2016-12-10 05:10:49 +00:00
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// Copyright 2016 Joe Wilm, The Alacritty Project Contributors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::convert::From;
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use std::fmt::{self, Display};
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use std::ops::Deref;
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use gl;
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2017-10-22 18:34:31 +00:00
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use glutin::{self, EventsLoop, WindowBuilder, Event, MouseCursor, CursorState, ControlFlow, ContextBuilder};
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2017-07-20 17:50:50 +00:00
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use glutin::GlContext;
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2016-12-10 05:10:49 +00:00
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2017-12-20 19:12:32 +00:00
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use config::WindowConfig;
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2016-12-10 05:10:49 +00:00
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/// Window errors
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#[derive(Debug)]
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pub enum Error {
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/// Error creating the window
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2017-07-20 17:50:50 +00:00
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ContextCreation(glutin::CreationError),
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2016-12-10 05:10:49 +00:00
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/// Error manipulating the rendering context
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Context(glutin::ContextError),
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}
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/// Result of fallible operations concerning a Window.
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type Result<T> = ::std::result::Result<T, Error>;
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/// A window which can be used for displaying the terminal
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///
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/// Wraps the underlying windowing library to provide a stable API in Alacritty
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pub struct Window {
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2017-07-20 17:50:50 +00:00
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event_loop: EventsLoop,
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window: glutin::GlWindow,
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2017-02-22 20:46:08 +00:00
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cursor_visible: bool,
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2017-10-21 23:03:58 +00:00
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/// Whether or not the window is the focused window.
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pub is_focused: bool,
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2016-12-10 05:10:49 +00:00
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}
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/// Threadsafe APIs for the window
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2016-12-11 06:44:13 +00:00
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pub struct Proxy {
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inner: glutin::EventsLoopProxy,
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2016-12-11 06:44:13 +00:00
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}
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2016-12-10 05:10:49 +00:00
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/// Information about where the window is being displayed
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///
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/// Useful for subsystems like the font rasterized which depend on DPI and scale
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/// factor.
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pub struct DeviceProperties {
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/// Scale factor for pixels <-> points.
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///
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/// This will be 1. on standard displays and may have a different value on
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/// hidpi displays.
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pub scale_factor: f32,
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}
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/// Size of the window
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#[derive(Debug, Copy, Clone)]
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pub struct Size<T> {
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pub width: T,
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pub height: T,
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}
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/// Strongly typed Pixels unit
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#[derive(Debug, Copy, Clone)]
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pub struct Pixels<T>(pub T);
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/// Strongly typed Points unit
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///
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/// Points are like pixels but adjusted for DPI.
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#[derive(Debug, Copy, Clone)]
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pub struct Points<T>(pub T);
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pub trait ToPoints {
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fn to_points(&self, scale: f32) -> Size<Points<u32>>;
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}
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impl ToPoints for Size<Points<u32>> {
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#[inline]
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fn to_points(&self, _scale: f32) -> Size<Points<u32>> {
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*self
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}
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}
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impl ToPoints for Size<Pixels<u32>> {
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fn to_points(&self, scale: f32) -> Size<Points<u32>> {
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let width_pts = (*self.width as f32 / scale) as u32;
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let height_pts = (*self.height as f32 / scale) as u32;
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Size {
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width: Points(width_pts),
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height: Points(height_pts)
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}
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}
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}
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impl<T: Display> Display for Size<T> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{} × {}", self.width, self.height)
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}
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}
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macro_rules! deref_newtype {
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($($src:ty),+) => {
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$(
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impl<T> Deref for $src {
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type Target = T;
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#[inline]
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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)+
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}
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}
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deref_newtype! { Points<T>, Pixels<T> }
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impl<T: Display> Display for Pixels<T> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}px", self.0)
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}
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}
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2016-12-10 19:27:42 +00:00
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impl<T: Display> Display for Points<T> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}pts", self.0)
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}
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}
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2016-12-10 05:10:49 +00:00
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impl ::std::error::Error for Error {
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fn cause(&self) -> Option<&::std::error::Error> {
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match *self {
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Error::ContextCreation(ref err) => Some(err),
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2016-12-10 05:10:49 +00:00
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Error::Context(ref err) => Some(err),
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}
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}
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fn description(&self) -> &str {
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match *self {
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Error::ContextCreation(ref _err) => "Error creating gl context",
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Error::Context(ref _err) => "Error operating on render context",
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}
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}
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}
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impl Display for Error {
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fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
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match *self {
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2017-07-20 17:50:50 +00:00
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Error::ContextCreation(ref err) => {
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write!(f, "Error creating GL context; {}", err)
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2016-12-10 05:10:49 +00:00
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},
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Error::Context(ref err) => {
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write!(f, "Error operating on render context; {}", err)
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},
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}
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}
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}
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impl From<glutin::CreationError> for Error {
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fn from(val: glutin::CreationError) -> Error {
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2017-07-20 17:50:50 +00:00
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Error::ContextCreation(val)
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}
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}
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impl From<glutin::ContextError> for Error {
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fn from(val: glutin::ContextError) -> Error {
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Error::Context(val)
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}
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}
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impl Window {
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/// Create a new window
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///
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/// This creates a window and fully initializes a window.
