ccgus

#import <Foundation/Foundation.h>
#import <dlfcn.h>

// clang main.m  -framework Foundation

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        
        dlopen("/System/Library/Frameworks/CoreGraphics.framework/Resources/BridgeSupport/CoreGraphics.dylib", RTLD_LAZY);
        

ccgus

from AppKit import *
from Foundation import *

html = NSString.stringWithString_("<b style='font-size: 20px; font-family: HelveticaNeue'>Hi</b>")
d = html.dataUsingEncoding_(NSUTF8StringEncoding);
ats = NSAttributedString.alloc().initWithHTML_options_documentAttributes_(d, None, None)[0];
ps = ats.attribute_atIndex_effectiveRange_(NSParagraphStyleAttributeName, 0, None)[0]
print(ps.minimumLineHeight())
print(ps.maximumLineHeight())

ccgus

/*
This sample shows how CGImageSourceCreateThumbnailAtIndex leaks something akin 
to the memory behind a CGImageRef when asked to create a thumbnail for a 16bpc
TIFF image if one isn't present.

Full sample project here:
http://shapeof.com/archives/2019/media/SixteenBitPerComponentThumbnailLeak.zip
*/

ccgus

- (FJSValue*)evaluateModuleAtURL:(NSURL*)scriptURL {
    
    if (scriptURL) {
        NSError *error;
        NSString *script = [NSString stringWithContentsOfURL:scriptURL encoding:NSUTF8StringEncoding error:&error];
        
        if (script) {

#define NODE_STYLE_WRAPPER 1
#ifdef NODE_STYLE_WRAPPER

ccgus

/*
How to install this plugin:
1) Choose Acorn's Help ▸ Open Acorn's App Support Folder menu item.
2) Place this script in the Plug-Ins folder (and make sure it ends with .jstalk)
3) Restart Acorn.  The plugin will now show up in the Filter menu.
*/


function main(image, doc, layer) {
    

ccgus

var url = NSURL.fileURLWithPath_('/Library/Desktop Pictures/Yosemite.jpg');
var img = CIImage.imageWithContentsOfURL_(url)
var f = CIFilter.filterWithName_('CIColorInvert');
f.setValue_forKey_(img, kCIInputImageKey);
var r = f.outputImage();
var tiff = r.TIFFRepresentation();
tiff.writeToFile_atomically_('/tmp/foo.tiff', true);
NSWorkspace.sharedWorkspace().openFile_('/tmp/foo.tif');

ccgus

void TSCreateImageFromIOSurfaceReleaseCallback(void * __nullable info, const void *data, size_t size);
void TSCreateImageFromIOSurfaceReleaseCallback(void * __nullable info, const void *data, size_t size) {
    CFRelease(info);
}




CGImageRef TSCreateImageFromIOSurface(IOSurfaceRef surface, CGColorSpaceRef cs) {
    

ccgus

    NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
    
    NSDictionary *activeAppDict = [workspace activeApplication];
    ProcessSerialNumber    psn;
    
    psn.highLongOfPSN = [[activeAppDict objectForKey:@"NSApplicationProcessSerialNumberHigh"] intValue];
    psn.lowLongOfPSN  = [[activeAppDict objectForKey:@"NSApplicationProcessSerialNumberLow"] intValue];
    
    SetFrontProcess( &psn );  

ccgus

    NSImageRep *originalCursorRep = [originalCursorImage bestRepresentationForRect:NSMakeRect(0, 0, [originalCursorImage size].width * retinaScale, [originalCursorImage size].height * retinaScale) context:nil hints:[NSDictionary dictionaryWithObject:[NSAffineTransform transform] forKey:NSImageHintCTM]];

ccgus

import Cocoa
import ImageIO
import CoreGraphics


var cs = CGColorSpaceCreateDeviceRGB();

var bitmapOptions = CGBitmapInfo.byteOrder16Little.rawValue | CGImageAlphaInfo.premultipliedLast.rawValue;

var bitmapContext = CGContext(data: nil, width: 10, height: 10, bitsPerComponent: 16, bytesPerRow: 0, space: cs, bitmapInfo: bitmapOptions);