cacao/examples/custom_image_drawing.rs
2022-07-31 20:09:59 -07:00

139 lines
5.4 KiB
Rust

//! This example showcases how to do custom drawing on an ImageView
//! with CoreGraphics. Feel free to modify it and play around!
use cacao::appkit::menu::{Menu, MenuItem};
use cacao::appkit::window::Window;
use cacao::appkit::{App, AppDelegate};
use cacao::color::Color;
use cacao::layout::{Layout, LayoutConstraint};
use cacao::view::View;
use cacao::image::{DrawConfig, Image, ImageView};
struct BasicApp {
window: Window,
content_view: View,
image_view: ImageView,
image: Image
}
impl Default for BasicApp {
fn default() -> Self {
let config = DrawConfig {
source: (100., 100.),
target: (800., 800.),
resize: cacao::image::ResizeBehavior::Stretch
};
Self {
window: Window::default(),
content_view: View::new(),
image_view: ImageView::new(),
image: Image::draw(config, |_cg_rect, context| {
context.move_to_point(11.25, 8.19);
context.add_line_to_point(11.25, 5.);
context.add_line_to_point(6.56, 5.);
context.add_curve_to_point(6.25, 5., 6., 5.25, 6., 5.56);
context.add_line_to_point(6., 16.44);
context.add_curve_to_point(6., 16.75, 6.25, 17., 6.56, 17.);
context.add_line_to_point(14.44, 17.);
context.add_curve_to_point(14.75, 17., 15., 16.75, 15., 16.44);
context.add_line_to_point(15., 8.75);
context.add_line_to_point(11.81, 8.75);
context.add_curve_to_point(11.5, 8.75, 11.25, 8.5, 11.25, 8.19);
context.close_path();
context.move_to_point(12.75, 13.72);
context.add_curve_to_point(12.75, 13.87, 12.62, 14., 12.47, 14.);
context.add_line_to_point(8.53, 14.);
context.add_curve_to_point(8.38, 14., 8.25, 13.87, 8.25, 13.72);
context.add_line_to_point(8.25, 13.53);
context.add_curve_to_point(8.25, 13.38, 8.38, 13.25, 8.53, 13.25);
context.add_line_to_point(12.47, 13.25);
context.add_curve_to_point(12.62, 13.25, 12.75, 13.38, 12.75, 13.53);
context.add_line_to_point(12.75, 13.72);
context.close_path();
context.move_to_point(12.75, 12.22);
context.add_curve_to_point(12.75, 12.37, 12.62, 12.5, 12.47, 12.5);
context.add_line_to_point(8.53, 12.5);
context.add_curve_to_point(8.38, 12.5, 8.25, 12.37, 8.25, 12.22);
context.add_line_to_point(8.25, 12.03);
context.add_curve_to_point(8.25, 11.88, 8.38, 11.75, 8.53, 11.75);
context.add_line_to_point(12.47, 11.75);
context.add_curve_to_point(12.62, 11.75, 12.75, 11.88, 12.75, 12.03);
context.add_line_to_point(12.75, 12.22);
context.close_path();
context.move_to_point(12.75, 10.53);
context.add_line_to_point(12.75, 10.72);
context.add_curve_to_point(12.75, 10.87, 12.62, 11., 12.47, 11.);
context.add_line_to_point(8.53, 11.);
context.add_curve_to_point(8.38, 11., 8.25, 10.87, 8.25, 10.72);
context.add_line_to_point(8.25, 10.53);
context.add_curve_to_point(8.25, 10.38, 8.38, 10.25, 8.53, 10.25);
context.add_line_to_point(12.47, 10.25);
context.add_curve_to_point(12.62, 10.25, 12.75, 10.38, 12.75, 10.53);
context.close_path();
context.move_to_point(15., 7.86);
context.add_line_to_point(15., 8.);
context.add_line_to_point(12., 8.);
context.add_line_to_point(12., 5.);
context.add_line_to_point(12.14, 5.);
context.add_curve_to_point(12.29, 5., 12.44, 5.06, 12.54, 5.16);
context.add_line_to_point(14.84, 7.46);
context.add_curve_to_point(14.94, 7.57, 15., 7.71, 15., 7.86);
context.close_path();
context.set_rgb_fill_color(1., 1., 1., 1.);
context.fill_path();
true
})
}
}
}
impl AppDelegate for BasicApp {
fn did_finish_launching(&self) {
App::set_menu(vec![Menu::new("", vec![
MenuItem::Services,
MenuItem::Separator,
MenuItem::Hide,
MenuItem::HideOthers,
MenuItem::ShowAll,
MenuItem::Separator,
MenuItem::Quit,
])]);
App::activate();
self.window.set_title("Hello World!");
self.image_view.set_background_color(Color::SystemBlue);
self.image_view.set_image(&self.image);
self.content_view.add_subview(&self.image_view);
LayoutConstraint::activate(&[
self.image_view.top.constraint_equal_to(&self.content_view.top),
self.image_view.leading.constraint_equal_to(&self.content_view.leading),
self.image_view.trailing.constraint_equal_to(&self.content_view.trailing),
self.image_view.bottom.constraint_equal_to(&self.content_view.bottom)
]);
self.window.set_content_view(&self.content_view);
self.window.show();
}
fn should_terminate_after_last_window_closed(&self) -> bool {
true
}
}
fn main() {
let app_delegate = BasicApp::default();
let app = App::new("com.hello.world", app_delegate);
app.run()
}