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2017-01-05 21:04:23 +00:00
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pub fn new(
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title: &str,
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window_config: &WindowConfig,
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2017-01-05 21:04:23 +00:00
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) -> Result<Window> {
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let event_loop = EventsLoop::new();
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2017-07-25 00:54:06 +00:00
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Window::platform_window_init();
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2017-07-20 17:50:50 +00:00
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let window = WindowBuilder::new()
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2017-08-20 16:55:45 +00:00
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.with_title(title)
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2017-12-17 07:23:49 +00:00
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.with_transparency(true)
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2017-12-20 19:12:32 +00:00
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.with_decorations(window_config.decorations());
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2017-07-20 17:50:50 +00:00
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let context = ContextBuilder::new()
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.with_vsync(true);
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let window = ::glutin::GlWindow::new(window, context, &event_loop)?;
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2016-12-10 05:10:49 +00:00
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2017-10-22 18:34:31 +00:00
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// Text cursor
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window.set_cursor(MouseCursor::Text);
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2017-09-28 00:29:44 +00:00
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// Set OpenGL symbol loader
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2016-12-10 05:10:49 +00:00
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gl::load_with(|symbol| window.get_proc_address(symbol) as *const _);
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2017-09-28 00:29:44 +00:00
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// Make the context current so OpenGL operations can run
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2016-12-10 05:10:49 +00:00
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unsafe {
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window.make_current()?;
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}
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2017-04-26 17:26:46 +00:00
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let window = Window {
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2017-07-20 17:50:50 +00:00
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event_loop: event_loop,
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window: window,
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2017-02-22 20:46:08 +00:00
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cursor_visible: true,
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2017-10-21 23:03:58 +00:00
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is_focused: true,
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2017-04-26 17:26:46 +00:00
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};
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window.run_os_extensions();
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Ok(window)
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2016-12-10 05:10:49 +00:00
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}
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/// Get some properties about the device
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///
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/// Some window properties are provided since subsystems like font
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/// rasterization depend on DPI and scale factor.
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pub fn device_properties(&self) -> DeviceProperties {
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DeviceProperties {
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scale_factor: self.window.hidpi_factor(),
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2016-12-10 05:10:49 +00:00
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}
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}
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pub fn inner_size_pixels(&self) -> Option<Size<Pixels<u32>>> {
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self.window
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2016-12-10 05:10:49 +00:00
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.get_inner_size_pixels()
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.map(|(w, h)| Size { width: Pixels(w), height: Pixels(h) })
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}
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#[inline]
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pub fn hidpi_factor(&self) -> f32 {
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self.window.hidpi_factor()
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}
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#[inline]
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pub fn create_window_proxy(&self) -> Proxy {
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2016-12-11 06:44:13 +00:00
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Proxy {
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2017-07-20 17:50:50 +00:00
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inner: self.event_loop.create_proxy(),
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2016-12-11 06:44:13 +00:00
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}
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2016-12-10 05:10:49 +00:00
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}
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#[inline]
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pub fn swap_buffers(&self) -> Result<()> {
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self.window
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2016-12-10 05:10:49 +00:00
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.swap_buffers()
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.map_err(From::from)
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}
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2016-12-30 02:38:22 +00:00
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/// Poll for any available events
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2016-12-10 05:10:49 +00:00
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#[inline]
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2017-07-20 17:50:50 +00:00
