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authorBibiko <bibiko@eva.mpg.de>2011-02-02 19:26:09 +0000
committerBibiko <bibiko@eva.mpg.de>2011-02-02 19:26:09 +0000
commitd61e3346e4805c3f2aa14b378f7bedecb09f637d (patch)
tree4f7ba5efa86449609fc309fb313ba7fa095b4b47
parent59702137f06be5819f486005ab1036a8824dbe6f (diff)
downloadsequelpro-d61e3346e4805c3f2aa14b378f7bedecb09f637d.tar.gz
sequelpro-d61e3346e4805c3f2aa14b378f7bedecb09f637d.tar.bz2
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• several speed optimisations and code cleaning
-rw-r--r--Source/NoodleLineNumberView.h49
-rw-r--r--Source/NoodleLineNumberView.m483
2 files changed, 279 insertions, 253 deletions
diff --git a/Source/NoodleLineNumberView.h b/Source/NoodleLineNumberView.h
index 45f33c00..1d600720 100644
--- a/Source/NoodleLineNumberView.h
+++ b/Source/NoodleLineNumberView.h
@@ -29,37 +29,42 @@
#import <Cocoa/Cocoa.h>
-@class NoodleLineNumberMarker;
-
@interface NoodleLineNumberView : NSRulerView
{
- // Array of character indices for the beginning of each line
- NSMutableArray *lineIndices;
- NSFont *font;
- NSColor *textColor;
- NSColor *alternateTextColor;
- NSColor *backgroundColor;
- // Add support for selection by clicking/dragging
- NSUInteger dragSelectionStartLine;
-}
+ // Array of character indices for the beginning of each line
+ NSMutableArray *lineIndices;
-- (id)initWithScrollView:(NSScrollView *)aScrollView;
+ NSFont *font;
+ NSColor *textColor;
+ NSColor *alternateTextColor;
+ NSColor *backgroundColor;
+ CGFloat maxWidthOfGlyph;
+ CGFloat maxWidthOfGlyph1;
+ CGFloat maxWidthOfGlyph2;
+ CGFloat maxWidthOfGlyph3;
+ CGFloat maxWidthOfGlyph4;
+ CGFloat maxWidthOfGlyph5;
+ CGFloat maxWidthOfGlyph6;
+ CGFloat maxWidthOfGlyph7;
+ CGFloat maxWidthOfGlyph8;
+ NSDictionary *textAttributes;
-- (void)setFont:(NSFont *)aFont;
-- (NSFont *)font;
+ // Add support for selection by clicking/dragging
+ NSUInteger dragSelectionStartLine;
-- (void)setTextColor:(NSColor *)color;
-- (NSColor *)textColor;
+}
-- (void)setAlternateTextColor:(NSColor *)color;
-- (NSColor *)alternateTextColor;
+@property(retain) NSColor *alternateTextColor;
+@property(retain) NSColor *backgroundColor;
-- (void)setBackgroundColor:(NSColor *)color;
-- (NSColor *)backgroundColor;
+- (NSFont*)font;
+- (void)setFont:(NSFont*)aFont;
+- (NSColor*)textColor;
+- (void)setTextColor:(NSColor*)color;
+- (id)initWithScrollView:(NSScrollView *)aScrollView;
- (NSUInteger)lineNumberForLocation:(CGFloat)location;
-
-- (NSUInteger)lineNumberForCharacterIndex:(NSUInteger)index inText:(NSString *)text;
+- (NSUInteger)lineNumberForCharacterIndex:(NSUInteger)index;
@end
diff --git a/Source/NoodleLineNumberView.m b/Source/NoodleLineNumberView.m
index 3df2b423..ebca542d 100644
--- a/Source/NoodleLineNumberView.m
+++ b/Source/NoodleLineNumberView.m
@@ -28,32 +28,58 @@
//
// This version of the NoodleLineNumberView for Sequel Pro removes marker
-// functionality and adds selection by clicking on the ruler.
+// functionality and adds selection by clicking on the ruler. Furthermore
+// the code was optimized.
