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/*
Copyright (c) 1998, 1999, 2000, 2001, 2003, 2004 Benhur Stein
This file is part of Paj.
Paj is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
Paj is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
for more details.
You should have received a copy of the GNU Lesser General Public License
along with Paj; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#include "NSString+Additions.h"
@implementation NSString (Additions)
+ (NSString *)stringWithCharacter:(unichar)c
{
return [NSString stringWithCharacters:&c length:1];
}
+ (NSString *)stringWithFormattedNumber:(double)n
{
static char *p = "TGMk m\xb5np";
int i = 4;
BOOL neg = (n < 0);
if (neg)
n = -n;
if (n < 1e-12)
return neg ? @"-0" : @"0";
if (n > 999e12)
return neg ? @"-Inf" : @"Inf";
while (n < 1) {
n *= 1000;
i++;
}
while (n > 1000) {
n /= 1000;
i--;
}
if (n < 10)
return [NSString stringWithFormat:@"%s%.1f%c", neg?"-":"", n, p[i]];
return [NSString stringWithFormat:@"%s%d%c", neg?"-":"", (int)n, p[i]];
}
#define UNICHAR_BUFF_SIZE 1024
// Adapted from Mike Ferris' TextExtras
- (NSRange)rangeForLineNumber:(unsigned)lineNumber
{
NSUInteger curLineNum = 1;
NSUInteger startCharIndex = NSNotFound;
unichar buff[UNICHAR_BUFF_SIZE];
unsigned i = 0, buffCount = 0;
NSRange searchRange = NSMakeRange(0, [self length]);
// Returned range should start at beginning of lineNumber
// and end at beginning of lineNumber+1.
if (lineNumber < 1) lineNumber = 1;
if (lineNumber == 1) startCharIndex = 0;
while (searchRange.length > 0) {
buffCount = MIN(searchRange.length, UNICHAR_BUFF_SIZE);
[self getCharacters:buff
range:NSMakeRange(searchRange.location, buffCount)];
// We're counting paragraph separators here. We want to notice when
// we hit lineNum and remember where the starting char index is. We
// also want to notice when we reach lineNum+1 and return the result.
for (i=0; i < buffCount; i++) {
if (buff[i] == '\n') {
curLineNum++;
if (curLineNum == lineNumber)
startCharIndex = searchRange.location + i + 1;
else if (curLineNum == (lineNumber + 1)) {
unsigned charIndex = (searchRange.location + i + 1);
return NSMakeRange(startCharIndex,
charIndex - startCharIndex);
}
}
}
// Skip the search range past the part we just did.
searchRange.location += buffCount;
searchRange.length -= buffCount;
}
// If we're here, we didn't find the end of the line number range.
// searchRange.location == [string length] at this point.
if (startCharIndex == NSNotFound) {
// We didn't find the start of the line number range either, so return {EOT, 0}.
return NSMakeRange(searchRange.location, 0);
} else {
// We found the start, so return from there to the end of the text.
return NSMakeRange(startCharIndex, searchRange.location - startCharIndex);
}
}
// Adapted from Mike Ferris' TextExtras
- (unsigned)lineNumberAtIndex:(unsigned)index
{
unsigned lineNumber = 1;
unichar buff[1024];
unsigned i, buffCount;
NSRange searchRange = NSMakeRange(0, MIN(index, [self length]));
while (searchRange.length > 0) {
buffCount = MIN(searchRange.length, UNICHAR_BUFF_SIZE);
[self getCharacters:buff
range:NSMakeRange(searchRange.location, buffCount)];
for (i=0; i < buffCount; i++) {
if (buff[i] == '\n')
lineNumber++;
};
// Skip the search range past the part we just did.
searchRange.location += buffCount;
searchRange.length -= buffCount;
};
return lineNumber;
}
- (NSRange)rangeValue
{
return NSRangeFromString(self);
}
+ (NSString *)stringWithRange:(NSRange)range
{
return NSStringFromRange(range);
}
- (NSString *)stringValue
{
return self;
}
@end
@implementation NSString (PajeNSStringPositionDrawing)
- (void)drawAtLTPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
[self drawAtPoint:aPoint withAttributes:attributes];
}
- (void)drawAtLCPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x, aPoint.y - size.height/2);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtLBPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x, aPoint.y - size.height);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtCTPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x - size.width/2, aPoint.y);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtCCPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x - size.width/2, aPoint.y - size.height/2);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtCBPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x - size.width/2, aPoint.y - size.height);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtRTPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x - size.width, aPoint.y);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtRCPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x - size.width, aPoint.y - size.height/2);
[self drawAtPoint:newPoint withAttributes:attributes];
}
- (void)drawAtRBPoint:(NSPoint)aPoint withAttributes:(NSDictionary *)attributes
{
NSSize size = [self sizeWithAttributes:attributes];
NSPoint newPoint = NSMakePoint(aPoint.x - size.width, aPoint.y - size.height);
[self drawAtPoint:newPoint withAttributes:attributes];
}
@end
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