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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
****************************************************************************/
#ifndef DESKTOPINPUTSELECTIONCONTROL_P_H
#define DESKTOPINPUTSELECTIONCONTROL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qpointer.h>
#include <QtCore/qobject.h>
#include <QtGui/qimage.h>
#include <QtVirtualKeyboard/qvirtualkeyboard_global.h>
QT_BEGIN_NAMESPACE
class QMouseEvent;
class QVirtualKeyboardInputContext;
namespace QtVirtualKeyboard {
class InputSelectionHandle;
class QVIRTUALKEYBOARD_EXPORT DesktopInputSelectionControl : public QObject
{
Q_OBJECT
public:
DesktopInputSelectionControl(QObject *parent, QVirtualKeyboardInputContext *inputContext);
~DesktopInputSelectionControl() {}
void createHandles();
void destroyHandles();
void setEnabled(bool enable);
QImage *handleImage();
public Q_SLOTS:
void updateAnchorHandlePosition();
void updateCursorHandlePosition();
void updateVisibility();
void reloadGraphics();
protected:
bool eventFilter(QObject *object, QEvent *event) override;
private:
QRect anchorHandleRect() const;
QRect cursorHandleRect() const;
QRect handleRectForCursorRect(const QRectF &cursorRect) const;
private:
QVirtualKeyboardInputContext *m_inputContext;
QSharedPointer<InputSelectionHandle> m_anchorSelectionHandle;
QSharedPointer<InputSelectionHandle> m_cursorSelectionHandle;
QImage m_handleImage;
enum {
HandleIsReleased = 0,
HandleIsHeld = 1,
HandleIsMoving = 2
};
enum HandleType {
AnchorHandle = 0,
CursorHandle = 1
};
unsigned m_handleState : 2;
unsigned m_currentDragHandle : 1;
unsigned m_enabled : 1;
unsigned m_anchorHandleVisible : 1;
unsigned m_cursorHandleVisible : 1;
unsigned m_eventFilterEnabled : 1;
QPoint m_otherSelectionPoint;
QVector <QMouseEvent*> m_eventQueue;
QPoint m_distanceBetweenMouseAndCursor;
QPoint m_handleDragStartedPosition;
QSize m_handleWindowSize;
};
} // namespace QtVirtualKeyboard
QT_END_NAMESPACE
#endif // DESKTOPINPUTSELECTIONCONTROL_P_H
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