window.cpp

#include <QtGui>

#include "renderarea.h"
#include "packager.h"
#include "window.h"

const int IdRole = Qt::UserRole;

Window::Window()
{
    renderArea = new RenderArea;

    algComboBox = new QComboBox;
    algComboBox->addItem(tr("NFDH"),    1);
    algComboBox->addItem(tr("FFDH"),    2);
    algComboBox->addItem(tr("BFDH"),    3);
    algComboBox->addItem(tr("KP01"),    4);
    algComboBox->addItem(tr("SF"),      5);
    algComboBox->addItem(tr("JOIN"),    6);
    algComboBox->addItem(tr("FCNR"),    7);
    algComboBox->addItem(tr("Sleator"), 8);
    algComboBox->addItem(tr("Burke"),   9);

    algLabel = new QLabel(tr("&Algorithm:"));
    algLabel->setBuddy(algComboBox);

    connect(algComboBox, SIGNAL(activated(int)),
            this, SLOT(algChanged()));

    inpFlag = new QRadioButton("Online input");

    connect(inpFlag, SIGNAL(toggled(bool)),
            this, SLOT(inpChanged()));

    paramSlider = new QSlider(Qt::Vertical);
    paramSlider->setTickInterval(10);

    connect(paramSlider, SIGNAL(sliderMoved(int)),
            this, SLOT(parChanged()));

    parLabel = new QLabel(tr("0"));
    parLabel->setBuddy(paramSlider);

    QGridLayout *mainLayout = new QGridLayout;
    mainLayout->setColumnStretch(0, 1);
    mainLayout->setColumnStretch(3, 1);
    mainLayout->addWidget(renderArea, 0, 0, 1, 4);
    mainLayout->addWidget(paramSlider, 0, 3);
    mainLayout->addWidget(parLabel, 1, 3);
    mainLayout->addWidget(algLabel, 2, 0, Qt::AlignRight);
    mainLayout->addWidget(algComboBox, 2, 1);
    mainLayout->addWidget(inpFlag, 2, 2);

    setLayout(mainLayout);
    setWindowTitle(tr("2D Strip Packing demo"));
}

void Window::algChanged()
{
    int number = int(algComboBox->itemData(
                         algComboBox->currentIndex(),
                         IdRole).toInt());
    renderArea->setAlg(number);
    renderArea->update();
}

void Window::inpChanged()
{
    bool checked = bool(inpFlag->isChecked());

    algComboBox->clear();
    if (checked) {
        algComboBox->addItem(tr("NFL"),     10);
        algComboBox->addItem(tr("FFL"),     11);
        algComboBox->addItem(tr("BFL"),     12);
        algComboBox->addItem(tr("BiNFL"),   13);
        algComboBox->addItem(tr("NFS"),     14);
        algComboBox->addItem(tr("FFS"),     15);
        algComboBox->addItem(tr("BFS"),     16);
        algComboBox->addItem(tr("HS"),      17);
        algComboBox->addItem(tr("Azar"),    18);
        algComboBox->addItem(tr("CA"),      19);
        algComboBox->addItem(tr("CPF"),     20);
        algComboBox->addItem(tr("CFF"),     21);
        algComboBox->addItem(tr("CC"),      22);
        algComboBox->addItem(tr("OF"),      23);
        renderArea->setAlg(10);
    } else {
        algComboBox->addItem(tr("NFDH"),    1);
        algComboBox->addItem(tr("FFDH"),    2);
        algComboBox->addItem(tr("BFDH"),    3);
        algComboBox->addItem(tr("KP01"),    4);
        algComboBox->addItem(tr("SF"),      5);
        algComboBox->addItem(tr("JOIN"),    6);
        algComboBox->addItem(tr("FCNR"),    7);
        algComboBox->addItem(tr("Sleator"), 8);
        algComboBox->addItem(tr("Burke"),   9);
        renderArea->setAlg(1);
    }
    renderArea->update();
}

void Window::parChanged()
{
    QString text;
    text.setNum(paramSlider->value());
    qreal value =   static_cast<qreal>(paramSlider->value())
                  / static_cast<qreal>(100);

    parLabel->setText("0."+text);
    parLabel->update();

    renderArea->setParameter(value);
    renderArea->reuseAlg();
    renderArea->update();
}