2020-02-18 17:35:00 -05:00
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// pathfinder/examples/canvas_nanovg/src/main.rs
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//
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// Copyright © 2020 The Pathfinder Project Developers.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use arrayvec::ArrayVec;
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use image;
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use pathfinder_canvas::{CanvasFontContext, CanvasRenderingContext2D, LineJoin, Path2D};
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use pathfinder_canvas::{TextAlign, TextBaseline};
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use pathfinder_color::{ColorF, ColorU};
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use pathfinder_content::fill::FillRule;
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use pathfinder_content::gradient::Gradient;
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use pathfinder_content::outline::ArcDirection;
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use pathfinder_content::pattern::{Image, Pattern, PatternFlags, PatternSource};
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use pathfinder_content::stroke::LineCap;
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use pathfinder_geometry::angle;
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use pathfinder_geometry::line_segment::LineSegment2F;
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use pathfinder_geometry::rect::RectF;
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use pathfinder_geometry::transform2d::Transform2F;
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use pathfinder_geometry::util;
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use pathfinder_geometry::vector::{Vector2F, Vector2I};
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use pathfinder_gl::{GLDevice, GLVersion};
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use pathfinder_renderer::concurrent::rayon::RayonExecutor;
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use pathfinder_renderer::concurrent::scene_proxy::SceneProxy;
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use pathfinder_renderer::gpu::options::{DestFramebuffer, RendererOptions};
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use pathfinder_renderer::gpu::renderer::Renderer;
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use pathfinder_renderer::options::BuildOptions;
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use pathfinder_resources::ResourceLoader;
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use pathfinder_resources::fs::FilesystemResourceLoader;
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use pathfinder_simd::default::F32x2;
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use sdl2::event::Event;
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use sdl2::keyboard::Keycode;
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use sdl2::video::GLProfile;
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use std::f32::consts::PI;
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use std::time::Instant;
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// TODO(pcwalton): See if we can reduce the amount of code by using the canvas shadow feature.
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const PI_2: f32 = PI * 2.0;
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static PARAGRAPH_TEXT: &'static str = "This is a longer chunk of text.
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I would have used lorem ipsum, but she was busy jumping over the lazy dog with the fox and all \
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the men who came to the aid of the party.";
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fn render_demo(canvas: &mut CanvasRenderingContext2D,
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mouse_position: Vector2F,
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window_size: Vector2F,
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time: f32,
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data: &DemoData) {
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draw_eyes(canvas,
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RectF::new(Vector2F::new(window_size.x() - 250.0, 50.0),
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Vector2F::new(150.0, 100.0)),
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mouse_position,
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time);
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draw_paragraph(canvas,
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RectF::new(Vector2F::new(window_size.x() - 450.0, 50.0),
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Vector2F::new(150.0, 100.0)));
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draw_graph(canvas,
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RectF::new(window_size.scale_xy(Vector2F::new(0.0, 0.5)),
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window_size.scale_xy(Vector2F::new(1.0, 0.5))),
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time);
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draw_color_wheel(canvas,
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RectF::new(window_size - Vector2F::splat(300.0), Vector2F::splat(250.0)),
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time);
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draw_lines(canvas,
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RectF::new(Vector2F::new(120.0, window_size.y() - 50.0),
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Vector2F::new(600.0, 50.0)),
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time);
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draw_caps(canvas, RectF::new(Vector2F::new(10.0, 300.0), Vector2F::new(30.0, 40.0)));
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draw_clip(canvas, Vector2F::new(50.0, window_size.y() - 80.0), time);
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canvas.save();
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// Draw widgets.
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draw_window(canvas,
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"Widgets & Stuff",
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RectF::new(Vector2F::splat(50.0), Vector2F::new(300.0, 400.0)));
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let mut position = Vector2F::new(60.0, 95.0);
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draw_search_box(canvas, "Search", RectF::new(position, Vector2F::new(280.0, 25.0)));
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position += Vector2F::new(0.0, 40.0);
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draw_dropdown(canvas, "Effects", RectF::new(position, Vector2F::new(280.0, 28.0)));
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let popup_position = position + Vector2F::new(0.0, 14.0);
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position += Vector2F::new(0.0, 45.0);
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// Draw login form.
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draw_label(canvas, "Login", RectF::new(position, Vector2F::new(280.0, 20.0)));
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position += Vector2F::new(0.0, 25.0);
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draw_text_edit_box(canvas, "E-mail address", RectF::new(position, Vector2F::new(280.0, 28.0)));
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position += Vector2F::new(0.0, 35.0);
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draw_text_edit_box(canvas, "Password", RectF::new(position, Vector2F::new(280.0, 28.0)));
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position += Vector2F::new(0.0, 38.0);
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draw_check_box(canvas, "Remember me", RectF::new(position, Vector2F::new(140.0, 28.0)));
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draw_button(canvas,
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"Sign In",
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RectF::new(position + Vector2F::new(138.0, 0.0), Vector2F::new(140.0, 28.0)),
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ColorU::new(0, 96, 128, 255));
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position += Vector2F::new(0.0, 45.0);
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// Draw slider form.
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draw_label(canvas, "Diameter", RectF::new(position, Vector2F::new(280.0, 20.0)));
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position += Vector2F::new(0.0, 25.0);
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draw_numeric_edit_box(canvas, "123.00", "px", RectF::new(position + Vector2F::new(180.0, 0.0),
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Vector2F::new(100.0, 28.0)));
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draw_slider(canvas, 0.4, RectF::new(position, Vector2F::new(170.0, 28.0)));
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position += Vector2F::new(0.0, 55.0);
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// Draw dialog box buttons.
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draw_button(canvas,
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"Delete",
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RectF::new(position, Vector2F::new(160.0, 28.0)),
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ColorU::new(128, 16, 8, 255));
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draw_button(canvas,
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"Cancel",
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RectF::new(position + Vector2F::new(170.0, 0.0), Vector2F::new(110.0, 28.0)),
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ColorU::transparent_black());
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2020-03-28 15:45:23 -04:00
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// Draw thumbnails.
