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handle retain/release on cocoa objects

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This commit is contained in:
Ryan Stewart 2015-03-16 13:51:15 -07:00
parent b4f8c3b959
commit 0fa5e541e8
1 changed files with 92 additions and 42 deletions
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134
src/cocoa/mod.rs
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@ -29,6 +29,7 @@ use std::str::FromStr;
use std::str::from_utf8; use std::str::from_utf8;
use std::sync::Mutex; use std::sync::Mutex;
use std::ascii::AsciiExt; use std::ascii::AsciiExt;
use std::ops::Deref;
use events::Event::{MouseInput, MouseMoved, ReceivedCharacter, KeyboardInput, MouseWheel}; use events::Event::{MouseInput, MouseMoved, ReceivedCharacter, KeyboardInput, MouseWheel};
use events::ElementState::{Pressed, Released}; use events::ElementState::{Pressed, Released};
@ -50,9 +51,9 @@ static mut alt_pressed: bool = false;
struct DelegateState { struct DelegateState {
is_closed: bool, is_closed: bool,
context: id, context: IdRef,
view: id, view: IdRef,
window: id, window: IdRef,
handler: Option<fn(u32, u32)>, handler: Option<fn(u32, u32)>,
} }
@ -89,11 +90,11 @@ impl WindowDelegate {
let state = &mut *delegate.get_state(); let state = &mut *delegate.get_state();
mem::forget(delegate); mem::forget(delegate);
let _: id = msg_send()(state.context, selector("update")); let _: id = msg_send()(*state.context, selector("update"));
if let Some(handler) = state.handler { if let Some(handler) = state.handler {
let rect = NSView::frame(state.view); let rect = NSView::frame(*state.view);
let scale_factor = NSWindow::backingScaleFactor(state.window) as f32; let scale_factor = NSWindow::backingScaleFactor(*state.window) as f32;
(handler)((scale_factor * rect.size.width as f32) as u32, (handler)((scale_factor * rect.size.width as f32) as u32,
(scale_factor * rect.size.height as f32) as u32); (scale_factor * rect.size.height as f32) as u32);
} }
@ -160,9 +161,9 @@ impl WindowDelegate {
} }
pub struct Window { pub struct Window {
view: id, view: IdRef,
window: id, window: IdRef,
context: id, context: IdRef,
delegate: WindowDelegate, delegate: WindowDelegate,
resize: Option<fn(u32, u32)>, resize: Option<fn(u32, u32)>,
@ -221,9 +222,9 @@ impl<'a> Iterator for PollEventsIterator<'a> {
// to the user application, by passing handler through to the delegate state. // to the user application, by passing handler through to the delegate state.
let mut ds = DelegateState { let mut ds = DelegateState {
is_closed: self.window.is_closed.get(), is_closed: self.window.is_closed.get(),
context: self.window.context, context: self.window.context.clone(),
window: self.window.window, window: self.window.window.clone(),
view: self.window.view, view: self.window.view.clone(),
handler: self.window.resize, handler: self.window.resize,
}; };
self.window.delegate.set_state(&mut ds); self.window.delegate.set_state(&mut ds);
@ -249,7 +250,7 @@ impl<'a> Iterator for PollEventsIterator<'a> {
} else { } else {
self.window.view.convertPoint_fromView_(window_point, nil) self.window.view.convertPoint_fromView_(window_point, nil)
}; };
let view_rect = NSView::frame(self.window.view); let view_rect = NSView::frame(*self.window.view);
let scale_factor = self.window.hidpi_factor(); let scale_factor = self.window.hidpi_factor();
Some(MouseMoved(((scale_factor * view_point.x as f32) as i32, Some(MouseMoved(((scale_factor * view_point.x as f32) as i32,
(scale_factor * (view_rect.size.height - view_point.y) as f32) as i32))) (scale_factor * (view_rect.size.height - view_point.y) as f32) as i32)))
@ -356,12 +357,12 @@ impl Window {
Some(window) => window, Some(window) => window,
None => { return Err(OsError(format!("Couldn't create NSWindow"))); }, None => { return Err(OsError(format!("Couldn't create NSWindow"))); },
}; };
let view = match Window::create_view(window) { let view = match Window::create_view(*window) {
