如何以编程方式创建ICNS图标？ [英] How to create a ICNS icon programmatically?

问题描述

OK这是我想要的：

• 取一些 NSImage s


• 将它们添加到 ICNS 文件


• 保存

这是我到目前为止做的（纯粹作为测试）：

   - （CGImageRef）refFromImage：（NSImage *）img 
 {
 CGImageSourceRef source; 
 
 source = CGImageSourceCreateWithData（（CFDataRef）[img TIFFRepresentation]，NULL）; 
 CGImageRef maskRef = CGImageSourceCreateImageAtIndex（source，0，NULL）; 
 
 return maskRef; 
} 
 
  - （void）awakeFromNib 
 {
 NSImage * img1 = [NSImage imageNamed：@image1]; 
 NSImage * img2 = [NSImage imageNamed：@image2]; 
 
 NSLog（@％@，img1）; 
 CGImageRef i1 = [self refFromImage：img1]; 
 CGImageRef i2 = [self refFromImage：img2]; 
 
 NSURL * fileURL = [NSURL fileURLWithPath：[@〜/ Documents / final.icnsstringByExpandingTildeInPath]]; 
 CGImageDestinationRef dr = CGImageDestinationCreateWithURL（（__ bridge CFURLRef）fileURL，kUTTypeAppleICNS，1，NULL）; 
 
 CGImageDestinationAddImage（dr，i1，NULL）; 
 CGImageDestinationAddImage（dr，i2，NULL）; 
 / *甚至尝试添加'multiple'次
 
 CGImageDestinationAddImage（dr，i1，NULL）; 
 CGImageDestinationAddImage（dr，i2，NULL）; 
 CGImageDestinationAddImage（dr，i1，NULL）; 
 CGImageDestinationAddImage（dr，i2，NULL）; 
 
 * / 
 
 CGImageDestinationFinalize（dr）; 
 
 CFRelease（dr）; 
} 
  

但是，它仍然会发生错误：

ImageIO：CGImageDestinationFinalize图片目的地
没有足够的图片

我的代码有什么问题？

---

我已经看过下面的答案， / p>

• 保存CGImageRef到PNG文件错误？ （ARC导致？）


• 如何从磁盘上的映像制作CGImageRef

解决方案

您可以使用 IconFamily 。

IconFamily是Mac OS X Carbon的Cocoa / Objective-C包装
API的图标系列数据类型。它的主要目的是使Cocoa
应用程序能够从NSImage
实例轻松创建自定义文件图标，从而利用Mac OS X的高分辨率RGBA
缩略图图标格式提供丰富详细缩略图预览
的文件内容。

  NSImage * mImage = [NSImage alloc] initWithContentsOfFile：@/ Users / Username / Desktop / WhiteTiger.jpg]; 
 IconFamily * fam = [IconFamily iconFamilyWithThumbnailsOfImage：mImage]; 
 [fam writeToFile：@/ Users / Username / Desktop / WhiteTiger.icns]; 
  

OK this is what I want :

• Take some NSImages
• Add them to an ICNS file
• Save it

This is what I've done so far (purely as a test) :

- (CGImageRef)refFromImage:(NSImage*)img
{
    CGImageSourceRef source;

    source = CGImageSourceCreateWithData((CFDataRef)[img TIFFRepresentation], NULL);
    CGImageRef maskRef =  CGImageSourceCreateImageAtIndex(source, 0, NULL);

    return maskRef;
}

- (void)awakeFromNib
{
    NSImage* img1 = [NSImage imageNamed:@"image1"];
    NSImage* img2 = [NSImage imageNamed:@"image2"];

    NSLog(@"%@",img1);
    CGImageRef i1 = [self refFromImage:img1];
    CGImageRef i2 = [self refFromImage:img2];

    NSURL *fileURL = [NSURL fileURLWithPath:[@"~/Documents/final.icns" stringByExpandingTildeInPath]]; 
    CGImageDestinationRef dr = CGImageDestinationCreateWithURL((__bridge CFURLRef)fileURL, kUTTypeAppleICNS , 1, NULL);

    CGImageDestinationAddImage(dr, i1, NULL);
    CGImageDestinationAddImage(dr, i2, NULL);
    /* Even tried adding 'multiple' times

    CGImageDestinationAddImage(dr, i1, NULL);
    CGImageDestinationAddImage(dr, i2, NULL);
    CGImageDestinationAddImage(dr, i1, NULL);
    CGImageDestinationAddImage(dr, i2, NULL);

    */

    CGImageDestinationFinalize(dr);

    CFRelease(dr);
}

But, it still keeps throwing an error :

ImageIO: CGImageDestinationFinalize image destination does not have enough images

What's wrong with my code?

---

I've had a look at the answers below, but still nothing :

• Save CGImageRef to PNG file errors? (ARC Caused?)
• How exactly to make a CGImageRef from an image on disk

解决方案

You can use IconFamily.

IconFamily is a Cocoa/Objective-C wrapper for the Mac OS X Carbon API's "icon family" data type. Its main purpose is to enable Cocoa applications to easily create custom file icons from NSImage instances, and thus take advantage of Mac OS X's high-resolution RGBA "thumbnail" icon formats to provide richly detailed thumbnail previews of the files' contents.

NSImage *mImage = [[NSImage alloc] initWithContentsOfFile:@"/Users/Username/Desktop/WhiteTiger.jpg"];
IconFamily *fam = [IconFamily iconFamilyWithThumbnailsOfImage:mImage];    
[fam writeToFile:@"/Users/Username/Desktop/WhiteTiger.icns"];

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