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draw_thumbnails(canvas,
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RectF::new(Vector2F::new(365.0, popup_position.y() - 30.0),
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Vector2F::new(160.0, 300.0)),
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time,
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12,
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&data.image);
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canvas.restore();
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}
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fn draw_eyes(canvas: &mut CanvasRenderingContext2D,
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rect: RectF,
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mouse_position: Vector2F,
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time: f32) {
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let eyes_radii = rect.size().scale_xy(Vector2F::new(0.23, 0.5));
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let eyes_left_position = rect.origin() + eyes_radii;
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let eyes_right_position = rect.origin() + Vector2F::new(rect.width() - eyes_radii.x(),
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eyes_radii.y());
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let eyes_center = f32::min(eyes_radii.x(), eyes_radii.y()) * 0.5;
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let blink = 1.0 - f32::powf(f32::sin(time * 0.5), 200.0) * 0.8;
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let mut gradient =
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Gradient::linear(LineSegment2F::new(Vector2F::new(0.0, rect.height() * 0.5),
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rect.size().scale_xy(Vector2F::new(0.1, 1.0))) +
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rect.origin());
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gradient.add_color_stop(ColorU::new(0, 0, 0, 32), 0.0);
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gradient.add_color_stop(ColorU::new(0, 0, 0, 16), 1.0);
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let mut path = Path2D::new();
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path.ellipse(eyes_left_position + Vector2F::new(3.0, 16.0), eyes_radii, 0.0, 0.0, PI_2);
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path.ellipse(eyes_right_position + Vector2F::new(3.0, 16.0), eyes_radii, 0.0, 0.0, PI_2);
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canvas.set_fill_style(gradient);
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canvas.fill_path(path, FillRule::Winding);
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let mut gradient =
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Gradient::linear(LineSegment2F::new(Vector2F::new(0.0, rect.height() * 0.25),
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rect.size().scale_xy(Vector2F::new(0.1, 1.0))) +
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rect.origin());
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gradient.add_color_stop(ColorU::new(220, 220, 220, 255), 0.0);
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gradient.add_color_stop(ColorU::new(128, 128, 128, 255), 1.0);
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let mut path = Path2D::new();
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path.ellipse(eyes_left_position, eyes_radii, 0.0, 0.0, PI_2);
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path.ellipse(eyes_right_position, eyes_radii, 0.0, 0.0, PI_2);
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canvas.set_fill_style(gradient);
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canvas.fill_path(path, FillRule::Winding);
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let mut delta = (mouse_position - eyes_right_position) / eyes_radii.scale(10.0);
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let distance = delta.length();
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if distance > 1.0 {
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delta = delta.scale(1.0 / distance);
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}
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delta = delta.scale_xy(eyes_radii).scale_xy(Vector2F::new(0.4, 0.5));
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let mut path = Path2D::new();
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path.ellipse(eyes_left_position +
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delta +
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Vector2F::new(0.0, eyes_radii.y() * 0.25 * (1.0 - blink)),
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Vector2F::new(eyes_center, eyes_center * blink),
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0.0,
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0.0,
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PI_2);
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path.ellipse(eyes_right_position +
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delta +
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Vector2F::new(0.0, eyes_radii.y() * 0.25 * (1.0 - blink)),
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Vector2F::new(eyes_center, eyes_center * blink),
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0.0,
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0.0,
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PI_2);
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canvas.set_fill_style(ColorU::new(32, 32, 32, 255));
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canvas.fill_path(path, FillRule::Winding);
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let gloss_position = eyes_left_position - eyes_radii.scale_xy(Vector2F::new(0.25, 0.5));
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let gloss_radii = F32x2::new(0.1, 0.75) * F32x2::splat(eyes_radii.x());
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let mut gloss = Gradient::radial(gloss_position, gloss_radii);
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gloss.add_color_stop(ColorU::new(255, 255, 255, 128), 0.0);
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gloss.add_color_stop(ColorU::new(255, 255, 255, 0), 1.0);
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canvas.set_fill_style(gloss);
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let mut path = Path2D::new();
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path.ellipse(eyes_left_position, eyes_radii, 0.0, 0.0, PI_2);
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canvas.fill_path(path, FillRule::Winding);
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let gloss_position = eyes_right_position - eyes_radii.scale_xy(Vector2F::new(0.25, 0.5));
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let mut gloss = Gradient::radial(gloss_position, gloss_radii);
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gloss.add_color_stop(ColorU::new(255, 255, 255, 128), 0.0);
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gloss.add_color_stop(ColorU::new(255, 255, 255, 0), 1.0);
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canvas.set_fill_style(gloss);
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let mut path = Path2D::new();
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path.ellipse(eyes_right_position, eyes_radii, 0.0, 0.0, PI_2);
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canvas.fill_path(path, FillRule::Winding);
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}
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// This is nowhere near correct line layout, but it suffices to more or less match what NanoVG
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// does.
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fn draw_paragraph(canvas: &mut CanvasRenderingContext2D, rect: RectF) {
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const LINE_HEIGHT: f32 = 24.0;
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canvas.save();
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canvas.set_font_size(18.0);
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let mut cursor = rect.origin();
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next_line(canvas, &mut cursor, rect);
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let space_width = canvas.measure_text("A B").width - canvas.measure_text("AB").width;
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for space_separated in PARAGRAPH_TEXT.split(' ') {
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let mut first = true;
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for word in space_separated.split('\n') {
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if !first {
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next_line(canvas, &mut cursor, rect);
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}
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first = false;
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let word_width = canvas.measure_text(word).width;
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if cursor.x() + space_width + word_width > rect.max_x() {
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next_line(canvas, &mut cursor, rect);
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} else if cursor.x() > rect.min_x() {
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cursor = cursor + Vector2F::new(space_width, 0.0);
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}
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canvas.set_fill_style(ColorU::white());
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canvas.fill_text(word, cursor);
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cursor = cursor + Vector2F::new(word_width, 0.0);
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}
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}
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canvas.restore();
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fn next_line(canvas: &mut CanvasRenderingContext2D, cursor: &mut Vector2F, rect: RectF) {
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cursor.set_x(rect.min_x());
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canvas.set_fill_style(ColorU::new(255, 255, 255, 16));
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canvas.fill_rect(RectF::new(*cursor, Vector2F::new(rect.width(), LINE_HEIGHT)));
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*cursor = *cursor + Vector2F::new(0.0, LINE_HEIGHT);
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}
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}
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fn draw_graph(canvas: &mut CanvasRenderingContext2D, rect: RectF, time: f32) {
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let sample_spread = rect.width() / 5.0;
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let samples = [
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(1.0 + f32::sin(time * 1.2345 + f32::cos(time * 0.33457) * 0.44)) * 0.5,
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(1.0 + f32::sin(time * 0.68363 + f32::cos(time * 1.30) * 1.55)) * 0.5,
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(1.0 + f32::sin(time * 1.1642 + f32::cos(time * 0.33457) * 1.24)) * 0.5,
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(1.0 + f32::sin(time * 0.56345 + f32::cos(time * 1.63) * 0.14)) * 0.5,
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(1.0 + f32::sin(time * 1.6245 + f32::cos(time * 0.254) * 0.3)) * 0.5,
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(1.0 + f32::sin(time * 0.345 + f32::cos(time * 0.03) * 0.6)) * 0.5,
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];
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let sample_scale = Vector2F::new(sample_spread, rect.height() * 0.8);
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let sample_points: ArrayVec<[Vector2F; 6]> = samples.iter()
|
|
|
|
.enumerate()
|
|
|
|
.map(|(index, &sample)| {
|
|
|
|
rect.origin() + Vector2F::new(index as f32, sample).scale_xy(sample_scale)
|
|
|
|
}).collect();
|
|
|
|
|
|
|
|
// Draw graph background.
|
|
|
|
let mut background = Gradient::linear(LineSegment2F::new(Vector2F::default(),
|
|
|
|
Vector2F::new(0.0, rect.height())) +
|
|
|
|
rect.origin());
|
2020-03-31 00:33:05 -04:00
|
|
|
background.add_color_stop(ColorU::new(0, 160, 192, 0), 0.0);
|
|
|
|
background.add_color_stop(ColorU::new(0, 160, 192, 64), 1.0);
|
|
|
|
canvas.set_fill_style(background);
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut path = create_graph_path(&sample_points, sample_spread, Vector2F::default());
|
|
|
|
path.line_to(rect.lower_right());
|
|
|
|
path.line_to(rect.lower_left());
|
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
|
|
|
|
// Draw graph line shadow.
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 32));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.set_line_width(3.0);
|
|
|
|
let path = create_graph_path(&sample_points, sample_spread, Vector2F::new(0.0, 2.0));
|
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
|
|
|
// Draw graph line.
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 160, 192, 255));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.set_line_width(3.0);
|
|
|
|
let path = create_graph_path(&sample_points, sample_spread, Vector2F::default());
|
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
|
|
|
// Draw sample position highlights.
|
|
|
|
for &sample_point in &sample_points {
|
|
|
|
let gradient_center = sample_point + Vector2F::new(0.0, 2.0);
|
2020-03-31 00:33:05 -04:00
|
|
|
let mut background = Gradient::radial(gradient_center, F32x2::new(3.0, 8.0));
|
|
|
|
background.add_color_stop(ColorU::new(0, 0, 0, 32), 0.0);
|
|
|
|
background.add_color_stop(ColorU::transparent_black(), 1.0);
|
|
|
|
canvas.set_fill_style(background);
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.fill_rect(RectF::new(sample_point + Vector2F::new(-10.0, -10.0 + 2.0),
|
|
|
|
Vector2F::splat(20.0)));
|
|
|
|
}
|
|
|
|
|
|
|
|
// Draw sample positions.
