diff options
Diffstat (limited to 'src/x11/window/mod.rs')
| -rw-r--r-- | src/x11/window/mod.rs | 885 |
1 files changed, 0 insertions, 885 deletions
diff --git a/src/x11/window/mod.rs b/src/x11/window/mod.rs deleted file mode 100644 index 80338c7..0000000 --- a/src/x11/window/mod.rs +++ /dev/null @@ -1,885 +0,0 @@ -use {Event, BuilderAttribs, MouseCursor}; -use CreationError; -use CreationError::OsError; -use libc; -use std::{mem, ptr}; -use std::cell::Cell; -use std::sync::atomic::AtomicBool; -use std::collections::VecDeque; -use super::ffi; -use std::sync::{Arc, Mutex, Once, ONCE_INIT}; - -use Api; -use CursorState; -use GlRequest; -use PixelFormat; - -pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor}; - -mod events; -mod monitor; - -static THREAD_INIT: Once = ONCE_INIT; - -// XOpenIM doesn't seem to be thread-safe -lazy_static! { // TODO: use a static mutex when that's possible, and put me back in my function - static ref GLOBAL_XOPENIM_LOCK: Mutex<()> = Mutex::new(()); -} - -unsafe extern "C" fn x_error_callback(_: *mut ffi::Display, event: *mut ffi::XErrorEvent) -> libc::c_int { - println!("[glutin] x error code={} major={} minor={}!", (*event).error_code, (*event).request_code, (*event).minor_code); - 0 -} - -fn ensure_thread_init() { - THREAD_INIT.call_once(|| { - unsafe { - ffi::XInitThreads(); - ffi::XSetErrorHandler(Some(x_error_callback)); - } - }); -} - -fn with_c_str<F, T>(s: &str, f: F) -> T where F: FnOnce(*const libc::c_char) -> T { - use std::ffi::CString; - let c_str = CString::new(s.as_bytes().to_vec()).unwrap(); - f(c_str.as_ptr()) -} - -struct XWindow { - display: *mut ffi::Display, - window: ffi::Window, - context: ffi::GLXContext, - is_fullscreen: bool, - screen_id: libc::c_int, - xf86_desk_mode: *mut ffi::XF86VidModeModeInfo, - ic: ffi::XIC, - im: ffi::XIM, -} - -unsafe impl Send for XWindow {} -unsafe impl Sync for XWindow {} - -unsafe impl Send for Window {} -unsafe impl Sync for Window {} - -impl Drop for XWindow { - fn drop(&mut self) { - unsafe { - // we don't call MakeCurrent(0, 0) because we are not sure that the context - // is still the current one - ffi::glx::DestroyContext(self.display as *mut _, self.context); - - if self.is_fullscreen { - ffi::XF86VidModeSwitchToMode(self.display, self.screen_id, self.xf86_desk_mode); - ffi::XF86VidModeSetViewPort(self.display, self.screen_id, 0, 0); - } - - ffi::XDestroyIC(self.ic); - ffi::XCloseIM(self.im); - ffi::XDestroyWindow(self.display, self.window); - ffi::XCloseDisplay(self.display); - } - } -} - -#[derive(Clone)] -pub struct WindowProxy { - x: Arc<XWindow>, -} - -impl WindowProxy { - pub fn wakeup_event_loop(&self) { - let mut xev = ffi::XClientMessageEvent { - type_: ffi::ClientMessage, - window: self.x.window, - format: 32, - message_type: 0, - serial: 0, - send_event: 0, - display: self.x.display, - data: unsafe { mem::zeroed() }, - }; - - unsafe { - ffi::XSendEvent(self.x.display, self.x.window, 0, 0, mem::transmute(&mut xev)); - ffi::XFlush(self.x.display); - } - } -} - -pub struct PollEventsIterator<'a> { - window: &'a Window, -} - -impl<'a> Iterator for PollEventsIterator<'a> { - type Item = Event; - - fn next(&mut self) -> Option<Event> { - if let Some(ev) = self.window.pending_events.lock().unwrap().pop_front() { - return Some(ev); - } - - loop { - let mut xev = unsafe { mem::uninitialized() }; - let res = unsafe { ffi::XCheckMaskEvent(self.window.x.display, -1, &mut xev) }; - - if res == 0 { - let res = unsafe { ffi::XCheckTypedEvent(self.window.x.display, ffi::ClientMessage, &mut xev) }; - - if res == 0 { - return None; - } - } - - match