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

     2 **

     3 ** Copyright (C) 2009 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 test suite 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 "mainwindow.h"

    43 #include "ui_mainwindow.h"

    44 

    45 #include <QTimer>

    46 #include <QBitmap>

    47 #include <QImage>

    48 #include <QPainter>

    49 #include <QKeyEvent>

    50 

    51 MainWindow::MainWindow(QWidget *parent) :

    52     QMainWindow(parent), ui(new Ui::MainWindow)

    53 {

    54     ui->setupUi(this);

    55     QPixmap pix(":/data/monkey_on_64x64.png");

    56 

    57     QImage mask(16, 16, QImage::Format_MonoLSB);

    58     QImage bw(16, 16, QImage::Format_MonoLSB);

    59     mask.fill(0);

    60     bw.fill(0);

    61     for (int x = 0; x < 16; x++) {

    62         bw.setPixel(x, x, 1);

    63         bw.setPixel(x, 15 - x, 1);

    64         mask.setPixel(x, x, 1);

    65         mask.setPixel(x, 15 - x, 1);

    66         if (x > 0 && x < 15) {

    67             mask.setPixel(x - 1, x, 1);

    68             mask.setPixel(x + 1, x, 1);

    69             mask.setPixel(x - 1, 15 - x, 1);

    70             mask.setPixel(x + 1, 15 - x, 1);

    71         }

    72     }

    73 

    74     ccurs = QCursor(pix);

    75     bcurs = QCursor(QBitmap::fromImage(bw), QBitmap::fromImage(mask));

    76     ui->label->setCursor(ccurs);

    77 

    78     timer = new QTimer(this);

    79     connect(timer, SIGNAL(timeout()), this, SLOT(toggleOverrideCursor()));

    80     timer->start(2000);

    81 

    82     override = 0;

    83 }

    84 

    85 MainWindow::~MainWindow()

    86 {

    87     delete timer;

    88     delete ui;

    89 }

    90 

    91 void MainWindow::toggleOverrideCursor()

    92 {

    93     switch (override) {

    94     case 0:

    95         QApplication::setOverrideCursor(Qt::BusyCursor);

    96         break;

    97     case 1:

    98         QApplication::restoreOverrideCursor();

    99         break;

   100     case 2:

   101         ui->label->grabMouse(Qt::ForbiddenCursor);

   102         break;

   103     case 3:

   104     case 5:

   105         ui->label->releaseMouse();

   106         break;

   107     case 4:

   108         ui->label->grabMouse();

   109         break;

   110     case 6:

   111         ui->label->setCursor(bcurs);

   112         break;

   113     case 7:

   114         ui->label->setCursor(ccurs);

   115         break;

   116     }

   117     override = (override + 1) % 8;

   118 }

   119 

   120 void MainWindow::keyPressEvent(QKeyEvent* event)

   121 {

   122     QPoint off(0, 0);

   123     switch (event->key()) {

   124     case Qt::Key_Up:

   125         off.setY(-4);

   126         break;

   127     case Qt::Key_Down:

   128         off.setY(4);

   129         break;

   130     case Qt::Key_Left:

   131         off.setX(-4);

   132         break;

   133     case Qt::Key_Right:

   134         off.setX(4);

   135         break;

   136     default:

   137         return QMainWindow::keyPressEvent(event);

   138     }

   139     off += QCursor::pos();

   140     QCursor::setPos(off);

   141 }