i fixed the cursor position is incorrect when inserting a image or select a image from album.

[anlong2008]

Hi, Source contributors：

I referred to SECoreTextView in a my compay project, Thanks for your SECoreTextView, that is pretty library for edit. but the cursor position is incorrect when inserting a image or select a image from album in my project and RichTextEditor project, so i fixed the bug, but i failed to push source code.

The following is my code SECoreTextView.m:

• (void)updateCaretPositionToNext:(NSInteger)currentCarePosition { if (!self.textLayout.textSelection) { self.textLayout.textSelection = [[SETextSelection alloc] init]; }

  NSUInteger index = currentCarePosition + 1; if (index == NSNotFound || index >= self.text.length) { index = self.text.length; } if (self.text.length == 0) { index = 0; }

  self.caretView.frame = [self caretRectForPosition:[SETextPosition positionWithIndex:index]];

  [self.inputDelegate selectionWillChange:self];

  self.textLayout.markedTextRange = NSMakeRange(NSNotFound, 0); self.textLayout.textSelection.selectedRange = NSMakeRange(index, 0); [self selectionChanged];

  [self.inputDelegate selectionDidChange:self]; }

• (void)insertObject:(id)object size:(CGSize)size; { NSInteger index = self.selectedRange.location; NSRange selectedNSRange = self.textLayout.textSelection.selectedRange; SETextRange markedTextRange = (SETextRange )self.markedTextRange; NSRange markedTextNSRange; if (markedTextRange) { markedTextNSRange = markedTextRange.range; } else { markedTextNSRange = NSMakeRange(NSNotFound, 0); }

  SETextAttachment *attachment = nil; NSUInteger location = 0; if (markedTextRange && markedTextNSRange.location != NSNotFound) { location = markedTextNSRange.location; } else { location = selectedNSRange.location; }

  NSString *replacementCharacter = OBJECT_REPLACEMENT_CHARACTER; attachment = [[SETextAttachment alloc] initWithObject:object size:size range:NSMakeRange(location, replacementCharacter.length)]; [self.attachments addObject:attachment];

  [self insertText:replacementCharacter]; if (self.selectedRange.location != index + 1) { [self updateCaretPositionToNext:index]; } }

thanks. jeff