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3311b640cc
Differential Revision: https://phabricator.services.mozilla.com/D46587 --HG-- extra : moz-landing-system : lando
93 lines
2.4 KiB
Rust
93 lines
2.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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extern crate euclid;
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extern crate gleam;
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extern crate glutin;
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extern crate webrender;
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extern crate winit;
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#[path = "common/boilerplate.rs"]
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mod boilerplate;
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use crate::boilerplate::{Example, HandyDandyRectBuilder};
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use std::cmp;
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use webrender::api::*;
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use webrender::api::units::DeviceIntSize;
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struct App {
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rect_count: usize,
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}
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impl Example for App {
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fn render(
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&mut self,
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_api: &RenderApi,
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builder: &mut DisplayListBuilder,
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_txn: &mut Transaction,
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_device_size: DeviceIntSize,
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pipeline_id: PipelineId,
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_document_id: DocumentId,
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) {
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let bounds = (0, 0).to(1920, 1080);
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let space_and_clip = SpaceAndClipInfo::root_scroll(pipeline_id);
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builder.push_simple_stacking_context(
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bounds.origin,
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space_and_clip.spatial_id,
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PrimitiveFlags::IS_BACKFACE_VISIBLE,
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);
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for _ in 0 .. self.rect_count {
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builder.push_rect(
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&CommonItemProperties::new(bounds, space_and_clip),
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ColorF::new(1.0, 1.0, 1.0, 0.05)
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);
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}
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builder.pop_stacking_context();
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}
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fn on_event(
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&mut self,
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event: winit::WindowEvent,
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_api: &RenderApi,
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_document_id: DocumentId
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) -> bool {
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match event {
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winit::WindowEvent::KeyboardInput {
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input: winit::KeyboardInput {
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state: winit::ElementState::Pressed,
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virtual_keycode: Some(key),
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..
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},
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..
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} => {
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match key {
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winit::VirtualKeyCode::Right => {
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self.rect_count += 1;
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println!("rects = {}", self.rect_count);
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}
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winit::VirtualKeyCode::Left => {
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self.rect_count = cmp::max(self.rect_count, 1) - 1;
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println!("rects = {}", self.rect_count);
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}
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_ => {}
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};
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}
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_ => (),
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}
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true
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}
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}
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fn main() {
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let mut app = App {
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rect_count: 1,
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};
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boilerplate::main_wrapper(&mut app, None);
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}
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