MiscVolumeLight.m

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/*

MiscVolumeLight
Version 1.2
Copyright (c) 1995 by Sean Luke
Donated to the MiscKit

Permission to use, copy, modify, and distribute this material 
for any purpose and without fee, under the restrictions as noted 
in the MiscKit copyright notice, is hereby granted, provided that
the MiscKit copyright notice and this permission notice 
appear in all source copies, and that the author's name shall not
be used in advertising or publicity pertaining to this 
material without the specific, prior written permission 
of the author.  SEAN O. LUKE  MAKES NO REPRESENTATIONS ABOUT THE
ACCURACY OR SUITABILITY OF THIS MATERIAL FOR ANY PURPOSE.  
IT IS PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.

*/

#import "MiscVolumeLight.h"
#import <stdio.h>

@implementation MiscVolumeLight

- drawSelf:(const NXRect*) rects:(int) rectCount
	{
	int just_erase=0;
	float left,right;
	NXRect backgroundRect=bounds;
	
	//printf ("Displaying\n");
	
	if ([delegate respondsTo:@selector(meterWillUpdate:)])
		[delegate meterWillUpdate:self];

//	if (![window isVisible]) return self;		// no window to draw in.
	
	//printf ("Window Visible\n");
	
	//if (![window isVisible]) return NULL;		// no window to draw in.
	// the above has been turned off because when loading Resound,
	// the sound meter wouldn't display until a sound was being played
	// or recorded!
	
	
	// first to check to see if the sound lock is current
	////printf ("Meter\n");
	if (sound!=NULL)
		{
		int status=NX_SoundStopped;
		id actual_sound=NULL;			// quiets compiler complaints
		
		//printf ("Sound ain't Null\n");
		
		if ([sound isKindOf:[Sound class]]) 
			{actual_sound=sound;}
		else if ([sound isKindOf:[SoundView class]])
			{actual_sound=[sound soundBeingProcessed];}
		status=[actual_sound status];
		if (status==NX_SoundStopped||
			status==NX_SoundInitialized||
			status==NX_SoundFreed) 
		{just_erase=1;}
			
		// Then modify the meter to match the sound	
		
		else if (status==NX_SoundRecordingPaused||
				 status==NX_SoundRecording||
				 status==NX_SoundRecordingPending)
		{[self setToInput];}
		
		else if (status==NX_SoundPlayingPaused||
				 status==NX_SoundPlaying||
				 status==NX_SoundPlayingPending)
		{[self setToOutput];}
		
		if ([actual_sound channelCount]>1)
			{[self setStereo];}
		else {[self setMono];}
		}
	

	
	
	
	if (bezeled)
		{
		backgroundRect.origin.x		+=VOLUMEMETER_BACKGROUND_INSET; 
		backgroundRect.size.width	-=VOLUMEMETER_BACKGROUND_INSET*2;
		backgroundRect.origin.y		+=VOLUMEMETER_BACKGROUND_INSET; 
		backgroundRect.size.height	-=VOLUMEMETER_BACKGROUND_INSET*2;
		}
	
	if (!VOLUMEMETER_can_draw(&bounds)) return self;	// can't draw
	//printf("Big enough\n");
	if (bezeled) NXDrawGrayBezel(&bounds,NULL);

	if (running&&!just_erase)
		{
		//printf ("DRAWING!\n");
		left=0;right=0;
		
		if (input&&input_device!=NULL) 
			[input_device getPeakLeft:&left right:&right];
		
		if ((!input)&&output_device!=NULL)
			[output_device getPeakLeft:&left right:&right];
			
		if (left>1) left=1; if (right>1) right=1;
			// occasionally a NeXTSTEP bug returns values larger than 1!
		
		PSsetgray((left+right)/2.0);
		NXRectFill(&backgroundRect);
		}
	just_erase=0;
	NXPing();
	if ([delegate respondsTo:@selector(meterDidUpdate:)])
		[delegate meterDidUpdate:self];
	return self;
	}

- (const char*) getInspectorClassName
	{
	return "MiscVolumeLightInspector";
	}


@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.