Merge pull request #321 from SSheldon/objc_lib

Use objc crate for Objective-C runtime functionality
This commit is contained in:
Brendan Zabarauskas 2015-03-26 09:58:26 +11:00
commit eeb314d3aa
3 changed files with 64 additions and 101 deletions

View file

@ -30,23 +30,11 @@ clock_ticks = "*"
[target.arm-linux-androideabi.dependencies.android_glue]
version = "0"
[target.i686-apple-darwin.dependencies.glutin_cocoa]
version = "0"
[target.x86_64-apple-darwin.dependencies.glutin_cocoa]
version = "0"
[target.i686-apple-darwin.dependencies.glutin_core_graphics]
version = "0"
[target.x86_64-apple-darwin.dependencies.glutin_core_graphics]
version = "0"
[target.i686-apple-darwin.dependencies.glutin_core_foundation]
version = "0"
[target.x86_64-apple-darwin.dependencies.glutin_core_foundation]
version = "0"
[target.x86_64-apple-darwin.dependencies]
objc = "0.1"
glutin_cocoa = "0"
glutin_core_graphics = "0"
glutin_core_foundation = "0"
[target.i686-pc-windows-gnu.dependencies]
winapi = "0.1"

View file

@ -10,9 +10,10 @@ use BuilderAttribs;
use GlRequest;
use native_monitor::NativeMonitorId;
use cocoa::base::{Class, id, YES, NO, NSUInteger, nil, objc_allocateClassPair, class, objc_registerClassPair};
use cocoa::base::{selector, msg_send, msg_send_stret, class_addMethod, class_addIvar};
use cocoa::base::{object_setInstanceVariable, object_getInstanceVariable};
use objc::runtime::{Class, Object, Sel, BOOL, YES, NO};
use objc::declare::ClassDecl;
use cocoa::base::{id, nil, NSUInteger};
use cocoa::appkit;
use cocoa::appkit::*;
use cocoa::appkit::NSEventSubtype::*;
@ -22,8 +23,7 @@ use core_foundation::string::CFString;
use core_foundation::bundle::{CFBundleGetBundleWithIdentifier, CFBundleGetFunctionPointerForName};
use std::cell::Cell;
use std::ffi::{CString, CStr};
use std::mem;
use std::ffi::CStr;
use std::ptr;
use std::collections::VecDeque;
use std::str::FromStr;
@ -63,35 +63,25 @@ struct WindowDelegate {
}
impl WindowDelegate {
fn class_name() -> &'static [u8] {
b"GlutinWindowDelegate\0"
}
fn state_ivar_name() -> &'static [u8] {
b"glutinState"
}
/// Get the delegate class, initiailizing it neccessary
fn class() -> Class {
fn class() -> *const Class {
use std::sync::{Once, ONCE_INIT};
use std::rt;
extern fn window_should_close(this: id, _: id) -> id {
extern fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
unsafe {
let delegate = WindowDelegate { this: this };
(*delegate.get_state()).is_closed = true;
mem::forget(delegate);
let state: *mut libc::c_void = *this.get_ivar("glutinState");
let state = state as *mut DelegateState;
(*state).is_closed = true;
}
0
NO
}
extern fn window_did_resize(this: id, _: id) -> id {
extern fn window_did_resize(this: &Object, _: Sel, _: id) {
unsafe {
let delegate = WindowDelegate { this: this };
let state = &mut *delegate.get_state();
mem::forget(delegate);
let state: *mut libc::c_void = *this.get_ivar("glutinState");
let state = &mut *(state as *mut DelegateState);
let _: id = msg_send()(*state.context, selector("update"));
let _: id = msg_send![*state.context, update];
if let Some(handler) = state.handler {
let rect = NSView::frame(*state.view);
@ -100,64 +90,43 @@ impl WindowDelegate {
(scale_factor * rect.size.height as f32) as u32);
}
}
0
}
static mut delegate_class: Class = nil;
static mut init: Once = ONCE_INIT;
static mut delegate_class: *const Class = 0 as *const Class;
static INIT: Once = ONCE_INIT;
INIT.call_once(|| unsafe {
// Create new NSWindowDelegate
let superclass = Class::get("NSObject").unwrap();
let mut decl = ClassDecl::new(superclass, "GlutinWindowDelegate").unwrap();
// Add callback methods
decl.add_method(sel!(windowShouldClose:),
window_should_close as extern fn(&Object, Sel, id) -> BOOL);
decl.add_method(sel!(windowDidResize:),
window_did_resize as extern fn(&Object, Sel, id));
// Store internal state as user data
decl.add_ivar::<*mut libc::c_void>("glutinState");
delegate_class = decl.register();
});
unsafe {
init.call_once(|| {
let ptr_size = mem::size_of::<libc::intptr_t>();
// Create new NSWindowDelegate
delegate_class = objc_allocateClassPair(
class("NSObject"),
WindowDelegate::class_name().as_ptr() as *const i8, 0);
// Add callback methods
class_addMethod(delegate_class,
selector("windowShouldClose:"),
window_should_close,
CString::new("B@:@").unwrap().as_ptr());
class_addMethod(delegate_class,
selector("windowDidResize:"),
window_did_resize,
CString::new("V@:@").unwrap().as_ptr());
// Store internal state as user data
class_addIvar(delegate_class, WindowDelegate::state_ivar_name().as_ptr() as *const i8,
ptr_size as u64, 3,
CString::new("?").unwrap().as_ptr());
objc_registerClassPair(delegate_class);
// Free class at exit
rt::at_exit(|| {
// objc_disposeClassPair(delegate_class);
});
});
delegate_class
}
}
fn new(window: id) -> WindowDelegate {
unsafe {
