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Make able to set NSBackgroundColorAttributeName. #54

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Make able to set NSBackgroundColorAttributeName. #54

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35 changes: 35 additions & 0 deletions Lib/SETextView.m
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Original file line number Diff line number Diff line change
Expand Up @@ -671,6 +671,37 @@ - (void)drawTextDecorations
}
#endif

#if TARGET_OS_IPHONE
- (void)drawTextBackgroundColorRect
{
[self.attributedText enumerateAttribute:NSBackgroundColorAttributeName inRange:NSMakeRange(0, self.attributedText.length) options:kNilOptions usingBlock:^(id value, NSRange range, BOOL *stop) {
if (!value) {
return;
}

for (SELineLayout *lineLayout in self.textLayout.lineLayouts) {
CGRect rect = [lineLayout rectOfStringWithRange:range];
if (!CGRectIsEmpty(rect)) {
UIColor *color = (UIColor *)value;
if (![color isKindOfClass: [UIColor class]]) {
return;
}
UIBezierPath *path = [UIBezierPath bezierPath];

[path moveToPoint:CGPointMake(CGRectGetMinX(rect), CGRectGetMidY(rect))];
[path addLineToPoint:CGPointMake(CGRectGetMaxX(rect), CGRectGetMidY(rect))];

path.lineWidth = rect.size.height;
[color setStroke];

[path stroke];
}
}
}];
}
#endif


- (void)drawTextAttachmentsInContext:(CGContextRef)context
{
NSMutableSet *attachmentsToLeave = [[NSMutableSet alloc] init];
Expand Down Expand Up @@ -934,6 +965,10 @@ - (void)drawRect:(CGRect)dirtyRect
[self drawTextDecorations];
#endif

#if TARGET_OS_IPHONE
[self drawTextBackgroundColorRect];
#endif

[self drawTextAttachmentsInContext:context];

#if TARGET_OS_IPHONE
Expand Down