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(0, 160, 192, 255));
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
for &sample_point in &sample_points {
|
|
|
|
path.ellipse(sample_point, Vector2F::splat(4.0), 0.0, 0.0, PI_2);
|
|
|
|
}
|
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(220, 220, 220, 255));
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
for &sample_point in &sample_points {
|
|
|
|
path.ellipse(sample_point, Vector2F::splat(2.0), 0.0, 0.0, PI_2);
|
|
|
|
}
|
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
|
|
|
|
// Reset state.
|
|
|
|
canvas.set_line_width(1.0);
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_color_wheel(canvas: &mut CanvasRenderingContext2D, rect: RectF, time: f32) {
|
|
|
|
let hue = time * 0.12;
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
let center = rect.center();
|
|
|
|
let outer_radius = f32::min(rect.width(), rect.height()) * 0.5 - 5.0;
|
|
|
|
let inner_radius = outer_radius - 20.0;
|
|
|
|
|
|
|
|
// Half a pixel arc length in radians.
|
|
|
|
let half_arc_len = 0.5 / outer_radius;
|
|
|
|
|
|
|
|
// Draw outer circle.
|
|
|
|
for segment in 0..6 {
|
|
|
|
let start_angle = segment as f32 / 6.0 * PI_2 - half_arc_len;
|
|
|
|
let end_angle = (segment + 1) as f32 / 6.0 * PI_2 + half_arc_len;
|
|
|
|
let line = LineSegment2F::new(Vector2F::new(f32::cos(start_angle), f32::sin(start_angle)),
|
|
|
|
Vector2F::new(f32::cos(end_angle), f32::sin(end_angle)));
|
|
|
|
let scale = util::lerp(inner_radius, outer_radius, 0.5);
|
|
|
|
let mut gradient = Gradient::linear(line.scale(scale) + center);
|
|
|
|
let start_color = ColorF::from_hsl(start_angle, 1.0, 0.55).to_u8();
|
|
|
|
let end_color = ColorF::from_hsl(end_angle, 1.0, 0.55).to_u8();
|
2020-03-31 00:33:05 -04:00
|
|
|
gradient.add_color_stop(start_color, 0.0);
|
|
|
|
gradient.add_color_stop(end_color, 1.0);
|
|
|
|
canvas.set_fill_style(gradient);
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.arc(center, inner_radius, start_angle, end_angle, ArcDirection::CW);
|
|
|
|
path.arc(center, outer_radius, end_angle, start_angle, ArcDirection::CCW);
|
|
|
|
path.close_path();
|
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Stroke outer circle.
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 64));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.set_line_width(1.0);
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.ellipse(center, Vector2F::splat(inner_radius - 0.5), 0.0, 0.0, PI_2);
|
|
|
|
path.ellipse(center, Vector2F::splat(outer_radius + 0.5), 0.0, 0.0, PI_2);
|
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
|
|
|
// Prepare to draw the selector.
|
|
|
|
canvas.save();
|
|
|
|
canvas.set_current_transform(&(Transform2F::from_translation(center) *
|
|
|
|
Transform2F::from_rotation(hue)));
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(255, 255, 255, 192));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.set_line_width(2.0);
|
|
|
|
canvas.stroke_rect(RectF::new(Vector2F::new(inner_radius - 1.0, -3.0),
|
|
|
|
Vector2F::new(outer_radius - inner_radius + 2.0, 6.0)));
|
|
|
|
|
|
|
|
// TODO(pcwalton): Marker fill with box gradient
|
|
|
|
|
|
|
|
// Draw center triangle.
|
|
|
|
let triangle_radius = inner_radius - 6.0;
|
|
|
|
let triangle_vertex_a = Vector2F::new(triangle_radius, 0.0);
|
|
|
|
let triangle_vertex_b = Vector2F::new(f32::cos(PI * 2.0 / 3.0),
|
|
|
|
f32::sin(PI * 2.0 / 3.0)).scale(triangle_radius);
|
|
|
|
let triangle_vertex_c = Vector2F::new(f32::cos(PI * -2.0 / 3.0),
|
|
|
|
f32::sin(PI * -2.0 / 3.0)).scale(triangle_radius);
|
|
|
|
let mut gradient_0 = Gradient::linear(LineSegment2F::new(triangle_vertex_a,
|
|
|
|
triangle_vertex_b));
|
2020-03-31 00:33:05 -04:00
|
|
|
gradient_0.add_color_stop(ColorF::from_hsl(hue, 1.0, 0.5).to_u8(), 0.0);
|
|
|
|
gradient_0.add_color_stop(ColorU::white(), 1.0);
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut gradient_1 =
|
2020-03-31 00:33:05 -04:00
|
|
|
Gradient::linear_from_points(triangle_vertex_a.lerp(triangle_vertex_b, 0.5),
|
|
|
|
triangle_vertex_c);
|
|
|
|
gradient_1.add_color_stop(ColorU::transparent_black(), 0.0);
|
|
|
|
gradient_1.add_color_stop(ColorU::black(), 1.0);
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.move_to(triangle_vertex_a);
|
|
|
|
path.line_to(triangle_vertex_b);
|
|
|
|
path.line_to(triangle_vertex_c);
|
|
|
|
path.close_path();
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(gradient_0);
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.fill_path(path.clone(), FillRule::Winding);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(gradient_1);
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.fill_path(path.clone(), FillRule::Winding);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 64));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
|
|
|
// Stroke the selection circle on the triangle.
|
|
|
|
let selection_circle_center =
|
|
|
|
Vector2F::new(f32::cos(PI_2 / 3.0),
|
|
|
|
f32::sin(PI_2 / 3.0)).scale(triangle_radius)
|
|
|
|
.scale_xy(Vector2F::new(0.3, 0.4));
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(255, 255, 255, 192));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.set_line_width(2.0);
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.ellipse(selection_circle_center, Vector2F::splat(5.0), 0.0, 0.0, PI_2);
|
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
|
|
|
// Fill the selection circle.
