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165 lines
4.1 KiB
165 lines
4.1 KiB
use crate::ui::{
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component::{Component, Event, EventCtx, Never},
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display,
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display::{
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toif::{image, Toif, ToifFormat},
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Color, Icon,
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},
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geometry::{Alignment2D, Offset, Point, Rect},
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shape,
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shape::Renderer,
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};
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#[derive(PartialEq, Eq, Clone, Copy)]
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pub struct Image {
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pub toif: Toif<'static>,
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area: Rect,
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}
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impl Image {
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pub fn new(data: &'static [u8]) -> Self {
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let toif = unwrap!(Toif::new(data));
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assert!(toif.format() == ToifFormat::FullColorLE);
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Self {
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toif,
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area: Rect::zero(),
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}
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}
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/// Display the icon with baseline Point, aligned according to the
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/// `alignment` argument.
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pub fn draw(&self, baseline: Point, alignment: Alignment2D) {
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let r = Rect::snap(baseline, self.toif.size(), alignment);
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image(self, r.center());
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}
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}
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impl Component for Image {
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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.draw(self.area.center(), Alignment2D::CENTER);
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}
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fn render<'s>(&'s self, target: &mut impl Renderer<'s>) {
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shape::ToifImage::new(self.area.center(), self.toif)
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.with_align(Alignment2D::CENTER)
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.render(target);
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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(Rect::from_center_and_size(
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self.area.center(),
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self.toif.size(),
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));
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}
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}
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#[cfg(feature = "ui_debug")]
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impl crate::trace::Trace for Image {
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fn trace(&self, t: &mut dyn crate::trace::Tracer) {
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t.component("Image");
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}
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}
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pub struct BlendedImage {
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bg: Icon,
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fg: Icon,
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bg_color: Color,
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fg_color: Color,
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area_color: Color,
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bg_top_left: Point,
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fg_offset: Offset,
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}
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impl BlendedImage {
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pub fn new(bg: Icon, fg: Icon, bg_color: Color, fg_color: Color, area_color: Color) -> Self {
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Self {
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bg,
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fg,
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bg_color,
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fg_color,
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area_color,
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bg_top_left: Point::zero(),
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fg_offset: Offset::zero(),
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}
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}
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// NOTE: currently this function is used too rarely to justify writing special
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// case for unblended image.
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pub fn single(icon: Icon, color: Color, area_color: Color) -> Self {
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Self::new(icon, icon, color, color, area_color)
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}
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fn paint_image(&self) {
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display::icon_over_icon(
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None,
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(self.bg, self.bg_top_left.into(), self.bg_color),
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(self.fg, self.fg_offset, self.fg_color),
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self.area_color,
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);
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}
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}
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impl Component for BlendedImage {
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type Msg = Never;
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fn place(&mut self, bounds: Rect) -> Rect {
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self.bg_top_left = self
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.bg
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.toif
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.size()
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.snap(bounds.center(), Alignment2D::CENTER);
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let ft_top_left = self
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.fg
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.toif
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.size()
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.snap(bounds.center(), Alignment2D::CENTER);
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self.fg_offset = ft_top_left - self.bg_top_left;
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Rect::from_top_left_and_size(self.bg_top_left, self.bg.toif.size())
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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.paint_image();
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}
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fn render<'s>(&'s self, target: &mut impl Renderer<'s>) {
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shape::ToifImage::new(self.bg_top_left, self.bg.toif)
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.with_fg(self.bg_color)
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.render(target);
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shape::ToifImage::new(self.bg_top_left + self.fg_offset, self.fg.toif)
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.with_fg(self.fg_color)
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.render(target);
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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(Rect::from_top_left_and_size(
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self.bg_top_left,
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self.bg.toif.size(),
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));
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}
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}
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#[cfg(feature = "ui_debug")]
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impl crate::trace::Trace for BlendedImage {
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fn trace(&self, t: &mut dyn crate::trace::Tracer) {
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t.component("BlendedImage");
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}
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}
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