Implement headless rendering
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cfb0cb7001
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17 changed files with 791 additions and 518 deletions
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@ -1,55 +0,0 @@
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use std::{ptr};
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use super::ffi;
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pub struct MonitorID(pub uint);
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pub fn get_available_monitors() -> Vec<MonitorID> {
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let nb_monitors = unsafe {
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let display = ffi::XOpenDisplay(ptr::null());
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if display.is_null() {
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fail!("get_available_monitors failed");
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}
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let nb_monitors = ffi::XScreenCount(display);
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ffi::XCloseDisplay(display);
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nb_monitors
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};
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let mut vec = Vec::new();
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vec.grow_fn(nb_monitors as uint, |i| MonitorID(i));
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vec
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}
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pub fn get_primary_monitor() -> MonitorID {
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let primary_monitor = unsafe {
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let display = ffi::XOpenDisplay(ptr::null());
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if display.is_null() {
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fail!("get_available_monitors failed");
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}
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let primary_monitor = ffi::XDefaultScreen(display);
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ffi::XCloseDisplay(display);
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primary_monitor
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};
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MonitorID(primary_monitor as uint)
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}
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impl MonitorID {
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pub fn get_name(&self) -> Option<String> {
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let MonitorID(screen_num) = *self;
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Some(format!("Monitor #{}", screen_num))
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}
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pub fn get_dimensions(&self) -> (uint, uint) {
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let dimensions = unsafe {
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let display = ffi::XOpenDisplay(ptr::null());
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let MonitorID(screen_num) = *self;
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let screen = ffi::XScreenOfDisplay(display, screen_num as i32);
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let width = ffi::XWidthOfScreen(screen);
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let height = ffi::XHeightOfScreen(screen);
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(width as uint, height as uint)
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};
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dimensions
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}
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}
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