E:/dev/ssip2006/snake/MainWindow.cpp

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#include "MainWindow.h"
#include "ImageLabel.h"

#include <QtGui/QFileDialog>
#include <QtGui/QMessageBox>
#include <QtGui/QRadioButton>

MainWindow::MainWindow(QWidget* parent /* = 0 */, Qt::WindowFlags flags /* = 0 */)
: QMainWindow(parent, flags),
m_scaleFactor(1),
m_ulPt(QPoint(150,150)),
m_lrPt(QPoint(300,300))
{
        // create gui elements defined in the Ui_MainWindow class
        setupUi(this);
        // create and set a QLabel for image loading
        m_imageLabel = new ImageLabel(this, m_imageFrame);
        m_imageLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);
    m_imageLabel->setAlignment(Qt::AlignBottom | Qt::AlignRight);
        m_imageLabel->resize(m_imageFrame->width(), m_imageFrame->height());

        // create a null image
        m_image = new QImage();

        m_iterationOn->setChecked(true);

        // signal - slot connections
        QObject::connect(m_actionOpen, SIGNAL(triggered()), this, SLOT(slotOpen()));
        QObject::connect(m_actionZoomNormal, SIGNAL(triggered()), this, SLOT(slotZoomNormal()));
        QObject::connect(m_snakeButton, SIGNAL(clicked()), this, SLOT(slotSnakeButtonPressed()));
        QObject::connect(m_demoButton, SIGNAL(clicked()), this, SLOT(slotDemoButtonPressed()));
        QObject::connect(m_initEllipseButton, SIGNAL(clicked()), this, SLOT(slotInitCurveButtonPressed()));

        QObject::connect(m_iterationOn, SIGNAL(toggled(bool)), this, SLOT(slotIterationOn()));
        QObject::connect(m_iterationOff, SIGNAL(toggled(bool)), this, SLOT(slotIterationOff()));
        QObject::connect(m_iterationStep, SIGNAL(toggled(bool)), this, SLOT(slotIterationStep()));
}

MainWindow::~MainWindow()
{
        // no need to delete child widgets, QT does it all for us
        if (!m_image->isNull())
        {
                delete m_image;
                m_image = NULL;
        }
}

void MainWindow::showImage(QImage *img)
{
        if(m_imageLabel)
                m_imageLabel->setPixmap(QPixmap::fromImage(*img));
}

void MainWindow::slotOpen()
{
        m_fileName = new QString(QFileDialog::getOpenFileName(this, tr("Open File"), QDir::currentPath()));

        if (!m_fileName->isEmpty())
        {
                m_image->load(*m_fileName);
                if (m_image->isNull())
                {
                        QMessageBox::information(this, tr("Snake Ballooning"),
                                tr("Cannot load %1.").arg(*m_fileName));
                        return;
                }
                m_imageLabel->setPixmap(QPixmap::fromImage(*m_image));
                emit signalImageOpened();
                
                //scaleFactor = 1.0;

        //printAct->setEnabled(true);
        //fitToWindowAct->setEnabled(true);
        //updateActions();

        //if (!fitToWindowAct->isChecked())
        //    imageLabel->adjustSize();
    }
}

//void MainWindow::slotSaveAs()
//{
//      QString filename = QFileDialog::getOpenFileName(this, tr("Open File"), QDir::currentPath());
//      QImage img = m_imageLabel->pixmap()->toImage();
//      img->
//}

void MainWindow::slotSnakeButtonPressed()
{
        emit signalSnakeButtonPressed();
}

void MainWindow::slotDemoButtonPressed()
{
        emit signalDemoButtonPressed();
}

void MainWindow::slotZoomNormal()
{
        qDebug("zoom to original");
}

void MainWindow::slotInitCurveButtonPressed()
{
        emit signalInitCurve();
}

void MainWindow::slotIterationOn()
{
        if (m_iterationOn->isChecked())
                emit signalIterationOn();
}

void MainWindow::slotIterationOff()
{
        if (m_iterationOff->isChecked())
                emit signalIterationOff();
}

void MainWindow::slotIterationStep()
{
        if (m_iterationStep->isChecked())
                emit signalIterationStep();
}

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