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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/

#include "pdfimportoptions.h"
#include "ui_pdfimportoptions.h"
#include "importpdf.h"
#include "ui/createrange.h"
#include "usertaskstructs.h"
#include "iconmanager.h"

PdfImportOptions::PdfImportOptions(QWidget *parent) : QDialog(parent), ui(new Ui::PdfImportOptions)
{
        ui->setupUi(this);
        ui->pageSelectButton->setIcon(IconManager::instance()->loadIcon("ellipsis.png"));
        m_plugin = nullptr;
        m_maxPage = 0;
        m_resized = false;
}

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

void PdfImportOptions::resizeEvent(QResizeEvent *e)
{
        m_resized = true;
        QDialog::resizeEvent(e);
}

void PdfImportOptions::paintEvent(QPaintEvent *e)
{
        if (m_resized)
                updatePreview(ui->pgSelect->getCurrentPage());
        m_resized = false;
        QDialog::paintEvent(e);
}

QString PdfImportOptions::getPagesString()
{
        if (ui->allPages->isChecked())
                return "*";
        if (ui->singlePage->isChecked())
                return QString("%1").arg(ui->spinBox->value());
        return ui->pageRangeString->text();
}

int PdfImportOptions::getCropBox()
{
        int ret = 0;
        if (ui->cropGroup->isChecked())
                ret = ui->cropBox->currentIndex();
        return ret;
}

bool PdfImportOptions::croppingEnabled()
{
        return ui->cropGroup->isChecked();
}

void PdfImportOptions::setUpOptions(const QString& fileName, int actPage, int numPages, bool interact, bool cropPossible, PdfPlug* plug)
{
        m_plugin = plug;
        ui->fileLabel->setText(fileName);
        ui->spinBox->setMaximum(numPages);
        ui->spinBox->setMinimum(actPage);
        ui->spinBox->setValue(actPage);
        ui->cropGroup->setVisible(cropPossible);
        ui->cropGroup->setChecked(cropPossible);
        ui->cropBox->setCurrentIndex(3); // Use CropBox by default
        if (interact)
        {
                ui->allPages->setChecked(false);
                ui->selectedPages->setChecked(false);
                ui->allPages->setEnabled(false);
                ui->selectedPages->setEnabled(false);
                ui->singlePage->setChecked(true);
                ui->spinBox->setEnabled(true);
        }
        else
                ui->allPages->setChecked(true);
        ui->pageRangeString->setText("");
        ui->pgSelect->setMaximum(numPages);
        ui->pgSelect->setGUIForPage(actPage - 1);
        m_maxPage = numPages;
        updatePreview(actPage);
        connect(ui->pgSelect, SIGNAL(GotoPage(int)), this, SLOT(updatePreview(int)));
        connect(ui->spinBox, SIGNAL(valueChanged(int)), this, SLOT(updateFromSpinBox(int)));
        connect(ui->spinBox, SIGNAL(valueChanged(int)), this, SLOT(updatePreview(int)));
        connect(ui->pageSelectButton, SIGNAL(clicked()), this, SLOT(createPageNumberRange()));
        connect(ui->cropGroup, SIGNAL(clicked()), this, SLOT(updateFromCrop()));
        connect(ui->cropBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateFromCrop()));
}

void PdfImportOptions::updateFromCrop()
{
        updatePreview(ui->pgSelect->getCurrentPage());
}

void PdfImportOptions::updateFromSpinBox(int pg)
{
        ui->pgSelect->setGUIForPage(pg - 1);
}

void PdfImportOptions::updatePreview(int pg)
{
        if (!m_plugin)
                return;

        int cb = 0;
        if (ui->cropGroup->isChecked())
                cb =  ui->cropBox->currentIndex();
        QImage img = m_plugin->readPreview(pg, ui->previewWidget->width(), ui->previewWidget->height(), cb);
        ui->previewWidget->setPixmap(QPixmap::fromImage(img));
        disconnect(ui->spinBox, SIGNAL(valueChanged(int)), this, SLOT(updateFromSpinBox(int)));
        disconnect(ui->spinBox, SIGNAL(valueChanged(int)), this, SLOT(updatePreview(int)));
        ui->spinBox->setValue(pg);
        connect(ui->spinBox, SIGNAL(valueChanged(int)), this, SLOT(updateFromSpinBox(int)));
        connect(ui->spinBox, SIGNAL(valueChanged(int)), this, SLOT(updatePreview(int)));
}

void PdfImportOptions::createPageNumberRange()
{
        CreateRange cr(ui->pageRangeString->text(), m_maxPage, this);
        if (cr.exec())
        {
                CreateRangeData crData;
                cr.getCreateRangeData(crData);
                ui->pageRangeString->setText(crData.pageRange);
        }
}