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|
use crate::{Color, Font, Settings, Size, Viewport};
use iced_graphics::backend;
use iced_graphics::text;
use iced_graphics::Primitive;
use std::borrow::Cow;
pub struct Backend {
default_font: Font,
default_text_size: f32,
}
impl Backend {
pub fn new(settings: Settings) -> Self {
Self {
default_font: settings.default_font,
default_text_size: settings.default_text_size,
}
}
pub fn draw<T: AsRef<str>>(
&mut self,
pixels: &mut tiny_skia::Pixmap,
_primitives: &[Primitive],
_viewport: &Viewport,
background_color: Color,
_overlay: &[T],
) {
pixels.fill(into_color(background_color));
}
}
fn into_color(color: Color) -> tiny_skia::Color {
tiny_skia::Color::from_rgba(color.r, color.g, color.b, color.a)
.expect("Convert color from iced to tiny_skia")
}
impl iced_graphics::Backend for Backend {
fn trim_measurements(&mut self) {
// TODO
}
}
impl backend::Text for Backend {
const ICON_FONT: Font = Font::Name("Iced-Icons");
const CHECKMARK_ICON: char = '\u{f00c}';
const ARROW_DOWN_ICON: char = '\u{e800}';
fn default_font(&self) -> Font {
self.default_font
}
fn default_size(&self) -> f32 {
self.default_text_size
}
fn measure(
&self,
_contents: &str,
_size: f32,
_font: Font,
_bounds: Size,
) -> (f32, f32) {
// TODO
(0.0, 0.0)
}
fn hit_test(
&self,
_contents: &str,
_size: f32,
_font: Font,
_bounds: Size,
_point: iced_native::Point,
_nearest_only: bool,
) -> Option<text::Hit> {
// TODO
None
}
fn load_font(&mut self, _font: Cow<'static, [u8]>) {
// TODO
}
}
#[cfg(feature = "image")]
impl backend::Image for Backend {
fn dimensions(&self, _handle: &iced_native::image::Handle) -> Size<u32> {
// TODO
Size::new(0, 0)
}
}
#[cfg(feature = "svg")]
impl backend::Svg for Backend {
fn viewport_dimensions(
&self,
_handle: &iced_native::svg::Handle,
) -> Size<u32> {
// TODO
Size::new(0, 0)
}
}
|
