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-rw-r--r--src/api/x11/window.rs803
1 files changed, 803 insertions, 0 deletions
diff --git a/src/api/x11/window.rs b/src/api/x11/window.rs
new file mode 100644
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--- /dev/null
+++ b/src/api/x11/window.rs
@@ -0,0 +1,803 @@
+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 std::sync::{Arc, Mutex};
+
+use Api;
+use CursorState;
+use GlContext;
+use GlRequest;
+use PixelFormat;
+
+use api::glx::Context as GlxContext;
+use api::egl::Context as EglContext;
+
+use platform::MonitorID as PlatformMonitorID;
+
+use super::{events, ffi};
+use super::{MonitorID, XConnection};
+
+// 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(());
+}
+
+// TODO: remove me
+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())
+}
+
+pub struct XWindow {
+ display: Arc<XConnection>,
+ window: ffi::Window,
+ pub context: Context,
+ is_fullscreen: bool,
+ screen_id: libc::c_int,
+ xf86_desk_mode: *mut ffi::XF86VidModeModeInfo,
+ ic: ffi::XIC,
+ im: ffi::XIM,
+}
+
+pub enum Context {
+ Glx(GlxContext),
+ Egl(EglContext),
+ None,
+}
+
+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
+ self.context = Context::None;
+
+ if self.is_fullscreen {
+ (self.display.xf86vmode.XF86VidModeSwitchToMode)(self.display.display, self.screen_id, self.xf86_desk_mode);
+ (self.display.xf86vmode.XF86VidModeSetViewPort)(self.display.display, self.screen_id, 0, 0);
+ }
+
+ (self.display.xlib.XDestroyIC)(self.ic);
+ (self.display.xlib.XCloseIM)(self.im);
+ (self.display.xlib.XDestroyWindow)(self.display.display, self.window);
+ }
+ }
+}
+
+#[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.display,
+ data: unsafe { mem::zeroed() },
+ };
+
+ unsafe {
+ (self.x.display.xlib.XSendEvent)(self.x.display.display, self.x.window, 0, 0, mem::transmute(&mut xev));
+ (self.x.display.xlib.XFlush)(self.x.display.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 { (self.window.x.display.xlib.XCheckMaskEvent)(self.window.x.display.display, -1, &mut xev) };
+
+ if res == 0 {
+ let res = unsafe { (self.window.x.display.xlib.XCheckTypedEvent)(self.window.x.display.display, ffi::ClientMessage, &mut xev) };
+
+ if res == 0 {
+ return None;
+ }
+ }
+
+ match xev.get_type() {
+ ffi::KeymapNotify => {
+ unsafe { (self.window.x.display.xlib.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(&mut xev) };
+
+ if event.type_ == ffi::KeyPress {
+ let raw_ev: *mut ffi::XKeyEvent = event;
+ unsafe { (self.window.x.display.xlib.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 = (self.window.x.display.xlib.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 {
+ (self.window.x.display.xlib.XKeycodeToKeysym)(self.window.x.display.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(0.0, 1.0));
+ None
+ }
+ ffi::Button5 => {
+ self.window.pending_events.lock().unwrap().push_back(MouseWheel(0.0, -1.0));
+ 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 { (self.window.x.display.xlib.XPeekEvent)(self.window.x.display.display, &mut xev) };
+
+ // calling poll_events()
+ if let Some(ev) = self.window.poll_events().next() {
+ return Some(ev);
+ }
+ }
+
+ None
+ }
+}
+
+pub struct Window {
+ pub 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(display: &Arc<XConnection>, builder: BuilderAttribs) -> Result<Window, CreationError> {
+ let dimensions = builder.dimensions.unwrap_or((800, 600));
+
+ let screen_id = match builder.monitor {
+ Some(PlatformMonitorID::X(MonitorID(_, monitor))) => monitor as i32,
