fd5e77f23e
Add hidpi_factor() support for retina displays. Fix Resize and MouseMoved events to handle retina displays. Fix inverted y position for MouseMoved events on mac. Fix initial painting on retina display.
517 lines
19 KiB
Rust
517 lines
19 KiB
Rust
#[cfg(feature = "headless")]
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pub use self::headless::HeadlessContext;
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use {CreationError, Event, MouseCursor};
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use CreationError::OsError;
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use libc;
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use BuilderAttribs;
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use cocoa::base::{id, NSUInteger, nil, objc_allocateClassPair, class, objc_registerClassPair};
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use cocoa::base::{selector, msg_send, class_addMethod, class_addIvar};
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use cocoa::base::{object_setInstanceVariable, object_getInstanceVariable};
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use cocoa::appkit;
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use cocoa::appkit::*;
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use core_foundation::base::TCFType;
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use core_foundation::string::CFString;
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use core_foundation::bundle::{CFBundleGetBundleWithIdentifier, CFBundleGetFunctionPointerForName};
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use std::cell::Cell;
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use std::ffi::{CString, c_str_to_bytes};
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use std::mem;
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use std::ptr;
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use std::collections::RingBuf;
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use std::str::FromStr;
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use std::str::from_utf8;
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use std::ascii::AsciiExt;
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use events::Event::{MouseInput, MouseMoved, ReceivedCharacter, KeyboardInput, MouseWheel};
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use events::ElementState::{Pressed, Released};
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use events::MouseButton::{LeftMouseButton, RightMouseButton};
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use events;
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pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor};
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mod monitor;
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mod event;
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#[cfg(feature = "headless")]
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mod headless;
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static mut shift_pressed: bool = false;
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static mut ctrl_pressed: bool = false;
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static mut win_pressed: bool = false;
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static mut alt_pressed: bool = false;
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static DELEGATE_NAME: &'static [u8] = b"glutin_window_delegate\0";
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static DELEGATE_STATE_IVAR: &'static [u8] = b"glutin_state";
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struct DelegateState<'a> {
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is_closed: bool,
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context: id,
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view: id,
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window: id,
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handler: Option<fn(u32, u32)>,
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}
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pub struct Window {
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view: id,
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window: id,
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context: id,
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delegate: id,
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resize: Option<fn(u32, u32)>,
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is_closed: Cell<bool>,
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}
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#[cfg(feature = "window")]
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unsafe impl Send for Window {}
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#[cfg(feature = "window")]
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unsafe impl Sync for Window {}
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#[cfg(feature = "window")]
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#[derive(Clone)]
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pub struct WindowProxy;
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impl WindowProxy {
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pub fn wakeup_event_loop(&self) {
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unsafe {
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let pool = NSAutoreleasePool::new(nil);
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let event =
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NSEvent::otherEventWithType_location_modifierFlags_timestamp_windowNumber_context_subtype_data1_data2(
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nil,
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NSApplicationDefined,
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NSPoint::new(0.0, 0.0),
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0,
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0.0,
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0,
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ptr::null_mut(),
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0,
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0,
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0);
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NSApp().postEvent_atStart_(event, true);
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pool.drain();
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}
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}
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}
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extern fn window_should_close(this: id, _: id) -> id {
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unsafe {
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let mut stored_value = ptr::null_mut();
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object_getInstanceVariable(this, DELEGATE_STATE_IVAR.as_ptr() as *const i8, &mut stored_value);
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let state = stored_value as *mut DelegateState;
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(*state).is_closed = true;
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}
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0
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}
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extern fn window_did_resize(this: id, _: id) -> id {
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unsafe {
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let mut stored_value = ptr::null_mut();
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object_getInstanceVariable(this, DELEGATE_STATE_IVAR.as_ptr() as *const i8, &mut stored_value);
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let state = &mut *(stored_value as *mut DelegateState);
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let _: id = msg_send()(state.context, selector("update"));
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match state.handler {
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Some(handler) => {
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let rect = NSView::frame(state.view);
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let scale_factor = state.window.backingScaleFactor() as f32;
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(handler)((scale_factor * rect.size.width as f32) as u32, (scale_factor * rect.size.height as f32) as u32);
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}
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None => {}
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}
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}
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0
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}
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impl Window {
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#[cfg(feature = "window")]
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pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> {
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if builder.sharing.is_some() {
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unimplemented!()
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}
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let app = match Window::create_app() {
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Some(app) => app,
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None => { return Err(OsError(format!("Couldn't create NSApplication"))); },
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};
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let window = match Window::create_window(builder.dimensions.unwrap_or((800, 600)),
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&*builder.title,
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builder.monitor)
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{
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Some(window) => window,
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None => { return Err(OsError(format!("Couldn't create NSWindow"))); },
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};
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let view = match Window::create_view(window) {
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Some(view) => view,
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None => { return Err(OsError(format!("Couldn't create NSView"))); },
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};
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let context = match Window::create_context(view, builder.vsync, builder.gl_version) {
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Some(context) => context,
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None => { return Err(OsError(format!("Couldn't create OpenGL context"))); },
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};
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unsafe {
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app.activateIgnoringOtherApps_(true);
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if builder.visible {
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window.makeKeyAndOrderFront_(nil);
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} else {
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window.makeKeyWindow();
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}
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}
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// Set up the window delegate to receive events
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let ptr_size = mem::size_of::<libc::intptr_t>() as u64;
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let ns_object = class("NSObject");
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let delegate = unsafe {
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// Create a delegate class, add callback methods and store InternalState as user data.
