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Diffstat (limited to 'src/plugins/platforms/eglfs/qeglfscursor.h')
-rw-r--r-- | src/plugins/platforms/eglfs/qeglfscursor.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/qeglfscursor.h b/src/plugins/platforms/eglfs/qeglfscursor.h new file mode 100644 index 0000000000..be5db41b37 --- /dev/null +++ b/src/plugins/platforms/eglfs/qeglfscursor.h @@ -0,0 +1,141 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** 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 The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/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. +** +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QEGLFSCURSOR_H +#define QEGLFSCURSOR_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 "qeglfsglobal.h" +#include <qpa/qplatformcursor.h> +#include <qpa/qplatformscreen.h> +#include <QtGui/QOpenGLFunctions> +#include <QtGui/private/qinputdevicemanager_p.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLShaderProgram; +class QEglFSCursor; +class QEglFSScreen; + +class QEglFSCursorDeviceListener : public QObject +{ + Q_OBJECT + +public: + QEglFSCursorDeviceListener(QEglFSCursor *cursor) : m_cursor(cursor) { } + bool hasMouse() const; + +public slots: + void onDeviceListChanged(QInputDeviceManager::DeviceType type); + +private: + QEglFSCursor *m_cursor; +}; + +class Q_EGLFS_EXPORT QEglFSCursor : public QPlatformCursor, protected QOpenGLFunctions +{ + Q_OBJECT +public: + QEglFSCursor(QPlatformScreen *screen); + ~QEglFSCursor(); + +#ifndef QT_NO_CURSOR + void changeCursor(QCursor *cursor, QWindow *widget) Q_DECL_OVERRIDE; +#endif + void pointerEvent(const QMouseEvent &event) Q_DECL_OVERRIDE; + QPoint pos() const Q_DECL_OVERRIDE; + void setPos(const QPoint &pos) Q_DECL_OVERRIDE; + + QRect cursorRect() const; + void paintOnScreen(); + void resetResources(); + + void updateMouseStatus(); + +private: + bool event(QEvent *e) Q_DECL_OVERRIDE; +#ifndef QT_NO_CURSOR + bool setCurrentCursor(QCursor *cursor); +#endif + void draw(const QRectF &rect); + void update(const QRegion ®ion); + void createShaderPrograms(); + void createCursorTexture(uint *texture, const QImage &image); + void initCursorAtlas(); + + // current cursor information + struct Cursor { + Cursor() : texture(0), shape(Qt::BlankCursor), customCursorTexture(0), customCursorPending(false) { } + uint texture; // a texture from 'image' or the atlas + Qt::CursorShape shape; + QRectF textureRect; // normalized rect inside texture + QSize size; // size of the cursor + QPoint hotSpot; + QImage customCursorImage; + QPoint pos; // current cursor position + uint customCursorTexture; + bool customCursorPending; + } m_cursor; + + // cursor atlas information + struct CursorAtlas { + CursorAtlas() : cursorsPerRow(0), texture(0), cursorWidth(0), cursorHeight(0) { } + int cursorsPerRow; + uint texture; + int width, height; // width and height of the atlas + int cursorWidth, cursorHeight; // width and height of cursors inside the atlas + QList<QPoint> hotSpots; + QImage image; // valid until it's uploaded + } m_cursorAtlas; + + bool m_visible; + QEglFSScreen *m_screen; + QOpenGLShaderProgram *m_program; + int m_textureEntry; + QEglFSCursorDeviceListener *m_deviceListener; + bool m_updateRequested; +}; + +QT_END_NAMESPACE + +#endif // QEGLFSCURSOR_H |