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pub fn poll_events<F>(&mut self, func: F)
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where F: FnMut(Event)
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{
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self.event_loop.poll_events(func);
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}
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#[inline]
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pub fn resize(&self, width: u32, height: u32) {
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self.window.resize(width, height);
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2016-12-10 05:10:49 +00:00
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}
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/// Block waiting for events
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#[inline]
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2017-07-20 17:50:50 +00:00
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pub fn wait_events<F>(&mut self, func: F)
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where F: FnMut(Event) -> ControlFlow
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{
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self.event_loop.run_forever(func);
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2016-12-10 05:10:49 +00:00
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}
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2017-01-11 05:21:19 +00:00
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/// Set the window title
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#[inline]
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pub fn set_title(&self, title: &str) {
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2017-07-20 17:50:50 +00:00
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self.window.set_title(title);
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2017-01-11 05:21:19 +00:00
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}
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2017-02-22 19:52:37 +00:00
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/// Set cursor visible
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2017-02-22 20:46:08 +00:00
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pub fn set_cursor_visible(&mut self, visible: bool) {
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if visible != self.cursor_visible {
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self.cursor_visible = visible;
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2017-07-28 16:02:56 +00:00
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if let Err(err) = self.window.set_cursor_state(if visible {
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2017-07-20 17:50:50 +00:00
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CursorState::Normal
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} else {
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CursorState::Hide
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}) {
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warn!("Failed to set cursor visibility: {}", err);
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}
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2017-02-22 20:46:08 +00:00
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}
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2017-02-22 19:52:37 +00:00
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}
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2017-05-28 03:08:28 +00:00
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2017-07-25 00:54:06 +00:00
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#[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
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pub fn platform_window_init() {
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/// Set up env to make XIM work correctly
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use x11_dl::xlib;
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use libc::{setlocale, LC_CTYPE};
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let xlib = xlib::Xlib::open().expect("get xlib");
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unsafe {
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2017-09-28 00:29:44 +00:00
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// Use empty c string to fallback to LC_CTYPE in environment variables
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2017-07-25 00:54:06 +00:00
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setlocale(LC_CTYPE, b"\0".as_ptr() as *const _);
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2017-09-28 00:29:44 +00:00
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// Use empty c string for implementation dependent behavior,
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// which might be the XMODIFIERS set in env
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2017-07-25 00:54:06 +00:00
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(xlib.XSetLocaleModifiers)(b"\0".as_ptr() as *const _);
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}
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}
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/// TODO: change this directive when adding functions for other platforms
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#[cfg(not(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd")))]
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pub fn platform_window_init() {
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}
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#[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
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2017-10-21 23:03:58 +00:00
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pub fn set_urgent(&self, is_urgent: bool) {
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use glutin::os::unix::WindowExt;
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use std::os::raw;
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use x11_dl::xlib::{self, XUrgencyHint};
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let xlib_display = self.window.get_xlib_display();
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let xlib_window = self.window.get_xlib_window();
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if let (Some(xlib_window), Some(xlib_display)) = (xlib_window, xlib_display) {
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let xlib = xlib::Xlib::open().expect("get xlib");
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unsafe {
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let mut hints = (xlib.XGetWMHints)(xlib_display as _, xlib_window as _);
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if hints.is_null() {
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hints = (xlib.XAllocWMHints)();
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}
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if is_urgent {
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(*hints).flags |= XUrgencyHint;