#import "NoodleLineNumberView.h"
#include <tgmath.h>
-#define DEFAULT_THICKNESS 22.0
-#define RULER_MARGIN 5.0
+#pragma mark NSCoding methods
+
+#define NOODLE_FONT_CODING_KEY @"font"
+#define NOODLE_TEXT_COLOR_CODING_KEY @"textColor"
+#define NOODLE_ALT_TEXT_COLOR_CODING_KEY @"alternateTextColor"
+#define NOODLE_BACKGROUND_COLOR_CODING_KEY @"backgroundColor"
+
+#pragma mark -
+
+#define DEFAULT_THICKNESS 22.0
+#define RULER_MARGIN 5.0
+#define RULER_MARGIN2 RULER_MARGIN * 2
+
+typedef NSRange (*RangeOfLineIMP)(id object, SEL selector, NSRange range);
+
+#pragma mark -
@interface NoodleLineNumberView (Private)
- (NSMutableArray *)lineIndices;
- (void)invalidateLineIndices;
- (void)calculateLines;
-- (NSDictionary *)textAttributes;
+- (void)updateGutterThicknessConstants;
@end
@implementation NoodleLineNumberView
+@synthesize alternateTextColor;
+@synthesize backgroundColor;
+
- (id)initWithScrollView:(NSScrollView *)aScrollView
{
+
if ((self = [super initWithScrollView:aScrollView orientation:NSVerticalRuler]) != nil)
{
[self setClientView:[aScrollView documentView]];
+ [self setAlternateTextColor:[NSColor whiteColor]];
lineIndices = nil;
+ textAttributes = [[NSDictionary dictionaryWithObjectsAndKeys:
+ [self font], NSFontAttributeName,
+ [self textColor], NSForegroundColorAttributeName,
+ nil] retain];
+ maxWidthOfGlyph = [[NSString stringWithString:@"8"] sizeWithAttributes:textAttributes].width;
+ [self updateGutterThicknessConstants];
}
return self;
@@ -69,27 +95,36 @@
[[NSNotificationCenter defaultCenter] removeObserver:self];
if (lineIndices) [lineIndices release];
- [font release];
-
+ if (textAttributes) [textAttributes release];
+ if (font) [font release];
+ if (textColor) [textColor release];
[super dealloc];
}
+#pragma mark -
+
- (void)setFont:(NSFont *)aFont
{
if (font != aFont)
{
[font autorelease];
font = [aFont retain];
+ if (textAttributes) [textAttributes release];
+ textAttributes = [[NSDictionary dictionaryWithObjectsAndKeys:
+ font, NSFontAttributeName,
+ [self textColor], NSForegroundColorAttributeName,
+ nil] retain];
+ maxWidthOfGlyph = [[NSString stringWithString:@"8"] sizeWithAttributes:textAttributes].width;
+ [self updateGutterThicknessConstants];
}
}
- (NSFont *)font
{
if (font == nil)
- {
return [NSFont labelFontOfSize:[NSFont systemFontSizeForControlSize:NSMiniControlSize]];
- }
- return font;
+
+ return font;
}
- (void)setTextColor:(NSColor *)color
@@ -98,101 +133,68 @@
{
[textColor autorelease];
textColor = [color retain];
+ if (textAttributes) [textAttributes release];
+ textAttributes = [[NSDictionary dictionaryWithObjectsAndKeys:
+ [self font], NSFontAttributeName,
+ textColor, NSForegroundColorAttributeName,
+ nil] retain];
+ maxWidthOfGlyph = [[NSString stringWithString:@"8"] sizeWithAttributes:textAttributes].width;
+ [self updateGutterThicknessConstants];
}
}
- (NSColor *)textColor
{
if (textColor == nil)
- {
return [NSColor colorWithCalibratedWhite:0.42 alpha:1.0];
- }
- return textColor;
-}
-
-- (void)setAlternateTextColor:(NSColor *)color
-{
- if (alternateTextColor != color)
- {
- [alternateTextColor autorelease];
- alternateTextColor = [color retain];
- }
-}
-
-- (NSColor *)alternateTextColor
-{
- if (alternateTextColor == nil)
- {
- return [NSColor whiteColor];
- }
- return alternateTextColor;
-}
-
-- (void)setBackgroundColor:(NSColor *)color
-{
- if (backgroundColor != color)
- {
- [backgroundColor autorelease];
- backgroundColor = [color retain];
- }
-}
-- (NSColor *)backgroundColor
-{
- return backgroundColor;
+ return textColor;
}
- (void)setClientView:(NSView *)aView
{
- id oldClientView;
-
- oldClientView = [self clientView];
+ id oldClientView = [self clientView];
if ((oldClientView != aView) && [oldClientView isKindOfClass:[NSTextView class]])
- {
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSTextStorageDidProcessEditingNotification object:[(NSTextView *)oldClientView textStorage]];
- }
+
[super setClientView:aView];
+
if ((aView != nil) && [aView isKindOfClass:[NSTextView class]])
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textDidChange:) name:NSTextStorageDidProcessEditingNotification object:[(NSTextView *)aView textStorage]];
-
[self invalidateLineIndices];
}
}
-- (NSMutableArray *)lineIndices
-{
- if (lineIndices == nil)
- {
- [self calculateLines];
- }
- return lineIndices;
-}
-
-- (void)invalidateLineIndices
-{
- if (lineIndices) [lineIndices release], lineIndices = nil;
-}
+#pragma mark -
- (void)textDidChange:(NSNotification *)notification
{
- // Invalidate the line indices. They will be recalculated and recached on demand.
