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TTGlobal.m
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TTGlobal.m
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#import "Three20/TTGlobal.h"
///////////////////////////////////////////////////////////////////////////////////////////////////
static int gNetworkTaskCount = 0;
///////////////////////////////////////////////////////////////////////////////////////////////////
static const void* TTRetainNoOp(CFAllocatorRef allocator, const void *value) { return value; }
static void TTReleaseNoOp(CFAllocatorRef allocator, const void *value) { }
NSMutableArray* TTCreateNonRetainingArray() {
CFArrayCallBacks callbacks = kCFTypeArrayCallBacks;
callbacks.retain = TTRetainNoOp;
callbacks.release = TTReleaseNoOp;
return (NSMutableArray*)CFArrayCreateMutable(nil, 0, &callbacks);
}
NSMutableDictionary* TTCreateNonRetainingDictionary() {
CFDictionaryKeyCallBacks keyCallbacks = kCFTypeDictionaryKeyCallBacks;
CFDictionaryValueCallBacks callbacks = kCFTypeDictionaryValueCallBacks;
callbacks.retain = TTRetainNoOp;
callbacks.release = TTReleaseNoOp;
return (NSMutableDictionary*)CFDictionaryCreateMutable(nil, 0, &keyCallbacks, &callbacks);
}
BOOL TTIsEmptyArray(NSObject* object) {
return [object isKindOfClass:[NSArray class]] && ![(NSArray*)object count];
}
BOOL TTIsEmptyString(NSObject* object) {
return [object isKindOfClass:[NSString class]] && ![(NSString*)object length];
}
UIInterfaceOrientation TTDeviceOrientation() {
UIInterfaceOrientation orient = [UIDevice currentDevice].orientation;
if (!orient) {
return UIInterfaceOrientationPortrait;
} else {
return orient;
}
}
CGRect TTScreenBounds() {
CGRect bounds = [UIScreen mainScreen].bounds;
if (UIDeviceOrientationIsLandscape(TTDeviceOrientation())) {
CGFloat width = bounds.size.width;
bounds.size.width = bounds.size.height;
bounds.size.height = width;
}
return bounds;
}
CGRect TTApplicationFrame() {
CGRect frame = [UIScreen mainScreen].applicationFrame;
return CGRectMake(0, 0, frame.size.width, frame.size.height);
}
CGRect TTNavigationFrame() {
CGRect frame = [UIScreen mainScreen].applicationFrame;
return CGRectMake(0, 0, frame.size.width, frame.size.height - TOOLBAR_HEIGHT);
}
CGRect TTToolbarNavigationFrame() {
CGRect frame = [UIScreen mainScreen].applicationFrame;
return CGRectMake(0, 0, frame.size.width, frame.size.height - TOOLBAR_HEIGHT*2);
}
CGRect TTRectContract(CGRect rect, CGFloat dx, CGFloat dy) {
return CGRectMake(rect.origin.x, rect.origin.y, rect.size.width - dx, rect.size.height - dy);
}
CGRect TTRectInset(CGRect rect, UIEdgeInsets insets) {
return CGRectMake(rect.origin.x + insets.left, rect.origin.y + insets.top,
rect.size.width - (insets.left + insets.right),
rect.size.height - (insets.top + insets.bottom));
}
void TTNetworkRequestStarted() {
if (gNetworkTaskCount++ == 0) {
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
}
}
void TTNetworkRequestStopped() {
if (--gNetworkTaskCount == 0) {
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
}
float TTOSVersion() {
return [[[UIDevice currentDevice] systemVersion] floatValue];
}
BOOL TTOSVersionIsAtLeast(float version) {
#ifdef __IPHONE_3_0
return 3.0 >= version;
#endif
#ifdef __IPHONE_2_2
return 2.2 >= version;
#endif
#ifdef __IPHONE_2_1
return 2.1 >= version;
#endif
#ifdef __IPHONE_2_0
return 2.0 >= version;
#endif
return NO;
}
NSLocale* TTCurrentLocale() {
NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
NSArray* languages = [defaults objectForKey:@"AppleLanguages"];
if (languages.count > 0) {
NSString *currentLanguage = [languages objectAtIndex:0];
return [[[NSLocale alloc] initWithLocaleIdentifier:currentLanguage] autorelease];
} else {
return [NSLocale currentLocale];
}
}
NSString* TTLocalizedString(NSString* key, NSString* comment) {
static NSBundle* bundle = nil;
if (!bundle) {
NSString* path = [[[NSBundle mainBundle] resourcePath]
stringByAppendingPathComponent:@"Three20.bundle"];
bundle = [[NSBundle bundleWithPath:path] retain];
}
return [bundle localizedStringForKey:key value:key table:nil];
}
BOOL TTIsBundleURL(NSString* url) {
if (url.length >= 9) {
return [url rangeOfString:@"bundle://" options:0 range:NSMakeRange(0,9)].location == 0;
} else {
return NO;
}
}
BOOL TTIsDocumentsURL(NSString* url) {
if (url.length >= 12) {
return [url rangeOfString:@"documents://" options:0 range:NSMakeRange(0,12)].location == 0;
} else {
return NO;
}
}
NSString* TTPathForBundleResource(NSString* relativePath) {
NSString* resourcePath = [[NSBundle mainBundle] resourcePath];
return [resourcePath stringByAppendingPathComponent:relativePath];
}
NSString* TTPathForDocumentsResource(NSString* relativePath) {
static NSString* documentsPath = nil;
if (!documentsPath) {
NSArray* dirs = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
documentsPath = [[dirs objectAtIndex:0] retain];
}
return [documentsPath stringByAppendingPathComponent:relativePath];
}