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   1 /*
   2  * This file is a part of QComicBook.
   3  *
   4  * Copyright (C) 2005-2006 Pawel Stolowski <yogin@linux.bydg.org>
   5  *
   6  * QComicBook is free software; you can redestribute it and/or modify it
   7  * under terms of GNU General Public License by Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY. See GPL for more details.
  11  */
  12
  13 #ifndef __IMGVIEW_H
  14 #define __IMGVIEW_H
  15
  16 #include <qscrollview.h>
  17
  18 class QPopupMenu;
  19 class QImage;
  20 class QPixmap;
  21 class QColor;
  22 class QCursor;
  23
  24 namespace QComicBook
  25 {
  26         enum Size { Original, FitWidth, FitHeight, WholePage, BestFit };
  27         //enum Scaling { Smooth, Fast };
  28         enum Rotation { None, Left, Right };
  29
  30         class ImlibImage;
  31
  32         class ComicImageView: public QScrollView
  33         {
  34                 Q_OBJECT
  35
  36                 private:
  37                         QPopupMenu *context_menu;
  38                         ImlibImage *orgimage[2];
  39                         Size isize;
  40                         //Scaling iscaling;
  41                         int iangle; //rotation angle, 0..3, multipled by 90
  42                         int spdx, spdy; //scroll speed
  43                         int xoff, yoff;
  44                         int lx, ly; //last mouse position when tracking mouse moves
  45                         int wheelupcnt, wheeldowncnt;
  46                         QCursor *smallcursor;
  47                         static const int EXTRA_WHEEL_SPIN; //number of extra wheel spins to flip the page
  48
  49                         // test - na potrzeby imlib
  50                         double asp;
  51                         double w_asp;
  52                         double h_asp;
  53
  54                 signals:
  55                         void bottomReached();
  56                         void topReached();
  57                         void doubleClick();
  58
  59                 protected:
  60                         void resizeEvent(QResizeEvent *e);
  61                         void updateImageSize();
  62                         virtual void contentsContextMenuEvent(QContextMenuEvent *e);
  63                         virtual void contentsWheelEvent(QWheelEvent *e);
  64                         virtual void contentsMouseMoveEvent(QMouseEvent *e);
  65                         virtual void contentsMousePressEvent(QMouseEvent *e);
  66                         virtual void contentsMouseDoubleClickEvent(QMouseEvent *e);
  67                         virtual void contentsMouseReleaseEvent(QMouseEvent *e);
  68                         virtual void drawContents(QPainter *p, int clipx, int clipy, int clipw, int cliph);
  69
  70                 public slots:
  71                         void setImage(ImlibImage *img, bool preserveangle=false);
  72                         void setImage(ImlibImage *img1, ImlibImage *img2, bool preserveangle=false);
  73                         //void setScaling(Scaling s);
  74                         void setRotation(Rotation r);
  75                         void setSize(Size s);
  76                         void setSizeOriginal();
  77                         void setSizeFitWidth();
  78                         void setSizeFitHeight();
  79                         void setSizeWholePage();
  80                         void setSizeBestFit();
  81                         void scrollToTop();
  82                         void scrollToBottom();
  83                         void scrollRight();
  84                         void scrollLeft();
  85                         void scrollRightFast();
  86                         void scrollLeftFast();
  87                         void scrollUp();
  88                         void scrollDown();
  89                         void scrollUpFast();
  90                         void scrollDownFast();
  91                         void rotateRight();
  92                         void rotateLeft();
  93                         void resetRotation();
  94                         void jumpUp();
  95                         void jumpDown();
  96                         void clear();
  97                         void enableScrollbars(bool f);
  98                         void setBackground(const QColor &color);
  99                         void setSmallCursor(bool f);
 100
 101                 public:
 102                         ComicImageView(QWidget *parent, Size size=Original, const QColor &color=Qt::black);
 103                         ~ComicImageView();
 104                         bool onBottom();
 105                         bool onTop();
 106                         QPopupMenu *contextMenu() const;
 107                         Size getSize() const;
 108                         int imageWidth() const;
 109         };
 110 }
 111
 112 #endif
 113