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} else {
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(*hints).flags &= !XUrgencyHint;
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}
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(xlib.XSetWMHints)(xlib_display as _, xlib_window as _, hints);
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(xlib.XFree)(hints as *mut raw::c_void);
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}
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}
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}
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#[cfg(not(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd")))]
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2017-10-27 01:48:11 +00:00
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pub fn set_urgent(&self, _: bool) {
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2017-10-21 23:03:58 +00:00
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}
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#[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
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2017-07-25 00:54:06 +00:00
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pub fn send_xim_spot(&self, x: i16, y: i16) {
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use glutin::os::unix::WindowExt;
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self.window.send_xim_spot(x, y);
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}
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#[cfg(not(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd")))]
|
2017-08-09 18:24:03 +00:00
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pub fn send_xim_spot(&self, _x: i16, _y: i16) {
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2017-07-25 00:54:06 +00:00
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}
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|
2017-05-28 03:08:28 +00:00
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#[cfg(not(target_os = "macos"))]
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pub fn get_window_id(&self) -> Option<usize> {
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use glutin::os::unix::WindowExt;
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|
2017-07-20 17:50:50 +00:00
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match self.window.get_xlib_window() {
|
2017-05-28 03:08:28 +00:00
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Some(xlib_window) => Some(xlib_window as usize),
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None => None
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}
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}
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#[cfg(target_os = "macos")]
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pub fn get_window_id(&self) -> Option<usize> {
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None
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}
|
2016-12-10 05:10:49 +00:00
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}
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|
2017-04-26 17:26:46 +00:00
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pub trait OsExtensions {
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fn run_os_extensions(&self) {}
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}
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#[cfg(not(any(target_os = "linux", target_os = "freebsd", target_os="dragonfly", target_os="openbsd")))]
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impl OsExtensions for Window { }
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#[cfg(any(target_os = "linux", target_os = "freebsd", target_os="dragonfly", target_os="openbsd"))]
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impl OsExtensions for Window {
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fn run_os_extensions(&self) {
|
2017-07-20 17:50:50 +00:00
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|
use glutin::os::unix::WindowExt;
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|
use x11_dl::xlib::{self, XA_CARDINAL, PropModeReplace};
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|
use std::ffi::{CStr};
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|
use std::ptr;
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|
use libc::getpid;
|
2017-04-26 17:26:46 +00:00
|
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|
2017-07-20 17:50:50 +00:00
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|
|
let xlib_display = self.window.get_xlib_display();
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|
|
let xlib_window = self.window.get_xlib_window();
|
2017-04-26 17:26:46 +00:00
|
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|
|
if let (Some(xlib_window), Some(xlib_display)) = (xlib_window, xlib_display) {
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|
|
let xlib = xlib::Xlib::open().expect("get xlib");
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|
|
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|
|
// Set _NET_WM_PID to process pid
|
|
|
|
|
unsafe {
|
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|
|
let _net_wm_pid = CStr::from_ptr(b"_NET_WM_PID\0".as_ptr() as *const _);
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|
|
|
|
let atom = (xlib.XInternAtom)(xlib_display as *mut _, _net_wm_pid.as_ptr(), 0);
|
|
|
|
|
let pid = getpid();
|
|
|
|
|
|
|
|
|
|
(xlib.XChangeProperty)(xlib_display as _, xlib_window as _, atom,
|
|
|
|
|
XA_CARDINAL, 32, PropModeReplace, &pid as *const i32 as *const u8, 1);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
// Although this call doesn't actually pass any data, it does cause
|
|
|
|
|
// WM_CLIENT_MACHINE to be set. WM_CLIENT_MACHINE MUST be set if _NET_WM_PID is set
|
|
|
|
|
// (which we do above).
|
|
|
|
|
unsafe {
|
|
|
|
|
(xlib.XSetWMProperties)(xlib_display as _, xlib_window as _, ptr::null_mut(),
|
|
|
|
|
ptr::null_mut(), ptr::null_mut(), 0, ptr::null_mut(), ptr::null_mut(),
|
|
|
|
|
ptr::null_mut());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2016-12-10 05:10:49 +00:00
|
|
|
|
impl Proxy {
|
|
|
|
|
/// Wakes up the event loop of the window
|
|
|
|
|
///
|
|
|
|
|
/// This is useful for triggering a draw when the renderer would otherwise
|
|
|
|
|
/// be waiting on user input.
|
|
|
|
|
pub fn wakeup_event_loop(&self) {
|
2017-07-20 17:50:50 +00:00
|
|
|
|
self.inner.wakeup().unwrap();
|
2016-12-10 05:10:49 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub trait SetInnerSize<T> {
|
2017-05-06 15:45:23 +00:00
|
|
|
|
fn set_inner_size<S: ToPoints>(&mut self, size: &S);
|
2016-12-10 05:10:49 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
impl SetInnerSize<Pixels<u32>> for Window {
|
2017-05-06 15:45:23 +00:00
|
|
|
|
fn set_inner_size<T: ToPoints>(&mut self, size: &T) {
|
2016-12-10 05:10:49 +00:00
|
|
|
|
let size = size.to_points(self.hidpi_factor());
|
2017-07-20 17:50:50 +00:00
|
|
|
|
self.window.set_inner_size(*size.width as _, *size.height as _);
|
2016-12-10 05:10:49 +00:00
|
|
|
|
}
|
|
|
|
|
}
|