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|
//! Write some text for your users to read.
use crate::backend::{self, Backend};
use crate::{Primitive, Renderer};
use iced_native::alignment;
use iced_native::mouse;
use iced_native::text;
use iced_native::{Color, Font, Point, Rectangle, Size};
/// A paragraph of text.
///
/// This is an alias of an `iced_native` text with an `iced_wgpu::Renderer`.
pub type Text<Backend> = iced_native::Text<Renderer<Backend>>;
use std::f32;
impl<B> text::Renderer for Renderer<B>
where
B: Backend + backend::Text,
{
type Font = Font;
fn default_size(&self) -> u16 {
self.backend().default_size()
}
fn measure(
&self,
content: &str,
size: u16,
font: Font,
bounds: Size,
) -> (f32, f32) {
self.backend()
.measure(content, f32::from(size), font, bounds)
}
fn hit_test(
&self,
content: &str,
size: f32,
font: Font,
bounds: Size,
point: Point,
nearest_only: bool,
) -> Option<text::Hit> {
self.backend().hit_test(
content,
size,
font,
bounds,
point,
nearest_only,
)
}
fn draw(
&mut self,
defaults: &Self::Defaults,
bounds: Rectangle,
content: &str,
size: u16,
font: Font,
color: Option<Color>,
horizontal_alignment: alignment::Horizontal,
vertical_alignment: alignment::Vertical,
) -> Self::Output {
let x = match horizontal_alignment {
alignment::Horizontal::Left => bounds.x,
alignment::Horizontal::Center => bounds.center_x(),
alignment::Horizontal::Right => bounds.x + bounds.width,
};
let y = match vertical_alignment {
alignment::Vertical::Top => bounds.y,
alignment::Vertical::Center => bounds.center_y(),
alignment::Vertical::Bottom => bounds.y + bounds.height,
};
(
Primitive::Text {
content: content.to_string(),
size: f32::from(size),
bounds: Rectangle { x, y, ..bounds },
color: color.unwrap_or(defaults.text.color),
font,
horizontal_alignment,
vertical_alignment,
},
mouse::Interaction::default(),
)
}
}
|