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let delegate = objc_allocateClassPair(ns_object, DELEGATE_NAME.as_ptr() as *const i8, 0);
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class_addMethod(delegate, selector("windowShouldClose:"), window_should_close, CString::from_slice("B@:@".as_bytes()).as_ptr());
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class_addMethod(delegate, selector("windowDidResize:"), window_did_resize, CString::from_slice("V@:@".as_bytes()).as_ptr());
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class_addIvar(delegate, DELEGATE_STATE_IVAR.as_ptr() as *const i8, ptr_size, 3, CString::from_slice("?".as_bytes()).as_ptr());
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objc_registerClassPair(delegate);
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let del_obj = msg_send()(delegate, selector("alloc"));
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let del_obj: id = msg_send()(del_obj, selector("init"));
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let _: id = msg_send()(window, selector("setDelegate:"), del_obj);
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del_obj
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};
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let window = Window {
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view: view,
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window: window,
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context: context,
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delegate: delegate,
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resize: None,
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is_closed: Cell::new(false),
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};
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Ok(window)
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}
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fn create_app() -> Option<id> {
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unsafe {
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let app = NSApp();
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if app == nil {
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None
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} else {
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app.setActivationPolicy_(NSApplicationActivationPolicyRegular);
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app.finishLaunching();
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Some(app)
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}
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}
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}
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fn create_window(dimensions: (u32, u32), title: &str, monitor: Option<MonitorID>) -> Option<id> {
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unsafe {
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let frame = if monitor.is_some() {
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let screen = NSScreen::mainScreen(nil);
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NSScreen::frame(screen)
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} else {
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let (width, height) = dimensions;
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NSRect::new(NSPoint::new(0., 0.), NSSize::new(width as f64, height as f64))
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};
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let masks = if monitor.is_some() {
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NSBorderlessWindowMask as NSUInteger
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} else {
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NSTitledWindowMask as NSUInteger |
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NSClosableWindowMask as NSUInteger |
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NSMiniaturizableWindowMask as NSUInteger |
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NSResizableWindowMask as NSUInteger
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};
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let window = NSWindow::alloc(nil).initWithContentRect_styleMask_backing_defer_(
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frame,
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masks,
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NSBackingStoreBuffered,
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false,
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);
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if window == nil {
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None
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} else {
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let title = NSString::alloc(nil).init_str(title);
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window.setTitle_(title);
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window.setAcceptsMouseMovedEvents_(true);
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if monitor.is_some() {
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window.setLevel_(NSMainMenuWindowLevel as i64 + 1);
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}
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else {
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window.center();
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}
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Some(window)
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}
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}
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}
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fn create_view(window: id) -> Option<id> {
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unsafe {
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let view = NSView::alloc(nil).init();
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if view == nil {
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None
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} else {
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view.setWantsBestResolutionOpenGLSurface_(true);
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window.setContentView_(view);
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Some(view)
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}
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}
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}
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fn create_context(view: id, vsync: bool, gl_version: Option<(u32, u32)>) -> Option<id> {
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let profile = match gl_version {
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None | Some((0...2, _)) | Some((3, 0)) => NSOpenGLProfileVersionLegacy as u32,
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Some((3, 1...2)) => NSOpenGLProfileVersion3_2Core as u32,
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Some((_, _)) => NSOpenGLProfileVersion4_1Core as u32,
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};
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unsafe {
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let attributes = [
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NSOpenGLPFADoubleBuffer as u32,
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NSOpenGLPFAClosestPolicy as u32,
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NSOpenGLPFAColorSize as u32, 24,
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NSOpenGLPFAAlphaSize as u32, 8,
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NSOpenGLPFADepthSize as u32, 24,
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NSOpenGLPFAStencilSize as u32, 8,
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NSOpenGLPFAOpenGLProfile as u32, profile,
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0
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];
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let pixelformat = NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes);
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if pixelformat == nil {