xev.get_type() { - ffi::KeymapNotify => { - unsafe { ffi::XRefreshKeyboardMapping(mem::transmute(&xev)); } - }, - - ffi::ClientMessage => { - use events::Event::{Closed, Awakened}; - use std::sync::atomic::Ordering::Relaxed; - - let client_msg: &ffi::XClientMessageEvent = unsafe { mem::transmute(&xev) }; - - if client_msg.data.get_long(0) == self.window.wm_delete_window as libc::c_long { - self.window.is_closed.store(true, Relaxed); - return Some(Closed); - } else { - return Some(Awakened); - } - }, - - ffi::ConfigureNotify => { - use events::Event::Resized; - let cfg_event: &ffi::XConfigureEvent = unsafe { mem::transmute(&xev) }; - let (current_width, current_height) = self.window.current_size.get(); - if current_width != cfg_event.width || current_height != cfg_event.height { - self.window.current_size.set((cfg_event.width, cfg_event.height)); - return Some(Resized(cfg_event.width as u32, cfg_event.height as u32)); - } - }, - - ffi::Expose => { - use events::Event::Refresh; - return Some(Refresh); - }, - - ffi::MotionNotify => { - use events::Event::MouseMoved; - let event: &ffi::XMotionEvent = unsafe { mem::transmute(&xev) }; - return Some(MouseMoved((event.x as i32, event.y as i32))); - }, - - ffi::KeyPress | ffi::KeyRelease => { - use events::Event::{KeyboardInput, ReceivedCharacter}; - use events::ElementState::{Pressed, Released}; - let event: &mut ffi::XKeyEvent = unsafe { mem::transmute(&xev) }; - - if event.type_ == ffi::KeyPress { - let raw_ev: *mut ffi::XKeyEvent = event; - unsafe { ffi::XFilterEvent(mem::transmute(raw_ev), self.window.x.window) }; - } - - let state = if xev.get_type() == ffi::KeyPress { Pressed } else { Released }; - - let written = unsafe { - use std::str; - - let mut buffer: [u8; 16] = [mem::uninitialized(); 16]; - let raw_ev: *mut ffi::XKeyEvent = event; - let count = ffi::Xutf8LookupString(self.window.x.ic, mem::transmute(raw_ev), - mem::transmute(buffer.as_mut_ptr()), - buffer.len() as libc::c_int, ptr::null_mut(), ptr::null_mut()); - - str::from_utf8(&buffer[..count as usize]).unwrap_or("").to_string() - }; - - { - let mut pending = self.window.pending_events.lock().unwrap(); - for chr in written.chars() { - pending.push_back(ReceivedCharacter(chr)); - } - } - - let keysym = unsafe { - ffi::XKeycodeToKeysym(self.window.x.display, event.keycode as ffi::KeyCode, 0) - }; - - let vkey = events::keycode_to_element(keysym as libc::c_uint); - - return Some(KeyboardInput(state, event.keycode as u8, vkey)); - }, - - ffi::ButtonPress | ffi::ButtonRelease => { - use events::Event::{MouseInput, MouseWheel}; - use events::ElementState::{Pressed, Released}; - use events::MouseButton::{Left, Right, Middle}; - - let event: &ffi::XButtonEvent = unsafe { mem::transmute(&xev) }; - - let state = if xev.get_type() == ffi::ButtonPress { Pressed } else { Released }; - - let button = match event.button { - ffi::Button1 => Some(Left), - ffi::Button2 => Some(Middle), - ffi::Button3 => Some(Right), - ffi::Button4 => { - self.window.pending_events.lock().unwrap().push_back(MouseWheel(1)); - None - } - ffi::Button5 => { - self.window.pending_events.lock().unwrap().push_back(MouseWheel(-1)); - None - } - _ => None - }; - - match button { - Some(button) => - return Some(MouseInput(state, button)), - None => () - }; - }, - - _ => () - }; - } - } -} - -pub struct WaitEventsIterator<'a> { - window: &'a Window, -} - -impl<'a> Iterator for WaitEventsIterator<'a> { - type Item = Event; - - fn next(&mut self) -> Option<Event> { - use std::mem; - - while !self.window.is_closed() { - if let Some(ev) = self.window.pending_events.lock().unwrap().pop_front() { - return