4686b7af03
Change-Id: I696f6ce2ee9b6055c549e615de952773d171f3e7 Reviewed-on: http://codereview.qt.nokia.com/408 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: David Boddie
158 lines
4.3 KiB
C++
158 lines
4.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "vibrationsurface.h"
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#include <QtGui/QPainter>
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#include <QtCore/QLine>
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#include <QtGui/QMouseEvent>
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#include <QtGui/QScreen>
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#include <QtCore/QRect>
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#include <QtGui/QColor>
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#include "xqvibra.h"
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//! [4]
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const int NumberOfLevels = 10;
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const double IntensityFactor = XQVibra::MaxIntensity / NumberOfLevels;
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//! [4]
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VibrationSurface::VibrationSurface(XQVibra *vibra, QWidget *parent) :
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QWidget(parent),
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vibra(vibra),
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lastIntensity(0)
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{
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}
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//! [0]
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void VibrationSurface::mousePressEvent(QMouseEvent *event)
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{
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applyIntensity(event->x(), event->y());
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vibra->start();
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}
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//! [0]
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//! [1]
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void VibrationSurface::mouseMoveEvent(QMouseEvent *event)
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{
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applyIntensity(event->x(), event->y());
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}
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//! [1]
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//! [2]
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void VibrationSurface::mouseReleaseEvent(QMouseEvent *)
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{
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vibra->stop();
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}
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//! [2]
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//! [5]
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void VibrationSurface::paintEvent(QPaintEvent *)
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{
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QPainter painter(this);
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QRect rect = geometry();
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int dx = 0, dy = 0;
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if (height() > width()) {
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dy = height() / NumberOfLevels;
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rect.setHeight(dy);
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} else {
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dx = width() / NumberOfLevels;
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rect.setWidth(dx);
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}
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//! [5]
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//! [6]
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for (int i = 0; i < NumberOfLevels; i++) {
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int x = i * dx;
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int y = i * dy;
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int intensity = getIntensity(x, y);
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QColor color = QColor(40, 80, 10).lighter(100 + intensity);
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rect.moveTo(x, y);
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painter.fillRect(rect, color);
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painter.setPen(color.darker());
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painter.drawText(rect, Qt::AlignCenter, QString::number(intensity));
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}
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}
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//! [6]
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//! [7]
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int VibrationSurface::getIntensity(int x, int y)
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{
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int level;
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int coord;
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if (height() > width()) {
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level = height() / NumberOfLevels;
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coord = y;
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} else {
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level = width() / NumberOfLevels;
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coord = x;
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}
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if (level == 0) {
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return 0;
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}
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//! [7]
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//! [8]
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int intensity = (coord / level + 1) * IntensityFactor;
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if (intensity < 0) {
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intensity = 0;
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} else if (intensity > XQVibra::MaxIntensity) {
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intensity = XQVibra::MaxIntensity;
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}
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return intensity;
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}
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//! [8]
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//! [3]
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void VibrationSurface::applyIntensity(int x, int y)
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{
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int intensity = getIntensity(x, y);
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if (intensity != lastIntensity) {
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vibra->setIntensity(intensity);
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lastIntensity = intensity;
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}
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}
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//! [3]
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