objective-c - NSLayoutManager Text 新行似乎从矩形底部开始向上

Question

m_LayoutManager = [[NSLayoutManager alloc] init];
m_TextContainer = [[NSTextContainer alloc] init];
m_TextStorage = [[NSTextStorage alloc] initWithString: @"Here's to the crazy ones, the misfits, the rebels, the troublemakers, the round pegs in the square holes, the ones who see things differently."];  
[m_LayoutManager addTextContainer: m_TextContainer];
[m_TextStorage addLayoutManager: m_LayoutManager];
[m_TextContainer release];
[m_LayoutManager release];
[m_TextStorage replaceCharactersInRange:NSMakeRange(0, [m_TextStorage length]) withString: XMajor];
[m_TextContainer setContainerSize: NSMakeSize(75,50)];

NSRange glyphRange = [m_LayoutManager glyphRangeForTextContainer: m_TextContainer];
NSRect usedRect = [m_LayoutManager usedRectForTextContainer: m_TextContainer];

[[NSColor brownColor] setFill];
//NSRectFill( NSMakeRect(j - usedRect.size.width/2,y0 - 50 - 5,50,50));

[m_LayoutManager drawGlyphsForGlyphRange:glyphRange 
                                 atPoint: NSMakePoint(j - usedRect.size.width/2,y0 - 50 - 5)];  

我最终看到的是从矩形底部开始向上的文本。当我在 View 中绘制它时，它看起来像这样:

ferently.the ones who see things difnd pegs in the square holes, the troublemakers, the rou the misfits, the rebels,Here's to the crazy ones,

我希望文本从顶部开始向下，并且我还希望文本自动换行，现在它将在新行上从单词的中间开始。我阅读了有关 NSLayoutManager、NSParagraphStyle 和 NSTypeSetter 的内容，但我不知道如何解决此问题。

Answer 1

重写 isFlipped 以在 NSView 子类中返回 YES。