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-rw-r--r--native/src/renderer.rs69
-rw-r--r--native/src/renderer/null.rs291
2 files changed, 66 insertions, 294 deletions
diff --git a/native/src/renderer.rs b/native/src/renderer.rs
index 39a6cff1..ca7ad5a2 100644
--- a/native/src/renderer.rs
+++ b/native/src/renderer.rs
@@ -19,28 +19,17 @@
//! [`text::Renderer`]: crate::widget::text::Renderer
//! [`Checkbox`]: crate::widget::Checkbox
//! [`checkbox::Renderer`]: crate::widget::checkbox::Renderer
-
#[cfg(debug_assertions)]
mod null;
#[cfg(debug_assertions)]
pub use null::Null;
-use crate::{layout, Element, Rectangle};
+use crate::layout;
+use crate::{Background, Color, Element, Rectangle, Vector};
/// A component that can take the state of a user interface and produce an
/// output for its users.
pub trait Renderer: Sized {
- /// The type of output of the [`Renderer`].
- ///
- /// If you are implementing a graphical renderer, your output will most
- /// likely be a tree of visual primitives.
- type Output;
-
- /// The default styling attributes of the [`Renderer`].
- ///
- /// This type can be leveraged to implement style inheritance.
- type Defaults: Default;
-
/// Lays out the elements of a user interface.
///
/// You should override this if you need to perform any operations before or
@@ -53,12 +42,52 @@ pub trait Renderer: Sized {
element.layout(self, limits)
}
- /// Overlays the `overlay` output with the given bounds on top of the `base`
- /// output.
- fn overlay(
+ /// Draws the primitives recorded in the given closure in a new layer.
+ ///
+ /// The layer will clip its contents to the provided `bounds`.
+ fn with_layer(&mut self, bounds: Rectangle, f: impl FnOnce(&mut Self));
+
+ /// Applies a `translation` to the primitives recorded in the given closure.
+ fn with_translation(
&mut self,
- base: Self::Output,
- overlay: Self::Output,
- overlay_bounds: Rectangle,
- ) -> Self::Output;
+ translation: Vector,
+ f: impl FnOnce(&mut Self),
+ );
+
+ /// Clears all of the recorded primitives in the [`Renderer`].
+ fn clear(&mut self);
+
+ /// Fills a [`Quad`] with the provided [`Background`].
+ fn fill_quad(&mut self, quad: Quad, background: impl Into<Background>);
+}
+
+/// A polygon with four sides.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub struct Quad {
+ /// The bounds of the [`Quad`].
+ pub bounds: Rectangle,
+
+ /// The border radius of the [`Quad`].
+ pub border_radius: f32,
+
+ /// The border width of the [`Quad`].
+ pub border_width: f32,
+
+ /// The border color of the [`Quad`].
+ pub border_color: Color,
+}
+
+/// The styling attributes of a [`Renderer`].
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub struct Style {
+ /// The text color
+ pub text_color: Color,
+}
+
+impl Default for Style {
+ fn default() -> Self {
+ Style {
+ text_color: Color::BLACK,
+ }
+ }
}
diff --git a/native/src/renderer/null.rs b/native/src/renderer/null.rs
index b5921582..a5b2f277 100644
--- a/native/src/renderer/null.rs
+++ b/native/src/renderer/null.rs
@@ -1,20 +1,6 @@
-use crate::alignment;
-use crate::button;
-use crate::checkbox;
-use crate::column;
-use crate::container;
-use crate::pane_grid;
-use crate::progress_bar;
-use crate::radio;
-use crate::row;
-use crate::scrollable;
-use crate::slider;
-use crate::text;
-use crate::text_input;
-use crate::toggler;
-use crate::{
- Color, Element, Font, Layout, Padding, Point, Rectangle, Renderer, Size,
-};
+use crate::renderer::{self, Renderer};
+use crate::text::{self, Text};
+use crate::{Background, Font, Point, Rectangle, Size, Vector};
/// A renderer that does nothing.
