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** This file is part of the test suite of the Qt Toolkit.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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

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

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****************************************************************************/

#include "mainwindow.h"

#include "ui_mainwindow.h"

#include <QTimer>

#include <QBitmap>

#include <QImage>

#include <QPainter>

#include <QKeyEvent>

MainWindow::MainWindow(QWidget *parent) :

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

{

    ui->setupUi(this);

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

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

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

    mask.fill(0);

    bw.fill(0);

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

        bw.setPixel(x, x, 1);

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

        mask.setPixel(x, x, 1);

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

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

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

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

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

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

        }

    }

    ccurs = QCursor(pix);

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

    ui->label->setCursor(ccurs);

    timer = new QTimer(this);

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

    timer->start(2000);

    override = 0;

}

MainWindow::~MainWindow()

{

    delete timer;

    delete ui;

}

void MainWindow::toggleOverrideCursor()

{

    switch (override) {

    case 0:

        QApplication::setOverrideCursor(Qt::BusyCursor);

        break;

    case 1:

        QApplication::restoreOverrideCursor();

        break;

    case 2:

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

        break;

    case 3:

    case 5:

        ui->label->releaseMouse();

        break;

    case 4:

        ui->label->grabMouse();

        break;

    case 6:

        ui->label->setCursor(bcurs);

        break;

    case 7:

        ui->label->setCursor(ccurs);

        break;

    }

    override = (override + 1) % 8;

}

void MainWindow::keyPressEvent(QKeyEvent* event)

{

    QPoint off(0, 0);

    switch (event->key()) {

    case Qt::Key_Up:

        off.setY(-4);

        break;

    case Qt::Key_Down:

        off.setY(4);

        break;

    case Qt::Key_Left:

        off.setX(-4);

        break;

    case Qt::Key_Right:

        off.setX(4);

        break;

    default:

        return QMainWindow::keyPressEvent(event);

    }

    off += QCursor::pos();

    QCursor::setPos(off);

}