|
|
|
|
let mut gradient = Gradient::radial(LineSegment2F::new(selection_circle_center,
|
|
|
|
selection_circle_center),
|
2020-03-26 23:01:17 -04:00
|
|
|
F32x2::new(7.0, 9.0));
|
2020-03-31 00:33:05 -04:00
|
|
|
gradient.add_color_stop(ColorU::new(0, 0, 0, 64), 0.0);
|
|
|
|
gradient.add_color_stop(ColorU::transparent_black(), 1.0);
|
|
|
|
canvas.set_fill_style(gradient);
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.rect(RectF::new(selection_circle_center - Vector2F::splat(20.0), Vector2F::splat(40.0)));
|
|
|
|
path.ellipse(selection_circle_center, Vector2F::splat(7.0), 0.0, 0.0, PI_2);
|
|
|
|
canvas.fill_path(path, FillRule::EvenOdd);
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_lines(canvas: &mut CanvasRenderingContext2D, rect: RectF, time: f32) {
|
|
|
|
const PADDING: f32 = 5.0;
|
|
|
|
|
|
|
|
let spacing = rect.width() / 9.0 - PADDING * 2.0;
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
let points = [
|
|
|
|
Vector2F::new(-spacing * 0.25 + f32::cos(time * 0.3) * spacing * 0.5,
|
|
|
|
f32::sin(time * 0.3) * spacing * 0.5),
|
|
|
|
Vector2F::new(-spacing * 0.25, 0.0),
|
|
|
|
Vector2F::new( spacing * 0.25, 0.0),
|
|
|
|
Vector2F::new( spacing * 0.25 + f32::cos(time * -0.3) * spacing * 0.5,
|
|
|
|
f32::sin(time * -0.3) * spacing * 0.5),
|
|
|
|
];
|
|
|
|
|
|
|
|
for (cap_index, &cap) in [LineCap::Butt, LineCap::Round, LineCap::Square].iter().enumerate() {
|
|
|
|
for (join_index, &join) in [
|
|
|
|
LineJoin::Miter, LineJoin::Miter /* FIXME(pcwalton): Round crashes */, LineJoin::Bevel
|
|
|
|
].iter().enumerate() {
|
|
|
|
let origin = rect.origin() +
|
|
|
|
Vector2F::new(spacing, -spacing).scale(0.5) +
|
|
|
|
Vector2F::new((cap_index * 3 + join_index) as f32 / 9.0 * rect.width(), 0.0) +
|
|
|
|
Vector2F::splat(PADDING);
|
|
|
|
|
|
|
|
canvas.set_line_cap(cap);
|
|
|
|
canvas.set_line_join(join);
|
|
|
|
canvas.set_line_width(spacing * 0.3);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 160));
|
2020-02-18 17:35:00 -05:00
|
|
|
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.move_to(points[0] + origin);
|
|
|
|
path.line_to(points[1] + origin);
|
|
|
|
path.line_to(points[2] + origin);
|
|
|
|
path.line_to(points[3] + origin);
|
|
|
|
canvas.stroke_path(path.clone());
|
|
|
|
|
|
|
|
canvas.set_line_cap(LineCap::Butt);
|
|
|
|
canvas.set_line_join(LineJoin::Bevel);
|
|
|
|
canvas.set_line_width(1.0);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 192, 255, 255));
|
2020-02-18 17:35:00 -05:00
|
|
|
|
|
|
|
canvas.stroke_path(path);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_caps(canvas: &mut CanvasRenderingContext2D, rect: RectF) {
|
|
|
|
const LINE_WIDTH: f32 = 8.0;
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 32));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.fill_rect(rect.dilate(Vector2F::new(LINE_WIDTH / 2.0, 0.0)));
|
|
|
|
canvas.fill_rect(rect);
|
|
|
|
|
|
|
|
canvas.set_line_width(LINE_WIDTH);
|
|
|
|
for (cap_index, &cap) in [LineCap::Butt, LineCap::Round, LineCap::Square].iter().enumerate() {
|
|
|
|
canvas.set_line_cap(cap);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::black());
|
2020-02-18 17:35:00 -05:00
|
|
|
let offset = cap_index as f32 * 10.0 + 5.0;
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.move_to(rect.origin() + Vector2F::new(0.0, offset));
|
|
|
|
path.line_to(rect.upper_right() + Vector2F::new(0.0, offset));
|
|
|
|
canvas.stroke_path(path);
|
|
|
|
}
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_clip(canvas: &mut CanvasRenderingContext2D, origin: Vector2F, time: f32) {
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
// Draw first rect.
|
|
|
|
let transform_a = Transform2F::from_translation(origin) *
|
|
|
|
Transform2F::from_rotation(angle::angle_from_degrees(5.0));
|
|
|
|
canvas.set_current_transform(&transform_a);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(255, 0, 0, 255));
|
2020-02-18 17:35:00 -05:00
|
|
|
let mut clip_path = Path2D::new();
|
|
|
|
clip_path.rect(RectF::new(Vector2F::splat(-20.0), Vector2F::new(60.0, 40.0)));
|
|
|
|
canvas.fill_path(clip_path.clone(), FillRule::Winding);
|
|
|
|
|
|
|
|
// Draw second rectangle with no clip.
|
|
|
|
let transform_b = transform_a * Transform2F::from_translation(Vector2F::new(40.0, 0.0)) *
|
|
|
|
Transform2F::from_rotation(time);
|
|
|
|
canvas.set_current_transform(&transform_b);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(255, 128, 0, 64));
|
2020-02-18 17:35:00 -05:00
|
|
|
let fill_rect = RectF::new(Vector2F::new(-20.0, -10.0), Vector2F::new(60.0, 30.0));
|
|
|
|
canvas.fill_rect(fill_rect);
|
|
|
|
|
|
|
|
// Draw second rectangle with clip.
|
|
|
|
canvas.set_current_transform(&transform_a);
|
|
|
|
canvas.clip_path(clip_path, FillRule::Winding);
|
|
|
|
canvas.set_current_transform(&transform_b);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(255, 128, 0, 255));
|
2020-02-18 17:35:00 -05:00
|
|
|
canvas.fill_rect(fill_rect);
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
2020-03-27 23:53:57 -04:00
|
|
|
fn draw_window(canvas: &mut CanvasRenderingContext2D, title: &str, rect: RectF) {
|
|
|
|
const CORNER_RADIUS: f32 = 3.0;
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
// Draw window with shadow.
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(28, 30, 34, 192));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.set_shadow_offset(Vector2F::new(0.0, 2.0));
|
|
|
|
canvas.set_shadow_blur(10.0);
|
|
|
|
canvas.set_shadow_color(ColorU::new(0, 0, 0, 128));
|
|
|
|
canvas.fill_path(create_rounded_rect_path(rect, CORNER_RADIUS), FillRule::Winding);
|
|
|
|
canvas.set_shadow_color(ColorU::transparent_black());
|
|
|
|
|
|
|
|
// Header.
|
|
|
|
let mut header_gradient = Gradient::linear(LineSegment2F::new(Vector2F::default(),
|
|
|
|
Vector2F::new(0.0, 15.0)) +
|
|
|
|
rect.origin());
|
2020-03-31 00:33:05 -04:00
|
|
|
header_gradient.add_color_stop(ColorU::new(0, 0, 0, 128), 0.0);
|
|
|
|
header_gradient.add_color_stop(ColorU::transparent_black(), 1.0);
|
|
|
|
canvas.set_fill_style(header_gradient);
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.fill_path(create_rounded_rect_path(RectF::new(rect.origin() + Vector2F::splat(1.0),
|
|
|
|
Vector2F::new(rect.width() - 2.0, 30.0)),
|
|
|
|
CORNER_RADIUS - 1.0),
|
|
|
|
FillRule::Winding);
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.move_to(rect.origin() + Vector2F::new(0.5, 30.5));
|
|
|
|
path.line_to(rect.origin() + Vector2F::new(rect.width() - 0.5, 30.5));
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 32));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
// TODO(pcwalton): Bold text.
