DlgImportCroppingPdf.h

Go to the documentation of this file.

/******************************************************************************************************
 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released      *
 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission.     *
 ******************************************************************************************************/
 
#ifndef DLG_IMPORT_CROPPING_PDF_H
#define DLG_IMPORT_CROPPING_PDF_H
 
#include <QDialog>
#include <QImage>
#include <QObject>
 
namespace Poppler {
  class Document;
}
class PdfCropping;
class QGraphicsPixmapItem;
class QGridLayout;
class QGraphicsScene;
class QRectF;
class QSpinBox;
class QString;
class QTimer;
class ViewPreview;

class DlgImportCroppingPdf : public QDialog
{
  Q_OBJECT;
 
public:
  DlgImportCroppingPdf (const Poppler::Document &document,
                        int resolution);
  virtual ~DlgImportCroppingPdf ();

  QImage image () const;

  virtual void showEvent (QShowEvent *event);
 
private slots:

  void slotCancel();

  void slotOk ();

  void slotPage (int);

  void slotTimeout ();
 
private:
  DlgImportCroppingPdf();
 
  void createPageSpinner (QGridLayout *layout,
                          int &row);
  void createPdfCropping ();
  void createPreview (QGridLayout *layout,
                      int &row);
  void createTimer ();
  void finishPanel (QWidget *subPanel);
  void initializeFrameGeometryAndPixmap ();
  QImage loadImage (int page1Based) const;

  static int MINIMUM_DIALOG_WIDTH;

  static int MINIMUM_PREVIEW_HEIGHT;
 
  void saveGeometryToSettings ();
  void updatePreview ();
 
  QSpinBox *m_spinPage;
  QPushButton *m_btnCancel;
  QPushButton *m_btnOk;
 
  QTimer *m_timer;
  const Poppler::Document &m_document;
  int m_resolution;
  QImage m_image; // Needed so it can be passed to external code when this dialog has finished successfully
  QGraphicsPixmapItem *m_pixmap; // Needed so old image can be removed just before new one gets added
 
  QGraphicsScene *m_scenePreview;
  ViewPreview *m_viewPreview;
 
  PdfCropping *m_pdfCropping;
};
 
#endif // DLG_IMPORT_CROPPING_PDF_H