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<pre> /****************************************************************************
**
** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
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** This file is part of the example classes of the Qt Toolkit.
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#include "calibration.h"
#include <QWSPointerCalibrationData>
#include <QPainter>
#include <QFile>
#include <QTimer>
#include <QApplication>
#include <QDesktopWidget>
#include <QMouseEvent>
#include <QScreen>
#include <QWSServer>
Calibration::Calibration()
{
QRect desktop = QApplication::desktop()->geometry();
desktop.moveTo(QPoint(0, 0));
setGeometry(desktop);
setFocusPolicy(Qt::StrongFocus);
setFocus();
setModal(true);
int width = qt_screen->deviceWidth();
int height = qt_screen->deviceHeight();
int dx = width / 10;
int dy = height / 10;
QPoint *points = data.screenPoints;
points[QWSPointerCalibrationData::TopLeft] = QPoint(dx, dy);
points[QWSPointerCalibrationData::BottomLeft] = QPoint(dx, height - dy);
points[QWSPointerCalibrationData::BottomRight] = QPoint(width - dx, height - dy);
points[QWSPointerCalibrationData::TopRight] = QPoint(width - dx, dy);
points[QWSPointerCalibrationData::Center] = QPoint(width / 2, height / 2);
pressCount = 0;
}
Calibration::~Calibration()
{
}
int Calibration::exec()
{
QWSServer::mouseHandler()->clearCalibration();
grabMouse();
activateWindow();
int ret = QDialog::exec();
releaseMouse();
return ret;
}
void Calibration::paintEvent(QPaintEvent*)
{
QPainter p(this);
p.fillRect(rect(), Qt::white);
QPoint point = data.screenPoints[pressCount];
p.fillRect(point.x() - 6, point.y() - 1, 13, 3, Qt::black);
p.fillRect(point.x() - 1, point.y() - 6, 3, 13, Qt::black);
}
void Calibration::mouseReleaseEvent(QMouseEvent *event)
{
QSize screenSize(qt_screen->width(), qt_screen->height());
QPoint p = qt_screen->mapToDevice(event->pos(), screenSize);
data.devPoints[pressCount] = p;
if (++pressCount < 5)
repaint();
else
accept();
}
void Calibration::accept()
{
Q_ASSERT(pressCount == 5);
QWSServer::mouseHandler()->calibrate(&data);
QDialog::accept();
}</pre>
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