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Move the ItemRenderer to the item_rendering module

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This commit is contained in:
Olivier Goffart 2021-01-06 10:19:39 +01:00 • committed by Simon Hausmann
parent b0fd400cd1
commit c7ff67d0fc
7 changed files with 50 additions and 51 deletions
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40
sixtyfps_runtime/corelib/item_rendering.rs
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@ -11,10 +11,12 @@ LICENSE END */
//! module for rendering the tree of items
use super::graphics::{GraphicsBackend, RenderingCache};
use super::items::ItemRef;
use super::items::*;
use crate::component::ComponentRc;
use crate::graphics::{Point, Rect};
use crate::item_tree::ItemVisitorResult;
use crate::slice::Slice;
use core::pin::Pin;
use std::cell::{Cell, RefCell};
/// This structure must be present in items that are Rendered and contains information.
@ -61,8 +63,6 @@ pub(crate) fn render_component_items<Backend: GraphicsBackend>(
renderer: &mut Backend::ItemRenderer,
origin: crate::graphics::Point,
) {
use crate::items::ItemRenderer;
let renderer = RefCell::new(renderer);
crate::item_tree::visit_items_with_post_visit(
@ -71,10 +71,8 @@ pub(crate) fn render_component_items<Backend: GraphicsBackend>(
|_, item, _, translation| {
let saved_clip = renderer.borrow_mut().clip_rects();
item.as_ref().render(
*translation,
&mut (*renderer.borrow_mut() as &mut dyn crate::items::ItemRenderer),
);
item.as_ref()
.render(*translation, &mut (*renderer.borrow_mut() as &mut dyn ItemRenderer));
let origin = item.as_ref().geometry().origin;
let translation = *translation + euclid::Vector2D::new(origin.x, origin.y);
@ -97,3 +95,31 @@ pub(crate) fn free_item_rendering_data<'a, Backend: GraphicsBackend>(
renderer.borrow().release_item_graphics_cache(cached_rendering_data)
}
}
pub trait ItemRenderer {
/// will draw a rectangle in (pos.x + rect.x)
fn draw_rectangle(&mut self, pos: Point, rect: Pin<&Rectangle>);
fn draw_border_rectangle(&mut self, pos: Point, rect: Pin<&BorderRectangle>);
fn draw_image(&mut self, pos: Point, image: Pin<&Image>);
fn draw_clipped_image(&mut self, pos: Point, image: Pin<&ClippedImage>);
fn draw_text(&mut self, pos: Point, text: Pin<&Text>);
fn draw_text_input(&mut self, pos: Point, text_input: Pin<&TextInput>);
fn draw_path(&mut self, pos: Point, path: Pin<&Path>);
fn combine_clip(&mut self, pos: Point, clip: &Pin<&Clip>);
fn clip_rects(&self) -> SharedVector<Rect>;
fn reset_clip(&mut self, rects: SharedVector<Rect>);
/// Returns the scale factor
fn scale_factor(&self) -> f32;
/// Draw a pixmap in position indicated by the `pos`.
/// The pixmap will be taken from cache if the cache is valid, otherwise, update_fn will be called
/// with a callback that need to be called once with `fn (width, height, data)` where data are the
/// argb premultiplied pixel values
fn draw_cached_pixmap(
&mut self,
item_cache: &CachedRenderingData,
pos: Point,
update_fn: &dyn Fn(&mut dyn FnMut(u32, u32, &[u8])),
);
}