- [self invalidateLineIndices];
+
+ if(![self clientView]) return;
+
+ NSUInteger editMask = [[(NSTextView *)[self clientView] textStorage] editedMask];
+
+ // Invalidate the line indices only if text view was changed in length but not if the font was changed.
+ // They will be recalculated and recached on demand.
+ if(editMask != 1)
+ [self invalidateLineIndices];
[self setNeedsDisplay:YES];
+
}
- (NSUInteger)lineNumberForLocation:(CGFloat)location
{
- NSUInteger line, count, index, rectCount, i;
- NSRectArray rects;
- NSRect visibleRect;
- NSLayoutManager *layoutManager;
- NSTextContainer *container;
- NSRange nullRange;
- NSArray *lines;
- id view;
+ NSUInteger line, count, rectCount, i;
+ NSRectArray rects;
+ NSRect visibleRect;
+ NSLayoutManager *layoutManager;
+ NSTextContainer *container;
+ NSRange nullRange;
+ NSArray *lines;
+ id view;
view = [self clientView];
visibleRect = [[[self scrollView] contentView] bounds];
@@ -216,148 +218,83 @@
// It doesn't show up in the glyphs so would not be accounted for.
range.length++;
- for (line = [self lineNumberForCharacterIndex:range.location inText:@""]; line < count; line++)
- {
+ // Cache loop methods for speed
+ SEL lineNumberForCharacterIndexSel = @selector(lineNumberForCharacterIndex:);
+ IMP lineNumberForCharacterIndexIMP = [self methodForSelector:lineNumberForCharacterIndexSel];
- index = [NSArrayObjectAtIndex(lines, line) unsignedIntegerValue];
+ for (line = (NSUInteger)(*lineNumberForCharacterIndexIMP)(self, lineNumberForCharacterIndexSel, range.location); line < count; line++)
+ {
- rects = [layoutManager rectArrayForCharacterRange:NSMakeRange(index, 0)
+ rects = [layoutManager rectArrayForCharacterRange:NSMakeRange([NSArrayObjectAtIndex(lines, line) unsignedIntegerValue], 0)
withinSelectedCharacterRange:nullRange
inTextContainer:container
rectCount:&rectCount];
- for (i = 0; i < rectCount; i++)
- if ((location >= NSMinY(rects[i])) && (location < NSMaxY(rects[i])))
- return line + 1;
+ if(!rectCount) return NSNotFound;
+
+ if ((location >= NSMinY(rects[0])) && (location < NSMaxY(rects[0])))
+ return line + 1;
}
}
return NSNotFound;
}
-- (void)calculateLines
+- (NSUInteger)lineNumberForCharacterIndex:(NSUInteger)index
{
- id view = [self clientView];
-
- if ([view isKindOfClass:[NSTextView class]])
- {
- NSUInteger index, stringLength, lineEnd, contentEnd;
- NSString *text;
- CGFloat oldThickness, newThickness;
-
- text = [view string];
- stringLength = [text length];
-
- // Switch off line numbering if text larger than 6MB
- // for performance reasons.
- // TODO improve performance maybe via threading
- if(stringLength>6000000)
- return;
+ NSUInteger left, right, mid, lineStart;
+ NSMutableArray *lines;
- if (lineIndices) [lineIndices release], lineIndices = nil;
- lineIndices = [[NSMutableArray alloc] initWithCapacity:1];
-
- index = 0;
+ lines = [self lineIndices];
- do
- {
- [lineIndices addObject:[NSNumber numberWithUnsignedInteger:index]];
- index = NSMaxRange([text lineRangeForRange:NSMakeRange(index, 0)]);
- }
- while (index < stringLength);
+ // Binary search
+ left = 0;
+ right = [lines count];
- // Check if text ends with a new line.
