Curtis Hard
70f9c29fe5
- Basically not obbeying the hidden node properly - Also fixes CSS parser from beach balling when parsing @ selectors - Also dramatically improves parsing of key value pairs in CSS, by dramatically, i mean took a file down from 300ms parse to 5ms… woah.
140 lines
3.1 KiB
Objective-C
140 lines
3.1 KiB
Objective-C
//
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// IJSVGStyle.m
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// IJSVGExample
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//
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// Created by Curtis Hard on 03/09/2014.
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// Copyright (c) 2014 Curtis Hard. All rights reserved.
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//
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#import "IJSVGStyle.h"
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#import "IJSVGUtils.h"
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@implementation IJSVGStyle
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- (void)dealloc
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{
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[_dict release], _dict = nil;
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[super dealloc];
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}
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- (id)init
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{
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if( ( self = [super init] ) != nil ) {
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_dict = [[NSMutableDictionary alloc] init];
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}
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return self;
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}
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- (void)setPropertyValue:(id)value
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forProperty:(NSString *)key
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{
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[_dict setObject:value
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forKey:key];
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}
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- (NSDictionary *)properties
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{
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return _dict;
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}
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- (id)property:(NSString *)key
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{
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return [_dict objectForKey:key];
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}
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+ (IJSVGStyle *)parseStyleString:(NSString *)string
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{
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IJSVGStyle * style = [[[[self class] alloc] init] autorelease];
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NSInteger length = string.length;
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NSInteger index = 0;
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NSString * key = nil;
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NSString * value = nil;
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// iterate over the string - its actually really simple what we need
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// to do
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for(NSInteger i = 0; i < length; i++) {
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unichar c = [string characterAtIndex:i];
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// find the key
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if(c == ':') {
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key = [string substringWithRange:NSMakeRange(index, (i-index))];
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index = i+1;
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}
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// find the value
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else if(c == ';' || i == (length-1)) {
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value = [string substringWithRange:NSMakeRange(index, (i-index))];
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index = i+1;
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}
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// set the propery if it actually exists
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if(key != nil && value != nil) {
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[self computeStyleProperty:key
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value:value
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style:style];
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key = nil;
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value = nil;
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}
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}
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return style;
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}
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+ (NSString *)trimString:(NSString *)string
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{
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return [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
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}
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+ (NSArray *)allowedColourKeys
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{
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return @[@"fill",@"stroke-colour",@"stop-color",@"stroke"];
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}
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+ (void)computeStyleProperty:(NSString *)key
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value:(NSString *)value
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style:(IJSVGStyle *)style
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{
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key = [[self class] trimString:key];
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value = [[self class] trimString:value];
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[style setPropertyValue:value
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forProperty:key];
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}
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+ (BOOL)isNumeric:(NSString *)string
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{
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return [[NSScanner scannerWithString:string] scanFloat:NULL];
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}
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- (void)setProperties:(NSDictionary *)properties
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replaceAll:(BOOL)flag
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{
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if(flag) {
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[_dict removeAllObjects];
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}
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[_dict addEntriesFromDictionary:properties];
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}
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- (NSString *)description
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{
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return [_dict description];
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}
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- (IJSVGStyle *)mergedStyle:(IJSVGStyle *)style
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{
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// create the new style
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IJSVGStyle * newStyle = [[[IJSVGStyle alloc] init] autorelease];
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// grab the current style
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NSMutableDictionary * dict = [[[self properties] mutableCopy] autorelease];
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// overwride the style with the new styles
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[dict addEntriesFromDictionary:[style properties]];
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// add the styles to the style
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[newStyle setProperties:dict
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replaceAll:YES];
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return newStyle;
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}
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@end
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