Some(ev); - } - - // this will block until an event arrives, but doesn't remove - // it from the queue - let mut xev = unsafe { mem::uninitialized() }; - unsafe { ffi::XPeekEvent(self.window.x.display, &mut xev) }; - - // calling poll_events() - if let Some(ev) = self.window.poll_events().next() { - return Some(ev); - } - } - - None - } -} - -pub struct Window { - x: Arc<XWindow>, - is_closed: AtomicBool, - wm_delete_window: ffi::Atom, - current_size: Cell<(libc::c_int, libc::c_int)>, - pixel_format: PixelFormat, - /// Events that have been retreived with XLib but not dispatched with iterators yet - pending_events: Mutex<VecDeque<Event>>, - cursor_state: Mutex<CursorState>, -} - -impl Window { - pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> { - ensure_thread_init(); - let dimensions = builder.dimensions.unwrap_or((800, 600)); - - // calling XOpenDisplay - let display = unsafe { - let display = ffi::XOpenDisplay(ptr::null()); - if display.is_null() { - return Err(OsError(format!("XOpenDisplay failed"))); - } - display - }; - - let screen_id = match builder.monitor { - Some(MonitorID(monitor)) => monitor as i32, - None => unsafe { ffi::XDefaultScreen(display) }, - }; - - // getting the FBConfig - let fb_config = unsafe { - let mut visual_attributes = vec![ - ffi::glx::X_RENDERABLE as libc::c_int, 1, - ffi::glx::DRAWABLE_TYPE as libc::c_int, ffi::glx::WINDOW_BIT as libc::c_int, - ffi::glx::RENDER_TYPE as libc::c_int, ffi::glx::RGBA_BIT as libc::c_int, - ffi::glx::X_VISUAL_TYPE as libc::c_int, ffi::glx::TRUE_COLOR as libc::c_int, - ffi::glx::RED_SIZE as libc::c_int, 8, - ffi::glx::GREEN_SIZE as libc::c_int, 8, - ffi::glx::BLUE_SIZE as libc::c_int, 8, - ffi::glx::ALPHA_SIZE as libc::c_int, 8, - ffi::glx::DEPTH_SIZE as libc::c_int, 24, - ffi::glx::STENCIL_SIZE as libc::c_int, 8, - ffi::glx::DOUBLEBUFFER as libc::c_int, 1, - ]; - - if let Some(val) = builder.multisampling { - visual_attributes.push(ffi::glx::SAMPLE_BUFFERS as libc::c_int); - visual_attributes.push(1); - visual_attributes.push(ffi::glx::SAMPLES as libc::c_int); - visual_attributes.push(val as libc::c_int); - } - - if let Some(val) = builder.srgb { - visual_attributes.push(ffi::glx_extra::FRAMEBUFFER_SRGB_CAPABLE_ARB as libc::c_int); - visual_attributes.push(if val {1} else {0}); - } - - visual_attributes.push(0); - - let mut num_fb: libc::c_int = mem::uninitialized(); - - let fb = ffi::glx::ChooseFBConfig(display as *mut _, ffi::XDefaultScreen(display), - visual_attributes.as_ptr(), &mut num_fb); - if fb.is_null() { - return Err(OsError(format!("glx::ChooseFBConfig failed"))); - } - let preferred_fb = *fb; // TODO: choose more wisely - ffi::XFree(fb as *mut _); - preferred_fb - }; - - let mut best_mode = -1; - let modes = unsafe { - let mut mode_num: libc::c_int = mem::uninitialized(); - let mut modes: *mut *mut ffi::XF86VidModeModeInfo = mem::uninitialized(); - if ffi::XF86VidModeGetAllModeLines(display, screen_id, &mut mode_num, &mut modes) == 0 { - return Err(OsError(format!("Could not query the video modes"))); - } - - for i in 0..mode_num { - let mode: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); - if mode.hdisplay == dimensions.0 as u16 && mode.vdisplay == dimensions.1 as u16 { - best_mode = i; - } - }; - if best_mode == -1 && builder.monitor.is_some() { - return Err(OsError(format!("Could not find a suitable graphics mode"))); - } - - modes - }; - - let xf86_desk_mode = unsafe { - *modes.offset(0) - }; - - // getting the visual infos - let mut visual_infos: ffi::glx::types::XVisualInfo = unsafe { - let vi = ffi::glx::GetVisualFromFBConfig(display as *mut _, fb_config); - if vi.is_null() { - return Err(OsError(format!