Windows-4.7.4/src/gui/kernel/qcursor_mac.mm

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** 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.
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** 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:
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** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
**
****************************************************************************/

#include <private/qcursor_p.h>
#include <private/qpixmap_mac_p.h>
#include <qapplication.h>
#include <qbitmap.h>
#include <qcursor.h>
#include <qevent.h>
#include <string.h>
#include <unistd.h>
#include <AppKit/NSCursor.h>
#include <qpainter.h>
#include <private/qt_cocoa_helpers_mac_p.h>

QT_BEGIN_NAMESPACE

/*****************************************************************************
  Externals
 *****************************************************************************/
extern QCursorData *qt_cursorTable[Qt::LastCursor + 1];
extern OSWindowRef qt_mac_window_for(const QWidget *); //qwidget_mac.cpp
extern GrafPtr qt_mac_qd_context(const QPaintDevice *); //qpaintdevice_mac.cpp
extern bool qt_sendSpontaneousEvent(QObject *, QEvent *); //qapplication_mac.cpp

/*****************************************************************************
  Internal QCursorData class
 *****************************************************************************/

class QMacAnimateCursor : public QObject
{
    int timerId, step;
    ThemeCursor curs;
public:
    QMacAnimateCursor() : QObject(), timerId(-1) { }
    void start(ThemeCursor c) {
        step = 1;
        if(timerId != -1)
            killTimer(timerId);
        timerId = startTimer(300);
        curs = c;
    }
    void stop() {
        if(timerId != -1) {
            killTimer(timerId);
            timerId = -1;
        }
    }
protected:
    void timerEvent(QTimerEvent *e) {
        if(e->timerId() == timerId) {
            /*
            if(SetAnimatedThemeCursor(curs, step++) == themeBadCursorIndexErr)
                stop();
            */
        }
    }
};

void *qt_mac_nsCursorForQCursor(const QCursor &c)
{
    c.d->update();
    return [[static_cast<NSCursor *>(c.d->curs.cp.nscursor) retain] autorelease];
}

static QCursorData *currentCursor = 0; //current cursor
void qt_mac_set_cursor(const QCursor *c, const QPoint &)
{
#ifdef QT_MAC_USE_COCOA
    Q_UNUSED(c);
    return;
#else
    if (!c) {
        currentCursor = 0;
        return;
    }
    c->handle(); //force the cursor to get loaded, if it's not

    if(currentCursor && currentCursor->type == QCursorData::TYPE_ThemeCursor
            && currentCursor->curs.tc.anim)
        currentCursor->curs.tc.anim->stop();
    if(c->d->type == QCursorData::TYPE_ImageCursor) {
        [static_cast<NSCursor *>(c->d->curs.cp.nscursor) set];
    } else if(c->d->type == QCursorData::TYPE_ThemeCursor) {
        if(SetAnimatedThemeCursor(c->d->curs.tc.curs, 0) == themeBadCursorIndexErr) {
            SetThemeCursor(c->d->curs.tc.curs);
        } else {
            if(!c->d->curs.tc.anim)
                c->d->curs.tc.anim = new QMacAnimateCursor;
            c->d->curs.tc.anim->start(c->d->curs.tc.curs);
        }
    }
    currentCursor = c->d;
#endif
}

void qt_mac_update_cursor_at_global_pos(const QPoint &globalPos)
{
#ifdef QT_MAC_USE_COCOA
    Q_UNUSED(globalPos);
    return;
#else
    QCursor cursor(Qt::ArrowCursor);
    if (QApplication::overrideCursor()) {
        cursor = *QApplication::overrideCursor();
    } else {
        for(QWidget *w = QApplication::widgetAt(globalPos); w; w = w->parentWidget()) {
            if(w->testAttribute(Qt::WA_SetCursor)) {
                cursor = w->cursor();
                break;
            }
        }
    }
    qt_mac_set_cursor(&cursor, globalPos);
#endif
}

void qt_mac_update_cursor()
{
    qt_mac_update_cursor_at_global_pos(QCursor::pos());
}

static int nextCursorId = Qt::BitmapCursor;

QCursorData::QCursorData(Qt::CursorShape s)
    : cshape(s), bm(0), bmm(0), hx(-1), hy(-1), mId(s), type(TYPE_None)
{
    ref = 1;
    memset(&curs, '\0', sizeof(curs));
}