|
|
|
|
canvas.set_font_size(15.0);
|
|
|
|
canvas.set_text_align(TextAlign::Center);
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(220, 220, 220, 160));
|
|
|
|
canvas.set_shadow_blur(2.0);
|
|
|
|
canvas.set_shadow_offset(Vector2F::new(0.0, 1.0));
|
|
|
|
canvas.set_shadow_color(ColorU::new(0, 0, 0, 128));
|
|
|
|
canvas.fill_text(title, rect.origin() + Vector2F::new(rect.width() * 0.5, 16.0));
|
|
|
|
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_search_box(canvas: &mut CanvasRenderingContext2D, text: &str, rect: RectF) {
|
|
|
|
let corner_radius = rect.height() * 0.5 - 1.0;
|
|
|
|
|
2020-03-28 15:45:23 -04:00
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
create_rounded_rect_path(rect, corner_radius),
|
|
|
|
FillRule::Winding,
|
|
|
|
rect + Vector2F::new(0.0, 1.5),
|
|
|
|
rect.height() * 0.5,
|
|
|
|
5.0,
|
|
|
|
ColorU::new(0, 0, 0, 16),
|
|
|
|
ColorU::new(0, 0, 0, 92));
|
2020-03-31 00:33:05 -04:00
|
|
|
|
|
|
|
canvas.set_font_size(17.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 64));
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_align(TextAlign::Left);
|
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(text,
|
|
|
|
rect.origin() + Vector2F::splat(rect.height()) * Vector2F::new(1.05, 0.5));
|
2020-03-27 23:53:57 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_dropdown(canvas: &mut CanvasRenderingContext2D, text: &str, rect: RectF) {
|
|
|
|
const CORNER_RADIUS: f32 = 4.0;
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
let mut background_gradient = Gradient::linear_from_points(rect.origin(), rect.lower_left());
|
|
|
|
background_gradient.add_color_stop(ColorU::new(255, 255, 255, 16), 0.0);
|
|
|
|
background_gradient.add_color_stop(ColorU::new(0, 0, 0, 16), 1.0);
|
|
|
|
canvas.set_fill_style(background_gradient);
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.fill_path(create_rounded_rect_path(rect.contract(Vector2F::splat(1.0)),
|
|
|
|
CORNER_RADIUS - 1.0),
|
|
|
|
FillRule::Winding);
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 48));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.stroke_path(create_rounded_rect_path(rect.contract(Vector2F::splat(0.5)),
|
|
|
|
CORNER_RADIUS - 0.5));
|
2020-03-31 00:33:05 -04:00
|
|
|
|
|
|
|
canvas.set_font_size(17.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 160));
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_align(TextAlign::Left);
|
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(text,
|
|
|
|
rect.origin() + Vector2F::splat(rect.height()) * Vector2F::new(0.3, 0.5));
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_label(canvas: &mut CanvasRenderingContext2D, text: &str, rect: RectF) {
|
|
|
|
canvas.set_font_size(15.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 128));
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_align(TextAlign::Left);
|
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(text, rect.origin() + Vector2F::new(0.0, rect.height() * 0.5));
|
2020-03-27 23:53:57 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_edit_box(canvas: &mut CanvasRenderingContext2D, rect: RectF) {
|
|
|
|
const CORNER_RADIUS: f32 = 4.0;
|
|
|
|
|
2020-03-28 15:45:23 -04:00
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
create_rounded_rect_path(rect.contract(Vector2F::splat(1.0)),
|
|
|
|
CORNER_RADIUS - 1.0),
|
|
|
|
FillRule::Winding,
|
|
|
|
rect.contract(Vector2F::splat(1.0)) + Vector2F::new(0.0, 1.5),
|
|
|
|
3.0,
|
|
|
|
4.0,
|
|
|
|
ColorU::new(255, 255, 255, 32),
|
|
|
|
ColorU::new(32, 32, 32, 32));
|
2020-03-27 23:53:57 -04:00
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 48));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.stroke_path(create_rounded_rect_path(rect.contract(Vector2F::splat(0.5)),
|
|
|
|
CORNER_RADIUS - 0.5));
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_text_edit_box(canvas: &mut CanvasRenderingContext2D, text: &str, rect: RectF) {
|
2020-03-31 00:33:05 -04:00
|
|
|
draw_edit_box(canvas, rect);
|
|
|
|
|
|
|
|
canvas.set_font_size(17.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 64));
|
|
|
|
canvas.set_text_align(TextAlign::Left);
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(text,
|
|
|
|
rect.origin() + Vector2F::splat(rect.height()) * Vector2F::new(0.3, 0.5));
|
2020-03-27 23:53:57 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_numeric_edit_box(canvas: &mut CanvasRenderingContext2D,
|
|
|
|
value: &str,
|
|
|
|
unit: &str,
|
|
|
|
rect: RectF) {
|
2020-03-31 00:33:05 -04:00
|
|
|
draw_edit_box(canvas, rect);
|
|
|
|
|
|
|
|
canvas.set_font_size(15.0);
|
|
|
|
let unit_width = canvas.measure_text(unit).width;
|
|
|
|
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 64));
|
|
|
|
canvas.set_text_align(TextAlign::Right);
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(
|
|
|
|
unit,
|
|
|
|
rect.upper_right() + Vector2F::new(-0.3, 0.5) * Vector2F::splat(rect.height()));
|
|
|
|
|
|
|
|
canvas.set_font_size(17.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 128));
|
|
|
|
canvas.set_text_align(TextAlign::Right);
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(value,
|
|
|
|
rect.upper_right() + Vector2F::new(-unit_width - rect.height() * 0.5,
|
|
|
|
rect.height() * 0.5));
|
2020-03-27 23:53:57 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_check_box(canvas: &mut CanvasRenderingContext2D, text: &str, rect: RectF) {
|
|
|
|
const CORNER_RADIUS: f32 = 3.0;
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_font_size(15.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 160));
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_align(TextAlign::Left);
|
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(text, rect.origin() + Vector2F::new(28.0, rect.height() * 0.5));
|
|
|
|
|
2020-03-27 23:53:57 -04:00
|
|
|
let check_box_rect =
|
|
|
|
RectF::new(Vector2F::new(rect.origin_x(), rect.center().y().floor() - 9.0),
|
|
|
|
Vector2F::splat(20.0)).contract(Vector2F::splat(1.0));
|
2020-03-28 15:45:23 -04:00
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
create_rounded_rect_path(check_box_rect, CORNER_RADIUS),
|
|
|
|
FillRule::Winding,
|
|
|
|
check_box_rect + Vector2F::new(0.0, 1.0),
|
|
|
|
CORNER_RADIUS,
|
|
|
|
3.0,
|
|
|
|
ColorU::new(0, 0, 0, 32),
|
|
|
|
ColorU::new(0, 0, 0, 92));
|
2020-03-31 00:33:05 -04:00
|
|
|
|
|
|
|
// TODO(pcwalton): Icon.
|
2020-03-27 23:53:57 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_button(canvas: &mut CanvasRenderingContext2D, text: &str, rect: RectF, color: ColorU) {
|
|
|
|
const CORNER_RADIUS: f32 = 4.0;
|
|
|
|
|
|
|
|
let path = create_rounded_rect_path(rect.contract(Vector2F::splat(1.0)), CORNER_RADIUS - 1.0);
|
|
|
|
if color != ColorU::transparent_black() {
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(color);
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.fill_path(path.clone(), FillRule::Winding);
|
|
|
|
}
|
|
|
|
let alpha = if color == ColorU::transparent_black() { 16 } else { 32 };
|
2020-03-31 00:33:05 -04:00
|
|
|
let mut background_gradient = Gradient::linear_from_points(rect.origin(), rect.lower_left());
|
|
|
|
background_gradient.add_color_stop(ColorU::new(255, 255, 255, alpha), 0.0);
|
|
|
|
background_gradient.add_color_stop(ColorU::new(0, 0, 0, alpha), 1.0);
|
|
|
|
canvas.set_fill_style(background_gradient);
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 48));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.stroke_path(create_rounded_rect_path(rect.contract(Vector2F::splat(0.5)),
|
|
|
|
CORNER_RADIUS - 0.5));
|
2020-03-31 00:33:05 -04:00
|
|
|
|
|
|
|
// TODO(pcwalton): Bold font.
|
|
|
|
// TODO(pcwalton): Icon.
|
|
|
|
canvas.set_font_size(17.0);
|
|
|
|
let text_width = canvas.measure_text(text).width;
|
|
|
|
let icon_width = 0.0;
|
|
|
|
|
|
|
|
canvas.set_font_size(17.0);
|
|
|
|
let text_origin = rect.center() + Vector2F::new(icon_width * 0.25 - text_width * 0.5, 0.0);
|
|
|
|
canvas.set_fill_style(ColorU::new(0, 0, 0, 160));
|
|
|
|
canvas.set_text_align(TextAlign::Left);
|
2020-03-31 01:00:13 -04:00
|
|
|
canvas.set_text_baseline(TextBaseline::Middle);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.fill_text(text, text_origin - Vector2F::new(0.0, 1.0));
|
|
|
|
canvas.set_fill_style(ColorU::new(255, 255, 255, 160));
|
|
|
|
canvas.fill_text(text, text_origin);
|
2020-03-27 23:53:57 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_slider(canvas: &mut CanvasRenderingContext2D, value: f32, rect: RectF) {
|
|
|
|
let (center_y, knob_radius) = (rect.center().y().floor(), (rect.height() * 0.25).floor());
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
// Draw track.
|
|
|
|
// TODO(pcwalton): Box gradient.
|
|
|
|
let track_rect = RectF::new(Vector2F::new(rect.origin_x(), center_y - 2.0),
|
|
|
|
Vector2F::new(rect.width(), 4.0));
|
2020-03-28 15:45:23 -04:00
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
create_rounded_rect_path(track_rect, 2.0),
|
|
|
|
FillRule::Winding,
|
|
|
|
track_rect + Vector2F::new(0.0, 1.0),
|
|
|
|
2.0,
|
|
|
|
2.0,
|
|
|
|
ColorU::new(0, 0, 0, 32),
|
|
|
|
ColorU::new(0, 0, 0, 128));
|
2020-03-27 23:53:57 -04:00
|
|
|
|
|
|
|
// Draw knob shadow.
