LOCueFader.h

00001 /*
00002  *
00003  * Copyright (c) 2006, Michael Swan <michaelswan@mac.com>
00004  * All rights reserved.
00005  *
00006  * Redistribution and use in source and binary forms, with or without 
00007  * modification, are permitted provided that the following conditions are met:
00008  *
00009  * 1. Redistributions of source code must retain the above copyright notice,
00010  *    this list of conditions and the following disclaimer.
00011  *
00012  * 2. Redistributions in binary form must reproduce the above copyright notice,
00013  *    this list of conditions and the following disclaimer in the documentation
00014  *    and/or other materials provided with the distribution.
00015  *
00016  * 3. Neither the name of the usbdmx.com web site nor the names of its 
00017  *    contributors may be used to endorse or promote products derived from this
00018  *    software without specific prior written permission.
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
00021  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
00022  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
00023  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
00024  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
00025  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
00026  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
00027  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
00028  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
00029  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00030  * POSSIBILITY OF SUCH DAMAGE.
00031  *
00032  *  LOCueFader.h
00033  *
00034  */
00035 
00036 
00037 #import <Cocoa/Cocoa.h>
00038 
00039 
00040 #import "LOScene.h"
00041 #import "LOLightCue.h"
00042 #import "LOChannelManager.h"
00043 
00044 
00050 @interface LOCueFader : NSObject <LOChannelProvider>
00051 {
00052         BOOL                            fading;
00053         BOOL                            upComplete;
00054         BOOL                            downComplete;
00055         int                                     upFadeSteps;
00056         int                                     downFadeSteps;
00057         int                                     fadeStep;
00058         int                                     faderNumber;
00059         float                           targetCue;
00060         unsigned char           *increasingLevels;
00061         unsigned char           *decreasingLevels;
00062         LOScene                         *cachedScene;
00063         LOChannelManager        *channelManager;
00064         NSTimer                         *fadeTimer;
00065 
00066 }
00067 
00073 - (id) initWithFaderNumber:(int)aNumber;
00074 
00081 - (void)fadeFromScene:(LOScene *)aScene toCue:(LOLightCue *)aCue;
00082 
00088 - (void) holdFade;
00089 
00095 - (void) resumeFade;
00096 
00097 - (int)valueForChannel:(unsigned)aChannel;
00098 
00099 @end