- [text getLineStart:NULL end:&lineEnd contentsEnd:&contentEnd forRange:NSMakeRange([[lineIndices lastObject] unsignedIntegerValue], 0)];
- if (contentEnd < lineEnd)
- {
- [lineIndices addObject:[NSNumber numberWithUnsignedInteger:index]];
- }
+ while ((right - left) > 1)
+ {
- oldThickness = [self ruleThickness];
- newThickness = [self requiredThickness];
- if (fabs(oldThickness - newThickness) > 1)
- {
- NSInvocation *invocation;
+ mid = (right + left) >> 1;
+ lineStart = [NSArrayObjectAtIndex(lines, mid) unsignedIntegerValue];
- // Not a good idea to resize the view during calculations (which can happen during
- // display). Do a delayed perform (using NSInvocation since arg is a float).
- invocation = [NSInvocation invocationWithMethodSignature:[self methodSignatureForSelector:@selector(setRuleThickness:)]];
- [invocation setSelector:@selector(setRuleThickness:)];
- [invocation setTarget:self];
- [invocation setArgument:&newThickness atIndex:2];
+ if (index < lineStart)
+ right = mid;
+ else if (index > lineStart)
+ left = mid;
+ else
+ return mid;
- [invocation performSelector:@selector(invoke) withObject:nil afterDelay:0.0];
- }
}
-}
-
-- (NSUInteger)lineNumberForCharacterIndex:(NSUInteger)index inText:(NSString *)text
-{
- NSUInteger left, right, mid, lineStart;
- NSMutableArray *lines;
-
- lines = [self lineIndices];
-
- // Binary search
- left = 0;
- right = [lines count];
-
- while ((right - left) > 1)
- {
- mid = (right + left) / 2;
- lineStart = [NSArrayObjectAtIndex(lines, mid) unsignedIntegerValue];
-
- if (index < lineStart)
- {
- right = mid;
- }
- else if (index > lineStart)
- {
- left = mid;
- }
- else
- {
- return mid;
- }
- }
- return left;
-}
-
-- (NSDictionary *)textAttributes
-{
- return [NSDictionary dictionaryWithObjectsAndKeys:
- [self font], NSFontAttributeName,
- [self textColor], NSForegroundColorAttributeName,
- nil];
+ return left;
}
- (CGFloat)requiredThickness
{
NSUInteger lineCount = [[self lineIndices] count];
if(lineCount < 10)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"8"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph1;
else if(lineCount < 100)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"88"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph2;
else if(lineCount < 1000)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"888"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph3;
else if(lineCount < 10000)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"8888"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph4;
else if(lineCount < 100000)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"88888"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph5;
else if(lineCount < 1000000)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"888888"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph6;
else if(lineCount < 10000000)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"8888888"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph7;
else if(lineCount < 100000000)
- return ceil(MAX(DEFAULT_THICKNESS, [[NSString stringWithString:@"88888888"] sizeWithAttributes:[self textAttributes]].width + RULER_MARGIN * 2));
+ return maxWidthOfGlyph8;
else
return 100;
}
- (void)drawHashMarksAndLabelsInRect:(NSRect)aRect
{
- id view;
- NSRect bounds;
+ id view;
+ NSRect bounds;
bounds = [self bounds];
@@ -374,45 +311,45 @@
if ([view isKindOfClass:[NSTextView class]])
{
- NSLayoutManager *layoutManager;
- NSTextContainer *container;
- NSRect visibleRect;
- NSRange range, glyphRange, nullRange;
- NSString *text, *labelText;
- NSUInteger rectCount, index, line, count;
- NSRectArray rects;
- CGFloat ypos, yinset;
- NSDictionary *textAttributes;
- NSSize stringSize;
- NSArray *lines;
-
- layoutManager = [view layoutManager];
- container = [view textContainer];
- text = [view string];
- nullRange = NSMakeRange(NSNotFound, 0);
-
- yinset = [view textContainerInset].height;
- visibleRect = [[[self scrollView] contentView] bounds];
-
- textAttributes = [self textAttributes];
-
- lines = [self lineIndices];
+ NSLayoutManager *layoutManager;
+ NSTextContainer *container;
+ NSRect visibleRect;
+ NSRange range, nullRange;
+ NSString *labelText;
+ NSUInteger rectCount, index, line, count;
+ NSRectArray rects;
+ CGFloat ypos, yinset;
+ NSSize stringSize;
+ NSArray *lines;
+
+ layoutManager = [view layoutManager];
+ container = [view textContainer];
+ nullRange = NSMakeRange(NSNotFound, 0);
+
+ yinset = [view textContainerInset].height;
+ visibleRect = [[[self scrollView] contentView] bounds];
+
+ lines = [self lineIndices];
// Find the characters that are currently visible
- glyphRange = [layoutManager glyphRangeForBoundingRect:visibleRect inTextContainer:container];
- range = [layoutManager characterRangeForGlyphRange:glyphRange actualGlyphRange:NULL];
+ range = [layoutManager characterRangeForGlyphRange:[layoutManager glyphRangeForBoundingRect:visibleRect inTextContainer:container] actualGlyphRange:NULL];
// Fudge the range a tad in case there is an extra new line at end.
