111 lines
3.3 KiB
Objective-C
111 lines
3.3 KiB
Objective-C
//
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// StringAdditions.m
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// Transmission
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//
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// Created by Mitchell Livingston on 1/16/06.
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// Copyright 2006 __MyCompanyName__. All rights reserved.
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//
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#import "StringAdditions.h"
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#import "Utils.h"
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@implementation NSString (StringAdditions)
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+ (NSString *) stringForFileSize: (uint64_t) size
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{
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if (size < 1024)
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return [NSString stringWithFormat: @"%lld bytes", size];
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else if (size < 1048576)
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return [NSString stringWithFormat: @"%lld.%lld KB",
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size / 1024, ( size % 1024 ) / 103];
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else if (size < 1073741824)
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return [NSString stringWithFormat: @"%lld.%lld MB",
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size / 1048576, ( size % 1048576 ) / 104858];
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else
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return [NSString stringWithFormat: @"%lld.%lld GB",
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size / 1073741824, ( size % 1073741824 ) / 107374183];
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}
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+ (NSString *) stringForSpeed: (float) speed
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{
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return [[self stringForSpeedAbbrev: speed]
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stringByAppendingString: @"B/s"];
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}
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+ (NSString *) stringForSpeedAbbrev: (float) speed
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{
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if (speed < 1000) /* 0.0 K to 999.9 K */
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return [NSString stringWithFormat: @"%.1f K", speed];
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else if (speed < 102400) /* 0.98 M to 99.99 M */
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return [NSString stringWithFormat: @"%.2f M", speed / 1024];
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else if (speed < 1024000) /* 100.0 M to 999.9 M */
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return [NSString stringWithFormat: @"%.1f M", speed / 1024];
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else /* Insane speeds */
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return [NSString stringWithFormat: @"%.2f G", speed / 1048576];
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}
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+ (NSString *) stringForRatio: (uint64_t) down upload: (uint64_t) up
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{
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if( !down && !up )
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return @"N/A";
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if( !down )
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return [NSString stringWithUTF8String: "\xE2\x88\x9E"];
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float ratio = (float) up / (float) down;
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if( ratio < 10.0 )
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return [NSString stringWithFormat: @"%.2f", ratio];
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else if( ratio < 100.0 )
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return [NSString stringWithFormat: @"%.1f", ratio];
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else
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return [NSString stringWithFormat: @"%.0f", ratio];
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}
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- (NSString *) stringFittingInWidth: (float) width
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withAttributes: (NSDictionary *) attributes
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{
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int i;
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float realWidth = [self sizeWithAttributes: attributes].width;
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/* The whole string fits */
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if( realWidth <= width )
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return self;
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/* Width is too small */
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if ( [NS_ELLIPSIS sizeWithAttributes: attributes].width > width )
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return @"";
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/* Don't worry about ellipsis until the end */
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width -= [NS_ELLIPSIS sizeWithAttributes: attributes].width;
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/* Approximate how many characters we'll need to drop... */
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i = [self length] * (width / realWidth);
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/* ... then refine it */
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NSString * newString = [self substringToIndex: i];
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realWidth = [newString sizeWithAttributes: attributes].width;
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if( realWidth < width )
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{
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NSString * smallerString;
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do
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{
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smallerString = newString;
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newString = [self substringToIndex: ++i];
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} while ([newString sizeWithAttributes: attributes].width <= width);
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newString = smallerString;
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}
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else if( realWidth > width )
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{
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do
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{
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newString = [self substringToIndex: --i];
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} while ([newString sizeWithAttributes: attributes].width > width);
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}
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else;
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return [newString stringByAppendingString: NS_ELLIPSIS];
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}
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@end
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