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return None;
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}
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let context = NSOpenGLContext::alloc(nil).initWithFormat_shareContext_(pixelformat, nil);
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if context == nil {
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None
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} else {
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context.setView_(view);
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if vsync {
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let value = 1;
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context.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval);
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}
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Some(context)
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}
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}
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}
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pub fn is_closed(&self) -> bool {
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self.is_closed.get()
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}
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pub fn set_title(&self, title: &str) {
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unsafe {
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let title = NSString::alloc(nil).init_str(title);
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self.window.setTitle_(title);
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}
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}
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pub fn show(&self) {
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}
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pub fn hide(&self) {
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}
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pub fn get_position(&self) -> Option<(i32, i32)> {
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unimplemented!()
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}
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pub fn set_position(&self, _x: i32, _y: i32) {
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unimplemented!()
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}
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pub fn get_inner_size(&self) -> Option<(u32, u32)> {
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let rect = unsafe { NSView::frame(self.view) };
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Some((rect.size.width as u32, rect.size.height as u32))
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}
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pub fn get_outer_size(&self) -> Option<(u32, u32)> {
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unimplemented!()
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}
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pub fn set_inner_size(&self, _x: u32, _y: u32) {
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unimplemented!()
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}
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pub fn create_window_proxy(&self) -> WindowProxy {
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WindowProxy
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}
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pub fn poll_events(&self) -> RingBuf<Event> {
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let mut events = RingBuf::new();
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loop {
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unsafe {
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let event = NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
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NSAnyEventMask as u64,
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NSDate::distantPast(nil),
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NSDefaultRunLoopMode,
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true);
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if event == nil { break; }
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{
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// Create a temporary structure with state that delegates called internally
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// by sendEvent can read and modify. When that returns, update window state.
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// This allows the synchronous resize loop to continue issuing callbacks
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// to the user application, by passing handler through to the delegate state.
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let mut ds = DelegateState {
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is_closed: self.is_closed.get(),
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context: self.context,
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window: self.window,
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view: self.view,
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handler: self.resize,
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};
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object_setInstanceVariable(self.delegate,
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DELEGATE_STATE_IVAR.as_ptr() as *const i8,
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&mut ds as *mut DelegateState as *mut libc::c_void);
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NSApp().sendEvent_(event);
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object_setInstanceVariable(self.delegate,
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DELEGATE_STATE_IVAR.as_ptr() as *const i8,
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ptr::null_mut());
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self.is_closed.set(ds.is_closed);
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}
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match event.get_type() {
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NSLeftMouseDown => { events.push_back(MouseInput(Pressed, LeftMouseButton)); },
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NSLeftMouseUp => { events.push_back(MouseInput(Released, LeftMouseButton)); },
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NSRightMouseDown => { events.push_back(MouseInput(Pressed, RightMouseButton)); },
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NSRightMouseUp => { events.push_back(MouseInput(Released, RightMouseButton)); },
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NSMouseMoved => {
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let window_point = event.locationInWindow();
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let window: id = msg_send()(event, selector("window"));
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let view_point = if window == 0 {
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let window_rect = self.window.convertRectFromScreen_(NSRect::new(window_point, NSSize::new(0.0, 0.0)));
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self.view.convertPoint_fromView_(window_rect.origin, nil)
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} else {
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self.view.convertPoint_fromView_(window_point, nil)
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};
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let view_rect = NSView::frame(self.view);
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let scale_factor = self.hidpi_factor();
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events.push_back(MouseMoved(((scale_factor * view_point.x as f32) as i32,
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(scale_factor * (view_rect.size.height - view_point.y) as f32) as i32)));
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},
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NSKeyDown => {
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let received_c_str = event.characters().UTF8String();
