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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QEGLFSCURSOR_H
#define QEGLFSCURSOR_H
#include <qpa/qplatformcursor.h>
#include "qeglfsscreen.h"
#include <GLES2/gl2.h>
QT_BEGIN_NAMESPACE
class QOpenGLShaderProgram;
class QEglFSScreen;
class QEglFSCursor : public QPlatformCursor
{
public:
QEglFSCursor(QEglFSScreen *screen);
~QEglFSCursor();
void changeCursor(QCursor *cursor, QWindow *widget) Q_DECL_OVERRIDE;
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;
virtual void paintOnScreen();
protected:
bool setCurrentCursor(QCursor *cursor);
void draw(const QRectF &rect);
void update(const QRegion ®ion);
QEglFSScreen *m_screen;
// current cursor information
struct Cursor {
Cursor() : texture(0), shape(Qt::BlankCursor), customCursorTexture(0) { }
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;
} m_cursor;
private:
void createShaderPrograms();
static void createCursorTexture(uint *texture, const QImage &image);
void initCursorAtlas();
// 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 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;
GLuint m_program;
int m_vertexCoordEntry;
int m_textureCoordEntry;
int m_textureEntry;
};
QT_END_NAMESPACE
#endif // QEGLFSCURSOR_H
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