project_files/HedgewarsMobile/Classes/CommodityFunctions.m
author koda
Tue, 20 Sep 2011 23:43:52 +0200
changeset 5975 c3a8cab64fcb
parent 5486 e75f7c3c6275
child 5994 3c578f531cc1
permissions -rw-r--r--
let's use the built in events, shall we
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/*
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 * Hedgewars-iOS, a Hedgewars port for iOS devices
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 * Copyright (c) 2009-2010 Vittorio Giovara <vittorio.giovara@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program 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
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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 *
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 * File created on 08/04/2010.
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 */
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#import "CommodityFunctions.h"
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#import <sys/types.h>
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#import <sys/sysctl.h>
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#import <mach/mach.h>
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#import <mach/mach_host.h>
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#import <QuartzCore/QuartzCore.h>
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#import <AudioToolbox/AudioToolbox.h>
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#import <CommonCrypto/CommonDigest.h>
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#import <SystemConfiguration/SCNetworkReachability.h>
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#import <netinet/in.h>
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#import "PascalImports.h"
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#import "hwconsts.h"
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NSInteger inline randomPort () {
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    srandom(time(NULL));
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    NSInteger res = (random() % 64511) + 1024;
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    return (res == NETGAME_DEFAULT_PORT) ? randomPort() : res;
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}
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// by http://landonf.bikemonkey.org/code/iphone/Determining_Available_Memory.20081203.html
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void print_free_memory () {
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#ifdef DEBUG
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    mach_port_t host_port;
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    mach_msg_type_number_t host_size;
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    vm_size_t pagesize;
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    host_port = mach_host_self();
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    host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
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    host_page_size(host_port, &pagesize);
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    vm_statistics_data_t vm_stat;
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    if (host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size) != KERN_SUCCESS)
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        DLog(@"Failed to fetch vm statistics");
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    /* Stats in bytes */
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    natural_t mem_used = (vm_stat.active_count + vm_stat.inactive_count + vm_stat.wire_count) * pagesize;
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    natural_t mem_free = vm_stat.free_count * pagesize;
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    natural_t mem_total = mem_used + mem_free;
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    DLog(@"used: %u free: %u total: %u", mem_used, mem_free, mem_total);
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#endif
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}
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BOOL inline isApplePhone () {
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    return (IS_IPAD() == NO);
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}
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NSString *getModelType () {
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    size_t size;
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    // set 'oldp' parameter to NULL to get the size of the data returned so we can allocate appropriate amount of space
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    sysctlbyname("hw.machine", NULL, &size, NULL, 0);
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    char *name = (char *)malloc(sizeof(char) * size);
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    // get the platform name
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    sysctlbyname("hw.machine", name, &size, NULL, 0);
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    NSString *modelId = [NSString stringWithUTF8String:name];
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    free(name);
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    return modelId;
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}
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void playSound (NSString *snd) {
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    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"sound"] boolValue] == YES) {
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        // get the filename of the sound file:
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        NSString *path = [NSString stringWithFormat:@"%@/%@.wav",[[NSBundle mainBundle] resourcePath],snd];
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        // declare a system sound id and get a URL for the sound file
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        SystemSoundID soundID;
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        NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];
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        // use audio sevices to create and play the sound
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        AudioServicesCreateSystemSoundID((CFURLRef)filePath, &soundID);
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        AudioServicesPlaySystemSound(soundID);
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    }
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}
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NSArray *getAvailableColors (void) {
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    // by default colors are ARGB but we do computation over RGB, hence we have to "& 0x00FFFFFF" before processing
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    unsigned int colors[] = HW_TEAMCOLOR_ARRAY;
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    NSMutableArray *array = [[NSMutableArray alloc] init];
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    int i = 0;
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    while(colors[i] != 0)
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        [array addObject:[NSNumber numberWithUnsignedInt:(colors[i++] & 0x00FFFFFF)]];
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    NSArray *final = [NSArray arrayWithArray:array];
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    [array release];
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    return final;
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}
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UILabel *createBlueLabel (NSString *title, CGRect frame) {
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    return createLabelWithParams(title, frame, 1.5f, UICOLOR_HW_YELLOW_BODER, UICOLOR_HW_DARKBLUE);
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}
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UILabel *createLabelWithParams (NSString *title, CGRect frame, CGFloat borderWidth, UIColor *borderColor, UIColor *backgroundColor) {
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    UILabel *theLabel = [[UILabel alloc] initWithFrame:frame];
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    theLabel.backgroundColor = backgroundColor;