|
|
|
|
let knob_position = Vector2F::new(rect.origin_x() + (value * rect.width()).floor(), center_y);
|
|
|
|
let mut background_gradient =
|
|
|
|
Gradient::radial(LineSegment2F::new(knob_position,
|
|
|
|
knob_position) + Vector2F::new(0.0, 1.0),
|
|
|
|
F32x2::splat(knob_radius) * F32x2::new(-3.0, 3.0));
|
2020-03-31 00:33:05 -04:00
|
|
|
background_gradient.add_color_stop(ColorU::new(0, 0, 0, 64), 0.0);
|
|
|
|
background_gradient.add_color_stop(ColorU::transparent_black(), 1.0);
|
|
|
|
canvas.set_fill_style(background_gradient);
|
2020-03-27 23:53:57 -04:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.rect(RectF::new(knob_position,
|
|
|
|
Vector2F::default()).dilate(Vector2F::splat(knob_radius + 5.0)));
|
|
|
|
path.ellipse(knob_position, Vector2F::splat(knob_radius), 0.0, 0.0, PI_2);
|
|
|
|
canvas.fill_path(path, FillRule::EvenOdd);
|
|
|
|
|
|
|
|
// Fill knob.
|
|
|
|
let mut background_gradient =
|
2020-03-31 00:33:05 -04:00
|
|
|
Gradient::linear_from_points(knob_position - Vector2F::new(0.0, knob_radius),
|
|
|
|
knob_position + Vector2F::new(0.0, knob_radius));
|
|
|
|
background_gradient.add_color_stop(ColorU::new(255, 255, 255, 16), 0.0);
|
|
|
|
background_gradient.add_color_stop(ColorU::new(0, 0, 0, 16), 1.0);
|
2020-03-27 23:53:57 -04:00
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.ellipse(knob_position, Vector2F::splat(knob_radius - 1.0), 0.0, 0.0, PI_2);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(40, 43, 48, 255));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.fill_path(path.clone(), FillRule::Winding);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(background_gradient);
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
|
|
|
|
// Outline knob.
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.ellipse(knob_position, Vector2F::splat(knob_radius - 0.5), 0.0, 0.0, PI_2);
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(0, 0, 0, 92));
|
2020-03-27 23:53:57 -04:00
|
|
|
canvas.stroke_path(path);
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
2020-03-28 15:45:23 -04:00
|
|
|
fn draw_thumbnails(canvas: &mut CanvasRenderingContext2D,
|
|
|
|
rect: RectF,
|
|
|
|
time: f32,
|
2020-03-30 19:18:41 -04:00
|
|
|
image_count: usize,
|
|
|
|
image: &Image) {
|
2020-03-28 15:45:23 -04:00
|
|
|
const CORNER_RADIUS: f32 = 3.0;
|
|
|
|
const THUMB_HEIGHT: f32 = 60.0;
|
|
|
|
const ARROW_Y_POSITION: f32 = 30.5;
|
2020-03-30 19:18:41 -04:00
|
|
|
const IMAGES_ACROSS: usize = 4;
|
2020-03-28 15:45:23 -04:00
|
|
|
|
|
|
|
let stack_height = image_count as f32 * 0.5 * (THUMB_HEIGHT + 10.0) + 10.0;
|
|
|
|
let scroll_height = rect.height() / stack_height * (rect.height() - 8.0);
|
|
|
|
let scroll_y = (1.0 + f32::cos(time * 0.5)) * 0.5;
|
|
|
|
let load_y = (1.0 - f32::cos(time * 0.2)) * 0.5;
|
|
|
|
let image_y_scale = 1.0 / (image_count as f32 - 1.0);
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
// Draw drop shadow.
|
|
|
|
let mut path = create_rounded_rect_path(rect, CORNER_RADIUS);
|
|
|
|
path.rect(RectF::new(rect.origin() - Vector2F::splat(10.0),
|
|
|
|
rect.size() + Vector2F::new(20.0, 30.0)));
|
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
path,
|
|
|
|
FillRule::EvenOdd,
|
|
|
|
rect + Vector2F::new(0.0, 4.0),
|
|
|
|
CORNER_RADIUS * 2.0,
|
|
|
|
20.0,
|
|
|
|
ColorU::new(0, 0, 0, 128),
|
|
|
|
ColorU::transparent_black());
|
|
|
|
|
|
|
|
// Draw window.
|
|
|
|
let mut path = create_rounded_rect_path(rect, CORNER_RADIUS);
|
|
|
|
path.move_to(rect.origin() + Vector2F::new(-10.0, ARROW_Y_POSITION));
|
|
|
|
path.line_to(rect.origin() + Vector2F::new(1.0, ARROW_Y_POSITION - 11.0));
|
|
|
|
path.line_to(rect.origin() + Vector2F::new(1.0, ARROW_Y_POSITION + 11.0));
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(ColorU::new(200, 200, 200, 255));
|
2020-03-28 15:45:23 -04:00
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
|
|
|
|
// Draw images.
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
let mut clip_path = Path2D::new();
|
|
|
|
clip_path.rect(rect);
|
|
|
|
canvas.clip_path(clip_path, FillRule::Winding);
|
|
|
|
canvas.set_current_transform(&Transform2F::from_translation(
|
|
|
|
Vector2F::new(0.0, -scroll_y * (stack_height - rect.height()))));
|
|
|
|
|
|
|
|
for image_index in 0..image_count {
|
|
|
|
let image_origin = rect.origin() + Vector2F::splat(10.0) +
|
|
|
|
Vector2I::new(image_index as i32 % 2,
|
|
|
|
image_index as i32 / 2).to_f32().scale(THUMB_HEIGHT + 10.0);
|
|
|
|
let image_rect = RectF::new(image_origin, Vector2F::splat(THUMB_HEIGHT));
|
|
|
|
|
|
|
|
let image_y = image_index as f32 * image_y_scale;
|
|
|
|
let alpha = util::clamp((load_y - image_y) / image_y_scale, 0.0, 1.0);
|
|
|
|
if alpha < 1.0 {
|
|
|
|
draw_spinner(canvas, image_rect.center(), THUMB_HEIGHT * 0.25, time);
|
|
|
|
}
|
|
|
|
|
2020-03-30 19:18:41 -04:00
|
|
|
let image_path = create_rounded_rect_path(image_rect, 5.0);
|
|
|
|
let pattern_transform = Transform2F::from_translation(
|
|
|
|
image_rect.origin() -
|
|
|
|
Vector2I::new((image_index % IMAGES_ACROSS) as i32,
|
|
|
|
(image_index / IMAGES_ACROSS) as i32).to_f32().scale(THUMB_HEIGHT)) *
|
|
|
|
Transform2F::from_scale(Vector2F::splat(0.5));
|
|
|
|
let pattern = Pattern::new(PatternSource::Image((*image).clone()),
|
|
|
|
pattern_transform,
|
|
|
|
PatternFlags::empty());
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_fill_style(pattern);
|
2020-03-30 19:18:41 -04:00
|
|
|
canvas.fill_path(image_path, FillRule::Winding);
|
|
|
|
|
2020-03-28 15:45:23 -04:00
|
|
|
let mut shadow_path = create_rounded_rect_path(image_rect, 6.0);
|
|
|
|
shadow_path.rect(image_rect.dilate(Vector2F::splat(5.0)));
|
|
|
|
// TODO(pcwalton): Union clip paths.
