include/lib/picviewer/pictureviewer.h

   1 /*
   2  * $Id: pictureviewer.h,v 1.21 2007/02/20 21:57:04 ghostrider Exp $
   3  *
   4  * (C) 2005 by digi_casi <digi_casi@tuxbox.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  */
  21
  22 #ifndef __pictureviewer_h
  23 #define __pictureviewer_h
  24
  25 #include <lib/base/estring.h>
  26 #include <lib/gui/ewidget.h>
  27 #include <src/enigma_main.h>
  28
  29 #define FH_ERROR_OK 0
  30 #define FH_ERROR_FILE 1         /* read/access error */
  31 #define FH_ERROR_FORMAT 2       /* file format error */
  32 #define FH_ERROR_MALLOC 3       /* error during malloc */
  33
  34 #define dbout(fmt, args...) {struct timeval tv; gettimeofday(&tv, NULL); \
  35         printf( "PV[%ld|%02ld] " fmt, (long)tv.tv_sec, (long)tv.tv_usec / 10000, ## args);}
  36
  37 class ePictureViewer: public eWidget
  38 {
  39         eTimer slideshowTimer;
  40         std::list<eString> slideshowList;
  41         std::list<eString>::iterator myIt;
  42         struct cformathandler
  43         {
  44                 struct cformathandler *next;
  45                 int (*get_size)(const char *, int *, int *, int, int);
  46                 int (*get_pic)(const char *, unsigned char *, int, int);
  47                 int (*id_pic)(const char *);
  48         };
  49         typedef  struct cformathandler CFormathandler;
  50         eString filename;
  51         int eventHandler(const eWidgetEvent &evt);
  52         void listDirectory(eString, int);
  53         void nextPicture();
  54         void previousPicture();
  55         void showNameOnLCD(const eString& filename);
  56         bool DecodeImage(const std::string& name, bool unscaled = false);
  57         bool DisplayNextImage();
  58         bool showBusySign;
  59         bool switchto43;
  60         int format169;
  61 //#ifndef DISABLE_LCD
  62         eZapLCD* pLCD;
  63 //#else
  64 public:
  65         ePictureViewer(const eString &filename);
  66         ~ePictureViewer();
  67
  68         enum ScalingMode
  69         {
  70                 NONE = 0,
  71                 SIMPLE = 1,
  72                 COLOR = 2
  73         };
  74
  75         bool ShowImage(const std::string& filename, bool unscaled = false);
  76         void SetScaling(ScalingMode s) {m_scaling = s;}
  77         void SetAspectRatio(float aspect_ratio) {m_aspect = aspect_ratio;}
  78         void showBusy(int sx, int sy, int width, char r, char g, char b);
  79         void hideBusy();
  80         void Zoom(float factor);
  81         void Move(int dx, int dy);
  82         void slideshowTimeout();
  83         eString GetCurrentFile() { return *myIt; }
  84 private:
  85         CFormathandler *fh_root;
  86         ScalingMode m_scaling;
  87         float m_aspect;
  88         std::string m_NextPic_Name;
  89         unsigned char *m_NextPic_Buffer;
  90         int m_NextPic_X;
  91         int m_NextPic_Y;
  92         int m_NextPic_XPos;
  93         int m_NextPic_YPos;
  94         int m_NextPic_XPan;
  95         int m_NextPic_YPan;
  96
  97         unsigned char *m_busy_buffer;
  98         int m_busy_x;
  99         int m_busy_y;
 100         int m_busy_width;
 101         int m_busy_cpp;
 102
 103         int m_startx;
 104         int m_starty;
 105         int m_endx;
 106         int m_endy;
 107
 108         CFormathandler * fh_getsize(const char *name, int *x, int *y, int width_wanted, int height_wanted);
 109         void init_handlers(void);
 110         void add_format(int (*picsize)(const char *, int *, int *, int, int), int (*picread)(const char *, unsigned char *, int , int), int (*id)(const char *));
 111
 112         bool m_bFitScreen;
 113 };
 114 #endif