mirror of
https://github.com/trezor/trezor-firmware.git
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89 lines
2.1 KiB
Rust
89 lines
2.1 KiB
Rust
#[cfg(feature = "jpeg")]
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use crate::ui::geometry::Offset;
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use crate::ui::{
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component::{image::Image, Component, Event, EventCtx, Never},
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display,
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geometry::{Alignment2D, Rect},
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shape,
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shape::Renderer,
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};
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pub struct Painter<F> {
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area: Rect,
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func: F,
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}
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impl<F> Painter<F> {
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pub fn new(func: F) -> Self {
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Self {
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func,
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area: Rect::zero(),
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}
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}
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}
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impl<F> Component for Painter<F>
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where
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F: FnMut(Rect),
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{
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type Msg = Never;
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fn place(&mut self, bounds: Rect) -> Rect {
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self.area = bounds;
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self.area
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}
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fn event(&mut self, _ctx: &mut EventCtx, _event: Event) -> Option<Self::Msg> {
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None
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}
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fn paint(&mut self) {
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(self.func)(self.area);
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}
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fn render<'s>(&'s self, target: &mut impl Renderer<'s>) {
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let area = self.area;
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shape::Bar::new(area)
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.with_thickness(1)
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.with_fg(display::Color::white())
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.render(target);
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shape::Text::new(area.top_left(), "Paint").render(target); // !@# replace
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}
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#[cfg(feature = "ui_bounds")]
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fn bounds(&self, sink: &mut dyn FnMut(Rect)) {
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sink(self.area)
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}
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}
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#[cfg(feature = "ui_debug")]
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impl<F> crate::trace::Trace for Painter<F> {
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fn trace(&self, t: &mut dyn crate::trace::Tracer) {
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t.component("Painter");
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}
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}
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pub fn image_painter(image: Image) -> Painter<impl FnMut(Rect)> {
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let f = move |area: Rect| image.draw(area.center(), Alignment2D::CENTER);
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Painter::new(f)
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}
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#[cfg(feature = "jpeg")]
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pub fn jpeg_painter<'a>(
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image: impl Fn() -> &'a [u8],
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size: Offset,
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scale: u8,
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) -> Painter<impl FnMut(Rect)> {
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let off = Offset::new(size.x / (2 << scale), size.y / (2 << scale));
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#[cfg(not(feature = "new_rendering"))]
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let f = move |area: Rect| display::tjpgd::jpeg(image(), area.center() - off, scale);
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#[cfg(feature = "new_rendering")]
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let f = move |area: Rect| {};
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Painter::new(f)
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}
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pub fn rect_painter(fg: display::Color, bg: display::Color) -> Painter<impl FnMut(Rect)> {
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let f = move |area: Rect| display::rect_fill_rounded(area, fg, bg, 2);
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Painter::new(f)
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}
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