|
2020-03-30 19:18:41 -04:00
|
|
|
/*
|
|
|
|
fill_path_with_box_gradient(
|
2020-03-28 15:45:23 -04:00
|
|
|
canvas,
|
|
|
|
shadow_path,
|
|
|
|
FillRule::EvenOdd,
|
|
|
|
image_rect.dilate(Vector2F::splat(1.0)) + Vector2F::new(0.0, 1.0),
|
|
|
|
5.0,
|
|
|
|
3.0,
|
|
|
|
ColorU::new(0, 0, 0, 128),
|
2020-03-30 19:18:41 -04:00
|
|
|
ColorU::transparent_black());
|
|
|
|
*/
|
2020-03-28 15:45:23 -04:00
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
canvas.set_stroke_style(ColorU::new(255, 255, 255, 192));
|
2020-03-28 15:45:23 -04:00
|
|
|
canvas.stroke_path(create_rounded_rect_path(image_rect.dilate(Vector2F::splat(0.5)), 3.5));
|
|
|
|
}
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
|
|
|
|
// Draw fade-away gradients.
|
|
|
|
|
2020-03-31 00:33:05 -04:00
|
|
|
let mut fade_gradient = Gradient::linear_from_points(rect.origin(),
|
|
|
|
rect.origin() + Vector2F::new(0.0, 6.0));
|
|
|
|
fade_gradient.add_color_stop(ColorU::new(200, 200, 200, 255), 0.0);
|
|
|
|
fade_gradient.add_color_stop(ColorU::new(200, 200, 200, 0), 1.0);
|
|
|
|
canvas.set_fill_style(fade_gradient);
|
2020-03-28 15:45:23 -04:00
|
|
|
canvas.fill_rect(RectF::new(rect.origin() + Vector2F::new(4.0, 0.0),
|
|
|
|
Vector2F::new(rect.width() - 8.0, 6.0)));
|
|
|
|
|
|
|
|
let mut fade_gradient =
|
|
|
|
Gradient::linear(LineSegment2F::new(rect.lower_left(),
|
|
|
|
rect.lower_left() - Vector2F::new(0.0, 6.0)));
|
2020-03-31 00:33:05 -04:00
|
|
|
fade_gradient.add_color_stop(ColorU::new(200, 200, 200, 255), 0.0);
|
|
|
|
fade_gradient.add_color_stop(ColorU::new(200, 200, 200, 0), 1.0);
|
|
|
|
canvas.set_fill_style(fade_gradient);
|
2020-03-28 15:45:23 -04:00
|
|
|
canvas.fill_rect(RectF::new(rect.lower_left() + Vector2F::new(4.0, -6.0),
|
|
|
|
Vector2F::new(rect.width() - 8.0, 6.0)));
|
|
|
|
|
|
|
|
// Draw scroll bar.
|
|
|
|
|
|
|
|
let scroll_bar_rect = RectF::new(rect.upper_right() + Vector2F::new(-12.0, 4.0),
|
|
|
|
Vector2F::new(8.0, rect.height() - 8.0));
|
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
create_rounded_rect_path(scroll_bar_rect, CORNER_RADIUS),
|
|
|
|
FillRule::Winding,
|
|
|
|
scroll_bar_rect + Vector2F::new(0.0, 1.0),
|
|
|
|
CORNER_RADIUS,
|
|
|
|
4.0,
|
|
|
|
ColorU::new(0, 0, 0, 32),
|
|
|
|
ColorU::new(0, 0, 0, 92));
|
|
|
|
|
|
|
|
let knob_rect =
|
|
|
|
RectF::new(rect.upper_right() +
|
|
|
|
Vector2F::new(-11.0, 5.0 + (rect.height() - 8.0 - scroll_height) * scroll_y),
|
|
|
|
Vector2F::new(6.0, scroll_height - 2.0));
|
|
|
|
fill_path_with_box_gradient(canvas,
|
|
|
|
create_rounded_rect_path(knob_rect, 2.0),
|
|
|
|
FillRule::Winding,
|
|
|
|
knob_rect.dilate(Vector2F::splat(2.0)) + Vector2F::new(0.0, 1.0),
|
|
|
|
3.0,
|
|
|
|
4.0,
|
|
|
|
ColorU::new(220, 220, 220, 255),
|
|
|
|
ColorU::new(128, 128, 128, 255));
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn draw_spinner(canvas: &mut CanvasRenderingContext2D, center: Vector2F, radius: f32, time: f32) {
|
|
|
|
let (start_angle, end_angle) = (time * 6.0, PI + time * 6.0);
|
|
|
|
let (outer_radius, inner_radius) = (radius, radius * 0.75);
|
|
|
|
let average_radius = util::lerp(outer_radius, inner_radius, 0.5);
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.arc(center, outer_radius, start_angle, end_angle, ArcDirection::CW);
|
|
|
|
path.arc(center, inner_radius, end_angle, start_angle, ArcDirection::CCW);
|
|
|
|
path.close_path();
|
|
|
|
set_linear_gradient_fill_style(
|
|
|
|
canvas,
|
|
|
|
center + Vector2F::new(outer_radius.cos(), outer_radius.sin()).scale(average_radius),
|
|
|
|
center + Vector2F::new(inner_radius.cos(), inner_radius.sin()).scale(average_radius),
|
|
|
|
ColorU::transparent_black(),
|
|
|
|
ColorU::new(0, 0, 0, 128));
|
|
|
|
canvas.fill_path(path, FillRule::Winding);
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn fill_path_with_box_gradient(canvas: &mut CanvasRenderingContext2D,
|
|
|
|
path: Path2D,
|
|
|
|
fill_rule: FillRule,
|
|
|
|
rect: RectF,
|
|
|
|
corner_radius: f32,
|
|
|
|
blur_radius: f32,
|
|
|
|
inner_color: ColorU,
|
|
|
|
outer_color: ColorU) {
|
|
|
|
// TODO(pcwalton): Fill the corners with radial gradients.
|
|
|
|
|
|
|
|
let window_rect = RectF::new(Vector2F::default(), Vector2F::new(800.0, 600.0));
|
|
|
|
let inner_rect = rect.contract(Vector2F::splat(blur_radius));
|
|
|
|
let outer_rect = rect.dilate(Vector2F::splat(blur_radius));
|
|
|
|
|
|
|
|
canvas.save();
|
|
|
|
|
|
|
|
canvas.clip_path(path, fill_rule);
|
|
|
|
|
|
|
|
// Draw left part.
|
|
|
|
let mut section = Path2D::new();
|
|
|
|
section.move_to(window_rect.origin());
|
|
|
|
section.line_to(outer_rect.origin());
|
|
|
|
section.line_to(inner_rect.origin());
|
|
|
|
section.line_to(rect.center());
|
|
|
|
section.line_to(inner_rect.lower_left());
|
|
|
|
section.line_to(outer_rect.lower_left());
|
|
|
|
section.line_to(window_rect.lower_left());
|
|
|
|
section.close_path();
|
|
|
|
set_linear_gradient_fill_style(canvas,
|
|
|
|
outer_rect.origin(),
|
|
|
|
Vector2F::new(inner_rect.min_x(), outer_rect.min_y()),
|
|
|
|
outer_color,
|
|
|
|
inner_color);
|
|
|
|
canvas.fill_path(section, FillRule::Winding);
|
|
|
|
|
|
|
|
// Draw top part.
|
|
|
|
let mut section = Path2D::new();
|
|
|
|
section.move_to(window_rect.origin());
|
|
|
|
section.line_to(outer_rect.origin());
|
|
|
|
section.line_to(inner_rect.origin());
|
|
|
|
section.line_to(rect.center());
|
|
|
|
section.line_to(inner_rect.upper_right());
|
|
|
|
section.line_to(outer_rect.upper_right());
|
|
|
|
section.line_to(window_rect.upper_right());
|
|
|
|
section.close_path();
|
|
|
|
set_linear_gradient_fill_style(canvas,
|
|
|
|
outer_rect.origin(),
|
|
|
|
Vector2F::new(outer_rect.min_x(), inner_rect.min_y()),
|
|
|
|
outer_color,
|
|
|
|
inner_color);
|
|
|
|
canvas.fill_path(section, FillRule::Winding);
|
|
|
|
|
|
|
|
// Draw right part.
