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Try and fix Windows terminal

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This commit is contained in:
Nick Cameron 2014-10-22 17:42:13 +13:00
parent 3adb7554d6
commit 88a250d194
1 changed files with 23 additions and 23 deletions
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46
src/libterm/win.rs
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@ -91,7 +91,7 @@ fn bits_to_color(bits: u16) -> color::Color {
}
}
impl<T: Writer> WinConsole<T> {
impl<T: Writer+Send> WinConsole<T> {
fn apply(&mut self) {
let _unused = self.buf.flush();
let mut accum: libc::WORD = 0;
@ -112,6 +112,26 @@ impl<T: Writer> WinConsole<T> {
SetConsoleTextAttribute(out, accum);
}
}
/// Returns `None` whenever the terminal cannot be created for some
/// reason.
pub fn new(out: T) -> Option<Box<Terminal<T>+Send+'static>> {
let fg;
let bg;
unsafe {
let mut buffer_info = ::std::mem::uninitialized();
if GetConsoleScreenBufferInfo(GetStdHandle(-11), &mut buffer_info) != 0 {
fg = bits_to_color(buffer_info.wAttributes);
bg = bits_to_color(buffer_info.wAttributes >> 4);
} else {
fg = color::WHITE;
bg = color::BLACK;
}
}
Some(box WinConsole { buf: out,
def_foreground: fg, def_background: bg,
foreground: fg, background: bg } as Box<Terminal<T>+Send>)
}
}
impl<T: Writer> Writer for WinConsole<T> {
@ -124,7 +144,7 @@ impl<T: Writer> Writer for WinConsole<T> {
}
}
impl<T: Writer> Terminal<T> for WinConsole<T> {
impl<T: Writer+Send> Terminal<T> for WinConsole<T> {
fn fg(&mut self, color: color::Color) -> IoResult<bool> {
self.foreground = color;
self.apply();
@ -177,26 +197,6 @@ impl<T: Writer> Terminal<T> for WinConsole<T> {
fn get_mut<'a>(&'a mut self) -> &'a mut T { &mut self.buf }
}
impl<T: Writer> WinConsole<T> {
fn new(out: T) -> Option<Box<WinConsole<T>+Send+'static>> {
let fg;
let bg;
unsafe {
let mut buffer_info = ::std::mem::uninitialized();
if GetConsoleScreenBufferInfo(GetStdHandle(-11), &mut buffer_info) != 0 {
fg = bits_to_color(buffer_info.wAttributes);
bg = bits_to_color(buffer_info.wAttributes >> 4);
} else {
fg = color::WHITE;
bg = color::BLACK;
}
}
Some(box WinConsole { buf: out,
def_foreground: fg, def_background: bg,
foreground: fg, background: bg } )
}
}
impl<T: Writer> UnwrappableTerminal<T> for WinConsole<T> {
impl<T: Writer+Send> UnwrappableTerminal<T> for WinConsole<T> {
fn unwrap(self) -> T { self.buf }
}