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icrandomizer.cpp
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icrandomizer.cpp
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/****************************************************************************
**
** Author: Miroslav Safr <miroslav.safr@gmail.com>
** Web: http://safrm.net/projects/icRandomizer
**
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
****************************************************************************/
#include <QtGui>
#include "icrandomizer.h"
QSize Randomizer::DefaultPictureSize(280, 280);
const QSize Randomizer::ResultSize(500,500);
const int Randomizer::UpdateTimeMs(500);
QString Randomizer::ImagesDir("images");
QString Randomizer::DefaultLogo(":/logo.png");
Randomizer::Randomizer():
m_list(),
m_iRandomCount(0),
m_iPictureCounter(0),
m_iPictureCountInDir(0)
{
sourceButton = new QToolButton;
sourceButton->setIconSize(DefaultPictureSize);
connect(sourceButton, SIGNAL(clicked()), this, SLOT(chooseSourcePicture()));
startButton = new QPushButton("Start Countdown");
connect(startButton, SIGNAL(clicked()), this, SLOT(startCountDown()));
resetButton = new QPushButton("Reset");
connect(resetButton, SIGNAL(clicked()), this, SLOT(reload()));
changeDirButton = new QPushButton(QDir(ImagesDir).absolutePath());
connect(changeDirButton, SIGNAL(clicked()), this, SLOT(changeDir()));
statusLabel = new QLabel;
QGridLayout *mainLayout = new QGridLayout;
mainLayout->addWidget(sourceButton, 0, 0 , Qt::AlignVCenter |Qt::AlignHCenter );
mainLayout->addWidget(startButton, 1, 0 );
mainLayout->addWidget(resetButton, 2, 0 );
mainLayout->addWidget(changeDirButton, 3, 0 );
mainLayout->addWidget(statusLabel, 4, 0 , Qt::AlignHCenter);
mainLayout->setSizeConstraint(QLayout::SetFixedSize);
setLayout(mainLayout);
timer = new QTimer;
connect(timer, SIGNAL(timeout()), this, SLOT(showNextImage()));
setWindowTitle(tr("Image Randomizer [safrm.net]"));
reload();
}
void Randomizer::chooseSourcePicture()
{
if(timer->isActive()) //quick fix not to cheat :)
return;
QString fileName = QFileDialog::getOpenFileName(this, tr("Choose Source Picture"));
if (!fileName.isEmpty())
loadImage(fileName, &sourceImage, sourceButton);
}
void Randomizer::loadImage(const QString &fileName, QImage *image, QToolButton *button, bool bWinner)
{
image->load(fileName);
QImage fixedImage(DefaultPictureSize, QImage::Format_ARGB32_Premultiplied);
QPainter painter(&fixedImage);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.fillRect(fixedImage.rect(), Qt::transparent);
painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
painter.drawImage(imagePos(*image), *image);
painter.end();
button->setIcon(QPixmap::fromImage(fixedImage));
sourceButton->setIconSize(DefaultPictureSize);
statusLabel->setText(QFileInfo(fileName).baseName());
*image = fixedImage;
}
QPoint Randomizer::imagePos(const QImage &image) const
{
return QPoint((DefaultPictureSize.width() - image.width()) / 2,
(DefaultPictureSize.height() - image.height()) / 2);
}
void Randomizer::startCountDown()
{
//reload();
m_iRandomCount = 10 + getRandomNumber(10); //10 - 20 hits * 500ms = 5 - 10s
m_iPictureCountInDir = m_list.size();
m_iPictureCounter = 0;
//no images found
if(m_iPictureCountInDir<=0)
return;
timer->start(UpdateTimeMs);
changeDirButton->setEnabled(false);
startButton->setEnabled(false);
}
void Randomizer::showNextImage()
{
if (m_iPictureCounter < m_iRandomCount) {
changeImage(m_iPictureCountInDir);
++m_iPictureCounter;
} else {
timer->stop();
changeImage(m_iPictureCountInDir, true);
sourceButton->setIconSize(ResultSize);
changeDirButton->setEnabled(true);
startButton->setEnabled(true);
centerWindow(true);
}
}
void Randomizer::reload()
{
timer->stop();
changeDirButton->setEnabled(true);
startButton->setEnabled(true);
QDir dir(ImagesDir);
dir.setFilter(QDir::Files | QDir::Hidden | QDir::NoSymLinks);
m_list = dir.entryInfoList();
QFileInfo logoPict(ImagesDir + "/logo.png");
if (logoPict.exists()) {
m_list.removeOne(logoPict);
QImage img(logoPict.absoluteFilePath());
loadImage(logoPict.absoluteFilePath(), &sourceImage, sourceButton);
DefaultPictureSize = img.size();
} else {
loadImage(DefaultLogo, &sourceImage, sourceButton);
DefaultPictureSize = sourceImage.size();
}
sourceButton->setIconSize(DefaultPictureSize );
centerWindow();
statusLabel->setText(QString("loaded: ") + QString::number(m_list.size()) + QString(" images"));
}
int Randomizer::getRandomNumber(int iRange)
{
if (iRange==0)
return 0;
static bool bSeed(false);
if( !bSeed ) {
qsrand(QTime::currentTime().msec());
bSeed = true;
}
double dRand = rand();
int iRandom = ((int)(dRand) % iRange); //10-30s
return iRandom;
}
void Randomizer:: changeImage(int iCount, bool bWinner)
{
int iRandomPic = getRandomNumber(iCount);
QFileInfo fileInfo = m_list.at(iRandomPic);
loadImage(fileInfo.absoluteFilePath(), &sourceImage, sourceButton, bWinner);
}
void Randomizer::centerWindow(bool bMax)
{
adjustSize();
move(QApplication::desktop()->screen()->rect().center() - rect().center());
}
void Randomizer::changeDir()
{
changeDirButton = new QPushButton(QDir(ImagesDir).absolutePath());
QString newDir = QFileDialog::getExistingDirectory(this, tr("Choose Source Dir"));
if (!newDir.isEmpty()) {
ImagesDir = newDir;
changeDirButton->setText(ImagesDir);
reload();
}
}