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let received_str = CString::from_slice(c_str_to_bytes(&received_c_str));
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for received_char in from_utf8(received_str.as_bytes()).unwrap().chars() {
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if received_char.is_ascii() {
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events.push_back(ReceivedCharacter(received_char));
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}
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}
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let vkey = event::vkeycode_to_element(event.keycode());
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events.push_back(KeyboardInput(Pressed, event.keycode() as u8, vkey));
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},
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NSKeyUp => {
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let vkey = event::vkeycode_to_element(event.keycode());
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events.push_back(KeyboardInput(Released, event.keycode() as u8, vkey));
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},
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NSFlagsChanged => {
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let shift_modifier = Window::modifier_event(event, appkit::NSShiftKeyMask as u64, events::VirtualKeyCode::LShift, shift_pressed);
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if shift_modifier.is_some() {
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shift_pressed = !shift_pressed;
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events.push_back(shift_modifier.unwrap());
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}
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let ctrl_modifier = Window::modifier_event(event, appkit::NSControlKeyMask as u64, events::VirtualKeyCode::LControl, ctrl_pressed);
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if ctrl_modifier.is_some() {
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ctrl_pressed = !ctrl_pressed;
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events.push_back(ctrl_modifier.unwrap());
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}
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let win_modifier = Window::modifier_event(event, appkit::NSCommandKeyMask as u64, events::VirtualKeyCode::LWin, win_pressed);
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if win_modifier.is_some() {
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win_pressed = !win_pressed;
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events.push_back(win_modifier.unwrap());
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}
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let alt_modifier = Window::modifier_event(event, appkit::NSAlternateKeyMask as u64, events::VirtualKeyCode::LAlt, alt_pressed);
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if alt_modifier.is_some() {
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alt_pressed = !alt_pressed;
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events.push_back(alt_modifier.unwrap());
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}
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},
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NSScrollWheel => { events.push_back(MouseWheel(-event.scrollingDeltaY() as i32)); },
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NSOtherMouseDown => { },
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NSOtherMouseUp => { },
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NSOtherMouseDragged => { },
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_ => { },
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}
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}
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}
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events
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}
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unsafe fn modifier_event(event: id, keymask: u64, key: events::VirtualKeyCode, key_pressed: bool) -> Option<Event> {
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if !key_pressed && Window::modifier_key_pressed(event, keymask) {
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return Some(KeyboardInput(Pressed, event.keycode() as u8, Some(key)));
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}
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else if key_pressed && !Window::modifier_key_pressed(event, keymask) {
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return Some(KeyboardInput(Released, event.keycode() as u8, Some(key)));
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}
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return None;
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}
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unsafe fn modifier_key_pressed(event: id, modifier: u64) -> bool {
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event.modifierFlags() & modifier != 0
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}
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pub fn wait_events(&self) -> RingBuf<Event> {
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unsafe {
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let event = NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
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NSAnyEventMask as u64,
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NSDate::distantFuture(nil),
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NSDefaultRunLoopMode,
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false);
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NSApp().sendEvent_(event);
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self.poll_events()
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}
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}
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pub unsafe fn make_current(&self) {
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let _: id = msg_send()(self.context, selector("update"));
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self.context.makeCurrentContext();
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}
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pub fn get_proc_address(&self, _addr: &str) -> *const () {
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let symbol_name: CFString = FromStr::from_str(_addr).unwrap();
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let framework_name: CFString = FromStr::from_str("com.apple.opengl").unwrap();
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let framework = unsafe {
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CFBundleGetBundleWithIdentifier(framework_name.as_concrete_TypeRef())
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};
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let symbol = unsafe {
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CFBundleGetFunctionPointerForName(framework, symbol_name.as_concrete_TypeRef())
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};
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symbol as *const ()
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}
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pub fn swap_buffers(&self) {
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unsafe { self.context.flushBuffer(); }
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}
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pub fn platform_display(&self) -> *mut libc::c_void {
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unimplemented!()
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}
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pub fn get_api(&self) -> ::Api {
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::Api::OpenGl
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|
}
|
|
|
|
pub fn set_window_resize_callback(&mut self, callback: Option<fn(u32, u32)>) {
|
|
self.resize = callback;
|
|
}
|
|
|
|
pub fn set_cursor(&self, cursor: MouseCursor) {
|
|
unimplemented!()
|
|
}
|
|
|
|
pub fn hidpi_factor(&self) -> f32 {
|
|
unsafe {
|
|
self.window.backingScaleFactor() as f32
|
|
}
|
|
}
|
|
}
|