|
|
|
|
let mut section = Path2D::new();
|
|
|
|
section.move_to(window_rect.upper_right());
|
|
|
|
section.line_to(outer_rect.upper_right());
|
|
|
|
section.line_to(inner_rect.upper_right());
|
|
|
|
section.line_to(rect.center());
|
|
|
|
section.line_to(inner_rect.lower_right());
|
|
|
|
section.line_to(outer_rect.lower_right());
|
|
|
|
section.line_to(window_rect.lower_right());
|
|
|
|
section.close_path();
|
|
|
|
set_linear_gradient_fill_style(canvas,
|
|
|
|
outer_rect.upper_right(),
|
|
|
|
Vector2F::new(inner_rect.max_x(), outer_rect.min_y()),
|
|
|
|
outer_color,
|
|
|
|
inner_color);
|
|
|
|
canvas.fill_path(section, FillRule::Winding);
|
|
|
|
|
|
|
|
// Draw bottom part.
|
|
|
|
let mut section = Path2D::new();
|
|
|
|
section.move_to(window_rect.lower_right());
|
|
|
|
section.line_to(outer_rect.lower_right());
|
|
|
|
section.line_to(inner_rect.lower_right());
|
|
|
|
section.line_to(rect.center());
|
|
|
|
section.line_to(inner_rect.lower_left());
|
|
|
|
section.line_to(outer_rect.lower_left());
|
|
|
|
section.line_to(window_rect.lower_left());
|
|
|
|
section.close_path();
|
|
|
|
set_linear_gradient_fill_style(canvas,
|
|
|
|
outer_rect.lower_left(),
|
|
|
|
Vector2F::new(outer_rect.min_x(), inner_rect.max_y()),
|
|
|
|
outer_color,
|
|
|
|
inner_color);
|
|
|
|
canvas.fill_path(section, FillRule::Winding);
|
|
|
|
|
|
|
|
canvas.restore();
|
|
|
|
}
|
|
|
|
|
|
|
|
fn set_linear_gradient_fill_style(canvas: &mut CanvasRenderingContext2D,
|
|
|
|
from_position: Vector2F,
|
|
|
|
to_position: Vector2F,
|
|
|
|
from_color: ColorU,
|
|
|
|
to_color: ColorU) {
|
|
|
|
let mut gradient = Gradient::linear(LineSegment2F::new(from_position, to_position));
|
2020-03-31 00:33:05 -04:00
|
|
|
gradient.add_color_stop(from_color, 0.0);
|
|
|
|
gradient.add_color_stop(to_color, 1.0);
|
|
|
|
canvas.set_fill_style(gradient);
|
2020-03-28 15:45:23 -04:00
|
|
|
}
|
|
|
|
|
2020-02-18 17:35:00 -05:00
|
|
|
fn create_graph_path(sample_points: &[Vector2F], sample_spread: f32, offset: Vector2F) -> Path2D {
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.move_to(sample_points[0] + Vector2F::new(0.0, 2.0));
|
|
|
|
for pair in sample_points.windows(2) {
|
|
|
|
path.bezier_curve_to(pair[0] + offset + Vector2F::new(sample_spread * 0.5, 0.0),
|
|
|
|
pair[1] + offset - Vector2F::new(sample_spread * 0.5, 0.0),
|
|
|
|
pair[1] + offset);
|
|
|
|
}
|
|
|
|
path
|
|
|
|
}
|
|
|
|
|
2020-03-27 23:53:57 -04:00
|
|
|
fn create_rounded_rect_path(rect: RectF, radius: f32) -> Path2D {
|
|
|
|
let mut path = Path2D::new();
|
|
|
|
path.move_to(rect.origin() + Vector2F::new(radius, 0.0));
|
|
|
|
path.arc_to(rect.upper_right(), rect.upper_right() + Vector2F::new(0.0, radius), radius);
|
|
|
|
path.arc_to(rect.lower_right(), rect.lower_right() + Vector2F::new(-radius, 0.0), radius);
|
|
|
|
path.arc_to(rect.lower_left(), rect.lower_left() + Vector2F::new(0.0, -radius), radius);
|
|
|
|
path.arc_to(rect.origin(), rect.origin() + Vector2F::new(radius, 0.0), radius);
|
|
|
|
path.close_path();
|
|
|
|
path
|
|
|
|
}
|
|
|
|
|
2020-03-30 19:18:41 -04:00
|
|
|
struct DemoData {
|
|
|
|
image: Image,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl DemoData {
|
|
|
|
fn load(resources: &dyn ResourceLoader) -> DemoData {
|
|
|
|
let data = resources.slurp("textures/example-nanovg.png").unwrap();
|
|
|
|
let image = image::load_from_memory(&data).unwrap().to_rgba();
|
|
|
|
let image = Image::from_image_buffer(image);
|
|
|
|
DemoData { image }
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-02-18 17:35:00 -05:00
|
|
|
fn main() {
|
|
|
|
// Set up SDL2.
|
|
|
|
let sdl_context = sdl2::init().unwrap();
|
|
|
|
let video = sdl_context.video().unwrap();
|
|
|
|
|
|
|
|
// Make sure we have at least a GL 3.0 context. Pathfinder requires this.
|
|
|
|
let gl_attributes = video.gl_attr();
|
|
|
|
gl_attributes.set_context_profile(GLProfile::Core);
|
|
|
|
gl_attributes.set_context_version(3, 3);
|
|
|
|
|
|
|
|
// Open a window.
|
|
|
|
let window_size = Vector2I::new(800, 600);
|
|
|
|
let window =
|
|
|
|
video.window("NanoVG example port", window_size.x() as u32, window_size.y() as u32)
|
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.opengl()
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.build()
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.unwrap();
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// Create the GL context, and make it current.
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let gl_context = window.gl_create_context().unwrap();
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gl::load_with(|name| video.gl_get_proc_address(name) as *const _);
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window.gl_make_current(&gl_context).unwrap();
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2020-03-30 19:18:41 -04:00
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// Load demo data.
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let resources = FilesystemResourceLoader::locate();
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let demo_data = DemoData::load(&resources);
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2020-02-18 17:35:00 -05:00
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// Create a Pathfinder renderer.
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let mut renderer = Renderer::new(GLDevice::new(GLVersion::GL3, 0),
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2020-03-30 19:18:41 -04:00
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&resources,
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2020-02-18 17:35:00 -05:00
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DestFramebuffer::full_window(window_size),
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RendererOptions {
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background_color: Some(ColorF::new(0.3, 0.3, 0.32, 1.0)),
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});
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// Initialize state.
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let mut event_pump = sdl_context.event_pump().unwrap();
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let mut mouse_position = Vector2F::default();
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let start_time = Instant::now();
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2020-02-21 17:46:10 -05:00
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let font_context = CanvasFontContext::from_system_source();
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2020-02-18 17:35:00 -05:00
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// Enter the main loop.
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loop {
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// Make a canvas.
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2020-02-21 17:46:10 -05:00
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let mut canvas = CanvasRenderingContext2D::new(font_context.clone(), window_size.to_f32());
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2020-02-18 17:35:00 -05:00
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// Render the demo.
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let time = (Instant::now() - start_time).as_secs_f32();
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2020-03-30 19:18:41 -04:00
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render_demo(&mut canvas, mouse_position, window_size.to_f32(), time, &demo_data);
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2020-02-18 17:35:00 -05:00
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// Render the canvas to screen.
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let scene = SceneProxy::from_scene(canvas.into_scene(), RayonExecutor);
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scene.build_and_render(&mut renderer, BuildOptions::default());
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window.gl_swap_window();
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for event in event_pump.poll_iter() {
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match event {
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Event::Quit {..} | Event::KeyDown { keycode: Some(Keycode::Escape), .. } => return,
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Event::MouseMotion { x, y, .. } => {
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mouse_position = Vector2I::new(x, y).to_f32();
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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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