QCursorData::~QCursorData()
{
    if (type == TYPE_ImageCursor) {
        if (curs.cp.my_cursor) {
            QMacCocoaAutoReleasePool pool;
            [static_cast<NSCursor *>(curs.cp.nscursor) release];
        }
    } else if(type == TYPE_ThemeCursor) {
        delete curs.tc.anim;
    }
    type = TYPE_None;

    delete bm;
    delete bmm;
    if(currentCursor == this)
        currentCursor = 0;
}

QCursorData *QCursorData::setBitmap(const QBitmap &bitmap, const QBitmap &mask, int hotX, int hotY)
{
    if (!QCursorData::initialized)
        QCursorData::initialize();
    if (bitmap.depth() != 1 || mask.depth() != 1 || bitmap.size() != mask.size()) {
        qWarning("Qt: QCursor: Cannot create bitmap cursor; invalid bitmap(s)");
        QCursorData *c = qt_cursorTable[0];
        c->ref.ref();
        return c;
    }
    // This is silly, but this is apparently called outside the constructor, so we have
    // to be ready for that case.
    QCursorData *x = new QCursorData;
    x->ref = 1;
    x->mId = ++nextCursorId;
    x->bm  = new QBitmap(bitmap);
    x->bmm = new QBitmap(mask);
    x->cshape = Qt::BitmapCursor;
    x->hx = hotX >= 0 ? hotX : bitmap.width() / 2;
    x->hy = hotY >= 0 ? hotY : bitmap.height() / 2;
    return x;
}

Qt::HANDLE QCursor::handle() const
{
    if(!QCursorData::initialized)
        QCursorData::initialize();
    if(d->type == QCursorData::TYPE_None)
        d->update();
    return (Qt::HANDLE)d->mId;
}

QPoint QCursor::pos()
{
    return flipPoint([NSEvent mouseLocation]).toPoint();
}

void QCursor::setPos(int x, int y)
{
#ifdef QT_MAC_USE_COCOA
    CGPoint pos;
    pos.x = x;
    pos.y = y;

    CGEventRef e = CGEventCreateMouseEvent(0, kCGEventMouseMoved, pos, 0);
    CGEventPost(kCGHIDEventTap, e);
    CFRelease(e);
#else
    CGWarpMouseCursorPosition(CGPointMake(x, y));

    /* I'm not too keen on doing this, but this makes it a lot easier, so I just
       send the event back through the event system and let it get propagated correctly
       ideally this would not really need to be faked --Sam
    */
    QWidget *widget = 0;
    if(QWidget *grb = QWidget::mouseGrabber())
        widget = grb;
    else
        widget = QApplication::widgetAt(QPoint(x, y));
    if(widget) {
        QMouseEvent me(QMouseEvent::MouseMove, widget->mapFromGlobal(QPoint(x, y)), Qt::NoButton,
                       QApplication::mouseButtons(), QApplication::keyboardModifiers());
        qt_sendSpontaneousEvent(widget, &me);
    }
#endif
}

void QCursorData::initCursorFromBitmap()
{
    NSImage *nsimage;
    QImage finalCursor(bm->size(), QImage::Format_ARGB32);
    QImage bmi = bm->toImage().convertToFormat(QImage::Format_RGB32);
    QImage bmmi = bmm->toImage().convertToFormat(QImage::Format_RGB32);
    for (int row = 0; row < finalCursor.height(); ++row) {
        QRgb *bmData = reinterpret_cast<QRgb *>(bmi.scanLine(row));
        QRgb *bmmData = reinterpret_cast<QRgb *>(bmmi.scanLine(row));
        QRgb *finalData = reinterpret_cast<QRgb *>(finalCursor.scanLine(row));
        for (int col = 0; col < finalCursor.width(); ++col) {
            if (bmmData[col] == 0xff000000 && bmData[col] == 0xffffffff) {
                finalData[col] = 0xffffffff;
            } else if (bmmData[col] == 0xff000000 && bmData[col] == 0xffffffff) {
                finalData[col] = 0x7f000000;
            } else if (bmmData[col] == 0xffffffff && bmData[col] == 0xffffffff) {
                finalData[col] = 0x00000000;
            } else {
                finalData[col] = 0xff000000;
            }
        }
    }
    type = QCursorData::TYPE_ImageCursor;
    curs.cp.my_cursor = true;
    QPixmap bmCopy = QPixmap::fromImage(finalCursor);
    NSPoint hotSpot = { hx, hy };
    nsimage = static_cast<NSImage*>(qt_mac_create_nsimage(bmCopy));
    curs.cp.nscursor = [[NSCursor alloc] initWithImage:nsimage hotSpot: hotSpot];
    [nsimage release];
}