("glx::ChooseVisual failed"))); - } - let vi_copy = ptr::read(vi as *const _); - ffi::XFree(vi as *mut _); - vi_copy - }; - - // querying the chosen pixel format - let pixel_format = { - let get_attrib = |attrib: libc::c_int| -> i32 { - let mut value = 0; - unsafe { ffi::glx::GetFBConfigAttrib(display as *mut _, fb_config, attrib, &mut value); } - value - }; - - PixelFormat { - hardware_accelerated: true, - red_bits: get_attrib(ffi::glx::RED_SIZE as libc::c_int) as u8, - green_bits: get_attrib(ffi::glx::GREEN_SIZE as libc::c_int) as u8, - blue_bits: get_attrib(ffi::glx::BLUE_SIZE as libc::c_int) as u8, - alpha_bits: get_attrib(ffi::glx::ALPHA_SIZE as libc::c_int) as u8, - depth_bits: get_attrib(ffi::glx::DEPTH_SIZE as libc::c_int) as u8, - stencil_bits: get_attrib(ffi::glx::STENCIL_SIZE as libc::c_int) as u8, - stereoscopy: get_attrib(ffi::glx::STEREO as libc::c_int) != 0, - double_buffer: get_attrib(ffi::glx::DOUBLEBUFFER as libc::c_int) != 0, - multisampling: if get_attrib(ffi::glx::SAMPLE_BUFFERS as libc::c_int) != 0 { - Some(get_attrib(ffi::glx::SAMPLES as libc::c_int) as u16) - }else { None }, - srgb: get_attrib(ffi::glx_extra::FRAMEBUFFER_SRGB_CAPABLE_ARB as libc::c_int) != 0, - } - }; - - // getting the root window - let root = unsafe { ffi::XDefaultRootWindow(display) }; - - // creating the color map - let cmap = unsafe { - let cmap = ffi::XCreateColormap(display, root, - visual_infos.visual as *mut _, ffi::AllocNone); - // TODO: error checking? - cmap - }; - - // creating - let mut set_win_attr = { - let mut swa: ffi::XSetWindowAttributes = unsafe { mem::zeroed() }; - swa.colormap = cmap; - swa.event_mask = ffi::ExposureMask | ffi::StructureNotifyMask | - ffi::VisibilityChangeMask | ffi::KeyPressMask | ffi::PointerMotionMask | - ffi::KeyReleaseMask | ffi::ButtonPressMask | - ffi::ButtonReleaseMask | ffi::KeymapStateMask; - swa.border_pixel = 0; - swa.override_redirect = 0; - swa - }; - - let mut window_attributes = ffi::CWBorderPixel | ffi::CWColormap | ffi:: CWEventMask; - if builder.monitor.is_some() { - window_attributes |= ffi::CWOverrideRedirect; - unsafe { - ffi::XF86VidModeSwitchToMode(display, screen_id, *modes.offset(best_mode as isize)); - ffi::XF86VidModeSetViewPort(display, screen_id, 0, 0); - set_win_attr.override_redirect = 1; - } - } - - // finally creating the window - let window = unsafe { - let win = ffi::XCreateWindow(display, root, 0, 0, dimensions.0 as libc::c_uint, - dimensions.1 as libc::c_uint, 0, visual_infos.depth, ffi::InputOutput as libc::c_uint, - visual_infos.visual as *mut _, window_attributes, - &mut set_win_attr); - win - }; - - // set visibility - if builder.visible { - unsafe { - ffi::XMapRaised(display, window); - ffi::XFlush(display); - } - } - - // creating window, step 2 - let wm_delete_window = unsafe { - let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window| - ffi::XInternAtom(display, delete_window, 0) - ); - ffi::XSetWMProtocols(display, window, &mut wm_delete_window, 1); - with_c_str(&*builder.title, |title| {; - ffi::XStoreName(display, window, title); - }); - ffi::XFlush(display); - - wm_delete_window - }; - - // creating IM - let im = unsafe { - let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap(); - - let im = ffi::XOpenIM(display, ptr::null_mut(), ptr::null_mut(), ptr::null_mut()); - if im.is_null() { - return Err(OsError(format!