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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#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:
QGuiApplication::setOverrideCursor(Qt::BusyCursor);
break;
case 1:
QGuiApplication::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);
}
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