void QCursorData::initCursorFromPixmap()
{
    type = QCursorData::TYPE_ImageCursor;
    curs.cp.my_cursor = true;
    NSPoint hotSpot = { hx, hy };
    NSImage *nsimage;
    nsimage = static_cast<NSImage *>(qt_mac_create_nsimage(pixmap));
    curs.cp.nscursor = [[NSCursor alloc] initWithImage:nsimage hotSpot: hotSpot];
    [nsimage release];
}

void QCursorData::update()
{
    if(!QCursorData::initialized)
        QCursorData::initialize();
    if(type != QCursorData::TYPE_None)
        return;

    /* Note to self... ***
     * mask x data
     * 0xFF x 0x00 == fully opaque white
     * 0x00 x 0xFF == xor'd black
     * 0xFF x 0xFF == fully opaque black
     * 0x00 x 0x00 == fully transparent
     */

    if (hx < 0)
        hx = 0;
    if (hy < 0)
        hy = 0;

#define QT_USE_APPROXIMATE_CURSORS
#ifdef QT_USE_APPROXIMATE_CURSORS
    static const uchar cur_ver_bits[] = {
        0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x03, 0xc0, 0x07, 0xe0, 0x0f, 0xf0,
        0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x0f, 0xf0,
        0x07, 0xe0, 0x03, 0xc0, 0x01, 0x80, 0x00, 0x00 };
    static const uchar mcur_ver_bits[] = {
        0x00, 0x00, 0x03, 0x80, 0x07, 0xc0, 0x0f, 0xe0, 0x1f, 0xf0, 0x3f, 0xf8,
        0x7f, 0xfc, 0x07, 0xc0, 0x07, 0xc0, 0x07, 0xc0, 0x7f, 0xfc, 0x3f, 0xf8,
        0x1f, 0xf0, 0x0f, 0xe0, 0x07, 0xc0, 0x03, 0x80 };

    static const uchar cur_hor_bits[] = {
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x20, 0x18, 0x30,
        0x38, 0x38, 0x7f, 0xfc, 0x7f, 0xfc, 0x38, 0x38, 0x18, 0x30, 0x08, 0x20,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
    static const uchar mcur_hor_bits[] = {
        0x00, 0x00, 0x00, 0x00, 0x04, 0x40, 0x0c, 0x60, 0x1c, 0x70, 0x3c, 0x78,
        0x7f, 0xfc, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0x7f, 0xfc, 0x3c, 0x78,
        0x1c, 0x70, 0x0c, 0x60, 0x04, 0x40, 0x00, 0x00 };

    static const uchar cur_fdiag_bits[] = {
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf8, 0x00, 0xf8, 0x00, 0x78,
        0x00, 0xf8, 0x01, 0xd8, 0x23, 0x88, 0x37, 0x00, 0x3e, 0x00, 0x3c, 0x00,
        0x3e, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00 };
    static const uchar mcur_fdiag_bits[] = {
        0x00, 0x00, 0x00, 0x00, 0x07, 0xfc, 0x03, 0xfc, 0x01, 0xfc, 0x00, 0xfc,
        0x41, 0xfc, 0x63, 0xfc, 0x77, 0xdc, 0x7f, 0x8c, 0x7f, 0x04, 0x7e, 0x00,
        0x7f, 0x00, 0x7f, 0x80, 0x7f, 0xc0, 0x00, 0x00 };