("XOpenIM failed"))); - } - im - }; - - // creating input context - let ic = unsafe { - let ic = with_c_str("inputStyle", |input_style| - with_c_str("clientWindow", |client_window| - ffi::XCreateIC( - im, input_style, - ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window, - window, ptr::null::<()>() - ) - ) - ); - if ic.is_null() { - return Err(OsError(format!("XCreateIC failed"))); - } - ffi::XSetICFocus(ic); - ic - }; - - // Attempt to make keyboard input repeat detectable - unsafe { - let mut supported_ptr = ffi::False; - ffi::XkbSetDetectableAutoRepeat(display, ffi::True, &mut supported_ptr); - if supported_ptr == ffi::False { - return Err(OsError(format!("XkbSetDetectableAutoRepeat failed"))); - } - } - - // Set ICCCM WM_CLASS property based on initial window title - unsafe { - with_c_str(&*builder.title, |c_name| { - let hint = ffi::XAllocClassHint(); - (*hint).res_name = c_name as *mut i8; - (*hint).res_class = c_name as *mut i8; - ffi::XSetClassHint(display, window, hint); - ffi::XFree(hint as *mut libc::c_void); - }); - } - - // creating GL context - let (context, extra_functions) = unsafe { - let mut attributes = Vec::new(); - - match builder.gl_version { - GlRequest::Latest => {}, - GlRequest::Specific(Api::OpenGl, (major, minor)) => { - attributes.push(ffi::glx_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); - attributes.push(major as libc::c_int); - attributes.push(ffi::glx_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); - attributes.push(minor as libc::c_int); - }, - GlRequest::Specific(_, _) => panic!("Only OpenGL is supported"), - GlRequest::GlThenGles { opengl_version: (major, minor), .. } => { - attributes.push(ffi::glx_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int); - attributes.push(major as libc::c_int); - attributes.push(ffi::glx_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int); - attributes.push(minor as libc::c_int); - }, - } - - if builder.gl_debug { - attributes.push(ffi::glx_extra::CONTEXT_FLAGS_ARB as libc::c_int); - attributes.push(ffi::glx_extra::CONTEXT_DEBUG_BIT_ARB as libc::c_int); - } - - attributes.push(0); - - // loading the extra GLX functions - let extra_functions = ffi::glx_extra::Glx::load_with(|addr| { - with_c_str(addr, |s| { - use libc; - ffi::glx::GetProcAddress(s as *const u8) as *const libc::c_void - }) - }); - - let share = if let Some(win) = builder.sharing { - win.x.context - } else { - ptr::null() - }; - - let mut context = if extra_functions.CreateContextAttribsARB.is_loaded() { - extra_functions.CreateContextAttribsARB(display as *mut ffi::glx_extra::types::Display, - fb_config, share, 1, attributes.as_ptr()) - } else { - ptr::null() - }; - - if context.is_null() { - context = ffi::glx::CreateContext(display as *mut _, &mut visual_infos, share, 1) - } - - if context.is_null() { - return Err(OsError(format!("GL context creation failed"))); - } - - (context, extra_functions) - }; - - // vsync - if builder.vsync { - unsafe { ffi::glx::MakeCurrent(display as *mut _, window, context) }; - - if extra_functions.SwapIntervalEXT.is_loaded() { - // this should be the most common extension - unsafe { - extra_functions.SwapIntervalEXT(display as *mut _, window, 1); - } - - // checking that it worked - if builder.strict { - let mut swap = unsafe { mem::uninitialized() }; - unsafe { - ffi::glx::QueryDrawable(display as *mut _, window, - ffi::glx_extra::SWAP_INTERVAL_EXT as i32, - &mut swap); - } - - if swap != 1 { - return Err(OsError(format!("Couldn't setup vsync: expected \ - interval `1` but got `{}`", swap))); - } - } - - // GLX_MESA_swap_control is not official - /*} else if extra_functions.SwapIntervalMESA.is_loaded() { - unsafe { - extra_functions.SwapIntervalMESA(1); - }*/ - - } else if extra_functions.SwapIntervalSGI.is_loaded() { - unsafe { - extra_functions.SwapIntervalSGI(1); - } - - } else if builder.strict { - return Err(OsError(format!