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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
extern crate euclid;
extern crate gleam;
extern crate glutin;
extern crate webrender;
extern crate winit;
#[path = "common/boilerplate.rs"]
mod boilerplate;
use crate::boilerplate::{Example, HandyDandyRectBuilder};
use std::cmp;
use webrender::api::*;
use webrender::render_api::*;
use webrender::api::units::DeviceIntSize;
struct App {
rect_count: usize,
}
impl Example for App {
fn render(
&mut self,
_api: &mut RenderApi,
builder: &mut DisplayListBuilder,
_txn: &mut Transaction,
_device_size: DeviceIntSize,
pipeline_id: PipelineId,
_document_id: DocumentId,
) {
let bounds = (0, 0).to(1920, 1080);
let space_and_clip = SpaceAndClipInfo::root_scroll(pipeline_id);
builder.push_simple_stacking_context(
bounds.min,
space_and_clip.spatial_id,
PrimitiveFlags::IS_BACKFACE_VISIBLE,
);
for _ in 0 .. self.rect_count {
builder.push_rect(
&CommonItemProperties::new(bounds, space_and_clip),
bounds,
ColorF::new(1.0, 1.0, 1.0, 0.05)
);
}
builder.pop_stacking_context();
}
fn on_event(
&mut self,
event: winit::event::WindowEvent,
_window: &winit::window::Window,
_api: &mut RenderApi,
_document_id: DocumentId,
) -> bool {
match event {
winit::event::WindowEvent::KeyboardInput {
input: winit::event::KeyboardInput {
state: winit::event::ElementState::Pressed,
virtual_keycode: Some(key),
..
},
..
} => {
match key {
winit::event::VirtualKeyCode::Right => {
self.rect_count += 1;
println!("rects = {}", self.rect_count);
}
winit::event::VirtualKeyCode::Left => {
self.rect_count = cmp::max(self.rect_count, 1) - 1;
println!("rects = {}", self.rect_count);
}
_ => {}
};
}
_ => (),
}
true
}
}
fn main() {
let mut app = App {
rect_count: 1,
};
boilerplate::main_wrapper(&mut app, None);
}
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