Some(view) => view, Some(view) => view,
None => { return Err(OsError(format!("Couldn't create NSView"))); }, None => { return Err(OsError(format!("Couldn't create NSView"))); },
}; };
let context = match Window::create_context(view, builder.vsync, builder.gl_version) { let context = match Window::create_context(*view, builder.vsync, builder.gl_version) {
Some(context) => context, Some(context) => context,
None => { return Err(OsError(format!("Couldn't create OpenGL context"))); }, None => { return Err(OsError(format!("Couldn't create OpenGL context"))); },
}; };
@ -375,11 +376,12 @@ impl Window {
} }
} }
let window_id = *window;
let window = Window { let window = Window {
view: view, view: view,
window: window, window: window,
context: context, context: context,
delegate: WindowDelegate::new(window), delegate: WindowDelegate::new(window_id),
resize: None, resize: None,
is_closed: Cell::new(false), is_closed: Cell::new(false),
@ -402,7 +404,7 @@ impl Window {
} }
} }
fn create_window(dimensions: (u32, u32), title: &str, monitor: Option<MonitorID>) -> Option<id> { fn create_window(dimensions: (u32, u32), title: &str, monitor: Option<MonitorID>) -> Option<IdRef> {
unsafe { unsafe {
let frame = if monitor.is_some() { let frame = if monitor.is_some() {
let screen = NSScreen::mainScreen(nil); let screen = NSScreen::mainScreen(nil);
@ -421,18 +423,18 @@ impl Window {
NSResizableWindowMask as NSUInteger NSResizableWindowMask as NSUInteger
}; };
let window = NSWindow::alloc(nil).initWithContentRect_styleMask_backing_defer_( let window = IdRef::new(NSWindow::alloc(nil).initWithContentRect_styleMask_backing_defer_(
frame, frame,
masks, masks,
NSBackingStoreBuffered, NSBackingStoreBuffered,
NO, NO,
); ));
if window == nil { if *window == nil {
None None
} else { } else {
let title = NSString::alloc(nil).init_str(title); let title = IdRef::new(NSString::alloc(nil).init_str(title));
window.setTitle_(title); window.setTitle_(*title);
window.setAcceptsMouseMovedEvents_(YES); window.setAcceptsMouseMovedEvents_(YES);
if monitor.is_some() { if monitor.is_some() {
window.setLevel_(NSMainMenuWindowLevel as i64 + 1); window.setLevel_(NSMainMenuWindowLevel as i64 + 1);
@ -445,20 +447,20 @@ impl Window {
} }
} }
fn create_view(window: id) -> Option<id> { fn create_view(window: id) -> Option<IdRef> {
unsafe { unsafe {
let view = NSView::alloc(nil).init(); let view = IdRef::new(NSView::alloc(nil).init());
if view == nil { if *view == nil {
None None
} else { } else {
view.setWantsBestResolutionOpenGLSurface_(YES); view.setWantsBestResolutionOpenGLSurface_(YES);
window.setContentView_(view); window.setContentView_(*view);
Some(view) Some(view)
} }
} }
} }
fn create_context(view: id, vsync: bool, gl_version: GlRequest) -> Option<id> { fn create_context(view: id, vsync: bool, gl_version: GlRequest) -> Option<IdRef> {
let profile = match gl_version { let profile = match gl_version {
GlRequest::Latest => NSOpenGLProfileVersion4_1Core as u32, GlRequest::Latest => NSOpenGLProfileVersion4_1Core as u32,
GlRequest::Specific(Api::OpenGl, (1 ... 2, _)) => NSOpenGLProfileVersionLegacy as u32, GlRequest::Specific(Api::OpenGl, (1 ... 2, _)) => NSOpenGLProfileVersionLegacy as u32,
@ -483,13 +485,13 @@ impl Window {
0 0
]; ];
let pixelformat = NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes); let pixelformat = IdRef::new(NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes));
if pixelformat == nil { if *pixelformat == nil {
return None; return None;
} }
let context = NSOpenGLContext::alloc(nil).initWithFormat_shareContext_(pixelformat, nil); let context = IdRef::new(NSOpenGLContext::alloc(nil).initWithFormat_shareContext_(*pixelformat, nil));
if context == nil { if *context == nil {
None None
} else { } else {
context.setView_(view); context.setView_(view);
@ -508,22 +510,22 @@ impl Window {
pub fn set_title(&self, title: &str) { pub fn set_title(&self, title: &str) {
