Add method for resizing display

Cargo.lock

@@ -63,6 +63,7 @@ dependencies = [
 name = "bgad"
 version = "0.1.0"
 dependencies = [
+ "orbclient 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 

bgad/Cargo.toml

@@ -3,4 +3,5 @@ name = "bgad"
 version = "0.1.0"
 
 [dependencies]
+orbclient = "0.3"
 redox_syscall = "0.1"

bgad/src/main.rs

@@ -1,5 +1,6 @@
 #![deny(warnings)]
 
+extern crate orbclient;
 extern crate syscall;
 
 use std::env;
@@ -35,7 +36,10 @@ fn main() {
         let mut bga = Bga::new();
         print!("{}", format!("   - BGA {}x{}\n", bga.width(), bga.height()));
 
-        let mut scheme = BgaScheme { bga: bga };
+        let mut scheme = BgaScheme {
+            bga: bga,
+            display: File::open("display:input").ok()
+        };
         loop {
             let mut packet = Packet::default();
             socket.read(&mut packet).expect("bgad: failed to read events from bga scheme");

bgad/src/scheme.rs

@@ -1,12 +1,15 @@
+use orbclient;
+use std::fs::File;
+use std::io::Write;
 use std::str;
-
 use syscall::{Error, Result, SchemeMut, EACCES, EINVAL, MODE_CHR};
 use syscall::data::Stat;
 
 use bga::Bga;
 
 pub struct BgaScheme {
-    pub bga: Bga
+    pub bga: Bga,
+    pub display: Option<File>,
 }
 
 impl SchemeMut for BgaScheme {
@@ -56,6 +59,13 @@ impl SchemeMut for BgaScheme {
 
         self.bga.set_size(width, height);
 
+        if let Some(ref mut display) = self.display {
+            let _ = display.write(&orbclient::ResizeEvent {
+                width: width as u32,
+                height: height as u32,
+            }.to_event());
+        }
+
         Ok(buf.len())
     }