// multi_inhert1.cpp 		By: Aiman Hanna -  (c)1993-2002 Aiman Hanna

// This program expalins multiple inheritance.
//
// Key Points: 	1) Watch for ambiguity.

#include "multi_inhert1.h"

Audio::Audio()
{
	qlty = medium;
	length = 60;
} 



char* Audio::GetQuality()
{
switch (qlty) 	{
	case low: return "low";
	case medium: return "medium";
	case high: return "high";
		}
return "unknown";
}



Video::Video()
{
	resolution = 800;
	length = 60;
}



Video_Cassette::Video_Cassette( recordingspeed rec, int res, int len, quality q )
{
	recsp = rec;
	resolution = res;
	Video::length = len;	// "length = len;" would be ambiguous
	qlty = q;	 	

}



void Video_Cassette::ShowInfo()
{
cout << " The video cassette information is as follow: " << endl;
cout << " The recording speed is: " << GetRecordingSpeed() << endl
     << " the picture resolution is: " << resolution << endl
     << " the length is: " << Video::length << endl
     << " and the quality is: " << GetQuality() << endl << endl;
}



void Video_Cassette::SetRecordingSpeed( recordingspeed rsp = sp )
{
	recsp = rsp; 	
}





char* Video_Cassette::GetRecordingSpeed()
{
	switch (recsp) 	
		{
		case sp: return "sp"; 
		case lp: return "lp"; 
		case ep: return "ep"; 
 	    }

	return "unknown";
}



Video_Clipper::Video_Clipper( int numclp, int res, quality q )
{
	numofclips = numclp;
 	resolution = res;
	qlty = q;
}




void Video_Clipper::SetNumOfClips( int numclp )
{
 	numofclips = numclp;
}




int Video_Clipper::GetNumOfClips( void )
{
 	return numofclips;
}




void Video_Clipper::ShowInfo()
{
	cout << " The video clipper information is as follow: " << endl;
	cout << " The number of video clips is: " << numofclips << endl
		 << " the picture resolution is: " << resolution << endl
		 << " and the quality is: " << GetQuality() << endl << endl;
}




Audio_CD::Audio_CD( int trk = 12, int len = 60, quality q = medium )												
{
	numtracks = trk;
	Audio::length = len;	// "length = len;" would NOT be ambiguous here
	qlty = q;	 	
}




void Audio_CD::ShowInfo()
{
cout << " The audio CD information is as follow: " << endl;
cout << " The number of tracks is: " << numtracks << endl
     << " the length is: " << Audio::length << endl
     << " and the quality is: " << GetQuality() << endl << endl;
}




void Audio_CD::SetNumTracks( int nt )
{
 	numtracks = nt;
}



int Audio_CD::GetNumTracks( )
{
 	return numtracks; 
}




void main()
{
Video_Cassette v1(ep, 1024, 90, high), v2(lp, 600, 120, low);
Audio_CD a1(20, 45, high), a2(10, 30, medium);
Video_Clipper c1;

v1.ShowInfo();
v2.ShowInfo();
a1.ShowInfo();
a2.ShowInfo();
c1.ShowInfo();

cout << " =============================================" << endl;

// Notice that both Video_Cassette objects, and Video_Clipper objects 
// can be considered as Video objects, while Audio_CD objects can NOT.
 
Video* ved_ptr[5];	// Array of 5 pointers to Video objects

ved_ptr[0] = new Video_Cassette(sp, 800, 90, high);
ved_ptr[1] = new Video_Clipper(30, 600, high);
ved_ptr[2] = new Video_Cassette(ep, 1024, 120, low);
ved_ptr[3] = new Video_Clipper(5, 400, low);
ved_ptr[4] = new Video_Cassette(lp, 600, 30, medium);


for ( int i = 0; i < 5; i++ )
{
	ved_ptr[i] ->  ShowInfo();	
}

cout << " =============================================" << endl;

// You can also do the following. Notice that all Video_Cassette objects, 
// Video_Clipper objects and Audio_CD objects can also be considered as 
// Audio objects. 

Audio* aud_ptr[4];	// Array of 4 pointers to Audio objects

aud_ptr[0] = new Video_Cassette(sp, 800, 90, high);
aud_ptr[1] = new Video_Clipper(30, 600, high);
aud_ptr[2] = new Video_Cassette(ep, 1024, 120, low);
aud_ptr[3] = new Audio_CD(20, 45, high);

for ( i = 0; i < 4; i++ )
{
	aud_ptr[i] ->  ShowInfo();	
}


}




/* The output of the program is as follow:

 The video cassette information is as follow:
 The recording speed is: ep
 the picture resolution is: 1024
 the length is: 90
 and the quality is: high

 The video cassette information is as follow:
 The recording speed is: lp
 the picture resolution is: 600
 the length is: 120
 and the quality is: low

 The audio CD information is as follow:
 The number of tracks is: 20
 the length is: 45
 and the quality is: high

 The audio CD information is as follow:
 The number of tracks is: 10
 the length is: 30
 and the quality is: medium

 The video clipper information is as follow:
 The number of video clips is: 20
 the picture resolution is: 400
 and the quality is: medium

 =============================================

 The video cassette information is as follow:
 The recording speed is: sp
 the picture resolution is: 800
 the length is: 90
 and the quality is: high

 The video clipper information is as follow:
 The number of video clips is: 30
 the picture resolution is: 600
 and the quality is: high

 The video cassette information is as follow:
 The recording speed is: ep
 the picture resolution is: 1024
 the length is: 120
 and the quality is: low

 The video clipper information is as follow:
 The number of video clips is: 5
 the picture resolution is: 400
 and the quality is: low

 The video cassette information is as follow:
 The recording speed is: lp
 the picture resolution is: 600
 the length is: 30
 and the quality is: medium



 =============================================

 The video cassette information is as follow:
 The recording speed is: sp
 the picture resolution is: 800
 the length is: 90
 and the quality is: high

 The video clipper information is as follow:
 The number of video clips is: 30
 the picture resolution is: 600
 and the quality is: high

 The video cassette information is as follow:
 The recording speed is: ep
 the picture resolution is: 1024
 the length is: 120
 and the quality is: low

 The audio CD information is as follow:
 The number of tracks is: 20
 the length is: 45
 and the quality is: high



*/