///
@@ -30,33 +16,21 @@ impl Null {
}
impl Renderer for Null {
- type Output = ();
- type Defaults = ();
+ fn with_layer(&mut self, _bounds: Rectangle, _f: impl FnOnce(&mut Self)) {}
- fn overlay(&mut self, _base: (), _overlay: (), _overlay_bounds: Rectangle) {
- }
-}
-
-impl column::Renderer for Null {
- fn draw<Message>(
+ fn with_translation(
&mut self,
- _defaults: &Self::Defaults,
- _content: &[Element<'_, Message, Self>],
- _layout: Layout<'_>,
- _cursor_position: Point,
- _viewport: &Rectangle,
+ _translation: Vector,
+ _f: impl FnOnce(&mut Self),
) {
}
-}
-impl row::Renderer for Null {
- fn draw<Message>(
+ fn clear(&mut self) {}
+
+ fn fill_quad(
&mut self,
- _defaults: &Self::Defaults,
- _content: &[Element<'_, Message, Self>],
- _layout: Layout<'_>,
- _cursor_position: Point,
- _viewport: &Rectangle,
+ _quad: renderer::Quad,
+ _background: impl Into<Background>,
) {
}
}
@@ -64,6 +38,10 @@ impl row::Renderer for Null {
impl text::Renderer for Null {
type Font = Font;
+ const ICON_FONT: Font = Font::Default;
+ const CHECKMARK_ICON: char = '0';
+ const ARROW_DOWN_ICON: char = '0';
+
fn default_size(&self) -> u16 {
20
}
@@ -90,240 +68,5 @@ impl text::Renderer for Null {
None
}
- 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,
- ) {
- }
-}
-
-impl scrollable::Renderer for Null {
- type Style = ();
-
- fn scrollbar(
- &self,
- _bounds: Rectangle,
- _content_bounds: Rectangle,
- _offset: u32,
- _scrollbar_width: u16,
- _scrollbar_margin: u16,
- _scroller_width: u16,
- ) -> Option<scrollable::Scrollbar> {
- None
- }
-
- fn draw(
- &mut self,
- _scrollable: &scrollable::State,
- _bounds: Rectangle,
- _content_bounds: Rectangle,
- _is_mouse_over: bool,
- _is_mouse_over_scrollbar: bool,
- _scrollbar: Option<scrollable::Scrollbar>,
- _offset: u32,
- _style: &Self::Style,
- _content: Self::Output,
- ) {
- }
-}
-
-impl text_input::Renderer for Null {
- type Style = ();
-
- fn measure_value(&self, _value: &str, _size: u16, _font: Font) -> f32 {
- 0.0
- }
-
- fn offset(
- &self,
- _text_bounds: Rectangle,
- _font: Font,
- _size: u16,
- _value: &text_input::Value,
- _state: &text_input::State,
- ) -> f32 {
- 0.0
- }
-
- fn draw(
- &mut self,
- _bounds: Rectangle,
- _text_bounds: Rectangle,
- _cursor_position: Point,
- _font: Font,
- _size: u16,
- _placeholder: &str,
- _value: &text_input::Value,
- _state: &text_input::State,
- _style: &Self::Style,
- ) -> Self::Output {
- }
-}
-
-impl button::Renderer for Null {
- const DEFAULT_PADDING: Padding = Padding::ZERO;
-
- type Style = ();
-
- fn draw<Message>(
- &mut self,
- _defaults: &Self::Defaults,
- _bounds: Rectangle,
- _cursor_position: Point,
- _is_disabled: bool,
- _is_pressed: bool,
- _style: &Self::Style,
- _content: &Element<'_, Message, Self>,
- _content_layout: Layout<'_>,
- ) -> Self::Output {
- }
-}
-
-impl radio::Renderer for Null {
