| // SPDX-License-Identifier: LGPL-2.1-or-later |
|
|
| #include <CoreFoundation/CoreFoundation.h> |
| #include <CoreServices/CoreServices.h> |
| #include <QuickLook/QuickLook.h> |
| #include <Foundation/Foundation.h> |
| #include <AppKit/AppKit.h> |
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| OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options) |
| { |
| OSStatus ret = coreFoundationUnknownErr; |
|
|
| @autoreleasepool { |
|
|
| // unzip -qq -o -j -d /tmp ~/test.FCStd thumbnails/Thumbnail.png |
| // -qq : be really quiet |
| // -o : overwrite without prompt |
| // -j : don't create archive paths |
| // -d : destination path (create this path) |
| // extracts thumbnails/Thumbnail.png to /tmp/Thumbnail.png . |
| // We add a UUID and use a system temp directory here. |
| |
| // TODO: do we need to release any of these resources? |
| NSUUID *uuid = [NSUUID UUID]; |
| NSString *uuidPath = [uuid UUIDString]; |
| NSString *unzipDstPath = [NSString stringWithFormat:@"%@/%@/", NSTemporaryDirectory(), uuidPath]; |
| NSString *unzipDstFile = [NSString stringWithFormat:@"%@%@", unzipDstPath, @"Thumbnail.png"]; |
| NSURL *zipFile = (__bridge NSURL *)url; |
| NSTask *task = [NSTask launchedTaskWithLaunchPath:@"/usr/bin/unzip" |
| arguments:@[@"-qq", @"-o", @"-j", @"-d", unzipDstPath, [zipFile path], @"thumbnails/Thumbnail.png"]]; |
| [task waitUntilExit]; |
| // NSLog(@"%@", unzipDstPath); |
| // NSLog(@"%@", unzipDstFile); |
| |
| if ( [[NSFileManager defaultManager] fileExistsAtPath:unzipDstFile] ) |
| { |
| // Preview will be drawn in a vectorized context |
| CGSize canvasSize = CGSizeMake(512, 512); |
| CGContextRef cgContext = QLPreviewRequestCreateContext(preview, canvasSize, true, NULL); |
| if(cgContext) |
| { |
| CGDataProviderRef pngDP = CGDataProviderCreateWithFilename([unzipDstFile fileSystemRepresentation]); |
| CGImageRef image = CGImageCreateWithPNGDataProvider(pngDP, NULL, true, kCGRenderingIntentDefault); |
| |
| CGContextDrawImage(cgContext,CGRectMake(0, 0, 512, 512), image); |
| |
| QLPreviewRequestFlushContext(preview, cgContext); |
| ret = noErr; |
| |
| CFRelease(cgContext); |
| CFRelease(image); |
| } |
| } |
| |
| if ( [[NSFileManager defaultManager] fileExistsAtPath:unzipDstFile] ) |
| [[NSFileManager defaultManager] removeItemAtPath:unzipDstFile error:nil]; |
| |
| if ( [[NSFileManager defaultManager] fileExistsAtPath:unzipDstPath] ) |
| [[NSFileManager defaultManager] removeItemAtPath:unzipDstPath error:nil]; |
| } |
| |
| return ret; |
| } |
| |
| |
| void CancelPreviewGeneration(void* thisInterface, QLPreviewRequestRef preview) |
| { |
| // implement only if supported |
| } |
| |
