control-image.h

/*
 * Image plugin to VDR (C++)
 *
 * (c) 2004-2011 Andreas Brachold <vdr07 at deltab.de>
 * based on (C) 2003 Kai Tobias Burwieck <kai -at- burwieck.net>
 *
 * This code is distributed under the terms and conditions of the
 * GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
 *
 */

// --- cImageControl ---------------------------------------------------------

#ifndef ___DVB_IMAGE_CONTROL_H
#define ___DVB_IMAGE_CONTROL_H

#include <vdr/player.h>
#include <vdr/osdbase.h>

#define memberof(x) (sizeof(x)/sizeof(*x))

class cImagePlayer;    
class cImageMenuCommands;

class cImageControl
 : public cControl 
{
  /** All supported Replaymodes */
  enum ePlayMode { ePlayModeNormal, ePlayModeZoom, ePlayModeJump };
  /** All supported OSD Modes */
  enum eOSDStatusMode { eDisplayNothing, eDisplayModeOnly,
  eDisplayProgress
  };
  /** All move directions to navigate inside zoomed image */
  enum eDirection {eLeft = 1,eRight,eUp,eDown};
  
  /** Our one and only Imageplayer, don't rename it see cControl  */
  cImagePlayer            *player;
  /** Interface to Menu with Usercommands*/
  cImageMenuCommands      *m_pCmdMenu;

  /** Current playing mode (Jump <-> Normal <-> Zoom) */
  ePlayMode               m_ePlayMode;
  /** Remember the active Slideshow mode before Jump or Zoom used */
  bool                    m_bSlideShowBefore;
  /** What should on OSD visable (Nothing <-> ModeOnly <-> Progress) */
  eOSDStatusMode          m_eOSDStatusVisable;
  /** Who was OSD Interface open (Nothing <-> ModeOnly <-> Progress) */
  eOSDStatusMode          m_eOSDStatusIsOpen;
  /** View our picture in a slideshow */
  bool                    m_bSlideShowActiv; 
  /** date at image was open*/
  time_t                  m_tStarted;
  /** Last Message for Statusmonitor */
  static char*            m_szLastShowStatusMsg;
  /** Display replayprogress*/
  cSkinDisplayReplay *m_pDisplayReplay;
  /** Faked Marks for Images*/
  cMarks m_Marks;

  /** zoom factor on zoom mode */ 
  int                     m_nZoomFactor;
  /** minimum zoom factor (1... */
  int                     m_nZoomMin;
  /** maximum value move steps on zoom on width */
  int                     m_nMaxStepX;
  /** maximum value move steps on zoom on height */
  int                     m_nMaxStepY;
  /** current value move steps on zoom on width, 0 is center*/
  int m_nMoveStepX;
  /** current value move steps on zoom on height, 0 is center*/
  int m_nMoveStepY;
  /** How may pixel are outside screen after zoom, on width */
  int m_nZoomXMax;
  /** How may pixel are outside screen after zoom, on height */
  int m_nZoomYMax;
  /** real image pixel width*/
  unsigned int m_nRealImageWidth;
  /** real image pixel height*/
  unsigned int m_nRealImageHeight;
  
  char m_szZoomRotation[32];
  
  static const char* szRotation [];
  /** rotation mode */ 
  unsigned int m_nRotation;

private:  
  void ShowOSD(void);
  void HideOSD(void);
  void ShowMode(void);
  void ShowProgress(void);
  /** Send Message if changed to any statusmonitor */
  void ShowStatusMsg();
  
  void PictureZoomInitial(void);
  
  void ProcessKeyBeginJump();
  void ProcessKeyBeginZoom();
  
  /** Deliver the Status of running convert-script */
  bool IsConvertRunning() const;
  /** Deliver the current number of viewed Image */
  int ImageCurrent(void) const;
  /** Deliver the total number of viewed Image */
  int ImageTotal(void) const;
  /** Deliver the filename from the current number of viewed Image */
  const char* FileName() const;
  
  /** Check if key for pluginstop was processed*/
  eOSState ProcessKeyStopped();
  /** Toogle between all supported OSD Modes */
  void ToogleShowMode(void);
  /** Toogle between Play and Stop of the current SlideShow */
  void ToogleSlideShowActiv(void);
  
  /** Zoom inside a image*/
  void ZoomIn();
  /** Zoom outside a image*/
  void ZoomOut();
  /** Navigate inside a zoomed image */
  void MoveZoomWindow(eDirection nDirection);
  
  eOSState ProcessKeyPlayMode(eKeys nKey);
  eOSState ProcessKeyJumpMode(eKeys nKey);
  eOSState ProcessKeyZoomMode(eKeys nKey);
  eOSState ProcessKeyCommands(eKeys nKey);
#ifdef HAVE_LIBEXIF
  virtual cOsdObject *GetInfo(void);
#endif
  
  void NextImage(int Step);
  void PrevImage(int Step);
  void GotoImage(int Pict);
  void RFlipImage(void);
  void LFlipImage(void);
  void OriginalImage(bool bCached);
  void ConvertZoom();
  void ConvertJump(int Step);
  
  void IncSlideTime(void);
  void DecSlideTime(void);
  
  bool CheckAccess() const;
private:
  cImageControl(cSlideShow * pNewSlideShow);
public:
  virtual ~ cImageControl();

  static void SetSlideShow(cSlideShow * pNewSlideShow);

  virtual eOSState ProcessKey(eKeys Key);
  virtual void Hide(void);
  virtual void Show(void);

protected:  
  void SlideImage();
  void Stop(void);
};

#endif				//___DVB_IMAGE_CONTROL_H