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/*
* status.h: Status monitoring
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: status.h 2.0 2008/02/16 15:00:33 kls Exp $
*/
#ifndef __STATUS_H
#define __STATUS_H
#include "config.h"
#include "device.h"
#include "player.h"
#include "tools.h"
enum eTimerChange { tcMod, tcAdd, tcDel };
class cTimer;
class cStatus : public cListObject {
private:
static cList<cStatus> statusMonitors;
protected:
// These functions can be implemented by derived classes to receive status information:
virtual void TimerChange(const cTimer *Timer, eTimerChange Change) {}
// Indicates a change in the timer settings.
// If Change is tcAdd or tcDel, Timer points to the timer that has
// been added or will be deleted, respectively. In case of tcMod,
// Timer is NULL; this indicates that some timer has been changed.
// Note that tcAdd and tcDel are always also followed by a tcMod.
virtual void ChannelSwitch(const cDevice *Device, int ChannelNumber) {}
// Indicates a channel switch on the given DVB device.
// If ChannelNumber is 0, this is before the channel is being switched,
// otherwise ChannelNumber is the number of the channel that has been switched to.
virtual void Recording(const cDevice *Device, const char *Name, const char *FileName, bool On) {}
// The given DVB device has started (On = true) or stopped (On = false) recording Name.
// Name is the name of the recording, without any directory path. The full file name
// of the recording is given in FileName, which may be NULL in case there is no
// actual file involved. If On is false, Name may be NULL.
virtual void Replaying(const cControl *Control, const char *Name, const char *FileName, bool On) {}
// The given player control has started (On = true) or stopped (On = false) replaying Name.
// Name is the name of the recording, without any directory path. In case of a player that can't provide
// a name, Name can be a string that identifies the player type (like, e.g., "DVD").
// The full file name of the recording is given in FileName, which may be NULL in case there is no
// actual file involved. If On is false, Name may be NULL.
virtual void SetVolume(int Volume, bool Absolute) {}
// The volume has been set to the given value, either
// absolutely or relative to the current volume.
virtual void SetAudioTrack(int Index, const char * const *Tracks) {}
// The audio track has been set to the one given by Index, which
// points into the Tracks array of strings. Tracks is NULL terminated.
virtual void SetAudioChannel(int AudioChannel) {}
// The audio channel has been set to the given value.
// 0=stereo, 1=left, 2=right, -1=no information available.
virtual void SetSubtitleTrack(int Index, const char * const *Tracks) {}
// The subtitle track has been set to the one given by Index, which
// points into the Tracks array of strings. Tracks is NULL terminated.
virtual void OsdClear(void) {}
// The OSD has been cleared.
virtual void OsdTitle(const char *Title) {}
// Title has been displayed in the title line of the menu.
virtual void OsdStatusMessage(const char *Message) {}
// Message has been displayed in the status line of the menu.
// If Message is NULL, the status line has been cleared.
virtual void OsdHelpKeys(const char *Red, const char *Green, const char *Yellow, const char *Blue) {}
// The help keys have been set to the given values (may be NULL).
virtual void OsdItem(const char *Text, int Index) {}
// The OSD displays the given single line Text as menu item at Index.
virtual void OsdCurrentItem(const char *Text) {}
// The OSD displays the given single line Text as the current menu item.
virtual void OsdTextItem(const char *Text, bool Scroll) {}
// The OSD displays the given multi line text. If Text points to an
// actual string, that text shall be displayed and Scroll has no
// meaning. If Text is NULL, Scroll defines whether the previously
// received text shall be scrolled up (true) or down (false) and
// the text shall be redisplayed with the new offset.
virtual void OsdChannel(const char *Text) {}
// The OSD displays the single line Text with the current channel information.
virtual void OsdProgramme(time_t PresentTime, const char *PresentTitle, const char *PresentSubtitle, time_t FollowingTime, const char *FollowingTitle, const char *FollowingSubtitle) {}
// The OSD displays the given programme information.
public:
cStatus(void);
virtual ~cStatus();
// These functions are called whenever the related status information changes:
static void MsgTimerChange(const cTimer *Timer, eTimerChange Change);
static void MsgChannelSwitch(const cDevice *Device, int ChannelNumber);
static void MsgRecording(const cDevice *Device, const char *Name, const char *FileName, bool On);
static void MsgReplaying(const cControl *Control, const char *Name, const char *FileName, bool On);
static void MsgSetVolume(int Volume, bool Absolute);
static void MsgSetAudioTrack(int Index, const char * const *Tracks);
static void MsgSetAudioChannel(int AudioChannel);
static void MsgSetSubtitleTrack(int Index, const char * const *Tracks);
static void MsgOsdClear(void);
static void MsgOsdTitle(const char *Title);
static void MsgOsdStatusMessage(const char *Message);
static void MsgOsdHelpKeys(const char *Red, const char *Green, const char *Yellow, const char *Blue);
static void MsgOsdItem(const char *Text, int Index);
static void MsgOsdCurrentItem(const char *Text);
static void MsgOsdTextItem(const char *Text, bool Scroll = false);
static void MsgOsdChannel(const char *Text);
static void MsgOsdProgramme(time_t PresentTime, const char *PresentTitle, const char *PresentSubtitle, time_t FollowingTime, const char *FollowingTitle, const char *FollowingSubtitle);
};
#endif //__STATUS_H
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