155 lines
4.9 KiB
Objective-C
155 lines
4.9 KiB
Objective-C
/******************************************************************************
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* Copyright (c) 2005-2006 Transmission authors and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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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 *) stringWithInt: (int) value
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{
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return [NSString stringWithFormat: @"%d", value];
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}
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+ (NSString *) stringForFileSize: (uint64_t) size
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{
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if (size < 1024)
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{
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/* 0 to 1023 bytes */
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return [NSString stringWithFormat: @"%lld bytes", size];
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}
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NSString * unit;
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if (size < 1048576)
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{
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unit = @" KB";
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}
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else if (size < 1073741824)
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{
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unit = @" MB";
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size /= 1024;
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}
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else
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{
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unit = @" GB";
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size /= 1048576;
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}
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NSString * value;
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if (size < 10240)
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/* 1.00 to 9.99 XB */
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value = [NSString stringWithFormat: @"%lld.%02lld",
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size / 1024, ( size % 1024 ) * 100 / 1024];
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else if (size < 102400)
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/* 10.0 to 99.9 XB */
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value = [NSString stringWithFormat: @"%lld.%lld",
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size / 1024, ( size % 1024 ) * 10 / 1024];
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else
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/* 100+ XB */
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value = [NSString stringWithFormat: @"%lld", size / 1024];
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return [value stringByAppendingString: unit];
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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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