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Diffstat (limited to 'src/Authoring/Qt3DStudio/Palettes/Inspector/MouseHelper.h')
-rw-r--r-- | src/Authoring/Qt3DStudio/Palettes/Inspector/MouseHelper.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/Authoring/Qt3DStudio/Palettes/Inspector/MouseHelper.h b/src/Authoring/Qt3DStudio/Palettes/Inspector/MouseHelper.h new file mode 100644 index 00000000..8f343bc4 --- /dev/null +++ b/src/Authoring/Qt3DStudio/Palettes/Inspector/MouseHelper.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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 The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef MOUSEHELPER_H +#define MOUSEHELPER_H + +#include <QtCore/qobject.h> +#include <QtCore/qpoint.h> +#include <QtCore/qtimer.h> + +QT_FORWARD_DECLARE_CLASS(QWidget) +QT_FORWARD_DECLARE_CLASS(QWindow) + +class MouseHelper : public QObject +{ + Q_OBJECT + +public: + explicit MouseHelper(QObject *parent = nullptr); + ~MouseHelper() {}; + + Q_INVOKABLE void startUnboundedDrag(); + Q_INVOKABLE void endUnboundedDrag(); + Q_INVOKABLE QPoint delta(); + + void setWidget(QWidget *widget); + +private Q_SLOTS: + void resetCursor(); + +protected: + bool eventFilter(QObject *obj, QEvent *event) override; + +private: + QPoint m_startPos; + QPoint m_referencePoint; + QPoint m_previousPoint; + QTimer m_cursorResetTimer; + + enum DragState { + StateNotDragging, + StateDragging, + StateEndingDrag, + StateFinalCursorReset + }; + DragState m_dragState; + QWidget *m_widget = nullptr; // Not owned + QWindow *m_window = nullptr; // Not owned + QPoint m_maxDelta; +}; + +#endif // MOUSEHELPER_H |