    static const uchar cur_bdiag_bits[] = {
        0x00, 0x00, 0x00, 0x00, 0x3f, 0x00, 0x3e, 0x00, 0x3c, 0x00, 0x3e, 0x00,
        0x37, 0x00, 0x23, 0x88, 0x01, 0xd8, 0x00, 0xf8, 0x00, 0x78, 0x00, 0xf8,
        0x01, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
    static const uchar mcur_bdiag_bits[] = {
        0x00, 0x00, 0x7f, 0xc0, 0x7f, 0x80, 0x7f, 0x00, 0x7e, 0x00, 0x7f, 0x04,
        0x7f, 0x8c, 0x77, 0xdc, 0x63, 0xfc, 0x41, 0xfc, 0x00, 0xfc, 0x01, 0xfc,
        0x03, 0xfc, 0x07, 0xfc, 0x00, 0x00, 0x00, 0x00 };

    static const unsigned char cur_up_arrow_bits[] = {
        0x00, 0x80, 0x01, 0x40, 0x01, 0x40, 0x02, 0x20, 0x02, 0x20, 0x04, 0x10,
        0x04, 0x10, 0x08, 0x08, 0x0f, 0x78, 0x01, 0x40, 0x01, 0x40, 0x01, 0x40,
        0x01, 0x40, 0x01, 0x40, 0x01, 0x40, 0x01, 0xc0 };
    static const unsigned char mcur_up_arrow_bits[] = {
        0x00, 0x80, 0x01, 0xc0, 0x01, 0xc0, 0x03, 0xe0, 0x03, 0xe0, 0x07, 0xf0,
        0x07, 0xf0, 0x0f, 0xf8, 0x0f, 0xf8, 0x01, 0xc0, 0x01, 0xc0, 0x01, 0xc0,
        0x01, 0xc0, 0x01, 0xc0, 0x01, 0xc0, 0x01, 0xc0 };
#endif
    const uchar *cursorData = 0;
    const uchar *cursorMaskData = 0;
#ifdef QT_MAC_USE_COCOA
    switch (cshape) {                        // map Q cursor to MAC cursor
    case Qt::BitmapCursor: {
        if (pixmap.isNull())
            initCursorFromBitmap();
        else
            initCursorFromPixmap();
        break; }
    case Qt::BlankCursor: {
        pixmap = QPixmap(16, 16);
        pixmap.fill(Qt::transparent);
        initCursorFromPixmap();
        break; }
    case Qt::ArrowCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor arrowCursor];
        break; }
    case Qt::CrossCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor crosshairCursor];
        break; }
    case Qt::WaitCursor: {
        pixmap = QPixmap(QLatin1String(":/trolltech/mac/cursors/images/spincursor.png"));
        initCursorFromPixmap();
        break; }
    case Qt::IBeamCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor IBeamCursor];
        break; }
    case Qt::SizeAllCursor: {
        pixmap = QPixmap(QLatin1String(":/trolltech/mac/cursors/images/pluscursor.png"));
        initCursorFromPixmap();
        break; }
    case Qt::WhatsThisCursor: { //for now just use the pointing hand
    case Qt::PointingHandCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor pointingHandCursor];
        break; }
    case Qt::BusyCursor: {
        pixmap = QPixmap(QLatin1String(":/trolltech/mac/cursors/images/waitcursor.png"));
        initCursorFromPixmap();
        break; }
    case Qt::SplitVCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor resizeUpDownCursor];
        break; }
    case Qt::SplitHCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor resizeLeftRightCursor];
        break; }
    case Qt::ForbiddenCursor: {
        pixmap = QPixmap(QLatin1String(":/trolltech/mac/cursors/images/forbiddencursor.png"));
        initCursorFromPixmap();
        break; }
    case Qt::OpenHandCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor openHandCursor];
        break;
    case Qt::ClosedHandCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor closedHandCursor];
        break;
    case Qt::DragCopyCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor dragCopyCursor];
        break;
    case Qt::DragMoveCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor arrowCursor];
        break;
    case Qt::DragLinkCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.cp.nscursor = [NSCursor dragLinkCursor];
        break;
#define QT_USE_APPROXIMATE_CURSORS
#ifdef QT_USE_APPROXIMATE_CURSORS
    case Qt::SizeVerCursor:
        cursorData = cur_ver_bits;
        cursorMaskData = mcur_ver_bits;
        hx = hy = 8;
        break;
    case Qt::SizeHorCursor:
        cursorData = cur_hor_bits;
        cursorMaskData = mcur_hor_bits;
        hx = hy = 8;
        break;
    case Qt::SizeBDiagCursor:
        cursorData = cur_fdiag_bits;
        cursorMaskData = mcur_fdiag_bits;