+ _ => unsafe { (display.xlib.XDefaultScreen)(display.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 = display.glx.as_ref().unwrap().ChooseFBConfig(display.display as *mut _, (display.xlib.XDefaultScreen)(display.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
+ (display.xlib.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 (display.xf86vmode.XF86VidModeGetAllModeLines)(display.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 visual_infos: ffi::glx::types::XVisualInfo = unsafe {
+ let vi = display.glx.as_ref().unwrap().GetVisualFromFBConfig(display.display as *mut _, fb_config);
+ if vi.is_null() {
+ return Err(OsError(format!("glx::ChooseVisual failed")));
+ }
+ let vi_copy = ptr::read(vi as *const _);
+ (display.xlib.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 { display.glx.as_ref().unwrap().GetFBConfigAttrib(display.display as *mut _, fb_config, attrib, &mut value); }
+ value
+ };
+
+ PixelFormat {
+ hardware_accelerated: true,
+ color_bits: get_attrib(ffi::glx::RED_SIZE as libc::c_int) as u8 +
+ get_attrib(ffi::glx::GREEN_SIZE as libc::c_int) as u8 +
+ 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 { (display.xlib.XDefaultRootWindow)(display.display) };
+
+ // creating the color map
+ let cmap = unsafe {
+ let cmap = (display.xlib.XCreateColormap)(display.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 {
+ (display.xf86vmode.XF86VidModeSwitchToMode)(display.display, screen_id, *modes.offset(best_mode as isize));
+ (display.xf86vmode.XF86VidModeSetViewPort)(display.display, screen_id, 0, 0);
+ set_win_attr.override_redirect = 1;
+ }
+ }
+
+ // finally creating the window
+ let window = unsafe {
+ let win = (display.xlib.XCreateWindow)(display.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 {
+ (display.xlib.XMapRaised)(display.display, window);
+ (display.xlib.XFlush)(display.display);
+ }
+ }
+
+ // creating window, step 2
+ let wm_delete_window = unsafe {
+ let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window|
+ (display.xlib.XInternAtom)(display.display, delete_window, 0)
+ );
+ (display.xlib.XSetWMProtocols)(display.display, window, &mut wm_delete_window, 1);
+ with_c_str(&*builder.title, |title| {;
+ (display.xlib.XStoreName)(display.display, window, title);
+ });
+ (display.xlib.XFlush)(display.display);
+
+ wm_delete_window
+ };
+
+ // creating IM
+ let im = unsafe {
+ let _lock = GLOBAL_XOPENIM_LOCK.lock().unwrap();
+
+ let im = (display.xlib.XOpenIM)(display.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|
+ (display.xlib.XCreateIC)(
+ im, input_style,
+ ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window,
+ window, ptr::null::<()>()
+ )
+ )
+ );
+ if ic.is_null() {
+ return Err(OsError(format!("XCreateIC failed")));
+ }
+ (display.xlib.XSetICFocus)(ic);
+ ic
+ };
+
+ // Attempt to make keyboard input repeat detectable
+ unsafe {
+ let mut supported_ptr = ffi::False;
+ (display.xlib.XkbSetDetectableAutoRepeat)(display.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 = (display.xlib.XAllocClassHint)();
+ (*hint).res_name = c_name as *mut i8;
+ (*hint).res_class = c_name as *mut i8;
+ (display.xlib.XSetClassHint)(display.display, window, hint);
+ (display.xlib.XFree)(hint as *mut libc::c_void);
+ });
+ }
+
+ let is_fullscreen = builder.monitor.is_some();
+ // creating the context
+ let context = match builder.gl_version {
+ GlRequest::Latest | GlRequest::Specific(Api::OpenGl, _) | GlRequest::GlThenGles { .. } => {
+ if let Some(ref glx) = display.glx {
+ Context::Glx(try!(GlxContext::new(glx.clone(), builder, display.display, window,
+ fb_config, visual_infos)))
+ } else if let Some(ref egl) = display.egl {
+ Context::Egl(try!(EglContext::new(egl.clone(), builder, Some(display.display as *const _), window as *const _)))
