[objective-c] 동적 높이가있는 행이있는보기 기반 NSTableView

더 많은 코드를 원하는 사람을 위해 내가 사용한 전체 솔루션은 다음과 같습니다. 저를 올바른 방향으로 안내 해준 corbin dunn에게 감사드립니다.

나는 주로 NSTextView나의 높이와 관련하여 높이를 설정해야했습니다 NSTableViewCell.

내 하위 클래스에서 NSViewController임시로 다음을 호출하여 새 셀을 만듭니다.outlineView:viewForTableColumn:item:

- (CGFloat)outlineView:(NSOutlineView *)outlineView heightOfRowByItem:(id)item
{
    NSTableColumn *tabCol = [[outlineView tableColumns] objectAtIndex:0];
    IBAnnotationTableViewCell *tableViewCell = (IBAnnotationTableViewCell*)[self outlineView:outlineView viewForTableColumn:tabCol item:item];
    float height = [tableViewCell getHeightOfCell];
    return height;
}

- (NSView *)outlineView:(NSOutlineView *)outlineView viewForTableColumn:(NSTableColumn *)tableColumn item:(id)item
{
    IBAnnotationTableViewCell *tableViewCell = [outlineView makeViewWithIdentifier:@"AnnotationTableViewCell" owner:self];
    PDFAnnotation *annotation = (PDFAnnotation *)item;
    [tableViewCell setupWithPDFAnnotation:annotation];
    return tableViewCell;
}

내에서 IBAnnotationTableViewCell하는 내 셀 컨트롤러 (의 서브 클래스 NSTableCellView) 내가 설정 방법을

-(void)setupWithPDFAnnotation:(PDFAnnotation*)annotation;

모든 콘센트를 설정하고 내 PDFAnnotations의 텍스트를 설정합니다. 이제 다음을 사용하여 높이를 “쉽게”계산할 수 있습니다.

-(float)getHeightOfCell
{
    return [self getHeightOfContentTextView] + 60;
}

-(float)getHeightOfContentTextView
{
    NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:[self.contentTextView font],NSFontAttributeName,nil];
    NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:[self.contentTextView string] attributes:attributes];
    CGFloat height = [self heightForWidth: [self.contentTextView frame].size.width forString:attributedString];
    return height;
}

.

- (NSSize)sizeForWidth:(float)width height:(float)height forString:(NSAttributedString*)string
{
    NSInteger gNSStringGeometricsTypesetterBehavior = NSTypesetterLatestBehavior ;
    NSSize answer = NSZeroSize ;
    if ([string length] > 0) {
        // Checking for empty string is necessary since Layout Manager will give the nominal
        // height of one line if length is 0.  Our API specifies 0.0 for an empty string.
        NSSize size = NSMakeSize(width, height) ;
        NSTextContainer *textContainer = [[NSTextContainer alloc] initWithContainerSize:size] ;
        NSTextStorage *textStorage = [[NSTextStorage alloc] initWithAttributedString:string] ;
        NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init] ;
        [layoutManager addTextContainer:textContainer] ;
        [textStorage addLayoutManager:layoutManager] ;
        [layoutManager setHyphenationFactor:0.0] ;
        if (gNSStringGeometricsTypesetterBehavior != NSTypesetterLatestBehavior) {
            [layoutManager setTypesetterBehavior:gNSStringGeometricsTypesetterBehavior] ;
        }
        // NSLayoutManager is lazy, so we need the following kludge to force layout:
        [layoutManager glyphRangeForTextContainer:textContainer] ;

        answer = [layoutManager usedRectForTextContainer:textContainer].size ;

        // Adjust if there is extra height for the cursor
        NSSize extraLineSize = [layoutManager extraLineFragmentRect].size ;
        if (extraLineSize.height > 0) {
            answer.height -= extraLineSize.height ;
        }

        // In case we changed it above, set typesetterBehavior back
        // to the default value.
        gNSStringGeometricsTypesetterBehavior = NSTypesetterLatestBehavior ;
    }

    return answer ;
}

.

- (float)heightForWidth:(float)width forString:(NSAttributedString*)string
{
    return [self sizeForWidth:width height:FLT_MAX forString:string].height ;
}