("Couldn't find any available vsync extension"))); - } - - unsafe { ffi::glx::MakeCurrent(display as *mut _, 0, ptr::null()) }; - } - - // creating the window object - let window = Window { - x: Arc::new(XWindow { - display: display, - window: window, - im: im, - ic: ic, - context: context, - screen_id: screen_id, - is_fullscreen: builder.monitor.is_some(), - xf86_desk_mode: xf86_desk_mode, - }), - is_closed: AtomicBool::new(false), - wm_delete_window: wm_delete_window, - current_size: Cell::new((0, 0)), - pixel_format: pixel_format, - pending_events: Mutex::new(VecDeque::new()), - cursor_state: Mutex::new(CursorState::Normal), - }; - - // returning - Ok(window) - } - - pub fn is_closed(&self) -> bool { - use std::sync::atomic::Ordering::Relaxed; - self.is_closed.load(Relaxed) - } - - pub fn set_title(&self, title: &str) { - with_c_str(title, |title| unsafe { - ffi::XStoreName(self.x.display, self.x.window, title); - ffi::XFlush(self.x.display); - }) - } - - pub fn show(&self) { - unsafe { - ffi::XMapRaised(self.x.display, self.x.window); - ffi::XFlush(self.x.display); - } - } - - pub fn hide(&self) { - unsafe { - ffi::XUnmapWindow(self.x.display, self.x.window); - ffi::XFlush(self.x.display); - } - } - - fn get_geometry(&self) -> Option<(i32, i32, u32, u32, u32)> { - unsafe { - use std::mem; - - let mut root: ffi::Window = mem::uninitialized(); - let mut x: libc::c_int = mem::uninitialized(); - let mut y: libc::c_int = mem::uninitialized(); - let mut width: libc::c_uint = mem::uninitialized(); - let mut height: libc::c_uint = mem::uninitialized(); - let mut border: libc::c_uint = mem::uninitialized(); - let mut depth: libc::c_uint = mem::uninitialized(); - - if ffi::XGetGeometry(self.x.display, self.x.window, - &mut root, &mut x, &mut y, &mut width, &mut height, - &mut border, &mut depth) == 0 - { - return None; - } - - Some((x as i32, y as i32, width as u32, height as u32, border as u32)) - } - } - - pub fn get_position(&self) -> Option<(i32, i32)> { - self.get_geometry().map(|(x, y, _, _, _)| (x, y)) - } - - pub fn set_position(&self, x: i32, y: i32) { - unsafe { ffi::XMoveWindow(self.x.display, self.x.window, x as libc::c_int, y as libc::c_int); } - } - - pub fn get_inner_size(&self) -> Option<(u32, u32)> { - self.get_geometry().map(|(_, _, w, h, _)| (w, h)) - } - - pub fn get_outer_size(&self) -> Option<(u32, u32)> { - self.get_geometry().map(|(_, _, w, h, b)| (w + b, h + b)) // TODO: is this really outside? - } - - pub fn set_inner_size(&self, _x: u32, _y: u32) { - unimplemented!() - } - - pub fn create_window_proxy(&self) -> WindowProxy { - WindowProxy { - x: self.x.clone() - } - } - - pub fn poll_events(&self) -> PollEventsIterator { - PollEventsIterator { - window: self - } - } - - pub fn wait_events(&self) -> WaitEventsIterator { - WaitEventsIterator { - window: self - } - } - - pub unsafe fn make_current(&self) { - let res = ffi::glx::MakeCurrent(self.x.display as *mut _, self.x.window, self.x.context); - if res == 0 { - panic!("glx::MakeCurrent failed"); - } - } - - pub fn is_current(&self) -> bool { - unsafe { ffi::glx::GetCurrentContext() == self.x.context } - } - - pub fn get_proc_address(&self, addr: &str) -> *const () { - use std::mem; - - unsafe { - with_c_str(addr, |s| { - ffi::glx::GetProcAddress(mem::transmute(s)) as *const () - }) - } - } - - pub fn swap_buffers(&self) { - unsafe { ffi::glx::SwapBuffers(self.x.display as *mut _, self.x.window) } - } - - pub fn platform_display(&self) -> *mut libc::c_void { - self.x.display as *mut libc::c_void - } - - pub fn platform_window(&self) -> *mut libc::c_void { - unimplemented!