/*
    Scan Tailor - Interactive post-processing tool for scanned pages.
    Copyright (C) 2007-2009  Joseph Artsimovich <joseph_a@mail.ru>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef FIXDPIDIALOG_H_
#define FIXDPIDIALOG_H_

#include "ui/ui_FixDpiDialog.h"
#include "ImageFileInfo.h"
#include "ImageMetadata.h"
#include "Dpi.h"
#include <QDialog>
#include <QString>
#include <QItemSelection>
#include <QPalette>
#include <QSize>
#include <vector>
#include <memory>

class QItemSelection;

class FixDpiDialog : public QDialog, private Ui::FixDpiDialog
{
    Q_OBJECT
public:
    FixDpiDialog(std::vector<ImageFileInfo> const& files, QWidget* parent = 0);

    virtual ~FixDpiDialog();

    std::vector<ImageFileInfo> const& files() const;
private slots:
    void tabChanged(int tab);

    void selectionChanged(QItemSelection const& selection);

    void dpiComboChangedByUser(int index);

    void dpiValueChanged();

    void applyClicked();
private:
    class DpiCounts;
    class SizeGroup;
    class TreeModel;
    class FilterModel;

    enum Scope { ALL, NOT_OK };

    void enableDisableOkButton();

    void updateDpiFromSelection(QItemSelection const& selection);

    void resetDpiForm();

    void setDpiForm(ImageMetadata const& metadata);

    void updateDpiCombo();

    void decorateDpiInputField(QLineEdit* field, ImageMetadata::DpiStatus dpi_status) const;

    std::unique_ptr<TreeModel> m_ptrPages;
    std::unique_ptr<FilterModel> m_ptrUndefinedDpiPages;
    QString m_xDpiInitialValue;
    QString m_yDpiInitialValue;
    QSize m_selectedItemPixelSize;
    QPalette m_normalPalette;
    QPalette m_errorPalette;
};

#endif
