1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtGui module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include <qcursor.h>

    43 #include <private/qcursor_p.h>

    44 #include <qbitmap.h>

    45 #include <qwsdisplay_qws.h>

    46 

    47 QT_BEGIN_NAMESPACE

    48 

    49 QT_USE_NAMESPACE

    50 

    51 #ifndef QT_NO_CURSOR

    52 

    53 static int nextCursorId = Qt::BitmapCursor;

    54 

    55 /*****************************************************************************

    56   Internal QCursorData class

    57  *****************************************************************************/

    58 

    59 QCursorData::QCursorData(Qt::CursorShape s)

    60     : cshape(s), bm(0), bmm(0), hx(0), hy(0), id(s)

    61 {

    62     ref = 1;

    63 }

    64 

    65 QCursorData::~QCursorData()

    66 {

    67     delete bm;

    68     delete bmm;

    69     QT_TRY {

    70         QPaintDevice::qwsDisplay()->destroyCursor(id);

    71     } QT_CATCH(const std::bad_alloc &) {

    72         // do nothing.

    73     }

    74 }

    75 

    76 

    77 /*****************************************************************************

    78   Global cursors

    79  *****************************************************************************/

    80 

    81 int QCursor::handle() const

    82 {

    83     return d->id;

    84 }

    85 

    86 

    87 QCursorData *QCursorData::setBitmap(const QBitmap &bitmap, const QBitmap &mask, int hotX, int hotY)

    88 {

    89     if (!QCursorData::initialized)

    90         QCursorData::initialize();

    91     if (bitmap.depth() != 1 || mask.depth() != 1 || bitmap.size() != mask.size()) {

    92         qWarning("QCursor: Cannot create bitmap cursor; invalid bitmap(s)");

    93         QCursorData *c = qt_cursorTable[0];

    94         c->ref.ref();

    95         return c;

    96     }

    97     QCursorData *d = new QCursorData;

    98     d->bm  = new QBitmap(bitmap);

    99     d->bmm = new QBitmap(mask);

   100     d->cshape = Qt::BitmapCursor;

   101     d->id = ++nextCursorId;

   102     d->hx = hotX >= 0 ? hotX : bitmap.width() / 2;

   103     d->hy = hotY >= 0 ? hotY : bitmap.height() / 2;

   104 

   105     QPaintDevice::qwsDisplay()->defineCursor(d->id, *d->bm, *d->bmm, d->hx, d->hy);

   106     return d;

   107 }

   108 

   109 void QCursorData::update()

   110 {

   111 }

   112 

   113 #endif //QT_NO_CURSOR

   114 

   115 extern int *qt_last_x,*qt_last_y;

   116 

   117 QPoint QCursor::pos()

   118 {

   119     // This doesn't know about hotspots yet so we disable it

   120     //qt_accel_update_cursor();

   121     if (qt_last_x)

   122         return QPoint(*qt_last_x, *qt_last_y);

   123     else

   124         return QPoint();

   125 }

   126 

   127 void QCursor::setPos(int x, int y)

   128 {

   129     // Need to check, since some X servers generate null mouse move

   130     // events, causing looping in applications which call setPos() on

   131     // every mouse move event.

   132     //

   133     if (pos() == QPoint(x, y))

   134         return;

   135     QPaintDevice::qwsDisplay()->setCursorPosition(x, y);

   136 }

   137 

   138 QT_END_NAMESPACE