#include <QGridLayout>

#include <QImage>

#include <QPixmap>

#include <QMessageBox>

#include <QFile>

#include <QTextStream>

#include <QRegExp>

#include <QDebug>

#include "mainform.h"

MyWindow::MyWindow(QWidget * parent, Qt::WFlags flags)

        : QMainWindow(parent, flags)

{

    QWidget * centralWidget = new QWidget(this);

    QGridLayout * mainlayout = new QGridLayout(centralWidget);

    mainlayout->setMargin(1);

    mainlayout->setSpacing(1);

    sa_xy = new QScrollArea(centralWidget);

    xy = new PixLabel();

    xy->setFixedSize(1024, 512);

    sa_xy->setWidget(xy);

    mainlayout->addWidget(sa_xy, 0, 0, 1, 4);

    setCentralWidget(centralWidget);

    buttAdd = new QPushButton(centralWidget);

    buttAdd->setText(tr("Add"));

    mainlayout->addWidget(buttAdd, 1, 0);

    buttCode = new QPushButton(centralWidget);

    buttCode->setText(tr("Code"));

    mainlayout->addWidget(buttCode, 1, 1);

    buttSave = new QPushButton(centralWidget);

    buttSave->setText(tr("Save"));

    mainlayout->addWidget(buttSave, 1, 3);

    buttLoad = new QPushButton(centralWidget);

    buttLoad->setText(tr("Load"));

    mainlayout->addWidget(buttLoad, 1, 2);

    connect(buttAdd, SIGNAL(clicked()), xy, SLOT(AddRect()));

    connect(buttCode, SIGNAL(clicked()), this, SLOT(Code()));

    connect(buttSave, SIGNAL(clicked()), this, SLOT(Save()));

    connect(buttLoad, SIGNAL(clicked()), this, SLOT(Load()));

}

void MyWindow::Code()

{

    if (xy->rects.size())

    {

        QFile f("template.pas");

        if (!f.open(QIODevice::WriteOnly))

        {

            QMessageBox::information(this, tr("Error"),

                        tr("Cannot save"));

            return ;

        }

        QTextStream stream(&f);

        stream << QString("const Template0Points: array[0..%1] of TSDL_Rect =").arg(xy->rects.size() - 1) << endl;

        stream << "      (" << endl;

        for(int i = 0; i < xy->rects.size(); i++)

        {

            QRect r = xy->rects[i].normalized();

            stream << QString("       (x: %1; y: %2; w: %3; h: %4),").

                    arg(r.x() * 4, 4).arg(r.y() * 4, 4).arg(r.width() * 4, 4).arg(r.height() * 4, 4) << endl;

        }

        stream << "      );" << endl;

        f.close();

    }

}

void MyWindow::Save()

{

    Code();

}

void MyWindow::Load()

{

    QFile f("template.pas");

    if (!f.open(QIODevice::ReadOnly))

    {

        QMessageBox::information(this, tr("Error"),

                    tr("Cannot open file"));

        return ;

    }

    QTextStream stream(&f);

    QStringList sl;

    while (!stream.atEnd())

    {

        sl << stream.readLine();

    }

    xy->rects.clear();

    for (int i = 0; i < sl.size(); ++i)

    {

        QRegExp re("x:\\s*(\\d+);\\sy:\\s*(\\d+);\\sw:\\s*(\\d+);\\sh:\\s*(\\d+)");

        re.indexIn(sl.at(i));

        QStringList coords = re.capturedTexts();

        qDebug() << sl.at(i) << coords;

        if ((coords.size() == 5) && (coords[0].size()))

            xy->rects.push_back(QRect(coords[1].toInt() / 4, coords[2].toInt() / 4, coords[3].toInt() / 4, coords[4].toInt() / 4));

    }

    f.close();

    xy->repaint();

}