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    if (title != nil) {
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        theLabel.text = title;
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        theLabel.textColor = UICOLOR_HW_YELLOW_TEXT;
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        theLabel.textAlignment = UITextAlignmentCenter;
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        theLabel.font = [UIFont boldSystemFontOfSize:[UIFont labelFontSize]*80/100];
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    }
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    [theLabel.layer setBorderWidth:borderWidth];
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    [theLabel.layer setBorderColor:borderColor.CGColor];
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    [theLabel.layer setCornerRadius:8.0f];
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    [theLabel.layer setMasksToBounds:YES];
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    return theLabel;
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}
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BOOL isNetworkReachable (void) {
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    // Create zero addy
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    struct sockaddr_in zeroAddress;
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    bzero(&zeroAddress, sizeof(zeroAddress));
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    zeroAddress.sin_len = sizeof(zeroAddress);
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    zeroAddress.sin_family = AF_INET;
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    // Recover reachability flags
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    SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
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    SCNetworkReachabilityFlags flags;
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    BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
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    CFRelease(defaultRouteReachability);
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    if (!didRetrieveFlags) {
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        NSLog(@"Error. Could not recover network reachability flags");
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        return NO;
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    }
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    BOOL isReachable = flags & kSCNetworkFlagsReachable;
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    BOOL needsConnection = flags & kSCNetworkFlagsConnectionRequired;
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    BOOL nonWiFi = flags & kSCNetworkReachabilityFlagsTransientConnection;
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    NSURL *testURL = [NSURL URLWithString:@"http://www.apple.com/"];
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    NSURLRequest *testRequest = [NSURLRequest requestWithURL:testURL
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                                                 cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
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                                             timeoutInterval:20.0];
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    NSURLConnection *testConnection = [[NSURLConnection alloc] initWithRequest:testRequest delegate:nil];
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    BOOL testResult = testConnection ? YES : NO;
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    [testConnection release];
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    return ((isReachable && !needsConnection) || nonWiFi) ? testResult : NO;
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}
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// this routine checks for the PNG size without loading it in memory
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// https://github.com/steipete/PSFramework/blob/master/PSFramework%20Version%200.3/PhotoshopFramework/PSMetaDataFunctions.m
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CGSize PSPNGSizeFromMetaData (NSString *aFileName) {
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    // File Name to C String.
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    const char *fileName = [aFileName UTF8String];
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    // source file
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    FILE *infile = fopen(fileName, "rb");
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    if (infile == NULL) {
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        DLog(@"Can't open the file: %@", aFileName);
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        return CGSizeZero;
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    }
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    // Bytes Buffer.
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    unsigned char buffer[30];
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    // Grab Only First Bytes.
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    fread(buffer, 1, 30, infile);
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    // Close File.
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    fclose(infile);
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    // PNG Signature.
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    unsigned char png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
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    // Compare File signature.
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    if ((int)(memcmp(&buffer[0], &png_signature[0], 8))) {
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        DLog(@"The file (%@) is not a PNG file", aFileName);
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        return CGSizeZero;
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    }
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    // Calc Sizes. Isolate only four bytes of each size (width, height).
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    int width[4];
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    int height[4];
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    for (int d = 16; d < (16 + 4); d++) {
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        width[d-16] = buffer[d];
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        height[d-16] = buffer[d+4];
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    }
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    // Convert bytes to Long (Integer)
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    long resultWidth = (width[0] << (int)24) | (width[1] << (int)16) | (width[2] << (int)8) | width[3];
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    long resultHeight = (height[0] << (int)24) | (height[1] << (int)16) | (height[2] << (int)8) | height[3];
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    // Return Size.
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    return CGSizeMake(resultWidth,resultHeight);
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}
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@implementation NSString (extra)
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-(NSString *)MD5hash {
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    const char *cStr = [self UTF8String];
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    unsigned char result[16];
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    CC_MD5( cStr, strlen(cStr), result );
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    return [NSString stringWithFormat:
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            @"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
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            result[0], result[1], result[2], result[3], result[4], result[5],
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            result[6], result[7], result[8], result[9], result[10], result[11],
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            result[12], result[13], result[14], result[15]];
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}
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@end