保存整个NSView内容，这是NSScrollView内部 [英] Saving entire NSView contents, which is inside an NSScrollView

问题描述

我尝试将NSView的内容保存为图片，但只保存scrollview中可见的图片。

I'm trying to save contents of an NSView as an image, but, only the image visible inside the scrollview is saved.

这里是实际加载的图片在视图中：
。

Here is the actual image loaded in the view: .

但这是我能够保存的形象：

But this is how I'm able to save the image:

有没有办法保存整个图像在NSView？

Is there any way to save the entire image in the NSView?

这是我如何保存我的NSView子类：

This is how I'm saving my NSView subclass:

- (void)save
{
    [self lockFocus];
    NSBitmapImageRep* rep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:[self bounds]];  
    [self unlockFocus];

    NSData* data = [rep representationUsingType:NSPNGFileType properties:nil];

    NSString* string = NSHomeDirectory();
    NSString* pth1 = [string stringByAppendingPathComponent:@"ttx.png"];

    [data writeToFile:pth1 atomically:YES];
}

此方法是在我要保存的视图中。

This method is in the View i want to save.

推荐答案

使用 - [NSView cacheDisplayInRect：toBitmapImageRep：]

NSBitmapImageRep* rep = [self bitmapImageRepForCachingDisplayInRect:self.bounds];
[self cacheDisplayInRect:self.bounds toBitmapImageRep:rep];

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