- type Style = ();
-
- const DEFAULT_SIZE: u16 = 20;
- const DEFAULT_SPACING: u16 = 15;
-
- fn draw(
- &mut self,
- _bounds: Rectangle,
- _is_selected: bool,
- _is_mouse_over: bool,
- _label: Self::Output,
- _style: &Self::Style,
- ) {
- }
-}
-
-impl checkbox::Renderer for Null {
- type Style = ();
-
- const DEFAULT_SIZE: u16 = 20;
- const DEFAULT_SPACING: u16 = 15;
-
- fn draw(
- &mut self,
- _bounds: Rectangle,
- _is_checked: bool,
- _is_mouse_over: bool,
- _label: Self::Output,
- _style: &Self::Style,
- ) {
- }
-}
-
-impl slider::Renderer for Null {
- type Style = ();
-
- const DEFAULT_HEIGHT: u16 = 30;
-
- fn draw(
- &mut self,
- _bounds: Rectangle,
- _cursor_position: Point,
- _range: std::ops::RangeInclusive<f32>,
- _value: f32,
- _is_dragging: bool,
- _style_sheet: &Self::Style,
- ) {
- }
-}
-
-impl progress_bar::Renderer for Null {
- type Style = ();
-
- const DEFAULT_HEIGHT: u16 = 30;
-
- fn draw(
- &self,
- _bounds: Rectangle,
- _range: std::ops::RangeInclusive<f32>,
- _value: f32,
- _style: &Self::Style,
- ) {
- }
-}
-
-impl container::Renderer for Null {
- type Style = ();
-
- fn draw<Message>(
- &mut self,
- _defaults: &Self::Defaults,
- _bounds: Rectangle,
- _cursor_position: Point,
- _viewport: &Rectangle,
- _style: &Self::Style,
- _content: &Element<'_, Message, Self>,
- _content_layout: Layout<'_>,
- ) {
- }
-}
-
-impl pane_grid::Renderer for Null {
- type Style = ();
-
- fn draw<Message>(
- &mut self,
- _defaults: &Self::Defaults,
- _content: &[(pane_grid::Pane, pane_grid::Content<'_, Message, Self>)],
- _dragging: Option<(pane_grid::Pane, Point)>,
- _resizing: Option<(pane_grid::Axis, Rectangle, bool)>,
- _layout: Layout<'_>,
- _style: &<Self as pane_grid::Renderer>::Style,
- _cursor_position: Point,
- _viewport: &Rectangle,
- ) {
- }
-
- fn draw_pane<Message>(
- &mut self,
- _defaults: &Self::Defaults,
- _bounds: Rectangle,
- _style: &<Self as container::Renderer>::Style,
- _title_bar: Option<(
- &pane_grid::TitleBar<'_, Message, Self>,
- Layout<'_>,
- )>,
- _body: (&Element<'_, Message, Self>, Layout<'_>),
- _cursor_position: Point,
- _viewport: &Rectangle,
- ) {
- }
-
- fn draw_title_bar<Message>(
- &mut self,
- _defaults: &Self::Defaults,
- _bounds: Rectangle,
- _style: &<Self as container::Renderer>::Style,
- _content: (&Element<'_, Message, Self>, Layout<'_>),
- _controls: Option<(&Element<'_, Message, Self>, Layout<'_>)>,
- _cursor_position: Point,
- _viewport: &Rectangle,
- ) {
- }
-}
-
-impl toggler::Renderer for Null {
- type Style = ();
-
- const DEFAULT_SIZE: u16 = 20;
-
- fn draw(
- &mut self,
- _bounds: Rectangle,
- _is_checked: bool,
- _is_mouse_over: bool,
- _label: Option<Self::Output>,
- _style: &Self::Style,
- ) {
- }
+ fn fill_text(&mut self, _text: Text<'_, Self::Font>) {}
}
generated by cgit (git 2.34.1) at 2025-05-09 10:43:23 +0000