File indexing completed on 2024-04-21 05:43:21

 /***************************************************************************
  *   Copyright (C) 2006 by David Saxton                                    *
  *   david@bluehaze.org                                                    *
  *                                                                         *
  *   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 of the License, or     *
  *   (at your option) any later version.                                   *
  ***************************************************************************/
 
 #ifndef DPIMAGE_H
 #define DPIMAGE_H
 
 #include "drawpart.h"
 
 #include <QImage>
 #include <QPixmap>
 #include <QThread>
 
 /**
 @short Thread to perform quick and then good image scaling.
 @author David Saxton
 */
 class ImageScaleThread : public QThread
 {
 public:
     enum BestScaling { Unscaled, NormalScaled, SmoothScaled };
 
     ImageScaleThread();
     /**
      * Use the given settings.
      * @return if any of the settings changed.
      */
     bool updateSettings(const QString &imageURL, int width, int height);
     /**
      * @param scaling is set to the type of scaling that this image has had.
      * @return the best image done so far.
      */
     QImage bestScaling(BestScaling *scaling = nullptr) const;
 
 protected:
     /**
      * Start scaling.
      */
     void run() override;
 
     QImage m_image;
     QImage m_normalScaled;
     QImage m_smoothScaled;
 
     bool m_bDoneNormalScale;
     bool m_bDoneSmoothScale;
 
     int m_width;
     int m_height;
     QString m_imageURL;
     bool m_bSettingsChanged;
 };
 
 /**
 @short Represents editable text on the canvas
 @author David Saxton
  */
 class DPImage : public DrawPart
 {
     Q_OBJECT
 public:
     DPImage(ItemDocument *itemDocument, bool newItem, const char *id = nullptr);
     ~DPImage() override;
 
     static Item *construct(ItemDocument *itemDocument, bool newItem, const char *id);
     static LibraryItem *libraryItem();
 
     void setSelected(bool yes) override;
 
 protected:
     void postResize() override;
 
 protected slots:
     /**
      * Called from a timeout event after resizing to see if the image
      * resizing thread has done anything useful yet.
      */
     void checkImageScaling();
 
 private:
     void drawShape(QPainter &p) override;
     void dataChanged() override;
 
     ImageScaleThread::BestScaling m_imageScaling;
     QPixmap m_image;
     ImageScaleThread m_imageScaleThread;
     RectangularOverlay *m_pRectangularOverlay;
     QTimer *m_pCheckImageScalingTimer;
     QString m_imageURL;
     bool m_bSettingsChanged;
 
     /**
      * If we have been loaded from a file, etc, then we want to keep the
      * previous size instead of resizing ourselves to the new image size
      * like we would do normally if the user loads an image.
      */
     bool m_bResizeToImage;
 };
 
 #endif