow *widget, HWND hwnd,
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QtWindows::WindowsEventType t, MSG msg,
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LRESULT *result);
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bool translateTouchEvent(QWindow *widget, HWND hwnd,
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QtWindows::WindowsEventType t, MSG msg,
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LRESULT *result);
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bool translateGestureEvent(QWindow *window, HWND hwnd,
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QtWindows::WindowsEventType,
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MSG msg, LRESULT *);
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bool translateScrollEvent(QWindow *window, HWND hwnd,
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MSG msg, LRESULT *result);
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static inline Qt::MouseButtons keyStateToMouseButtons(WPARAM);
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static inline Qt::KeyboardModifiers keyStateToModifiers(int);
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static inline int mouseButtonsToKeyState(Qt::MouseButtons);
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static Qt::MouseButtons queryMouseButtons();
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QWindow *windowUnderMouse() const { return m_windowUnderMouse.data(); }
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void clearWindowUnderMouse() { m_windowUnderMouse = 0; }
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void clearEvents();
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private:
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inline bool translateMouseWheelEvent(QWindow *window, HWND hwnd,
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MSG msg, LRESULT *result);
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QPointer<QWindow> m_windowUnderMouse;
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QPointer<QWindow> m_trackedWindow;
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QHash<DWORD, int> m_touchInputIDToTouchPointID;
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QHash<int, QPointF> m_lastTouchPositions;
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QTouchDevice *m_touchDevice = nullptr;
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bool m_leftButtonDown = false;
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QWindow *m_previousCaptureWindow = nullptr;
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QEvent::Type m_lastEventType = QEvent::None;
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Qt::MouseButton m_lastEventButton = Qt::NoButton;
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};
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Qt::MouseButtons QWindowsMouseHandler::keyStateToMouseButtons(WPARAM wParam)
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{
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Qt::MouseButtons mb(Qt::NoButton);
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if (wParam & MK_LBUTTON)
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mb |= Qt::LeftButton;
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if (wParam & MK_MBUTTON)
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mb |= Qt::MiddleButton;
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if (wParam & MK_RBUTTON)
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mb |= Qt::RightButton;
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if (wParam & MK_XBUTTON1)
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mb |= Qt::XButton1;
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if (wParam & MK_XBUTTON2)
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mb |= Qt::XButton2;
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return mb;
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}
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Qt::KeyboardModifiers QWindowsMouseHandler::keyStateToModifiers(int wParam)
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{
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Qt::KeyboardModifiers mods(Qt::NoModifier);
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if (wParam & MK_CONTROL)
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mods |= Qt::ControlModifier;
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if (wParam & MK_SHIFT)
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mods |= Qt::ShiftModifier;
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if (GetKeyState(VK_MENU) < 0)
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mods |= Qt::AltModifier;
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return mods;
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}
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int QWindowsMouseHandler::mouseButtonsToKeyState(Qt::MouseButtons mb)
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{
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int result = 0;
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if (mb & Qt::LeftButton)
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result |= MK_LBUTTON;
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if (mb & Qt::MiddleButton)
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result |= MK_MBUTTON;
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if (mb & Qt::RightButton)
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result |= MK_RBUTTON;
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if (mb & Qt::XButton1)
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result |= MK_XBUTTON1;
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if (mb & Qt::XButton2)
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result |= MK_XBUTTON2;
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return result;
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}
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QT_END_NAMESPACE
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#endif // QWINDOWSMOUSEHANDLER_H
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