// It doesn't show up in the glyphs so would not be accounted for.
range.length++;
count = [lines count];
-
- CGFloat boundsRULERMargin2 = NSWidth(bounds) - RULER_MARGIN * 2.0;
+
+ CGFloat boundsRULERMargin2 = NSWidth(bounds) - RULER_MARGIN2;
CGFloat boundsWidthRULER = NSWidth(bounds) - RULER_MARGIN;
CGFloat yinsetMinY = yinset - NSMinY(visibleRect);
+ CGFloat rectHeight;
- for (line = [self lineNumberForCharacterIndex:range.location inText:text]; line < count; line++)
+ // Cache loop methods for speed
+ SEL lineNumberForCharacterIndexSel = @selector(lineNumberForCharacterIndex:);
+ IMP lineNumberForCharacterIndexIMP = [self methodForSelector:lineNumberForCharacterIndexSel];
+
+ for (line = (NSUInteger)(*lineNumberForCharacterIndexIMP)(self, lineNumberForCharacterIndexSel, range.location); line < count; line++)
{
index = [NSArrayObjectAtIndex(lines, line) unsignedIntegerValue];
@@ -433,35 +370,35 @@
stringSize = [labelText sizeWithAttributes:textAttributes];
+ rectHeight = NSHeight(rects[0]);
// Draw string flush right, centered vertically within the line
[labelText drawInRect:
NSMakeRect(boundsWidthRULER - stringSize.width,
- yinsetMinY + NSMinY(rects[0]) + ((NSHeight(rects[0]) - stringSize.height) / 2.0),
- boundsRULERMargin2, NSHeight(rects[0]))
+ yinsetMinY + NSMinY(rects[0]) + ((NSInteger)(rectHeight - stringSize.height) >> 1),
+ boundsRULERMargin2, rectHeight)
withAttributes:textAttributes];
}
}
+
if (index > NSMaxRange(range))
- {
break;
- }
+
}
}
}
- (void)mouseDown:(NSEvent *)theEvent
{
- NSPoint location;
- NSUInteger line;
- NSTextView *view;
-
- if (![[self clientView] isKindOfClass:[NSTextView class]]) return;
+
+ NSUInteger line;
+ NSTextView *view;
+
+ if (![[self clientView] isKindOfClass:[NSTextView class]]) return;
view = (NSTextView *)[self clientView];
-
- location = [self convertPoint:[theEvent locationInWindow] fromView:nil];
- line = [self lineNumberForLocation:location.y];
+
+ line = [self lineNumberForLocation:[self convertPoint:[theEvent locationInWindow] fromView:nil].y];
dragSelectionStartLine = line;
-
+
if (line != NSNotFound)
{
NSUInteger selectionStart, selectionEnd;
@@ -479,15 +416,14 @@
- (void)mouseDragged:(NSEvent *)theEvent
{
- NSPoint location;
- NSUInteger line, startLine, endLine;
- NSTextView *view;
-
- if (![[self clientView] isKindOfClass:[NSTextView class]] || dragSelectionStartLine == NSNotFound) return;
+
+ NSUInteger line, startLine, endLine;
+ NSTextView *view;
+
+ if (![[self clientView] isKindOfClass:[NSTextView class]] || dragSelectionStartLine == NSNotFound) return;
view = (NSTextView *)[self clientView];
-
- location = [self convertPoint:[theEvent locationInWindow] fromView:nil];
- line = [self lineNumberForLocation:location.y];
+
+ line = [self lineNumberForLocation:[self convertPoint:[theEvent locationInWindow] fromView:nil].y];
if (line != NSNotFound)
{
@@ -509,16 +445,11 @@
}
[view setSelectedRange:NSMakeRange(selectionStart, selectionEnd - selectionStart)];
}
-
+
[view autoscroll:theEvent];
}
-#pragma mark NSCoding methods
-
-#define NOODLE_FONT_CODING_KEY @"font"
-#define NOODLE_TEXT_COLOR_CODING_KEY @"textColor"
-#define NOODLE_ALT_TEXT_COLOR_CODING_KEY @"alternateTextColor"
-#define NOODLE_BACKGROUND_COLOR_CODING_KEY @"backgroundColor"
+#pragma mark -