        hx = hy = 8;
        break;
    case Qt::SizeFDiagCursor:
        cursorData = cur_bdiag_bits;
        cursorMaskData = mcur_bdiag_bits;
        hx = hy = 8;
        break;
    case Qt::UpArrowCursor:
        cursorData = cur_up_arrow_bits;
        cursorMaskData = mcur_up_arrow_bits;
        hx = 8;
        break;
#endif
    default:
        qWarning("Qt: QCursor::update: Invalid cursor shape %d", cshape);
        return;
    }
#else
    // Carbon
    switch (cshape) {                        // map Q cursor to MAC cursor
    case Qt::BitmapCursor: {
        if (pixmap.isNull())
            initCursorFromBitmap();
        else
            initCursorFromPixmap();
        break; }
    case Qt::BlankCursor: {
        pixmap = QPixmap(16, 16);
        pixmap.fill(Qt::transparent);
        initCursorFromPixmap();
        break; }
    case Qt::ArrowCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeArrowCursor;
        break; }
    case Qt::CrossCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeCrossCursor;
        break; }
    case Qt::WaitCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeWatchCursor;
        break; }
    case Qt::IBeamCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeIBeamCursor;
        break; }
    case Qt::SizeAllCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemePlusCursor;
        break; }
    case Qt::WhatsThisCursor: { //for now just use the pointing hand
    case Qt::PointingHandCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemePointingHandCursor;
        break; }
    case Qt::BusyCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeSpinningCursor;
        break; }
    case Qt::SplitVCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeResizeUpDownCursor;
        break; }
    case Qt::SplitHCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeResizeLeftRightCursor;
        break; }
    case Qt::ForbiddenCursor: {
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeNotAllowedCursor;
        break; }
    case Qt::OpenHandCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeOpenHandCursor;
        break;
    case Qt::ClosedHandCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeClosedHandCursor;
        break;
    case Qt::DragMoveCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeArrowCursor;
        break;
    case Qt::DragCopyCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeCopyArrowCursor;
        break;
    case Qt::DragLinkCursor:
        type = QCursorData::TYPE_ThemeCursor;
        curs.tc.curs = kThemeAliasArrowCursor;
        break;
#define QT_USE_APPROXIMATE_CURSORS
#ifdef QT_USE_APPROXIMATE_CURSORS
    case Qt::SizeVerCursor:
        cursorData = cur_ver_bits;
        cursorMaskData = mcur_ver_bits;
        hx = hy = 8;
        break;
    case Qt::SizeHorCursor:
        cursorData = cur_hor_bits;
        cursorMaskData = mcur_hor_bits;
        hx = hy = 8;
        break;
    case Qt::SizeBDiagCursor:
        cursorData = cur_fdiag_bits;
        cursorMaskData = mcur_fdiag_bits;
        hx = hy = 8;
        break;
    case Qt::SizeFDiagCursor:
        cursorData = cur_bdiag_bits;
        cursorMaskData = mcur_bdiag_bits;
        hx = hy = 8;
        break;
    case Qt::UpArrowCursor:
        cursorData = cur_up_arrow_bits;
        cursorMaskData = mcur_up_arrow_bits;
        hx = 8;
        break;
#endif
    default:
        qWarning("Qt: QCursor::update: Invalid cursor shape %d", cshape);
        return;
    }
#endif

    if (cursorData) {
        bm = new QBitmap(QBitmap::fromData(QSize(16, 16), cursorData,
                    QImage::Format_Mono));
        bmm = new QBitmap(QBitmap::fromData(QSize(16, 16), cursorMaskData,
                    QImage::Format_Mono));
        initCursorFromBitmap();
    }

#if 0
    if(type == QCursorData::TYPE_CursPtr && curs.cp.hcurs && curs.cp.my_cursor) {
        curs.cp.hcurs->hotSpot.h = hx >= 0 ? hx : 8;
        curs.cp.hcurs->hotSpot.v = hy >= 0 ? hy : 8;
    }
#endif
}

QT_END_NAMESPACE