extern crate druid_win_shell;
extern crate direct2d;
extern crate directwrite;
extern crate time;
use std::any::Any;
use std::cell::RefCell;
use time::get_time;
use direct2d::math::*;
use direct2d::RenderTarget;
use direct2d::brush::SolidColorBrush;
use directwrite::TextFormat;
use druid_win_shell::paint::PaintCtx;
use druid_win_shell::util::default_text_options;
use druid_win_shell::win_main;
use druid_win_shell::window::{PresentStrategy, WindowBuilder, WindowHandle, WinHandler};
struct PerfTest(RefCell<PerfState>);
struct PerfState {
handle: WindowHandle,
last_time: f64,
dwrite_factory: directwrite::Factory,
}
impl WinHandler for PerfTest {
fn connect(&self, handle: &WindowHandle) {
self.0.borrow_mut().handle = handle.clone();
}
fn paint(&self, paint_ctx: &mut PaintCtx) -> bool {
let mut state = self.0.borrow_mut();
let rt = paint_ctx.render_target();
let size = rt.get_size();
let rect = RectF::from((0.0, 0.0, size.width, size.height));
let bg = SolidColorBrush::create(rt).with_color(0x272822).build().unwrap();
let fg = SolidColorBrush::create(rt).with_color(0xf0f0ea).build().unwrap();
rt.fill_rectangle(rect, &bg);
rt.draw_line((0.0, size.height), (size.width, 0.0), &fg, 1.0, None);
let th = ::std::f32::consts::PI * (get_time().nsec as f32) * 2e-9;
let dx = 100.0 * th.sin();
let dy = 100.0 * th.cos();
rt.draw_line((100.0, 100.0), (100.0 + dx, 100.0 - dy),
&fg, 1.0, None);
let text_format = TextFormat::create(&state.dwrite_factory)
.with_family("Consolas")
.with_size(15.0)
.build()
.unwrap();
let now = get_time();
let now = now.sec as f64 + 1e-9 * now.nsec as f64;
let msg = format!("{:3.1}ms", 1e3 * (now - state.last_time));
state.last_time = now;
rt.draw_text(
&msg,
&text_format,
(10.0, 210.0, 100.0, 300.0),
&fg,
default_text_options()
);
let msg = "Hello DWrite! This is a somewhat longer string of text intended to provoke slightly longer draw times.";
let dy = 15.0;
let x0 = 210.0;
let y0 = 10.0;
for i in 0..60 {
let y = y0 + (i as f32) * dy;
rt.draw_text(
msg,
&text_format,
(x0, y, x0 + 900.0, y + 80.0),
&fg,
default_text_options()
);
}
true
}
fn command(&self, id: u32) {
match id {
0x100 => self.0.borrow().handle.close(),
_ => println!("unexpected id {}", id),
}
}
fn char(&self, ch: u32, mods: u32) {
println!("got char 0x{:x} {:02x}", ch, mods);
}
fn keydown(&self, vk_code: i32, mods: u32) -> bool {
println!("got key code 0x{:x} {:02x}", vk_code, mods);
false
}
fn destroy(&self) {
win_main::request_quit();
}
fn as_any(&self) -> &Any { self }
}
fn main() {
druid_win_shell::init();
let mut run_loop = win_main::RunLoop::new();
let mut builder = WindowBuilder::new();
let perf_state = PerfState {
dwrite_factory: directwrite::Factory::new().unwrap(),
handle: Default::default(),
last_time: 0.0,
};
builder.set_handler(Box::new(PerfTest(RefCell::new(perf_state))));
builder.set_title("Performance tester");
builder.set_present_strategy(PresentStrategy::FlipRedirect);
let window = builder.build().unwrap();
window.show();
run_loop.run();
}