| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef DESKTOPINPUTSELECTIONCONTROL_P_H |
| 5 | #define DESKTOPINPUTSELECTIONCONTROL_P_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include <QtCore/qpointer.h> |
| 19 | #include <QtCore/qobject.h> |
| 20 | #include <QtGui/qimage.h> |
| 21 | #include <QtVirtualKeyboard/qvirtualkeyboard_global.h> |
| 22 | #include <QtCore/private/qglobal_p.h> |
| 23 | |
| 24 | QT_BEGIN_NAMESPACE |
| 25 | |
| 26 | class QMouseEvent; |
| 27 | class QVirtualKeyboardInputContext; |
| 28 | |
| 29 | namespace QtVirtualKeyboard { |
| 30 | |
| 31 | class InputSelectionHandle; |
| 32 | |
| 33 | class Q_VIRTUALKEYBOARD_EXPORT DesktopInputSelectionControl : public QObject |
| 34 | { |
| 35 | Q_OBJECT |
| 36 | |
| 37 | public: |
| 38 | DesktopInputSelectionControl(QObject *parent, QVirtualKeyboardInputContext *inputContext); |
| 39 | ~DesktopInputSelectionControl() {} |
| 40 | |
| 41 | void createHandles(); |
| 42 | void destroyHandles(); |
| 43 | void setEnabled(bool enable); |
| 44 | QImage *handleImage(); |
| 45 | |
| 46 | public Q_SLOTS: |
| 47 | void updateAnchorHandlePosition(); |
| 48 | void updateCursorHandlePosition(); |
| 49 | void updateVisibility(); |
| 50 | void reloadGraphics(); |
| 51 | protected: |
| 52 | bool eventFilter(QObject *object, QEvent *event) override; |
| 53 | |
| 54 | private: |
| 55 | QRect anchorHandleRect() const; |
| 56 | QRect cursorHandleRect() const; |
| 57 | QRect handleRectForCursorRect(const QRectF &cursorRect) const; |
| 58 | |
| 59 | private: |
| 60 | QVirtualKeyboardInputContext *m_inputContext; |
| 61 | QSharedPointer<InputSelectionHandle> m_anchorSelectionHandle; |
| 62 | QSharedPointer<InputSelectionHandle> m_cursorSelectionHandle; |
| 63 | QImage m_handleImage; |
| 64 | |
| 65 | enum { |
| 66 | HandleIsReleased = 0, |
| 67 | HandleIsHeld = 1, |
| 68 | HandleIsMoving = 2 |
| 69 | }; |
| 70 | enum HandleType { |
| 71 | AnchorHandle = 0, |
| 72 | CursorHandle = 1 |
| 73 | }; |
| 74 | |
| 75 | unsigned m_handleState : 2; |
| 76 | unsigned m_currentDragHandle : 1; |
| 77 | unsigned m_enabled : 1; |
| 78 | unsigned m_anchorHandleVisible : 1; |
| 79 | unsigned m_cursorHandleVisible : 1; |
| 80 | unsigned m_eventFilterEnabled : 1; |
| 81 | QPoint m_otherSelectionPoint; |
| 82 | QList<QMouseEvent*> m_eventQueue; |
| 83 | QPoint m_distanceBetweenMouseAndCursor; |
| 84 | QPoint m_handleDragStartedPosition; |
| 85 | QSize m_handleWindowSize; |
| 86 | }; |
| 87 | } // namespace QtVirtualKeyboard |
| 88 | QT_END_NAMESPACE |
| 89 | |
| 90 | #endif // DESKTOPINPUTSELECTIONCONTROL_P_H |
| 91 |