unsafe { unsafe {
let title = NSString::alloc(nil).init_str(title); let title = IdRef::new(NSString::alloc(nil).init_str(title));
self.window.setTitle_(title); self.window.setTitle_(*title);
} }
} }
pub fn show(&self) { pub fn show(&self) {
unsafe { NSWindow::makeKeyAndOrderFront_(self.window, nil); } unsafe { NSWindow::makeKeyAndOrderFront_(*self.window, nil); }
} }
pub fn hide(&self) { pub fn hide(&self) {
unsafe { NSWindow::orderOut_(self.window, nil); } unsafe { NSWindow::orderOut_(*self.window, nil); }
} }
pub fn get_position(&self) -> Option<(i32, i32)> { pub fn get_position(&self) -> Option<(i32, i32)> {
unsafe { unsafe {
let content_rect = NSWindow::contentRectForFrameRect_(self.window, NSWindow::frame(self.window)); let content_rect = NSWindow::contentRectForFrameRect_(*self.window, NSWindow::frame(*self.window));
// NOTE: coordinate system might be inconsistent with other backends // NOTE: coordinate system might be inconsistent with other backends
Some((content_rect.origin.x as i32, content_rect.origin.y as i32)) Some((content_rect.origin.x as i32, content_rect.origin.y as i32))
} }
@ -532,27 +534,27 @@ impl Window {
pub fn set_position(&self, x: i32, y: i32) { pub fn set_position(&self, x: i32, y: i32) {
unsafe { unsafe {
// NOTE: coordinate system might be inconsistent with other backends // NOTE: coordinate system might be inconsistent with other backends
NSWindow::setFrameOrigin_(self.window, NSPoint::new(x as f64, y as f64)); NSWindow::setFrameOrigin_(*self.window, NSPoint::new(x as f64, y as f64));
} }
} }
pub fn get_inner_size(&self) -> Option<(u32, u32)> { pub fn get_inner_size(&self) -> Option<(u32, u32)> {
unsafe { unsafe {
let view_frame = NSView::frame(self.view); let view_frame = NSView::frame(*self.view);
Some((view_frame.size.width as u32, view_frame.size.height as u32)) Some((view_frame.size.width as u32, view_frame.size.height as u32))
} }
} }
pub fn get_outer_size(&self) -> Option<(u32, u32)> { pub fn get_outer_size(&self) -> Option<(u32, u32)> {
unsafe { unsafe {
let window_frame = NSWindow::frame(self.window); let window_frame = NSWindow::frame(*self.window);
Some((window_frame.size.width as u32, window_frame.size.height as u32)) Some((window_frame.size.width as u32, window_frame.size.height as u32))
} }
} }
pub fn set_inner_size(&self, width: u32, height: u32) { pub fn set_inner_size(&self, width: u32, height: u32) {
unsafe { unsafe {
NSWindow::setContentSize_(self.window, NSSize::new(width as f64, height as f64)); NSWindow::setContentSize_(*self.window, NSSize::new(width as f64, height as f64));
} }
} }
@ -583,7 +585,7 @@ impl Window {
} }
pub unsafe fn make_current(&self) { pub unsafe fn make_current(&self) {
let _: id = msg_send()(self.context, selector("update")); let _: id = msg_send()(*self.context, selector("update"));
self.context.makeCurrentContext(); self.context.makeCurrentContext();
} }
@ -661,7 +663,7 @@ impl Window {
pub fn hidpi_factor(&self) -> f32 { pub fn hidpi_factor(&self) -> f32 {
unsafe { unsafe {
NSWindow::backingScaleFactor(self.window) as f32 NSWindow::backingScaleFactor(*self.window) as f32
} }
} }
@ -669,3 +671,51 @@ impl Window {
unimplemented!(); unimplemented!();
} }
} }
struct IdRef(id);
impl IdRef {
fn new(i: id) -> IdRef {
IdRef(i)
}
fn retain(i: id) -> IdRef {
unsafe { msg_send::<()>()(i, selector("retain")) };
IdRef(i)
}
}
impl Drop for IdRef {
fn drop(&mut self) {
if self.0 != nil {
unsafe { msg_send::<()>()(self.0, selector("release")) };
}
}
}
impl Deref for IdRef {
type Target = id;
fn deref<'a>(&'a self) -> &'a id {
&self.0
}
}
impl Clone for IdRef {
fn clone(&self) -> IdRef {
if self.0 != nil {
unsafe { msg_send::<()>()(self.0, selector("retain")) };
}
IdRef(self.0)
}
fn clone_from(&mut self, source: &IdRef) {
if source.0 != nil {
unsafe { msg_send::<()>()(source.0, selector("retain")) };
}
if self.0 != nil {
unsafe { msg_send::<()>()(self.0, selector("release")) };
}
self.0 = source.0;
}
}