- (id)initWithCoder:(NSCoder *)decoder
{
@@ -562,4 +493,94 @@
}
}
+#pragma mark -
+#pragma mark PrivateAPI
+
+- (NSMutableArray *)lineIndices
+{
+
+ if (lineIndices == nil)
+ [self calculateLines];
+
+ return lineIndices;
+
+}
+
+- (void)invalidateLineIndices
+{
+
+ if (lineIndices) [lineIndices release], lineIndices = nil;
+
+}
+
+- (void)calculateLines
+{
+ id view = [self clientView];
+
+ if ([view isKindOfClass:[NSTextView class]])
+ {
+ NSUInteger index, stringLength, lineEnd, contentEnd;
+ NSString *textString;
+ CGFloat newThickness;
+
+ textString = [view string];
+ stringLength = [textString length];
+
+ // Switch off line numbering if text larger than 6MB
+ // for performance reasons.
+ // TODO improve performance maybe via threading
+ if(stringLength>6000000)
+ return;
+
+ if (lineIndices) [lineIndices release], lineIndices = nil;
+ // Init lineIndices with text length / 16 + 1
+ lineIndices = [[NSMutableArray alloc] initWithCapacity:((NSUInteger)stringLength>>4)+1];
+
+ index = 0;
+
+ // Cache loop methods for speed
+ SEL lineRangeForRangeSel = @selector(lineRangeForRange:);
+ SEL addObjectSel = @selector(addObject:);
+ RangeOfLineIMP rangeOfLineIMP = (RangeOfLineIMP)[textString methodForSelector:lineRangeForRangeSel];
+ IMP addObjectIMP = [lineIndices methodForSelector:addObjectSel];
+
+ do
+ {
+ (void*)(*addObjectIMP)(lineIndices, addObjectSel, [NSNumber numberWithUnsignedInteger:index]);
+ index = NSMaxRange((*rangeOfLineIMP)(textString, lineRangeForRangeSel, NSMakeRange(index, 0)));
+ }
+ while (index < stringLength);
+
+ // Check if text ends with a new line.
+ [textString getLineStart:NULL end:&lineEnd contentsEnd:&contentEnd forRange:NSMakeRange([[lineIndices lastObject] unsignedIntegerValue], 0)];
+ if (contentEnd < lineEnd)
+ (void*)(*addObjectIMP)(lineIndices, addObjectSel, [NSNumber numberWithUnsignedInteger:index]);
+
+ newThickness = [self requiredThickness];
+ if (fabs([self ruleThickness] - newThickness) > 1)
+ {
+ // Not a good idea to resize the view during calculations (which can happen during
+ // display). Do a delayed perform (using NSInvocation since arg is a float).
+ NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[self methodSignatureForSelector:@selector(setRuleThickness:)]];
+ [invocation setSelector:@selector(setRuleThickness:)];
+ [invocation setTarget:self];
+ [invocation setArgument:&newThickness atIndex:2];
+
+ [invocation performSelector:@selector(invoke) withObject:nil afterDelay:0.0];
+ }
+ }
+}
+
+- (void)updateGutterThicknessConstants
+{
+ maxWidthOfGlyph1 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph + RULER_MARGIN2));
+ maxWidthOfGlyph2 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 2 + RULER_MARGIN2));
+ maxWidthOfGlyph3 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 3 + RULER_MARGIN2));
+ maxWidthOfGlyph4 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 4 + RULER_MARGIN2));
+ maxWidthOfGlyph5 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 5 + RULER_MARGIN2));
+ maxWidthOfGlyph6 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 6 + RULER_MARGIN2));
+ maxWidthOfGlyph7 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 7 + RULER_MARGIN2));
+ maxWidthOfGlyph8 = ceil(MAX(DEFAULT_THICKNESS, maxWidthOfGlyph * 8 + RULER_MARGIN2));
+}
+
@end