118 lines
2.3 KiB
C++
118 lines
2.3 KiB
C++
#include "vibrationsurface.h"
|
|
#include <QtGui/QPainter>
|
|
#include <QtCore/QLine>
|
|
#include <QtGui/QMouseEvent>
|
|
#include <QtGui/QScreen>
|
|
#include <QtCore/QRect>
|
|
#include <QtGui/QColor>
|
|
|
|
#include "xqvibra.h"
|
|
|
|
//! [4]
|
|
const int NumberOfLevels = 10;
|
|
const double IntensityFactor = XQVibra::MaxIntensity / NumberOfLevels;
|
|
//! [4]
|
|
|
|
VibrationSurface::VibrationSurface(XQVibra *vibra, QWidget *parent) :
|
|
QWidget(parent),
|
|
vibra(vibra),
|
|
lastIntensity(0)
|
|
{
|
|
}
|
|
|
|
//! [0]
|
|
void VibrationSurface::mousePressEvent(QMouseEvent *event)
|
|
{
|
|
applyIntensity(event->x(), event->y());
|
|
vibra->start();
|
|
}
|
|
//! [0]
|
|
|
|
//! [1]
|
|
void VibrationSurface::mouseMoveEvent(QMouseEvent *event)
|
|
{
|
|
applyIntensity(event->x(), event->y());
|
|
}
|
|
//! [1]
|
|
|
|
//! [2]
|
|
void VibrationSurface::mouseReleaseEvent(QMouseEvent *)
|
|
{
|
|
vibra->stop();
|
|
}
|
|
//! [2]
|
|
|
|
//! [5]
|
|
void VibrationSurface::paintEvent(QPaintEvent *)
|
|
{
|
|
QPainter painter(this);
|
|
QRect rect = geometry();
|
|
int dx = 0, dy = 0;
|
|
|
|
if (height() > width()) {
|
|
dy = height() / NumberOfLevels;
|
|
rect.setHeight(dy);
|
|
} else {
|
|
dx = width() / NumberOfLevels;
|
|
rect.setWidth(dx);
|
|
}
|
|
//! [5]
|
|
//! [6]
|
|
for (int i = 0; i < NumberOfLevels; i++) {
|
|
int x = i * dx;
|
|
int y = i * dy;
|
|
int intensity = getIntensity(x, y);
|
|
QColor color = QColor(40, 80, 10).lighter(100 + intensity);
|
|
|
|
rect.moveTo(x, y);
|
|
painter.fillRect(rect, color);
|
|
painter.setPen(color.darker());
|
|
painter.drawText(rect, Qt::AlignCenter, QString::number(intensity));
|
|
}
|
|
}
|
|
//! [6]
|
|
|
|
//! [7]
|
|
int VibrationSurface::getIntensity(int x, int y)
|
|
{
|
|
int level;
|
|
int coord;
|
|
|
|
if (height() > width()) {
|
|
level = height() / NumberOfLevels;
|
|
coord = y;
|
|
} else {
|
|
level = width() / NumberOfLevels;
|
|
coord = x;
|
|
}
|
|
|
|
if (level == 0) {
|
|
return 0;
|
|
}
|
|
//! [7]
|
|
//! [8]
|
|
int intensity = (coord / level + 1) * IntensityFactor;
|
|
|
|
if (intensity < 0) {
|
|
intensity = 0;
|
|
} else if (intensity > XQVibra::MaxIntensity) {
|
|
intensity = XQVibra::MaxIntensity;
|
|
}
|
|
|
|
return intensity;
|
|
}
|
|
//! [8]
|
|
|
|
//! [3]
|
|
void VibrationSurface::applyIntensity(int x, int y)
|
|
{
|
|
int intensity = getIntensity(x, y);
|
|
|
|
if (intensity != lastIntensity) {
|
|
vibra->setIntensity(intensity);
|
|
lastIntensity = intensity;
|
|
}
|
|
}
|
|
//! [3]
|
|
|