advprinttask.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2007-11-07
 * Description : a tool to print images
 *
 * Copyright (C) 2017-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * 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 2, 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.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_ADV_PRINT_TASK_H
#define DIGIKAM_ADV_PRINT_TASK_H
 
// Qt includes
 
#include <QString>
#include <QStringList>
#include <QPainter>
#include <QList>
#include <QRect>
#include <QImage>
 
// Local includes
 
#include "advprintsettings.h"
#include "actionthreadbase.h"
 
using namespace Digikam;
 
namespace DigikamGenericPrintCreatorPlugin
{
 
class AdvPrintTask : public ActionJob
{
    Q_OBJECT
 
public:
 
    enum PrintMode
    {
        PREPAREPRINT = 0,
        PRINT,
        PREVIEW
    };
 
public:
 
    explicit AdvPrintTask(AdvPrintSettings* const settings,
                          PrintMode mode,
                          const QSize& size = QSize(),        
                          int sizeIndex = 0);                 
    ~AdvPrintTask()     override;
 
Q_SIGNALS:
 
    void signalMessage(const QString&, bool);
    void signalDone(bool);
    void signalPreview(const QImage&);
 
private:
 
    // Disable
    explicit AdvPrintTask(QObject*) = delete;
 
private:
 
    void run()          override;
 
    void        preparePrint();
    void        printPhotos();
    QStringList printPhotosToFile();
 
    double getMaxDPI(const QList<AdvPrintPhoto*>& photos,
                     const QList<QRect*>& layouts,
                     int current);
 
    void printCaption(QPainter& p,
                      AdvPrintPhoto* const photo,
                      int captionW,
                      int captionH,
                      const QString& caption);
 
    bool paintOnePage(QPainter& p,
                      const QList<AdvPrintPhoto*>& photos,
                      const QList<QRect*>& layouts,
                      int& current,
                      bool cropDisabled,
                      bool useThumbnails = false);
 
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace DigikamGenericPrintCreatorPlugin
 
#endif // DIGIKAM_ADV_PRINT_TASK_H