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103 lines
3.0 KiB
Plaintext
103 lines
3.0 KiB
Plaintext
/*
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* CAMediaTimingFunction.j
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* AppKit
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*
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* Created by Francisco Tolmasky.
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* Copyright 2008, 280 North, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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@import <Foundation/CPObject.j>
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@import <Foundation/CPDictionary.j>
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@import <Foundation/CPString.j>
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kCAMediaTimingFunctionLinear = @"kCAMediaTimingFunctionLinear";
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kCAMediaTimingFunctionEaseIn = @"kCAMediaTimingFunctionEaseIn";
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kCAMediaTimingFunctionEaseOut = @"kCAMediaTimingFunctionEaseOut";
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kCAMediaTimingFunctionEaseInEaseOut = @"kCAMediaTimingFunctionEaseInEaseOut";
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var CAMediaNamedTimingFunctions = nil;
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@implementation CAMediaTimingFunction : CPObject
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{
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float _c1x;
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float _c1y;
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float _c2x;
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float _c2y;
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}
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+ (id)functionWithName:(CPString)aName
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{
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if (!CAMediaNamedTimingFunctions)
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{
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CAMediaNamedTimingFunctions = @{};
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[CAMediaNamedTimingFunctions setObject:[CAMediaTimingFunction functionWithControlPoints:0.0 :0.0 :1.0 :1.0] forKey:kCAMediaTimingFunctionLinear];
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[CAMediaNamedTimingFunctions setObject:[CAMediaTimingFunction functionWithControlPoints:0.42 :0.0 :1.0 :1.0] forKey:kCAMediaTimingFunctionEaseIn];
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[CAMediaNamedTimingFunctions setObject:[CAMediaTimingFunction functionWithControlPoints:0.0 :0.0 :0.58 :1.0] forKey:kCAMediaTimingFunctionEaseOut];
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[CAMediaNamedTimingFunctions setObject:[CAMediaTimingFunction functionWithControlPoints:0.42 :0.0 :0.58 :1.0] forKey:kCAMediaTimingFunctionEaseInEaseOut];
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}
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return [CAMediaNamedTimingFunctions objectForKey:aName];
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}
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+ (id)functionWithControlPoints:(float)c1x :(float)c1y :(float)c2x :(float)c2y
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{
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return [[self alloc] initWithControlPoints:c1x :c1y :c2x :c2y];
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}
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- (id)initWithControlPoints:(float)c1x :(float)c1y :(float)c2x :(float)c2y
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{
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self = [super init];
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if (self)
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{
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_c1x = c1x;
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_c1y = c1y;
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_c2x = c2x;
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_c2y = c2y;
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}
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return self;
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}
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- (void)getControlPointAtIndex:(CPUInteger)anIndex values:(float/*[2]*/)reference
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{
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if (anIndex == 0)
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{
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reference[0] = 0;
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reference[1] = 0;
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}
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else if (anIndex == 1)
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{
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reference[0] = _c1x;
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reference[1] = _c1y;
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}
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else if (anIndex == 2)
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{
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reference[0] = _c2x;
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reference[1] = _c2y;
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}
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else
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{
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reference[0] = 1.0;
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reference[1] = 1.0;
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}
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}
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@end
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