#include "dialog.h"
#include "ui_dialog.h"

#include <QPageSetupDialog>
#include <QPrintDialog>

Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);

    //m_printer = new QPrinter( QPrinterInfo::defaultPrinter() );
    m_printer = new QPrinter;

    QPrintDialog *pd = new QPrintDialog(m_printer, this);
    pd->exec();

    updateInfo();

    connect(ui->pushButton, &QAbstractButton::clicked, [=]() {
        QPageSetupDialog dlg(m_printer, this);
        if (dlg.exec() == QDialog::Accepted) {
            updateInfo();
        }
    });

    /*
    auto pageLayout = m_printer->pageLayout();
    pageLayout.setMode(QPageLayout::FullPageMode);
    pageLayout.setMinimumMargins(QMarginsF(0, 0, 0, 0));
    m_printer->setPageLayout(pageLayout);
    */
    connect(ui->pushButton_2, &QAbstractButton::clicked, [=]() {
        m_printer->setPageMargins(QMargins(0, 0, 0, 0), QPageLayout::Millimeter);
        updateInfo();
    });

    connect(ui->pushButton_3, &QAbstractButton::clicked, [=]() {
        m_printer->setPageMargins(QMargins(5, 5, 5, 5), QPageLayout::Millimeter);
        updateInfo();
    });
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::updateInfo()
{
    QString str = QString("Margins <%1 %2 %3 %4>").arg(m_printer->margins().left).arg(m_printer->margins().top).arg(m_printer->margins().right).arg(m_printer->margins().bottom);
    str += QString("\nRect <%1 %2 %3 %4>").arg(m_printer->pageRect().left()).arg(m_printer->pageRect().top()).arg(m_printer->pageRect().right()).arg(m_printer->pageRect().bottom());
    str += QString("\nPage rect <%1 %2 %3 %4>").arg(m_printer->paperRect().left()).arg(m_printer->paperRect().top()).arg(m_printer->paperRect().right()).arg(m_printer->paperRect().bottom());
    QPageLayout lo = m_printer->pageLayout();
    lo.setUnits(QPageLayout::Millimeter);
    QMarginsF mm = lo.minimumMargins();
    str += QString("\n\nMINIMUM Margins <%1 %2 %3 %4>").arg(mm.left()).arg(mm.top()).arg(mm.right()).arg(mm.bottom());

    ui->label->setText(str);
}