+ } else {
+ return Err(CreationError::NotSupported);
+ }
+ },
+ GlRequest::Specific(Api::OpenGlEs, _) => {
+ if let Some(ref egl) = display.egl {
+ Context::Egl(try!(EglContext::new(egl.clone(), builder, Some(display.display as *const _), window as *const _)))
+ } else {
+ return Err(CreationError::NotSupported);
+ }
+ },
+ GlRequest::Specific(_, _) => {
+ return Err(CreationError::NotSupported);
+ },
+ };
+
+ // creating the window object
+ let window = Window {
+ x: Arc::new(XWindow {
+ display: display.clone(),
+ window: window,
+ im: im,
+ ic: ic,
+ context: context,
+ screen_id: screen_id,
+ is_fullscreen: is_fullscreen,
+ 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 {
+ (self.x.display.xlib.XStoreName)(self.x.display.display, self.x.window, title);
+ (self.x.display.xlib.XFlush)(self.x.display.display);
+ })
+ }
+
+ pub fn show(&self) {
+ unsafe {
+ (self.x.display.xlib.XMapRaised)(self.x.display.display, self.x.window);
+ (self.x.display.xlib.XFlush)(self.x.display.display);
+ }
+ }
+
+ pub fn hide(&self) {
+ unsafe {
+ (self.x.display.xlib.XUnmapWindow)(self.x.display.display, self.x.window);
+ (self.x.display.xlib.XFlush)(self.x.display.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 (self.x.display.xlib.XGetGeometry)(self.x.display.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 { (self.x.display.xlib.XMoveWindow)(self.x.display.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 fn platform_display(&self) -> *mut libc::c_void {
+ self.x.display.display as *mut libc::c_void
+ }
+
+ pub fn platform_window(&self) -> *mut libc::c_void {
+ self.x.window as *mut libc::c_void
+ }
+
+
+ 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 = (self.x.display.xcursor.XcursorLibraryLoadCursor)(self.x.display.display, c_string.as_ptr());
+ (self.x.display.xlib.XDefineCursor)(self.x.display.display, self.x.window, xcursor);
+ (self.x.display.xlib.XFlush)(self.x.display.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 {
+ (self.x.display.xlib.XUngrabPointer)(self.x.display.display, ffi::CurrentTime);
+ *cursor_state = CursorState::Normal;
+ Ok(())
+ }
+ },
+
+ (CursorState::Grab, CursorState::Normal) => {
+ unsafe {
+ *cursor_state = CursorState::Grab;
+
+ match (self.x.display.xlib.XGrabPointer)(
+ self.x.display.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 {
+ (self.x.display.xlib.XWarpPointer)(self.x.display.display, 0, self.x.window, 0, 0, 0, 0, x, y);
+ }
+
+ Ok(())
+ }
+}
+
+impl GlContext for Window {
+ unsafe fn make_current(&self) {
+ match self.x.context {
+ Context::Glx(ref ctxt) => ctxt.make_current(),
+ Context::Egl(ref ctxt) => ctxt.make_current(),
+ Context::None => {}
+ }
+ }
+
+ fn is_current(&self) -> bool {
+ match self.x.context {
+ Context::Glx(ref ctxt) => ctxt.is_current(),
+ Context::Egl(ref ctxt) => ctxt.is_current(),
+ Context::None => panic!()
+ }
+ }
+
+ fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
+ match self.x.context {
+ Context::Glx(ref ctxt) => ctxt.get_proc_address(addr),
+ Context::Egl(ref ctxt) => ctxt.get_proc_address(addr),
+ Context::None => ptr::null()
+ }
+ }
+
+ fn swap_buffers(&self) {
+ match self.x.context {
+ Context::Glx(ref ctxt) => ctxt.swap_buffers(),
+ Context::Egl(ref ctxt) => ctxt.swap_buffers(),
+ Context::None => {}
+ }
+ }
+
+ fn get_api(&self) -> Api {
+ match self.x.context {
+ Context::Glx(ref ctxt) => ctxt.get_api(),
+ Context::Egl(ref ctxt) => ctxt.get_api(),
+ Context::None => panic!()
+ }
+ }
+
+ fn get_pixel_format(&self) -> PixelFormat {
+ self.pixel_format.clone()
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 19:33:50 +0000