38 lines
1.3 KiB
Rust
38 lines
1.3 KiB
Rust
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use objc2::foundation::{NSData, NSObject, NSString};
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use objc2::rc::{Id, Shared};
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use objc2::{extern_class, extern_methods, msg_send_id, ClassType};
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extern_class!(
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// TODO: Can this be mutable?
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#[derive(Debug, PartialEq, Eq, Hash)]
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pub(crate) struct NSImage;
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unsafe impl ClassType for NSImage {
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type Super = NSObject;
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}
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);
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// Documented Thread-Unsafe, but:
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// > One thread can create an NSImage object, draw to the image buffer,
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// > and pass it off to the main thread for drawing. The underlying image
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// > cache is shared among all threads.
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// <https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Multithreading/ThreadSafetySummary/ThreadSafetySummary.html#//apple_ref/doc/uid/10000057i-CH12-126728>
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//
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// So really only unsafe to mutate on several threads.
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unsafe impl Send for NSImage {}
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unsafe impl Sync for NSImage {}
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extern_methods!(
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unsafe impl NSImage {
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pub fn new_by_referencing_file(path: &NSString) -> Id<Self, Shared> {
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let this = unsafe { msg_send_id![Self::class(), alloc] };
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unsafe { msg_send_id![this, initByReferencingFile: path] }
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}
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pub fn new_with_data(data: &NSData) -> Id<Self, Shared> {
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let this = unsafe { msg_send_id![Self::class(), alloc] };
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unsafe { msg_send_id![this, initWithData: data] }
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}
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}
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);
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