Revert [619]

macosx/StringAdditions.m

@@ -0,0 +1,160 @@
+/******************************************************************************
+ * $Id$
+ *
+ * Copyright (c) 2005-2006 Transmission authors and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *****************************************************************************/
+
+#import "StringAdditions.h"
+
+@implementation NSString (StringAdditions)
+
++ (NSString *) ellipsis
+{
+	return [NSString stringWithUTF8String: "\xE2\x80\xA6"];
+}
+
+- (NSString *) stringByAppendingEllipsis
+{
+	return [self stringByAppendingString: [NSString ellipsis]];
+}
+
++ (NSString *) stringWithInt: (int) value
+{
+    return [NSString stringWithFormat: @"%d", value];
+}
+
++ (NSString *) stringForFileSize: (uint64_t) size
+{
+    if (size < 1024)
+        return [NSString stringWithFormat: @"%lld bytes", size];
+
+    float convertedSize = (float) size;
+    NSString * unit;
+    if (size < 1048576)
+    {
+        convertedSize /= 1024.0;
+        unit = @" KB";
+    }
+    else if (size < 1073741824)
+    {
+        convertedSize /= 1048576.0;
+        unit = @" MB";
+    }
+    else
+    {
+        convertedSize /= 1073741824.0;
+        unit = @" GB";
+    }
+
+    NSString * sizeString;
+    //attempt to have values with 3 digits
+    if (convertedSize < 10.0)
+        sizeString = [NSString stringWithFormat: @"%.2f", convertedSize];
+    else if (convertedSize < 100.0)
+        sizeString = [NSString stringWithFormat: @"%.1f", convertedSize];
+    else
+        sizeString = [NSString stringWithFormat: @"%.0f", convertedSize];
+
+    return [sizeString stringByAppendingString: unit];
+}
+
++ (NSString *) stringForSpeed: (float) speed
+{
+    return [[self stringForSpeedAbbrev: speed] stringByAppendingString: @"B/s"];
+}
+
++ (NSString *) stringForSpeedAbbrev: (float) speed
+{
+    if (speed < 1000.0) //0.0 K to 999.9 K
+        return [NSString stringWithFormat: @"%.1f K", speed];
+    else if (speed < 102400.0) //0.98 M to 99.99 M
+        return [NSString stringWithFormat: @"%.2f M", speed / 1024.0];
+    else if (speed < 1024000.0) //100.0 M to 999.9 M
+        return [NSString stringWithFormat: @"%.1f M", speed / 1024.0];
+    else //insane speeds
+        return [NSString stringWithFormat: @"%.2f G", speed / 1048576.0];
+}
+
++ (NSString *) stringForRatioWithDownload: (uint64_t) down upload: (uint64_t) up
+{
+    if (down == 0)
+        return up == 0 ? @"N/A" : [NSString stringWithUTF8String: "\xE2\x88\x9E"];
+
+    float ratio = (float) up / (float) down;
+    if (ratio < 10.0)
+        return [NSString stringWithFormat: @"%.2f", ratio];
+    else if (ratio < 100.0)
+        return [NSString stringWithFormat: @"%.1f", ratio];
+    else
+        return [NSString stringWithFormat: @"%.0f", ratio];
+}
+
+- (NSAttributedString *) attributedStringFittingInWidth: (float) width
+                                attributes: (NSDictionary *) attributes
+{
+    int i;
+    float realWidth = [self sizeWithAttributes: attributes].width;
+    
+    /* The whole string fits */
+    if( realWidth <= width )
+        return [[[NSAttributedString alloc] initWithString: self attributes: attributes] autorelease];
+    
+    float ellipsisWidth = [[NSString ellipsis] sizeWithAttributes: attributes].width;
+    
+    /* Width is too small */
+    if ( ellipsisWidth > width )
+        return [[[NSAttributedString alloc] initWithString: @"" attributes: attributes] autorelease];
+
+    /* Don't worry about ellipsis until the end */
+    width -= ellipsisWidth;
+
+    /* Approximate how many characters we'll need to drop... */
+    i = [self length] * (width / realWidth);
+
+    /* ... then refine it */
+    NSString * newString = [self substringToIndex: i];
+    realWidth = [newString sizeWithAttributes: attributes].width;
+
+    if( realWidth < width )
+    {
+        NSString * smallerString;
+        do
+        {
+            smallerString = newString;
+            newString = [self substringToIndex: ++i];
+        } while ([newString sizeWithAttributes: attributes].width <= width);
+        
+        newString = smallerString;
+    }
+    else if( realWidth > width )
+    {
+        do
+        {
+            newString = [self substringToIndex: --i];
+        } while ([newString sizeWithAttributes: attributes].width > width);
+    }
+    else;
+
+    return [[[NSAttributedString alloc] initWithString: [newString stringByAppendingEllipsis]
+                                        attributes: attributes] autorelease];
+}
+
+@end