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//
// GTMNSAnimation+Duration.m
//
// Copyright 2009 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMNSAnimation+Duration.h"
const NSUInteger kGTMLeftMouseDownAndKeyDownMask
= NSLeftMouseDownMask | NSKeyDownMask;
NSTimeInterval GTMModifyDurationBasedOnCurrentState(NSTimeInterval duration,
NSUInteger eventMask) {
NSEvent *event = [NSApp currentEvent];
if (eventMask & NSEventMaskFromType([event type])) {
NSUInteger modifiers = [event modifierFlags];
if (!(modifiers & (NSAlternateKeyMask |
NSCommandKeyMask))) {
if (modifiers & NSShiftKeyMask) {
duration *= 5.0;
}
// These are additive, so shift+control returns 10 * duration.
if (modifiers & NSControlKeyMask) {
duration *= 2.0;
}
}
}
return duration;
}
@implementation NSAnimation (GTMNSAnimationDurationAdditions)
- (id)gtm_initWithDuration:(NSTimeInterval)duration
eventMask:(NSUInteger)eventMask
animationCurve:(NSAnimationCurve)animationCurve {
return [self initWithDuration:GTMModifyDurationBasedOnCurrentState(duration,
eventMask)
animationCurve:animationCurve];
}
- (void)gtm_setDuration:(NSTimeInterval)duration
eventMask:(NSUInteger)eventMask {
[self setDuration:GTMModifyDurationBasedOnCurrentState(duration,
eventMask)];
}
@end
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
@implementation NSAnimationContext (GTMNSAnimationDurationAdditions)
- (void)gtm_setDuration:(NSTimeInterval)duration
eventMask:(NSUInteger)eventMask {
[self setDuration:GTMModifyDurationBasedOnCurrentState(duration,
eventMask)];
}
@end
@implementation CAAnimation (GTMCAAnimationDurationAdditions)
- (void)gtm_setDuration:(CFTimeInterval)duration
eventMask:(NSUInteger)eventMask {
[self setDuration:GTMModifyDurationBasedOnCurrentState(duration,
eventMask)];
}
@end
#endif // MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
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