processing 0.3.2

An implementation of the Processing environment for Rust, with influences from Cinder and openFrameworks. It is written with Glium and has a Glutin and a GLFW backend. Tested so far on macOS and Linux. It has been developed by Robert Ennis in the lab of Katja Doerschner, a part of the Allgemeine Psychologie Department at the Justus-Liebig Universitaet of Giessen.
Documentation 
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#[cfg(feature = "glfw")]

use glium;
use glfw;

use {Screen, ScreenType};

impl<'a> Screen<'a> {
	/// Change the cursor back to the default that is used when a new Screen is made.
	/// This is operating system dependent, but is usually an arrow.
    #[inline]
    pub fn reset_cursor(&mut self) {
        self.curr_cursor = glfw::StandardCursor::Arrow;
        match self.display {
            ScreenType::Window(ref d) => {
                (*d).gl_window_mut().set_cursor(Some(glfw::Cursor::standard(self.curr_cursor)));
            }
            _ => (),
        };
    }

	/// Change the cursor. Possible types are "HAND", "ARROW", "CROSS", "MOVE", "TEXT",
	/// and "WAIT", all following the convention of Processing. These will probably be
	/// changed to enums in the future.
    #[inline]
    pub fn cursor(&mut self, cursor_type: &str) {
        match self.display {
            ScreenType::Window(ref d) => {
                (*d).gl_window_mut().set_cursor_mode(glfw::CursorMode::Normal);
            }
            _ => ()
        }
        if cursor_type == "HAND" {
            self.curr_cursor = glfw::StandardCursor::Hand;
        } else if cursor_type == "ARROW" {
            self.curr_cursor = glfw::StandardCursor::Arrow;
        } else if cursor_type == "CROSS" {
            self.curr_cursor = glfw::StandardCursor::Crosshair;
        } else if cursor_type == "MOVE" {
            self.curr_cursor = glfw::StandardCursor::Crosshair;
        } else if cursor_type == "TEXT" {
            self.curr_cursor = glfw::StandardCursor::IBeam;
        } else if cursor_type == "WAIT" {
            // self.curr_cursor = glfw::StandardCursor::Wait;
        }
        match self.display {
            ScreenType::Window(ref d) => {
                (*d).gl_window_mut().set_cursor(Some(glfw::Cursor::standard(self.curr_cursor)));
            }
            _ => ()
        };
    }

	/// Test if this screen is the currently focused screen.
    #[inline]
    pub fn focused(&mut self) -> bool {
        let mut focused = false;
        self.glfw.poll_events();
        for (_, event) in glfw::flush_messages(&self.events_loop) {
            match event {
                glfw::WindowEvent::Focus(true) => {
                    focused = true;
                }
                _ => (),
            }
        }

        focused
    }

	/// How many frames have already been revealed.
    #[inline]
    pub fn frame_count(&self) -> isize {
        self.frame_count
    }

	/// What is the current framerate of the screen.
    #[inline]
    pub fn get_frame_rate(&self) -> isize {
        self.frame_rate
    }

	/// Change the framerate of the screen.
    #[inline]
    pub fn set_frame_rate(&mut self, f_rate: isize) {
        self.frame_rate = f_rate;
    }

	/// What is the height of the screen.
    #[inline]
    pub fn height(&self) -> u32 {
        self.height
    }

	/// Disable the cursor so that it cannot be seen.
    #[inline]
    pub fn no_cursor(&mut self) {
        match self.display {
            ScreenType::Window(ref d) => {
                (*d).gl_window_mut().set_cursor_mode(glfw::CursorMode::Hidden)
            }
            _ => ()
        };
    }

	/// Draw shapes without antialiasing, so that individual pixels can be more readily
	/// observed.
    #[inline]
    pub fn no_smooth(&mut self) {
        self.draw_params = glium::draw_parameters::DrawParameters {
            smooth: None,
            ..self.draw_params.clone()
        };
    }

	/// Draw shapes with antialiasing for a more pleasing visual appearence.
    #[inline]
    pub fn smooth(&mut self) {
        self.draw_params = glium::draw_parameters::DrawParameters {
            smooth: Some(glium::draw_parameters::Smooth::Nicest),
            ..self.draw_params.clone()
        };
    }

	/// What is the width of the screen.
    #[inline]
    pub fn width(&self) -> u32 {
        self.width
    }
}