let delegate: id = msg_send()(WindowDelegate::class(), selector("new"));
let _: id = msg_send()(window, selector("setDelegate:"), delegate);
let delegate: id = msg_send![WindowDelegate::class(), new];
let _: id = msg_send![window, setDelegate:delegate];
WindowDelegate { this: delegate }
}
}
unsafe fn set_state(&self, state: *mut DelegateState) {
object_setInstanceVariable(self.this,
WindowDelegate::state_ivar_name().as_ptr() as *const i8,
state as *mut libc::c_void);
}
fn get_state(&self) -> *mut DelegateState {
unsafe {
let mut state = ptr::null_mut();
object_getInstanceVariable(self.this,
WindowDelegate::state_ivar_name().as_ptr() as *const i8,
&mut state);
state as *mut DelegateState
}
(&mut *self.this).set_ivar("glutinState", state as *mut libc::c_void);
}
}
@ -234,7 +203,7 @@ impl<'a> Iterator for PollEventsIterator<'a> {
self.window.is_closed.set(ds.is_closed);
}
let event = match msg_send()(event, selector("type")) {
let event = match msg_send![event, type] {
NSLeftMouseDown => { Some(MouseInput(Pressed, MouseButton::Left)) },
NSLeftMouseUp => { Some(MouseInput(Released, MouseButton::Left)) },
NSRightMouseDown => { Some(MouseInput(Pressed, MouseButton::Right)) },
@ -244,8 +213,8 @@ impl<'a> Iterator for PollEventsIterator<'a> {
NSOtherMouseDragged |
NSRightMouseDragged => {
let window_point = event.locationInWindow();
let window: id = msg_send()(event, selector("window"));
let view_point = if window == 0 {
let window: id = msg_send![event, window];
let view_point = if window == nil {
let window_rect = self.window.window.convertRectFromScreen_(NSRect::new(window_point, NSSize::new(0.0, 0.0)));
self.window.view.convertPoint_fromView_(window_rect.origin, nil)
} else {
@ -416,15 +385,15 @@ impl Window {
};
let matching_screen = {
let screens = NSScreen::screens(nil);
let count: NSUInteger = msg_send()(screens, selector("count"));
let count: NSUInteger = msg_send![screens, count];
let key = IdRef::new(NSString::alloc(nil).init_str("NSScreenNumber"));
let mut matching_screen: Option<id> = None;
for i in (0..count) {
let screen = msg_send()(screens, selector("objectAtIndex:"), i as NSUInteger);
let screen = msg_send![screens, objectAtIndex:i as NSUInteger];
let device_description = NSScreen::deviceDescription(screen);
let value = msg_send()(device_description, selector("objectForKey:"), *key);
let value = msg_send![device_description, objectForKey:*key];
if value != nil {
let screen_number: NSUInteger = msg_send()(value, selector("unsignedIntValue"));
let screen_number: NSUInteger = msg_send![value, unsignedIntValue];
if screen_number as u32 == native_id {
matching_screen = Some(screen);
break;
@ -605,7 +574,7 @@ impl Window {
}
pub unsafe fn make_current(&self) {
let _: id = msg_send()(*self.context, selector("update"));
let _: id = msg_send![*self.context, update];
self.context.makeCurrentContext();
}
@ -613,7 +582,7 @@ impl Window {
unsafe {
let current = NSOpenGLContext::currentContext(nil);
if current != nil {
let is_equal: bool = msg_send()(current, selector("isEqual:"), *self.context);
let is_equal: bool = msg_send![current, isEqual:*self.context];
is_equal
} else {
false
@ -683,9 +652,12 @@ impl Window {
MouseCursor::Move | MouseCursor::AllScroll | MouseCursor::ZoomIn |
MouseCursor::ZoomOut => "arrowCursor",
};
let sel = Sel::register(cursor_name);
let cls = Class::get("NSCursor").unwrap();
unsafe {
let cursor : id = msg_send()(class("NSCursor"), selector(cursor_name));
let _ : id = msg_send()(cursor, selector("set"));
use objc::MessageArguments;
let cursor: id = ().send(cls as *const _ as id, sel);
let _: id = msg_send![cursor, set];
}
}
@ -709,7 +681,7 @@ impl IdRef {
fn retain(i: id) -> IdRef {
if i != nil {
unsafe { msg_send::<()>()(i, selector("retain")) };
unsafe { msg_send![i, retain] }
}
IdRef(i)
}
@ -722,7 +694,7 @@ impl IdRef {
impl Drop for IdRef {
fn drop(&mut self) {
if self.0 != nil {
unsafe { msg_send::<()>()(self.0, selector("release")) };
unsafe { msg_send![self.0, release] }
}
}
}
@ -737,17 +709,17 @@ impl Deref for IdRef {
impl Clone for IdRef {
fn clone(&self) -> IdRef {
if self.0 != nil {
unsafe { msg_send::<()>()(self.0, selector("retain")) };
unsafe { msg_send![self.0, retain] }
}
IdRef(self.0)
}
fn clone_from(&mut self, source: &IdRef) {
if source.0 != nil {
unsafe { msg_send::<()>()(source.0, selector("retain")) };
unsafe { msg_send![source.0, retain] }
}
if self.0 != nil {
unsafe { msg_send::<()>()(self.0, selector("release")) };
unsafe { msg_send![self.0, release] }
}
self.0 = source.0;
}

View file

@ -38,6 +38,9 @@ extern crate gdi32_sys as gdi32;
#[cfg(target_os = "windows")]
extern crate user32_sys as user32;
#[cfg(target_os = "macos")]
#[macro_use]
extern crate objc;
#[cfg(target_os = "macos")]
extern crate cocoa;
#[cfg(target_os = "macos")]
extern crate core_foundation;