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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 "imlibimage.h"
  17 #include <qscrollview.h>
  18
  19 class QPopupMenu;
  20 class QImage;
  21 class QPixmap;
  22 class QColor;
  23 class QCursor;
  24
  25 namespace QComicBook
  26 {
  27         enum Size { Original, FitWidth, FitHeight, WholePage, BestFit };
  28         //enum Scaling { Smooth, Fast };
  29         enum Rotation { None, Left, Right };
  30
  31         class ImlibImage;
  32
  33         class ComicImageView: public QScrollView
  34         {
  35                 Q_OBJECT
  36
  37                 private:
  38                         QPopupMenu *context_menu;
  39                         ImlibImageList orgimage[2];
  40                         Size isize;
  41                         //Scaling iscaling;
  42                         int iangle; //rotation angle, 0..3, multipled by 90
  43                         int spdx, spdy; //scroll speed
  44                         int xoff, yoff;
  45                         int lx, ly; //last mouse position when tracking mouse moves
  46                         int wheelupcnt, wheeldowncnt;
  47                         QCursor *smallcursor;
  48                         static const int EXTRA_WHEEL_SPIN; //number of extra wheel spins to flip the page
  49
  50                         // test - na potrzeby imlib
  51                         double asp;
  52                         double w_asp;
  53                         double h_asp;
  54
  55                 signals:
  56                         void bottomReached();
  57                         void topReached();
  58                         void doubleClick();
  59
  60                 protected:
  61                         void resizeEvent(QResizeEvent *e);
  62                         void updateImageSize();
  63                         virtual void contentsContextMenuEvent(QContextMenuEvent *e);
  64                         virtual void contentsWheelEvent(QWheelEvent *e);
  65                         virtual void contentsMouseMoveEvent(QMouseEvent *e);
  66                         virtual void contentsMousePressEvent(QMouseEvent *e);
  67                         virtual void contentsMouseDoubleClickEvent(QMouseEvent *e);
  68                         virtual void contentsMouseReleaseEvent(QMouseEvent *e);
  69                         virtual void drawContents(QPainter *p, int clipx, int clipy, int clipw, int cliph);
  70
  71                 public slots:
  72                         void setImage(ImlibImage *img, bool preserveangle=false);
  73                         void setImage(ImlibImageList &imglist, bool preserveangle=false);
  74                         void setImage(ImlibImage *img1, ImlibImage *img2, bool preserveangle=false);
  75                         void setImage(ImlibImageList &imglist1, ImlibImageList &imglist2, bool preserveangle=false);
  76                         //void setScaling(Scaling s);
  77                         void setRotation(Rotation r);
  78                         void setSize(Size s);
  79                         void setSizeOriginal();
  80                         void setSizeFitWidth();
  81                         void setSizeFitHeight();
  82                         void setSizeWholePage();
  83                         void setSizeBestFit();
  84                         void scrollToTop();
  85                         void scrollToBottom();
  86                         void scrollRight();
  87                         void scrollLeft();
  88                         void scrollRightFast();
  89                         void scrollLeftFast();
  90                         void scrollUp();
  91                         void scrollDown();
  92                         void scrollUpFast();
  93                         void scrollDownFast();
  94                         void rotateRight();
  95                         void rotateLeft();
  96                         void resetRotation();
  97                         void jumpUp();
  98                         void jumpDown();
  99                         void clear();
 100                         void enableScrollbars(bool f);
 101                         void setBackground(const QColor &color);
 102                         void setSmallCursor(bool f);
 103
 104                 public:
 105                         ComicImageView(QWidget *parent, Size size=Original, const QColor &color=Qt::black);
 106                         ~ComicImageView();
 107                         bool onBottom();
 108                         bool onTop();
 109                         QPopupMenu *contextMenu() const;
 110                         Size getSize() const;
 111                         int imageWidth() const;
 112         };
 113 }
 114
 115 #endif
 116