() - } - - /// See the docs in the crate root file. - pub fn get_api(&self) -> ::Api { - ::Api::OpenGl - } - - pub fn get_pixel_format(&self) -> PixelFormat { - self.pixel_format.clone() - } - - pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) { - } - - pub fn set_cursor(&self, cursor: MouseCursor) { - unsafe { - use std::ffi::CString; - let cursor_name = match cursor { - MouseCursor::Alias => "link", - MouseCursor::Arrow => "arrow", - MouseCursor::Cell => "plus", - MouseCursor::Copy => "copy", - MouseCursor::Crosshair => "crosshair", - MouseCursor::Default => "left_ptr", - MouseCursor::Grabbing => "grabbing", - MouseCursor::Hand | MouseCursor::Grab => "hand", - MouseCursor::Help => "question_arrow", - MouseCursor::Move => "move", - MouseCursor::NoDrop => "circle", - MouseCursor::NotAllowed => "crossed_circle", - MouseCursor::Progress => "left_ptr_watch", - - /// Resize cursors - MouseCursor::EResize => "right_side", - MouseCursor::NResize => "top_side", - MouseCursor::NeResize => "top_right_corner", - MouseCursor::NwResize => "top_left_corner", - MouseCursor::SResize => "bottom_side", - MouseCursor::SeResize => "bottom_right_corner", - MouseCursor::SwResize => "bottom_left_corner", - MouseCursor::WResize => "left_side", - MouseCursor::EwResize | MouseCursor::ColResize => "h_double_arrow", - MouseCursor::NsResize | MouseCursor::RowResize => "v_double_arrow", - MouseCursor::NwseResize => "bd_double_arrow", - MouseCursor::NeswResize => "fd_double_arrow", - - MouseCursor::Text | MouseCursor::VerticalText => "xterm", - MouseCursor::Wait => "watch", - - /// TODO: Find matching X11 cursors - MouseCursor::ContextMenu | MouseCursor::NoneCursor | - MouseCursor::AllScroll | MouseCursor::ZoomIn | - MouseCursor::ZoomOut => "left_ptr", - }; - let c_string = CString::new(cursor_name.as_bytes().to_vec()).unwrap(); - let xcursor = ffi::XcursorLibraryLoadCursor(self.x.display, c_string.as_ptr()); - ffi::XDefineCursor (self.x.display, self.x.window, xcursor); - ffi::XFlush(self.x.display); - } - } - - pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> { - let mut cursor_state = self.cursor_state.lock().unwrap(); - - match (state, *cursor_state) { - (CursorState::Normal, CursorState::Grab) => { - unsafe { - ffi::XUngrabPointer(self.x.display, ffi::CurrentTime); - *cursor_state = CursorState::Normal; - Ok(()) - } - }, - - (CursorState::Grab, CursorState::Normal) => { - unsafe { - *cursor_state = CursorState::Grab; - - match ffi::XGrabPointer( - self.x.display, self.x.window, ffi::False, - (ffi::ButtonPressMask | ffi::ButtonReleaseMask | ffi::EnterWindowMask | - ffi::LeaveWindowMask | ffi::PointerMotionMask | ffi::PointerMotionHintMask | - ffi::Button1MotionMask | ffi::Button2MotionMask | ffi::Button3MotionMask | - ffi::Button4MotionMask | ffi::Button5MotionMask | ffi::ButtonMotionMask | - ffi::KeymapStateMask) as libc::c_uint, - ffi::GrabModeAsync, ffi::GrabModeAsync, - self.x.window, 0, ffi::CurrentTime - ) { - ffi::GrabSuccess => Ok(()), - ffi::AlreadyGrabbed | ffi::GrabInvalidTime | - ffi::GrabNotViewable | ffi::GrabFrozen - => Err("cursor could not be grabbed".to_string()), - _ => unreachable!(), - } - } - }, - - _ => unimplemented!(), - } - } - - pub fn hidpi_factor(&self) -> f32 { - 1.0 - } - - pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> { - unsafe { - ffi::XWarpPointer(self.x.display, 0, self.x.window, 0, 0, 0, 0, x, y); - } - - Ok(()) - } -} |